A metal ceramic preparing method

A cermet, high-temperature sintering technology, applied in the field of ceramics, can solve the problems of low tensile strength and flexural strength, achieve high flexural strength and tensile strength, simple production process, and overcome the effect of poor flexibility of ceramics

Inactive Publication Date: 2018-12-14
淄博新金亿陶瓷科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the tensile strength and flexural strength of the existing cermet preparation methods are low, and its performance needs to be improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The preparation method of the cermet of the present invention comprises the following steps:

[0020] The raw materials weighed according to parts by weight are respectively sent into a ball mill for ball milling, the rotating speed of the ball mill is 300rpm, and the ball milling time is 4h;

[0021] Send into high-speed mixer and carry out high-speed mixing, and the rotating speed of high-speed mixer is 250rpm;

[0022] Send it into a high-temperature sintering furnace for vacuum high-temperature sintering, the temperature of high-temperature sintering is 800°C, and the sintering time is 4h;

[0023] Cooling made cermet.

[0024] Among them, the raw materials are: 55 parts of ceramic powder, 10 parts of cobalt oxide, 10 parts of aluminum carbide, 5 parts of magnesium silicate, 5 parts of siliconized cobalt, 5 parts of ferrochrome oxide, 5 parts of chromium dioxide, 1 part of manganese silicide, nitrogen 7 parts of silicon oxide, 20 parts of shale, 15 parts of flux a...

Embodiment 2

[0027] The preparation method of the cermet described in the present embodiment comprises the following steps:

[0028] The raw materials weighed according to parts by weight are respectively sent into a ball mill for ball milling, the rotating speed of the ball mill is 400rpm, and the ball milling time is 3h;

[0029] Send into high-speed mixer and carry out high-speed mixing, and the rotating speed of high-speed mixer is 280rpm;

[0030] Send it into a high-temperature sintering furnace for vacuum high-temperature sintering, the temperature of high-temperature sintering is 900°C, and the sintering time is 3.5h;

[0031] Cooling made cermet.

[0032] Among them, the raw materials are: 65 parts of ceramic powder, 15 parts of cobalt oxide, 15 parts of aluminum carbide, 10 parts of magnesium silicate, 8 parts of siliconized cobalt, 8 parts of ferrochromium oxide, 8 parts of chromium dioxide, 5 parts of manganese silicide, nitrogen 10 parts of silicon dioxide, 30 parts of shale...

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PUM

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Abstract

The invention relates to a metal ceramic preparing method, belonging to the technical field of ceramic. The method includes separately feeding raw materials weighed according to weight parts into a ball mill and performing ball milling; feeding products into a high-speed mixer and performing high-speed mixing; feeding a mixture into a high-temperature sintering furnace, and performing vacuum high-temperature sintering; and cooling a product to obtain metal ceramic. The raw materials include 55-65 parts of ceramic powder, 10-15 parts of cobaltous oxide, 10-15 parts of aluminum carbide, 5-10 parts of magnesium silicate, 5-8 parts of cobalt silicide, 5-8 parts of oxidized ferrochromium, 5-8 parts of a compound named as Chinese characters 'eryanghuaqin' by the inventor, 1-5 parts of manganesesilicide, 7-10 parts of silicon nitride, 20-30 parts of flux, 15-23 parts of assistant flux and 8-10 parts of a waterproofing agent. The assistant flux is one or more selected from limestone, calcite,diopside, wollastonite, dolomite, talc and industrial waste slag. The production process is simple and the production cost is low. The prepared metal ceramic material is excellent in performance andhigh in stability.

Description

technical field [0001] The invention relates to a method for preparing cermets, belonging to the technical field of ceramics. Background technique [0002] Ceramic material is an inorganic non-metallic material made of natural or synthetic compounds after forming and high-temperature sintering. It has the advantages of high melting point and high hardness and is widely used in aerospace industry, mechanical engineering, electronics, automobiles, metallurgy, energy, etc. , biology and other fields, it is an indispensable key material in cutting-edge technology. Decoration of ceramic surfaces as exterior surfaces of equipment has become very important. [0003] Cermets In order to make ceramics resistant to high temperature and not easy to break, people add some metal powder to the clay for making ceramics, thus making cermets. However, the existing methods for preparing cermets have low tensile strength and flexural strength, and their properties need to be improved. Cont...

Claims

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Application Information

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IPC IPC(8): C04B35/00
CPCC04B35/00C04B2235/3241C04B2235/3272C04B2235/3275C04B2235/3445C04B2235/349C04B2235/3817C04B2235/3873C04B2235/3891
Inventor 孙兆波杨志刚苏红
Owner 淄博新金亿陶瓷科技有限公司
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