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Method of preventing local wear and erosion of impeller machine

A local wear, impeller machinery technology, applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve cavitation, surface wear and other problems

Inactive Publication Date: 2004-09-08
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
Comparison scheme
Effect test

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 and leave a metal mesh 1 with a thickness of 0.1-0.8mm, press it into the polymer material 2 by hot pressing, and combine it with the polymer material adhesive, and the polymer material layer reinforced by the metal mesh One side forms a thin layer of wear-resistant and cavitation-resistant reinforced polymer material veneer, and the other side is exposed to a metal mesh with a thickness of 0.1-0.8mm. The polymer material can be ultra-high molecular weight polyethylene UHMW-PE, high-density polyethylene, etc. 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 scrub 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 s...

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Abstract

The present invention relates to wear and cavitation erosion preventing protection method for blower, water pump and other vane machines. The method includes the following steps: hot pressing some metal net into polymer material to form one wear and cavitation erosion resisting reinforced polymer material layer on one side and exposed metal layer in certain thickness on the other side; roughening the metal surface to be protected and scrubbing with acetone; and adhering the exposed metal layer of the facing layer with epoxy resin to the surface to be protected. The method forms firm and smooth wear and cavitation erosion resisting surface to protect the vane wheel surface. The method may be used also for the protection of the surface of tank for storing corrosive medium.

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 Applications(China)
IPC IPC(8): F04D29/66
Inventor 杨俭安
Owner SHANGHAI INST OF TECH
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