1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 2 2014 05 29 Revised See Summary of Revisions G. Eaton, NA 2013 09 09 Released Released B2 G. Eaton, NA 2013 05 15 Released Released B7 V.Cerato, FoE Controlled document at www.MATS Copyright 2014, Ford Global Technologies, LLC Page 1 of
2、 7 POLYPROPYLENE (PP) HOMOPOLYMER, 30% GLASS FIBER WSS-M4D732-B2 FILLED MOLDING COMPOUND, EXTERIOR POLYPROPYLENE (PP) COPOLYMER, 30% GLASS FIBER WSS-M4D732-B7 FILLED MOLDING COMPOUND, EXTERIOR 1. SCOPE The materials defined by these specifications are 30% glass fiber filled thermoplastic injection m
3、olding compounds based on polypropylene with added UV stabilization and scratch additives for exterior use. 2. APPLICATION These specifications were released originally for material used in mold-in-color exterior applications, specifically for cowl top ventilator grills. Any color additives need to
4、be reviewed and approved by the raw material supplier and Ford Materials Engineering. The UV/process/heat stabilizers must be in the base resin from the material supplier, not in the color concentrate, specifically for mold-in-color applications at the press. 2.1 LIMITATIONS These materials should n
5、ot be used for painted applications since they contain performance additives that negatively affect paint adhesion. Production level materials must be used in preparing test parts / panels. The use of improper sample prep materials can influence test results. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENT
6、S FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1.1 Many 4D resin specifications prior to 2011, identified certain requirements with the symbol (s), which indicated that the mean and +/-
7、3 sigma values were to be reported. The specification minimum, maximum or range was established using 3 sigma values. For 2011 and beyond, refer to Table 1 for number of samples required for each test. 3.1.2 These specifications are based on virgin materials, however materials with recycled content
8、as defined by WRS-M99P42-A1 (post-consumer and/or post industrial recyclates and repolymerised recycled materials) should be used whenever technically feasible and following all materials and PV testing required by Ford Materials Engineering. 3.1.3 The use of regrind is permitted, for economic / env
9、ironmental reasons, with compliance as indicated in Ford Engineering CAD and Drafting Standard E-4. 3.1.4 Performance Criteria Parts using these specifications shall meet the appropriate performance specifications WSS-M98P13-C / Latest. ENGINEERING MATERIAL SPECIFICATION WSS-M4D732-B2 WSS-M4D732-B7
10、Copyright 2014, Ford Global Technologies, LLC Page 2 of 7 3.1.5 As specified in WSS-M99P1111-A, paragraph 3.2, Ford Materials Engineering may request a Control Plan and Certificate of Analysis (CoA) containing lot testing requirements which must include, but are not limited to: Tensile Strength at Y
11、ield Impact Strength, Notched Charpy at -40C Flexural Modulus 3.2 SAMPLE PREPARATION Unless otherwise specified all tests shall be carried out on injection molded, one-end gated test specimens. The test specimens A and D shall be molded using molding conditions defined in ISO 1873-2. No annealing is
12、 allowed. See Table 1 for the number of samples required. Specimens shall be as follows: Specimen A 150 minimum x 10 x 4.0 +/- 0.2 mm (ISO 527-2, Specimen Type 1A) Specimen B 355 x 100 x 1.0 +/- 0.1 mm Specimen C 145 x 60 x 3.2 +/- 0.2 mm Specimen D Center of Specimen A, 80 x 10 x 4.0 +/- 0.2 mm Spe
13、cimen E 100 mm diameter x 3.2 mm Specimen F 80 mm diameter x 3.2 mm Specimen G 90 mm x 200 mm Specimen H 50 +/- 1 mm diameter x 3.2 +/- 0.2 mm Specimen I 100 mm x 150 mm, min 3.3 APPEARANCE 3.3.1 Weathering Resistance Rating 4 min (SAE J2527 Atlas Water Cooled, Rotary Drum Xenon-Arc Apparatus only.
