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Method of preventing local wear and erosion of impeller machine

A technology of partial wear and impeller machinery, which is applied to mechanical equipment, machines/engines, liquid fuel engines, etc., and can solve problems such as cavitation and surface wear

Inactive Publication Date: 2006-05-10
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of local surface wear and cavitation in impeller machinery such as fans and water pumps, and provide a protective method for wear resistance and cavitation

Method used

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  • Method of preventing local wear and erosion of impeller machine
  • Method of preventing local wear and erosion of impeller machine
  • Method of preventing local wear and erosion of impeller machine

Examples

Experimental program
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Embodiment Construction

[0011] This method is described in conjunction with accompanying drawing: method comprises the following steps:

[0012] 1) by figure 1 As shown, clean the metal mesh 1 with a thickness of 0.1-0.8mm, press it into the polymer material 2 by hot pressing, and bond it with the polymer material. The polymer material layer 1 reinforced by the metal mesh A thin layer of wear-resistant and cavitation-resistant reinforced polymer material is formed on one side, and a metal mesh with a thickness of 0.1-0.8mm is exposed on the other side. The polymer material can be ultra-high molecular weight polyethylene, high-density polyethylene, etc., and the metal mesh is steel wire. Mesh, copper wire mesh or aluminum wire mesh, etc., it is better to use steel wire mesh;

[0013] 2) Brush the metal surface to be anti-corrosion and clean it with acetone;

[0014] 3) by figure 2 As shown, the metal mesh 1 exposed on the side of the polymer material is pasted on the metal surface 4 to be protecte...

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Abstract

The invention relates to a wear-resistant and cavitation-resistant protection method for the local surfaces that are easy to wear and cavitation in impeller machinery such as fans and water pumps. Into the polymer material, one side forms a thin layer of wear-resistant and cavitation-resistant reinforced polymer material veneer, and the other side is exposed to a certain thickness of metal mesh; 2) The metal surface to be anti-corrosion is roughened and cleaned with acetone ; 3) The metal mesh exposed on the side of the veneer thin layer is pasted on the metal surface of the impeller machine to be protected by epoxy resin. Due to the thin layer of reinforced polymer material veneer, and its surface is smooth, it has the characteristics of wear resistance and cavitation resistance. The metal mesh exposed outside the polymer material layer is bonded to the metal to be protected with epoxy resin The surface is very firmly bonded, so this method can prevent cavitation and wear on the local metal surface of the impeller machinery. This method can also be used to protect the surface of tanks, tanks, etc. that store corrosive media.

Description

technical field [0001] The invention relates to a wear-resistant and cavitation-resistant protection method for protecting the local surfaces that are prone to wear and cavitation in impeller machinery such as fans and water pumps. Background technique [0002] In impeller machinery such as fans and water pumps, local surface wear and cavitation are particularly serious, and even the entire equipment is scrapped, which greatly affects the safe and economical operation of pumps and fans. Therefore, it is particularly important to strengthen anti-cavitation and anti-wear protection for rotating machinery such as pumps and fans. However, no special protective measures have been taken for these surfaces for many years. The paint has a certain anti-wear effect, and the company's 1341 paint is effective against slight cavitation. But failed to solve the problem fundamentally. Contents of the invention [0003] The purpose of the present invention is to provide a wear-resistant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/66
Inventor 杨俭安
Owner SHANGHAI INST OF TECH
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