1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 08 26 N-STATUS Replaced by WSS-M4D968-B1 V. Cerato, EU 2006 07 25 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.8, 3.9 & 4 2001 11 12 Activated J. Crist, D. Whyte Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC P
2、age 1 of 4 POLYAMIDE (PA) 6, HEAT STABILIZED 30% GLASS WSS-M4D968-A FIBER/MINERAL REINFORCED, MINIMUM 25% PCR AND/OR PIR CONTENT NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a heat stabilized 10% glass fiber and 20% mineral reinforced polyamide 6 molding compo
3、und, containing a minimum of 25% post consumer and/or post industrial recycled content. 2. APPLICATION This specification was released originally for material used for engine NVH covers. NOTICE: This material absorbs and retains moisture. Part design and tolerances must accommodate changes in part d
4、imensions and physical properties due to moisture absorption or loss in the service/assembly environment. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producer
5、s must conform to the Companys Standard Requirements For Production 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. 3.3 CONDITIONING AND TEST CONDITIONS All test values indicated herein are based
6、on material and specimens with moisture content not exceeding 0.2% (test according to ISO 960, Method A). All test values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5% relative humidity for not less than 24 h prior to testing and tested und
7、er the same conditions unless otherwise specified. 3.4 MOLDING COMPOUND (s) 3.4.1 Filler Content 28 - 32% (ISO 3451/4, test temperature 600 +/- 25 C, test portion 1 g) 3.4.2 Melt Temperature, min 210 C (ISO 3146, Method B) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D968-APrinted copies are uncontrolled
8、 Copyright 2010, Ford Global Technologies, LLC Page 2 of 4 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 min x 10 x 4.0 +/-0.2 mm (
9、ISO 3167, Type 1A) 60 x 60 x 4.0 +/-0.1 mm (ISO 294-3) 355 x 100 x 1.0 +/-0.1 mm (ISO 3795) Test specimens A, shall be molded using molding conditions defined in ISO 1874-2. Specimens with shorter dimensions shall be cut from the center portion of test specimen A. No annealing is allowed. 3.5.2 Dens
10、ity 1.32 - 1.42 g/cm3(ISO 1183, Method A) (s) 3.5.3 Tensile Strength at Max Load, min 110 MPa (ISO 527-1 & ISO 527-2, 150 x 10 x 4.0 +/- 0.2 mm specimen, 5 mm/minute test speed) (s) 3.5.4 Flexural Modulus, min 7.1 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/min test speed, 64 mm support sp
11、an) (s) 3.5.5 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.5.1 At 23 +/- 2 C 3.1 kJ/m23.5.5.2 At -40 +/- 2 C 2.2 kJ/m2The test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact test. Low t
12、emperature testing shall be done within the cold box, if not possible, test can be conducted outside, but within 5 s. (s) 3.5.6 Heat Deflection Temperature, min (ISO 75-1 & ISO 75-2, 80 x 10 x 4.0 +/- 0.2 mm specimen, flatwise) 3.5.6.1 At 1.82 MPa 187 C 3.5.6.2 At 0.45 MPa 210 C ENGINEERING MATERIAL
13、 SPECIFICATIONWSS-M4D968-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 4 3.5.7 Heat Aging Performance (ISO 188, 150 +/- 50 air changes/h, 1000 h at 140 +/- 2 C. After heat aging test specimens are to be conditioned in a desiccator for 3 - 5 h at 23 +/- 2 C.
14、 Unaged property values shall be determined at the time of the aged properties determination) 3.5.7.1 Impact Strength, Izod Change +/- 25% (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for
15、 material approval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 3.7 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h and 16 h) Fog Number, min 90 Formation of clear film, droplets or crystals is cause for rejection. 5. GENERAL INFORMATION The informati
16、on given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 2.0 - 4.0-5/C (ASTM D 696) 5.2 MOLD SHRINKAGE (ISO 294-3, approx. 60 x 60 x 2.0 +/- 0.1 mm injection molded specimen) 5.2.1 Molding Shrinkage, ma
17、x After 48 h at 23 +/- 2 C 1.0% 5.2.2 Post Shrinkage, max (Separate specimens required for each test) After 48 h at 80 C 0.2% After 30 minutes at 120 C 0.2% 5.3 WATER ABSORPTION 0.6 - 1.2% (ISO 62, 24 h, 24 h, 50 +/- 1 mm diameter, 3.2 +/- 0.2 mm thick specimen) ENGINEERING MATERIAL SPECIFICATIONWSS
18、-M4D968-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 4 5.4 IMPACT STRENGTH, IZOD, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens minimum) 5.4.1 After Moisture Conditioning 8.0 kJ/m2The notched specimens shall be immersed for 48 h in disti
19、lled water at 50 +/- 1 C and subsequently conditioned for 1 h at 23 +/- 2 C and 50 +/- 5% relative humidity prior to test and tested under the same conditions within 1 h. 5.5 MODULUS OF ELASTICITY 8.0 GPa (ISO 527-1 & ISO 527-2, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, test speed: 1 mm/minute) 5.
20、6 IMPACT STRENGTH, CHARPY, min (ISO 179/1eA, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 5.6.1 At 23 +/- 2 C 4.0 kJ/m25.6.2 At -40 +/- 1 C 3.5 kJ/m2The 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 5.7 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES SAE PA6 - (GF+M) 30
