Dimension repairing tool clamp and repairing method for indissolvable bearing part
A repair method, a technology for tooling and fixtures, applied in the direction of bearings, electrolytic components, shafts and bearings, etc.
Pending Publication Date: 2022-08-09
AECC AERO SCI & TECH CO LTD
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Problems solved by technology
[0006] In view of this, the embodiment of the present application provides a size repair fixture and repair method for indecomposable bearing parts. The repair method achieves good bonding force and high hardness, and meets the requirements of the working environment of the parts. At the same time, the present invention can also be applied to Decompose bearing repair dimensions to solve urgent problems in industrial production
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[0047] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
[0048] The embodiments of the present application are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. The present application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments may be combined with each other under the condition of no conflict. Based on the embodiments ...
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Abstract
The invention provides a size repairing tool clamp and method for an indissolvable bearing part. The tool clamp comprises a chromium plating anode groove, a guide rod, an upper cover plate, a lower cover plate and a hook. The repairing method comprises the following steps: part pretreatment: part acceptance, part polishing and surface oil stain removal are included; shielding protection; a tool clamp is adopted for mounting and hanging; the part is cleaned after being subjected to oil removal through a water-based cleaning agent; preheating, anodic corrosion, impact chromium plating and chromium plating are conducted on the part, when the chromium plating time reaches the time specified by a process chart, the part is taken out, and the size of a plating layer is measured after cleaning; primary washing is carried out after chromium plating, the tool clamp is removed, secondary washing is carried out, and then the shielding protective agent is removed; the part is subjected to oil sealing in first lubricating oil; and hydrogen removal is conducted in second lubricating oil within one hour after chromium plating, and room temperature cooling is conducted under the natural condition. By means of the treatment scheme, the accuracy of the repair size of the bearing part is improved.
Description
technical field [0001] The present application relates to the technical field of surface treatment, and in particular, to a dimensional repairing fixture and a repairing method for a non-decomposable bearing part of an aero-engine. Background technique [0002] Aero-engine bearing parts need to be dimensionally repaired due to wear during use, but for some bearings, they are composed of inner steel sleeves, cages and balls, and the parts are connected by riveting, which cannot be decomposed. Its shape and structure are complex. For such non-decomposable bearings, chemical treatment technology is used to repair the size. The non-plated surface has copper alloy and balls, which are easily corroded in chemical solutions. The shielding protection of the non-plated surface during the chrome plating process is very important. difficulty. At the same time, for bearing parts, due to the high dimensional accuracy of such parts, in order to avoid deformation of the parts caused by cl...
Claims
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IPC IPC(8): C25D17/00C25D17/08C25D21/12C25D5/48C25D5/34C25D3/04C25D7/10
CPCC25D17/00C25D17/08C25D21/12C25D5/34C25D5/48C25D3/04C25D7/10Y02P10/20
Inventor 陈建红潘娜黎红英吴名越张萍徐保军李青霞
Owner AECC AERO SCI & TECH CO LTD