The vacuum system for multi-purpose furnace heat treatment needs to meet the following three basic requirements

2023-09-01 11:46:04

The vacuum system for Multi-purpose furnace Heat treatment needs to meet the following three basic requirements

The vacuum system of a vacuum Heat treatment furnace needs to meet the following three basic requirements:

It can quickly evacuate the vacuum heat treatment furnace to the required vacuum degree.

2. It should be capable of promptly discharging the gases continuously released by the workpieces being processed and the structural components inside the furnace, as well as the gases that seep into the furnace due to vacuum leakage.

3. The operation, installation, maintenance and repair should be simple and convenient, and the entire system should occupy a small area.

The composition of the vacuum system

The vacuum system of a vacuum heat treatment furnace is generally composed of vacuum pumps, vacuum valves, vacuum measuring instruments, cold traps, pipelines and other components. The following introduces several common vacuum systems.

1. Low vacuum system, suitable for vacuum heat treatment furnaces with vacuum degrees ranging from 2 to 1333Pa. This system is often used in well-pumping vacuum furnaces.

2. The vacuum system with a mechanical booster pump is suitable for vacuum heat treatment furnaces with a vacuum degree within the range of 1.33-3×10 - -1 Pa. This system is widely used in vacuum quenching furnaces.

3. High vacuum systems and high vacuum systems with booster pumps are suitable for vacuum heat treatment furnaces with vacuum degrees ranging from -2 of 1.3×10 to -4Pa of 6.6×10. This system is widely used in vacuum annealing furnaces and vacuum brazing furnaces.

Selection of vacuum system:

According to the technical conditions of the vacuum heat treatment furnace and the required vacuum degree, select the appropriate vacuum pump. Then, according to the type and specification of the vacuum pump, select the corresponding vacuum valves, vacuum pipelines, etc., to form the required vacuum system. Generally, the volume to be evacuated has a certain relationship with the pumping speed of the vacuum pump. Once the volume of the vacuum heat treatment furnace is determined, the corresponding pumping speed can be found out, and then the vacuum pump can be selected based on this.