Preparation method of ZTA particle enhanced steel-based composite liner plate based on chemical activation treatment

A technology of activation treatment and particle reinforcement, which is applied in the field of preparation of wear-resistant materials, can solve the problems of reinforcement, poor binding between ZTA particles and iron base, and ZTA ceramic particles cannot be used to enhance interface bonding, improve bonding strength, and improve The effect of wear resistance

Active Publication Date: 2017-05-31
陕西明熙康普科技有限公司
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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 enhanced steel-based composite liner plate based on chemical activation treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: Ball mill liner

[0024] 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%.

[0025] 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;

[0026] 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;

[0027] 4) Fix the prefabricated body in the sand mold, and then u...

Embodiment 2

[0028] Example 2: Roller Mill Liner

[0029] 1) Mix titanium powder and inorganic salt, add ZTA particles and stir evenly to carry out salt bath plating. The mass fraction of ZTA ceramic particles in bath plating is 80%.

[0030] 2) Put the titanium-plated ZTA particles into the chemical plating solution, stir with a magnetic stirrer and heat to 90°C for 4 hours to obtain a nickel layer;

[0031] 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;

[0032] 4) Fix the prefabricated body in the sand mold, and then use the cast infiltration process to pour the molten metal of the steel matrix material, and obtain figure 1 The ZTA particle reinforced steel matrix composite liner is shown.

Embodiment 3

[0033] Example 3: column mill liner

[0034] 1) Mix titanium powder and inorganic salt, add ZTA particles and stir evenly to carry out salt bath plating. The mass fraction of ZTA ceramic particles in bath plating is 80%.

[0035] 2) Put the titanium-plated ZTA particles into the chemical plating solution, stir with a magnetic stirrer and heat to 80° C. for 6 hours to obtain a nickel layer;

[0036] 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.

[0037] 4) Fix the prefabricated body in the sand mold, and then use the cast infiltration process to pour the molten metal of the steel matrix material, and obtain figure 1 The ZTA particle reinforced steel matrix composite liner is shown.

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Abstract

The invention discloses a preparation method of a ZTA particle enhanced steel-based composite liner plate based on chemical activation treatment. The preparation method comprises the following steps: (1) carrying out high temperature salt-bath plating on ZTA particles, and obtaining uniform titanium plated layers on the surfaces of the ZTA particles; (2) forming nickel layers at the peripheries of the titanium plated layers; (3) sintering the plated ZTA particles, and mutually connecting the ZTA particles to form a porous prefabricated part; and (4) fixing the prefabricated part on the end surface or the working surface of a cast, pouring a steel base material metal solution through a casting-penetrating process, and carrying out cooling to obtain the ZTA particle enhanced steel-based composite liner plate. During the salt-bath titanium plating, titanium and the surfaces of the ZTA ceramic particles form metallurgical bonding, so that the interfacial bonding property between the titanium layers and the ZTA ceramic particles is enhanced. The ZTA ceramic particles subjected to the salt-bath titanium plating is then subjected to chemical nickel plating, and a titanium-nickel alloy can be generated at a titanium-nickel bonding part; and the titanium-nickel alloy layers achieve the effect of a flexible transitional layer between a metal base body and the ZTA particles, so that the bonding strength of the interface is greatly enhanced.

Description

technical field [0001] The invention belongs to the field of preparation of wear-resistant materials, and in particular relates to a preparation method of ZTA particle-reinforced steel-based composite liner. Background technique [0002] The cylinder liner of the ball mill is used to protect the cylinder from the direct impact and friction of the grinding body and the material. At the same time, it also affects the movement of the grinding body. Different forms of liners can be used to adjust the movement of the grinding body. , to enhance the crushing effect of the grinding body on the material, which helps to improve the grinding efficiency of the ball mill, increase the output, and reduce the metal consumption. ZTA particle-reinforced steel-based composite liner is a new type of material with impact resistance and high wear resistance that is cast by metallurgical melting of wear-resistant materials. [0003] Ceramic particles reinforced metal matrix composites not only ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D23/04C23C28/02C22C33/04
CPCC22C33/006C22C33/04C23C28/023B22D23/04
Inventor 李烨飞袁鹤鹤高义民皇志富陈志霍旭旭郑巧玲
Owner 陕西明熙康普科技有限公司
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