What is a vacuum heat treatment furnace?

Vacuum heat treatment furnace is an advanced heat treatment equipment that combines vacuum technology with heat treatment technology to achieve heat treatment process in vacuum state. The following is a detailed explanation about vacuum heat treatment furnaces:

working principle:
The vacuum heat treatment furnace uses a vacuum system (composed of vacuum pumps, vacuum measuring devices, vacuum valves, and other components) to discharge some of the substances inside the furnace chamber, so that the pressure inside the furnace chamber is less than one standard atmospheric pressure, achieving a vacuum state.
In a state close to vacuum, the workpiece is heated by electric heating elements (such as resistance wires, electric heating rods, etc.).

Main structure:
The vacuum heat treatment furnace mainly consists of a heating zone, a temperature control zone, and a vacuum chamber.
The heating zone is the core part, which heats the workpiece through heating elements such as resistance wires.
The temperature control zone is composed of temperature measuring instruments, controllers, etc., used to accurately control the heating temperature of the workpiece.
A vacuum chamber is a sealed container used to generate and maintain a vacuum state, ensuring that the workpiece does not come into contact with air during the heating process and preventing oxidation reactions from occurring.

Technical features:
High thermal efficiency, capable of achieving rapid heating and cooling.
It can achieve no oxidation, no decarburization, no carburization, remove phosphorus chips on the surface of the workpiece, and has functions such as degreasing and degassing, making the surface of the workpiece bright and purified.
The accuracy of furnace temperature measurement and monitoring has significantly improved, and the indicated value of the thermocouple can reach ± 1.5 ° C with the furnace temperature.
The degree of mechatronics integration is high, and workpiece movement, air pressure regulation, power regulation, etc. can be pre programmed and set, and quenching and tempering can be carried out step by step.
Suitable for vacuum heat treatment of various materials, such as cold and hot work mold steel, high-speed steel, elastic alloys, high-temperature alloys, stainless steel, titanium alloys, magnetic materials, etc.

Classification:
According to their usage, they can be divided into vacuum quenching furnaces, vacuum tempering furnaces, vacuum annealing furnaces, etc.

Technical indicators:
The technical indicators of vacuum heat treatment furnace include effective working area size, large furnace capacity, high temperature, commonly used working temperature, vacuum degree, furnace temperature uniformity, system accuracy, etc.

Maintenance:
The vacuum heat treatment furnace needs regular maintenance, including cleaning the inside and outside of the vacuum chamber, checking the connection of various components, adjusting controller parameters, etc., to ensure the normal operation and service life of the equipment.

Overall, vacuum heat treatment furnaces are efficient, precise, and environmentally friendly heat treatment equipment widely used in the vacuum heat treatment process of metal materials and workpieces.