1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2012 11 08 N-STATUS No longer in use. A. Wedepohl, NA 2003 07 24 Revised Para 3.0 inserted; Para 3.1, 3.2, 3.3, 3.16, 3.17, 4 deleted 2000 02 28 Activated S. DeGrood Controlled document at www.MATS Copyright 2012, Ford Global Technologies, In
2、c. Page 1 of 2 MAGNET, PERMANENT, THERMOPLASTIC BONDED, NONORIENTED WSS-M4L5-A4 1. SCOPE NOT FOR NEW DESIGN The material defined by this specification is a thermoplastic bonded, nonoriented barium ferrite magnet. 2. APPLICATION This specification was released originally to define materials used in m
3、agnetic gages. 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). 3.4 MELT TEMPERATURE, C 182 - 186 (ISO 3146/ASTM D 789 or ASTM D 3417) 3.5 SPECIFIC GR
4、AVITY, min 3.70 (ISO 1183, Method A/ASTM D 792) 3.6 ASH 90 +/- 2 (ASTM D 2584) 3.7 HARDNESS, DUROMETER D, min 85 (ISO 868/ASTM D 2240) 3.8 TENSILE STRENGTH, MPa, min 1500 N/cm2 (ISO R 527-1&2/ASTM D 638M) 3.9 FLEXURAL STRENGTH, MPa, min 2750 N/cm2 (ISO 178/ASTM D 790M) 3.10 IMPACT STRENGTH (IZOD), J
5、/m, min 23 (ASTM D 256) 3.11 HEAT DEFLECTION TEMPERATURE, C, min 90 (ISO 75/ASTM D 648, at 0.45 MPa) 3.12 RESIDUAL INDUCTION (BR), I 0.26 - 0.28 (ASTM A 34, at 20 C) 3.13 COERCIVE FORCE (HC), ka/m 20 - 28 (ASTM A 34, at 20 C) 3.14 INTRINSIC COERCIVE FORCE (Hci), ka/m 36 - 45 (ASTM A 34, at 20 C) ENGINEERING MATERIAL SPECIFICATION WSS-M4L5-A4 Page 2 of 2 Copyright 2012, Ford Global Technologies, Inc. 3.15 FINISHED MAGNET FLUX LEVEL, 100% saturated, Gauss 42 52 (ETM # 61024, Fixture # 8G)
