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Preparation method of ZTA particle-reinforced steel matrix composite broken wall based on chemical method activating treatment

A technology of activation treatment and particle reinforcement, applied in the field of wear-resistant material preparation, can solve the problems of reinforcement, poor bonding between ZTA particles and iron base, and ZTA ceramic particles cannot play a role, so as to enhance interface bonding, improve bonding strength, and improve The effect of wear resistance

Active Publication Date: 2017-05-10
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the binding between ZTA particles and iron matrix is ​​poor, and the combination of ZTA ceramic particles and iron matrix in the composite material prepared by casting infiltration method is a mechanical combination, so that ZTA ceramic particles cannot play the role of reinforcement.

Method used

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  • Preparation method of ZTA particle-reinforced steel matrix composite broken wall based on chemical method activating treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: Cone Crusher Broken Wall

[0026] 1) Mix titanium powder and inorganic salt, add ZTA particles and stir evenly to carry out high-temperature salt bath plating. The temperature of high-temperature salt bath is 750 ° C, and keep warm for 15 minutes to obtain a uniform coating; wherein, the mass ratio of titanium powder to inorganic salt is 10%, The mass fraction of ZTA ceramic particles in salt bath plating is 80%.

[0027] 2) Put the titanium-plated ZTA particles into the chemical plating solution, stir with a magnetic stirrer and heat to 70°C for 2 hours to obtain a nickel layer;

[0028] 3) Sinter the coated ZTA particles, raise the temperature from room temperature to 1200°C at a heating rate of 10-15°C / min, then raise the temperature to 1400°C at a heating rate of 5-8°C / min and sinter for 1 hour, then cool with the furnace , ZTA particles are interconnected to form a pore-like prefabricated body;

[0029] 4) Fix the prefabricated body in the sand mold, a...

Embodiment 2

[0030] Example 2: Gyratory crusher broken wall

[0031] 1) Mix titanium powder and inorganic salt, add ZTA particles and stir evenly to perform high-temperature salt bath plating. The temperature of the high-temperature salt bath is 780° C., and keep warm for 30 minutes to obtain a uniform coating; wherein, the mass ratio of titanium powder to inorganic salt is 15%, The mass fraction of ZTA ceramic particles in salt bath plating is 72%.

[0032] 2) Put the titanium-plated ZTA particles into the chemical plating solution, stir with a magnetic stirrer and heat to 76°C for 4 hours to obtain a nickel layer;

[0033] 3) Sinter the coated ZTA particles, raise the temperature from room temperature to 1200°C at a heating rate of 10-15°C / min, then raise the temperature to 1400°C at a heating rate of 5-8°C / min and sinter for 1 hour, then cool with the furnace , ZTA particles are interconnected to form a pore-like prefabricated body;

[0034] 4) The prefabricated body is fixed in the s...

Embodiment 3

[0035] Example 3: Ring Hammer Crusher Broken Wall

[0036] 1) Mix titanium powder and inorganic salt, add ZTA particles and stir evenly to carry out high-temperature salt bath plating. The temperature of high-temperature salt bath is 710° C., and keep warm for 45 minutes to obtain a uniform coating; wherein, the mass ratio of titanium powder to inorganic salt is 12%, The mass fraction of ZTA ceramic particles in salt bath plating is 68%.

[0037] 2) Put the titanium-plated ZTA particles into the chemical plating solution, stir with a magnetic stirrer and heat to 85° C. for 6 hours to obtain a nickel layer;

[0038] 3) Sinter the coated ZTA particles, raise the temperature from room temperature to 1200°C at a rate of 10-15°C / min, and then increase the rate of temperature to 1400°C at a rate of 5-8°C / min for sintering for 1 hour, then cool with the furnace , ZTA particles are interconnected into a pore-like prefabricated body.

[0039] 4) Fix the prefabricated body in the sand...

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Abstract

The invention discloses a preparation method of a ZTA particle-reinforced steel matrix composite broken wall based on chemical method activating treatment. The preparation method comprises the following steps: 1) ZTA particles are subjected to high temperature salt bath plating, and uniform titanium coatings are obtained on the surfaces of the ZTA particles; 2) nickel layers are formed at the peripheries of the titanium coatings; 3) the ZTA particles after plating are sintered, the ZTA particles are connected mutually to form a pore-shaped prefabricated body; and 4) the prefabricated body is fixed to a moulded end face or working face, then steel matrix material molten metal is cast by adopting a cast-infiltration technology, and after cooling, the ZTA particle-reinforced steel matrix composite broken wall is obtained. Active elements introduced in the preparation method can improve the interface boding property between the ZTA particles and metal, mechanical bonding between the ZTA particles and metal is changed to metallurgical bonding, and a macro bonding situation is shown in figure 1. The preparation method can improve the wear resistance of a composite, and ensures that the service life of the ZTA particle-reinforced steel matrix composite broken wall is long.

Description

technical field [0001] The invention belongs to the field of preparation of wear-resistant materials, and in particular relates to a preparation method for chemically activated ZTA particle-reinforced steel-based composite crushing walls of a cone crusher. 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...

Claims

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Application Information

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IPC IPC(8): B22D23/04C23C28/02C22C33/04
CPCC22C33/006C22C33/04C23C28/023B22D23/04
Inventor 李烨飞袁鹤鹤高义民汤姝丽陈志霍旭旭郑巧玲
Owner XI AN JIAOTONG UNIV
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