1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2015 05 19 N Status No current usage or replacement G. Kowalski, NA 2006 07 18 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1995 01 31 Activated L. Hess Controlled document at www.MATS Copyright 2015, Ford Global Technologies, LL
2、C Page 1 of 4 POLYPROPYLENE (PP) HOMOPOLYMER, 30% WSS-M4D927-A1 MINERAL FILLED MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a 30% mineral (15% calcium carbonate (CaCO3) +15% talc) filled, pigmented injection molding compound based on polypropy
3、lene homopolymer. 2. APPLICATION This specification was released originally for material used for emission carbon canister housings. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Product
4、ion 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 6.0 - 9.0 g/10 minutes (ISO 1133, 230 C, 2.16 kg) 3.4.2 Mineral Content 27 - 33% (ISO 3451/1, Metho
5、d A, talc and calcium carbonate filler, 3 h at 650 +/- 25 C, test portion 1 to 2 g) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test 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 m
6、in 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 and/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. 3.5.2 Density 1.13 - 1.17 g/cm (ISO 1183,
7、Method A) ENGINEERING MATERIAL SPECIFICATION WSS-M4D927-A1 Copyright 2015, Ford Global Technologies, LLC Page 2 of 4 (s) 3.5.3 Tensile Strength at Yield, min 27 MPa (ISO R 527, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/min test speed) (s) 3.5.4 Flexural Modulus, min 2.0 GPa (ISO 178/ASTM D 7
8、90M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 64 mm support span) 64 mm support span) 3.5.5 Shear Modulus at 23 C 1.05 - 1.90 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 c
9、enter of specimen A. Specimen length between clamps 35-40 mm. Soak time at each temperature interval - 3 minutes minimum) Additionally, a Shear Modulus versus Temperature curve shall be plotted for -50 to +140 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance
10、range 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 2.6 kJ/m 3.5.6.2 At -40 +/- 2 C 1.4 kJ/m 3.5.6.3 At -10 +/- 2 C 1.6 kJ/m The test specimens must be conditioned for minimum of 6 h at the abov
11、e specified temperature 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) 3.5.7 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.
12、7.1 At 1.80 MPa 65 C 3.5.7.2 At 0.45 MPa 115 C 3.5.8 Heat Aging Performance (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 120 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) ENGINEERING MATERIAL SPECIFICATION WSS-M4D927-A1 Copyright 20
13、15, Ford Global Technologies, LLC Page 3 of 4 3.5.8.1 Tensile Strength at Yield Change +/- 15% (Test Method per para 3.5.3) 3.5.8.2 Impact Strength, Izod Change, max -15% (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FOGGING (FLTM BO 116-03, 3 h at 100 C heating, 21 C
14、 cooling plate) Fog Number, min 90 Formation of clear film, droplets or crystals is cause for rejection. 3.7 FLAMMABILITY (ISO 3795) Burn Rate, 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. 5. GENERAL INFORMATION The informati
15、on given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 3 7-5/ C (ASTM E 696) 5.2 MOLD SHRINKAGE (ISO 2577, approx. 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After
16、 48 h at 23 +/- 2 C 0.4 - 1.2% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.1 - 0.2% . After 30 min at 120 C 0.1 - 0.3% 5.3 IMPACT RESISTANCE, FALLING-WEIGHT, min 9 J (ASTM D 3029, Method GC, specimen thickness 3.2 mm) 5.4 RECYCLING CODE PP-(KD15+TD15) ENGINEERING MATERIAL SPECIFICATION WSS-M4D927-A1 Copyright 2015, Ford Global Technologies, LLC Page 4 of 4
