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Method for arranging stainless steel sleeve in large-diameter cylinder block in sleeving way

A stainless steel sleeve, large-diameter technology, applied in the field of surface repair of hydraulic support columns for coal mines, can solve the problems of easy peeling, short service life, easy failure, etc., and achieves the effect of satisfying the finish and size, good adhesion and simple process

Inactive Publication Date: 2015-07-29
BEIJING LANGDE COAL MINE MACHINERY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, the inner wall of the cylinder repaired by the method of inserting stainless steel sleeves on the inner wall is also prone to peeling, and the service life is short, and because the stainless steel sleeve is thin, the interference fit is very easy to fail.

Method used

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  • Method for arranging stainless steel sleeve in large-diameter cylinder block in sleeving way
  • Method for arranging stainless steel sleeve in large-diameter cylinder block in sleeving way

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Embodiment Construction

[0016] The embodiments of the present invention will be further described in detail below.

[0017] The method for the stainless steel cover in the large-diameter cylinder of the present invention, its preferred specific implementation is as follows figure 1 Shown:

[0018] Include steps:

[0019] First, the inner wall of the cylinder is bored, and a stainless steel sleeve is made according to the size of the inner wall of the cylinder after processing, and a triangular thread is processed on the inner wall of the cylinder;

[0020] Then, put the stainless steel sleeve in the cylinder body at normal temperature, carry out hot rolling on the stainless steel sleeve while heating, after the hot rolling is completed, lower it to normal temperature, and then carry out cold rolling on the stainless steel sleeve at normal temperature ;

[0021] Afterwards, the inner wall of the stainless steel sleeve is honed with a honing head.

[0022] The heating temperature of the stainless s...

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Abstract

The invention discloses a method for arranging a stainless steel sleeve in a large-diameter cylinder block in a sleeving way. The method comprises the following steps: firstly, performing boring machining on the inner wall of the cylinder block, manufacturing the stainless steel sleeve according to the size of the machined inner wall of the cylinder block, and machining a triangular thread on the inner wall of the cylinder block; secondly, arranging the stainless steel sleeve in the cylinder body in a sleeving way at the normal temperature, performing hot rolling on the stainless steel sleeve while heating, cooling to the normal temperature after the completion of hot rolling, and performing cold rolling on the stainless steel sleeve at the normal temperature; lastly, honing the inner wall of the stainless steel sleeve by using a honing head. The process is simple, the adhesion between the stainless steel sleeve and the inner wall of the cylinder block is high, and the inner wall of the stainless steel sleeve can meet the requirements of smooth finish and size.

Description

technical field [0001] The invention relates to a method for repairing the surface of a hydraulic support column used in coal mines, in particular to a method for covering a large-diameter cylinder with a stainless steel sleeve. Background technique [0002] After the coal mine hydraulic support column is used for a period of time, the inner surface of the cylinder body will have defects such as scratches and wear, and the surface needs to be repaired. [0003] The repair method in the prior art, one is to carry out iron plating, chrome plating to the inner surface of the cylinder after boring, the inner wall of the cylinder repaired by this method is easy to peel during use; the other method is to use electric welding, gas welding It is formed by boring the inner surface of the cylinder after cladding. This method has a large workload and high cost. [0004] In the prior art, there is also a method of inserting a stainless steel sleeve on the inner wall. After the cylinder...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P6/02
CPCB23P6/02
Inventor 林依男张超贺琦王朝波赵海英李凌云林少凤范超霍福利刘义川周建波
Owner BEIJING LANGDE COAL MINE MACHINERY
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