1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2011 03 01 N-Status No replacement named A Pan, APA 2005 09 15 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.7, 3.8 & 4 1989 01 18 Released SM/EQ0972 K. Gerhards Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC P
2、age 1 of 4 POLYPHENYLENE ETHER + POLYAMIDE (PPE+PA) WSK-M4D623-A BLEND MOLDING COMPOUND, IMPACT MODIFIED NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a molding compound based on polyphenylene ether-polyamide (PPE+PA) blend, impact modified. 2. APPLICATION This
3、 specification was released originally for material used for painted hub caps. NOTE: The material must not be used for parts exposed to long term usage in temperatures above 70 C. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD
4、REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 MOLDING COMPOUND 3.4.1 Melt Flow Rate 10 - 20 g/10 min (ISO 1133/ASTM D 1238, 280 +/- 0.5 C, 5.0 kg) The material shall be dri
5、ed for 4 h minimum at 110 - 115 C in a mechanical convection oven immediately preceding the test. 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 requ
6、ired: A. 150 min x 10 x 4.0 +/- 0.2 mm (Tensile Bar, ISO 3167) B. 120 x 10 x 4.0 +/- 0.2 mm Specimens with shorter dimensions shall be cut from the center portion of the test specimen A and/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. 3.5.2 Density 1.05 - 1.15 g/
7、cm3 (ISO 1183, Method A/ASTM D 792, Method A1) ENGINEERING MATERIAL SPECIFICATION WSK-M4D623-A Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 2 of 4 3.5.3 Tensile Strength at Yield, min 45 MPa (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/m
8、in test speed) 3.5.3.1 Elongation at Break, min 50% (Test Method according to para 3.5.3) 3.5.4 Flexural Modulus, min 1.4 GPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 64 mm support span) 3.5.5 Shear Modulus at 23 C 550 - 830 MPa (ASTM D 4065, forced constant am
9、plitude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Specimen approx. 60 x 10 x 4.0 +/- 0.2 mm cut from the center of specimen A. Additionally, a Shear Modulus vs. Temperature curve shall be plotted for -50 to +210 C temperature range, at 5 C minimum intervals. The plotted curve must be
10、within tolerance range shown on page 4. 3.5.6 Impact Strength, Izod, min (ISO 180, Method A/ASTM D 256, Method A, 63.5 x 10 x 4.0 +/-0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 18 kJ/m2 3.5.6.2 At -40 +/- 2 C 7 kJ/m2 3.5.6.3 At 0 +/- 2 C 14 kJ/m2 The test specimens must be con
11、ditioned for minimum of 6 h at the above specified temperature prior to impact test. Low temperature testing shall be done within the cold box, if not possible, test can be conducted outside, but within 5 s. 3.5.7 Vicat Softening Temperature, min (ISO 306, 10 x 10 x 4.0 +/- 0.2 mm specimens. Bath si
12、licone oil, temp. raise 50 +/- 5 C/h. Dial gage reset to 0 after addition of weight.) 3.5.7.1 At 9.8 N 235 C 3.5.7.2 At 49.0 N 195 C All specimens dry as molded. If not tested immediately after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. 3.5.8 Heat
13、 Aging Performance (ISO 188/ASTM D 573, 1000 h at 60 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) ENGINEERING MATERIAL SPECIFICATION WSK-M4D623-A Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 3 of 4 3.5.8.1
14、 Tensile Strength Change +/- 15% (Test Method per para 3.5.3) 3.5.8.2 Impact Strength, Izod Change +/- 20% (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/min The specimen size required for material approval is 355 x 100 x 1
15、.0 +/- 0.1 mm with a smooth surface. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 7 - 10-5/ C (ASTM D 696) 5.2 MOLD SHRINKAGE (ISO 2577, approx. 150 x 100
16、 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage After 48 h at 23 +/- 2 C 1.8 - 2.0% 5.2.2 Post Shrinkage (Separate specimens required for each test) After 48 h at 80 C 1.8 - 2.0% After 30 min at 120 C 1.8 - 2.0% 5.3 MELT VOLUME RATE 8 - 18 cm3/ (ISO 1133/ASTM D 1238, except, 10
17、minutes 280 +/- 0.5 C, 5.0 kg load, extrudate volume in cm3/10 minutes) The material shall be dried for 4 h minimum at 110 - 115 C in a mechanical convection oven immediately preceding the test. 5.4 HEAT DEFLECTION TEMPERATURE 180 C (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen, at 0.45 MPa) ENGINEERING MATERIAL SPECIFICATION WSK-M4D623-A Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 4 of 4
