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High-temperature mechanical simulation and in-situ observation device

A high-temperature mechanics and observation device technology, which is applied to measuring devices, scientific instruments, instruments, etc., can solve problems such as difficult in-situ observation and slow heating speed

Pending Publication Date: 2020-12-22
李旋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are the following disadvantages during use: (1) The heating speed is slow (2) One end of the sample is fixed during the loading process, and the other end is gradually loaded to make the sample stretch, so the observation field of view moves, and it is difficult to observe changes in a specific area in situ process; (3) The fixture and the sample are placed in the high temperature environment box at the same time, and the fixture must be made of high temperature resistant material

Method used

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  • High-temperature mechanical simulation and in-situ observation device

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Such as figure 1 As shown, a high-temperature mechanical simulation and in-situ observation device includes a motor 1, a gear 2, a worm 3, a bearing support seat 4, a turbine 5, a transmission seat 6, a left and right screw rod 7, a nut seat 8, and a stress sensor 9 , clamp 10, screw support seat 11, sample 12, high temperature environment box 13; wherein the worm 3 and the bearing support seat 4 are connected by bearings, and the worm 3 and the turbine 5 are engaged to form a reduction mechanism; the left and right screw rods 7 and the transmission seat 6 and the screw support seat 11 are connected by bearings; the fixture 10 on the left is connected to the nut seat 8 on the left through a stress sensor 9; the motor 1 is used to control the magnitude and frequency of stress; the high temperature environment box 13 is used to simulate a high temperature environment.

[0036] Such as figure 2 As shown, the high temperature environment chamber 13 includes a main body te...

Embodiment 2

[0057] The difference between this embodiment and embodiment 1 is that the material of the test piece 12 is a low carbon steel bar, its length is 100 mm, and its diameter is 3 mm. 18 is made of 1Cr18Ni9Ti stainless steel wire with a diameter of 0.15mm. The diameter of the magnetic ball 23 is 200μm. The surface of the magnetic ball 23 is coated with barium strontium niobate piezoelectric coating. The inner diameter of the Y-shaped high-temperature resistant rubber sealing ring is 3.3mm. Y-type high temperature resistant rubber sealing ring is a double fluorine rubber ring containing nano-magnesia. The surface of nano-magnesia is modified by magnesium stearate and maleic anhydride. Magnesium stearate 10 times the amount of nano-magnesium oxide mixed and added to the beaker, poured into an appropriate amount of ethyl acetate to obtain a mixed solution, the addition of ethyl acetate is equivalent to 20 times the amount of magnesium stearate weight; Stir in a magnetic stirrer at 90...

Embodiment 3

[0059] The difference between this embodiment and embodiment 1 is that the material of the test piece 12 is an aluminum alloy rod, its length is 80mm, and its diameter is 4mm. Made of 0Cr18Ni9Ti stainless steel wire and 1Cr18Ni9Ti stainless steel wire, the diameters are 0.08mm and 0.12mm respectively, the diameter of the magnetic ball 23 is 100μm, the surface of the magnetic ball 23 is covered with barium titanate piezoelectric coating, and the Y-shaped high temperature resistant rubber is selected The inner diameter of the sealing ring is 4.1mm. The Y-type high-temperature-resistant rubber sealing ring is a bifluororubber ring containing nano-alumina. The surface of the nano-alumina is modified by magnesium stearate and maleic anhydride. The modification process is: first Magnesium stearate is mixed with nano-alumina equivalent to 13 times the amount of magnesium stearate and added to a beaker, and an appropriate amount of ethyl acetate is poured into it to obtain a mixed solu...

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Abstract

The invention discloses a high-temperature mechanical simulation and in-situ observation device which comprises a high-temperature environment box (13), a sample (12) transversely penetrates through the middle of the high-temperature environment box (13), the two ends of the sample (12) are both located on the outer side of the high-temperature environment box (13), and the two ends of the sample(12) are connected with a load unit through clamps (10). The high-temperature mechanical simulation and in-situ observation device provided by the invention can realize in-situ observation of high-temperature service behaviors, and different from a traditional high-temperature testing machine, the device uses the left-handed and right-handed screw rods, the two ends of a sample move relatively inthe loading process, and the center of the sample is kept still, so that in-situ observation of a specific area can be realized. The device is simple in structure, low in cost, easy and convenient tooperate and complete in function, and scientific and real experiment results can be obtained.

Description

technical field [0001] The invention relates to a high-temperature mechanical simulation and in-situ observation device, which is suitable for simulating and observing the high-temperature mechanical behavior of materials in situ, and belongs to the technical field of material testing. Background technique [0002] The change of mechanical behavior of materials in a high-temperature environment is a common concern of material researchers. Simulating and observing the high-temperature mechanical behavior of materials in situ is the key to evaluating the high-temperature service of materials. At present, high-temperature testing machines are mainly used to evaluate the high-temperature mechanical behavior of materials, as described in the published patent (CN 107607411 A). The high-temperature testing machine usually uses resistance wire heating, and the fixture needs to be placed in the environmental chamber together with the sample during the experiment. There are the follo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/00H05B3/42
CPCG01N25/00H05B3/42
Inventor 李旋巨佳
Owner 李旋
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