Multifunctional vacuum furnace

Abstract

Disclosed is a multifunctional vacuum furnace. The multifunctional vacuum furnace is characterized in that the front portion of the body of a heating chamber is provided with a movable front left air door and a movable front right air door, a rear left reversing air door and a rear right reversing air door are symmetrically installed at the air flue end outside the heating chamber, air door air cylinders are installed outside a furnace shell, and air cylinder piston rods penetrate through the furnace shell to be connected with air door pin shafts through sealing structures. The multifunctional vacuum furnace has the advantages that in the heating process, the front left air door and the front right air door are closed, no air through hole is formed, energy loss in the heating process is avoided, energy is saved, and it is ensured that heating is more uniform; and in the cooling process, the opening degree of the front left air door and that of the front right air door are large, meanwhile, the rear left air door and the rear right air door can achieve reversing, in other words, airflow alternately flows in a reversing mode inside the heating chamber, outside the heating chamber, on the left of the heating chamber and on the right of the heating chamber, reversing time can be set, accordingly, workpieces are uniformly cooled, the cooling speed is increased, and the furnace discharge time is shortened. The problem that production efficiency is affected is solved, energy consumption is lowered to minimum, product performance is higher, and production efficiency is improved.

Description

technical field [0001] The invention relates to vacuum equipment in sintering and heat treatment processes, and is an energy-saving and environment-friendly multifunctional vacuum furnace. Background technique [0002] With the shortage of energy and the improvement of environmental protection emission standards, the requirements for energy-saving and environmental protection vacuum equipment are getting higher and higher. At present, domestic vacuum equipment used in sintering, heat treatment, such as annealing, tempering, brazing and other processes has high energy consumption. , low production efficiency, the workpiece needs to be heated for a long time or increase the heating temperature to achieve temperature consistency, and the cooling gas running direction is single. Problems: if the cooling gas enters from the nozzles around the heating chamber and flows out from the front and rear end screens of the shell, or The cooling gas enters from the front and exits from the...

AI Technical Summary

Problems solved by technology

[0002] With the shortage of energy and the improvement of environmental protection emission standards, the requirements for energy-saving and environmental protection vacuum equipment are getting higher and higher. At present, domestic vacuum equipment used in sintering, heat treatment, such as annealing, tempering, brazing and other processes has high energy consumption. , low production efficiency, the workpiece needs to be heated for a long time or increase the heating temperature to achieve temperature consistency, and the cooling gas running direction is single. Problems: if the cooling gas enters from the nozzles around the heating chamber and flows out from the front and rear end screens of the shell, or The cooling gas enters from the front and exits from the back. Such vacuum equipment makes the temperature of the workpiece inconsistent during the cooling process of the product, and the cooling speed is slow, which affects the performance of the product.

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