Structural Introduction:
　　This vacuum heat treatment furnace mainly consists of a furnace stack, vacuum system, water cooling system, and electrical control system.

Furnace Stack:
　　The furnace body comprises a furnace door, furnace shell, heat insulation screen, and heaters.

　　The furnace door is welded from a double-layer head and flange, adopting a double-walled structure with circulating cooling water inside both the inner and outer heads. The inner head of the furnace door is made of stainless steel plate.

　　The furnace shell is constructed with inner and outer stainless steel cylinders; it is equipped with electrode lead-out devices, gas inlet/outlet interfaces, thermocouple temperature measurement devices, and observation holes. The furnace door and furnace body are connected by hinges, with the door opening laterally. A pressing device is installed on the furnace door.

　　Made of entire metal materials, the heat insulation screen is circular and multi-layered. From the inside out, it is constructed using stainless steel materials.
　　The heaters also adopt a circular structure, installed around the circular heat insulation screen to form an integral unit. The heaters are wound with resistance bands, making them easy to dismantle and maintain. The insulating materials of the heaters are all high-purity alumina ceramics. The material support frame is processed from stainless steel.

Vacuum System:
　　The vacuum system consists of a KT300 diffusion pump + BSV60 direct-connected pump, pneumatic baffle valve, vacuum piping, and pointer pressure gauge.

Water Cooling System:

　　The water cooling system is composed of a main water inlet pipe, main water outlet pipe, multiple branch inlet pipes, multiple branch outlet pipes, valves, and pressure gauges.
　　Cooling water enters areas requiring cooling, such as the furnace shell, furnace cover, and electrodes, through the main inlet pipe and respective branch inlet pipes, then collects into the main outlet pipe via the branch outlet pipes for discharge.
　　An electric contact pressure gauge is installed on the main inlet pipe. When the main inlet pressure falls below the set value, the control system triggers an audible and visual alarm and automatically cuts off the heater power supply. Each branch inlet pipe is equipped with a valve to adjust the cooling water flow in a single circuit. One water chiller is provided.

Control System:
　　LCD touchscreen display with PLC control for data storage and output, which can be copied to a computer via a USB flash drive. Real-time curve display screen enables quicker program settings and more intuitive equipment operation status display. The setting data and operations are presented in a graphical interface for convenient operation.

 Equipment Parameter: