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Lining plate and preparation method thereof

A liner, dense technology, applied in the field of composite liner and its preparation, can solve the problems of low bonding strength of coating, low production efficiency, demanding production equipment, etc.

Active Publication Date: 2015-04-22
神木中科新星复合材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] At present, the methods for preparing carbide coatings include chemical vapor deposition, physical vapor deposition, thermal spraying, thermal diathermy, etc., but these methods have the disadvantages of demanding production equipment, low production efficiency, and low coating bonding strength.

Method used

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  • Lining plate and preparation method thereof
  • Lining plate and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Embodiment 1: the preparation method of liner, comprises the steps:

[0072] 1. First prepare a vanadium plate 1, wherein the purity of vanadium should be controlled at 99.7%. The vanadium plate 1 should be surface treated first, and the steps are as follows:

[0073] The first step is pickling, choose 300ml / L hydrochloric acid, and then rinse with running water;

[0074] In the second step of pickling, choose 300ml / L hydrofluoric acid, and then rinse with running water;

[0075] The third step is surface grinding, using 800 mesh Al 2 o 3 Sandpaper and finally ultrasonic cleaning with alcohol. The thickness of the vanadium plate 1 is controlled at 0.2mm.

[0076] 2. According to the size of the liner, use CO 2The sand mold 2 is made of water glass hardened sand. According to the working force of the liner, the main worn part is the upper surface of the liner. Therefore, an external carbon source 3 is fixed on the surface of the liner at the bottom of the sand mold...

Embodiment 2

[0084] Embodiment 2: the preparation method of liner, comprises the steps:

[0085] 1. First prepare a vanadium plate 1, wherein the purity of vanadium should be controlled at 99.8%. The vanadium plate 1 should be surface treated first, and the steps are as follows:

[0086] The first step is pickling, 60ml / L phosphoric acid, and then rinse with running water;

[0087] The second step is pickling, 200ml / L sulfuric acid, and then rinse with running water;

[0088] The third step is surface grinding, using 1000 mesh Al 2 o 3 Sandpaper and finally ultrasonic cleaning with alcohol. The thickness of the vanadium plate 1 is controlled at 1 mm.

[0089] 2. According to the size of the liner, sand mold 2 is made of coated sand. According to the working force of the liner, the main wear part is the upper surface of the liner. Therefore, an external carbon source 3 is fixed on the surface of the liner at the bottom of the sand mold 2. , the external carbon source 3 is graphite pap...

Embodiment 3

[0097] Embodiment 3: the preparation method of liner, comprises the steps:

[0098] 1. First prepare a vanadium plate 1, wherein the purity of vanadium should be controlled at 99.8%. The vanadium plate 1 should be surface treated first, and the steps are as follows:

[0099] The first step is pickling, 120ml / L hydrogen peroxide, and then rinse with running water;

[0100] The second step is pickling, 240ml / L hydrogen peroxide, and then rinse with running water;

[0101] The third step is surface grinding, using 1000 mesh Al 2 o 3 Sandpaper and finally ultrasonic cleaning with alcohol. The thickness of the vanadium plate 1 is controlled at 0.35mm.

[0102] 2. According to the size of the liner, make sand mold 2 with no-hardening resin sand. According to the working force of the liner, the main wear part is the upper surface of the liner, so fix the external carbon source on the surface of the bottom liner of sand mold 2 3. The external carbon source 3 is graphite paper, w...

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Abstract

The invention discloses a lining plate; a carbide coating layer is arranged on the upper surface of a working surface of the lining plate; a matrix of the lining plate is alloy steel; and the invention further provides a preparation method for obtaining the lining plate. The lining plate has the carbide coating layer on the working surface; the carbide coating layer comprises a V2C compact ceramic layer, and can further comprise a micron V8C7 compact ceramic layer and a fusion layer of V8C7 and the matrix. The V2C compact ceramic layer, the micron V8C7 compact ceramic layer and the fusion layer of V8C7 and the matrix are gradiently distributed in sequence. The lining plate can be applied to the surface of the alloy steel. A matrix and vanadium compound body obtained through casting is externally leaded in an external carbon source, and is heated and insulated to form the carbide coating layer on the surface of the matrix; and the coating layer and the matrix are metallurgically bonded, so that the binding force is strong, the problems of weak binding force and easy particle dropping due to traditional non-metallurgical bonding between hard particles and a metal matrix are overcome, and the wear resistance of the working surface of the lining plate is largely improved.

Description

technical field [0001] The invention relates to a composite liner with a wear-resistant coating and a preparation method thereof, in particular to a composite liner with a wear-resistant carbide coating and a preparation method thereof, in particular to a wear-resistant coating applied to the surface of alloy steel A ground carbide coated composite liner and a method for preparing the same. Background technique [0002] In metallurgy, mining, electric power, building materials and other industrial industries, a large number of lining plates are used for crushing, grinding, and conveying of materials. The lining plates are subjected to different degrees of erosion and wear, and are frequently replaced and costly. wearing parts. At present, the lining plate materials used in various industries mainly include several single metal materials such as high manganese steel, multi-element low alloy steel, and chromium-based white cast iron. Only under high load and high impact stre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D19/16B32B7/04
CPCB22D19/00B32B7/04
Inventor 许云华叶芳霞梁淑华燕映霖钟黎声赵娜娜王亮亮邹军涛肖鹏
Owner 神木中科新星复合材料技术有限公司
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