1、 ENGINEERING STANDARDS General Specification LIMITED USE EDS-T-7019 Corrosion Protective Coatings Phosphate No Replacement. .4-:7 $8+ 4G - (8170Fp* &8Td$8 &7X8 ) Note: 8 E:48t G8 =97 FF7 957%L+ , FG P-P Program 72P# 957%L: 6#$ . Copyright 2011 General Motors Company All Rights Reserved July 2011 Ori
2、ginating Department: GM Korea Engineering Standards Page 1 of 4 Version : 4 1 Introduction Note: Nothing in this standard supersedes applicable laws and regulations. Note: In the event of conflict between the Korean and English language, the Korean language shall take precedence. 1.1 Purpose. This s
3、pecification covers basic requirements for a black corrosion protective coating which is protective coating which is produced in a process consisting of zinc phosphate treatment, chromic acid rinse or seal, organic coating, oven bake, water and oil emulsion post treatment and air dry. 1.1.1 This coa
4、ting is especially suitable for bolts, clips and other small ferrous parts where above normal levels of corrosion protection, freedom from hydrogen embrittlement and decorative black color are desired. 1.1.2 Parts that are not suitable for barrel processing may be racked but must be processed throug
5、h the same black organic coating employed in the barrel process. 1.2 Scope. The organic coating is applied by barrel processing or racking over properly zinc phosphated small parts. Parts from either process are oven cured at 200 E for a minimum of 18 minutes. Immediately following the cure, the par
6、ts are immersed in a corporation approved protective oil compound in concentrations, temperatures and immersion times specified by the approved chemical manufacturer. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specification
7、s. None 2.2 GM Standards/Specifications. EDS-T-7005 EDS-T-7143 EDS-T-7780 GMW3059 1 P7 :0 : ., E:48 6&F !7$ :4-8! 9I8x $4=F 3L 6$ . :0 : F67t 7568 18 88x 7 , F6* 72T8p) F$ . 1.1 +95 . ., E:48t .4 -:7 H 1 D8C7 $4F 8-L95 4G 8p)2P 81 -6x7$ Fp* , A ) 1 =* , $8 , 2. 3L2l D# 7X8=* , ,* 9) 8*6:# )9I :E $8
8、.7 17%L# D8C7 $4F7 9IF 8$ . 1.1.1 ., $88t CH .0C , A* , D# ,78 2GI 07 38%P E:48x 957F$ . 2.1 17 E:4 / . None 2.2 GM E:4 / . EDS-T-7005 EDS-T-7143 EDS-T-7780 GMW3059 GM KOREA ENGINEERING STANDARDS EDS-T-7019 Copyright 2011 General Motors Company All Rights Reserved July 2011 Page 2 of 4 Version : 4 2
9、.3 Additional References. None 3 Test Preparation and Evaluation 3.1 Resources. 3.1.1 Calibration. The test facilities and equipment shall be in good working order and shall have a valid calibration label. 3.1.2 Alternatives. Alternative test facilities and equipment may also be used. However, all m
10、easuring variables as specified in this standard shall be determined correctly with respect to their physical definition. 3.2 Conditions. 3.2.1 Test Conditions. Deviations from the requirements of this standard shall have been agreed upon. Such requirements shall be specified on component drawings,
11、test certificates, reports, etc. 3.3 Safety. This standard may involve hazardous materials, operations, and equipment. This standard does not propose to address all the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and
12、health practices and determine the applicability of regulatory limitations prior to use. 3.4 Documentation. Samples of components or material released to this standard shall be tested for conformity with the requirements of this standard and approved by the responsible GM Department prior to the sta
13、rt of delivery of production level components or materials. Any change to the component or material, e.g., design, function, properties, manufacturing process and/or location of manufacture requires a new release of the product. It is the sole responsibility of the supplier to provide the customer,
14、unsolicited, with documentation of any change or modification to the product/process, and to apply for a new release. If not otherwise agreed to, the entire verification test shall be repeated and documented by the supplier prior to start of delivery of the modified or changed product. In some cases
15、, a shorter test can be agreed to between the responsible GM department and the supplier. 4 Requirements and Procedure 4.1 Appearance. Coating shall have a uniform, dense black appearance and shall be free from tears, sags or other surface mottling. 2.3 dA E:4 / . None 3 4G :4/x -C D4 3.1 4G 88 . 3.
