23-35-1002_SAM.pdf

VIBB 23-35-1002

24 January 2025

PURCHASE DESCRIPTION FOR THE ACQUISITION OF

VACUUM FURNACE

1.0 SCOPE.

1.1 Scope. The content of this specification describes the minimum requirements for the design, operation, construction, installation to CMXG Heat Treatment Shop, Warner Robins, Georgia, and acceptance procedures for a high temperature vacuum/inert furnace.

The furnace will be used to perform various heat treating processes. The furnace shall be heat treat and quench most common steels (A2, A6) as well as Stainless Steel Grade 316, and 718 Inconel - to relevant AMS standards (such as 2750 H, 6875, etc)- in order to serve as an efficient supplementary process.

2.0 APPLICABLE DOCUMENTS. The documents listed in this section are cited in sections 3 and 4 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all requirements of documents cited in sections 3 and 4 of this specification, whether or not they are listed in section 2. Unless otherwise specified, the documents listed in the solicitation or contract shall be the current edition at time of solicitation.

2.1 Government Documents.

2.1.1 Specifications, Standards, and Handbooks. The following specifications, standards and handbooks form a part of this document to the extent specified herein.

STANDARDS – FEDERAL

FED-STD-H28B: Screw Thread Standards for Federal Service

FED-STF-313F: Material Safety Data, Transportation Data, and Disposal Data for Hazardous Materials Furnished to Government Activities.

U.S Department of Labor, Occupational Safety and Health Administration

(OSHA)

29 CFR 1910: General Industry, OSHA Safety and Health Standards

(Application for copies should be addressed to the OSHA Publications Superintendent of Documents P.O. Box 37535 Washington, D.C. 20013-7535)

U.S Environmental Protection Agency (EPA)

40 CFR Part 82: Protection of Stratospheric Ozone Standards

(Application for copies should be addressed to the U.S. Government Publishing Office, 732 North Capitol Street, NW, Washington, DC 20401-0001)

MILITARY STANDARDS

MIL-STD-130N w/Change 1: Identification Marking of U.S. Military Property Item Unique Identification Marking (IUID)

(Application for copies should be addressed to Air Force Product Data Systems Modernization Standards (TMSS) Office, 554 ELSG/SBP, 4375 Chidlaw Road, Bldg. 262, Room S008, Wright-Patterson AFB, OH 45433-5006, Phone (937) 257- 0870 or 0853 or https://quicksearch.dla.mil/qsSearch.aspx)

2.1.2 Other Government Documents, Drawings, and Publications. The following other Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the documents listed in the solicitation or contract shall be the current edition at time of solicitation.

LOCAL FACILITY DOCUMENTS

Attachment: Shop Layout & Nitrogen Tank Location

2.2 Non-Government Publications, Specifications, Standards, and Handbooks. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the documents listed in the solicitation or contract shall be the current edition at time of solicitation.

American National Standards Institute (ANSI)

ANSI B11: Machinery Safety Standards

(Application for copies should be addressed to the American National Standards Institute (ANSI) Headquarters, 1899 L Street, NW, 11th Floor, Washington, DC 20036)

International Organization for Standardization (ISO)

ISO 4414: Pneumatic power-General rules and safety requirements for systems and their components

(Application for copies should be addressed to the International Organization for Standardization (ISO) 1 rue de Varembé, Casepostale56, CH211Geneva 20, Switzerland) https://quicksearch.dla.mil/qsSearch.aspx

National Electrical Manufacturers Association (NEMA)

NEMA 250: Enclosures for Electrical Equipment (1000 V Maximum)

(Application for copies should be addressed to the National Electrical Manufacturers Association, 1300 N 17th Street, Rosslyn, VA 22209)

National Fire Protection Association (NFPA)

NFPA 70: National Electrical Code

NFPA 79: Electrical Standard for Industrial Machinery

NFPA 86: Standard for Ovens and Furnaces

(Applications for copies should be addressed to the National Fire Protection Association, ATTN: Support Services, 11 Tracy Drive, Avon, MA 02322)

Society of Automotive Engineers (SAE) Aerospace Material Specification

(AMS)

SAE AMS 2750: Pyrometry

(Application for copies should be addressed to: Society of Automotive Engineers 400 Commonwealth Drive, Warrendale PA 15096)

2.3 Order of Precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulation unless a specific exemption has been obtained.

2.4 Acronym Definitions Not Explicitly Listed in Text. The following acronyms not explicitly listed in each section text are defined as follows:

a. JIS- Japanese Industrial Standards

b. DIN- German Institute for Standardization

c. EN- European Standard

2.5 Numerical Definitions. The government will follow the following mathematical conventions:

a. Whole numbers will be expressed where one thousand is written as 1,000.

b. Decimals will be expressed where one-tenth is written as 0.1.

