High-temperature electric resistance furnace used for fretting wear tests

Abstract

The invention provides a high-temperature electric resistance furnace used for fretting wear tests. Heating devices are fixedly arranged in a furnace body. An upper sample and a lower sample which are oppositely installed up and down are arranged in the furnace body. The upper sample is installed on a high-temperature connection rod through an upper sample base. The lower sample is fixedly installed on a high-temperature connection rod through a lower sample base. The high-temperature connection rods are installed on the side wall of the furnace body through corrugated pipe assemblies. A movable sample is installed on a movable sample base between the upper sample and the lower sample. The movable sample base is connected with an external reciprocating driving device through a driving rod. According to the high-temperature electric resistance furnace, a heating cavity with small volume is arranged in the furnace body and provided with a heat-insulating layer, so that the heating speed of the high-temperature electric resistance furnace is increased; a water cooling layer is additionally arranged on the furnace body, and the high-temperature electric resistance furnace is cooled by starting a cooling water pump after the temperature in the furnace reaches the limit, so that the problems of slow heating and uncontrollable temperature of the high-temperature electric resistance furnace are solved.

Description

technical field [0001] The invention relates to the technical field of wear tests, in particular to a high-temperature electric furnace used for fretting wear tests. Background technique [0002] Our company is mainly to simulate the wear characteristics of the blade shroud meshing surface of the aircraft engine blade during use, that is, to test the wear amount of the sample after the sample reciprocates and cyclically rubs for a certain number of times at a certain test frequency. At present, there are many types of friction testing machines in the field of tribology at home and abroad, including rotary-disk friction testing machines for simulating tunneling and drilling, and excitation-type friction testing machines for simulating fatigue and wear. The high-temperature electric furnace of these testing machines heats slowly, and the temperature in the furnace is uncontrollable after heating, which affects the test results, and the wear form is either a rotating periodic f...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above technical problems, the present invention provides a high-temperature electric furnace for fretting wear test. The high-temperature electric furnace for fretting wear test is provided with a small-volume heating chamber in the furnace body, and an additional The water-cooled layer solves the problems of slow heating and uncontrollable temperature of high-temperature electric furnace

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