14、Modified Type “S“ borosilicate inner and outer filters, 0.55 W/m2 radiant exposure monitored at 340 nm, 3000 h total exposure or as otherwise defined, Specimen C, from smooth polished mold, ISO 105-A02 / AATCC Evaluation Procedure 1) For color durability submissions, test all program colors. 3.3.2 1
15、 and 2 year Florida Rating 4 min Initial Qualification for new resin technology (SAE J1976, 5 south, direct weathering inland, Specimen C from smooth polished mold, ISO 105-A02 / AATCC Evaluation Procedure 1) After exposure the material shall show no color change in excess of the specified AATCC Rat
16、ing. In addition, there shall be no cracking, crazing or other deterioration. A slight loss of gloss or chalking will be allowed provided an acceptable appearance can be achieved as specified below by washing with mild detergents and water (ratio 5:95 by volume) or equivalent after the outdoor expos
17、ure only. All initial approvals may be based on the accelerated ENGINEERING MATERIAL SPECIFICATION WSS-M4D732-B2 WSS-M4D732-B7 Copyright 2014, Ford Global Technologies, LLC Page 3 of 7 weathering exposure, pending real world outdoor exposure results for final approval. 3.3.3 Resistance to Scratch an
18、d Mar (FLTM BO 162-01, Specimen I) Scratch Rating 2 at 2 N, max Whitening/Color Change Rating 1 at 7 N, max Marring Rating 2 at 2 N, max These values are derived from colored and grained samples in agreement with Materials Engineering. Details regarding color house, let down ratio, colors, grain, et
19、c can be found in the approval package. 3.4 MATERIALS PROPERTIES 3.4.1 Determination of Ash 27 - 32 % (ISO 3451-1, Method A, Glass Fiber, 1h at 850 +/-50C, test portion 2 to 2.5g) 3.4.2 Density 1.08 1.16 g/cm3 (ISO 1183, Method A) 3.4.3 Tensile Strength at Yield B2 B7 (ISO 527-1 and ISO 527-2, Speci
20、men A, 75 MPa min 65 MPa min 50 mm/minute test speed) 3.4.4 Tensile Modulus 4.9 GPa, min (ISO 527-1 and ISO 527-2, Specimen A, 1 mm/min test speed) 3.4.5 Flexural Modulus 4.5 GPa min (ISO 178, Specimen D, 64 mm support span, 2 mm/minute test speed) 3.4.6 Impact Strength, Notched Charpy B2 B7 (ISO 17
21、9-1/1eA, Specimen D) 3.4.6.1 At 23 +/- 2 C 6.0 kJ/m2 min 10.0 kJ/m2 min Report Break Type 3.4.6.2 At -40 +/- 2 C 3.0 kJ/m2 min 4.5 kJ/m2 min Report Break Type 3.4.7 Heat Deflection Temperature 135C min (ISO 75-1 and ISO 75-2, Specimen D, flatwise, 0.34 +/- 0.1 mm deflection. At 1.80 MPa) ENGINEERING
22、 MATERIAL SPECIFICATION WSS-M4D732-B2 WSS-M4D732-B7 Copyright 2014, Ford Global Technologies, LLC Page 4 of 7 3.4.8 Heat Aging Performance (ISO 188, 150 +/- 50 air changes/h, 1000 h at 120 +/- 2 C. After heat aging test specimens are to be conditioned in a desiccator for 3 - 5 h at 23 +/- 2 C. Unage
23、d property values shall be determined at the time of the aged properties determination) 3.4.8.1 Tensile Strength at Yield, Change +/- 25% max (Test Method per para 3.4.3) 3.4.8.2 Impact Strength, Notched Charpy, Change +/- 25% max (Test Method per para 3.4.6.1, specimens to be notched before Heat Ag
24、ing) 3.4.9 Flammability (ISO 3795/SAE J369, Specimen B, smooth surface) Burn Rate 100 mm/minute max 3.5 MATERIALS PROPERTIES - REPORT ONLY Values are retained in Ford Materials Database . 3.5.1 Melt Flow Rate Report Value, g/10 minutes (ISO 1133 230 C, 2.16 kg) 3.5.2 Molding Shrinkage (Report method
25、 used, sample size and value) After 48 h at 23 +/- 2 C Flow Report Value, % Cross Flow Report Value, % 3.5.3 Coefficient of Linear Thermal Expansion (Report Method, -30 +/- 2 C to 100 +/- 2 C) Flow Report Value, E-5 mm/mm/ C Cross Flow Report Value, E-5 mm/mm/ C 3.5.4 Impact Strength, Notched Izod (