3.0 REQUIREMENTS.

3.1 Design. The item offered shall be new and a current commercially available model. A current model is defined as the manufacturer’s currently produced model which, on the date this solicitation is issued, has been designed, engineered, sold or is being offered for sale through advertisements or manufacturer’s published catalogue or brochures. Products such as a prototype unit, pre-production model, or experimental unit do not qualify as meeting the requirements specified herein. The machine shall include all components, parts, and features necessary to meet the performance requirements specified herein. All parts subject to wear, breakage or distortion shall be accessible for adjustment, replacement, and repair.

3.1.1 Measuring and Indicating Device Graduations. All measuring and indicating devices on the machine shall be graduated in the English system or units (degrees, Fahrenheit, etc.)

3.1.2 Controls. All electrical, mechanical, hydraulic, and pneumatic operating controls shall be located convenient to the operator's work station(s).

3.1.3 Safety and Health Requirements. All machine parts, components, mechanisms, and assemblies furnished on the machine, whether or not specifically required herein, shall comply with all of the requirements of OSHA 29 CFR 1910 or equivalent ISO/EN/DIN/JIS standards. At the time of proposal, the vendor shall indicate which document they will utilize for compliance to the requirements.

3.1.3.1 Safety Guarding. Covers, guards, or other safety devices shall be provided per ANSI B11 or equivalent ISO/EN/DIN/JIS standards. At the time of proposal, the vendor shall indicate which document they will utilize for compliance to the requirements. The safety devices shall not interfere with the operation of the machine. The safety devices shall prevent unintentional contact with the guarded part, and shall be easily removed to facilitate inspection, maintenance, and repair of the parts.

3.1.4 Audible Noise Level. Audible noise emitted by the equipment shall not exceed 84 decibels (dB), measured on the “A” weighted scale of a standard Type II sound level meter, at the operator's work position or any point at a distance of three (3) feet from the equipment. Noise generated by the work piece shall be excluded in determining compliance of the equipment with the 84 dB requirements.

3.1.5 Hazardous Material Exclusions. Supplies or materials being provided as part of the equipment shall be free of known hazardous materials. These materials shall not be brought on site without prior approval of the Government. Radioactive materials or instruments capable of producing ionizing radiation as well as materials which contain asbestos, mercury, lithium, methylene chloride, lead (= or >0.06%), or polychlorinated biphenyls (PCB’s) are prohibited. Definitions of hazardous materials are specified in the latest version, including revisions adopted during the term of the contract, of FED-STD-313F.

Nickel Metal Hydride and lithium batteries are permissible for memory backup. Class I Ozone Depleting Substances as defined in 40 CFR 82 shall not be used in the performance of this contract, or be provided as part of the equipment. Exceptions to the prohibition of these materials must be referred to the Contracting Officer in writing, for consideration, not later than 60 calendar days after effective date of contract and prior to any work being performed.

3.1.6 Environmental Protection. Under the operating, service, transportation, and storage conditions described herein, the machine shall not emit materials hazardous to the ecological system as prohibited by Federal, state, or local statutes in effect at the point of installation.

3.1.7 Lubrication. Where applicable, when the machine is equipped with a recirculating lubrication system, it shall include a filter that is cleanable or replaceable. Each lubricant reservoir shall have at least a 24-hour capacity. Means shall be provided to indicate a low lubrication condition . All oil holes, grease fittings, and filler caps shall be easily accessible.

3.1.8 Replacement Parts. All parts subject to replacement shall be manufactured to definite dimensions and tolerances. Replacement parts shall be interchangeable without requiring modification. Replacement parts are those that are subject to wear or failure such as gears, bearings, shafts, feed screws, drive belts, pumps, and seals. Electrical replacement parts shall include but not be limited to, motors, relays, fuses, switches, magnetics, pushbuttons, light bulbs, braking mechanisms, and solid-state devices. Tooling and accessories normally supplied as standard items shall also be considered replacement parts.

Foreign-sourced replacement parts shall either be interchangeable with domestically supplied components or be readily available from a domestic source.

3.2 Construction. The machine shall be constructed of parts that are new, without defects, and free of repairs. The structure shall withstand all forces encountered during operation of the machine to its maximum rating and capacity without distortion.

3.2.1 Castings and Forgings. All castings and forgings shall be free of defects, scale, and mismatching. No processes such as welding, peening, plugging, filling with solder or paste shall be used for reclaiming any defective part.

3.2.2 Fastening Devices. All screws, pins, bolts, and other fasteners shall be installed to prevent unintentional loosening. Fastening devices subject to removal or adjustment shall not be permanently installed.

3.2.3 Threads. All threaded parts used on the machine and its related attachments and accessories shall conform to FED-STD-H28B and the applicable “Detailed Standard” section referenced therein or equivalent ISO/EN/DIN/JIS standards. At the time of proposal, the vendor shall indicate which document they will utilize for compliance to the requirements.

