Ultra-high temperature long-term mechanical testing system for configuring thermal insulation air-cooling clamp

Abstract

The invention discloses an ultra-high temperature long-term mechanical testing system for configuring a thermal insulation air-cooling clamp. The system comprises an ultra-high temperature heating surface, a thermal insulation air-cooling clamp, a transition clamp and like components; the ultra-high-temperature heating surface is used for realizing predetermined testing temperature and precision thereof; the thermal insulation air-cooling clamp is compatible with a thermal insulation function of a ceramic material and an airflow cooling function in the cavity; the transition clamp mainly bearsthe mechanical load. The testing system disclosed by the invention has the advantages that the ultra-high temperature long-term mechanical testing system is simple in structure, the temperature is always maintained at a low level by reasonably designing the thickness of a thermal insulation air-cooling clamp cavity and adjusting the pressure and flow velocity of the cooling gas in the cavity, sothat the long-thermal mechanical performance testing of the ultra-high temperature structure material under the ultra-high temperature environment can be realized by selecting the common high-temperature alloy.

Description

technical field [0001] The present invention proposes an ultra-high temperature long-term mechanical property test system equipped with heat-insulated and air-cooled fixtures, which is used for comprehensive mechanical property tests such as axial fatigue and durability / creep of ultra-high temperature structural materials, and belongs to the mechanical property test technology of high temperature structural materials field. Background technique [0002] With the rapid progress and vigorous development of advanced aviation and aerospace engine technology, higher and higher requirements are put forward for the comprehensive performance of high-temperature structural materials, especially the demand for improving the temperature-bearing capacity of high-temperature structural materials is becoming more and more urgent. The operating temperature of traditional nickel-based and cobalt-based superalloys is within 1100°C (including the use of cooling technology), which is close to ...

AI Technical Summary

Problems solved by technology

If the design and preparation technology of high-temperature fixtures are not overcome, the long-term mechanical performance test of ultra-high-temperature structural materials is almost empty talk, and it will not be able to meet the urgent needs of ultra-high-temperature structural materials in the fields of aviation and aerospace at present and in the future.

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