1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2009 07 28 N-STATUS No Replacement Named Y. Bankowski, NA 2000 11 28 Revised Rev title, 3.2, updated & renumbered A. Cockman 1964 07 15 Activated AS2-471 E. P. Francis Printed copies are uncontrolled Page 1
2、of 2 Copyright 2009, Ford Global Technologies, Inc. THERMOPLASTIC POLYURETHANE (TPUR) MOLDING COMPOUND ESA-M4D187-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a polyurethane compound that may be processed either by injection or extrusion molding. 2. APPLICAT
3、ION This specification was released originally for material used for brake cable assembly supports. 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 Com
4、panys Quality System Requirements. 3.2 SPECIFIC GRAVITY, min 1.20 (ASTM D 792) 3.3 HARDNESS, DUROMETER D 50 - 60 (ASTM D 2240) 3.4 TENSILE PROPERTIES (ASTM D 412) 3.4.1 Tensile Strength, min 31 MPa 3.4.2 Elongation at Break, min 350 % 3.4.3 Tensile Stress at 100 % Elongation, min 13.8 MPa 3.4.4 Tens
5、ile Set at 50 % Elongation, max 6.0 % (Elongate for 3 minutes, relieve, measure set after 3 minute rest) ENGINEERING MATERIAL SPECIFICATION ESA-M4D187-A Page 2 of 2 Copyright 2009, Ford Global Technologies, Inc. 3.5 TEAR STRENGTH, min 88 kN/m (ASTM D 624, Die C) 3.6 SUPPLIERS RESPONSIBILITY All mate
6、rials supplied to this specification must be equivalent 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 sp
7、ecification requirements, the Supplier shall notify 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 demon
8、strating compliance to this specification, if requested. 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 Mater
9、ials defined by this specification for direct supply 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 requiremen
10、ts or contractual agreements. Suppliers desiring 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 au
11、thorized representative of the test facility, demonstrating full compliance with all the requirements of this specification. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 MATERIALS IDENTIFICATION FOR RECYCLING PURPOSES TPUR
