A fixture and clamping method for testing the ultra-high temperature compression performance of conductor materials

Abstract

The invention discloses a clamp for testing ultrahigh-temperature compression performance of a conductor material and a clamping method, and belongs to the technical field of ultrahigh-temperature clamping. A threaded shaft is connected with a testing machine; a shaft base is connected with the threaded shaft through a first nut; a first gasket is arranged between the first nut and the threaded shaft; a third insulating pad is arranged between the first gasket and the threaded shaft; a first insulating pad is arranged inside a radial gap between the shaft base and the threaded shaft; a secondinsulating pad is arranged inside an axial gap between the shaft base and the threaded shaft; a connecting flange is detachably connected with the shaft base; a first water-cooled pressure rod is in threaded connection with a pressure head base; a pressure head body is in smooth contact with a spherical pit in the pressure head base; a tray is in threaded connection with the pressure head base; anupper compressing connecting rod is in threaded connection with an upper compressing pressure head; a cushion block is in threaded connection with the a positioning hood; a second water-cooled pressure rod is in threaded connection with the cushion block; a shaft connecting sleeve is connected with a positioning plate; a lower compressing connecting rod is in threaded connection with the testingmachine; the lower compressing connecting rod is connected with a lower compressing pressure head. The clamp is used for testing the ultrahigh-temperature compression performance of the conductor material.

Description

technical field [0001] The invention relates to an ultra-high temperature compression fixture and a clamping method, belonging to the technical field of ultra-high temperature clamping. Background technique [0002] Thermal protection materials are widely used in the hot-end parts of aircraft. With the development of aircraft technology, the performance requirements of thermal protection materials are getting higher and higher, especially the mechanical properties in ultra-high temperature environments, which are directly related to the safety of thermal protection systems. . Among them, the high-temperature compressibility is an important part of its high-temperature mechanical properties. [0003] At present, some scholars have carried out research in the field of devices and methods for testing the mechanical properties of composite materials under high temperature compression. The authorized announcement number is CN205642999U, and the authorized announcement date is O...

AI Technical Summary

Problems solved by technology

[0004] From the above patents and literature, it can be found that the current high-temperature compression performance equipment and methods of materials mainly focus on the high-temperature compression performance test of metal materials, and the temperature is limited, below 1800 ° C. Most of them use radiant heating, and the heating rate is relatively slow. And poor temperature control sensitivity

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