Isolated-type vacuum non-oxidation tempering device

Abstract

The invention discloses an isolated-type vacuum non-oxidation tempering device. The isolated-type vacuum non-oxidation tempering device comprises a front vacuum chamber, a heating area and a rear vacuum chamber, wherein the heating area adopts a transverse hollow structure; a self-locking closed heating box body is arranged in the heating area; a front transition section is arranged at the front end of the heating area; the two ends of the front transition section are respectively connected with the front vacuum chamber and the heating area; a rear transition section is arranged at the rear end of the heating area. As the front vacuum chamber and the rear vacuum chamber are respectively arranged on the two sides of the heating area, the interior of the whole tempering device is in a sealed state, oxidation of metal casting surfaces is reduced in the tempering process, and accordingly, the processed metal castings are excellent in mechanical property; as the self-locking closed heating box body is arranged in the heating area, when the metal castings are fed in and out of the self-locking closed heating box body, only one door of the box body can be opened, and accordingly, cross ventilation, which reduces the temperature in the box body and influences the processing effect, in the box body is prevented.

Description

technical field [0001] The invention relates to the field of valve production equipment, in particular to an isolated vacuum non-oxidation tempering device. Background technique [0002] The tempering furnace is used for tempering general metal parts in the air and quenching, annealing and aging heat treatment for aluminum alloy die castings, pistons, aluminum plates and other light alloy parts; the metal castings required for valve manufacturing must be tempered. improve its mechanical properties. [0003] The heat treatment and quenching treatment of parts in today's machinery industry have mostly adopted protective atmosphere without oxidation treatment, but the tempering after quenching still adopts air without protection treatment; the surface of the workpiece is seriously oxidized, and with the continuous improvement of mechanical parts requirements, especially high The tempering treatment of precision mechanical parts and metal parts must be carried out in a non-oxid...

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Problems solved by technology

[0003] The heat treatment and quenching treatment of parts in today's machinery industry have mostly adopted protective atmosphere without oxidation treatment, but the tempering after quenching still adopts air without protection treatment; the surface of the workpiece is seriously oxidized, and with the continuous improvement of mechanical parts requirements, especially high The tempering treatment of precision mechanical parts and metal parts must be carried out in an oxidation-free state to achieve a smooth surface without oxidation and improve mechanical properties

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