What are the components of a vacuum annealing furnace?

03-27-2025       Author: KJ technology

The vacuum annealing furnace mainly consists of the following components:

Furnace hood and driving mechanism:

Furnace cover shell: It is usually made of high-quality national standard steel frame and welded steel plate to ensure the sealing performance of the furnace.

Furnace hood drive mechanism: used to control the opening and closing of the furnace hood.

Furnace and furnace core:

Furnace: located inside the sealed furnace shell, it is the main space for heating and annealing.

Hearthstone: Composed of a shell (frame), insulation screen, material table, and heating element, it is the core component of a vacuum annealing furnace. The heat shield can be made of materials such as carbon fiber or stainless steel to provide good insulation performance.

Heating system:

High temperature and high radiation electric heating elements: such as resistance wires, graphite heating elements, etc., used to heat metal workpieces in the furnace.

Heating chamber (furnace chamber): It is a full metal radiation screen structure, including insulation layer, heating element, and material platform.

Vacuum system:

Vacuum pump: such as mechanical pump, Roots pump, diffusion pump, etc., used to extract air from the furnace and create a vacuum environment.

Vacuum measuring device: such as a vacuum gauge, used to measure the vacuum level inside the furnace.

Vacuum valve: such as vacuum butterfly valve, used to control the airflow of vacuum system.

Electric control system:

Temperature program control system: such as intelligent PID temperature controller, used for precise control of annealing temperature and time.

Programmable Logic Controller (PLC): Used to achieve automated control and monitoring of equipment.

Industrial LCD touch screen: used to display the operating status and parameter settings of equipment.

Sealing and locking mechanism:

Soft seal locking mechanism: used to ensure the sealing performance between the furnace cover and the furnace body.

Sealing structure of furnace door: such as hydraulic or pneumatic locking sealing structure, used to ensure the sealing between the furnace door and the furnace body.

Water cooling system:

Cooling water pipeline: used to cool components such as the vacuum furnace body, furnace door, and vacuum unit to prevent overheating.

Water cooled electrode: used to transmit current in a vacuum environment while maintaining cooling.

Pneumatic system:

Pneumatic triple components: including a water purifier, pressure gauge, oil mist generator, etc., used to provide clean compressed air.

Electromagnetic directional valve and pipeline: used to control the action of pneumatic actuators such as cylinders, inflation valves, vacuum valves, etc.

Off furnace transport vehicle:

Off furnace material cart: used for transferring workpieces inside and outside the furnace by lifting the furnace bottom and external guide rails.

Other auxiliary components:

Inflation system: used to inject neutral and inert gases such as hydrogen, nitrogen, etc. into the furnace during heating or cooling.

Temperature measuring hole cover: used to detect the temperature uniformity inside the furnace.

Transformer cabinet: used to provide power support for heating systems.