1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 02 2013 07 04 Released Revision of WSS-M4D752-B1 added WRS-M4D752-B2/B3 V. Cerato, FoE 2011 03 17 Revised See Summary of Revisions V. Cerato, FoE 2010 06 29 Activated V Cerato / G. Kowalski concurred by Global Materials Team Controlled do
2、cument at www.MATS Copyright 2013, Ford Global Technologies, LLC Page 1 of 6 POLYAMIDE (PA) 6,6 HEAT STABILIZED, COOLING AGENT WSS-M4D752-B1 RESISTANT, 30% GLASS FIBER REINFORCED MOLDING COMPOUND POLYAMIDE (PA) 6,6 HEAT STABILIZED, COOLING AGENT WRS-M4D752-B2 RESISTANT, 30% GLASS FIBER REINFORCED MO
3、LDING COMPOUND RECYCLED GRADE, 25% PCR AND/OR PIR CONTENT POLYAMIDE (PA) 6,6 HEAT STABILIZED, COOLING AGENT WRS-M4D752-B3 RESISTANT, 30% GLASS FIBER REINFORCED MOLDING COMPOUND RECYCLED GRADE, 50% PCR AND/OR PIR CONTENT 1. SCOPE The materials defined by these specifications are thermoplastic injecti
4、on molding compound based on a 30% glass fiber reinforced, heat stabilized, cooling agent resistant polyamide 6,6. 2. APPLICATION These specifications were released originally for material used for parts of the engine cooling components. 2.1 LIMITATIONS This material absorbs and retains moisture. Pa
5、rt design and tolerances must accommodate changes in part dimensions and physical properties due to moisture absorption or loss in the service/assembly environment. This material does not contain UV stabilizers, long term exposure to direct sunlight will cause chalking and loss of gloss. 3. REQUIREM
6、ENTS 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 (s), which ind
7、icated that the mean and +/- 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 WSS-M4D752-B1 is based on virgin materials. 3.1.3 WRS-M4D752-B2
8、 must contain 25% recycled content as defined by WRS-M99P42-A1 (post- consumer and/or post industrial recyclates and repolymerised recycled materials) The remaining portion of the material can come from virgin sources. 3.1.4 WRS-M4D752-B3 must contain 50% recycled content as defined by WRS-M99P42-A1
9、 (post-consumer and/or post industrial recyclates and repolymerised recycled materials). The remaining portion of the material can come from virgin sources. ENGINEERING MATERIAL SPECIFICATION WSS-M4D752-B1 WRS-M4D752-B2/B3 Copyright 2013, Ford Global Technologies, LLC Page 2 of 6 3.1.5 The use of re
10、grind is permitted, for economic/environmental reasons, with compliance as indicated in Ford Engineering CAD and Drafting Standard E-4. 3.1.6 Dry as molded: All test values indicated herein are based on material and specimens with moisture content not exceeding 0.2% except where noted (Moisture Cond
11、itioned) (test according to ISO 15512 Method B/ASTM D 6869). All test materials have to be sealed in moisture-proof containers and stored at 23 +/- 2 C for at least 24 h immediately after processing. If the moisture content exceeds 0.2%, conditioning the material for a minimum of 16 h at 40 50 C at
12、a reduced pressure below 133 kPa. Conduct tests in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5% relative humidity. Individual specimens shall not be removed from closed containers until immediately before testing. 3.1.7 Performance Criteria Parts using this specification shall meet the approp
13、riate performance specifications, WSS-M15P50-B. 3.1.8 As specified in WSS-M99P1111-A, paragraph 3.5, 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: Melt Flow Rate Filler Content I
