Vertical type vacuum debinding furnace

Abstract

The invention relates to a vertical type vacuum debinding furnace. The vertical type vacuum debinding furnace is characterized in that a vacuum system is arranged in a furnace shell of the vertical type vacuum furnace and is communicated with a heating chamber through a pipeline; an airtight tank is additionally arranged in the heating chamber; each of the heating chamber and the airtight tank in the heating chamber is provided with an upper opening and a lower opening; a top cover and an upper screen body of the airtight tank are respectively provided with through holes; connecting pipes penetrate into the airtight tank through an air inlet assembly in a lower cover; the other end of the air inlet assembly is respectively connected with a vacuumizing and debinding pipeline and an air cooling pipeline through a three-way pipeline; hearth columns are fixed on the lower screen body and penetrate through the bottom of the airtight tank so as to separate a machined workpiece in the airtight tank from the heating chamber; an air cylinder in the center of an upper cover of the furnace shell drives an air valve to realize opening and closing of the airtight tank and realizes sharing of vacuumizing, air cooling and debinding inside the furnace body together with the three-way pipeline; an air-cooled air return pipe and a vacuum filtering tank structure are additionally arranged, and the debinding pipeline, the air cooling pipeline and the vacuumizing pipeline share one port, so that material feeding and discharging are convenient, the space is saved, and especially the pollution problem that residual grease in the furnace attaches to the wall is solved.

Description

technical field [0001] The invention relates to vacuum equipment, which is suitable for vertical vacuum degreasing furnaces for slender rod-shaped powder metallurgy devices and ceramic products. Background technique [0002] Vacuum degreasing furnace is a degreasing production process equipment suitable for slender rod-shaped powder metallurgy devices and ceramic products. Most of the vacuum degreasing furnaces used in the past have separate pipelines for the evacuation and air cooling pipelines. Disadvantages are: due to the interaction of evacuation and air-cooling pipelines, it is difficult to arrange them reasonably. This structure is not conducive to the discharge of product degreasing. Over the workpiece, the degreasing is uneven and the furnace efficiency is low. Contents of the invention [0003] The purpose of the present invention is to provide a vertical vacuum degreasing furnace, which adopts the structure of opening the cover and adding a closed tank in the ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a vertical vacuum degreasing furnace, which adopts the structure of opening the cover and adding a closed tank in the heating chamber. Solved the pollution problem of residual grease hanging on the wall of the furnace

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