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

Active Publication Date: 2012-08-22
无锡康伟工程陶瓷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the powder material iron removal process is not performed on the raw material in the raw material ball mill, resulting in more impurities in the product and poor electrical performance
Pressing is a dry pressing molding process, which makes the ceramic force uneven, which is easy to cause uneven ceramic volume density, high at both ends and low in the middle, making the ceramic body easy to deform, low yield and high production cost
Using nickel plating process, the precipitation speed is relatively slow, not only low production efficiency, high production cost and not environmentally friendly

Method used

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

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Embodiment 1: A production method of a high-power ceramic output cap for microwaves, the proportion of its components is calculated in parts by weight, including the following process steps:

[0032] (1) Raw material ball mill: 90 parts of aluminum oxide, 1 part of calcium carbonate, 1 part of silicon oxide, 2 parts of kaolin, 1.5 parts of talcum powder, 1 part of zirconia, 5 parts of binder polyvinyl alcohol, 1 part of release type Agent stearate, 1 part of dispersant sodium polyacrylate and 1 part of defoamer polyester fiber are poured into a ball mill, and 60 parts of deionized water are added, and crushed at a speed of 30 rpm for 12 hours to obtain an average particle size It is a paste slurry of 1.5-10 microns; the paste slurry is dried with a spray granulation tower to obtain a granular powder with an average particle size of 40-60 microns;

[0033] (2) Raw material iron removal: put the granular powder obtained in step (1) into an iron removal device to remove ir...

Embodiment 2

[0040] Embodiment 2: A production method of a high-power ceramic output cap for microwaves, its component ratio is calculated in parts by weight, including the following process steps:

[0041] (1) Raw material ball milling: 94 parts of aluminum oxide, 2 parts of calcium carbonate, 2 parts of silicon oxide, 3 parts of kaolin, 2.5 parts of talcum powder, 2 parts of zirconia, 9 parts of binder polyvinyl alcohol, 2 parts of release type Agent stearate, 3 parts of dispersant sodium polyacrylate and 2 parts of defoaming agent polyester fiber are poured into a ball mill, and 70 parts of deionized water are added, and crushed at a speed of 40 rpm for 10 hours to obtain an average particle size It is a paste slurry of 1.5-10 microns; the paste slurry is dried with a spray granulation tower to obtain a granular powder with an average particle size of 40-60 microns;

[0042] (2) Raw material iron removal: put the granular powder obtained in step (1) into an iron removal device to remove...

Embodiment 3

[0049] Embodiment 3: A kind of production method of high-power ceramic output cap for microwave, its component ratio is counted by weight parts, comprises the following process steps:

[0050] (1) Raw material ball mill: 92 parts of aluminum oxide, 1.5 parts of calcium carbonate, 1.5 parts of silicon oxide, 2.5 parts of kaolin, 2 parts of talcum powder, 1.5 parts of zirconia, 7 parts of binder polyvinyl alcohol, 1.5 parts of release type Agent stearate, 2 parts of dispersant sodium polyacrylate and 1.5 parts of defoamer polyester fiber are poured into a ball mill, and 65 parts of deionized water are added, and the average particle size is obtained by pulverizing at a speed of 35 rpm for 11 hours It is a paste slurry of 1.5-10 microns; the paste slurry is dried with a spray granulation tower to obtain a granular powder with an average particle size of 40-60 microns;

[0051] (2) Raw material iron removal: put the granular powder obtained in step (1) into an iron removal device ...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B6/64C04B35/10C04B41/89
Inventor 王伟
Owner 无锡康伟工程陶瓷有限公司
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