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High-chromium alloy wear-resistant lining board for jaw crusher

A jaw crusher and high-chromium alloy technology, applied in the field of wear-resistant lining plates, can solve the problems of high cost of composite ceramic grids, reduce the lifting height of grinding bodies, etc., achieve less alloy types, prevent shrinkage porosity, and good wear resistance sexual effect

Active Publication Date: 2015-01-07
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

However, the surface of this kind of liner is flat, and the lack of friction between the grinding body and the liner surface will cause the grinding body to slide along the surface of the liner, which reduces the lifting height of the grinding body, and the cost of composite ceramic mesh on the entire surface is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A high-chromium alloy wear-resistant liner for a jaw crusher, the components and weight percentages are: C: 3.1%, Mn: 1.3%, Cr: 26.6%, Si: 1.28%, Mo: 0.5%, B: 0.08 %, Cu: 0.06%, Re: 0.06%, S: 0.01%, P: 0.02%; the balance is Fe.

[0043] The production method of the high chromium alloy wear-resistant liner for the jaw crusher comprises the following steps:

[0044] (1) Preparation of sand molds;

[0045] (2) Raw material smelting: cover the liquid surface with pearl sand; add ferromanganese when the temperature is 1520°C; add ferrosilicon and ferroboron when the temperature is 1535°C, and perform component analysis and fine-tuning;

[0046] (3) Slag removal and final deoxidation treatment;

[0047] (4) Add ladle covering agent;

[0048] (5) add Re to carry out metamorphic treatment: particle size 1.0mm, add when 45% molten iron is poured into ladle;

[0049] (6) Casting: the temperature is 1400°C. Before casting, spray alcohol on the surface of the sand mold, and ign...

Embodiment 2

[0053] A high-chromium alloy wear-resistant liner for jaw crushers, the components and weight percentages are: C: 3.16%, Mn: 1.2%, Cr: 227%, Si: 1.24%, Mo: 0.6%, B: 0.06 %, Cu: 0.08%, Re: 0.04%, S: 0.02%, P: 0.01%; the balance is Fe.

[0054] The production method of the high chromium alloy wear-resistant liner for the jaw crusher comprises the following steps:

[0055] (1) Preparation of sand molds;

[0056] (2) Raw material smelting: cover the liquid surface with pearl sand; add ferromanganese when the temperature is 1525°C; add ferrosilicon and ferroboron when the temperature is 1530°C, and conduct component analysis and fine-tuning;

[0057] (3) Slag removal and final deoxidation treatment;

[0058] (4) Add ladle covering agent;

[0059] (5) add Re to carry out metamorphic treatment: particle size 1.5mm, add when 40% molten iron is poured into ladle;

[0060] (6) Casting: the temperature is 1420°C. Before casting, spray alcohol on the surface of the sand mold, and igni...

Embodiment 3

[0064] A high-chromium alloy wear-resistant liner for a jaw crusher, the components and weight percentages are: C: 3.15%, Mn: 1.25%, Cr: 26.8%, Si: 1.25%, Mo: 0.55%, B: 0.07 %, Cu: 0.07%, Re: 0.08%, S: 0.02%, P: 0.02%; the balance is Fe.

[0065] The production method of the high chromium alloy wear-resistant liner for the jaw crusher comprises the following steps:

[0066] (1) Preparation of sand molds;

[0067] (2) Raw material smelting: cover the liquid surface with pearl sand; add ferromanganese when the temperature is 1522°C; add ferrosilicon and ferroboron when the temperature is 1534°C, and perform component analysis and fine-tuning;

[0068] (3) Slag removal and final deoxidation treatment;

[0069] (4) Add ladle covering agent;

[0070] (5) add Re to carry out metamorphic treatment: particle size 1.2mm, add when 44% molten iron is poured into ladle;

[0071] (6) Casting: the temperature is 1410°C. Before casting, spray alcohol on the surface of the sand mold, and ...

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Abstract

The invention discloses a high-chromium alloy wear-resistant lining board for a jaw crusher. The high-chromium alloy wear-resistant lining board comprises the following components by weight percent: 3.1-3.16 percent of C, 1.2-1.3 percent of Mn, 26.6-27 percent of Cr, 1.24-1.28 percent of Si, 0.5-0.6 percent of Mo, 0.06-0.08 percent of B, 0.06-0.08 percent of Cu, 0.04-0.06 percent of Re, less than or equal to 0.02 percent of S, less than or equal to 0.02 percent of P and the balance of Fe. According to the invention, through the reasonably improved formula and the reasonable smelting, spoiling, casting and other processing technologies, the wear-resistant lining board has favorable wearing resistance, rigidity, strength, corrosion resistance and ductility; through control of the casting time and the sand mold temperature, shrinkage porosity and shrinkage cavity are prevented, the ductility and the wearing resistance of the wear-resistant lining board are improved, the surface Shore-type A hardness is larger than or equal to 60 degrees, the impact value is larger than or equal to 5.0 J / cm<2>, and the service life is 11,000-12,000 hours; a few types of alloys are used; and the cost is lowered.

Description

technical field [0001] The invention relates to the technical field of wear-resistant liners, in particular to a high-chromium alloy wear-resistant liner for jaw crushers. Background technique [0002] Jaw crushers are also known as jaw crushers, mainly used for medium-sized crushing of various ores and bulk materials, and widely used in mining, smelting, building materials, roads, railways, water conservancy and chemical industries. The maximum compressive strength of the crushed material is 320MPa. The performance features are large crushing ratio, uniform product size, simple structure, reliable performance, easy maintenance and low operating costs. Jaw crushers are mainly used as primary crushers and secondary crushers in mining, building materials, infrastructure and other departments. According to the width of the feed port, it is divided into three types: large, medium and small. The machine with a feed port width greater than 600MM is a large machine, the one with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C1/02C22C37/10C22C37/06
Inventor 汪德发
Owner 安徽中建材开源新材料科技有限公司