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Protective method for metal surface wearing and stream erosion resistance

A metal surface, cavitation technology, applied to the components of pumping devices for elastic fluids, non-variable-capacity pumps, pump devices, etc., can solve problems such as cavitation and surface wear

Inactive Publication Date: 2008-05-07
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 protection method for wear resistance and anti-cavitation

Method used

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  • Protective method for metal surface wearing and stream erosion resistance
  • Protective method for metal surface wearing and stream erosion resistance

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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, the glass cloth (1) of a certain thickness is pressed into the polymer material (2) by hot pressing, and combined with the polymer material, the side of the polymer material layer reinforced by the grid glass cloth A thin layer of wear-resistant and cavitation-resistant reinforced polymer material veneer is formed, and the other side is exposed to a grid glass cloth with a thickness of 0.1-0.8mm. The polymer material can be ultra-high molecular weight polyethylene UHMW-PE, and the grid glass cloth is glass fiber;

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

[0014] 3) by figure 2 As shown, the grid glass cloth (1) exposed on the side of the polymer material is pasted on the metal surface (4) to be protected through epoxy resin (3).

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Abstract

This invention involves one kind to use in the air blower, impeller machinery and so on in water pump wore the partial metal surface which and the steam eclipses wear-resisting to bear the protection method which the steam eclipses, it including below step: 1) keeps the certain thickness grid glass cloth, presses in in the high polymer material with the thermo-compression method, a side forms wear-resisting bears the steam eclipse enhancement high polymer material cover thin layer, another side has the certain thickness grid glass cloth for the dew; 2) to the metal surface which must guard against corrosion damages, scours cleanly with the acetone; 3) exposes in a cover thin layer side grid glass cloth on the impeller machinery metal surface which glues through the epoxy resin must protect. As a result of uses the enhancement high polymer material cover thin layer, but its surface also is smooth, therefore has the wearability, bears characteristic which the steam eclipses, exposes outside the high polymer material level the grid glass cloth the metal surface which cakes with the epoxy resin must protect, cakes extremely reliably, therefore, this method can play to the impeller machinery partial metal surface guards against the steam to eclipse, guards against the attrition role. This method has been possible to use in to preserve has the corrosive medium the pot, metal surface the and so on trough protection.

Description

technical field [0001] The invention relates to a wear-resistant and anti-cavitation protection method for protecting the local metal surfaces that are easy to wear in impeller machinery such as fans and water pumps. Background technique [0002] In the local metal surfaces of impeller machinery such as fans and water pumps, the wear and cavitation are particularly serious, so that 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 solve the problems of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/66F04D29/02F04D25/08F04D13/06
Inventor 杨俭安
Owner SHANGHAI INST OF TECH
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