发明名称 METHOD FOR JOINTING TUBULAR PARTS OF DIFFERENT MATERIALS, MAINLY FOR GUIDE CHANNELS OF NUCLEAR- REACTOR FUEL ASSEMBLIES
摘要 FIELD: assembling pasts, including tubular ones, made of different materials in various industries. SUBSTANCE: proposed method that provides for reliable fixation of stainless steel wire on zirconium pipe, reduced nonuniformity of wire embedding in materials of tubular parts, and elimination of areas with low mechanical and anticorrosion properties includes installation of pre-coiled stainless steel wire 3 on outer surface of zirconium pipe with interference fit on spiral path, Then pipe mounting coiled wire is installed in external stainless steel pipe 1. The latter is rotationally compressed over its outer surface. Amount of interference fit is chosen depending on ratio of inner diameter Dlcw of coiled wire in loose state to inner diameter Dwcw of coiled wire in wound state. This ratio is between 0.73 and 0.84. Diameter d of stainless steel wire is chosen between 0,47.Delta and 0,53.Delta, where Delta - is wall thickness of zirconium pipe. EFFECT: enhanced reliability of joints between tubular parts radioactive environment. 1 cl, 4 dwg
申请公布号 RU2208850(C2) 申请公布日期 2003.07.20
申请号 RU20010123082 申请日期 2001.08.17
申请人 'NYJ ZAVOD";KANTOVA;GUP O KO;NSTRUKTORSKOE BJURO MASH IM I;KANTOVA 发明人 BEK E.G.;FILIPPOV A.V.;ZANIZDRA JU.G.;SOLOUKHIN A.F.;SELIVERSTOVA B.A.;KURYLEV V.I.
分类号 G21C21/00;B23K20/16;F16L13/007;G21C3/33;(IPC1-7):G21C21/00 主分类号 G21C21/00
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