3.2.4 Surfaces. All surfaces shall be clean and free of harmful or extraneous materials. All edges shall be either rounded or beveled unless sharpness is required to perform a necessary function. The condition and finish of all surfaces shall be in accordance with the manufacturer's commercial practice.

3.2.5 Welding, Brazing, or Soldering. Welding, brazing, or soldering shall be employed only where specified in the original design. None of these operations shall be employed as a repair measure for any defective part.

3.2.6 Painting. The machine shall be painted in accordance with the manufacturer’s commercial practice. All paint shall be of the lead free type.

3.2.7 Workmanship. Workmanship of the machine shall meet all requirements specified herein and shall be of a quality equal to that prevailing among manufacturers producing equipment of the type covered by this purchase description.

3.3 Components. The vacuum furnace shall be a a complete horizontal, front loading vacuum heat treat furnace system with a dual-gas quenching system (Argon and Nitrogen) and vacuum cooling. It shall be electrically heated.The system shall consist of, but not limited to, the following: Chamber Assembly, Plenum (Hot Zone) with hearth, Vacuum System, Power Supply, Water Cooling System, Thermocouples, Gas Quench and Cooling System and Controls and gauges. The contractor shall furnish all equipment normally considered standard for the machine, whether specifically called out in this purchase description, or not. The furnace chamber, end, and door shall meet the requirements of the ASME Boiler and Pressure Vessel Code, Section VIII, Pressure Vessels, Division 1 (ASME BPVC.CC.BPV). An authorized ASME pressure vessel builder that is certified to the operating the absolute pressure shall make the vessel. The componenents and operation of the furnace shall conform to the requirements of NFPA 86.The machine shall consist of not less than the following components.:

3.3.1 Chamber Assembly. The assembly shall consist of dual cylindrical furnace vessels made of carbon steel plate inner and outer shells. The shalls shall be welded to form a water-jacketed vessel water cavity. All welds exposed to vacuum shall be welded to ensure vacuum integrity and all surfaces exposed to vacuum shall be coated with a rust preventative, low out gassing, high temperature coating.

3.3.1.1 Access Door Furnace shall have a front door with a hinge assembly for convenient access to the heat zone/work-load area. Furnace shall be double-walled and have a water-cooled main furnace chamber. The door shall be vacuum tight and assure long life of seals.

3.3.1.2 Thermocouple Port Jack. The assembly shall have an internally and externally mounted thermocouple port-jack assembly for twelve (12) load thermocouples (type “K”) for checking temperature uniformity. The lead wires shall be terminated internally to a twelve (12) circuit, two pole , Type “K”, high temperature “female” strip panel mounted on the internal vacuum vessel cold wall. The assembly shall also contain a Type “N” high temperature resident System Accuracy Test (SAT) thermocouple with a labelled external connection port jack. The resident SAT sensor thermocouple and temperature uniformity thermocouples shall follow all applicable AMS 2750 standards.

3.3.1.3 Cooling System. The cooling system shall include following:

a. Water manifolds that have a series of flow control valves on the drain manifold to control the individual water flow to each circuit.

b. A main water flow switch interlocked with the heater such that any water flow interruption for more than 5 seconds shall turn off the heater power.

c. Independent chiller-based cooling system with city water back up in the event of primary cooling system failure.

3.3.1.4 Power Feed Assembly. The power feed through assembly shall be vacuum tight and appropriate for high vacuum levels of vacuum operation. Power terminals shall be supported from water-cooled feedthroughs on the wall of the cylindrical heating chamber and be accessible from the hot face side of the thermal insulation assembly.

3.3.1.5 Plenum (Hot Zone). The hot zone shall be a cylindrical design. The liner shall be constructed from stainless steel plate thoroughly lined with a multiple of radiation shields.

The shield layers shall consist of three (3) layers of molybdenum sheet and fourth and fifth metallic layers stainless steel sheet. The hot zone construction shall have the gas injection nozzels configured for rapid and uniform load cooling. The nozzels shall be grahite or molybdenum material and cylindrically located in the hot zone.

3.3.1.6 Heating Elements. The heating elements shall be constructed of isostatic-presses graphite surrounding the entire hot zone. The elements shall be of a segemented design for ease of replacement, be evenly distributed to provide optiumum temperature uniformity.

3.3.1.7 Hearth Design. The work support shall consist of heavy-duty rail/beam and support post constructed of graphite or molybdenum. The hearth shall support a uniformly distrusted loat at 2,400°F.

3.3.1.8 Vacuum System. The vacuum system shall be comprised of , but not limited to, a diffusion pump, holding pump, mechanical pumo/vacuum blower, valves and piping etc.

necessary for proper operation. All vacuum valves shall be interlocked for automatic sequencing through initial evacuation and backfill. In the event of power failure, valves shall close to protect the furnace chamber environment.

