1、GM DAEWOO Auto & Technology EDS Engineering, GM DAEWOO Auto & Technology Standards POLYCARBONATE EDS-M-5301 ISSUED DATE: 1995. 01. 10 REVISED DATE: 2007. 05. 25 VERSION: 6 EDS-M-5301POLYCARBONATE PAGE: 1/4 ISSUED DATE: 1995. 01. 10 REVISED DATE: 2007. 05. 25 VERSION: 6 GM DAEWOO Auto & Technology 1.
2、 SCOPE This specification defines general requirements for raw materials of polycarbonate applied to interior and exterior parts of a vehicle. 2. MATERIAL INDICATION Material indication: PC Detailed contents shall conform to the indication method of synthetic resin materials for vehicles.(Spec. No:
3、GMW3116) 3. APPLICATION 3.1. Group 1 3.1.1. Type 1 : High viscosity raw materials which have high impact resistance, excellent heat resistance, high transparence and are suitable for the molding of thick products. 3.1.2. Type 2 : Medium viscosity raw materials which have high impact resistance, exce
4、llent heat resistance, high transparence and are suitable for the molding of thick products. 3.1.3. Type 3 : Low viscosity raw materials which have high impact resistance, excellent heat resistance, high transparence and are suitable for the molding of thin products. 3.2. Group 2 3.2.1. Type 1 : Raw
5、 materials which are suitable for molding of lens and have high impact resistance, scratch resistance, and high transparence. Ex) Head lamp, License lamp 3.3. Group 3 3.3.1. Type 1 : Raw materials which have high impact resistance, excellent heat resistance, high transparence and especially good wea
6、ther resistance. 4. REQUIREMENTS 4.1. Mechanical properties Group 1Type 1Group 1Type 2Group 1 Type 3 Group 2Type 1Group 3Type 1Rockwell hardness EDS-T-7517 R Scale 118 118 118 118 118 EDS-M-5301POLYCARBONATE PAGE: 2/4 ISSUED DATE: 1995. 01. 10 REVISED DATE: 2007. 05. 25 VERSION: 6 GM DAEWOO Auto & T
7、echnology Group 1Type 1Group 1Type 2Group 1 Type 3 Group 2Type 1Group 3Type 1Tensile strength(kg/cm2) EDS-T-7511 Test piece (133mm) Test speed (5mm/min) 590 590 590 600 590 Elongation (%) EDS-T-7511 Test piece (133mm) Test speed (5mm/min) 100 100 100 100 100 Flexural strength (kg/cm2) EDS-T-7518 Tes
8、t piece(12712.76.4mm)Test speed(2.8mm/min) 910 900 900 910 900 Flexural modulus(kg/cm2) EDS-T-7510 Test piece(12712.76.4mm)Test speed(2.8mm/min) 21,00021,00021,000 22,00021,000Impact strength, IZOD (kg cm/cm) EDS-T-7514 Test piece(63.512.73.2mm) Room temperature -30 NB - NB - NB - NB - NB - 4.2. The
9、rmal properties Heat deflection Temperature() EDS-T-7520 Test piece(12712.76.4mm)18.6kg/cm2130 130 125 130 130 4.3. General properties Density (g/cm3) EDS-T-7406 1.20 1.20 1.20 1.20 1.20 Melt flow index(g/10 min) EDS-T-7516 300/1.2Kg 5 10 15 10 10 Note) All the mechanical, thermal and general proper
10、ty values above indicate minimum values except having specified ranges. EDS-M-5301POLYCARBONATE PAGE: 3/4 ISSUED DATE: 1995. 01. 10 REVISED DATE: 2007. 05. 25 VERSION: 6 GM DAEWOO Auto & Technology 5. TEST PIECE AND TEST 5.1. Test piece Test pieces shall be prepared with injection molding. Unless ot
11、herwise specified in the requirements of clause 4, they shall be conditioned at 235K and a relative 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 Ap
12、proved raw materials Remark Type 1 GE Plastics, LG Chem. LTD, SAMYANG Corporation LEXAN 101, GP1000HU, 3027 Type 2 GE Plastics, SAMYANG Corporation, LG Chem. LTD LEXAN 141, TRIREX 3025I (3022R), GP1000M Group 1 Type 3 GE Plastics, LG Chem. LTD, SAMYANG Corporation LEXAN121, GP1000L, 3020 Group 2 Typ
13、e 1 GE Plastics, SAMYANG Corporation LEXAN LS2, TRIREX 3022L1 Group 3 Type 1 GE Plastics, SAMYANG Corporation, LG chemical ltd. LEXAN 143, TRIREX 3025U, LUPOLY GP-1000MU 6.2. Approval and quality assurance procedure All raw materials shall be approved and regularly inspected for its quality prior to
14、 and during mass production delivery according to approval and quality assurance procedure for chemical raw materials(Spec. No. EDS-M-0102). 7. AUTOMOTIVE RESTRICTED HAZARDOUS SUBSTANCES Materials and components of parts must comply with GMW3059. EDS-M-5301POLYCARBONATE PAGE: 4/4 ISSUED DATE: 1995.
15、01. 10 REVISED DATE: 2007. 05. 25 VERSION: 6 GM DAEWOO Auto & Technology 8. OTHERS 8.1. Coding system Material specification of raw materials shall be indicated in drawings as follows. EDS-M- 5301 - Required property type (clause 4) Material group (clause 3)Material specification number 9. RELATED S
16、TANDARDS EDS-M-0102 Procedures for approval of chemical raw material and quality control 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 test EDS-T-7511 Test method for the ten
17、sile 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 GMW 3059 Restricted and Reportable Substance for Parts GMW 3116 Recyclability / Recoverability Guidelines
