1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 02 2012 01 18 N Status No replacement named N. Benipal, NA 2006 08 24 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.8 and 4 1988 04 22 Released NE01-E-10000474-010 J. C. Webster Controlled document at www.MATS Copyright 2012, Ford Global Tech
2、nologies, LLC Page 1 of 2 BATT, CERAMIC FIBER, THERMAL INSULATOR WSE-M12G85-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a flexible insulating batt composed of a blend of alumina-silica ceramic fibers with an acrylic binder suitable for high temperature insu
3、lation up to 1260 C. 2. APPLICATION This specification was released originally for a material used for a thermal insulator in the catalytic converter. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION M
4、ATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.3 CONSTRUCTION This batt is composed of mineral fibers formed into a continuous web by a paper-making process (Fourdrinier) to provide a uniform insulating s
5、urface. 3.4 COMPOSITION Ceramic Fibers and Other Oxides 88 - 94 Acrylic Binder 6 - 12% Test Method: Cut 10 g of sample into a previously ignited porcelain crucible. Condition at 102 +/- 3 C for 3 h. Record the weight. Heat in a muffle furnace at 980 +/- 28 C for 4 h. Cool, weigh, and calculate % bin
6、der on basis of weight loss. Calculate % mineral fiber on basis of retained weight. Composition of ceramic fibers and other oxides: Al203 57 - 62% Si02 38 - 43% Na20 Less Than 0.1% Fe203 Less Than 0.1% 3.5 BASIS WEIGHT AND THICKNESS (ASTM D 646/ISO 536) THICKNESS* BASIS WEIGHT BASIS WEIGHT mm g/m2 k
7、gm/279 m2 1.4 2.3 365 - 609 102 - 170 *At 55.2 kPa ENGINEERING MATERIAL SPECIFICATION WSE-M12G85-A Copyright 2012, Ford Global Technologies, LLC Page 2 of 2 3.6 HEAT STABILITY, max Shrinkage at 980 C 1.7% Test Method: Cut two strips 305 x 25 mm from the center of the specimen, one in each direction.
8、 Measure the strips to the nearest 0.25 mm. Place strips in a muffle furnace for 4 h at 980 +/- 28 C. Cool specimen to 23 +/- 2 C and measure the strips. Calculate the heat shrinkage from the change in length. 3.7 THERMAL CONDUCTIVITY, W/M/C, max (ASTM C 177, plied to 13 mm thick sample) 538 C mean
9、temperature K = 0.11 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 CONSTRUCTION Fiber diameter 2 - 4 micrometers Fiber length (max) 25 mm 5.2 THERMAL CONDUCTIVITY (ASTM C 177) W/M/C Mean Temperature “K“ Factor 316 C 0.065 427 C 0.081 538 C 0.097 649 C 0.115 760 C 0.137