3.3.1.9 Thermocouples. Control and over temperature Thermocouples shall be type “S”.

Work Thermocouple shall be Type “K”. System Accuracy Test resident sensors shall be type “N”.

3.3.1.10 Survey Rack. One survey rack of sufficient size and configuration shall be provided to support measurement of hot zone uniformity test in 4.7.2. The survey rack shall have thermocouple wells positioned in accordance with AMS 2750H requirements.

3.3.1.11 Piping. All process piping shall be labeled for flow direction and fluid.

3.3.2 Pneumatic System. Under the condition that a machine has a pneumatic system, the system shall conform to ISO 4414. The system shall be complete, including all pumps, valves, piping, cylinders, and pressure controls. A machine that does not require a pneumatic system to operate properly shall be considered acceptable.

3.3.3 Electrical System. The machine shall conform to NFPA 79 or current equivalent ISO/EN/DIN/JIS/IEC standards. At the time of proposal, the vendor shall indicate which document they will utilize for compliance to the requirements. The existing source power available at the facility is 480 volt, 3-phase, 60 Hertz (Hz). The machine’s electrical system shall be tolerant of fluctuation of ± 10 percent. The electrical system shall be complete, including any electrical transformer(s) that may be required to modify the existing source voltage to the proper operating voltage of the equipment. A properly rated, and fused, single disconnect device shall be utilized on the machine with means of lockout in the off position only.

3.3.3.1 Electrical Enclosures. Construction of the electrical enclosures shall be in accordance with NEMA 250 type 12 or current equivalent ISO/EN/DIN/JIS/IEC standards and shall provide for ventilation of components and shall be designed for an indoor non-hazardous location. All electrical components shall conform to NFPA 79 or equivalent ISO/EN/DIN/JIS standards. The machine shall be provided with interlocks on its electronic cabinet that shall instantly remove power from the equipment when the door is opened in accordance with NFPA 79 or current equivalent ISO/EN/DIN/JIS/IEC standards. At the time of proposal, the vendor shall indicate which document they will utilize for compliance to the requirements.

3.3.3.2 Programmable Logic Controller (PLC). The PLC shall be a heat treatment specific controller used to control all aspects of the vacuum furnace’s operation. It shall collect the data necessary to comply with AMS 2750H. It shall feature a variety of accounts with different access levels, such as: operator (able to control the ovens and edit part recipes, but not edit underlying programs/software), maintenance (able to troubleshoot, edit underlying software, and operate the oven), and administrator (full access). The PLC must comply with government IT regulations and will not have any wireless data connections. All data connections will be wired utilizing connections such as USB and ethernet. The PLC shall also comply with standard calibration procedures for the oven system, the controller itself, and AMS testing requirements. The software needed to access and edit the PLC software and HMI (for use in editing the bias for example) will be provided to RAFB MXSG maintenance representatives. The PLC shall have external calibration connection points. The PLC shall use Allen Bradley software for standardization and IT security standard compliance. The internal temperature control module shall meet AMS 2750H Table 7 requirements (along with all temperature controls/limiters) and have an externally accessible thermocouple port jack.

3.3.3.2.1 All calibrated equipment specifications (including make, model, calibration tolerances, etc) with their requisite manufacturer calibration data shall be provided prior to award for review by RAFB MXSG PMEL personnel to ensure compliance with government calibration standards. Government calibration standards are AMS 2750H for associated equipment (such as the PLC, temperature controllers, data recorders, dew point gauges) and manufacturer specifications for all others (such as nitrogen flow gauges, non-heat treat pressure gauges).

3.3.3.3 Arc Flash Protection. The machine enclosures shall be marked for arc flash in accordance with NFPA 79 Paragraph 16.2.3 “Safety Signs for Electrical Enclosures” or current equivalent ISO/EN/DIN/JIS/IEC standards for arc flash safety. At the time of proposal, the vendor shall indicate which document they will utilize for compliance to the requirements.

3.3.3.4 Solid-State Components. Electrical devices used to power electrical servo and spindle motors of control voltage delivered to solid-state electrical components shall be solid-state devices. Such devices shall be equipped to handle the electrical load imposed by operation of the machine to its maximum potential. The use of selenium in solid-state components shall be restricted to those devices that protect other solid-state components from voltage surge.

3.3.4 Temperature Controller. The temperature controller shall include the following:

a. Temperature range 900-2,400°F (cleanup cycle at 2500°F)

b. Furnace controller shall log job and furnace data as per AMS 2750 H requirements.

c. Furnace shall be interoperable with Digital Controllers with Imperial/English (Fahrenheit, etc) readouts.

d. Survey Rack.

e. Thermocouple Port Jack.

f. Should a power outage occur, all valves shall automatically close.

g. A single point disconnect switch is required for the control box.

