Preparation method for metal ceramic composite

A technology of cermets and composites, applied in the field of ceramics, can solve the problems of poor impact resistance and poor wear resistance, and achieve the effects of increasing service life, improving wear resistance, and better absorbing impact energy

Active Publication Date: 2016-01-20
洛阳鹏飞耐磨材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for preparing a metal-ceramic composite that can be used as a lining material for the defects of poor wear resistance and impact resistance of the existing lining material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The preparation method of the metal-ceramic composite body comprises the following steps: step 1, take microcapsule powder, alumina powder and absolute ethanol according to the weight ratio of 1:3:3, after mixing, ultrasonically disperse at an ultrasonic frequency of 45KHz for 25min, and then Carry out suction filtration under the vacuum condition that vacuum degree is 0.098MPa, stop suction filtration when there is no more ethanol liquid dripping, take out filtrate, set aside;

[0021] Step 2. Put the filtrate obtained in step 1 in an oven, dry at 30°C×6h and preheat at 50°C×20min in sequence, take out the preheated material and place it in a press, Pre-press for 5 minutes under 2MPa pressure, then hot-press for 30 minutes at 5MPa and 150°C, and cool down to room temperature naturally to prepare alumina ceramic microcapsule powder for later use;

[0022] Step 3. Mix the polyvinyl alcohol with a weight ratio of 3:25 and the alumina ceramic microcapsule powder prepared i...

Embodiment 2

[0026] The preparation method of the metal-ceramic composite body comprises the following steps: step 1, take microcapsule powder, alumina powder and absolute ethanol according to the weight ratio of 1:3:3, after mixing, ultrasonically disperse at an ultrasonic frequency of 40KHz for 23min, and then Carry out suction filtration under the vacuum condition that vacuum degree is 0.098MPa, stop suction filtration when there is no more ethanol liquid dripping, take out filtrate, set aside;

[0027] Step 2. Put the filtrate obtained in step 1 in an oven, dry at 30°C×6h and preheat at 50°C×20min in sequence, take out the preheated material and place it in a press, Pre-press for 5 minutes under 2MPa pressure, then hot-press for 30 minutes at 5MPa and 150°C, and cool down to room temperature naturally to prepare alumina ceramic microcapsule powder for later use;

[0028] Step 3. Mix the organic binder with a weight ratio of 1:18 and the alumina ceramic microcapsule powder prepared in S...

Embodiment 3

[0032] The preparation method of the metal-ceramic composite body comprises the following steps: Step 1. Weigh microcapsule powder, alumina powder and absolute ethanol according to the weight ratio of 1:3:3, and after mixing, ultrasonically disperse at an ultrasonic frequency of 50KHz for 20 minutes, and then Carry out suction filtration under the vacuum condition that vacuum degree is 0.098MPa, stop suction filtration when there is no more ethanol liquid dripping, take out filtrate, set aside;

[0033]Step 2. Put the filtrate obtained in step 1 in an oven, dry at 30°C×6h and preheat at 50°C×20min in sequence, take out the preheated material and place it in a press, Pre-press for 5 minutes under 2MPa pressure, then hot-press for 30 minutes at 5MPa and 150°C, and cool down to room temperature naturally to prepare alumina ceramic microcapsule powder for later use;

[0034] Step 3, granulating the alumina ceramic microcapsule powder prepared in step 2 to obtain ceramic granules w...

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PUM

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Abstract

A preparation method for a metal ceramic composite comprises the steps of preparation of aluminium oxide ceramic microencapsulated powder, preparation of ceramic particles, preparation of metal ceramic particles and preparation of the metal ceramic composite. The prepared metal ceramic composite is of a structure composed of a ceramic layer, a metal ceramic composite transition layer and a metal layer from inside to outside, an even and compact product with the smooth surface is formed at a high temperature, the composite with the high hardness of ceramics and high toughness and plasticity of metal is formed, and the metal ceramic composite not only has good corrosion resistance and high temperature resistance of the ceramics, but also has the toughness and impact resistance of the metal, and has the characteristics of long service life and low mass.

Description

technical field [0001] The invention relates to the technical field of ceramics, in particular to a method for preparing a metal-ceramic composite. Background technique [0002] Applied to blast furnace loading, unloading trolleys, unloading chutes, sintering, coke and other raw material storage bottoms, because most of the loaded ore and coke have relatively sharp edges and corners, the wear and tear on the trolley / chute / bottom of the storage is relatively high serious. At the same time, due to the heavy weight of the feeder, the load of the steel wire rope, hoisting motor, and reducer is large, and it is easy to break down and cause major economic losses. The problem of wear and the weight of the feed truck itself; each feed truck weighs 9.3 tons, and the original design uses Mn13 liner, which has general wear resistance, short service life, large maintenance and repair volume, more capital for spare parts, and higher maintenance costs. high. Moreover, in iron and steel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/05C04B35/10
Inventor 贾玉川周宁生杨建森王书正
Owner 洛阳鹏飞耐磨材料股份有限公司
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