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1、E 9006379 0002745 30T DRAWING COMPOUNDS-WATER DILUTABLE, FOR ALUMINUM SHEET 9981873 1 SCOPE. This specification details the requirements of water dilutable drawing compounds that must be compatible with current production processes and paint systems. These compounds provide additional lubricity to a
2、id in aluminum sheet metal forming operations and are designed to be used at a wet film thickness not exceed 0.02 mm at the time of application. sets after phosphating, and results shall be comparable to the control panels. 3.3.3.1 Appearance. Immediately after the final rinse and be- fore drying, t
3、he phosphated surfaces shall exhibit a continuous water fihn. 2 REFERENCED STANDARDS. GM3623M GM9613P GM9733P GM9531P GM9615P 9981833 GM961 1P GM9617P 3 REQUIREMENTS. Specific material requirements and appropriate test methods are listed under properties. These requirements apply for aluminum sheet
4、metal substrates &. 3.4.3.2 Crystal Size (GM9613P). Crystal size shall be small to medium when viewed under 250X magnification. 3.4.3.3 Coating Mass (GM9733P). Substrate Coating Mass (g/m3 I (mdft2) Aluminum I 1.1 - 2.2 I 100-200 3.1 PHYSICAL PROPERTIES. 3.3.4 ELPO Primer Compatibility (GM9532P). A
5、rating of 6 orbetteronascaIeofOto10,with10beingthebest,isrequired. 3.1.1 Chemical Requirements. No silicone or Ianolin com- pound of any kind is allowed in the material. 3.4 STACKED METAL REQUIREMENTS. The material must protect the sheet metal from staining or corrosion for 24 h when stored in a sta
6、cked condition. 3.1.2 The concentration of the material for each test require- ment will be set prior to the material evaluation. 3.1.3 The concentration range for production use wilI be set at the time of approval. 3.5 EASY DILUTION AND NORMAL AGITATION. This material must not require special mixin
7、g equipment and no more than moderate agitation must be required to achieve a uni- form mixture. 3.2 PERFORMANCE REQUIREMENTS. 3.2.1 Corrosion Resistance (GM9617P). Aluminum substrates coated with the material over a GM approved mill oil (998 1833) must not exhibit rust or staining under normal ship
8、ping, han- dling or storage conditions which would impair processing the sheet. 3.6 DIE OR ROLL COATER BUILD UP. The material must not require excessive effort to remove from dies or roll coaters after a weekend. 3.7 STORAGE STABILITY. The material must meet all of the requirements of the specificat
9、ion after being stored under nor- mal conditions for a period of 90 days. This period commences upon receipt of the material 3.2.1.1 The material tested per GM9617P must not exhibit 3.8 DRAWABILITY. The material must perform satisfactorily more corrosion or staining than the control panels after 1.
10、5 and as a drawing aid in the metal fabrication plant tryout. This spec- 10 cycles, with no more than slight stain or corrosion being ac- ification is designed to test materials which aid in light to heavy ceptable after 10 cycles. duty drawing of sheet metal. 3.3 PROCESS REQUIREMENTS. 3.3.1 Compati
11、bility with Structural Adhesive (GM3623M). The material must meet the requirements of GM3623M or lim- its set by the design engineer. 3.9 COEFFICIENT OF FRICTION (REQUIRED FOR ENGI- NEERING INFORMATION). Report the rating on the draw bead simulator test. State the method and describe the equip- ment
12、 used to determine the rating. 3.3.2 Welding Requirement (GM9615P). The material must perform comparable to or better than the currently approved ref- erence (control) 9981833. 3.4.3.4 Plant Requirements. After passing the requirements above of tbis specification this material(s) must perform satis-
13、 factorily in the intended application as demonstmted by a plant tryout. 3.3.3 Compatibility with Phosphate System (GM9611P). Pan- els prepare for this specification shal.l be treated in a GM ap proved spray/dip zinc phosphate process. The compound treated panels shall exhibit a uniform, pattern fre
14、e. phosphate coating comparable to the control panels (cold rolled steel) which have not been processed through any preclean system. The phos- phate coating should be of acceptable coating weight and crys- tal size. In addition, photomicrographs shall be taken of both 3.5 PROCESS REQUIREMENTS. 3.5.1
15、 Functional Requirements. The material must perform satisfactorily in the specified production application. Failure to do so shall constitute reason for rejection regardless of com- pliance with the other requirements of this specification. 3.5.2 Quality Control Requirements. In addition to meeting
16、all of the above detailed requirements, all subsequent lots of an ap- JULY 1992 PAGE 1 9981873 Copyright General Motors North America Provided by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/23/2008 20:19:23 MDTNo reproduction or networking permitte
17、d without license from IHS -,-,- - 9006379 0002746 246 = GENERAL MOTORS ENGINEERING STANDARDS Materials and Processes - Paint DRAWING COMPOUNDS-WATER DILUTABLE, FOR ALUMINUM SHEET 9981873 proved compound will be required to meet the standards of composition established in the originally approved lot
18、. Refer- ence original infrared spectra and gas chromatography. 4 SOURCE SHIPMENT RESPONSIBILITY. It will be the responsibility of the supplier to insure that the material is not exposed to temperatures during shipment which would cause the material to fail to meet any of the requirements of this sp
19、ecification. 5 WASTE TREATMENT. The material must be compatible with existing waste treatment processes so that total removal can be achieved. The supplier of the product will be responsible to make it known to the applicator of this product. 6 INITIAL SOURCE APPROVAL. No shipment shall be made by a
20、ny supplier until representative initial production samples have been approved by engineering as meeting the requirements of this specification. 6.1 Completed copies of the GM Material Safety Data Sheet and Critical Material Register (available from the engineering department or laboratory), or equi
21、valent, must be submitted with any new submissions or where a composition changes has occurred. 7 INSPECTION AND REJECTION. AU shipments of material or parts under contract or purchase order manufactured to this specification shall be equivalent in every respect to the initial samples approved by en
22、gineering. There shall be no changes in either formulation or manufacturing processes permitted without prior notification and approval by engineering. Lack of notification by the supplier constitutes grounds for rejection of any shipment. While samples may be taken from incoming shipments and check
23、ed for conformance to this specification, the supplier shall accept the responsibility for incoming shipments meeting this specification without dependence upon purchaser s inspection. 8 APPROVED SOURCES. Engineering qualification of an approved source is required for this specification. Only source
24、s listed in the GM Corporate Materials File under this specification number have been qualified by engineering as meeting the requirements of this specification. Sources are available through the on-line MATSPC System. 9 GENERAL INFORMATION. This specification was originated by Fisher Body in April
25、1976. The latest revisions include: Rev Date Description Div B 8/77 Adhesive requirements revised FB C 6/92 Complete revision CPC 9981873 PAGE 2 JULY 1992 Copyright General Motors North America Provided by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/23/2008 20:19:23 MDTNo reproduction or networking permitted without license from IHS -,-,-