3.3.4.1 Vacuum and Gas System. The Vacuum and gas system shall include the following:

a. A relief valve to maintain an internal pressure in the chamber.

b. Safety relief valve to relieve the system over pressure.

c. A solenoid operated inlet gas valve.

d. A gas flow meter with integral flow control valve.

e. A single point inert gas supply connection.

f. A electro-pneumatically operated vacuum valve

g. Nitrogen and Argon gas quench pressure of 10 bar (130 psig)

h. A leak up rate of < 5 Microns per hour

i. The ultimate vacuum shall be within the typical high vacuum range of 1*10-3

Torr to 1*10-9 Torr

j. The backfill pressure will be controlled automatically to the pressure level set point as an event in the cycle or program.

k. All tanks shall have pressure and capacity gauges.

l. All lines shall have flow guages

3.3.4.2 Dual-Gas Quench Backfill Tanks. “Backfill tanks” (sometimes referred to as “surge tanks”) is the designated verbiage for the storage tanks located next to the vacuum furnace that pump the quenching gas into the heating chamber at the appropriate pressures and speeds to quench the parts. The nitrogen backfill tank will be connected to the Liquid Nitrogen Bulk Tank system listed in 3.3.4.3. The argon backfill tank shall have inlet connection points to be used when filling the tank with portable argon bottles. The dual-gas quenching system will have the appropriate control valves to prevent gas mixture or leakage. These will be controlled by the control system/programmable logic controller

(PLC).

3.3.4.3 Liquid Nitrogen (LN2) Bulk Tank Specifications. The LN2 shall bulk tank (“bulk tank” is the designated verbiage for the large capacity storage tank located outside of the shop that shall fill the “backfill tanks” after a quenching operation) shall include the following:

a. 3000 Gallon tank minimum

b. Normal operating conditions – 180-200 PSI

c. Service = LN2 (-321°F)

d. Maximum Allowable Working Pressure (MAWP) = 250 PSI or greater

e. Code = ASME PVC Section VIII Division 1, ASME B31.3 for piping, and

B16.34 for valves

f. Tank shall have dual safety relief valves with three way valve for easy PRV replacement

g. Tank shall be Mass Spectrometer Leak-Tested to ensure vacuum integrity

h. Vessel shall be pressure tested and X-rayed

i. All internal parts, vessel, piping, and accessories that will come in contact with the Liquid Nitrogen fluid shall be Commercial cleaned per ISO 14952.

j. All piping coming out of the tank and connecting to the vaporizer shall be 304

Stainless Steel.

k. Pressure relief valves are required on piping where liquid nitrogen can become trapped in between two valves.

l. The feed lines from the tank to the furnace shall be sized in accordance with the furnace manufacturer’s quench chamber fill rate requirements

m. All piping and fittings that Liquid Nitrogen runs through shall be butt welded.

Socket welds shall be avoided.

n. Contractor shall deliver bulk tank, remove tank off the delivery truck, and anchor to concrete pad per Manufacturer’s recommendations

3.3.4.4 Vaporizer. The contractor shall provide an ambient air vaporizer, install, and connect to bulk tank with stainless steel piping/tubing.

a. Vaporizer shall have a capacity of 9,000 SCFH minimum.

b. Vaporizer shall conform to the same pressure and temperature requirements as the Liquid Nitrogen Tank listed in 3.3.4.3

c. Vaporizer shall conform to the same codes, standards, and testing requirements as the Liquid Nitrogen Tank listed in 3.3.4.3

3.3.4.5 Viewing Window. The furnace chamber shall be equipped with a centered front window with a clear view through the hot zone, of at least 2-inches in diameter. The window port shall have inert gas purge. The windows shall be made of high purity quartz (amorphous silica).

3.3.5 Motors. Motors shall be rated for continuous duty. Alternating-current (AC) motors shall be designed to operate on 60-Hz and each motor enclosure shall meet the requirements for a drip-proof enclosure. All motors shall meet the requirements of NEMA MG-1 or current equivalent ISO/EN/DIN/JIS/IEC standards. At the time of proposal, the vendor shall indicate which document they will utilize for compliance to the requirements.

Each motor shall have an identification plate in accordance with paragraph 3.7 to identify manufacturer, model number, serial number, voltage, amperage, horsepower, phase, frequency, and frame number. Motor horsepower shall be the manufacturer’s standard or standard optional horsepower as indicated on the manufacturer's design and construction drawing(s).

3.3.6 Facility Connections. Electrical connections made to the facility electrical system shall conform to NFPA 70.

3.3.7 Hour Meter. The machine shall be equipped with an analog non-resetting type, hour meter to display accumulated operating time of the heating elements, mounted on the main electrical panel visible from the outside, sealed to prevent the entrance of dust and moisture, and shall be mounted to withstand shock and vibration generated by the machine.

