1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 07 21 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 Fixed numbering in 3.5.3, 3.5.6 Para 1, 3.4.1, 3.5.2 L. Hess 1996 08 26 Activated L. Hess A. Brooks Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC
2、Page 1 of 4 POLYPROPYLENE (PP) HOMOPOLYMER, 30% GLASS WSS-M4D941-A1 FIBER/MICA REINFORCED MOLDING COMPOUND, LUBRICATED AND HEAT STABILIZED WITH 25% MINIMUM RECYCLED CONTENT 1. SCOPE The material defined by this specification is a 30% glass fiber/mica reinforced thermoplastic injection molding compou
3、nd lubricated and heat stabilized based on 25% minimum recycled polypropylene homopolymer from post consumer sources. 2. APPLICATION This specification was released originally for material used for air cleaner housings. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material supp
4、liers 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 MOLDING COMPOUND (s) 3.4.1 Melt Flow Rate 4.0 - 7.0 g
5、/ (ISO 1133, 230 C, 2.16 kg) 10 minutes (s) 3.4.2 Glass Fiber/Mica Content 28 - 32% (ISO 3451/1, Method A, 1 h at 700 +/- 25 C) (s) 3.4.3 Melt Temperature, min 160 C (ISO 3146, Method C, 10 C/minute heating rate) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified
6、 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 center portion of the test specimen A
7、 and/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. NOT TO BE USED FOR NEW DESIGN 2012 N Status Replaced by WRS-M4D941-B1 B Haggart, NAENGINEERING MATERIAL SPECIFICATIONWSS-M4D941-A1Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page
8、2 of 4 3.5.2 Density 1.10 - 1.16 (ISO 1183, Method A) g/cm3(s) 3.5.3 Tensile Strength at Max Load, min 53 MPa (ISO R 527, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/minute test speed) (s) 3.5.3.1 Elongation at Break, min 3.2% (Test Method according to para 3.5.3) (s) 3.5.4 Flexural Modulus, min 3
9、9 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/minute test speed, 64 mm support span) 3.5.5 Shear Modulus at 23 C 1.33 - 2.22 GPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Specimen approximately 60 x 10 x 4.0 +/- 0.2 mm cut from the ce
10、nter of specimen A. Specimen length between clamps 35 - 40 mm. Soak time at each temperature interval - 3 minutes min) Additionally, a Shear Modulus versus Temperature curve shall be plotted for -50 to +150 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance ran
11、ge shown on page 4. (s) 3.5.6 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 3.2 kJ/m23.5.6.2 At -40 +/- 1 C 2.1 kJ/m2The test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to im
12、pact test. Low temperature testing shall be done within the cold box. (s) 3.5.7 Heat Deflection Temperature, min (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, edgewise, 0.32 +/- 0.01 mm deflection) 3.5.7.1 At 1.80 MPa 131 C 3.5.7.2 At 0.45 MPa 152 C All specimens dry as molded. If not tested immediat
13、ely after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. 3.5.8 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 150 +/- 2 C. After heat aging test specimens are to be conditioned in a desiccator for 3 - 5 h at 23 +/- 2 C. Un
14、aged property values shall be determined at the time of the aged properties determination) NOT TO BE USED FOR NEW DESIGN 2012 N Status Replaced by WRS-M4D941-B1 B Haggart, NAENGINEERING MATERIAL SPECIFICATIONWSS-M4D941-A1Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC P
15、age 3 of 4 3.5.8.1 Tensile Strength at Max +/- 25% Load Percent Change (Test Method per para 3.5.3) 3.5.8.2 Impact Strength, Izod +/- 25% Change (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 condi
16、tioning 1 h) Fog Number, min 90 Formation of clear film, droplets or crystals is cause 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 1.5 +/- 0.1 mm with a smooth surface. 5. GENERAL INFORMATION The inf
17、ormation given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 34.8-5/ C (ASTM E 831 (TMA), temperature range -30 to 30 C) 5.2 MOLD SHRINKAGE (ISO 2577, approx. 150 x 100 x 3.2 +/- 0.2 mm injection mold
18、ed specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 0.10% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.20% . After 30 min at 120 C 0.40% 5.3 HARDNESS, DUROMETER D 80 (ISO 868, 15 s dwell) 5.4 RECYCLING CODE PP-(GF+P)30 NOT TO BE USED FOR NEW DESIGN 2012 N Status Replaced by WRS-M4D941-B1 B Haggart, NAENGINEERING MATERIAL SPECIFICATIONWSS-M4D941-A1Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 4 NOT TO BE USED FOR NEW DESIGN 2012 N Status Replaced by WRS-M4D941-B1 B Haggart, NA
