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High-strength ceramic material for frequency convertor and preparation method of high-strength ceramic material

A technology of ceramic materials and frequency converters, which is applied in the field of numerical control, can solve problems such as no relevant research reports, and achieve the effects of simple and easy preparation methods, solving brittleness and easy fracture, and relatively light weight

Inactive Publication Date: 2019-03-19
南京美克斯精密机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Effectively combining metal-ceramic composite materials in electronic components such as frequency converters, this method has not yet been reported, and will have great research potential and development prospects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for preparing a high-strength ceramic material used in frequency converters, comprising the following steps:

[0027] 1) According to the mass ratio, after mixing 70 parts of the ceramic matrix with 50 parts of the metal composite material and 10 parts of the organic polymer material, the ceramic powder is pre-fired. , whiskers, platinum catalyst, hydrogen-containing silicone oil, and a whisker-reinforced organic material composed of a coupling agent; the components of the metal composite material are calculated in parts by weight: 30 parts of nano-molybdenum carbide, 5 parts of cobalt, 10 parts of chromium, 7 parts of niobium carbide, 0.5 parts of zirconia, 5 parts of silicon carbide, 4 parts of copper, 3 parts of cerium oxide, 2 parts of aluminum oxide, 3 parts of thorium oxide, 0.5 part of tungsten, 1 part of titanium powder;

[0028] 2) adding a modification aid to the ceramic powder obtained in step 1) for grinding for 1 hour, and performing spray granulat...

Embodiment 2

[0038] A method for preparing a high-strength ceramic material used in frequency converters, comprising the following steps:

[0039] 1) According to the mass ratio, after mixing 80 parts of the ceramic matrix with 70 parts of the metal composite material and 20 parts of the organic polymer material, the ceramic powder is pre-fired, and the organic polymer material is made of silicone resin, thermally conductive insulating filler , whiskers, platinum catalyst, hydrogen-containing silicone oil, and a whisker-reinforced organic material composed of a coupling agent; the components of the metal composite material are calculated by weight: 45 parts of nano-molybdenum carbide, 15 parts of cobalt, 15 parts of chromium, 20 parts of niobium carbide, 2 parts of zirconia, 10 parts of silicon carbide, 9 parts of copper, 5 parts of cerium oxide, 3 parts of aluminum oxide, 5 parts of thorium oxide, 1.5 parts of tungsten, 2 parts of titanium powder;

[0040] 2) adding modification aids to the...

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Abstract

The invention discloses a preparation method of a high-strength ceramic material for a frequency converter. The preparation method comprises the following steps that (1) according to the mass ratio, 70-80 parts of a ceramic matrix is mixed with 50-70 parts of a metal composite material and 10-20 parts of an organic polymer material, and then pre-sintering is conducted to synthesize ceramic powder;(2) a modified additive is added into the ceramic powder obtained in the step (1) to be ground for 1-2 h, and spray granulation is conducted at 180-220 DEG C to obtain ceramic granules; (3) the ceramic granules obtained in the step (2) are pre-pressed and subjected to isostatic forming at 600-680 MPa to obtain a ceramic blank; (4) the ceramic blank obtained in the step (3) is sintered at 1250-1300 DEG C in the nitrogen atmosphere to obtain a ceramic sheet; and (5) a silver electrode is sputtered or subjected to sintering permeation on the ceramic sheet obtained in the step (4), and polarization is conducted. The weakness that the ceramic material is brittle and prone to being fractured is avoided, the toughness and reliability of the ceramic material are enhanced, and the ceramic materialis suitable for electronic components and meanwhile has the advantages of both high strength and high toughness.

Description

technical field [0001] The invention belongs to the technical field of numerical control, in particular to the technical field of preparation of electronic component materials, in particular to a high-strength ceramic material used in frequency converters and a preparation method thereof. Background technique [0002] Numerical control technology is a technology that uses digital information to control mechanical movement and working process. Numerical control equipment is a mechatronic product formed by the penetration of new technologies represented by numerical control technology into traditional manufacturing industries and emerging manufacturing industries, so-called digital equipment , such as CNC machine tools, etc. Its technology involves many fields: (1) mechanical manufacturing technology; (2) information processing, processing, transmission technology; (3) automatic control technology; (4) servo drive technology; (5) sensor technology; (6) software technology Wai...

Claims

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Application Information

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IPC IPC(8): C22C29/02C22C29/16C22C1/05C22C1/10
CPCC22C29/02C22C1/051C22C29/005C22C29/16
Inventor 夏天明
Owner 南京美克斯精密机械有限公司
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