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Method for preparing high-tungsten abrasion-resistant alloy steel

An alloy steel, high tungsten technology, applied in the field of high tungsten wear-resistant alloy steel preparation, can solve the problem that the performance cannot meet the needs of use, and achieve the effects of high hardness, good weldability and long service life

Inactive Publication Date: 2016-11-16
ANQING LINGBAO MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with the continuous development of current productivity, the various performances of the existing wear-resistant alloys on the market can no longer meet the needs of the current society.

Method used

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Embodiment Construction

[0014] A preparation method of high tungsten wear-resistant alloy steel, 1) All components are processed by batching, casting and heat treatment, the hardness is increased to above HRC60, and the impact toughness is ak>50J. The metal performance is stable, wear-resistant and impact-resistant; the smelting smelting The temperature is 1760-1800 degrees, the melting temperature of the smelting is 1760-1800 degrees, the weight percentage of the composition is 1.5% tungsten, 1.6% titanium, 2.5% molybdenum, 4% chromium, 3% nickel, rhenium: 1.2%, cobalt 2%, carbon 0.25%, manganese 4%, indium 1.9-2.8%, thermoplastic resin 16%, lubricant 5%, inorganic minerals 5%, the rest is iron and non-removable impurities, the melt flow rate of the thermoplastic resin It is 60g / min, and it is prepared by injection molding process; the thermoplastic resin is syndiotactic polypropylene; the lubricant is one of silicate and phosphate; the mineral is wollastonite.

[0015] 2) Quenching; during quenchin...

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Abstract

The invention discloses a method for preparing high-tungsten abrasion-resistant alloy steel. The method comprises the steps that (1) all ingredients are subjected to burdening, casting molding and thermal treatment, and the smelting temperature is 1760-1800 DEG C; (2) quenching is carried out, specifically, dual-liquid quenching is carried out through rapid cooling quenching oil and slow cooling quenching oil in the quenching process, and a workpiece is placed in the rapid cooling quenching oil after being austenitized, then taken out before reaching the quenching medium temperature and immediately placed in the slow cooling quenching oil; (3) after the workpiece is quenched, tempering is carried out under the temperature condition of 220-250 DEG C, and heat preservation is carried out for 20-30 minutes so that the texture can be stabilized; and (4) the workpiece is subjected to air cooling to the normal temperature after being subjected to heat preservation in a tempering furnace at the temperature of 300-320 DEG C for 8-9 hours. High-strength abrasion-resistant alloy prepared through the method is high in hardness, good in abrasion resistance, high in resistance to oxidation, high in corrosion resistance and good in weldability.

Description

technical field [0001] The invention relates to the technical field of coal mine production equipment materials, in particular to a preparation method of high tungsten wear-resistant alloy steel. Background technique [0002] Wear-resistant alloys are prepared by mixing metals with wear-resistant functions, and adding some other elements to make the prepared alloys have other different functions, thereby expanding the scope of application of the product. However, with the continuous development of current productivity, the various performances of the existing wear-resistant alloys on the market can no longer meet the needs of the current society. Contents of the invention [0003] In view of the above problems, the object of the present invention is to provide a high tungsten wear-resistant alloy steel preparation method and its preparation method, which has high hardness, good wear resistance, strong oxidation resistance, good corrosion resistance, good weldability, high ...

Claims

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Application Information

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IPC IPC(8): C22C38/04C22C38/18C22C38/12C22C38/14C22C38/10C22C38/08C21D1/18C21D6/00
CPCC22C38/04C21D1/18C21D6/005C22C38/002C22C38/105C22C38/12C22C38/14C22C38/18
Inventor 洪星
Owner ANQING LINGBAO MACHINERY
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