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Preparation method for abrasion resistant alloy material

A wear-resistant alloy and a technology for preparation steps are applied in the preparation of wear-resistant alloy materials and in the field of wear-resistant materials, which can solve the problems of non-dense interior, backward smelting process, low casting technology level, etc., so as to improve work hardening and reduce yield strength. and tensile strength, the effect of improving compactness

Inactive Publication Date: 2018-01-09
NOTTING CHANGZHOU PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the backward smelting process of the metal wear-resistant material industry, lack of good alloy system, low level of casting technology, and non-dense interior, a preparation method of wear-resistant alloy material is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020] Put the tungsten powder in a stainless steel ball mill jar, mill it at a speed of 400r / min for 4 hours, and pass through a 200-mesh sieve to obtain tungsten powder; in parts by weight, take 4 parts of obsidian, 8 parts of pitchite, and 9 parts of perlite , washed with clean water, dried naturally and placed in a ball mill jar, ball milled at a speed of 300r / min for 2 hours, and passed through a 150 mesh sieve to obtain a mixed ball milled powder; according to a mass ratio of 3:1, mix the tungsten powder and the mixed ball milled powder , continue stirring for 30 minutes with a mixer at a speed of 150r / min to obtain a uniformly mixed powder mixture; take a steel ingot with a phosphorus and sulfur content of 0.04%, and the model is HPB300, place the steel ingot in an electric melting furnace, and control the temperature at 1200 °C, hold the pressure at 500MPa for 4 hours to obtain a molten liquid; take a powder mixture of 20% of the mass of the ingot and add it to the molt...

example 2

[0022] Put the tungsten powder in a stainless steel ball mill jar, mill it at a speed of 450r / min for 4.5 hours, and pass through a 230-mesh sieve to obtain tungsten powder; in parts by weight, take 5 parts of obsidian, 10 parts of turpentine, and 12 parts of pearl Rock, washed with clean water, dried naturally and placed in a ball mill jar, ball milled at a speed of 350r / min for 2.5h, and passed through a 170 mesh sieve to obtain a mixed ball mill powder; according to a mass ratio of 3:1, the tungsten powder and the mixed ball mill The powder is mixed, continuously stirred at a speed of 160r / min for 30min with a mixer to obtain a uniformly mixed powder mixture; get a steel ingot with a phosphorus and sulfur content of 0.04%, the model is GB700-79, place the steel ingot in an electric melting furnace, and The temperature was controlled at 1250°C, and the pressure was maintained at 550MPa for 4.5 hours to obtain a molten liquid; the powder mixture of 20% of the mass of the ingot...

example 3

[0024] Put the tungsten powder in a stainless steel ball mill jar, mill it at a speed of 500r / min for 5 hours, and pass through a 250-mesh sieve to obtain tungsten powder; in parts by weight, take 6 parts of obsidian, 12 parts of pitchite, and 18 parts of perlite , washed with clean water, dried naturally and placed in a ball mill jar, ball milled at a speed of 400r / min for 3 hours, and passed through a 200 mesh sieve to obtain a mixed ball milled powder; according to a mass ratio of 3:1, mix the tungsten powder and the mixed ball milled powder , use a mixer to continuously stir for 30 minutes at a speed of 180r / min to obtain a uniformly mixed powder mixture; take a steel ingot with a phosphorus and sulfur content of 0.04%, and the model is Q235, place the steel ingot in an electric melting furnace, and control the temperature at 1300 °C, hold the pressure at 600MPa for 5 hours to obtain a molten liquid; take a powder mixture of 20% of the mass of the ingot and add it to the mo...

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PUM

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Abstract

The invention relates to a preparation method for an abrasion resistant alloy material and belongs to the technical field of abrasion resistant material industry. Tungsten powder is placed in a stainless steel ball mill tank to be ball-milled and sieved, and thus processed tungsten powder is obtained; obsidian, pitchstone and perlite are used as raw materials, the raw materials are washed throughclean water, then ball-milled and sieved, and thus mixed ball-milled powder is obtained; the processed tungsten powder and the ball-milled powder are mixed according to the mass ratio and stirred continuously, then a powder mixture and steel ingot melted liquid are continuously stirred and mixed, and thus a mixture is obtained; and prepared mixed melted liquid is taken out and cast in a block-shaped mould, isothermal annealing is conducted, and thus the abrasion resistant alloy material is obtained.

Description

technical field [0001] The invention relates to a preparation method of a wear-resistant alloy material, which belongs to the technical field of the wear-resistant material industry. Background technique [0002] Special steel materials used in abrasive wear conditions are called steel anti-wear materials or wear-resistant materials. Abrasive wear is a type of wear caused by migration of material due to hard particles or protrusions. In the industrial field, abrasive wear is the most important type of wear, accounting for about 50%. [0003] At present, the most widely used and consumed wear-resistant materials are still mainly wear-resistant cast iron and wear-resistant cast steel. In order to improve the service life of materials and prevent early failure of materials, it is necessary to strengthen and toughen wear-resistant materials. At present, the strengthening and toughening treatment of wear-resistant materials mainly includes the following aspects: alloying, mult...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/12C22C38/02C22C33/06C21D1/26C21D6/00
Inventor 刘滨赵宝陈倩
Owner NOTTING CHANGZHOU PRECISION MACHINERY
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