High-power ceramic output cap for microwaves and production method thereof

A production method and high-power technology, applied in the direction of microwave heating, etc., can solve the problems of uneven ceramic volume density, easy deformation of ceramic body, uneven force of ceramics, etc., so as to improve the pass rate of ceramics, avoid ceramic lack of porcelain, The effect of fast precipitation
CN102076133BActive Publication Date: 2012-08-22无锡康伟工程陶瓷有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
无锡康伟工程陶瓷有限公司
Publication Date
2012-08-22

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Abstract

The invention relates to a high-power ceramic output cap for microwaves and a production method thereof. The production method comprises the following process steps of: (1) pouring aluminium oxide, calcium carbonate, silicon oxide, kaolin, talcpowder, zirconium oxide, a binding agent, a parting agent, a dispersing agent and a defoaming agent into a ball mill, adding deionized water, crushing to obtain pasty slurry, and drying in a spray drying tower to obtain granular powder; (2) removing iron from the granular powder; (3) pressing the granular powder into a ceramic tube blank; (4) turning; (5) sintering; (6) printing a primary metalizing paste on the surface at one end of the ceramic tube blank; (7) sintering the ceramic tube blank in a tunnel kiln type hydrogen furnace in the hydrogen / nitrogen mixed atmosphere; and (8) printing a secondary metalizing paste on the surface at one end of the primarily metalized ceramic tube blank, and sintering to obtain the ceramic output cap. Imperfect ceramic in the production process is avoided and the yield of ceramic is improved; and the sintering shrinkage rate is low, the mold cost is low and the production efficiency is high.
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Description

technical field

[0001] The invention relates to a metallized ceramic output cap used for microwave heating produced by industrial microwave heating tubes, in particular to a high-power ceramic output cap for microwaves and a production method thereof. Background technique

[0002] At present, the raw materials used in high-power ceramic output caps for microwaves are mainly made of aluminum oxide, calcium carbonate, silicon oxide, kaolin and talcum powder. In the production process, ceramics lack porcelain, and the defect rate is high.

[0003] Because its production method mainly includes steps such as raw material ball milling, granulation, isostatic pressing, turning, sintering, silk screen printing, and metallization. Among them, in the raw material ball mill, the powder material iron removal process is not performed on the raw material, resulting in more impurities in the product and poor electrical properties. Pressing is a dry pressing molding process, which makes t...

Claims

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