Preparation method of fatigue-resistant alloy lining plate for ball mill

A fatigue-resistant, ball mill technology, used in manufacturing tools, heat treatment equipment, furnaces, etc., can solve problems such as poor wear resistance and easy damage, and achieve the goal of improving ball milling efficiency, improving wear resistance and fatigue strength, and eliminating internal defects. Effect

Inactive Publication Date: 2017-05-10
马鞍山市银鼎机械制造股份有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The current wear-resistant balls have disadvantages such as poor wear resistance and easy damage. Further improvement and research are needed for the preparation process design of the fatigue-resistant alloy liner for ball mills.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] A method for preparing a fatigue-resistant alloy liner for a ball mill, comprising the following process steps:

[0013] 1) For casting steel ingots, the composition and weight percentage of each alloy in casting molten iron are: C1.4%, Si1.7%, Mn2.75%, Mo0.9%, S0.007%, Cr2.3%, Ni0.4% , Ti0.18%, W0.3%, Al0.17%, Re0.05%, the balance is iron;

[0014] 2) First heat the steel ingot to 1000-1100°C, then forge it into a flat shape, reheat it to 500-520°C after forging, put it into a closed mold for forging, and perform forging and pressing through the closed mold;

[0015] 3) Heat the alloy liner formed by forging to 560°C and keep it warm for 0.9h. After oil cooling to room temperature, reheat to the temperature range of 370°C and keep it warm for 1.1h, then water cooling;

[0016] 4) Vacuum heat treatment: After mechanical processing, it is carried out in a vacuum medium with a vacuum degree of 3.7Pa. The heat treatment temperature is 520°C, the heat treatment time is 50m...

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Abstract

The invention discloses a preparation method of a fatigue-resistant alloy lining plate for a ball mill. The preparation method comprises the following process steps that a steel ingot is cast, wherein the steel ingot contains, by weight, 1.3-1.5% of C, 1.5-1.9% of Si, 2.6-2.9% of Mn, 0.7%-1.1% of Mo, 0.004%-0.01% of S, 2.2-2.4% of Cr, 0.3-0.5% of Ni, 0.15-0.21% of Ti, 0.2-0.4% of W, 0.12-0.22% of Al, 0.02-0.09% of Re and the balance iron, The internal defects of the alloy lining plate material are effectively eliminated, the abrasion resistance and fatigue strength of the alloy lining plate are improved, and meanwhile the preparation method has the advantages of being free of oxidation, decarburization and element vaporizing and the like and can effectively improve the ball milling efficiency.

Description

technical field [0001] The invention relates to the field of ball mills, in particular to a method for preparing a fatigue-resistant alloy liner for a ball mill. Background technique [0002] Wear-resistant balls are widely used in ball mills in metallurgical mines, cement building materials, thermal power generation, flue gas desulfurization, magnetic materials, chemicals, coal water slurry, pellets, slag, ultrafine powder, fly ash, calcium carbonate, quartz sand, etc. . The current wear-resistant balls have disadvantages such as poor wear resistance and easy damage, and further improvement and research are needed for the preparation process design of the fatigue-resistant alloy liner for ball mills. Contents of the invention [0003] The purpose of the present invention is to provide a method for preparing a fatigue-resistant alloy liner for a ball mill. The internal defects of the alloy liner material are effectively eliminated, and the wear resistance and fatigue stre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/58C22C38/02C22C38/50C22C38/44C22C38/06C21D9/00B02C17/22
CPCB02C17/22C21D9/0081C22C38/002C22C38/06C22C38/34C22C38/44C22C38/50C22C38/58
Inventor 夏明星王卫远
Owner 马鞍山市银鼎机械制造股份有限公司
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