Preparation method of wear-resistant ball with antioxidant wear-resistant coating

A wear-resistant coating and wear-resistant ball technology, applied in the field of wear-resistant balls, can solve the problems of low impact toughness, poor wear resistance, rough structure, etc., achieve high wear resistance and oxidation resistance, reduce manufacturing costs, The effect of extending the service life

Inactive Publication Date: 2016-11-09
MAANSHAN YIFENG INDAL GROUP
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AI Technical Summary

Problems solved by technology

However, the existing wear-resistant spherical crystal structure is rough, the hardness is relatively low, the impact toughness is low, and the wear resistance is poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] A method for preparing a wear-resistant ball with an anti-oxidation and wear-resistant coating, comprising the following process steps:

[0013] 1) Prepare wear-resistant ball castings. The alloy composition and weight percentage of the wear-resistant ball castings are: C1.4~1.6%, Si1.2~1.4%, Cr 2.65~2.95%, Mn1.05~1.25%, P0. 003~0.09%, S0.004~0.009%, Ni1.15~1.45%, V0.15~0.35%, Te0.15~0.35%, Ti0.04~0.08%, Cu0.02~0.05%, Nb0.05 ~0.11%, the balance is Fe;

[0014] 2) Then, the wear-resistant ball casting is subjected to salt bath treatment. The salt bath treatment is to conduct salt bath on the wear-resistant ball casting in a hydrochloric acid solution with a mass concentration of 18-22%, during which the hydrochloric acid solution is heated by induction: normal temperature ~ 50 ℃, the heating time is 0.5~0.8h; 50~150℃, the heating time is 0.3~0.4h, and finally wash with water;

[0015] 3) Spray a layer of wear-resistant coating with a thickness of 2-4mm on the surface o...

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Abstract

The invention discloses a preparation method of a wear-resistant ball with an antioxidant wear-resistant coating. The preparation method comprises the following process step that a wear-resistant ball casting is prepared, wherein a wear-resistant ball casting alloy comprises, by weight percentage, 1.4-1.6% of C, 1.2-1.4% of Si, 2.65-2.95% of Cr, 1.05-1.25% of Mn, 0.003-0.09% of P, 0.004-0.009% of S, 1.15-1.45% of Ni, 0.15-0.35% of V, 0.15-0.35% of Te, 0.04-0.08% of Ti, 0.02-0.05% of Cu, 0.05-0.11% of Nb and the balance Fe. The wear-resistant ball casting alloy is scientific and reasonable in composition proportion; and by spraying the wear-resistant coating on the surface, wear resistance and oxidation resistance are improved at the same time; the service life is greatly prolonged; manufacturing cost is lowered; and the requirements of an enterprise are met.

Description

technical field [0001] The invention relates to the field of wear-resistant balls, in particular to a method for preparing a wear-resistant ball with an anti-oxidation and wear-resistant coating. Background technique [0002] Wear-resistant ball is a kind of crushing medium used in ball mills, used to crush the materials in the mill, one is white cast iron with chromium as the main alloying element, referred to as chromium alloy cast iron, and the casting mill with chromium alloy cast iron as material The ball is called chromium alloy cast iron grinding ball; the other casting grinding ball made of ductile iron is called ductile iron grinding ball. Wear-resistant balls are mainly used in the production and processing of powder materials in metallurgical mines, cement building materials, thermal power generation and other industries. During the working process of the ball mill, the grinding ball is the main wearable part, which has a great impact on the cost of use; with th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C37/10C09D133/12C09D7/12
CPCC08L2205/035C09D7/61C09D7/63C09D7/65C09D7/70C09D133/12C22C37/06C22C37/08C22C37/10C08L67/00C08L91/06C08L83/04C08K13/04C08K3/36C08K5/098C08K7/14
Inventor 潘政桃李家宝张学伍
Owner MAANSHAN YIFENG INDAL GROUP
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