1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 02 2012 03 15 N Status Replace with WSS-M4D865-B3 G. Eaton, NA 2004 04 05 Revised Revised para 1. M. Masserant 2004 03 25 Activated M. Masserant Controlled document at www.MATS Copyright 2012, Ford Global Technologies, LLC Page 1 of 4 POL
2、YPROPYLENE (PP) HOMOPOLYMER, 40% LONG GLASS FIBER WSS-M4D865-A3 REINFORCED MOLDING COMPOUND, HIGH PERFORMANCE, STRUCTURAL NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is an injection molding compound composed of a homopolymer polypropylene matrix, with 40% by wei
3、ght long glass fiber reinforcement, 11.0 mm nominal length before molding with improved sizing agent which enhances wettability and improved physical properties. Low shear screw should be used to preserve maximum fiber length in molded parts. 2. APPLICATION This specification was released originally
4、 for material used for load floors, GOR bolster integrated assembly, front end module, radiator support, and door modules. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materi
5、als (WSS-M99P1111-A). 3.1.1 All requirements of this specification, identified by symbol (s), shall be met with data representing 3 sigma values. 3.2 MOLDING COMPOUND (s) 3.2.1 Glass Fiber Content 38 - 43% (ISO 3451/1, Method A, 1 h at 650 +/- 25 C) 3.3 MOLDED TEST SPECIMEN 3.3.1 Preparation of Test
6、 Specimens Unless otherwise specified all tests shall be carried out on injection molded one-end gated test specimens. The following dimensions are required: A. 150 min x 10 x 4.0 +/- 0.2 mm (Tensile Bar, ISO 3167) B. 120 x 10 x 4.0 +/- 0.2 mm Specimens with shorter dimensions shall be cut from the
7、center portion of the test specimen A and/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. ENGINEERING MATERIAL SPECIFICATION WSS-M4D865-A3 Copyright 2012, Ford Global Technologies, LLC Page 2 of 4 3.3.2 Density 1.18 - 1.26 g/cm3 (ISO 1183, Method A) (s) 3.3.3 Tensil
8、e Strength, min 125.0 MPa (ISO R 527, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, 5 mm/minute test speed) 3.3.4 Tensile Modulus, min 9.0 Gpa (ISO 527, 5mm/min test speed) 3.3.5 Flexural Strength, min 170 MPa (ISO 178, 2mm/min, 23 C) (s) 3.3.6 Flexural Modulus, min 7.7 GPa (ISO 178, 80 x 10 x 4.0 +/-
9、 0.2 mm specimen, 64 mm support span) (s) 3.3.7 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.3.7.1 At 23 +/- 2 C 28 kJ/m 3.3.7.2 At - 40 +/- 1 C 32 kJ/m The test specimens must be conditioned for minimum of 6 h at the above specified temper
10、ature prior to impact test. Low temperature testing shall be done within the cold box, if not possible, test can be conducted outside, but within 5 s. (s) 3.3.8 Heat Deflection Temperature, min (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, edgewise, 0.32 +/- 0.01 mm deflection. At 1.80 MPa) 3.3.8.1 A
11、t 1.80 Mpa 160 C 3.3.9 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 140 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.3.9.1 Tensile Strength Change +/- 5% (Test Method per para 3.3.3) ENGINEERING MATERIAL SPECIF
12、ICATION WSS-M4D865-A3 Copyright 2012, Ford Global Technologies, LLC Page 3 of 4 3.3.9.2 Impact Strength, Izod Change +/- 5% (Test Method per para 3.3.7.1, specimens to be notched before heat aging) 3.4 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h and 16 h)
13、 Fog Number, min 80 Formation of clear film, droplets or crystals is cause for rejection. 3.5 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 3.2 +/- 0.1 mm with a smooth surface. 3.6 FLEXURAL FATIGUE, min 20 Mpa (ASTM D 671, Type
14、A 120 C, 1 x 107 cycles) 3.7 TENSILE CREEP, min 40 Mpa (ASTM D 2990 120 C, 100h) 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION (ASTM D 696) 5.1.1 From - 40
15、 to 50 +/- 2 C . Molding direction 2.4E-5/C . Transverse direction 6.2E-5/C 5.1.2 From 60 to 90 +/- 2 C . Molding direction 0.97E-5/C . Transverse direction 9.4E-5/C ENGINEERING MATERIAL SPECIFICATION WSS-M4D865-A3 Copyright 2012, Ford Global Technologies, LLC Page 4 of 4 5.2 MOLD SHRINKAGE (ISO 257
16、7, approx. 150 x 100 x 3.2 +/- 0.2 mm molded specimen) 5.2.1 Molding Shrinkage After 48 h at 23 +/- 2 C . Molding direction 0.12 0.22% . Transverse direction 0.32 0.42% 5.3 ELONGATION AT BREAK, MIN 2% (ISO 527, test according to para 3.3.3) 5.4 MELT TEMPERATURE 163 165 C (ISO 3146, Method C) 5.5 RECYCLING CODE PP-GF40
