1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 09 10 N-STATUS Replaced by WSS-M4D1051-A1, WSS-M4D1052-A2, WSS-M4D1053-A1 WSS-M4D1053-A2 L. Soreide, NA 2006 02 21 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.9, 3.10 & 4 1996 09 19 Activated M. Myers G. Molnar Printed copies are uncon
2、trolled Copyright 2010, Ford Global Technologies, LLC Page 1 of 5 POLYCARBONATE (PC), MODIFIED, HIGH FLOW AND WSS-M4D796-A3 HIGH HEAT RESISTANT MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a thermoplastic high heat resistant and high flow inje
3、ction molding compound based on bisphenol A/bisphenol C derived co-polycarbonate. This material is self-extinguishing (SE) without flame retardant additives. 2. APPLICATION This specification was released originally for material used for front lighting reflector housings. 3. REQUIREMENTS 3.0 STANDAR
4、D REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1.1 All requirements of this specification, identified by symbol (s), shall be met with data representing 3 sigma values. 3.4
5、MOLDING COMPOUND (s) 3.4.1 Melt Flow Rate 12.0 - 18.0 g/10 minutes (ISO 1133, 330 C, 2.16 kg) The material shall be dried for 4 h minimum at 130 - 140 C in a mechanical convection oven immediately preceding the test. 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise speci
6、fied all tests shall be carried out on injection molded one-end gated test specimens. The following dimensions are required: A. 150 minimum x 10 x 4.0 +/- 0.2 mm (ISO 3167, Type 1A) B. 60 x 60 x 2.0 +/- 0.1 mm (ISO/DIS 294-3) C. 355 x 100 x 1.0 +/- 0.1 mm (ISO 3795) Test specimen A shall be molded u
7、sing molding conditions defined in ISO 7391-2. Specimens with shorter dimensions shall be cut from the center of the specimen A. No annealing allowed. 3.5.2 Density 1.16 - 1.18 g/cm3 (ISO 1183, Method A) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D796-A3 Printed copies are uncontrolled Copyright 2010,
8、Ford Global Technologies, LLC Page 2 of 5 (s) 3.5.3 Tensile Strength at Yield, min 65 MPa (ISO R 527-1 & ISO 527-2, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, test speed: 50 mm/minute or 5 mm/minute) (s) 3.5.3.1 Elongation at Break, min 60% (Test Method according to para 3.5.3) (s) 3.5.4 Flexural M
9、odulus, min 2.0 GPa (ISO 178 use center section of specimen A, 2 mm/minute test speed, 64 mm support span) 3.5.5 Shear Modulus at 23 C 720 - 1080 MPa (ASTM D 5279, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Specimen approx. 60 x 10 x 4.0 +/- 0.2 mm cut from th
10、e center of specimen A. Specimen length between clamps 35 - 40 mm. Soak time at each temperature interval - 3 minutes minimum). Additionally, a shear modulus vs. temperature curve shall be plotted for -50 to +180 C temperature range, at 5 C minimum intervals. The plotted curve must be within toleran
11、ce range granted on the original material approval and it shall constitute the reference standard for materials supplied to this specification and shall be kept on file at the designated material laboratory and be available on request. (s) 3.5.6 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0
12、+/- 0.2 mm specimen use center section of specimen A, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 4 kJ/m23.5.6.2 At -40 +/- 2 C 4 kJ/m2The test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact test. Low temperature testing shall be done within
13、 the cold chamber, if not possible, test may be conducted outside, but within 5 seconds. (s) 3.5.7 Heat Deflection Temperature, min 143 C (ISO 75-1 & ISO 75-2, 80 x 10 x 4.0 +/- 0.2 mm specimen use center section of specimen A, flatwise, 0.34 +/- 0.1 mm deflection. At 1.80 MPa) All specimens dry as
14、molded. If not tested immediately after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. ENGINEERING MATERIAL SPECIFICATIONWSS-M4D796-A3 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 5 (s) 3.5.8 Vicat Softening
15、Temperature, min 163 C (ISO 306, 10 x 10 x 4.0 +/- 0.2 mm specimens use center section of specimen A. Bath - silicone oil, temperature raise 50 +/- 5 C/h. Dial gage reset to 0 after addition of 5 kg weight. At 50 N load) All specimens dry as molded. If not tested immediately after molding, specimens
16、 must be stored in a sealed, moisture-proof container filled with silica gel. 3.5.9 Heat Aging Performance (ISO 188, 150 +/- 50 air changes/h, 1000 h at 130 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.9.1 Tensile Strength at Yield +/- 25%
17、 Change 3.5.9.2 Impact Strength, Izod Change +/- 25% (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 and 16 h) Fog Number, min 95 Formation of clear film, droplets or crystals is caus
18、e for rejection. 3.7 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm (use specimen C) with a smooth surface. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in
19、 meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 6.5 - 8.5-5/C (ASTM D 696, temperature range -30 to +30 C) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D796-A3 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 5 5.2 MOLD S
20、HRINKAGE (ISO 2577, approx. 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 0.65 - 0.85% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.05% . After 30 minutes at 120 C 0.05% 5.3 MELT VOLUME RATE 12 - 18
21、 (ISO 1133, 330 C, 2.16 kg, extrudate volume in cm3/10 minutes) The material shall be dried for 4 h minimum at 130 - 140 C in a mechanical convection oven immediately preceding the test. 5.4 HEAT DEFLECTION TEMPERATURE 154 C (ISO 75-1 & ISO 75-2, 80 x 10 x 4.0 +/- 0.2 mm specimen use center section
22、of specimen A, flatwise, 0.34 +/- 0.1 mm deflection. At 0.45 MPa.) 5.5 ELONGATION AT YIELD, min 4.0% (Test Method according to para 3.5.3) 5.6 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES PC ENGINEERING MATERIAL SPECIFICATIONWSS-M4D796-A3 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 5
