DLA A-A-59148-1998 WELDING MACHINE ARC AC DC INVERTER CONSTANT CURRENT《恒定电流 交流电 直流电变极器弧形焊接机》.pdf

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1、WCH-POUND A-A-59148 28 January 1998 SUPERSEDING December 18, 1985 December 26, 1984 MIL-W-80024D MIL-W-80027D COMMERCIAL ITEM DESCRIPTION WELDING MACHINE, ARC, AC/DC INVERTER, CONSTANT CURRENT The General Services Administration has authorized the use of this commercial item description for all fede

2、ral agencies. l. SCOPE. This commercial item description (CID) covers constant alternating current /direct current (AC/DC) inverter arc welding machines. The welding machines covered by this CID are intended for mand welding use in operations that require the efficient and permanent joining of simil

3、ar or dissimilar metal pieces. The machines are used to weld various metal alloys in environments such as construction sites, fabrication, and repair shops. 2. CLASSIFICATION. The welding machines shall be of the following sizes. The size to be furnished shall be as specified (see 7.2(b). Size 150 -

4、 150 amperes Size 200 - 200 amperes Size 300 - 300 amperes Size 400 - 400 amperes Size 500 - 500 amperes Beneficial comments, recommendations, additions, deletions, clarifications, etc., and any data which may improve this document should be sent to: Defense Supply Center Richmond, ATTN: DSCR-VBD, 8

5、000 Jefferson Davis Highway, Richmond, VA 23297-5610. AMSC NIA FSC 343 1 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Licensed by Information Handling ServicesA-A-59148 D 9999974 0176894 822 m A-A-591 48 3. SALIENT CHARACTERTSTICS 3.1 General reauirements. The we

6、lding machine shall be new and one of the manufacturers current models capable of operation in accordance with the requirements herein. All parts subject to wear, breakage, or distoxtion shall be accessible for adjustment, replacement, and repair. The machine shall be designed and manufactured in ac

7、cordance with the American National Standards Institute/National Electrical Manufacturers Association (ANSI/NEMA) EW l. 3.2 Commnents. The welding machine shall include, as a minimum, the following components: 3 -2.1 Enclosure. The welding machine enclosure shall be fan cooled and manufctured to wit

8、hstand the rough handling nodly encountered in construction areas. Ventilation holes shall be covered with screens or small enough to prevent the entry of debris. The enclosure shall be fitted with handles, wheels, or lifting eyes as specified (see 7.2(c). Electrical connection points and machine co

9、ntrols shall be clearly labeled. 3.2.2 Power source. The welding machine power source shall be the inverter type capable of delivering the required AC or DC current output and shall maintain constant current during the welding process. The power source shall have thermal overload protection and powe

10、r factor correction. Unless otherwise specified (see 7.2(d), power source duty cycle shall be not less than 40 percent for the size specified. 3.2.3 High-fiwuencv generator. When specified (see 7.2(e), the welding machine shall be equipped with a high-fiequency (HF) generator for DC arc initiation a

11、nd AC arc stabilization. 3.2.4 Controls. The welding machine controls shall, as a minimum, consist of an “on/off switch, welding current control, and an “ACDC” switch. The following controls shall be provided as specified (see 7.20): a. Remote foot current control and arc initiation. b. DC electrode

12、 positive/negative switch. c. Adjustable current ramping control for blast prevention and crater filling. d. Adjustable wave balance for AC weldmg. 3.2.5 Gas shielding: and coolinn water. When specified (see 7.2(g), the welding machine shall provide a means to dispense and adjust the flow of shieldi

13、ng gas and cooling water. When specified (see 7.2), the shielding gas and coolmg water controls and metering components shall be contained on the welding machine. The following features shall be provided as specified (see 7.2(i): a. Gas and water fixed preflow duration and adjustable postflow durati

