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A kind of preparation method of high manganese steel base wear-resistant blow bar

A high-manganese steel and wear-resistant plate technology, which is applied in the field of preparation of high-manganese steel-based wear-resistant blow bars, can solve the problem of low bonding strength between the reinforcement body and the metal matrix interface, improve the macroscopic interface performance, and slow down the initiation and expansion. , Improve the effect of bonding strength

Active Publication Date: 2022-04-08
XIAN UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing a high manganese steel-based wear-resistant blow bar, which solves the problem of low bonding strength between the reinforcing body and the metal matrix interface in the blow bar prepared by the existing method

Method used

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  • A kind of preparation method of high manganese steel base wear-resistant blow bar
  • A kind of preparation method of high manganese steel base wear-resistant blow bar
  • A kind of preparation method of high manganese steel base wear-resistant blow bar

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Effect test

Embodiment 1

[0030] A high manganese steel-based wear-resistant blow bar is prepared, comprising the following steps:

[0031] Step 1, using the sand casting method to prepare the high manganese steel plate hammer body, including sand mold making, metal smelting, pouring, and cleaning;

[0032] Step 2, prepare composite preform A

[0033] Step 2.1, take the following component materials according to mass percentage: high-purity titanium powder 35%, graphite powder 8.5%, iron powder 56.5, the sum of the mass percentages of the above components is 100%; high-purity titanium powder, graphite powder The particle size of iron powder and iron powder are both 60 mesh;

[0034] In step 2.2, use a V-shaped mixer to mix the components weighed in step 2.1 for 12 hours to make them uniform and then dry them;

[0035] Step 2.3, using a forming machine to roll a low-carbon steel strip with a width of 5mm and a thickness of 0.08mm into a U-shaped steel strip, even if the longitudinal section of the low...

Embodiment 2

[0042] A high manganese steel-based wear-resistant blow bar is prepared, comprising the following steps:

[0043] Step 1, using the sand casting method to prepare the high manganese steel plate hammer body, including sand mold making, metal smelting, pouring, and cleaning;

[0044] Step 2, prepare composite preform A

[0045] Step 2.1, weighing the following component materials according to mass percentage: 30% high-purity tungsten powder, 2% graphite powder, 68% iron powder, the sum of the mass percentages of the above components is 100%;

[0046] In step 2.2, use a V-shaped mixer to mix the components weighed in step 2.1 for 13 hours to make them uniform and then dry them;

[0047] Step 2.3, use a forming machine to roll the low-carbon steel strip with a width of 4.5mm and a thickness of 0.09mm into a U-shaped steel strip, even if the longitudinal section of the low-carbon steel strip is U-shaped, put the powder dried in step 3.2 in a low-carbon Then roll the U-shaped stee...

Embodiment 3

[0054] A high manganese steel-based wear-resistant blow bar is prepared, comprising the following steps:

[0055] Step 1, using the sand casting method to prepare the high manganese steel plate hammer body, including sand mold making, metal smelting, pouring, and cleaning;

[0056] Step 2, prepare composite preform A

[0057] Step 2.1, weigh the following component materials according to mass percentage: 40% of high-purity niobium powder, 5% of graphite powder, 55% of iron powder, the sum of the mass percentages of the above components is 100%;

[0058] In step 2.2, use a V-shaped mixer to mix the components weighed in step 2.1 for 12.5 hours to make them uniform and then dry them;

[0059] Step 2.3, use a forming machine to roll the low-carbon steel strip with a width of 5.5mm and a thickness of 0.07mm into a U-shaped steel strip, even if the longitudinal section of the low-carbon steel strip is U-shaped, put the powder dried in step 3.2 in a low-carbon Then roll the U-shap...

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Abstract

The invention discloses a preparation method of a high manganese steel-based wear-resistant blow bar. Manganese steel liquid, after the high manganese steel liquid completely covers the fiber net, spread it into the second layer of fiber net, spray high manganese steel liquid on the second layer of fiber net, repeat the above steps until the mold of blow bar striking part is filled, and then cool , Demoulding, obtain composite preform A and composite preform B, heat treat composite preform A and composite preform B, and obtain blow bar striking parts; weld the two blow bar striking parts on both sides of the blow bar body respectively , That is to obtain high manganese steel base wear-resistant blow bar. The invention uses high-temperature diffusion to realize metallurgical bonding between the steel matrix and the low-carbon steel transition layer, and uses in-situ reaction to improve the bonding strength of the microscopic interface of hard particles / metal matrix, so that the prepared blow bar has excellent strength, toughness and good durability. Abrasive.

Description

technical field [0001] The invention belongs to the technical field of preparation methods of steel blow bars, and relates to a preparation method of high manganese steel-based wear-resistant blow bars. Background technique [0002] The impact crusher has been widely used in mining, smelting, building materials, roads, railways, water conservancy and chemical industries due to its excellent characteristics such as large crushing ratio, simple structure, easy maintenance, economical and practical. The impact crusher uses the principle of impact crushing. Its crushing structure is a rotor with a blow bar. When working, the rotor rotates and drives the blow bar to hit the material at a high speed. Repeated impacts break the large material and reduce its size. After the particle size is required, it will be discharged from the equipment from top to bottom along the gap between the blow bar and the impact plate. Therefore, it can be seen that the mechanical properties of the blo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C47/18C22C47/06C21D1/18C22C49/08C22C49/14B22C9/22C21D9/00B23K31/02C22C111/00
CPCC22C47/18C22C47/066C21D1/18C22C49/08C22C49/14B22C9/22C21D9/0068B23K31/02
Inventor 钟黎声庄卫军武宏白海强崔鹏杰许云华
Owner XIAN UNIV OF TECH