发明名称 |
PROCESS FOR THE RENEWAL OF WORN LABYRINTH SEALS |
摘要 |
The invention relates to a process and an apparatus for repairing worn labyrinth seal flanges. The seal flanges are repaired by spin-forming them to increase their radial height to at least equal that of an unworn labyrinth seal. A tool for carrying out the process has a pair of parallel rollers displaced a constant distance which is advanced radially inwardly over the seal flange so as to deform the sides and cause the material to creep in a radially outward direction to increase the height of the flange. The flange may be ground to remove any residual defects caused by the spin-forming operation. |
申请公布号 |
IL74653(A) |
申请公布日期 |
1992.11.15 |
申请号 |
IL19850074653 |
申请日期 |
1985.03.20 |
申请人 |
SOCIETE NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION "S.N.E.C.M.A." |
发明人 |
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分类号 |
B21D22/14;B23P6/00;(IPC1-7):B23P6/00;F16J15/447 |
主分类号 |
B21D22/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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