The meter shall have a range of 0 to 99,999.9 hours in increments of one (1) tenth of one

(1) hour .The meter shall be sealed to prevent the entrance of dust and moisture and shall be mounted to withstand shock and vibration generated by the machine. A digital non-resetting hour meter shall be installed in the PLC controller for comparison to the analog meter.

3.4 Size and Capacity. The size and capacity of the machine shall be not less than specified in Table I.

TABLE I

Max Allowable Installation Space 18’10” x 17’9”x 12’10” (see attachment a) Working Chamber Dimensions (W,D,H) 24in x 36in x 24in Minimum Load Gross Weight 1200 pounds

Minimum Temperature 1000ºF Maximum Temperature 2400ºF (Clean up cycle 2500 ºF)

Temperature Uniformity of Empty Furnace (from ºF to ºF per AMS 2750H) ±10.0 ºF

3.5 Alignment and Accuracy Tolerances. Sensor calibration accuracy shall be in accordance with Table 1 SAE AMS 2750 REV H.

3.6 Standard Tooling and Equipment. All standard tooling and equipment required for proper operation and maintenance of the machine shall be provided. A list of these items shall be furnished at time of proposal.

3.7 Marking on Instruments, Control Panels, and Plates. All words on plates shall be in the English language. Characters shall be engraved, etched, embossed, or stamped in boldface on a contrasting background. All plates shall be corrosion resistant.

3.7.1 Lubrication Plate. A lubrication plate shall be permanently and securely attached to each machine. The plate shall contain the following information.

Points of Lubricant Application Servicing Interval Type of Lubricant Viscosity Military or Federal Specification for Each Lubricant (If available) Size and Type of Each Lubricant Filter

3.7.2 Nameplate. A nameplate shall be permanently and securely attached to each machine. The nameplate shall contain the information listed below. If the machine is a special model, the model designation shall include the model number of the basic standard machine and a suffix identified in the manufacturer's permanent records.

Nomenclature Manufacturer’s Name Manufacturer’s Model Designation Manufacturer’s Serial Number Power Input (Volts, Total Amps, Phase, Frequency) Machine Weight Contract Number Date of Manufacture

3.7.3 Identification Marking of Military Property. An Item Unique Identification Marking (IUID) shall be provided in accordance with MIL-STD-130N and all applicable documents within the standard with Machine Readable Information (MRI) for item identification marking and automatic data capture. The application of Human Readable Information (HRI) shall be used in combination with MRI and free text. At a minimum this tag shall contain the information listed in paragraph 3.7.2 Nameplate.

3.8 Technical Data. Three (3) hard copies and one (1) electronic copy(s) of technical data shall be provided with the machine. Technical data shall contain machine specifications

(machine size, weight, utility requirements, lifting points/relocation requirements, etc), instructions for the operation, maintenance of the machine, and recommended spare parts list. All copies of technical data shall be legible and written in the English language.

3.8.1 Plan of Action and Milestones (POA&M). The contractor shall provide a POA&M to identify contractor performance dates of all major events from contract award to completion of all contract requirements. The initial POA&M shall be delivered thirty (30) calendar days After Contract Award (ACA). The milestones shall be prepared using a recognized project management technique (preferably Microsoft Project). The Government and the contractor shall review the report on a monthly basis. The contractor shall notify the Government prior to making any changes to the POA&M. All changes to the POA&M shall be approved in advance by the Government. The POA&M shall detail such items as engineering, procurement of major hardware, assembly, operational debug, factory acceptance, shipment, installation, training, and final acceptance test.

3.8.1.1 Machine Drawings. Drawings of the machine shall be provided prior to installation in both PDF and AutoCAD 2024 file formats. These files shall contain all dimensions.

3.8.1.2 Utility Connection Information. All utility connection information, electrical schematics, and bill of materials packages shall be provided prior to installation.

3.8.2 Acceptance Test Plan (ATP). The Contractor shall prepare an Acceptance Test Plan (ATP). The ATP shall be a step-by-step written instruction on how to verify compliance during Contract Quality Assurance Inspection and the Final Inspection/Acceptance Test specified in Sections 4.4 and 4.5. The Contractor shall submit two (2) copies of the manufacturer’s standard performance and operational test. Any procedures necessary for compliance with Section 4, which are not covered by the Manufacturer’s standard testing procedures, shall be identified and included in the ATP. The initial ATP shall be submitted thirty (30) calendar days ACA for Government review and approval. The accepted test procedures shall become part of this contract.

3.9 Installation. Installation shall be turnkey for all contracted items Contractor shall be responsible for all equipment (forklifts, man lifts, etc.) and materials for installation:

anchors, bolts, leveling pads, concrete, wiring, piping, electrical components, temporary bracing, hoses, touch-up paint, etc., and qualified personnel required for unloading, rigging, installation, and leveling the machine in place. Disturbed surfaces, disconnected machinery or equipment shall be returned to original condition. The contractor shall be a factory trained field service technician for the manufacturer. The contractor shall provide a completely operational system that meets the inspection and test requirements of section 4.

