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A kind of wear-resistant shockproof coating and preparation method thereof

A coating and wear-resistant powder technology, applied in the field of wear-resistant and shock-resistant coatings and their preparation, can solve the problems of difficult to take into account the processing technology of the substrate, single performance improvement, increase the defects of the aluminum alloy substrate, etc., so as to avoid the die-casting process. Effect of parameter adjustment, improvement of wear resistance and shock absorption performance, and improvement of wear resistance performance

Active Publication Date: 2022-03-11
宁波宁理合勤能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this approach can only achieve a single performance improvement
In addition, some existing technologies, such as patents (CN201510372334.6) (CN201010586192.0), etc., use the method of adding other alloy elements to adjust the composition of the aluminum alloy and affect the microstructure of the aluminum alloy to improve the wear resistance and reduce the wear resistance of the aluminum alloy matrix. shock performance, however, this type of method greatly affects the processing technology of aluminum alloys (such as the fluidity and filling ability of aluminum alloys during die-casting) while changing the alloy composition, although to a certain extent it improves the aluminum alloys. Shock absorption and wear resistance, but it will greatly increase the defects of the aluminum alloy substrate and it is difficult to take into account the later processing technology of the substrate

Method used

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  • A kind of wear-resistant shockproof coating and preparation method thereof
  • A kind of wear-resistant shockproof coating and preparation method thereof
  • A kind of wear-resistant shockproof coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0054] A wear-resistant and shock-resistant coating, comprising: several superimposed magnesium alloy layers; the coating units of each magnesium alloy layer form a porous grid structure, and the porous grid structure is filled with composite epoxy resin. Specifically as a preference, including four layers of superimposed magnesium alloy layers, such as Figure 1-3As shown, the coating units in this implementation are in the shape of a cuboid, and the distance between the coating units is 1 mm, the width is 1 mm, and the height is 1 mm; for example, the coating units adjacent to the magnesium alloy layer are perpendicular to each other.

[0055] As an alternative, the magnesium alloy layer is prepared from magnesium alloy powder, and the magnesium alloy powder is prepared from the following raw materials in proportion by weight:

[0056] Al 7.5-8.5%; Sr 0.01%-0.05%; Y 0.02%-0.05%; Zn 1.4%-3.1%; Si 1.2%-1.8%; Mn2.5%-3.2%; B 0.5%-1.5%; The amount is Mg.

[0057] The particle s...

experiment example

[0077] 1. Shock absorption performance test

[0078] Using a damping tester to test the damping performance The dynamic thermomechanical analyzer (DMA2980 type) is used to measure the damping performance. The test is carried out in the single cantilever mode. The damping performance is characterized by the tangent value of the phase difference of the strain lagging behind the stress under forced vibration. Standard reference GB / T 16406-1996.

[0079] Test conditions: the strain amplitude is 2*10 -4 , frequencies of 0.1, 1 and 4 Hz, and temperatures from room temperature to 180°C. The experimental group is equipped with a wear-resistant and anti-seismic functional coating prepared in Example 1 with a thickness of 4 mm. Aluminum alloy sheet made of epoxy resin, the test results are as follows Figure 4-6 shown.

[0080] From the test results, it can be known that the damping performance of the shock-absorbing and wear-resistant coating prepared by the present invention has o...

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Abstract

The invention discloses a wear-resistant and anti-seismic coating and a preparation method thereof. A wear-resistant and anti-seismic coating comprises: a plurality of superimposed magnesium alloy layers; the magnesium alloy layer includes a plurality of coating units arranged at intervals, each of the The coating unit of the magnesium alloy layer forms a porous grid structure filled with composite epoxy resin. By building a multi-layer shock-absorbing magnesium alloy spatial grid structure on the surface of the substrate, combined with the filling of composite epoxy resin with wear resistance, the specific surface of the substrate can obtain wear-resistant and vibration-reducing functions. The substrate can be selected from Aluminum alloy, cast iron, cast copper, stainless steel, titanium alloy, etc., without changing the composition of the substrate, better achieve the performance requirements of the substrate surface (especially a specific surface) for wear resistance and shock absorption.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a wear-resistant and shock-resistant coating and a preparation method thereof. Background technique [0002] Aluminum alloy is a commonly used metal material, and its die-casting substrate is widely used in new energy vehicles (such as new energy vehicle battery boxes). At present, the wear resistance and shock absorption of the surface (especially the bottom surface) of the die-casting aluminum alloy battery box still need to be further improved in order to better protect the battery and improve the service performance of the supporting substrate. [0003] In the prior art, surface treatment technologies such as laser cladding and shot peening are generally used to improve the surface hardness of the magnesium alloy to improve wear resistance; in addition, the shock absorption performance of the battery box is improved by laying rubber pads. But such a processing method can only achieve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/02C09D7/61C22C23/02B22F10/28B22F5/00B33Y10/00B33Y80/00
CPCC09D163/00C09D7/61C22C23/02B22F5/00B33Y10/00B33Y80/00C08K2003/2227C08K2003/385C08K2201/005C08K3/34C08K3/22C08K3/14C08K3/38
Inventor 陈光王琪竣马寅涛宋一鸣余杰
Owner 宁波宁理合勤能源科技有限公司