1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2005 08 31 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.8, 3.9 & 4 1994 11 02 Released EP00E10348615000 K. Gerhards Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 1 of 5 POLYAMIDE 11 (PA11), RIGID, WSK-M4D613-A
2、2 HEAT STABILISED MOLDING COMPOUND 1. SCOPE The material defined by this specification is a rigid, heat stabilized type 11 polyamide molding compound. 2. APPLICATION This specification was released originally for material used for quick fit connectors. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR P
3、RODUCTION MATERIALS Material suppliers and part producers 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 TES
4、T CONDITIONS All test values indicated herein are based on material and specimens with moisture content not exceeding 0.2% (test according to ISO 960, Method B). All test materials immediately after processing have to be sealed in containers that are impermeable to water vapor. If the moisture conte
5、nt exceeds 0.2%, condition the material for a minimum of 16 h at 40 - 50 C at a reduced pressure below 133 Pa. 3.4 MOLDING COMPOUND (s) 3.4.1 Melt Temperature 184 - 192 C (ISO 3146, Method C, 10 C/min heating rate) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specifi
6、ed 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 (Tensile Bar, ISO 3167) B. 120 x 10 x 4.0 +/- 0.2 mm ENGINEERING MATERIAL SPECIFICATIONWSK-M4D613-A2Printed copies are uncontrolled Copyright 20
7、05, Ford Global Technologies, LLC Page 2 of 5 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 1.03 - 1.05 g/cm3(ISO 1183, Method A) (s) 3.5.3 Tensile Stre
8、ngth at Yield, min 36 MPa (ISO R 527, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/min test speed) (s) 3.5.3.1 Elongation at Yield, min 20% (Test Method according to para 3.5.3) (s) 3.5.4 Flexural Modulus, min 1.05 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/min test speed, 64 mm supp
9、ort span) 3.5.5 Shear Modulus at 23 C 372 - 558 MPa (ASTM D 4065, forced constant amplitude, 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. Specimen length between clamps 35-40 mm. Soak time at each temperature int
10、erval - 3 minutes minimum) Additionally, a Shear Modulus versus Temperature curve shall be plotted for -50 to +120 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 5. (s) 3.5.6 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2
11、mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 15 kJ/m23.5.6.2 At -40 +/- 1 C 7.5 kJ/m2The test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact test. Low temperature testing shall be done within the cold box. (s) 3.5.7 Heat Deflecti
12、on Temperature, min (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, edgewise, 0.32 +/- 0.01 mm deflection) 3.5.7.1 At 1.80 MPa 44 C 3.5.7.2 At 0.45 MPa 130 C ENGINEERING MATERIAL SPECIFICATIONWSK-M4D613-A2Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 3 of 5 3.5.8 He
13、at Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 130 +/- 2 C. After heat aging test specimens are to be conditioned in a desiccator for 3 - 5 h at 23 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.8.1 Tensile Strengt
14、h at Max Load Change +/- 25% (Test Method per para 3.5.3) 3.6 FOGGING (FLTM BO 116-03, 3 h at 100 C heating, 21 C cooling plate) Fog Number, min 90 Formation of clear film, droplets or crystals is cause for rejection. 3.7 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size require
15、d for material approval is 355 x 100 x 1.0 +/- 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 8 - 12-5/ C (ASTM E 831 (TMA), t
16、emperature range -30 to +30 C) 5.2 MOLD SHRINKAGE (ISO 2577, approx. 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 0.9 - 1.3% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.07 - 0.8% . After 30 min at
17、 120 C 0.03 - 0.16% ENGINEERING MATERIAL SPECIFICATIONWSK-M4D613-A2Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 4 of 5 5.3 WATER ABSORPTION 0.24 - 0.28% (ISO 62, 24 h immersion, 50 +/- 1 mm diameter, 3.2 +/- 0.2 mm thick specimen) 5.4 RECYCLING CODE PA11 ENGINEERING MATERIAL SPECIFICATIONWSK-M4D613-A2Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 5 of 5