26、ISO 180/1A, Specimen D) 3.5.4.1 At 23 +/- 2 C Report Value kJ/m2 Report Break Type 3.5.4.2 At - 40 +/- 2 C Report Value kJ/m2 Report Break Type The test specimen must be conditioned for a minimum of 6 hours at the above specified temperature prior to impact test. Low temperature testing shall be don
27、e within the cold chamber, if not possible, test may be conducted outside, but within 5 seconds. ENGINEERING MATERIAL SPECIFICATION WSS-M4D732-B2 WSS-M4D732-B7 Copyright 2014, Ford Global Technologies, LLC Page 5 of 7 3.5.5 Poissons Ratio Report Ratio (ISO 527-1 and ISO 527-2, Specimen A, 1 mm/minut
28、e test speed) 3.5.6 Supplemental Information The following curves are to be submitted with the data packages: FTIR TGA DSC CLTE Engineering Stress/Strain at 23 C 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specif
29、ication. Contact for questions concerning Engineering Material Specifications. 4.1 TYPICAL PROPERTIES USING METHODS IN SECTION 3.5 Para. Test Typical Value Units 3.5.1 Melt Flow Rate Homopolymer (B2): Copolymer (B7): 27 13 g/10 min 3.5.2 Molding Shrinkage After 48 h at 23 +/- 2 C (For specific meth
30、od and sample size, contact Materials Engineering) Flow Cross Flow 0.3 0.9 % % 3.5.3 Coefficient of Linear Thermal Expansion Flow Cross Flow 4.98 6.41 E-5 mm/mm/ C E-5 mm/mm/ C 3.5.4 Impact Strength Notched Izod At 23C At -40C 8.5 6.5 kJ/m2 kJ/m2 3.5.5 Poissons Ratio 0.41 ENGINEERING MATERIAL SPECIF
31、ICATION WSS-M4D732-B2 WSS-M4D732-B7 Copyright 2014, Ford Global Technologies, LLC Page 6 of 7 4.2 GENERIC IDENTIFICATION AND MARKING OF PLASTIC PRODUCTS PP-GF30 (ISO 1043/11469) Table 1: Minimum Sample Size Initial Approval New Manufacturing Location for Previously Approved Material Para. Test Minim
32、um Lots Specimens per Lot Total Test Specimens Lots Specimens per lot Total Test Specimens 3.1 WSS-M99P1111-A and WSS-M98P13-C/latest 3.3.1 Weathering Resistance 1 1 1 3.3.2 1 and 2 year Florida 1 1 1 3.3.3 Scratch Resistance 1 3 3 3.4.1 Ash Content* 3 1 3 1 1 1 3.4.2 Density 1 3 3 3.4.3 Tensile Str
33、ength at Yield* 3 5 15 1 5 5 3.4.4 Tensile Modulus 1 10 10 3.4.5 Flexural Modulus* 3 10 30 1 10 10 3.4.6 Impact Strength Charpy (per condition)* 3 10 30 1 10 10 3.4.7 Heat Deflection Temperature* 3 2 6 1 2 2 3.4.8 Heat Aging Performance 3.4.8.1 Tensile Strength at Yield, Change 1 5 5 3.4.8.2 Impact
34、Strength, Charpy, Change 1 10 10 3.49 Flammability 1 5 5 3.5.1 Melt Flow Rate* 1 1 1 1 1 1 3.5.2 Mold Shrinkage 1 5 5 1 5 5 3.5.3 Coefficient of Linear Thermal Expansion (per condition) 1 3 3 3.5.4 Impact Strength, Notched Izod (per condition) 1 10 10 3.5.5 Poissons Ratio 1 5 5 3.5.6 Curves - IR - T
35、GA - DSC - CLTE - Stress/Strain Curves 1 1 1 per test * For these requirements the 3 sigma value from the raw data is used to meet the requirements. ENGINEERING MATERIAL SPECIFICATION WSS-M4D732-B2 WSS-M4D732-B7 Copyright 2014, Ford Global Technologies, LLC Page 7 of 7 Table 2: Minimum Color Propert
36、y Testing 5. SUMMARY OF REVISIONS 2014 05 29 Added section 3.1.5 Modified Tensile Strength minimum for B2 suffix Modified Charpy Impact at -40C minimum for B2 suffix Modified CLTE typical value 2013 09 09 Released B2 suffix for homopolymer 30% GF PP Distinguished property differences for 3.4.3 Tensi
37、le Strength and 3.4.6 Charpy Impact Added homopolymer MFR typical value in 4.1. Para. Test Lots Specimens per Lot Total Test Specimens Color Test Direction 3.3.1 Weathering Resistance 1 1 1 Every color 3.3.3 Scratch Resistance 1 3 3 As directed by Materials Engineering 3.4.3 Tensile Strength at Yield 1 5 5 As directed by Materials Engineering 3.4.5 Flexural Modulus 1 10 10 As directed by Materials Engineering 3.4.6.1 Impact Strength, Notched Charpy at 23 +/- 2 C 1 10 10 As directed by Materials Engineering 3.4.9 Flammability 1 5 5 Every color
