Bimetallic wear-resisting lining plate and preparation method thereof

A wear-resistant lining plate and bimetal technology, which is applied in the field of metal material casting, can solve the problems of large difference in structure stress of composite layer, large difference in alloy composition content, unstable interface bonding force, etc., to achieve high wear resistance, Low cost, strong metallurgical bond

Inactive Publication Date: 2017-01-25
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, double-alloy composite liners are used in China, and the alloy composition content of the two materials is quite different. During the casting process, the structural stress of the composite layer is very different, and the interface bonding force is unstable. It is easy to cause cracks along the interface during use

Method used

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  • Bimetallic wear-resisting lining plate and preparation method thereof
  • Bimetallic wear-resisting lining plate and preparation method thereof
  • Bimetallic wear-resisting lining plate and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0022] The bimetal wear-resistant liner described in this embodiment, such as figure 1 , 2 , 3, the length × width × height is 1600 × 650 × 300mm, the height of the wear-resistant layer is 75mm, the height of the base layer is 225mm, the height of the T-shaped protrusion structure is 37.5mm, there are three T-shaped protrusions, and the T-shaped The width of the widest part of the raised structure is 43.5 mm. The composition and weight percentage of the base layer and wear-resistant layer materials are shown in Table 1. The rest of the wear-resistant layer is iron and unavoidable impurities.

[0023] Table 1

[0024]

[0025] The preparation method of the bimetallic wear-resistant liner described in this embodiment specifically includes the following steps:

[0026] (1) Batching and smelting: Batching is carried out according to the components of wear-resistant layer, base layer, and T-shaped protrusions, and smelted separately by medium frequency induction furnace;

[0...

Embodiment 2

[0032] The bimetallic wear-resistant lining plate described in this embodiment has a length × width × height of 1600 × 650 × 300mm, a wear-resistant layer height of 150mm, a base layer height of 150mm, a T-shaped convex structure height of 93.7mm, and a T-shaped convex structure. The width of the widest part of the T-shaped convex structure is 54.2mm. The composition and weight percentage of the base layer and wear-resistant layer materials are shown in Table 2. The rest of the wear-resistant layer is iron and non-woven fabrics. Avoid impurities.

[0033] Table 2

[0034]

[0035] The preparation method of the I-shaped structure bimetal wear-resistant lining plate described in this embodiment specifically includes the following steps:

[0036] (1) Batching and smelting: Batching is carried out according to the components of wear-resistant layer, base layer, and T-shaped protrusions, and smelted separately by medium frequency induction furnace;

[0037] (2) Layer-by-layer ...

Embodiment 3

[0042] The bimetallic wear-resistant lining plate described in this embodiment has a length × width × height of 1600 × 650 × 300mm, a wear-resistant layer height of 125mm, a base layer height of 175mm, a T-shaped convex structure height of 104.2mm, and a T-shaped convex structure. The width of the widest part of the T-shaped convex structure is 81.25mm. The composition and weight percentage of the base layer and wear-resistant layer materials are shown in Table 3. The rest of the wear-resistant layer is iron and unavoidable. Impurities.

[0043] table 3

[0044]

[0045] The preparation method of the I-shaped structure bimetal wear-resistant lining plate described in this embodiment specifically includes the following steps:

[0046] (1) Batching and smelting: Batching is carried out according to the components of wear-resistant layer, base layer, and T-shaped protrusions, and smelted separately by medium frequency induction furnace;

[0047] (2) Layered casting molding: ...

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Abstract

The invention discloses a bimetallic wear-resisting lining plate and a preparation method thereof and belongs to the technical field of metal material casting. The bimetallic wear-resisting lining plate comprises a matrix layer and a wear-resisting layer, wherein the wear-resisting layer is provided with more than two T-type projections inlaid into the matrix layer, the height ratio of every T-type projection to the wear-resisting layer is 1:1.2-1:2, the height ratio of the wear-resisting layer to the matrix layer is 1:1-1:3, the width ratio of every T-type projection to the lining plate is 1:8-1:15, the wear-resisting layer and the T-type projections are made of medium-carbon low-alloy silicon-manganese steel, the matrix layer is made of low-alloy carbon steel, and the bimetallic wear-resisting lining plate is prepared through compounding, smelting, casting, annealing and isothermal quenching. The bimetallic wear-resisting lining plate and the preparation method thereof have the advantages that through adoption of reasonable structural design and a layered casting technology, combination of a composite layer at an interface is closer, and the composite layer is less prone to separation; produced through the thermal treatment technology of simple isothermal quenching, the bimetallic wear-resisting lining plate is highly resistant to wear, high in tenacity, simple in preparation technology and convenient to produce, and production cost can be reduced effectively.

Description

technical field [0001] The invention relates to a bimetal wear-resistant liner and a preparation method thereof, belonging to the technical field of metal material casting. Background technique [0002] In the field of ball mill machinery and equipment, the diameter of ball mills used in my country's cement, metallurgy, mining and other industries is increasing, and the impact received by the liner is also increasing. The liner is used to protect the ball mill cylinder from the grinding body and It is a wearing part that is directly impacted and rubbed by the material, so the liner is required to have good wear resistance, high strength and toughness. At present, the lining plates used in large ball mills in my country are mostly high-manganese steel, alloy cast iron, low-alloy steel, etc. It is difficult for a single material to meet the requirements of a wide stress range. Therefore, the bimetal composite casting process mainly uses different metals to cast different parts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/04C22C38/02B22D19/16C21D1/30C21D1/20C21D1/60B02C17/22B32B15/01B32B15/18B32B3/06B32B33/00
CPCC22C38/04B02C17/22B22D19/16B32B3/06B32B15/011B32B33/00B32B2307/536B32B2307/554B32B2307/558C21D1/20C21D1/30C21D1/60C22C38/02
Inventor 李祖来杨阳山泉蒋业华周荣
Owner KUNMING UNIV OF SCI & TECH
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