1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 00 2011 06 06 Activated Activated G. Kowalski, NA Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 1 of 5 POLYPROPYLENE (PP) HOMOPOLYMER, 20% MINERAL WSS-M4D729-B7 FILLED, BLOW MOLDING COMPOUND, UNDERBODY
2、 AND ENGINE 1. SCOPE The material defined by this specification is a 20% mineral (talc) filled blow molding compound based on polypropylene with controlled rheological properties. 2. APPLICATION This specification was released originally for material used for engine air cleaner. 2.1 LIMITATIONS Thes
3、e materials have low impact resistance at low temperatures 3. REQUIREMENTS Production level materials must be used in preparing test parts / panels. The use of improper sample prep materials can influence test results. 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part pr
4、oducers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). Note: Many 4D resin specifications prior to 2011, identified certain requirements with the symbol (s), which indicated that the mean and +/- 3 sigma values were to be reported. The specification min
5、imum, maximum or range was established using 3 sigma data. For 2011 and beyond, refer to Table 1 for number of samples required for each test to establish specification limits. 3.1.1 Recycled content 3.1.1.1 This specification is based on virgin materials, however materials with recycled content as
6、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. The use of regrind is permitted, for economic / environmenta
7、l reasons, with compliance as indicated in WSS-M99P1111-A. 3.1.2 Performance Criteria: Parts using this specification shall meet the appropriate performance specifications, WSS-M15P50-B /Latest for engine compartment and underbody applications. ENGINEERING MATERIAL SPECIFICATION WSS-M4D729-B7 Printe
8、d copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 2 of 5 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 1
9、874-2. 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 (ISO 3795) 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 Specimen E 100 mm diameter x 3.2 mm Specime
10、n 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 MATERIAL PROPERTIES 3.3.1 Melt Flow Rate 0.5 2.0 g/10 minutes (ISO 1133, 230 C, 2.16 kg) 3.3.2 Filler Content 18 - 23% (ISO 3451-1, Method A, talc filler, 1 h at
11、 750 +/- 25 C, test portion 2 to 2.5 g) 3.3.3 Density 1.02 1.08 g/cm3 (ISO 1183, Method A) 3.3.4 Tensile Strength at Yield 29 MPa min (ISO 527-1 and ISO 527-2, Specimen A, 50 mm/minute test speed) 3.3.5 Tensile Modulus 2.5 GPa min (ISO 527-1 and ISO 527-2, Specimen A 1 mm/minute test speed) 3.3.6 Fl
12、exural Modulus 2.2 GPa min (ISO 178, Specimen D 64 mm support span, 2 mm/minute test speed) 3.3.7 Impact Strength, Notched Charpy (ISO 179-1/2, Specimen D) 3.3.7.1 At 23 +/- 2 C 2.9 kJ/m2 min Report Break 3.3.7.2 At -40 +/- 2 C 1.1 kJ/m2 min Report Break The test specimen must be conditioned for min
13、imum of 6 hours at the above specified temperature prior to impact test. Low temperature testing shall be done within the cold chamber, if not possible, test may be conducted outside, but within 5 seconds. ENGINEERING MATERIAL SPECIFICATION WSS-M4D729-B7 Printed copies are uncontrolled Copyright 201
14、1, Ford Global Technologies, LLC Page 3 of 5 3.3.8 Heat Deflection Temperature 62 C min (ISO 75-1 and ISO 75-2 Specimen D, flatwise, 0.34 +/- 0.1 mm deflection. At 1.80 MPa) 3.3.9 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 130 +/- 2 C. Unaged property values shall be
