1、 ENGINEERING STANDARDS Material Specification SUPERCEDED EDS-M-5212 High Impact Strength Polyoxymethylene Homopolymer This standard may be applied only for current projects. It is Superceded for all future projects and replaced by GMW22P-POM-C2P1. !7 E(*7Y4+D,) Gl+E(*+l Note: 8 E:48t G8 =97 FF7 957%
2、L+ , FG P-P Program .Bd# GMW22P-POM-C2P1) $4=F7 957F$ . Copyright 2012 General Motors Company All Rights Reserved April 2012 Originating Department: GM Korea Engineering Standards Page 1 of 5 Version : 5 1 Scope 1.1 Material Description. This specification defines general requirements for raw materi
3、als of high impact strength polyoxymethylene homopolymer applied to interior and exterior parts of a vehicle. 1.2 Symbols. Material indication: POM-HIH 7 E(*7Y4+D,) Gl+E(*+l 88*7 $4F 8-L958 7 ?* 9IF$ . 1.2 8: dGl . 8:Ed : POM-HIH 2e8 73LF 88* . 2 4) E:4 / :0 : C-H +d%P 9I8 6# F 48 07 38%P E:48x 957F
4、$ . 2.1 17 E:4 / . ASTM D256 ASTM D638 ASTM D648 ASTM D785 ASTM D790 ASTM D1238 ASTM D1505 ISO 3146 2.2 GM E:4 / . EDS-M-0102 GMW3059 GMW3116 2.3 dA E:4 / . TMC003 Material Safety Data Sheet guidance documents GM KOREA ENGINEERING STANDARDS EDS-M-5212 Copyright 2012 General Motors Company All Rights
5、 Reserved April 2012 Page 2 of 5 Version : 5 3 Requirements 3.1 Mechanical Properties. 3 7 1F 3.1 d95 ,p2e . Table 1: Mechanical Properties / E 1: d95 ,p2e Properties / ,p2e Type 1 Rockwell hardness / )A 8$ $ ASTM D785 R Scale 115 Tensile strength (kg/cm2) / 88I$ (kg/cm2) ASTM D638 Test piece (133 m
6、m) / 4G D (133 mm) Test speed (50 mm/min) / 4G 2$ (50 mm/min) 550 Elongation (%) / 48 (%) ASTM D638 Test piece (133 mm) / 4G D (133 mm) Test speed (50 mm/min) / 4G 2$ (50 mm/min) 60 Flexural strength (kg/cm2) / I$ (kg/cm2) ASTM D790 Test piece (12712.76.4 mm) / 4G D (12712.76.4 mm) Test speed (28 mm
7、/min) / 4G 2$ (28 mm/min) 700 Flexural modulus (kg/cm2) / A2e* (kg/cm2) ASTM D790 Test piece (12712.76.4 mm) / 4G D (12712.76.4 mm) Test speed (28 mm/min) / 4G 2$ (28 mm/min) 23,000 Impact strength, IZOD (kg cm/cm) / IZOD I$ (kg cm/cm) ASTM D256 Test piece (63.512.73.2 mm) / 4G D (63.512.73.2 mm). R
8、oom temperature / 17 -30 E 10 8 3.2 Thermal Properties. 3.2 7(95 ,p2e . Table 2: Thermal Properties / E 2: 7(95 ,p2e Properties / ,p2e Type 1 Melting point ( E ) / 78i9D ( E ) ISO 3146 175 180 Heat deflection temperature ( E ) / 7(-GI7$ ( E ) ASTM D648 Test piece (12712.76.4mm) / 4G D (12712.76.4mm)
9、 18.6 kg/cm2 95 GM KOREA ENGINEERING STANDARDS EDS-M-5212 Copyright 2012 General Motors Company All Rights Reserved April 2012 Page 3 of 5 Version : 5 3.3 General Properties. 3.3 8-L95 ,p2e . Table 3: General Properties / E 3: 8-L95 ,p2e Properties / ,p2e Type 1 Density (g/cm3) / -4$ (g/cm3) ASTM D1
10、505 1.390.02 Note: All the mechanical, thermal and general property values above indicate minimum values except having the specified ranges. / :0 : 1d ,p2e F+ :E C-H ,p2eF -88* :9IF: 68t 7 +% 2F8x !A! . 3.4 Test Piece and Test. 3.4.1 Test Piece. Test pieces shall be prepared with injection molding.
