公开(公告)号：US20180141081A1

公开(公告)日：2018-05-24

申请号：US15857554

申请日：2017-12-28

申请人： AREVA NP ,  NITRUVID

发明人： Bernard DELMAS ,  Dominique HERTZ ,  Jean-Paul LEBRUN ,  Bernard LIS ,  Laurent POIRIER

IPC分类号： B05D5/00 ,  C23C16/513 ,  C23C16/04 ,  C23C16/22 ,  B05D7/14 ,  C23C8/04 ,  B05D1/32 ,  B05C21/00

CPC分类号： B05D5/00 ,  B05C21/005 ,  B05D1/32 ,  B05D7/14 ,  B05D7/146 ,  C23C8/04 ,  C23C16/042 ,  C23C16/22 ,  C23C16/513

摘要： A method for thermochemically treating a part while masking a portion and corresponding mask are provided. The method includes the steps of providing a mask comprising a body with a seat, at least a deformable sealing washer located in the seat, and a tightening bushing, the body having a cavity, placing a first portion of the part in the cavity, a second portion of the part being located in a passage in the sealing washer, and a third portion of the part being located outside the mask, moving the tightening bushing to its tightened position so that the sealing washer is deformed and applied against the second portion of the part, and applying a thermochemical treatment to the third portion of the part.