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    FORD WSB-M4D883-A1-2001 ACETAL (POM) COPOLYMER 20% GLASS FIBER REINFORCED MOLDING COMPOUND《20%玻璃纤维增强的乙缩醛共聚物(POM)成型料》.pdf

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    FORD WSB-M4D883-A1-2001 ACETAL (POM) COPOLYMER 20% GLASS FIBER REINFORCED MOLDING COMPOUND《20%玻璃纤维增强的乙缩醛共聚物(POM)成型料》.pdf

    1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2001 06 22 Revised Updated A. Cockman 1993 12 03 Activated NB00I10043054300 LAD BCF M/ J/ Masserant Printed copies are uncontrolled Page 1 of 5 Copyright 2001, Ford Global Technologies, Inc. ACETAL (POM) COP

    2、OLYMER, 20 % GLASS FIBER WSB-M4D883-A1 REINFORCED MOLDING COMPOUND 1. SCOPE The material defined by this specification is a acetal thermoplastic compound based on trioxane, 20 % glass fiber reinforced. 2. APPLICATION This specification was released originally for material used for a seat belt retain

    3、er hook. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.1 QUALITY SYSTEM REQUIREMENTS Material suppliers and part producers must conform to the Companys Quality System Requirements. 3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS I

    4、R spectra and thermograms established for initial approval shall constitute the reference standard and shall be kept on file at the designated material laboratory. All samples shall produce IR spectra and thermograms that correspond to the reference standard when tested under the same conditions. 3.

    5、3 CONDITIONING AND TEST CONDITIONS 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 under the same conditions unless otherwise specified. 3.4 MOLDING COMPOUN

    6、D (s) 3.4.1 Glass Fiber Content 18 - 22 % (ISO 3451/1, Method A) ENGINEERING MATERIAL SPECIFICATION WSB-M4D883-A1 Page 2 of 5 Copyright 2001, Ford Global Technologies, Inc. 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on injec

    7、tion 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 Specimens with shorter dimensions shall be cut from the center portion of the test specimen A and/or B. The specimens shall be prepar

    8、ed according to ISO 294. No annealing allowed. 3.5.2 Density 1.51 - 1.57 g/cm3 (ISO 1183, Method A) (s) 3.5.3 Tensile Strength at Max Load, min 70 MPa (ISO R 527, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, 5 mm/min test speed) (s) 3.5.4 Flexural Modulus, min 4.0 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2

    9、mm specimen, 2 mm/min test speed, 64 mm support span) 3.5.5 Shear Modulus at 23 C 1.25 - 2.09 GPa (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 cl

    10、amps 35-40 mm. Soak time at each temperature interval - 3 minutes minimum) Additionally, a Shear Modulus versus Temperature curve shall be plotted for - 50 to + 150 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 6. ENGINEERING MATERIAL S

    11、PECIFICATION WSB-M4D883-A1 Page 3 of 5 Copyright 2001, Ford Global Technologies, Inc. (s) 3.5.6 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 2.0 kJ/m2 3.5.6.2 At - 40 +/- 1 C 2.3 kJ/m2 3.5.6.3 At - 20 +/- 2 C 2.3 kJ/m2 T

    12、he test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact test. (s) 3.5.7 Heat Deflection Temperature, min (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, 0.32 +/- 0.01 mm deflection) 3.5.7.1 At 1.80 MPa 150 C 3.5.7.2 At 0.45 MPa 155 C 3.5.8 Heat Aging

    13、Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 140 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.8.1 Tensile Strength at Max Load Change +/- 25 % (Test Method per para 3.5.3) 3.5.8.2 Impact Strength, Izod Change +/- 25 % (

    14、Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h and 16 h) Fog Number, min 85 Formation of clear film, droplets or crystals is cause for rejection. ENGINEERING MATERIAL SPECIFICATION

    15、WSB-M4D883-A1 Page 4 of 5 Copyright 2001, Ford Global Technologies, Inc. 3.7 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 3.8 ADDITIONAL REQUIREMENTS Additional requirements for mat

    16、erial and/or manufactured parts may be specified on the Engineering drawing, Engineering parts specification, performance specification, System Design Specification (SDS) and/or Component Design Specification (CDS). 3.9 SUPPLIERS RESPONSIBILITY All materials supplied to this specification must be eq

    17、uivalent in all characteristics to the material upon which approval was originally granted. Prior to making any changes to the material originally approved under this specification, whether or not such changes affect the materials ability to meet the specification requirements, the Supplier shall no

    18、tify the affected Purchasing, and Materials Engineering activities (with reasons) of the proposed changes. Upon notification of the Company, further instructions will be provided. Note: Suppliers should be prepared to provide test data and samples demonstrating compliance to this specification, if r

    19、equested. Substance restrictions imposed by regulations or Company direction applies to the materials addressed by this document. The restrictions are identified in Restricted Substance Management Standard WSS-M99P9999-A1. 4. APPROVAL OF MATERIALS Materials defined by this specification for direct s

    20、upply to the Company must have prior approval. Certain materials subcontracted by part suppliers may also require prior approval. These include materials critical to the Companys business for regulatory, safety, environmental or compatibility requirements or contractual agreements. Suppliers desirin

    21、g approval of their materials shall first obtain an expression of interest from Purchasing, Design or Materials Engineering activity. Upon request, the Supplier shall submit a completed copy of their laboratory test reports, signed by a qualified and authorized representative of the test facility, d

    22、emonstrating full compliance with all the requirements of this specification. ENGINEERING MATERIAL SPECIFICATION WSB-M4D883-A1 Page 5 of 5 Copyright 2001, Ford Global Technologies, Inc. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the req

    23、uirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 5.0E-5/ C (ASTM E 228 or TMA, temperature 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 0.6 % 5.2.2 Post Shrinkage (Separate specimens required for each test) After 48 h at 80 C 0.1 % After 30 min at 120 C 0.1 % 5.3 ELONGATION AT BREAK 2.0 % (Test Method according to para 3.5.3) 5.4 RECYCLING CODE POM-GF20


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