Support ring component chromium plating method and shield jig

Abstract

The invention discloses a support ring component chromium plating method and a shield jig. The support ring component is of a cylindrical structure, wherein a groove is formed in the upper end of the support ring component; a chromium plating external circular surface is arranged under the adjacent groove; except for the chromium plating external circular surface is plated with chromium, the other surfaces of the support ring component are not plated with chromium; the jig comprises a protection ring, a lower cover plate, an upper cover plate, and a central rod connected with the upper cover plate and the lower cover plate. The original manual protection mode can be replaced by adopting the special chromium plating jig through the chromium plating method provided by the invention, the workload of an operator is relieved and the operation is convenient and simple. The inner circular surface is protected through the tight coordination of the jig and the spare part and between the spare parts, the chromium leakage phenomenon is prevented and the chromium layer appearance and the protection quality are increased. By adopting the jig provided by the invention, multiple spare parts are one-time serially connected to plate chromium, the processing period of the spare part is greatly shortened and the protection efficiency is increased.

Description

technical field [0001] The invention relates to a chrome-plating method and a special fixture thereof, in particular to a chrome-plating method and a fixture for a cylindrical structure support ring assembly of an aeroengine. Background technique [0002] figure 1 Shown is a structural schematic diagram of a support ring assembly, the support ring assembly has a cylindrical structure, the upper end of the part has a groove 11, the outer circular surface A below the groove 11 needs to be chrome-plated, and the rest of the surface needs to be protected. That is, the inner and outer non-plated surfaces need to be protected. Since the part is a welded component, it is easy to appear that the welding seam (transition zone) cannot be plated with chrome during the chrome plating process, which affects the appearance quality of the chrome layer. [0003] In addition, since the partial outer circular surface of the support ring assembly needs to be chrome-plated, and there is no sp...

AI Technical Summary

Problems solved by technology

Since the part is a welded component, it is easy to appear that the welding seam (transition area) cannot be plated with chrome during the chrome plating process, which affects the appearance quality of the chrome layer

[0003] In addition, since the partial outer circular surface of the support ring assembly needs to be chrome-plated, and there is no special fixture in the prior art, complicated protection procedures are required in production, which takes a long time, and manual protection of the inner hole is difficult and prone to chrome leakage.

During the chrome plating process, due to the edge effect, the chrome layer on the chamfered edge is rough, which affects subsequent processing and engine assembly

Only one part can be processed at a time, resulting in long production cycle and affecting processing efficiency

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