Test device for heat-resistant material performance test

Abstract

The invention relates to a test device for a heat-resistant material performance test. The test device comprises an inner shell and an outer shell which are coaxially arranged, and a cooling water channel is formed between the outer shell and the inner shell; a connecting ring is arranged on the periphery of one end of the inner shell, the inner shell is connected with one end of the outer shell through a connecting ring, and a water inlet and a water outlet are formed in the connecting ring and communicated with the cooling water channel, so that the cooling water enters from the water inlet,flows through the cooling water channel and then flows out of water outlet; a first mounting cavity used for installing a to-be-tested mold and a second mounting cavity used for allowing a thermocouple device to penetrate through are formed in the end, away from the connecting ring, of the inner shell in sequence in the axial direction of the inner shell, the to-be-tested mold is prepared from aheat-resistant material, and the thermocouple device is used for detecting the temperature of the to-be-tested mold. According to the test device, longitudinal heat conduction of the heat-resistant material in the evaluation process can be effectively reduced, and it is ensured that the surface of the to-be-tested model is heated uniformly and heat conduction of the heat-resistant material is quasi one dimensional conduction.

Description

technical field [0001] The invention belongs to the technical field of performance assessment equipment for heat-resistant materials, and in particular relates to a test device for performance assessment of heat-resistant materials. Background technique [0002] In order to ensure the reliability of the thermal protection system design of hypersonic vehicles, the performance of the thermal protection materials must be assessed on the ground, and the ground equipment is used to simulate the high-enthalpy heating flow field environment, and a long-term assessment test is carried out. At present, the most commonly used method is to process the model into a spherical cylinder model or a flat plate model, place it in a high-temperature flow field, and evaluate its heat resistance performance. [0003] The material assessment test using the ball-column model simulates the stagnation point heat flow and stagnation point pressure of the material in the high-temperature flow field, w...

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