material

Aluminum shell/steel shell/copper

type

Vacuum quenching furnace, vacuum brazing furnace, vacuum annealing furnace, vacuum magnetizing furnace, vacuum annealing furnace, vacuum sintering furnace, vacuum diffusion welding furnace, vacuum carburizing furnace, etc.
       Vacuum furnaces are divided into vacuum resistance furnace, vacuum induction furnace, vacuum arc furnace, vacuum consumption arc furnace, electron beam furnace (also known as electron bombardment furnace) and plasma furnace.

parts

Vacuum furnace is generally composed of main engine, furnace, electric heating device, sealed furnace shell, vacuum system, power supply system, temperature control system and external conveyor. The sealing furnace shell is welded with carbon steel or stainless steel, and the joint surface of movable parts is sealed with vacuum sealing material. To prevent the shell from deforming and the sealing material from deteriorating when heated, the shell is usually cooled by water or gas. The furnace is housed in a sealed enclosure. Depending on the purpose of the furnace, there are different types of heating elements in the furnace, such as resistors, induction coils, electrodes, and electron guns. The vacuum furnaces for smelting metal contain crucibles and some are equipped with automatic pouring devices and mechanical hands for loading and unloading materials. The vacuum system mainly consists of vacuum pump, vacuum valve and vacuum gauge.

advantages

1) completely eliminate the oxidation and decarbonization of the workpiece surface during the heating process, and obtain a clean surface without deterioration layer. This is essential to improve the cutting performance of a tool that only grinds one side during grinding (e.g., twist drill grinding, which exposes the decarburized layer on the groove surface directly to the edge).
       2) it does not pollute the environment and does not need to deal with three kinds of wastes.
       3) the accuracy of furnace temperature measurement and monitoring is greatly improved. Thermocouple indication and furnace temperature up to 1.5c. However, the temperature difference between different parts of a large number of workpiece in the furnace is large. If forced circulation of noble gases is adopted, the temperature difference can still be controlled within the range of (+5) C
       . 4) high degree of mechatronics. On the basis of improving the accuracy of temperature measurement and control, the workpiece movement, air pressure regulation and power regulation can be programmed in advance, and quenching and tempering can be carried out step by step.
       5) energy consumption is significantly lower than that of salt bath furnace. The modern advanced vacuum furnace heating chamber adopts high quality insulation materials to make the insulation wall and barrier layer, which can highly concentrate the electric heating energy in the heating chamber, with remarkable energy-saving effect.

function

Vacuum quenching (tempering, annealing) is a method of obtaining desired properties by heating and cooling materials or parts in a vacuum according to technical rules.
       Vacuum brazing is a welding process in which a group of welded parts is heated under vacuum to temperatures above but below the melting point temperature of the filler metal. The weld is formed by wetting and flowing. From filler metal to base metal (brazing temperature varies with material).
       Vacuum sintering is the process of sintering metal powder products into components by heating adjacent metal powder particles in a vacuum through adhesion and diffusion.
       Vacuum magnetization is mainly applied to magnetization of metallic materials.

application

1. High-pressure and high-flow gas quenching vacuum furnace,
       Mainly used for vacuum heat treatment of cold, hot working die steel, high speed steel, elastic alloy, high temperature alloy, stainless steel, titanium alloy, magnetic material, etc.

2. Double-chamber high-pressure gas quenching vacuum furnace
       , mainly used for cold and hot die steel, high speed steel, elastic alloy, high temperature alloy, stainless steel, titanium alloy, magnetic materials high-pressure gas quenching, vacuum sintering and vacuum brazing. And other materials.

3. Double-chamber oil air-cooled vacuum furnace
       It is mainly used for bright quenching of tool steel, die steel, bearing steel, spring steel and other materials.

4. Vacuum aluminum brazing furnace
       Mainly used in automotive radiator, air conditioning evaporator, condenser, intercooler, radar mesh antenna, waveguide and various plate or tube heat exchanger vacuum welding.

5. Vacuum high temperature brazing furnace
     Mainly suitable for vacuum brazing of stainless steel, high temperature alloy, hard alloy, nonferrous metal and other materials.