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Automatic testing device for thermal shock property and thermal cycle oxidation property

A test device and thermal cycle technology, applied to measuring devices, mechanical devices, instruments, etc., can solve the problems of high energy consumption, energy waste, late night and early morning work, etc.

Active Publication Date: 2014-12-24
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the sample is taken out and cooled during the test, the heating furnace is in the no-load stage, the power of the heating furnace is high, and the energy consumption is large, resulting in energy waste
If you put another batch of samples when taking out the test, it will easily lead to working late at night and early in the morning.

Method used

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  • Automatic testing device for thermal shock property and thermal cycle oxidation property
  • Automatic testing device for thermal shock property and thermal cycle oxidation property
  • Automatic testing device for thermal shock property and thermal cycle oxidation property

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1 thermal shock test

[0037] In order to evaluate the thermal shock performance of TC4 titanium alloy micro-arc oxidation ceramic coating, the coating sample 1 with the surface of TC4 treated by micro-arc oxidation is suspended under the first furnace cover 4, and the second furnace cover 9 is buckled on the heating furnace. The furnace temperature was set at 800°C. After the temperature is constant, start the setting program, the first furnace cover 4 and the second furnace cover 9 quickly complete the alternation, the sample under the first furnace cover 4 is in a heating state, and the coated sample 2 after the same treatment is hung on the second furnace cover The second furnace cover is lowered 9 times. According to the program setting, after 10 minutes, the heating furnace cover is quickly alternated to realize the alternation of samples, and the alternate samples are placed in the first cooling medium holding container 5 equipped with cooling water f...

Embodiment 2

[0038] Embodiment 2 Thermal shock performance comparison test

[0039] In order to evaluate the thermal shock performance of thermal barrier coatings with two different thicknesses of superalloys, four samples were prepared, sample 1 and sample 2 as a group, sample 3 and sample 4 as a second group, and each group The two samples have the same thickness and are parallel samples. A group of two samples was suspended under the first furnace cover 4, and the temperature of the heating furnace was set at 1000°C. After the temperature is constant, start the setting program, the first furnace cover 4 and the second furnace cover 9 quickly complete the alternation, the samples under the first furnace cover 4 are in a heating state, and at the same time, the second group of thermal barrier coating samples with different thickness Piece 3 and sample piece 4 are suspended under the second furnace cover 9 . According to the program setting, after 10 minutes, the heating furnace cover is...

Embodiment 3

[0040] Embodiment 3 thermal cycle oxidation test

[0041] Suspend a weighed TC4 titanium alloy sample and a sample (TMAO) treated by micro-arc oxidation on the surface of TC4 under the first furnace cover 4, and buckle the second furnace cover 9 on the heating furnace, and heat The furnace temperature was set at 750°C. After the temperature is constant, start the setting program, the first furnace cover 4 and the second furnace cover 9 quickly complete the alternation, the sample under the first furnace cover 4 is in a heating state, and the second TC4 sample that has been weighed and The second TMAO sample is suspended under the second furnace cover 9 . After 10 hours, the equipment automatically completes the sample alternation. At this time, take off the two samples under the first furnace cover 4, weigh them and record them, and observe the surface morphology of the samples at the same time, then put the samples back and wait for the next time. Oxidation by heating. Aft...

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PUM

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Abstract

The invention belongs to a coating property testing technology and discloses a testing device for the thermal shock property and the thermal cycle oxidation property. The device comprises a heating furnace, a support, a specimen bracket, three sets of stepping motors, a controller and a cooling medium, wherein the heating furnace is a vertical heating furnace and provided with an upward opening, so that specimens can go in and out conveniently; the support mainly plays a role in fixing the stepping motors and the controller; two furnace lids are arranged on the specimen bracket, the specimens can be hung below the furnace lids, and the two furnace lids can be used alternately to guarantee the temperature of a furnace chamber; the controller controls the stepping motors through a set program; the stepping motors control specimen passing speeds and directions as well as alternation of the furnace lids; the cooling medium is provided for a thermal shock test and can realize water cooling or air cooling.

Description

technical field [0001] The invention relates to a simple automatic experiment device, in particular to a thermal shock test and thermal cycle oxidation test device. Background technique [0002] Thermal shock performance is mostly used to evaluate the spalling resistance of thermal barrier coating samples in alternating cold and hot environments. Usually, the laboratory uses a flame or a heating furnace to heat the thermal shock performance, keep it warm for a certain period of time, and then cool it in air or water, and then observe the initiation, expansion and coating of thermal shock cracks on the coating surface after different cycles. Peeling, thus evaluating the thermal shock performance of the coating. [0003] Oxidation resistance mostly refers to the ability of materials to resist the corrosion of oxygen in the air or in other oxidizing atmospheres at high temperatures. In the anti-oxidation performance test, usually use a heating furnace to heat, keep warm for a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/04G01N17/00
Inventor 张津李洪毛政何业东
Owner UNIV OF SCI & TECH BEIJING
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