14、on. b. Heat exchanger or refrigeration unit for cooling water. 3.2.6 Electrical svstem. The welding machine shall operate fiom a 230/460-volt, 3-phase, 60-hertz circuit. Unless otherwise specified (see 7.2(j), the welding machine shall be initially wired for 2 Licensed by Information Handling Servic

15、esA-A-59148 230-volt operation. 3.2.7 Optional components. Optional components shall be furnished as specified (see 7.2(k). 3.3 Performance. Unless otherwise specified (see 7.2(1), the welding machine shall meet the performance requirements of IS0 1708 when tested in accordance with sections 5.3 thr

16、ough 5.3.4. 3.4 Machine dimensions and weight. If required, the maximum machine dimensions (length, width, and height) and machine weight shall not exceed the restrictions specified (see 7.2(m). 3.5 Safetv and health requirements. The manufacturer shall ensure that the welding machine and all equipm

17、ent and accessories used on the machine shall be in compliance with American Welding Society (ANSVAWS) 249.1 and Occupational Safety and Health Administration (OSHA) 29 CFR PART 1910. If a conflict arises between the ANSVAWS and OSHA standards, the OSHA standards shall apply. Covers, guards, or othe

18、r safety devices shall be provided for all parts of the system that present safety hazards. The manufacturer shall ensure that the machine is intended for manual use. A machine having a power source with an open circuit voltage greater than those listed in NEMA EW 1 section 5.3.2 shall not be provid

19、ed as a manual system. 3.6 System of units. The US. Customary System of Units (US) or the International System of Units (SI) shall be used to graduate measuring and indicating devices. When only one system of graduation is acceptable, the particular graduation required shall be as specified (see 7.2

20、(n). Regardless of the measurement system used, all measuring and indicating devices on the machine shall be graduated in the same system. When specified (see 7.2(0), measuring and indicating devices shall be graduated in both the US and SI system of measurements. 3.7 Namedate. A nameplate shall be

21、securely attached to the machine. Unless otherwise specified (see 7.2(p), the nameplate shall contain the following information: a. b. d. e. f. 5 h. C. 1. Manufacturers name. Machine model designation. Power input (volts, total amperes, phase, frequency). Rated load volts and amperes. Maximum open c

22、ircuit voltage. Duty cycle at rated load. Contract number or order number. National stock number or plant equipment code. Date of manufacture. 4. REGULATORY REQUIREMENTS 4.1 Recovered materials. The offeror/contractor is encouraged to use recovered materials to the maximum extent practicable, in acc

23、ordance with paragraph 23.403 of the Federal Acquisition Regulation (FAR). 3 Licensed by Information Handling ServicesA-A-59148 m 9999974 O17b89b bT5 m A-A-59 148 4.2 Environmental Drotection. The item shall meet all applicable Environmental Protection Agency PA) restrictions in effect on the date o

24、f the contract. These regulations apply to the emission of materials hazardous to the environment or the users health and shall be adhered to during the mandacturing, service, transportation, storage, and operatioduse of the item. 5. QUALITY ASSURANCE PROVISIONS 5.1 Product conformance. The products

25、 shall meet the salient characteristics of this comercial item description; conform to the manufacturers own drawings, specifications, standards, and quality assurance practices; and be the same system offered for sale in the commercial market. The Government reserves the right to require proof of s

26、uch conformance. 5.2 Inspection. The arc welding machine shall be inspected to determine compliance with all requirements specified in this CID. 5.3 Testing. Unless otherwise specified (see 7.2(q), the weldmg machine shall be tested in accordance with sections 5.3.1 through 5.3.4. 5.3.1 Test setup a

27、nd conditions. Unless otherwise specified (see 7.2(r), the manufkcturer shall be responsible for supplying all tooling and material) and shall conduct all tests required by the Government. The mandacturer shall provide test instruments and equipment with calibration traceable to National Institute o

28、f Standards and Technology (NIST) and shall provide certification of calibration as specified (see 7.2(s). 5.3.2 Owrational test. The arc welding machine shall be operated in accordance with the manufxturers standard operating procedures. Proper operation of all controls and features shall be verifi