11、Unless otherwise specified in the requirements of paragraphs 3.1 through 3.3, they shall be conditioned at 23 E 5K and a relative humidity of 50 % for 24 hours or more. 3.4.2 Test. Tests shall be performed at 23 E 5K and a relative humidity of 50 %. 4 Manufacturing Process Not applicable. 5 Rules an
12、d Regulations 5.1 Legal Regulations. All materials must satisfy applicable laws, rules, regulations and recommendations valid in the country of usage. 5.2 Language. In the event of conflict between the Korean and English language, the Korean language shall take precedence. 5.3 Inspection and Rejecti
13、on. Samples of components or materials released to a GM material specification shall be tested for conformity with the requirements of this material specification and approved by the responsible Engineering department prior to commencement of delivery of bulk supplies. A new approval must be receive
14、d for any changes, e.g., properties, manufacturing process, location of manufacture, etc. If not otherwise agreed, all testing and documentation normally required for initial release must be completed. It is the responsibility of the supplier to inform the customer in a timely manner, without solici
15、tation, and to include documentation of all modifications of materials and/or processes and to apply for a new release. 3.4 4G D -C 4G 3.4.1 4G D . 12eGI8p) 9P8%L+ 3.1 3.3 F8 7 1F72P C-F 6=8 68p+ 23 E 5K, 50 % 1$43$ F72P 24 48 81 4G D8x 98=* F$ . 3.4.2 4G . 4G 8t 23 E 5K, 50 % 1$4 3$ F72P 44F$ . 4 9
16、P9 )9I18 775 9 F$-1F 68 . 5 ?0 9I 5.1 -*1 9I . +& 8*# F$- 472P 170 4) , 8TGF 957 4#F :4- , ? , 9I -C 1F8x +94P6 F$ . 5.2 66 . F67t 7568 18 88x 7 , F6* 72T8p) F$ . 5.3 1 -C -L)X . GM 8-LE:47 8F 9P%P .E8! 8*8 4G D8t ., 8-LE:47 9I%P 4G 8x 7 98x +94P6 F+ , 61 )= 987 :04 .2P8 388x -O6x6 F$ . &H88 , d# ,
17、22e , 9P9 )9I ,* /D# 21: &%0 4)%P 6&F -8($ -P2%T 7 , 1)7 388x -O6x6 F$ . $* F84 6# F , 8-L958p) 4 4=8x F6 F$ . GM KOREA ENGINEERING STANDARDS EDS-M-5212 Copyright 2012 General Motors Company All Rights Reserved April 2012 Page 4 of 5 Version : 5 If not otherwise agreed, all release tests shall be re
18、peated and documented by the supplier prior to commencement of delivery of non-conforming bulk supplies. In individual cases, a shorter test can be agreed to between the responsible Engineering department and the supplier. 5.4 Initial Source Approval. No shipments shall be made by any supplier until
19、 representative initial production samples have been approved by the appropriate Materials Engineering department(s) as meeting the requirements of this specification. 5.5 Material Safety Data Sheets/Safety Data Sheets (MSDS/SDS). For new product submissions, or when a change in chemical composition
20、 of an existing product has occurred, a complete copy of the Material Safety Data Sheet/Safety Data Sheet must be submitted in compliance with the Globally Harmonized System of Classification and Labeling of Chemicals (GHS) requirements or other country-specific MSDS/SDS requirements. In addition, p
21、roduct MSDS/SDS submissions must be in compliance with specific country General Motors TMC003 Material Safety Data Sheet/Safety Data Sheet guidance documents where available. 5.6 All materials supplied to this standard must comply with the requirements of GMW3059, Restricted and Reportable Substance
22、s for Parts. 6 Approved Sources Engineering qualifications of an approved source are required for this standard. Only sources listed in the GM Materials File under this standard number have been qualified by Engineering as meeting the requirements of this standard. For other GM locations, the respon
23、sible Engineering group should be contacted to obtain the approved source in that individual country. 6.1 Approved Raw Materials. -$8 GE84 6# F , )=8# 38%L: 68t 9PE8 61 )= 987 +& F$- 4G 8x -L.) 3LFF 0* ,l2PGF6 F$ . 8. 77 86 :04 .2P7t )=888 F87 8F $%P : 4G 8x 44F 3L 8$ . 5.4 FF2P# 6| %P$ . 5.5 ,p:6|9
24、8.(8* / 6|98.(8* (MSDS/SDS). 49PE8 )= D# d97 )=%L# 9PE ! GF,p: 92e8 -%P 7 , GF ,p: .* y E47 4F 2l 9G 43B (GHS) D# 5 :7!- ,p:6|98.(8* / 6|98.(8* 7 1F8x +9F# ,p:6|98.(8* / 6|98.(8* 9PF6+ F$ . 4958p) 9PE8 ,p:6|98.(8* / 6|98.(8*# GM8 ,p:6|98.(8* / 6|98.(8*7 4F :?8 TMC0038 7 1F8x :43LF6+ F$ . 5.6 ., E:47
25、 9P4%P +& 8:&8t GMW3059 (8TF,p: 179P )8 9P* &d(6 F$ . 6 38 6= 8 E:48t 38%P 6=7 $4F d3T95 :8x 7F$ . 8 E:47 8F d3T958 :8 7x*%P GM 88 +2l7 !7(%P 6=+8 8 E:48 7 1F8x 94A$ . $* :7!7 88?F GM 8 7 , F$- 4-) 38%P 6= 9I.(* 83LFd 88F2P# F$- :04 .2P7t GE8F6 F$ . 6.1 38 88* . Division / . Approved Suppliers / 38
26、6= Approved Raw Materials / 38 88* Remark / /x Type 1 DuPont Delrin 500T 6.2 Approval and quality assurance procedure. All raw materials shall be approved and regularly inspected for its quality prior to and during mass production delivery according to approval and quality assurance procedure for ch
27、emical raw materials (Spec. No. EDS-M-0102). 6.2 38 -C E:.(: 9) 9P9I / -PF%L6$ . Issue / P9I8)Y Publication Date / 38 88 Description (Organization) / 9PP9I76 (:04.2P ) 5 APR 2012 Apply new Engineering Standard Template and change the referenced test standards. Superceded (Polymer / Organic Material Lab Team) / 4 d3TE:4 64 957 -C 957 4G - - . F9I957 =* (G)8*4G D4 )
