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    FORD ESB-M2D362-A-2006 POLYURETHANE FOAM MOLDED TO BE USED WITH FORD WSS-M99P1111-A 《模制聚氨酯泡沫 与标准FORD WSS-M99P1111-A一起使用 》.pdf

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    FORD ESB-M2D362-A-2006 POLYURETHANE FOAM MOLDED TO BE USED WITH FORD WSS-M99P1111-A 《模制聚氨酯泡沫 与标准FORD WSS-M99P1111-A一起使用 》.pdf

    1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 10 17 N-STATUS Replaced by WSB-M2D402-A3 2004 08 27 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.13 Updated para 5 1986 03 26 Released CT01-DC535389-1 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 3

    2、 POLYURETHANE FOAM, MOLDED ESB-M2D362-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a molded, damped polyether urethane foam. 2. APPLICATION This specification was released originally for material used in 1986 Medium Truck seat cushion applications when a dam

    3、ped seat cushion is required. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.3 DENSITY, Core, min 32 kg/m3 (ASTM D 2406, Suffix “W“, Sample Size 7

    4、5 x 75 x 75 mm, cut 7 mm below the top molded surface of the part). 3.4 MATERIAL AND TEST SPECIMEN For all foam samples, the following material properties shall be determined on specimens that are free of skin (unless otherwise noted), voids, and hard spots. Test specimens shall be cut from a plane

    5、whose top surface is approximately 7 mm below the top surface of the sample or part. 3.4.1 Tensile Strength, min 100 kPa (ASTM D 1564, Suffix “T“) 3.4.2 Elongation, min 200% (ASTM D 1564, Suffix “T“) 3.4.3 Heat Aged Tensile Strength, min 90% of original (ASTM D 1564, Suffix “A“) 3.4.4 Tear Resistanc

    6、e, min 350 N/m (ASTM D 1564, Suffix “G“) 3.4.5 Compression Set, normal, max 30% (FLTM BN 115-07) The reported value shall be the average value based on a 5 part evaluation (15 specimens). ENGINEERING MATERIAL SPECIFICATION ESB-M2D362-A Printed copies are uncontrolled Copyright 2006, Ford Global Tech

    7、nologies, LLC Page 2 of 3 Test Method: 75% constant deflection, shall be computed on the original deflection. All set values are obtained on specimens defined by para 3.2 and 3.4 and the 25 mm dimension of the test specimen shall be obtained perpendicular to the part top molded surface. Computed def

    8、lection shall be controlled to +/- 0.05 mm. 3.4.6 Compression Set, autoclave 45% aged, max (FLTM BN 115-07) The reported value shall be the average value based on a 5 part evaluation (15 specimens). Test Method: Determine normal compression set on similar test specimens that were steam autoclave age

    9、d (as defined in FLTM BO 012-01) for 3 h at 19.3 +/- 10.3 kPa and/or 104 +/- 3 C, then dried 3 h at 104 +/- 3 C in a convection oven, followed by 1 h conditioning at 23 +/- 2 C and 50 +/- 5% relative humidity. 3.5 ASSEMBLY REQUIREMENTS Parts submitted must exhibit a 222 N force deflection value (IRG

    10、L) that is 54 +/- 5% of the 4.4 N force deflection value, or a specified on the engineering drawing. 3.5.1 Load Indentation Values and test location as (IRGL value) specified on the engineering (SAE J 815, steps drawing 1-4 only) 3.5.2 Ball Rebound Values and test location as The reported value spec

    11、ified on the engineering shall be the drawing average of five (5) parts tested Test Method: Test location at center of driver side IRGL circle, or as designated on drawing. Ball shall be 50 mm in diameter, case hardened steel (RC 58-68), and shall weigh 535 +/- 3 g. Drop height to top surface of par

    12、t shall be 1270 mm. Rebound height shall be visually determined by means of a suitable scale located adjacent to part. Position part on hard, level, and firm surface, with foam surface horizontal to surface. Test results shall be the average of three (3) drops per part. Record vertical rebounds only

    13、. Rebound height shall be measured by viewing bottom edge of ball, avoiding parallax. (Eye level should be at same level with bottom edge of ball). 3.6 FATIGUE RESISTANCE 35% Height Loss, max at 222 N after 20,000 cycles (FLTM BO 012-04, 375 x 300 x 65 mm thick sample with molded top surface, use a

    14、267 N force shear load roller assembly. Note: A cloth sheeting may be used over top of foam during test to alleviate foam surface tearing) 3.7 ODOR No offensive odor before or after steam autoclave exposure. ENGINEERING MATERIAL SPECIFICATION ESB-M2D362-A Printed copies are uncontrolled Copyright 20

    15、06, Ford Global Technologies, LLC Page 3 of 3 3.8 STAINING None Test Method: Typical light color ESB-M2F126 seating vinyl trim material shall be placed in intimate contact over (100 x 100 mm) specimens of the foam. Expose the assembly for 7 days at 82 +/- 2 C in a convection oven. 3.9 SOLVENT RESIST

    16、ANCE No evidence of foam deterioration Test Method: Immerse specimens of the foam in the following approved fabric and upholstery cleaners for a period of 1 h each at 23 +/- 2 C. . M14J503, petroleum naphthol spirits . ESF-M8B12-A, denatured alcohol 3.10 HYSTERESIS, range 25.0 - 33.0% (FLTM BO 012-0

    17、5, 4.4 N preload, 0.85 mm/s crosshead speed, measure second cycle, 300 x 300 x 100 mm thick, test specimen with top skin from driver side IRGL circle) 3.11 ALLOWABLE DEFECTS The molded foam pads shall meet the requirements for allowable defects as outlined in the engineering specification for seatin

    18、g pads as defined on the engineering drawing. 3.12 FLAMMABILITY In order to comply with Federal Motor Vehicle Safety Standard No. 302, the materials, portions of components, and composites shall not burn or transmit a flame across its surface at a rate of more than 4 in (101 mm) per minute. To demon

    19、strate compliance, the sample size and method of testing shall be in accordance with FLTM BN 024-02. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 Parts Required For B&CE Approval The following i

    20、s required by the Materials & Corrosion Protection Engineering Department for source approval evaluation: . Ten production representative seat cushions . Ten molded 375 x 375 x 100 mm test blocks, molded to the same density and thickness as the parts . Complete test data to the specification, including load indentation test data on 10 molded parts as specified in the engineering drawing. . A Material Compliance Sheet, Form 1464, filled out by the appropriate Ford Purchasing activity.


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