16、1.1 9I . 4G 2X/x7t 8/x# 9P 2e#8x -PHLF 8TGF 9I Fx:8x J66 F$ . 3.1.2 $4= 3L$ . $4= 4G 42X0 8/x4 17%T 3L 8$ . ,) ! ., E:47 +d%P +& ?U9I -3L&8t , ,p*95 9I87 8 9IGF 9I%L66 F$ . 3.2 8-L 9 . 3.2.1 4G 9 . .,E:48p).Bd-6!#7 1F8t $-188 F8F6 F+ , 4)$+ , 4G 2e952P , .(2P&%7$+d%L66F$ . 3.3 6|987 $4F 7 9 . ., E:4
17、8t 88G ,p: , 86 , 8/x &%8x E FF 3L 8$ . ., E:48t 87 $4F 170 4)%P +& 6|98 ,l9P8 F8x 9P4F:# 6#$ . &d(2P 17 987 95FF 6|980 I 1B* 9DF , -18 9PF 728 957 7 .* 9IF# 8t ., E:4 1788 =y8 1F8$ . 3.4 : 2P* 9P) . 8 E:47 8F 9P%P .E8! 8*8 4G D8t ., E:47 9I%P 4G 8x 7 98x +94P6 F+ , 61 )= 987 GM :04 .2P8 388x -O6x6
18、F$ . .E8! 8*7 862P &H88 , d# , 22e , 9P9 )9I ,* /D# 21:7t 4)%P 6&F -8($ -P2%T 7 49PE 4* 7F$ . )=8# +88 7= 7 .7t 14 68 9PE /21 )9I 18 - Gm8t P97 4F 2P* 9P)F6 F+ 4 9PE 4 4=8x F6 F$ . $* F84 6# F , )=8# P9 Gm8t -%P 9PE8 )= 987 98= : 4G 8x -L.) 3LFF 0* ,l2PGF6 F$ . 8. 77 86 GM :04 .2P7t )=888 F87 8F $%P
19、 : 4G 8x 44F 3L 8$ . 4 7 9 -C 4G 9%P E+8x 8-,F$ . (7=F 3L 8# .88* +F+ 8# $+7 9I8 %L66 F$ . 4.3.3 703L .,h 4G :F 4 6!1 (Female Threads) .88# )=87t 178 88 GE87 8F 2( %T 3L 88p+ 8 7 6!1 .88# 9590 887 $4F7 -G4 666 F+ , 21 )9I :E 3F8* A* (Spring Clip)8 ?. .888 7 9PE7x2e G -:! 2:7t8 9E=)Y8 94F%L62P# 6| %P
20、$ . 4.5 9E=)Y . 4.5.1 ., 168p) $8%P +& .E8t $8+8 9E=)Y8x D4Fd 88F !32e 4G G 9E=)Y 4G 8x :FF6 F$ . 4.5.2 $8+8t !32e 4G 9648 G .E8 D# , 878 E+ -G4 862P# 6|%L+ !32e 4G G 10 . G7 9E=)Y 4G 8x :FF$ . (X 88 :E8 = .88).Bd 3 mm 8! -I* F7 ). 4.6 4G - . 4.6.1 703L .,h 4G : EDS-T-7143. GM KOREA ENGINEERING STAN
21、DARDS EDS-T-7019 Copyright 2011 General Motors Company All Rights Reserved July 2011 Page 4 of 4 Version : 4 4.6.2 Humidity test shall be conducted according to EDS-T-7005 (100% RH at 38). 4.6.3 Tape adhesion test shall be conducted according to EDS-T-7780-B. 5 Provisions for Shipping 6 Notes 6.1 Gl
22、ossary. Not applicable. 6.2 Acronyms, Abbreviations, and Symbols. Not applicable. 7 Additional Paragraphs 7.1 All parts or systems supplied to this standard must comply with the requirements of GMW3059, Restricted and Reportable Substances for Parts. 8 Coding System This standard shall be referenced
23、 in other documents, drawings, etc., as follows: EDS-T-7019 9 Release and Revisions This standard was originated in July 1991. It was first approved by Engineering Standard Committee in July 1991. It was first published in July 1991. 4.6.2 !32e 4G : EDS-T-7005 (100% RH: 38 E ). 4.6.3 9E=)Y 4G : EDS-
24、T-7780-B. 5 2T957 $4F 9F 6 768 9I8 6.1 98,l 76 . F$-1F 68 . 6.2 66 -C dGl . F$-1F 68 . 7 .4 1F 7.1 ., E:47 9P4%P +& .E&0 43B8t GMW3059 (8TF,p: 179P )8 9P* &d(6 F$ . 8 Ed - $* ,l2P! $+ &%72P ., E:48 87%T &# $80 M8 EdF$ . EDS-T-7019 9 9P9I -C P9I 8)Y ., E:48t 1991 “x 7 87 E:4 -Gl4 .7 %L6 , d3TE:41,h7
25、8F 1991“x 787 38%L6$ . ., E:48t 1991“x 787 ) 9P9I / -PF%L6$ . Issue / P9I8)Y Publication Date / 38 88 Description (Organization) / 9PP9I76 (:04.2P ) 4 JUL 2011 Apply new Engineering Standard Template. Limited use with no replacement (Polymer / Organic Material Lab Team) / 4 d3TE:4 64 957 . F9I957 ($4=E:4 68 ) =* (G)8*4G D4 )
