1、GM DAEWOO Auto & Technology EDS Engineering, GM DAEWOO Auto & Technology. Standards 50% LONG GLASS FIBER REINFORCED POLYPROPYLENE EDS-M-4258 ISSUED DATE: 2005. 06. 27 REVISED DATE: - VERSION: 1 EDS-M-425850% LONG GLASS FIBER REINFORCED POLYPROPYLENE PAGE: 1/3 ISSUED DATE: 2005. 04. 27 REVISED DATE:
2、- VERSION: 1 GM DAEWOO Auto & Technology 1. SCOPE This specification defines general requirements for raw materials of 50% long glass fiber reinforced polypropylene applied to interior and exterior parts of a vehicle. 2. MATERIAL INDICATION Material indication: % PP-GF50# Detailed contents shall con
3、form to the indication method of synthetic resin materials for vehicles.(Spec. No: EDS-M-0101) 3. APPLICATION 3.1. Type 1: Long glass fiber reinforced raw materials, which have especially excellent heat resistance and dimensional stability Ex) Pedals 4. REQUIREMENTS 4.1. Mechanical properties Type 1
4、 Rockwell hardness EDS-T-7517 R Scale - Tensile strength (kg/cm2) EDS-T-7511 Test piece (133mm) Test speed (5mm/min) 1,200 Elongation (%) EDS-T-7511 Test piece (133mm) Test speed (5mm/min) 3 Flexural strength (kg/cm2) EDS-T-7518 Test piece (12712.76.4mm) Test speed (2.8mm/min) 1,600 Flexural modulus
5、 (kg/cm2) EDS-T-7510 Test piece (12712.76.4mm) Test speed (2.8mm/min) 64,000 Impact strength, IZOD (kg cm/cm) EDS-T-7514 Test piece (63.512.73.2mm) Room temperature 16 EDS-M-425850% LONG GLASS FIBER REINFORCED POLYPROPYLENE PAGE: 2/3 ISSUED DATE: 2005. 04. 27 REVISED DATE: - VERSION: 1 GM DAEWOO Aut
6、o & Technology 4.2. Thermal proprieties Type 1 Heat deflection temperature () EDS-T-7520 Test piece (12712.76.4mm) 18.5 kg/cm2160 4.3. General properties Density (g/cm3) EDS-T-7406 1.330.02 Melt flow index (g/10min) EDS-T-7516 200, 5kg - Glass fiber contents (%) EDS-T-7301 502 Note) All the mechanic
7、al, thermal and general property values above indicate minimum values except having the specified ranges. 5. TEST PIECE AND TEST 5.1. Test piece Test pieces shall be prepared with injection molding. Unless otherwise specified in the requirements of clause 4, they shall be conditioned at 235K and a r
8、elative humidity of 50% for 24 hours or more. 5.2. Test Tests shall be performed at 235K and a relative humidity of 50%. 6. APPROVAL OF RAW MATERIALS 6.1. Approved raw materials Division Approved suppliers Approved raw materials Remarks Type 1 KEP CELSTRAN PPGF50-04 6.2. Approval and quality assuran
9、ce 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 chemical raw materials(Spec. No. EDS-M-0102). EDS-M-425850% LONG GLASS FIBER REINFORCED POLYPROPYLENE PAGE:
10、3/3 ISSUED DATE: 2005. 04. 27 REVISED DATE: - VERSION: 1 GM DAEWOO Auto & Technology 7. AUTOMOTIVE RESTRICTED HAZARDOUS SUBSTANCES Materials and components of parts must comply with EDS-A-0101. 8. OTHERS 8.1. Coding system Material specification of raw materials shall be indicated in drawings as fol
11、lows. EDS-M-4258- 0 Required property type (Clause 4) Material group (None) Material specification number 9. RELATED STANDARDS EDS-A-0101 Automotive restricted hazardous substances for parts EDS-M-0101 Material coding system of automotive plastic parts EDS-M-0102 Procedures for approval of chemical
12、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 volume and density of elastomers EDS-T-7510 Testing of plastics determination of the modulus of elasticity by tensile, compression and flexural tes
13、t 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 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
