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Method for repairing cracks on arcwall face of metalwork

A curved surface and crack technology, applied in the field of mechanical maintenance, can solve problems such as it is difficult to ensure the effective working life of repaired quality objects, and achieve the effect of remarkable technological advancement, strong work reliability and strong practicability.

Active Publication Date: 2007-02-21
上海博士高环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is especially suitable for repairing cracks on the surface of the object that is flat or extremely small, and close to the flat part. If it is used to repair cracks on the curved part of the shell surface, it is difficult to ensure the repair because it cannot produce a uniform clamping effect. Quality and useful working life of the restored item
In short, there is still no good strategy for comprehensively repairing cracks on the curved surface of metal objects

Method used

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  • Method for repairing cracks on arcwall face of metalwork
  • Method for repairing cracks on arcwall face of metalwork
  • Method for repairing cracks on arcwall face of metalwork

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Embodiment Construction

[0046] The present invention will be further described below in conjunction with the accompanying drawings and typical embodiments.

[0047] exist figure 1 , figure 2 , image 3 and Figure 4 Among them, the stitching bolt 1 used in the method for repairing the cracks on the arc surface of the metal object in the present invention consists of a bolt body 3 provided with a stop screw thread 2, a stopper shoulder 5 with stopper teeth 4 and an overrun The control screw head 6 that automatically breaks off is formed; the threaded hole 8 is provided in the center of the sewing screw sleeve 7, the screw sleeve main body 9 that is provided with a stop screw thread 2 on the periphery, the limit card shoulder 10 with the limit card teeth 4 and the super The control screw head 11 that can automatically break off is formed; the arc-shaped repair insert 12 is composed of a main part 12-1 and an auxiliary part 12-2 that match the arc, wherein the main part 12-1 is in the shape of a blo...

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Abstract

A method for repairing the crack on arc surface of metallic object features that an arc profile plate with the copied crack line, temporary installation holes and the central locating holes arranged at intervals, several repairing screw bolts and nuts, and the arc inserts for preventing the extension of crack are used.

Description

technical field [0001] The invention relates to the field of mechanical maintenance, in particular to a method for repairing cracks on the curved surface of metal objects. Background technique [0002] In daily life, some metal objects with poor toughness, such as the furnace body of a large boiler, are prone to cracks and cracks due to poor toughness, and once the cracks occur, they will extend along the trend, become longer and longer Large, and finally lead to cracks, so it is necessary to repair them in time at the initial stage of cracks. The method commonly used in the prior art is to adopt the method for repairing by welding, when utilizing welding, the metal surface around the crack is heated at a high temperature to melt it into one body and eliminate the crack. Because this method of eliminating cracks only repairs the metal surface, the traction force on the two sides of the crack is very small, and it has no effect on improving the internal stress change after t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P6/00
Inventor 姜铉泰李昌勋
Owner 上海博士高环保科技有限公司
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