Vacuum thermal shock cycle testing machine

Abstract

The invention belongs to the technical field of test apparatuses, and particularly relates to a vacuum thermal shock testing machine. The machine comprises a support, a controller, an induction powersupply, a temperature measuring device and a vacuum chamber. The support is provided with a vacuum chamber frame body, the vacuum chamber and a cooling device. The vacuum chamber frame body is provided with an air inlet hole and an air suction hole in order to realize thermal shock test in a vacuum environment or a protection gas environment. A crucible is arranged in the vacuum chamber, a test sample is placed in the crucible, the crucible is heated according to an induction heating principle, and a fiber cover sheet is placed on the crucible to achieve heat insulation. The temperature is measured by the temperature measuring device and is displayed in a temperature display, and the controller can automatically start or stop heating for achieving an assigned temperature and set the numberof shocks. Compared with test machines in the prior art, the vacuum thermal shock testing machine in the invention can carry out vacuum high-temperature thermal shock test, can control the vacuum degree and the thermal shock during experiments, and has the advantages of fast temperature rising speed, three-dimensional integral and compact structure, small occupied area, simple structure and wideapplication range.

Description

technical field [0001] The present invention relates to testing mechanical equipment, especially to a kind of test material structure or composite material, which can bear the degree of extreme high temperature continuous environment in an instant, so as to test the chemical reaction caused by thermal expansion and contraction in the shortest time. Thermal shock testing machine for changes or physical damage. Background technique [0002] The thermal shock testing machine is an energy-storage thermal shock test chamber. The main test products are used for testing current electronic components. The thermal shock testing machine can simulate the instantaneous change environment between high temperature and low temperature. In order to judge whether the reliability and stability of the product are qualified; it will provide you with the basis for predicting and improving the quality and reliability of the product, which is used to detect electronics, automobiles, rubber, plasti...

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Problems solved by technology

[0005] At present, electromagnetic heating is mostly used for smelting metal or surface quenching, and no patents using electromagnetic heating as a heating source for thermal shock tests have yet been reported.

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