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Non-contact heating method and device for high-temperature material

A high-temperature material, non-contact technology, applied in induction heating devices, induction heating and other directions, can solve the problems of inability to adjust the pressure of the oxidizing atmosphere, deviation of the high temperature anti-oxidation performance, difficult to adjust the temperature, etc., to achieve low cost, adjustable atmosphere, Fast heating effect

Inactive Publication Date: 2012-11-21
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the equipment for evaluating and researching the high-temperature oxidation resistance of high-temperature structural materials is mainly a high-temperature oxidation furnace or an oxyacetylene flame. The high temperature is 2800°C, but the temperature is difficult to adjust, and the error is 100-300°C, which makes the results of the assessment and research on the high-temperature oxidation resistance of materials have large deviations

Method used

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  • Non-contact heating method and device for high-temperature material

Examples

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Comparison scheme
Effect test

Embodiment 1

[0019] Example 1, using the method and device of the present invention to heat the zirconium boride-silicon carbide-graphite ceramic matrix composite material.

[0020] The length of the quartz tube is 500mm, the outer diameter of the tube is 40mm, the size of the heated material (sample) is 20×20×3mm, and the surface of the sample is polished to a smoothness of less than 1 μm with diamond abrasive paste.

[0021] The expected technical indicators are as follows: the gas pressure in the quartz tube is 50±10Pa, the gas flow rate is 100±10ml / s, the surface temperature of the sample is 1500±30°C, and the temperature is kept for 5 minutes.

[0022] The power supply of the high-frequency oscillating magnetic field generator is three-phase 380V, 50Hz, the input power is 30kW, the oscillation frequency is 15kHz, the number of turns of the coil made of copper tube is 3 turns, and the inner diameter of the coil is 60mm. is 5mm.

[0023] The heating device is as shown in the accompanyi...

Embodiment 2

[0026] Example 2, using the method and device of the present invention to heat the zirconium boride-silicon carbide-graphite ceramic matrix composite material.

[0027] The length of the quartz tube is 500mm, the outer diameter of the tube is 50mm, the size of the material to be heated is: 25×25×4mm, and the surface treatment of the material is the same as in Example 1.

[0028] The technical indicators expected to be achieved in this embodiment are as follows: the gas pressure in the quartz tube is 1000±50Pa, the gas flow rate is 200±15ml / s, the surface temperature of the sample is 1600±40°C, and the temperature is kept for 5 minutes.

[0029] The equipment operation process is the same as embodiment 1, and the parameters are: the power supply of the high-frequency oscillating magnetic field generator is three-phase 380V, 50Hz, the input power is 40kW, the oscillation frequency is 20kHz, the number of turns of the coil made of copper tube is 4, and the inner diameter of the coil...

Embodiment 3

[0032] Example 3, using the method and device of the present invention to heat the zirconium boride-silicon carbide-graphite ceramic matrix composite material.

[0033] The length of the quartz tube is 400 mm, the outer diameter of the tube is 50 mm, the size of the heated material (sample) is 20×20×8 mm, and the surface treatment of the material is the same as in Example 1.

[0034] The technical indicators expected to be achieved in this embodiment are as follows: the pressure of the gas in the quartz tube is 5000±100Pa, the gas flow rate is 500±25ml / s, the surface temperature of the sample is 1700±50°C, and the temperature is kept for 5 minutes.

[0035] The equipment operation process is the same as that in Embodiment 1. The power supply of the high-frequency oscillating magnetic field generator is three-phase 380V, 50Hz, the input power is 50kW, and the oscillation frequency is 25kHz; the number of turns of the coil made of copper tube is 5 turns, the inner diameter of th...

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Abstract

The invention belongs to the technical field of high-temperature material, and relates to a non-contact heating method and device for studying the high-temperature anti-oxidation performance of high-temperature material. The method is characterized in that: the heated material is placed on a bracket in a sealed quartz tube; a coil made from a copper tube is wound outside the quartz tube; circularcooling water is filled into the copper tube; a fast alternating magnetic field is applied to the material through the coil by use of a high-frequency oscillation magnetic field generator so as to heat the material; a computer data acquisition and control system is used for adjusting the input power of the high-frequency oscillation magnetic field generator according to the temperature signal so as to obtain the set temperature of the material; and an air inlet and pressure control system connected with a sealing member is used for adjusting the air and air pressure in the quartz tube. Through the invention, quick and accurate heating of the material can be realized, the temperature rise speed, the heating time, the temperature and the like can be automatically adjusted, the greatest heating rate is 500 DEG C / min, and the highest temperature can reach 2000 DEG C.

Description

technical field [0001] The invention belongs to the technical field of high-temperature materials, and relates to a method and a device required for studying high-temperature oxidation resistance of high-temperature materials, in particular to a non-contact heating method and device for conductive high-temperature materials. Background technique [0002] With the rapid development of new technologies such as aviation, atomic energy, and smelting, the use conditions of high-temperature material structures in some application backgrounds are becoming more and more stringent. For example, structural components used for hypersonic flight require materials with good high-temperature performance to adapt to harsh How to improve the high-temperature oxidation resistance of materials is the main issue that people pay attention to at present. [0003] At present, the equipment for evaluating and researching the high-temperature oxidation resistance of high-temperature structural mate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B6/10H05B6/02
CPCH05B6/10
Inventor 王智武湛君王奕首史国栋严佳柳敏静
Owner DALIAN UNIV OF TECH