1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2002 08 19 Activated G. Weber Printed copies are uncontrolled Page 1 of 2 Copyright 2002, Ford Global Technologies, Inc. CERAMIC FIBER MAT, EXPANDED WSS-M96B69-A3 1. SCOPE The material defined by this specif
2、ication is a composite blend of alumina-silica ceramic fibers, unexpanded vermiculite and a latex binder. 2. APPLICATION This specification was released originally for material used as a support and seal for the ceramic monolith used in the catalytic converter. 3. REQUIREMENTS 3.1 STANDARD REQUIREME
3、NTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 COMPOSITION Qualitative determination of the alumina-silica fibers and expanded vermiculite is accomplished by ICP analysis. Quantitati
4、ve analysis is performed by placing 645 mm2 samples in an oven set at 150C for 10-15 minutes. Remove from furnace, weigh samples and record weight. Place dried sample in furnace at 900 C for 10 minutes. Remove from furnace, weigh fired samples and record weight. % Loss on Ignition = (D F)/D) x 100 D
5、 = Dried sample weight F = Fired sample weight ENGINEERING MATERIAL SPECIFICATION WSS-M96B69-A3 Page 2 of 2 Copyright 2002, Ford Global Technologies, Inc. Pour contents onto clean white paper. Manually separate expanded vermiculite from ceramic fibers. Weigh the separated expanded vermiculite. % Ver
6、miculite = (V/D) x 100 V = Expanded vermiculite weight % Alumina + silica fibers = 100 - (% loss on ignition + % vermiculite) 3.2.1 Alumina-silica Fibers, % 46 - 60 3.2.2 Expanded Vermiculite, % 30 - 45 3.2.3 Loss on Ignition, % 6 - 13 3.3 ORIGINAL CHEMICAL PROPERTIES 3.3.1 Alumina-silica Fibers, % Al203 42 - 55 Si02 44 - 57 3.3.2 Expanded Vermiculite, % Al203 7 - 20 Si02 32 - 45 Mg0 17 - 27 Fe203 2 - 12 Other 0 - 27