15、 determined at the time of the aged properties determination) 3.3.9.1 Tensile Strength at Yield Change - 25% max (Test Method per para 3.3.4) 3.3.9.2 Impact Strength, Charpy Change - 25% max (Test Method per para 3.3.7.1 specimens to be notched before heat aging) 3.3.10 Flammability (ISO 3795/SAE J3
16、69 Specimen B smooth surface) Burn Rate 100 mm/minute max 3.4 MATERIAL PROPERTIES REPORT ONLY Values are retained in Ford Materials Database 3.4.1 Heat Deflection Temperature Report Value, C (ISO 75-1 and ISO 75-2 Specimen D, flatwise, 0.34 +/- 0.1 mm deflection. At 0.45 MPa) 3.4.2 Impact Strength
17、Notched Izod (ISO 180/1A, Specimen D) 3.4.2.1 At 23+/-2 C Report Value, kJ/m2 3.4.2.2 At -40+/-2 C Report Value, kJ/m2 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 done within the cold chamber
18、, if not possible, test may be conducted outside, but within 5 seconds. 3.4.3 Elongation at Yield Report Value, % (ISO 527-1 and ISO 527-2, Specimen A, 50 mm/minute test speed) 3.4.4 Molding Shrinkage (Report method used, sample size and value) After 48 h at 23 +/- 2 C Flow Report Value, % Across Fl
19、ow Report Value, % ENGINEERING MATERIAL SPECIFICATION WSS-M4D729-B7 Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 4 of 5 3.4.5 Coefficient of Linear Thermal Expansion (ISO 11359-2 TMA, - 30 +/- 2 oC to 100 +/- 2 oC) Flow Report Value, E-5 mm/mm/ C Across Flow Rep
20、ort Value, E-5 mm/mm/ C 3.4.6 Poissons Ratio Report Ratio (ISO 527-1 and ISO 527-2, Specimen A 1 mm/minute test speed) 3.4.7 Supplemental Information The following curves are to be submitted with the data packages: FTIR TGA DSC CLTE Engineering Stress/Strain at 23 and -40C 4. GENERAL INFORMATION The
21、 information given below is provided for clarification and assistance in meeting the requirements of this specification. 4.1 TYPICAL PROPERTIES USING METHODS IN SECTION 3.4 Test Typical Values Units 3.4.1 Heat Deflection Temperature At 0.45 MPa 115 C 3.4.2.1 Impact Strength Notched Izod At 23 +/- 2
22、C 5.0 kJ/m2 3.4.2.2 Impact Strength Notched Izod At -40 +/- 2 C 2.6 kJ/m2 3.4.3 Elongation at Yield 72 % 3.4.4 Molding Shrinkage After 48 h at 23 +/- 2 C 1.22 % 3.4.5 Coefficient of Linear Thermal Expansion; - 30 +/- 2 oC to 100 +/- 2 oC, Flow 9.211 E-5 mm/mm/ C 3.4.5 Coefficient of Linear Thermal E
23、xpansion; - 30 +/- 2 oC to 100 +/- 2 oC, Across Flow 14.00 E-5 mm/mm/ C 3.4.6 Poissons Ratio 0.45 Ratio 4.2 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES PP-TD20 (ISO 1043) ENGINEERING MATERIAL SPECIFICATION WSS-M4D729-B7 Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC
24、 Page 5 of 5 Table 1: Minimum Sample Size Initial Approval New Manufacturing Location for Previously Approved Material Para. Test Minimum Lots Specimens per Lot Total Test Specimens Lots Specimens per lot Total Test Specimens 3.1 WSS-M99P1111-A 3.3.1 Melt Flow Rate 3 1 3 1 1 1 3.3.2 Filler Content*
25、3 1 3 1 1 1 3.3.3 Density 1 3 3 3.3.4 Tensile Strength at Yield* 3 5 15 1 5 5 3.3.5 Tensile Modulus 1 10 10 3.3.6 Flexural Modulus* 3 10 30 1 10 10 3.3.7 Impact Strength Notched Charpy (per condition)* 3 10 30 1 10 10 3.3.8 Heat Deflection Temperature* 3 2 6 1 2 2 3.3.9 Heat Aging Performance 3.3.9.
26、1 Tensile Strength at Yield Change 1 5 5 3.3.9.2 Impact Strength, Notched Charpy, Change 1 5 5 3.3.10 Flammability 1 5 5 3.4.1 Heat Deflection Temperature 1 2 2 3.4.2 Impact Strength, Notched Izod (per condition) 1 10 10 3.4.3 Elongation at Yield 1 5 5 3.4.4 Mold Shrinkage 1 5 5 3.4.5 Coefficient of Linear Thermal Expansion (per condition) 1 3 3 3.4.6 Poissons Ratio 1 5 5 3.4.7 Curves - IR - TGA - DSC - CLTE - Stress/Strain Curves 1 1 1 per test * For these requirements, the 3 Sigma value from the raw data is used to set the requirement max or min. 5. SUMMARY OF REVISIONS New specification
