Furnaces of this type are used for heat treatment of steel details in oxidizing or protective atmosphere. They can be used for quenching, normalization and other processes, requiring heating of details up to 1000 о С.
Furnaces of this type are characterized by:
- Options for automatic and manual control of the furnace temperature to a given technological regime. The temperature is regulated by special PID controllers using thermocouples located in the heating chamber;
- Special blockages, powering off the heating elements at the moment of the opening of the door and not allowing their powering on while the door is opened;
Minimal thermal losses during the heating-up cycle and in working mode of the furnace;
- Keeping of high accuracy of the set operating temperature;
- Simple operation and reliable work.
The furnace casing is welded type and is made of sheet and shaped steel sheets.
The thermal insulation is made of chemically neutral and resistant to various gas environments light-weight refractory bricks and concrete, vacuum formed refractory elements, felts and mats.
The heating elements made of new high quality resistance alloys, are arranged appropriately in the working chamber.
Electrical switchboards are designed for power and control of the furnace with operating voltage according to the design and the control of the thermal processes. The electrical switchboards provide appropriate control and protection of the circuits and automation, providing the required security.
The electrical resistance furnaces and respectively the switchboards for powering and management work with three-phase mains voltage (380 V) – to power the load chain and 250 V for control circuits (command and protective circuits related to the safety).
Available furnaces of this type are made in accordance with the technical assignment of the client and in accordance with the requirements of the technology for heat treatment of the products.