Method for repairing damage of non-work surface of roller

A non-working surface and damage repair technology, which is applied in the direction of manufacturing tools, metal processing, metal processing equipment, etc., can solve the problems of high repair cost, high requirements, and technical difficulty, and achieve the effect of reducing dependence and reducing repair cost

Inactive Publication Date: 2012-10-10
XINJIANG JOINWORLD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The invention provides a method for repairing the damage of the non-working surface of the roll, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the requirements of the currently

Method used

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  • Method for repairing damage of non-work surface of roller

Examples

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Example Embodiment

[0021] The following examples and attachments are combined figure 1 To further describe the present invention:

[0022] As attached figure 1 As shown, the method for repairing damage to the non-working surface of the roll is carried out according to the following steps: First step, preheating and heat preservation: after removing the fatigue layer or defect on the surface of the damaged portion of the non-working surface of the roll, the damaged portion is locally heated. During the heating process Insulate the heated part; the second step, welding: After stopping the preheating, weld the damaged part of the non-working surface of the roll at intervals of 5mm to 100mm, and quickly tap the damaged part to restore the damaged part to its original shape as much as possible. Welding; the third step, tempering and heat preservation: after the welding is completed, the welding part is locally heated, and the heated part is kept warm during the heating process; the fourth step, trimmin...

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Abstract

The invention relates to the technical field of repair of non-work surfaces of rollers and particularly relates to a process for repairing the damage of a roller. The process comprises the following steps: firstly, preheating and preserving the heat: after removing a fatigue layer or the defects of the surface of the damaged part of the non-work surface of the roller, locally heating the damaged part and carrying out heat preservation on the heated part during heating; secondly, welding: after stop preheating, welding the damaged part of the non-work surface of the roller at an interval of 5 mm to 10 mm and quickly knocking the damaged part to enable the damaged part to be continuously welded after being recovered to be original shape; thirdly, tempering and preserving the heat: after welding, locally heating the damaged part; and fourthly, trimming. According to the method disclosed by the invention, the damaged part of the non-work surface of a high-crisp and high-hardness alloy roller is repaired by adopting a conventional welding material, welding equipment, thermal treatment equipment and simple thermal treatment process, so that the dependence on the equipment caused by a non-work surface damage process of the roller is reduced and the repair cost is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of roll repair, and relates to a method for repairing damage to a non-working surface of a roll. Background technique [0002] The steel and non-ferrous metal rolling industry uses rolling mills for rolling production. In rolling production, the rolls are in direct or indirect contact with the rolled metal to cause plastic deformation of the metal, which is the main deformation tool of the rolling mill. During the assembly, transportation and use of the roll, it is easy to cause wear, strain, burn, impact deformation, cracking and other damage to the non-working surface due to the inner circle of the bearing, the impact of the end face, cutting or assembling parts. If the damaged part is not repaired in time , Eliminate roll defects. Under the action of high speed, large rolling force and large roll bending force, the internal stress of the roll will increase, resulting in equipment and product losses such a...

Claims

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Application Information

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IPC IPC(8): B23P6/00B23K9/235B23K9/04B23K9/16B23P25/00
Inventor 全明
Owner XINJIANG JOINWORLD CO LTD
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