1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 2 2012 05 21 Rev/Act Activated B9, See Summary of Revisions V.Cerato, FoE 2011 05 10 Rev/Act Revised B1, Activated B2 V.Cerato, FoE 2010 05 19 Activated Released B1 V.Cerato, FoE Controlled document at www.MATS Copyright 2012, Ford Global
2、 Technologies, LLC Page 1 of 6 POLYPROPYLENE (PP) HOMOPOLYMER, 20% MINERAL WSS-M4D729-B1 FILLED, MOLDING COMPOUND POLYPROPYLENE (PP), 20% MINERAL FILLED, WRS-M4D729-B2 MOLDING COMPOUND, RECYCLED 50% PCR AND/OR PIR CONTENT POLYPROPYLENE (PP), 20% MINERAL FILLED, WRS-M4D729-B9 MOULDING COMPOUND, RECYC
3、LED 25% PCR AND/OR PIR CONTENT 1. SCOPE The materials defined by this specification are 20% mineral (talc) filled injection molding compounds based on polypropylene. 2. APPLICATION This specification was released originally for material used for rear lamp bulb holder cover and head lamp housing, bat
4、tery tray, heater and A/C unit, engine air cleaner and engine NVH cover. 2.1 LIMITATIONS These materials have low impact resistance at low temperatures. Production level materials must be used in preparing test parts / panels. The use of improper sample preparation materials can influence test resul
5、ts. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS 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
6、 (s), which indicated that the mean and +/- 3 sigma values were to be reported. The specification minimum, 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. 3.1.2 WSS-M4D729-B1 is
7、 based on virgin materials. 3.1.3 WRS-M4D729-B2/B9 must contain 50% and 25% Post Consumer (PCR) and/or Post Industrial (PIR) recycled content respectively as defined by WRS-M99P42-A1. The remaining portion of the material can come from virgin sources. 3.1.4 The use of regrind is permitted, for econo
8、mic / environmental reasons, with compliance as indicated in Ford Engineering CAD and Drafting Standard E-4. ENGINEERING MATERIAL SPECIFICATION WSS-M4D729-B1 WRS-M4D729-B2/B9 Copyright 2012, Ford Global Technologies, LLC Page 2 of 6 3.1.5 Performance Criteria: Parts using this material must comply w
9、ith all the requirements of WSK-M98P10-A/ Latest for exterior lighting application or WSS-M15P50-B/Latest for engine compartment and underbody applications 3.2 SAMPLE PREPARATION Unless otherwise specified all tests shall be carried out on injection molded, one-end gated test specimens. The test spe
10、cimens A and D shall be molded using molding conditions defined in ISO 1873-2. 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
11、 A. 80 x 10 x 4.0 +/- 0.2 mm Specimen 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 MATERIAL PROPERTIES 3.3.1 Filler Content 18 - 23% (ISO 3451-1, Method A, talc filler, 1 h
12、 at 750 +/- 25 C, test portion 2 to 2.5 g) 3.3.2 Density 1.03 - 1.15 g/cm3 (ISO 1183, Method A) 3.3.3 Tensile Strength at Yield 27 MPa min (ISO 527-1 and ISO 527-2, Specimen A, test speed:50 mm/minute) 3.3.4 Tensile Modulus 2.0 GPa min (ISO 527-1 Flow Cross Flow 7.7 11.7 E-5 mm/mm/ C E-5 mm/mm/ C 3.
13、4.7 Poissons Ratio 0.43 Ratio ENGINEERING MATERIAL SPECIFICATION WSS-M4D729-B1 WRS-M4D729-B2/B9 Copyright 2012, Ford Global Technologies, LLC Page 6 of 6 4.2 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES PP-TD20 (ISO 1043) Table 1: Minimum Sample Size Initial Approval New Manufacturing Location for
14、 Previously Approved Material Test Minimum Lots Specimens per lot Total Test Specimens Lots Specimens per lot Total Test Specimens 3.3.1 Filler Content* 3 1 3 1 1 1 3.3.2 Density 1 3 3 3.3.3 Tensile Strength at Yield* 3 5 15 1 5 5 3.3.4 Tensile Modulus 1 10 10 3.3.5 Flexural Modulus* 3 10 30 1 10 10
15、 3.3.6 Impact Strength Notched Izod (per condition)* 3 10 30 1 10 10 3.3.7 Heat Deflection Temperature* 3 2 6 1 2 2 3.3.8 Heat Aged Performance 3.3.8.1 Tensile Strength at Yield Change 1 5 5 3.3.8.2 Impact Strength, Notched Izod Change 1 10 10 3.3.9 Fogging 1 3 3 3.3.10 Flammability 1 5 5 3.4.1 Melt
16、 Flow Rate 3 1 3 3.4.2 Heat Deflection Temperature 3 2 6 3.4.3 Impact Strength, Notched Charpy (per condition) 1 10 10 3.4.4 Elongation at Yield 3 5 15 3.4.5 Mold Shrinkage 1 5 5 3.4.6 Coefficient of Linear Thermal Expansion (per condition) 1 3 3 3.4.7 Poissons Ratio 1 2 2 3.4.8 Curves 3 IR 4 TGA 5
17、DSC 6 CLTE Stress/Strain Curves AT 23C 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 2012 05 21 Added para 3.1.4 and 3.4.8 Supplemental information Modified Poissons Ratio in Table 1 from 5 to 2 samples Released B9 2011 10 04 Editorial changes from 3.1.1 to 3.1.4 2011 05 10 Revised B1 to new format. Released B2. 2010 05 19 Released B1
