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Coupling bionic structure for improving erosion resistance of mechanical moving part surface

A technology of mechanical movement and anti-erosion, applied in the field of coupled bionic structures, can solve problems such as high cost, limited mechanical performance, complex manufacturing process, etc., to increase service life, increase erosion wear rate, and improve anti-erosion performance Effect

Inactive Publication Date: 2013-01-23
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The use of new materials to improve erosion resistance is technically difficult, the project period is long, and the cost is high; the improvement of erosion resistance through heat treatment and other modification methods is limited by the mechanical properties of the material itself, and the effect is limited; surface strengthening technology, coating combination Limited strength, easy to fall off, complex manufacturing process, high cost

Method used

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  • Coupling bionic structure for improving erosion resistance of mechanical moving part surface
  • Coupling bionic structure for improving erosion resistance of mechanical moving part surface
  • Coupling bionic structure for improving erosion resistance of mechanical moving part surface

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Embodiment Construction

[0023] see figure 1 , figure 2 with image 3 As shown, it is the first embodiment of the present invention, which is composed of an inner layer B and an outer layer A, the outer layer A is a hard material layer, the inner layer B is a flexible material layer, and the material hardness of the outer layer A is higher than that of the inner layer B material, the inner layer B and the outer layer A are tightly bonded together, the outer layer A has a surface form of parallel grooves 1, and convex hulls 3 are regularly distributed on the ridges 2 of the grooves 1;

[0024] In this embodiment, the hard material of the outer layer A is ABS, the flexible material of the inner layer B is silica gel, the thickness ratio of the outer layer A and the inner layer B is a:b=2, and the thickness of the inner layer B silica gel is 2.3mm. The groove 1 on the surface of the outer layer A presents a V-shaped groove shape, and the grooves are distributed in parallel, and the width of each ridg...

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Abstract

The invention discloses a coupling bionic structure for improving erosion resistance of mechanical moving part surface and relates to a coupling bionic structure of which the erosion resistance of the part surface is designed based on the characteristics of the back of a desert scorpion. The coupling bionic structure consists of an inner layer and an outer layer, wherein the outer layer is a hard material layer, the inner layer is a flexible material layer, the hardness of a material of the outer layer is higher than that of the material of the inner layer, the inner layer and the outer layer are closely combined together, the outer layer has the surface morphology of parallel grooves, convex hulls are regularly distributed on ridges of the grooves, and the thickness ratio of the outer layer to the inner layer is 1-2. Compared with a smooth surface, the erosion wear rate of the coupling bionic structure is increased by 6.0%-32.8%.

Description

technical field [0001] The invention relates to a surface bionic structure, in particular to a coupled bionic structure for improving the anti-erosion performance of the surface of mechanical moving parts. Background technique [0002] Erosion wear refers to the abrasion caused by the fluid to the material when the fluid containing particles flows over the surface of the material. Erosion wear widely exists in fans, water pumps, turbine blades, propellers, etc., and it is the main cause of these mechanical wears in specific environments. [0003] Domestic and foreign engineers and technicians mainly start from the perspective of materials science to improve the erosion resistance of the material surface. The main technical approaches that have been adopted are: [0004] 1. New materials, develop new erosion-resistant materials through material alloying and composite materials with different properties, such as Ti-Ni alloys with shape memory properties and fiber-reinforced ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B3/30B32B9/04B32B27/00
Inventor 韩志武尹维张俊秋刘庆平江佳廉戈超任露泉
Owner JILIN UNIV
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