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Device for continuously sintering material product by microwave and realization thereof

A sintered material and microwave technology, which is applied to the device and realization field of microwave continuous sintered material products, can solve problems such as continuous sintering, and achieve the effects of fast sintering rate, simple structure and no environmental pollution

Inactive Publication Date: 2008-05-28
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]However, there is still no good way to implement continuous sintering of such diamond-tungsten carbide composite products

Method used

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  • Device for continuously sintering material product by microwave and realization thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: 200 sccm N is filled in the microwave sintering chamber 2 , Three pieces of diamond-tungsten carbide product slices are placed in a quartz crucible, and the quartz crucible is operated at a microwave power of 2000W for 15 minutes to achieve rapid microwave sintering.

Embodiment 2

[0025] Example 2: 200 sccm N is filled in the microwave sintering cavity 2 A slab of diamond-tungsten carbide product is placed in a quartz crucible, and the quartz crucible can be sintered by microwave under the microwave power of 2000W for 15 minutes.

Embodiment 3

[0026] Example 3: Under air conditions, two medium-thick alumina products were placed in a quartz crucible, and the quartz crucible was operated at a microwave power of 2000W for 15 minutes to achieve rapid microwave sintering.

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Abstract

The invention relates to a device for microwave continuous sintering of material products, which comprises a heating cavity, a microwave generator, a chargingline and a vacuumlead, a feeder arranged over the heating cavity and a feed-out implement arranged below the heating cavity. The feeder and the feed-out implement are both of two layers, wherein, the upper layer of the feeder is a rotary table and the lower layer is a fixed table, while the upper layer of the feed-out implement is a fixed table and the lower layer is a rotary table. The rotary table and the fixed table are respectively provided with a hole for silica crucible passing through when the two relatively moves until the holes align. The device can finish feeding, charging, vacuum pumping, pre-heating, microwave sintering, cooling and discharging, thus realizing microwave continuous sintering of the material products and continuous sintering of non-oxides and a plurality of oxides in the heating cavity. The device not only has simple structure, but also fast sintering rate without environmental pollution.

Description

technical field [0001] The invention relates to microwave sintered materials, in particular to a device and realization of microwave continuous sintered material products. Background technique [0002] Microwave sintering technology is a high-tech technology that uses microwave heating technology to sinter materials. It has uniform heating, low sintering temperature, short sintering time, selective heating, high energy utilization and heating efficiency, safety, sanitation, pollution-free, and easy implementation. Advantages such as industrial control, although it has only 20 years of development history, it has become a research and development hotspot in the field of ceramic materials and composite materials. Compared with conventional sintering, microwave sintering can significantly increase the densification rate of materials, refine grains and grain boundaries, improve the microstructure of materials, and thus greatly increase the strength of materials. Nowadays, micro...

Claims

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Application Information

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IPC IPC(8): C04B35/64
Inventor 周建陈进曾春年欧阳世翕
Owner WUHAN UNIV OF TECH
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