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Special highly-anticorrosive alloy cast ball for wet grinding of mine, and production method thereof

A production method and high corrosion resistance technology, applied in the direction of furnace type, furnace, heat treatment furnace, etc., to achieve the effect of increasing nucleation particles, refining as-cast grain size, and improving corrosion resistance

Inactive Publication Date: 2018-03-02
安徽中建材开源新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there has been no addition of Mo in China 、 Literature reports on the production process of Cu, Si and other elements and adopting vibration dynamic solidification process to cast balls

Method used

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  • Special highly-anticorrosive alloy cast ball for wet grinding of mine, and production method thereof

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Experimental program
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Effect test

Embodiment 1

[0033] A high-corrosion-resistant alloy casting ball for mine wet grinding, containing the following components by weight percentage: C 2.2%, Si 1.2%, Mn 1.0%, Cr 12%, Mo 0.006%, Cu0.025%, P≤0.05 %, S≤0.05%, Fe balance.

[0034] The production method of the high corrosion-resistant alloy cast balls for mine wet grinding comprises the following steps:

[0035] (1) Ingredients: Use clean and dry steel, ferromanganese, ferrochrome, ferromolybdenum, ferrosilicon, ferrochrome, and recarburizer as raw materials, and carry out ingredients according to the stated ratio range;

[0036] (2) Smelting: Put the prepared raw materials into an intermediate frequency induction melting furnace for smelting. When the temperature of the molten iron reaches 1490°C, take samples for chemical composition analysis, and fine-tune the weight percentage of each component through the feeding line;

[0037] (3) Comprehensive metamorphism treatment: including the metamorphic treatment in the primary furn...

Embodiment 2

[0043] A high-corrosion-resistant alloy cast ball for mine wet grinding, containing the following components by weight percentage: C 2.3%, Si 1.3%, Mn 1.2%, Cr 10.5%, Mo 0.007%, Cu 0.022%, P≤0.05% , S≤0.05%, Fe balance.

[0044] The production method of the high corrosion-resistant alloy cast balls for mine wet grinding comprises the following steps:

[0045] (1) Batching: adopt clean and dry iron and steel, ferromanganese, ferrochrome, ferromolybdenum, ferrosilicon, ferrochrome, and recarburizer as raw materials, and carry out batching according to the proportion range described in claim 1;

[0046] (2) Smelting: Put the prepared raw materials into an intermediate frequency induction melting furnace for smelting. When the temperature of the molten iron reaches 1500°C, take samples for chemical composition analysis, and fine-tune the weight percentage of each component through the feeding line;

[0047] (3) Comprehensive metamorphism treatment: including the metamorphic treat...

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Abstract

The invention discloses a special highly-anticorrosive alloy cast ball for wet grinding of mine, and a production method thereof. The special highly-anticorrosive alloy cast ball comprises, by weight,2.2-2.5% of C, 1.2-1.4% of Si, 1.0-1.5% of Mn, 10-12% of Cr, 0.006-0.008% of Mo, 0.02-0.025% of Cu, 0.05% or less of P, 0.05% or less of S, and the balance of Fe. The product produced through component optimization design and treatment using a special modifier and a comprehensive modification technology has the advantages of balanced internal and external hardness, no shrinkage cavity or shrinkage porosity on the surface, high hardness, low abrasion, high anticorrosive performance and high wear resistance, meets the use requirements of large mine mills, and is suitable for being used under various conditions; and the abrasion of the product is 50% less than that of low-chromium grinding balls, and the consumption cost is 25% less than that of the grinding balls, so the energy saving effect is obvious.

Description

technical field [0001] The invention relates to the technical field of casting balls, in particular to a special high corrosion-resistant alloy casting ball for mine wet grinding and a production method thereof. Background technique [0002] The wear-resistant material industry is an irreplaceable industry that directly serves the building materials cement, metallurgical mines and thermal power generation industries, and plays an important role in the basic industry. The rapid growth of my country's economy has increased the consumption of wear-resistant castings, stimulating and driving the wear-resistant materials industry. With the continuous progress of industry, energy saving and environmental protection requirements, while the demand for wear-resistant materials in mining, cement, thermal power and other industries in basic industries is increasing, the wear-resistant and corrosion-resistant Higher and more stringent requirements have been put forward for properties s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C37/10C22C37/06C22C33/08C21D1/18C21D5/00C21D9/36
CPCC22C37/10C21D1/18C21D5/00C21D9/36C22C33/08C22C37/06
Inventor 汪德发徐超汤新明张国芳李英虎徐光清
Owner 安徽中建材开源新材料科技有限公司
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