Double-metal material knockout wear-resistant lining plate as well as chemical composition and processing method thereof

A technology of wear-resistant liner and processing method, which is applied in the field of wear-resistant liner, can solve the problems of difficult material selection, unsatisfactory, and insignificant effect of chute liner, and achieve the goal of not reducing hardness, enhancing stability, and prolonging service life. Effect

Inactive Publication Date: 2015-02-04
SHITSZJACHZHUAN SANKHUAN VEHLV KORPOREHJSHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The chute and liner are in a state of high temperature and uneven heat and cold, and are easily damaged. This harsh environment makes it extremely difficult to select materials for the chute liner. According to the throughput, high hardness and high wear resistance are required; Both often change and require high strength and high toughness. It is difficult for one material to meet both requirements at the same time.
Numerous pioneers in the industry artificially prolong the service life of the distribution chute, improve the durability, and carry out long-term improvement and transformation, but the service life can only reach 8000h, the effect is very small, unsatisfactory, and once became a problem in the industry

Method used

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  • Double-metal material knockout wear-resistant lining plate as well as chemical composition and processing method thereof

Examples

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Effect test

Embodiment 1

[0023] Example 1. The chemical composition of a bimetallic wear-resistant lining plate. In terms of weight percentage, the chemical composition of the lower plate body 2 includes: carbon 0.3%, silicon 0.5%, manganese 0.9%, sulfur 0.01%, phosphorus 0.01%, 0.5% chromium, and the rest is iron; by weight percentage, the chemical composition of the upper plate body 1 includes: carbon 2.0%, silicon 1.0%, manganese 1.8%, chromium 23.0%, molybdenum 2.7%, nickel 2.2%, copper 1.8%, sulfur 0.04%, phosphorus 0.08%, tungsten 0.7%, vanadium 0.1%, and the rest is iron.

[0024] The processing method of the wear-resistant liner in this embodiment includes the following steps:

[0025] a, material preparation: according to the above weight percentage, prepare the various chemical components required for the upper plate body 1 to be smelted into the upper plate body molten iron and the various chemical components required for the lower plate body 2 to be smelted into the lower plate body molten...

Embodiment 2

[0029] Example 2. The chemical composition of a bimetallic wear-resistant lining plate. In terms of weight percentage, the chemical composition of the lower plate body 2 includes: carbon 0.4%, silicon 0.75%, manganese 1.2%, sulfur 0.03%, phosphorus 0.03%, 0.8% chromium, and the rest is iron; by weight percentage, the chemical composition of the upper plate body 1 includes: carbon 3.3%, silicon 1.2%, manganese 2.0%, chromium 30.0%, molybdenum 3.0%, nickel 2.5%, copper 2.0%, sulfur 0.06%, phosphorus 0.10%, tungsten 1.0%, vanadium 0.2%, and the rest is iron.

[0030] The processing method of the wear-resistant liner in this embodiment includes the following steps:

[0031] a, material preparation: according to the above weight percentage, prepare the various chemical components required for the upper plate body 1 to be smelted into the upper plate body molten iron and the various chemical components required for the lower plate body 2 to be smelted into the lower plate body molte...

Embodiment 3

[0035] Example 3. The chemical composition of a bimetallic wear-resistant liner. In terms of weight percentage, the chemical composition of the lower plate body 2 includes: carbon 0.35%, silicon 0.6%, manganese 1.0%, sulfur 0.02%, phosphorus 0.02%, 0.7% chromium, and the rest is iron; by weight percentage, the chemical composition of the upper plate body 1 includes: carbon 2.6%, silicon 1.1%, manganese 1.9%, chromium 26.0%, molybdenum 2.8%, nickel 2.4%, copper 1.9%, sulfur 0.05%, phosphorus 0.09%, tungsten 0.9%, vanadium 0.15%, and the rest is iron.

[0036] The processing method of the wear-resistant liner in this embodiment includes the following steps:

[0037] a, material preparation: according to the above weight percentage, prepare the various chemical components required for the upper plate body 1 to be smelted into the upper plate body molten iron and the various chemical components required for the lower plate body 2 to be smelted into the lower plate body molten iron...

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Abstract

The invention discloses a double-metal material knockout wear-resistant lining plate as well as a chemical composition and a processing method thereof. A plurality of plate bodies are arranged in the inner wall of a hopper and the adjacent plate bodies are uniformly spaced and arranged in parallel, so that mutual knockout occurs among the materials during the production, the abrasion of the lining plate can be decreased and the service life of the lining plate can be prolonged. The upper plate body is made of fusant of wear-resistant cast iron and high-speed steel, and through the composite action of the metal elements, the stability of the austenite can be enhanced, the grains can be refined and the high-temperature stability and red hardness of the carbide can be improved, so that the characteristics of high hardness and high wear resistance can be satisfied while the upper plate body has high toughness and high strength. According to the double-metal material knockout wear-resistant lining plate as well as the chemical composition and the processing method thereof, the production cost is reduced; and due to the enhancement of the strength, the service life is prolonged to 13000h.

Description

technical field [0001] The invention belongs to the technical field of wear-resistant liners, and relates to a wear-resistant liner made of bimetallic material and its chemical composition and processing method. Background technique [0002] At present, almost all ironmaking blast furnaces in the world have eliminated the double-bell distribution method, and adopt the bell-less distributor, which is the core component to ensure the normal production of blast furnaces. The cloth chute of the cloth distributor is a key component to ensure the normal operation of the cloth. Because all the furnace materials, coke, sinter, additives, etc. for blast furnace smelting need to be sent to various parts of the furnace through the chute for scientific smelting to produce pig iron. The chute is the largest wearing part in the blast furnace production, which affects the output and air repair rate of the blast furnace. [0003] The distributor chute works for a long time at the furnace ...

Claims

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Application Information

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IPC IPC(8): C22C38/18C22C37/10C22C37/08C21D1/18C21D6/00C21D5/00
CPCB65D90/041B65G11/166C21D1/18C21D5/00C21D6/002C21D6/005C21D6/008C22C37/08C22C37/10C22C38/02C22C38/04C22C38/18
Inventor魏明义陈广全
OwnerSHITSZJACHZHUAN SANKHUAN VEHLV KORPOREHJSHEN