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    FORD ESA-M4D359-A2-2012 POLYBUTYLENE TEREPHTHALATE (PBT) EXTRUSION MOLDING COMPOUND TO BE USED WITH FORD WSS-M99P1111-A (Shown on FORD ESA-M4D359-A1).pdf

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    FORD ESA-M4D359-A2-2012 POLYBUTYLENE TEREPHTHALATE (PBT) EXTRUSION MOLDING COMPOUND TO BE USED WITH FORD WSS-M99P1111-A (Shown on FORD ESA-M4D359-A1).pdf

    1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 6 2012 07 23 Revised Added Summary of Revisions 2012 06 26 2010 06 11 N Status A1 - Replaced by WSS-M4D359-C1 A. Pan, APA A2 - Replaced by WSK-M4D639-A A. Pan, APA 1982 04 02 Activated CBM2-892366-C5 L.R.Kindt Controlled document at www.

    2、MATS Copyright 2012 Ford Global Technologies, LLC Page 1 of 2 POLYBUTYLENE TEREPHTHALATE (PBT) NOT TO BE USED FOR NEW DESIGN ESA-M4D359-A1 INJECTION MOLDING COMPOUND POLYBUTYLENE TEREPHTHALATE (PBT) NOT TO BE USED FOR NEW DESIGN ESA-M4D359-A2 EXTRUSION MOLDING COMPOUND 1. SCOPE The materials defined

    3、 by these specifications are injection moldable or extrusion grades of polybutylene terephthalate polyester based thermoplastics containing no fillers or reinforcements. 2. APPLICATION ESA-M4D359-A1: This specification was released originally for material used for radio push buttons and turn and eme

    4、rgency signal switch assemblies. ESA-M4D359-A2: This specification was released originally for material used for parking brake cable liners and coating. Note: Material defined by the ESA-M4D359-A1 replaces and is same as former ESA-M4D359-A. Existing drawings specifying ESA-M4D359-A do not require r

    5、evision to reflect this new classification. 3. REQUIREMENTS Requirements shall apply to both the A1 and A2 materials unless otherwise noted. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Mate

    6、rials (WSS-M99P1111-A). 3.2 MOLDED TEST SPECIMENS 3.2.1 Melting Point, min 216 C (Test Method: Differential Thermal Analysis, 20 C/minute heating rate) 3.2.2 Specific Gravity 1.29 - 1.33 (ASTM D 792) 3.2.3 Water Absorption, max 0.10% (ASTM D 570) 3.2.4 Tensile Strength, min (ASTM D 638) ESA-M4D359-A

    7、1 52 MPa ESA-M4D359-A2 47 MPa ENGINEERING MATERIAL SPECIFICATION ESA-M4D359-A1/A2 Copyright 2012, Ford Global Technologies, LLC Page 2 of 2 3.2.5 Flexural Strength, min 69 MPa (ASTM D 790) 3.2.6 Flexural Modulus, min 2300 MPa (ASTM D 790) 3.2.7 Impact Strength, Izod, min (ASTM D 256) Notched 32 J/m

    8、Unnotched No break 3.2.8 Heat Deflection Temperature, min (ASTM D 648) At 0.45 MPa 121 C At 1.82 MPa 54 C (FLTM BO 006-02) 3.2.9 Ash, max 2.0% 3.3 INJECTION MOLDED PARTS 3.3.1 Specific Gravity 1.29 - 1.33 (ASTM D 792) 3.3.2 Ash, max 2.0% (FLTM BO 6-2) 3.4 EXTRUDED PARTS, ESA-M4D359-A2 Addition of ot

    9、her polymers up to 10% maximum is permitted on extruded parts to meet the elongation requirements. 3.4.1 Elongation, min 200% (FLTM BO 132-1) 3.4.2 Heat Aged, Elongation, min 200% (FLTM BO 132-1, heat aging 1 h at 130 C) 4. GENERAL INFORMATION The information given below is provided for clarificatio

    10、n and assistance in meeting the requirements of these specifications. A wide variation in Melt Flow Rate value exists among the four injection molding grade materials approved for this application to which attention should be directed when molding conditions are chosen. At 250 C with a 2.16 kg, load

    11、 values of 15 to 20 g/10 min were recorded for two suppliers while polyesters from two additional suppliers yielded values from 50 to 55 g/10 minutes. 4.1 MATERIALS IDENTIFICATION FOR RECYCLING PURPOSES PBT ENGINEERING MATERIAL SPECIFICATION ESA-M4D359-A1/A2 Copyright 2012, Ford Global Technologies,

    12、 LLC Page 3 of 2 5. SUMMARY OF REVISIONS 2012 07 23 Added Summary of Revisions 2010 11 19 Re-activated A1. 2010 06 11 N-Status A1 and A2. A2 replaced by WSK-M4D639-A 2007 05 31 Reformatted 1995 11 09 Part Ash was 0.1%. Revised title and added Quality System paragraph 1984 07 09 Revised A1 and A2 1982 04 02 Activated A1 and A2. A1 replaced ESA-M4D359-A released 1974 08 09


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