A sealed box-type multipurpose furnace is a versatile heat treatment equipment, widely used in the heat treatment processing of metal materials. The following is a detailed introduction to it:
A sealed box-type multipurpose furnace production line usually consists of a heating furnace, a cleaning machine, a tempering furnace, a material conveying cart, a material warehouse, a lifting platform, and a control system. Different numbers of unit equipment can be selected according to the requirements of different products and output to form a multi-functional flexible production line.
The main heating methods include electric heating (hot air circulation), gas heating, graphite heating, etc.
The temperature inside the furnace is generally 800-1000℃, and the temperature in the quenching tank is 150-600℃.
- Furnace Chamber Design: The furnace chamber is built with a circular furnace chamber or high-quality imported anti-carburizing bricks, and an all-fiber structure can also be selected. It has good furnace temperature uniformity and excellent atmosphere fluidity.
- Heating Elements: The radiant tubes adopt low-voltage power supply, which features good safety, long service life, and easy replacement.
- Cooling System: It is equipped with a large-capacity oil tank, a specially designed diversion system, and a variable-frequency speed-regulating stirring device. The oil temperature can be automatically controlled. Additionally, cooling methods such as water cooling, protective gas cooling, and salt bath isothermal cooling can be selected.
- Sealing and Atmosphere Control: It adopts a high-efficiency sealing structure, such as a cylinder-pressed sealing door, to prevent atmosphere leakage. The high-precision atmosphere control system can accurately establish the carbon potential inside the furnace. The available atmosphere types include methanol + enriching gas, methanol + N₂ + enriching gas, or Rx atmosphere + enriching gas, etc.
- Control System: It is controlled by a programmable logic controller (PLC), featuring simple operation, convenient maintenance, and high automation. It is equipped with a high-precision temperature controller, a thyristor power regulator, etc., with a temperature control accuracy of ±1℃. It also has a complete fault self-diagnosis and safety interlock control system.
It can be used for various heat treatment processes such as carburizing, carbonitriding, hardening, surface hardening, quenching, normalizing, annealing, and bright processing.
It is widely used in industries and sectors such as electric power, coal, papermaking, petrochemicals, cement, agriculture and animal husbandry, medical research, and teaching. Especially in the fields of machinery manufacturing and auto parts processing, it is widely applied for heat treatment of various types of complex parts.
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