The contractor shall instruct the carrier that the machine shall be off loaded only under the supervision of representative of the contractor. Installation shall be scheduled in advance with the Government point of contact (POC). Installation shall be performed during normal business hours (0630-1530, Monday through Friday excluding federal holidays) unless approved by the Government POC or his/her designated representative and the Administrative Contracting Officer (ACO). Delivery and installation shall be completed no later than 44 weeks after contract award. See Attachment B for shop layout.The contractor shall coordinate all work activities with the Government Representatives. Delivery and Installation shall be to the following address:

DODAAC: FD2047

Attn.: Alexander Grosskopf (Government Representative) Alexander.grosskopf@us.af.mil 478-222-4071

402 CMXG/MXDEE

455 First Street, Building 140 Robins AFB, GA 31098

FOB Destination

3.9.1 Liquid Nitrogen Bulk Tank Pad. The Liquid Nitrogen bulk tank will need to be on a concrete pad. Contractor shall pour a level concrete foundation in accordance with the size of the nitrogen tank and vaporizer. The foundation must be at least 18” thick and no more than 20’ long and 10’ wide. Any digging will require red zone certifications and procedures. The nitrogen tank will be anchored with anchor bolts in accordance with its size. Existing concrete pad is 8” thick. See Attachment A.

3.9.1.1 Pad Fence. Contractor shall install a safety fence surrounding the entirety of the Nitrogen Tank and the Vaporizer. The Fence shall be located at least 2’ off of any part of the tank or vaporizer. The fence shall be at least 7’ tall and contain lockable entry points (gates) for easy access to refill and operate both the tank and the vaporizer.

3.9.1.2 Piping. Contractor shall install piping that runs from the Liquid Nitrogen Bulk tank and vaporizer to the Nitrogen Backfill tank. The piping shall meet the below criteria:

A. The piping shall be located out of the way inside the shop, 20’ above ground level

B. The piping running from the bulk tank into the shop must be at least 20’ above ground level while outside of the building. Supports for the piping must not impede the loading dock entry road underneath.

C. Piping inside the shop shall include optional connection points for other ovens prior to reaching the backfill tank. These will be not be connected as part of this project.

D. See attachment A for distances. Maximum horizontal travel distance outside of the building is 50’. Maximum horizontal travel distance inside the building is 86’. Vertical travel is 20’ and 20’ down. Total estimated maximum piping distance from vaporizer to backfill tank is 200’.

3.9.2 Contractor Requirements. Contractor shall meet Government POC to ensure minimum disruption of normal operations during installation. Contractor shall have examined the installation site to determine the conditions under which the work is to be performed. Contractor shall coordinate the installation dates with the government POC.

The contractor shall be always escorted by Government personnel during the installation.

See attachment C.

mailto:Alexander.grosskopf@us.af.mil

3.10 Gauges. All gauges in the system (pressure, vacuum, etc) shall meet manufacturer calibration data accuracies in addition to any relevant AMS 2750H calibration requirements.

3.11 Training. After satisfactory completion of acceptance testing of the system, the services of a qualified representative(s), who is proficient in the English language, shall be provided for specialized training to familiarize Government personnel with the equipment and to help ensure reliable performance and maximum service life, during normal usage.

Maintenance and operation training shall be separate and include training on performing system calibrations, adjustments, System Accuracy Tests (SAT’s), Temperature Uniformity Surveys (TUS’s), and any other AMS-required operations. All training shall be performed, between the hours of 0630 and 1515 excluding federal holidays. Training shall be conducted after final acceptance testing and within 30 days of completion of machine installation. One digital copy of the training manuals and mechanical/electronic maintenance manuals, parts listing and drawings shall be provided in Adobe Portable Document (PDF) file format CD-ROM(s). All printed training aids shall be supplied for the course, be in the English language, and become the property of the Government.

4.0 QUALITY ASSURANCE.

4.1 Responsibility for Inspection. The contractor shall be responsible for the performance of all inspection requirements specified herein and in accordance with the attached Quality Assurance Provision (QAP). Except as otherwise specified in the contract or purchase order, the contractor may use his own facility for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to witness any inspections set forth in the purchase description where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements.

4.1.1 Responsibility for Compliance. All items must meet all requirements of sections 3 and 4.

4.2 Classification of Inspections. The inspection requirements specified herein are classified as follows:

a. Contract quality assurance inspection (Origin) (see 4.4).

b. Final Inspection/Acceptance test (Destination) (see 4.5).

4.3 Inspection Conditions. All inspections, tests, and examinations shall be performed in an indoor facility with ambient temperature conditions in the range of 55° F to 100° F and 10% to 95% relative humidity.

