A vacuum box-type atmosphere furnace

Abstract

The invention provides a vacuum box type atmosphere furnace and belongs to the technical field of heating equipment. The vacuum box type atmosphere furnace comprises a vacuum tank and a control box. The front end of the vacuum tank is provided with a vacuum tank door, the vacuum tank is internally provided with a hearth body, the side wall of the hearth body is provided with a vacuumizing opening communicating with the outside, the inner wall of the hearth body is provided with a heating element, and the inner wall of the hearth body is further provided with an air inlet, an air outlet and a thermocouple. A movement mechanism comprises a drive motor, the output end of the drive motor is provided with a threaded rod, the threaded rod is connected with a nut in a threaded manner, the nut is provided with an installation seat, the installation seat is provided with a lifting machine, the lifting machine is provided with a material tray, and the rear end of the vacuum tank is provided with a safety valve. The vacuum box type atmosphere furnace is simple in structure, reasonable in design and convenient to use, a sintered material can be sintered at multiple positions of a hearth, and the accuracy of experiments is improved; and the situation that an explosive rushes out of a furnace body when the pressure in the furnace body is excessively large can be avoided, and the safety of the vacuum box type atmosphere furnace is improved.

Description

technical field [0001] The invention relates to the technical field of heating equipment, in particular to a vacuum box-type atmosphere furnace. Background technique [0002] Vacuum atmosphere furnace, also known as vacuum atmosphere sintering furnace, is a device in which materials are sintered in a furnace chamber with a certain gas in an atmosphere lower than one atmospheric pressure. It is a new type of heat treatment device that combines vacuum technology and heat treatment technology. It is widely used in Production and experiments in the fields of metallurgy, electronics, glass, refractory materials, building materials, etc. Different materials are sintered in an appropriate atmosphere, which is helpful to the sintering process, improves the densification of the product, and obtains a product with good performance. The furnace structure of the existing vacuum atmosphere furnace on the market can only place the sintered material in a fixed position in the furnace, so ...

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Problems solved by technology

The furnace structure of the existing vacuum atmosphere furnace on the market can only place the sintered material in a fixed position in the furnace, so that the sintering of the material may not be sufficient, which will affect the research on various indicators of the material during the sintering process and bring great benefits to the experiment. There are certain difficulties; and the existing vacuum box-type atmosphere furnace does not have a special safety valve. When the pressure in the furnace body is too large, the explosive may rush out of the furnace body and cause injury to the staff.

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