1、GM DAEWOO Auto & Technology EDS Engineering, GM DAEWOO Auto & Technology Standards EXTRUSION MOLDING 10% TALC FILLED POLYPROPYLENE EDS-M-4239 ISSUED DATE: 1997. 09. 26 REVISED DATE: 2007. 12. 17 VERSION: 5 EDS-M-4239EXTRUSION MOLDING 10% TALC FILLED POLYPROPYLENE PAGE: 1/3 ISSUED DATE: 1997. 09. 26
2、REVISED DATE: 2007. 12. 17 VERSION: 5 GM DAEWOO Auto & Technology 1. PURPOSE This specification defines general requirements for raw materials of extrusion molding 10% talc filled polypropylene applied to interior and exterior parts of a vehicle. 2. SCOPE This specification shall be applied to raw m
3、aterials of extrusion molding 10% talc filled polypropylene used in all passenger cars by GM DAEWOO Auto & Technology Company (hereinafter referred to as the “GMDAT“). 3. MATERIAL INDICATION Material indication: PP-T10 Detailed contents shall conform to the indication method of synthetic resin mater
4、ials for vehicles. (Spec. No: GMW3116) 4. APPLICATION Talc filled raw materials which have excellent heat resistance, dimensional stability and impact resistance and especially suitable for extrusion molding. 5. REQUIREMENTS 5.1. Mechanical properties Type 1 Rockwell hardness EDS-T-7517 R Scale - Te
5、nsile strength (kg/cm2) EDS-T-7511 Test piece (133mm) Test speed (5mm/min) 250 Elongation (%) EDS-T-7511 Test piece (133mm) Test speed (5mm/min) 500 Flexural strength (kg/cm2) EDS-T-7518 Test piece (12712.76.4mm) Test speed (2.8mm/min) 300 Flexural modulus (kg/cm2) EDS-T-7510 Test piece (12712.76.4m
6、m) Test speed (2.8mm/min) 15,000 EDS-M-4239EXTRUSION MOLDING 10% TALC FILLED POLYPROPYLENE PAGE: 2/3 ISSUED DATE: 1997. 09. 26 REVISED DATE: 2007. 12. 17 VERSION: 5 GM DAEWOO Auto & Technology Type 1 Impact strength, IZOD (kg cm/cm) EDS-T-7514 Test piece (63.512.73.2mm) Room temperature -30 40 - 5.2
7、 Thermal properties Heat deflection Temperature() EDS-T-7520 Test piece (12712.76.4mm) 4.6kg/cm2115 5.3. General properties Density (g/cm3) EDS-T-7406 0.970.02 Melt flow index (g/10min) EDS-T-7516 230, 2.16kg 0.5 Talc contents (%) EDS-T-7301 103 Note) All the mechanical, thermal and general propert
8、y values above indicate minimum values except having the specified ranges. 6. TEST PIECE AND TEST 6.1. Test piece Test pieces shall be prepared with injection molding. Unless otherwise specified in the requirements of clause 5, they shall be conditioned at 235K and a relative humidity of 50% for 24
9、hours or more. 6.2. Test Tests shall be performed at 235K and a relative humidity of 50%. 7. APPROVAL OF RAW MATERIALS 7.1. Approved raw materials Division Approved suppliers Approved raw materials Remarks Type 1 Basell MT1120 EDS-M-4239EXTRUSION MOLDING 10% TALC FILLED POLYPROPYLENE PAGE: 3/3 ISSUE
10、D DATE: 1997. 09. 26 REVISED DATE: 2007. 12. 17 VERSION: 5 GM DAEWOO Auto & Technology 7.2. 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 pr
11、ocedure for chemical raw materials (Spec. No. EDS-M-0102). 8. AUTOMOTIVE RESTRICTED HAZARDOUS SUBSTANCES Materials and components of parts must comply with GMW3059. 9. OTHERS 9.1. Coding system Material specification of raw materials shall be indicated in drawings as follows. EDS-M-4239-0 Required p
12、roperty type (clause 5) Material group (None) Material specification number 10. RELATED STANDARDS EDS-M-0102 Procedures for approval of chemical raw material and quality control EDS-T-7301 Test method for determining the residue on ignition (ash) of polymeric materials EDS-T-7406 Determination of vo
13、lume and density of elastomers EDS-T-7510 Testing of plastics determination of the modulus of elasticity by tensile, compression and flexural test EDS-T-7511 Test method for the tensile property of plastics EDS-T-7514 Test method for determining the flexural strength of plastics EDS-T-7516 The test
14、method for the melt flow index of thermoplastics EDS-T-7517 The test method for Rockwell hardness of plastics EDS-T-7518 The method for the flexural strength of plastics EDS-T-7520 Test for deflection temperature of plastics under load GMW 3059 Restricted and reportable substance for parts GMW 3116 Recyclability / recoverability guidelines
