A method and device for detecting the compression failure temperature of a material
A detection method and technology of detection device, which are applied in the direction of measuring device, analyzing material, testing material strength by applying stable tension/pressure, etc. Time, material saving, efficiency gains
Active Publication Date: 2020-05-12
SHENYANG AEROSPACE UNIVERSITY
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- Abstract
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Problems solved by technology
This not only causes a lot of waste of manpower, material resources and financial resources, but also increases the workload and reduces the efficiency. Especially in some cases, the number of workpieces is limited or the price is very expensive, which makes it difficult to conduct the test or the cost is too high.
Method used
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Embodiment 1
[0038] The material to be tested is made into a standard size sample, and heating rings are respectively installed at 5 positions in the axial direction of the material to be tested, and a heat insulation layer is set between the heating ring and the material to be tested; then put into the compression performance testing machine, pass The positioning and clamping device fixes and clamps both ends of the material to be tested; the heat insulation layer is a fiber reinforced plastic plate, which is pasted on the material to be tested; the material of the heating ring is copper, and the inner diameter of the heating ring is the same as the material to be tested with the heat insulation layer pasted The outer diameter matches;
[0039] A heating ring resistance wire is arranged on the heating ring, and the heating ring resistance wire is connected to the resistance wire of the temperature control box through a wire, and the heating ring is energized and heated through the temperat...
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Abstract
Provided is a method and device for detecting a compression breakage temperature of a material. The method comprises the steps that (1) heating rings are arranged at a plurality of different positionsof a to-be-detected material, a thermal-protective coating is arranged between each heating ring and the to-be-detected material; then the to-be-detected material is fixedly clamped in a compressionperformance test machine; (2) the heating rings are powered on for heating, so that different parts of the to-be-detected material are heated to different temperatures; (3) compression test is conducted on the to-be-detected material through the compression performance test machine, and the compression breakage temperature is determined according to the position where breakage occurs firstly. Thedevice comprise a fixture, a temperature control box and a heating device, wherein the heating device is composed of a plurality of heating rings, a thermocouple and the thermal-protective coating, and each heating ring is provided with a resistance wire connected with the temperature control box. The method and device for detecting the compression breakage temperature of the material have the advantage that the compression breakage temperature of the material can be tested quickly by one workpiece, so that the detection efficiency is improved.
Description
technical field [0001] The invention belongs to the technical field of material detection, in particular to a method and device for detecting the compression failure temperature of a material. Background technique [0002] In the aerospace field, there are a large number of composite material or laminated material workpieces. Due to the limitation of their internal performance, they generally have the disadvantage of being greatly affected by temperature; however, in the process of workpiece processing, they must be affected by heat, and in Cutting heat generated during machining may invalidate its properties. [0003] As the processing temperature continues to increase, the performance of the workpiece at the processing position gradually decreases. At this time, under the action of the cutting force, it is easy to cause damage such as delamination at the processing position, thereby seriously reducing the processing quality of the workpiece; therefore, it is necessary to s...
Claims
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IPC IPC(8): G01N3/08G01N3/02
CPCG01N3/02G01N3/08G01N2203/0019G01N2203/0222
Inventor 王奔杨博文郑耀辉李晓鹏孔宪俊
Owner SHENYANG AEROSPACE UNIVERSITY