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A kind of processing method of temperature-controlled ceramics

A processing method and technology of ceramics, applied in the field of ceramics, can solve the problem of poor sensor accuracy and can not achieve accurate temperature control, etc., and achieve the effect of simple method and high temperature control accuracy.

Active Publication Date: 2016-06-15
曹艺佳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Now in the field of electricity, there are also many ceramics for electrical applications, such as insulating ceramics for insulation, conductive ceramics, etc. In the field of temperature control devices, there are many temperature control sensors, but in some special fields, such as high temperature and high pressure conditions, sensor accuracy It is poor and cannot achieve the effect of precise temperature control

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A method for processing temperature-controlled ceramics, which is prepared by weight from the following raw materials: 13 parts of aluminum hydroxide, 25 parts of polysilicon, 42 parts of iron oxide, 37 parts of lapis lazuli, 13 parts of graphite, and 16 parts of indium;

[0014] The specific steps are as follows: (1) Grind lapis lazuli, polysilicon and graphite using a ball mill, pass through a 200-mesh sieve, and then mix them evenly;

[0015] (2) Calcinate the above-mentioned raw materials at 1245.8°C for 35min under the protection of nitrogen, then slowly lower the temperature at a rate of 2.5°C / min, grind with a ball mill after cooling, and pass through a 320-mesh sieve;

[0016] (3) The powder obtained in step (2) is pulverized and mixed with iron oxide, aluminum hydroxide, and indium, and molded into a compact with a molding pressure of 500MPa, and then fired at 1338°C for 1-1.5h, with a temperature rise of 12.6 °C / min, and then lower the temperature at a rate of...

Embodiment 2

[0019] A processing method for temperature-controlled ceramics. The weight ratio of each raw material is as follows: 15 parts of aluminum hydroxide, 22 parts of polysilicon, 39 parts of iron oxide, 35 parts of lapis lazuli, 12 parts of graphite, and 16 parts of indium.

[0020] The specific steps are as follows: (1) Grind lapis lazuli, polysilicon and graphite using a ball mill, pass through a 200-mesh sieve, and then mix them evenly;

[0021] (2) Calcinate the above-mentioned raw materials at 1267°C for 48 minutes under the protection of nitrogen, and then slowly lower the temperature at a rate of 2.5°C / min. After cooling, use a ball mill to grind and pass through a 320-mesh sieve;

[0022] (3) Pulverize and mix the powder obtained in step (2) with iron oxide, aluminum hydroxide, and indium, and mold it into a compact with a molding pressure of 500 MPa, and then burn it at 1341°C for 1.2h, with a temperature rise of 12.6°C / min, and then lower the temperature at a rate of 3.8...

Embodiment 3

[0025] A method for processing temperature-controlled ceramics, prepared by weight from the following raw materials: 15 parts of aluminum hydroxide, 26 parts of polysilicon, 40 parts of iron oxide, 40 parts of lapis lazuli, 15 parts of graphite, and 16.5 parts of indium;

[0026] The specific steps are as follows: (1) Grind lapis lazuli, polysilicon and graphite using a ball mill, pass through a 200-mesh sieve, and then mix them evenly;

[0027] (2) Calcinate the above-mentioned raw materials at 1264°C for 50 minutes under the protection of nitrogen, and then slowly lower the temperature at a rate of 2.5°C / min. After cooling, use a ball mill to grind and pass through a 320-mesh sieve;

[0028] (3) Pulverize and mix the powder obtained in step (2) with iron oxide, aluminum hydroxide, and indium, and mold it into a compact with a molding pressure of 500 MPa, and then burn it at 1342°C for 1.2h, with a temperature increase of 12.6°C / min, and then lower the temperature at a rate ...

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PUM

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Abstract

The invention relates to a processing method of temperature-controlled ceramic. The temperature-controlled ceramic is prepared from the following raw materials in parts by weight: 13-16 parts of aluminum hydroxide, 21-26 parts of polycrystalline silicon, 33-42 parts of iron oxide, 35-42 parts of celestite, 12-15 parts of graphite and 15-17 parts of indium. The temperature-controlled ceramic provided by the invention is a conductor at 1225-1260 DEG C, and is an insulator when exceeding the temperature; temperature control is achieved through connection of the temperature-controlled ceramic in a heating circuit; and the temperature-controlled accuracy can be + / -0.001 DEG C.

Description

technical field [0001] The invention belongs to the field of ceramics, and in particular relates to a processing method of temperature-controlled ceramics. Background technique [0002] Ceramics are materials and various products made of clay as the main raw material and various natural minerals through pulverization, mixing, molding and calcination. People make a kind of clay and fire it at high temperature in a special kiln called ceramics. Now in the field of electricity, there are also many ceramics for electrical applications, such as insulating ceramics for insulation, conductive ceramics, etc. In the field of temperature control devices, there are many temperature control sensors, but in some special fields, such as high temperature and high pressure conditions, sensor accuracy Poor can not achieve the effect of precise temperature control. Contents of the invention [0003] The object of the present invention is to provide a processing method for temperature-cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/26C04B35/622
Inventor 曹艺佳
Owner 曹艺佳