Preparation method of porous meshed ceramic-reinforced steel-based compound broken wall

A crushing wall and reticular technology, which is applied in the field of preparation of porous reticular ceramic reinforced steel-based composite crushing wall, can solve the problems of low strength, low hardness, poor friction resistance, low strength of reinforcement phase and matrix interface, and achieve wettability Good toughness, improved toughness, improved wear resistance

Active Publication Date: 2019-02-15
XI AN JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are disadvantages such as poor friction resistance, low strength and hardness, and low interface strength between the reinforcing phase and the matrix.

Method used

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  • Preparation method of porous meshed ceramic-reinforced steel-based compound broken wall

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preparation example Construction

[0029] The invention discloses a method for preparing a porous mesh ceramic reinforced iron-based composite crushing wall, comprising the following steps:

[0030] S1, the TiB 2 Add powder and additives to deionized water and stir well to obtain ceramic slurry suspension;

[0031] Additives include ferrochrome powder, ammonium citrate, carboxymethyl cellulose, and silica sol.

[0032] TiB2 powder accounts for 60-80% of the total mass of the ceramic slurry, additives account for 10-25% of the total mass of the ceramic slurry, deionized water accounts for 10-30%, ferrochrome powder accounts for 60-80% of the additive mass, citric acid Ammonium accounts for 3-8% of the mass of the additive, carboxymethyl cellulose accounts for 4-8% of the mass of the additive, and silica sol accounts for 5-25% of the mass of the additive.

[0033] S2. Select an organic foam with a suitable pore size, dip it in the ceramic slurry, take it out after 1-5 minutes and squeeze out the excess slurry; ...

Embodiment 1

[0041] Example 1: Cone Crusher Broken Wall

[0042] 1) First, 99.4g TiB 2 Powder, 42.6g of ferrochrome powder, 1.42g of ammonium citrate and 0.71g of carboxymethyl cellulose were added to 32mL of deionized water and 8mL of silica sol were added, fully stirred to obtain a ceramic slurry suspension;

[0043] 2) Secondly, select 5PPI soft polyurethane foam, dip it in the ceramic slurry, take it out after 2 minutes and squeeze out the excess slurry;

[0044] 3) After drying the impregnated organic foam, raise the temperature from room temperature to 600°C at a rate of 2°C / min in a vacuum furnace and keep it warm for 50 minutes, then raise the temperature to 1000°C at a rate of 10°C / min, and then Sinter at a rate of 5°C / min to 1550°C for 3 hours, and cool down with the furnace to obtain a porous mesh preform;

[0045] 4) Fix the prefabricated body on the end surface or working surface of the mold, pour the metal liquid of the steel matrix material by casting infiltration process,...

Embodiment 2

[0046] Example 2: Gyratory crusher broken wall

[0047] 1) First, put 84g TiB 2 Powder, 36g of ferrochrome powder, 1.42g of ammonium citrate and 0.71g of carboxymethyl cellulose were added to 32mL of deionized water and 8mL of silica sol were added, and the ceramic slurry suspension was obtained by fully stirring;

[0048] 2) Secondly, select 15PPI soft polyurethane foam, dip it in the ceramic slurry, take it out after 3 minutes and squeeze out the excess slurry;

[0049] 3) After drying the impregnated organic foam, raise the temperature from room temperature to 800°C at a rate of 2°C / min in a vacuum furnace and keep it warm for 60 minutes, then raise the temperature to 1200°C at a rate of 8°C / min, and then Sinter at 1550°C for 1 hour at a heating rate of 2°C / min, and cool down with the furnace to obtain a porous mesh preform;

[0050] 4) Fix the prefabricated body on the end surface or working surface of the mold, pour the metal liquid of the steel matrix material by casti...

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Abstract

The invention discloses a preparation method of a porous meshed ceramic-reinforced steel-based compound broken wall. The preparation method comprises the steps that TiB2 powder and an additive are mixed and then added into deioned water to be sufficiently stirred, so that a ceramic pulp suspension is obtained; organic foam is soaked in ceramic pulp, then dried and sintered at high temperature, sothat a porous meshed TiB2 prefabricated part is obtained; finally, a molten steel base material is poured to the prepared porous meshed TiB2 prefabricated part through a cast-penetration process, andcooling and demoling are carried out, so that the porous meshed ceramic-reinforced steel-based compound broken wall is obtained. The compound broken wall prepared according to the method has higher friction resistance and high-temperature resistance, enhanced strength and toughness and longer service life, and the strength of bonding between a reinforcement phase and a matrix is high.

Description

technical field [0001] The invention belongs to the technical field of preparation of wear-resistant materials, and in particular relates to a method for preparing a porous mesh ceramic reinforced steel-based composite crushing wall. Background technique [0002] Cone crushers are suitable for crushing raw materials in metallurgy, construction, road construction, chemistry and silicate industries. According to different crushing principles and product particle sizes, they are divided into many models. The cone crusher has a large crushing ratio, high efficiency, low energy consumption, and uniform particle size. It is suitable for medium and fine crushing of various ores and rocks. When the cone crusher is working, the motor rotates through the belt pulley or coupling, the drive shaft of the cone crusher and the cone part of the cone crusher, under the force of the eccentric sleeve, it makes a swing motion around a fixed point. Therefore, the crushing wall of the crushing c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C37/06C22C33/08B22D23/04
CPCB22D23/04C22C33/08C22C37/06
Inventor 李烨飞周晨鸣陈志郑巧玲王娟高义民陈璐
Owner XI AN JIAOTONG UNIV
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