WHIRLPOOL GASKET AND METHOD OF ITS PRODUCTION
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专利名称：WHIRLPOOL GASKET AND METHOD OF ITS PRODUCTION
发明人：YAMAMOTO TSUTOMU,ASHIZAWA
MASAAKI,NISHIMOTO KAZUO,SEKIGUCHI
YUUJI
申请号：JP7037080
申请日：19800527
公开号：JPS576158A
公开日：
19820113
专利内容由知识产权出版社提供
摘要：PURPOSE:To provide a ring-shaped filler which is drawn into a whirlpool together with a metallic bnad plate and will not lose strength or elasticity even above 400 deg.C because the filler is formed of materials where the principal material is expansion vermiculite. CONSTITUTION:A laminated body is formed by laying a soft metal foil 5 on a filler 1 formed into a sheet, which is made of materials where the principal material is expansion vermiculite. A printing cutting process is applied to the laminated body in such a manner as to form a laminated band plate which is crooked into a required shape, and a metallic band plate 3 which have been crooked in advance is drawn into a whirlpool together with the laminated band plate to form a ring. The soft metal foil 5 is laid on the filler 1 to assuredly prevent the occurrence of defects such as breakage or cracks of the filler in printing.
申请人：NIPPON ASBESTOS CO LTD
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