Method for straightening deformation of machine accessories

A technology of mechanical parts and deformation stress, which is applied in the field of correcting stress deformation generated by mechanical parts, which can solve problems such as deformation correction of mechanical parts, and achieve the effect of eliminating stress residues

Inactive Publication Date: 2014-10-01
WUXI WEIHAIDA MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In order to solve the problem of correcting the deformation of mechanical parts, the present invention provides a method for correcting the deformation of mechanical parts

Method used

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Embodiment Construction

[0021] The method for correcting the deformation of mechanical parts according to the embodiment of the present invention includes:

[0022] First check whether there is residual stress or new stress in the deformation of the part. If there is residual stress, remove the residual stress by heating; the purpose of this step is to eliminate the residual stress of the part itself due to deformation as much as possible. The method makes the parts no longer have residual stress, and prepares for the later correction, restoration and repair; the above-mentioned heating method is the most commonly used method at present.

[0023] Then, according to the use environment of the parts, restore the use environment parameters, so that the mechanical parts can be repaired in the environment where deformation occurs. In this embodiment, the environmental parameters generally refer to conditions such as temperature, humidity, stress, etc., especially for the deformation of parts. Parameters w...

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Abstract

The invention discloses a method for straightening deformation of machine accessories. The method comprises the steps of: firstly checking whether a deformed component has a residual stress or a new stress, and if the residual stress exist, eliminating the residual stress by heating; restoring parameters of an operating environment according to the operation environment of the component so as to enable the machine component to restore in the case of deformation; applying a reversed deformation stress to the deformed part of the component; gradually increasing the deformation stress, and sustaining for a period of time after the stress is increased at each time; then detecting whether a new stress is generated, and when the new stress is generated, placing the component in a high-temperature condition until the new stress is eliminated. According to the method for straightening deformation of machine accessories, the deformation of the components can be straightened, and residual stress can be eliminated in a straightening process, and meanwhile the worn parts of the components can be repaired by a repairing method, and thereby the components can be reused.

Description

technical field [0001] The invention relates to a method for correcting deformation of mechanical parts, which belongs to a method for correcting stress deformation generated by mechanical parts. Background technique [0002] The deformation of parts during the use of mining machinery parts is inevitable. Therefore, during the overhaul of mining machinery, it is not only possible to check the wear of the mating surface, but also to carefully check and repair the mutual position accuracy. Especially for the deformation of mining machinery for the first overhaul, attention should be paid to inspection and repair, because the deformation of parts under the action of internal stress is usually completed within 12-20 months. [0003] 1. Working stress When the working stress generated by internal and external loads exceeds the yield limit of the part material, the part will be permanently deformed. [0004] 2. As the temperature rises, the atomic thermal vibration of the metal m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P6/00C21D8/00
CPCB23P6/00C21D8/00Y02P10/20
Inventor 黄铁军
Owner WUXI WEIHAIDA MACHINERY MFG
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