14、mpact Strength, Notched Charpy at 23C 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 1874-2. Specimens shall be as
15、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 Specimen F 80 mm diameter x 3.2 mm S
16、pecimen 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 Temperature 250 265 C (ISO 11357, 10 C/min heating rate) ENGINEERING MATERIAL SPECIFICATION WSS-M4D752-B1 WRS-M4D752-B2/B3 Copyright 2013, Ford Global Technolo
17、gies, LLC Page 3 of 6 3.3.2 Determination of Ash 27-37 % (ISO 3451-4, Method A, Glass Fiber, 1h at 600 +/-50C, test portion 2 to 2.5g) 3.3.3 Density 1.34 1.44 g/cm3 (ISO 1183, Method A) 3.3.4 Tensile Strength at Break 140 MPa, min (ISO 527-1 and ISO 527-2, Specimen A, 5 mm/minute test speed) 3.3.5 T
18、ensile Modulus 7.5 GPa, min (ISO 527-1 and ISO 527-2, Specimen A 1 mm/minute test speed) 3.3.6 Impact Strength Notched Charpy B1 B2/B3 (ISO 179-1/1eA, Specimen D) 3.3.6.1 At 23 +/- 2 C 7.0 kJ/m2 min 5.2kJ/m2 min Report break type Report break type 3.3.6.2 At -40 +/- 2 C 5.0 kJ/m2 min 4.5kJ/m2 min Re
19、port break type Report break type The test specimen must be conditioned for minimum 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. 3.3.7 Heat Defl
20、ection Temperature 235 C min (ISO 75-1 - 30 +/- 2oC to 60 +/- 2 oC, Flow 2.68 E-5 mm/mm/ C 3.4.2 Coefficient of Linear Thermal Expansion; - 30 +/- 2oC to 60 +/- 2 oC, Across Flow 7.76 E-5 mm/mm/ C 3.4.2 Coefficient of Linear Thermal Expansion; 60 +/- 2oC to 120 +/- 2 oC, Flow 1.93 E-5 mm/mm/ C 3.4.2
21、 Coefficient of Linear Thermal Expansion; 60 +/- 2oC to 120 +/- 2 oC, Across Flow 16.46 E-5 mm/mm/ C 3.4.3 Water Absorption 0.9 % 3.4.4 Heat Deflection Temperature 0.45 MPa 250 C 3.4.5 Poissons Ratio 0.40 Ratio 3.4.6.1 Impact Strength Notched Izod At 23 +/- 2 C 9.0 kJ/m2 3.4.6.2 Impact Strength Notc
22、hed Izod At -40 +/- 2 C 7.0 kJ/m2 3.4.7 Flexural Modulus 8.0 GPa 4.2 GENERIC IDENTIFICATION AND MARKING OF PLASTIC PRODUCTS PA66-GF30 (ISO 1043/11469/18064) ENGINEERING MATERIAL SPECIFICATION WSS-M4D752-B1 WRS-M4D752-B2/B3 Copyright 2013, Ford Global Technologies, LLC Page 6 of 6 Table 1: Minimum Sa
23、mple Size Initial Approval New Manufacturing Location for Previously Approved Material Test Minimum Lots Specimens per lot Total Test Specimens Lots Specimens per lot Total Test Specimens 3.1 WSS-M99P1111-A IR, TGA, DSC 1 1 1 per test 3.3.1 Melt Temperature 1 1 1 3.3.2 Filler Content* 3 1 3 1 1 1 3.
24、3.3 Density 1 3 3 3.3.4 Tensile Strength at Break* 3 5 15 1 5 5 3.3.5 Tensile Modulus 1 10 10 1 10 10 3.3.6 Impact Strength Notched Charpy (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 Impact Strength, Notched Charpy Change 1 10 1
25、0 3.3.9 Flammability 1 5 5 3.3.10 Long Term Resistance to Fluids 3.3.10.1 Cooling Agent Resistance 1 10 10 3.4.1 Mold Shrinkage 1 5 5 1 5 5 3.4.2 Coefficient of Linear Thermal Expansion (per condition) 1 3 3 3.4.3 Water Absorption 1 3 3 3.4.4 Heat Deflection Temperature 1 2 2 3.4.5 Poissons Ratio 1
26、5 5 3.4.6 Impact Strength, Notched Izod (per condition) 1 10 10 3.4.7 Flexural Modulus 1 10 10 * For these requirements, the 3 Sigma value from the raw data is used to set the requirement max or min. 5. SUMMARY OF REVISIONS 2013 07 04 Formatted WSS-M4D752-B1: square4 The Glass Fiber Content was 27.5-32.5% square4 The Density was 1.34-1.40g/cm3 square4 The Tensile Strength was 145 MPa square4 Long Term Resistance to Fluids (continuous use) was -25% change Added WRS-M4D752-B2 and B3 Updated section 3.1 2011 03 17 Completely revised. Added Table 1.
