Thermal medium bulging test machine

Abstract

The invention discloses a thermal medium bulging test machine, which mainly consists of a base, a vertical column, a middle beam, an upper beam, a blank cylinder, a heating furnace, a high pressure medium generation device, a bulging device, a bulging height measuring device, a pressure measuring device, an anti-oxidation device and a cooling device, wherein the vertical column is arranged on the base; the middle beam is arranged on the vertical column; the upper beam is arranged on the vertical column; the blank cylinder is arranged on the upper beam; the heating furnace is arranged between the middle beam and the upper beam; the high pressure medium generation device is arranged between the base and the middle beam; the bulging device is arranged in the heating furnace; the bulging height measuring device is arranged on the upper beam; the pressure measuring device is arranged at the outlet end of the high pressure medium device; the anti-oxidation device is connected with the side wall of the heating furnace through a pipeline; and the cooling device is connected with the outlet end of the high pressure medium device and an ejector rod through the pipeline. The base, the middle beam and the upper beam are integrally connected through bolts; the heating furnace is welded and fixed on the middle beam; a cooling separator is fixed on the blank cylinder through the bolts; the ejector rod is fixed on the cooling separator through the bolts; and a cooling water jacket is fixed on the middle beam through the bolts.

Description

technical field [0001] The invention belongs to the technical field of hydraulic machinery and instrument automation measurement, in particular to a heat medium bulging testing machine. Background technique [0002] In recent years, lightweight, energy saving, and green manufacturing have put forward higher requirements for the aerospace and automotive fields. Lightweight materials such as aluminum alloys, titanium alloys, magnesium alloys, aluminum-lithium alloys, and composite materials have been widely used, but these materials have poor plasticity at room temperature and are difficult to form using traditional techniques. Sheet metal hot medium forming technology combines the advantages of thermoforming and liquid filling forming, and is especially suitable for the forming of the above-mentioned light materials. The feature is that fluid pressure participates in sheet metal forming as an important process parameter, and the sheet metal forming limit is significantly imp...

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Problems solved by technology

The mold is heated by a heating tube without a constant temperature protection device. There is heat exchange between the mold and the environment, and it is difficult to guarantee the test temperature of the plate.

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