专利名称：METALLIC SLEEVE FOR BRIDGING PIPE LEAKAGE SECTION女户
发明人：GIYUNTAA BEERO,YAAKOPU RUSU
申请号：JP17470691
因为用英语怎么说申请日：19910620
公开号：JPH04231786A
公开日：
哈登通缉令
19920820九年级英语教学计划
he专利内容由知识产权出版社提供les mirables
metro station
摘要：PURPOSE: To provide a metallic sleeve capable of connecting it to a pipe without leakage and without welding by making the metallic sleeve in a multilayer structure where individual layers are quentially laminated. CONSTITUTION: A metallic sleeve for bridging a pipe leaking point and installed on an inner surface of a pipe under an expansion technique is made in a multilayer structure where metallic sleeves 5, 5a are made by quentially laminating individual layers 6, 7, 8, and a total of thickness of all layers is made to be previously decided thickness of the metallic sleeves 5, 5a. The maximum profile height of outer surface roughness of each of the layers 6, 7, 8 is specified as 0.1 mm, and hardness of an outer surface of each of the layers 5, 6, 7 is made larger than hardness of the pipe and hardness of an inner peripheral surface of each of the layers 6, 7, 8. As a bush to form each of the layers is thin, it is possible to reduce force required for expansion, spring-back becomes small and formation of a gap is prevented.
汉高祖刘邦墓
申请人：AA BEE BEE REAKUTORU GMBH
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