4.4 Contract Quality Assurance Inspection (Origin). Contract quality assurance inspection shall be applied at the contractor’s facility prior to being offered for acceptance under the contract. The machine and all peripheral equipment added to the machine shall be fully assembled and perform all functions in accordance with this specification. Quality conformance inspection shall consist of the examination in 4.6 and all tests in 4.7. The machine shall pass the examination, all tests, and contract quality assurance inspection to be acceptable for shipment.

4.5 Final Inspection/Acceptance Test (Destination). Final Inspection and acceptance test shall be performed on the machine to ensure conformance with this purchase description.

The acceptance test shall be performed only after the machine is installed at its final location. The acceptance test shall consist of the examination in 4.6 and all tests in 4.7. The machine shall pass the examination and all tests to be accepted.

4.6 Examination. The equipment shall be examined for design, dimensions, construction, materials, components, electrical equipment and workmanship to determine compliance with the requirements of this specification.

4.7 Tests. Unless otherwise specified within this document, all programs, instruments, materials, material handling equipment, qualified personnel, and tools required to perform and evaluate the tests shall be furnished by the contractor. All measurement tools and indicating devices shall be calibrated in accordance with the attached QAP. If a malfunction occurs during the test, the test shall be restarted each time until all tests in 4.7 are completed without a malfunction. Three (3) consecutive failures without completion of the test may be considered cause for rejection of the system. For the purpose of this test, a “failure” is defined as any equipment malfunction which requires remedial action to restore the system to full operation in accordance with this specification.

4.7.1 Manfacture’s standard tests. The machine shall be tested in accordance with test procedures agreed upon in the ATP referenced in paragraph 3.8.2.

4.7.2 Uniformity Test. An initial temperature uniformity survey shall be performed and tested in full accordance with AMS 2750 (Latest revision). The furnace workload temperature shall not exceed +/- 10 F deviation from any controlled set-point. A survey heating test cycle shall be performed during temperature equilibrium established at three seperatate temperatures determined by customer . The data collection shall conform to the requirements listed in AMS 2750. This test shall be conducted three separate times. These calibration certification reports will be provided digitally for review.

4.7.3 System Accuracy Test (SAT). A system accuracy test shall be performed and tested in full accordance with AMS 2750 (latest revision). The control thermocouple shall not see a deviation from the resident SAT sensor of greater than +/- 3 F. The SAT will be performed at 2000 F. This report shall be provided digitally for review.

4.7.4 Calibration Tests. All calibrated items (such as the PLC, temperature controllers, gauges, any data loggers used in the Section 4.7 tests, etc) shall be calibrated in accordance with AMS and manufacturer calibration requirements. These reports shall be provided digitally for review.

4.7.5 Operational Test. A 2” diameter A2 steel bar stock that is at least 6” long shall be heat treated to maximum hardness. A 2” diameter Inconel 718 bar stock that is at least 6” long shall be treated to maximum hardness. A 2” diameter Stainless Steel 316L bar stock that is at least 6” long shall be stress relieved. All tests will be tested for hardness, conductivity, and tensile strength in accordance with typical part certification procedures found in AMS 2750. A PDF report will be provided on the results of the test parts.

4.7.5.1 Both the nitrogen and the argon quenching systems will be tested to ensure they quench the work zone in accordance with machine operation parameters (including gas flow speed and quench speed).

4.7.5.2 The liquid nitrogen tank and evaporator will be tested to ensure steady supply to refill the furnace “backfill tank” (sometimes referred to as “surge tank”) after a quenching process.

4.7.6 Leak Test. All tanks and seals will be tested for leaks. No leaks shall be present in the system.

4.7.7 Audible Noise Level Test. The equipment shall be tested for compliance with paragraph 3.1.4. “Audible Noise Level”.

INSTALLATION RESPONSIBILITIES

Government Contractor ☐ ☒ a. Provide machine foundation in accordance with the

Manufacturer’s design requirements, including the liquid nitrogen tank, vaporizer, and pipe assenby

☐ ☒ b. Furnish labor and material handling equipment for off-loading and placing item on foundation

☐ ☒ c. Provide and install anchor bolts and nuts ☐ ☒ d. Set and rough level the machine on its foundation ☐ ☒ e. Level and align machine ☐ ☒ f. Connect machine to the provided utilities hook-up ☐ ☒ g. Provide all necessary tools, gages, and instrumentation necessary to perform the required tests ☐ ☒ h. Provide and charge all systems with fluids in accordance with manufacturer's instructions ☐ ☒ i. Material for performance testing at Government facility, including quenching gases ☐ ☒ j. Material for performance testing at Contractor's facility, including quenching gases

GOVERNMENT RESPONSIBILITIES

☒ Provide utilities hook-up within 30 feet of the machine