1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 10 07 N-STATUS No replacement named L. Soreide, NA 2006 05 22 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1992 12 16 Released NB0010043054215 M.A. Myers Printed copies are uncontrolled Copyright 2010, Ford Global Technologie
2、s, LLC Page 1 of 5 POLYPROPYLENE (PP), 40% LONG GLASS FIBER WSB-M4D865-A REINFORCED MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a molding compound based on polypropylene homopolymer reinforced with long glass fibers (11.0 mm nominal length).
3、2. APPLICATION This specification was released originally for material used for underhood battery trays and cowl extension assemblies. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Produ
4、ction Materials (WSS-M99P1111-A). 3.4 MOLDING COMPOUND The material shall be dried for 2 h minimum at 88 C in a mechanical convection oven immediately preceding tests. 3.4.1 Glass Fiber Content 38 - 43% (ISO 3451/1, Method A, 1 h at 650 +/- 25 C) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Sp
5、ecimens 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 cen
6、ter portion of the test specimen A and/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. 3.5.2 Density 1.16 -1.28 g/cm (ISO 1183, Method A/ASTM D 792, Method A1) ENGINEERING MATERIAL SPECIFICATIONWSB-M4D865-APrinted copies are uncontrolled Copyright 2010, Ford Global
7、Technologies, LLC Page 2 of 5 3.5.3 Tensile Strength at Max Load, min 85 MPa (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 5 mm/min test speed) 3.5.4 Flexural Modulus, min 7.3 GPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/min test speed, 6
8、4 mm support span, the radius of the loading nose 5.0 +/- 0.1 mm and of the supports 2.0 +/- 0.2 mm) 3.5.5 Shear Modulus at 23 C 1.21 - 2.02 GPa (ASTM D 4065, 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 the cen
9、ter 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 +130 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range
10、 shown on page 5. 3.5.6 Impact Strength, Izod, min (ISO 180, Method A/ASTM D 256, Method A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 10 kJ/m 3.5.6.2 At -40 +/- 2 C 12 kJ/m The test specimens must be conditioned for minimum of 6 h at the above specified tem
11、perature 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. 3.5.7 Heat Deflection Temperature, min (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen, at standard deflection of 0.32 +/- 0.01 mm) 3.5.7.1
12、 At 1.80 MPa 140 C 3.5.7.2 At 0.45 MPa 145 C ENGINEERING MATERIAL SPECIFICATIONWSB-M4D865-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 5 3.5.8 Heat Aging Performance (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 120 +/- 2 C. Unaged property valu
13、es shall be determined at the time of the aged properties determination) 3.5.8.1 Tensile Strength Change +/- 25% (Test Method per para 3.5.3) 3.5.8.2 Impact Strength, Izod Change, max +/- 25% (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FLAMMABILITY (ISO 3795) Burn R
14、ate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 3.7 FOGGING (FLTM BO 116-03, 3 h at 100 C heating, 21 C cooling plate) Fog Number, min 85 Formation of a clear film, droplets or crystals is cause for rejection. 5. GENERAL IN
15、FORMATION 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) From -40 to 60 +/- 2C 2.4 - 2.8-5/ C From 60 to 90 +/- 2C 6.0 - 9.05/ C 5.2 MOLD SHRINKAGE (ISO 2577, approx.
16、 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C Molding Direction 0.31% Transverse Direction 0.54% ENGINEERING MATERIAL SPECIFICATIONWSB-M4D865-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 5 5.3 ELONGATION AT BREAK 1.5% (Test Method according to para 3.5.3) 5.4 MELT TEMPERATURE 163 C (ISO 3146, Method C) 5.5 RECYCLING CODE PP-GF40 ENGINEERING MATERIAL SPECIFICATIONWSB-M4D865-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 5
