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A kind of wear-resistant low carbon alloy steel material for stirring blade and preparation method thereof

A low-carbon alloy steel and alloy steel technology, applied in the direction of improving process efficiency, can solve the problems of low hardness and poor wear resistance of stirring blades, and achieve high production efficiency, long service life, and improved hardness and wear resistance. Effect

Active Publication Date: 2019-01-25
宜昌楚疆铸造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a wear-resistant low-carbon alloy steel material for stirring blades to solve the technical problems of low hardness and poor wear resistance of stirring blades in the prior art.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A wear-resistant low-carbon alloy steel material for stirring blade casting. The chemical element composition and mass percentage of the alloy steel material are: 0.2% carbon, 1.1% silicon, 0.6% manganese, 1.5% chromium, 0.55% molybdenum, and 0.4% vanadium %, phosphorus≤0.030%, sulfur≤0.030%, and the balance is iron.

[0026] The production method of the wear-resistant low-carbon alloy steel material for stirring blade casting in the above scheme includes the following production steps:

[0027] (1) Put high-quality steel scrap into the intermediate frequency furnace and fully melt it: Since the working frequency of the intermediate frequency induction furnace (hereinafter referred to as the intermediate frequency furnace) is between 50 and 10Hz, it is widely used in the smelting of non-ferrous metals and ferrous metals, compared with other casting equipment ,The intermediate frequency induction furnace has the advantages of high thermal efficiency, short melting time, ...

Embodiment 2

[0035] A wear-resistant low-carbon alloy steel material for stirring blade casting. The chemical element composition and mass percentage of the alloy steel material are: carbon 0.27%, silicon 1.5%, manganese 0.9%, chromium 1.9%, molybdenum 0.45%, vanadium 0.3% %, phosphorus≤0.030%, sulfur≤0.030%, and the balance is iron.

[0036] The production method of the wear-resistant low-carbon alloy steel material for stirring blade casting in the above scheme includes the following production steps:

[0037] (1) Put high-quality steel scrap into the intermediate frequency furnace and fully melt it: Since the working frequency of the intermediate frequency induction furnace (hereinafter referred to as the intermediate frequency furnace) is between 50 and 10Hz, it is widely used in the smelting of non-ferrous metals and ferrous metals, compared with other casting equipment ,The intermediate frequency induction furnace has the advantages of high thermal efficiency, short melting time, les...

Embodiment 3

[0044] A wear-resistant low-carbon alloy steel material for stirring blade casting. The chemical element composition and mass percentage of the alloy steel material are: carbon 0.32%, silicon 1.75%, manganese 1.2%, chromium 2.5%, molybdenum 0.2%, vanadium 0.1% %, phosphorus≤0.030%, sulfur≤0.030%, and the balance is iron.

[0045] The production method of the wear-resistant low-carbon alloy steel material for stirring blade casting in the above scheme includes the following production steps:

[0046] (1) Put high-quality steel scrap into the intermediate frequency furnace and fully melt it: Since the working frequency of the intermediate frequency induction furnace (hereinafter referred to as the intermediate frequency furnace) is between 50 and 10Hz, it is widely used in the smelting of non-ferrous metals and ferrous metals, compared with other casting equipment ,The intermediate frequency induction furnace has the advantages of high thermal efficiency, short melting time, les...

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PUM

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Abstract

The invention provides an abrasion-resistant low carbon alloy steel material for casting stirring vanes. The alloy steel material comprises the chemical compositions of, by mass, 0.2-0.35% of carbon, 1.1-1.8% of silicon, 0.6-1.2% of manganese, 1.5-2.5% of chrome, 0.2-0.55% of molybdenum, 0.1-0.4% of vanadium, 0-0.030% of phosphorus, 0-0.030% of sulfur and the balance iron. By adoption of the alloy elements such as silicon, chrome, molybdenum and vanadium, the alloy steel has high hardness, higher abrasion resistance and good toughness. The invention further provides a production method of the abrasion-resistant low carbon alloy steel material. By adopting high-quality waste steel as a raw material, performing melting and refining in an intermediate frequency furnace and reasonably controlling the temperature of the heat treatment process after casting and a heat treatment method, the alloy quality is more stable, the overall mechanical properties are improved, the cast stirring vanes can quickly reach the usage conditions due to the special mode that the heat treatment process is carried out after casting, besides, the heat treatment process remarkably improves the hardness and abrasion resistance of the stirring vanes, fewer assisting machines are used in the whole production process, and the production efficiency is higher.

Description

technical field [0001] The invention relates to the field of metal material preparation, in particular to a wear-resistant low-carbon alloy steel material for stirring blades and a preparation method thereof. Background technique [0002] Stirring blades are mostly used in working environments such as ore, coal, and slag. The working conditions are harsh and the requirements for materials are very high. [0003] At present, high-manganese steel is mostly used for stirring blades. High-manganese steel has low hardness, poor wear resistance, and large deformation during use. It cannot meet the production requirements in many working environments and needs further improvement. Improve production efficiency, reduce production costs, improve equipment safety, and reduce safety production risks. Contents of the invention [0004] The purpose of the present invention is to provide a wear-resistant low-carbon alloy steel material for stirring blades to solve the technical problem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/34C22C38/22C22C38/24C22C33/06C21D1/18C21D6/00
CPCC21D1/18C21D6/002C21D6/005C21D6/008C22C33/06C22C38/02C22C38/04C22C38/22C22C38/24C22C38/34Y02P10/20
Inventor 朱定武薛刚
Owner 宜昌楚疆铸造有限公司