Rapid thermal shock resistance examination testing device

Abstract

The invention provides a rapid thermal shock resistance examination testing device. The device comprises a flame heating system, a sample clamping motion device, a gas cooling device, a temperature measuring device and a control system, wherein the flame temperature of the flame heating system can reach 3000 DEG C, the sample clamping motion device can move in a three-dimensional direction to adjust the spatial position of a sample clamp, the sample clamp adopts a double-layer hollow water cooling structure, circulating water is introduced into the middle portion of the sample clamp for cooling, the temperature measuring device consists of a thermocouple and a double-color comparison infrared thermometer and can record temperature change curves of the surface and the back of a sample in a testing process in real time, and the device is high in thermal shock resistance examination testing temperature, adjustable in thermal shock resistance examination testing temperature, high in heating and cooling speed, simple in structure, convenient to install the sample and high in practicability.

Description

technical field [0001] The invention relates to the field of performance evaluation of high-temperature-resistant materials, and specifically refers to a rapid thermal shock resistance assessment and testing device for high-temperature-resistant materials or components. Background technique [0002] Thermal shock resistance is the ability of materials or components to resist sudden changes in external temperature without causing damage. It is an important indicator for evaluating the damage resistance of materials. Before the actual use of materials, their thermal shock resistance needs to be evaluated. In the existing Among the test methods for thermal shock resistance of materials, quenching technology is the most widely used research method. It first heats the sample in a furnace, then quenches and cools it in air, water or oil, and then, the residual Mechanical properties were measured to characterize its thermal shock resistance. [0003] High-temperature-resistant mat...

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Problems solved by technology

[0003] High-temperature-resistant materials and components in aerospace and other fields have served in high-temperature thermal shock environments for a long time, and their thermal shock resistance performance at high temperatures must be evaluated. For ceramic materials, on the one hand, the test temperature for thermal shock resistance assessment is lower, generally at 1500 o Below C, it is difficult to meet the thermal shock test requirements of materials at higher temperatures; on the other hand, the heating rate of the thermal shock resistance assessment test device is low, resulting in a long test period and high cost of thermal shock resistance. New thermal shock resistance test device with high temperature and high heating rate

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