29、ed during the test period. 5.3.3 Performance tests. The performance tests shall be conducted in accordance with the following sections of NEMA EW 1 : a. High-potential test - section 7 of NEMA EW l. b. Drop test - section 3.8.2 of NEMA EW l. c. Temperature rise test - section 6 of NEMA EW l. d. High

30、-fkquency generator test - section 1 O of NEMA EW l. e. Output test - section 5 of NEMA EW l. 5.3.4 btional tests. Optional tests shall be conducted as specified (see 7.2(t). 5.4 Accmtance. Unless otherwise specified (see 7.2(u), pre- and final acceptance tests shall be conducted at the manufacturer

31、s site. Failure of the machine to meet the tests called out in section 5.3 through 5.3.4 shall be cause for rejection. 4 Licensed by Information Handling ServicesA-A-5 9 148 6. PACKAGING 6.1 Packaging requirements. Preservation, packing, and marking shall be as specified (7.2(v). 7. NOTES 7.1 Source

32、s of documents. 7. l. 1 Government documents. Copies of Federal documents may be obtained fiom the Superintendent of Documents, U.S. Government Printing Offce, Washington, DC 20402. 7.1.2 Industry standards. Copies of industry standards referenced in this CID may be obtained fiom the following addre

33、sses: American National Standards Institute (ANSI) ANSYAWS 249.1 Safety in Welding, Cutting, and Allied Processes Applications for copies should be sent to: American National Standards Institute, 1 1 West 42nd Street, New York, NY 10036. National Electrical Manufacturers Association (NEMA) NEMAEW 1

34、Electric Arc Welding Power Sources Applications for copies should be sent to: National Electrical Manufacturers Association, 1300 North 17th Street, Suite 1847, Rosslyn, VA 22209. Occupational Safety and Health Association (OSHA) OSHA 1910 Occupational Safety and Health Standards for General Industr

35、y (29 CFR Part 1910) Applications for copies should be sent to: U.S. Department of Labor, 200 Constitution Avenue NW, Room 423, Washington, DC 202 10. 7.2 Ordering; data. Acquisition documents must specify the following: a. Title, number, and date of this document. b. Type and size of arc welding sy

36、stem required (see 2.1). c. Enclosure lifting features - handles, wheels, lifting eyes, etc., as specified (see 3.2.1). d. Duty cycle, if different (see 3.2.2). 5 Licensed by Information Handling ServicesA-A-59 148 e. High-frequency generator, if required (see 3.2.3). f. Optional control features, a

37、s specified (see 3.2.4). g. Shielding gas and cooling water, if required (see 3.2.5). h. Shielding gas and cooling water controls location, if required (see 3.2.5). i. Shielding gas and cooling water optional features, as specified (see 3.2.5). j. Electrical system, if different (see 3.2.6). k. Opti

38、onal components, as specified (see 3.2.7). 1. Performance , if different (see 3.3). m. Machine dimensions and weight, as specified (see 3.4). n. System of units required (see 3.6). o. Dual system of units, if required (see 3.6). p. Nameplate, if different (see 3.7). q. Testing, if different (see 5.3

39、). r. Test setup - tooling and material responsibility, if different (see 5.3.1). s. Calibration certification, if required (see 5.3.1). t. Optional tests, as specified (see 5.3.4). u. Acceptance, if different (see 5.4). v. Packaging requirements (see 6.1). 7.3 Part identification number (PIN). The

40、following part identification numbering procedure is for government purposes and does not constitute a requirement for the contractor. AA59148 - XXX “r Size: 150 - Size 150 200 - size 200 300 - Size 300 400 - Size 400 500 - Size 500 CID number MILITARY INTERESTS: custodians Air Force - 99 Army-AL Navy - SH PREPARING ACTIVITY DLA - GS (Project 3431-0230) 6 Licensed by Information Handling Services