1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 08 06 Revised Updated per WSS-M8P5-A L. Schmalz, NA 1992 10 22 C10252543 Minor Changes, Released E NJK 1992 03 11 C10199491 Released J. Joshi Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, Inc. Page 1 of 2 THREA
2、D, NYLON, THREE PLY, TOP THREAD, TEX 70 WSD-M15H51-D THREAD, NYLON, THREE PLY, UNDERTHREAD, TEX 70 WSD-M15H51-E 1. SCOPE The material defined by this specification is a nylon thread manufactured as a single cord incorporating three separate plies. 2. APPLICATION This specification was released origi
3、nally for material used as a sewing thread used in seat and/or trim assemblies. 3. REQUIREMENTS In addition to the requirements quoted herein, the WSD-M15H51-D material must meet the requirements of the Sewing Thread Performance Specification, WSS-M8P5-C. WSD-M15H51-E underthread must meet the requi
4、rements of the WSS-M8P5-C with the exception of 3.5.2 Tensile after UV exposure and 3.6 Resistance to Fade. 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 APPEA
5、RANCE (FLTM BI 109-01) The color, pattern, and finish shall match the approved Design Center master sample, or shall be as specified on the Engineering Drawing. 3.3 YARN CONSTRUCTION AND DESCRIPTION (ASTM D 1244) The thread is manufactured in one single cord from three separate ends of 23.5 tex f34,
6、 multifilament, bright, high tenacity polyamide type 6.6 yarn. They are twisted together in reverse (Z) direction. 3.4 PHYSICAL REQUIREMENTS 3.4.1 Thread Size, range 70 +/- 6 Tex (ASTM D 204-2) 3.4.2 Tensile Strength 45 N min (ASTM D 204-2) ENGINEERING MATERIAL SPECIFICATIONWSD-M15H51-D WSD-M15H51-E
7、 Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, Inc. Page 2 of 2 3.4.3 Elongation at Break, range 15 - 30% (ASTM D 204-2) 3.4.4 Twist, range 230-420 turns/m (ASTM D 204-2) 5. SUMMARY OF REVISIONS 2009 08 06 Updated 3 Deleted 3.1 3.3 Moved 3.4 to 3.2 Moved 3.5 to 3.3 Moved 3.6 to 3.4 Deleted 3.7 - 5
