External heating vacuum heat treatment tank

Abstract

The invention discloses an externally heating type vacuum heat treatment tank in the field of heat treatment equipment. The tank comprises a tank body, wherein the tank body has a closed bottom and an open top, an exhaust assembly connected with the tank body in a sealed manner is arranged at an opening in the top of the tank body, the exhaust assembly is provided with an exhaust tube communicated with the inside of the tank body, and a heat-resistant chuck arranged at a resistance furnace door opening is arranged on the periphery of the middle of the tank body. The tank has the benefits as follows: the tank is simple in structure, easy to manufacture and convenient to operate and maintain, an electrical heating element performs heating outside the vacuum tank, the vacuum discharge phenomenon cannot occur, other electrical problems such as short circuits, carbon deposition and the like are solved, besides, workpieces are sealed in the tank and cannot have chemical reactions with the electrical heating element, a furnace lining and the like, the production is safe and reliable, the vacuum tank is small in volume, few accessories are arranged in the tank, vacuum sealing is easy, the sucking quantity is small, and the required vacuum degree is reached easily.

Description

technical field [0001] The invention relates to the field of heat treatment equipment, in particular to an external heating vacuum heat treatment tank. Background technique [0002] Modern vacuum heat treatment technology is an advanced technology for material modification, that is, normalizing, annealing, quenching, tempering and other heat treatments are carried out on the workpiece to be processed in a vacuum environment. , energy saving, clean, pollution-free, pollution-free, high degree of automation, etc. After vacuum heat treatment, the surface quality of the material is good, the deformation is small, the comprehensive performance is excellent, the service life is long, and the precision is high. Therefore, vacuum heat treatment technology has become a hot spot in international development. However, the structure of the traditional internal heating vacuum heat processor is relatively complicated, and there are too many accessories in the tank, which is easy to cause ...

AI Technical Summary

Problems solved by technology

However, the structure of the traditional internal heating vacuum heat processor is relatively complicated, and there are too many accessories in the tank, which is easy to cause vacuum discharge phenomenon. At the same time, there are many internal electrical circuits, and there are certain safety hazards in the use process, and the cost of vacuum heat treatment for small parts is high. Conducive to the popularization and application of vacuum heat treatment technology

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