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Hole-expanding compound reinforcing method for corrosion holes

A corroded hole and strengthening treatment technology, which is applied in the field of corroded hole reaming composite strengthening, can solve the problems of high cost, waste of material, and heavy workload, and achieve the effects of low cost, material saving, and fatigue strength recovery

Active Publication Date: 2016-08-17
ACADEMY OF ARMORED FORCES ENG PLA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 2. Replacement repair: high cost, heavy workload, waste of materials

Method used

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  • Hole-expanding compound reinforcing method for corrosion holes
  • Hole-expanding compound reinforcing method for corrosion holes
  • Hole-expanding compound reinforcing method for corrosion holes

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Embodiment Construction

[0031] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention relates to the field of surface damage repairing and reinforcing, in particular to a hole-expanding compound reinforcing method for corrosion holes. The hole-expanding compound reinforcing method comprises the following steps: polishing hole walls of processed holes so as to remove corrosion products; and reducing the roughness of the hole walls, and carrying out hole wall reinforcing treatment by adopting a method of cold-extruding and hole-expanding. According to the hole-expanding compound reinforcing method for the corrosion holes provided by the invention, reinforcing treatment is carried out on the surfaces of the processed holes by virtue of cold-extruding and hole-expanding, so that the method is beneficial for recovering fatigue strength of prior-corroded holes; and parts are not needed to be replaced, so that the process is simple, the cost is low and the materials are saved, and therefore, the hole-expanding compound reinforcing method is especially suitable for prolonging the service life of aged mechanical equipment.

Description

technical field [0001] The invention relates to the field of hole surface damage repair and strengthening, in particular to a hole expanding composite strengthening method for corroded holes. Background technique [0002] All kinds of holes in the structure are the weak parts of corrosion and fatigue, aircraft structure, ship steel structure, large steel structure, drilling platform, steel bridge, transportation and rail beam steel structure, especially in marine atmosphere or coastal areas After corrosion of the steel (aluminum) structure mentioned above, the fatigue strength of the hole is greatly reduced, and the corrosion of the hole wall will not only lead to premature fatigue, but also reduce the fatigue crack threshold. [0003] In order to solve the corrosion problem of the hole structure, the existing maintenance or repair measures are: [0004] 1. Reaming treatment: reaming to remove the corrosion layer. [0005] 2. Parts replacement repair: Large-scale replaceme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D7/12C22F1/00
CPCC21D7/12C22F1/00
Inventor 朱有利侯帅王燕礼许艺许永晗杜晓坤
Owner ACADEMY OF ARMORED FORCES ENG PLA
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