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Method for using stainless steel sleeve to coat large-diameter cylinder body

A technology with stainless steel sleeves and large diameters, which is applied in the field of surface repair equipment for hydraulic support columns used in coal mines. It can solve the problems of easy failure and scrapped steel sleeves, and achieve the effects of not easy peeling, high reliability, and long life.

Inactive Publication Date: 2015-08-19
BEIJING LANGDE COAL MINE MACHINERY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is: because the stainless steel sleeve is thin and deformed after heating, it is very easy to fail during the red installation process, resulting in the scrapping of the steel sleeve

Method used

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  • Method for using stainless steel sleeve to coat large-diameter cylinder body

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Embodiment Construction

[0015] The embodiments of the present invention will be described in further detail below.

[0016] The method for outsourcing a stainless steel sleeve for a large-diameter cylinder of the present invention, its preferred specific embodiment is as follows: figure 1 shown:

[0017] Include steps:

[0018] First, lathe the outer wall of the large-diameter cylinder, make a stainless steel sleeve according to the size of the outer wall of the large-diameter cylinder, and process triangular threads on the outer wall of the large-diameter cylinder;

[0019] Then, under normal temperature, the stainless steel is sleeved outside the large-diameter cylinder;

[0020] After that, the stainless steel sleeve is rolled while being heated.

[0021] The heating temperature of the stainless steel sleeve is above 723°.

[0022] The wall thickness of the stainless steel sleeve is 1 mm to 2 mm, and the inner wall of the stainless steel sleeve and the outer wall of the large-diameter cylinder...

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Abstract

The invention discloses a method for using a stainless steel sleeve to coat a large-diameter cylinder body. The method for using the stainless steel sleeve to coat the large-diameter cylinder body includes that lathing the outer wall of the large-diameter cylinder body, and manufacturing the stainless steel sleeve in a clearance fit mode according to the size of the outer wall of the large-diameter cylinder body; processing triangular threads in the outer wall of the large-diameter cylinder body, and arranging the stainless steel sleeve at the outside of the large-diameter cylinder body under a normal temperature; rolling the stainless steel sleeve while heating. The method for using the stainless steel sleeve to coat the large-diameter cylinder body is convenient to construct and high in reliability, the restored upright surface is difficult to peel, and the life span is long.

Description

technical field [0001] The invention relates to a surface repairing equipment for a hydraulic support column (cylinder body or piston rod) used in a coal mine, in particular to a method for wrapping a large-diameter cylinder body with a stainless steel sleeve. Background technique [0002] After being used for a period of time, the outer surface of the hydraulic support column for coal mine will have defects such as scratches and wear, and the surface needs to be repaired. [0003] The repair methods in the prior art are: one is to iron and chrome plated the outer surface of the column after turning it, and the outer wall repaired by this method is easy to peel during use; The outer surface is clad and then machined. This method has a large workload and high cost. Another method is to wrap the outer wall with thin stainless steel, but the outer wall of the column repaired by the method in the prior art is also prone to peeling. Short service life. [0004] In the prior art...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P6/00
CPCB23P6/00
Inventor 张超林依男贺琦范超霍福利王朝波刘义川周建波赵海英李凌云林少凤
Owner BEIJING LANGDE COAL MINE MACHINERY
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