Pusher-Type Carburizing Furnace
The pusher-type carburizing furnace automatic production line is a highly automated heat treatment system designed for large-volume, continuous manufacturing. It is ideally suited for the carburizing carbonitriding of mechanical components—such as gears, bearings, drill bits—used in a wide range of mechanical products, including automobiles, agricultural vehicles, tractors, bearings, oil drilling rigs. The complete line typically consists of the following core components: a pre-oxidation furnace, a carburizing furnace ( quenching heating furnace), quenching equipment, cleaning equipment, a tempering furnace, an automatic control system. Depending on production volume requirements, the system can be configured as a single-row, double-row, triple-row furnace layout.
Equipment Features:
● Pre-treatment Furnace: Utilizes a centrifugal fan, radiant tube heaters, a hot air circulation heating method to achieve furnace temperature uniformity of ±5°C. Pre-treating parts in this furnace accelerates the carburizing rate improves the uniformity of the carburized layer.
● Unique Bottom-Loading Mechanism: After pre-oxidation, workpieces enter the carburizing chamber via a unique bottom-loading device. This design minimizes the escape of furnace atmosphere, reduces the impact of loading on the furnace's carbon potential, decreases the accumulation of carbon soot inside the furnace.
● Carburizing Furnace Heating: Employs electric radiant tube heating controlled by a Thyristor Power Regulator (SCR) intelligent instrumentation for continuous temperature adjustment, achieving a furnace temperature uniformity of ±7°C. After carburizing, the depth deviation of the treated layer can be controlled within ±0.1 mm. Alternatively, gas burners utilizing fuels such as natural gas can be employed, achieving a thermal efficiency of up to 80%.
● Flexible Carburizing Atmosphere Options: Supports a variety of carburizing atmospheres, including endothermic gas atmospheres, nitrogen-methanol atmospheres, other drip-feed atmospheres.
● Carbon Potential Control System: Comprises imported carbon potential controllers, oxygen probes, control valves to precisely regulate the carbon potential of the furnace atmosphere, achieving a control accuracy of ±0.05%.
● Post-Carburizing Processing: Parts can undergo direct quenching, press quenching, slow cooling immediately after carburizing, offering comprehensive functional versatility.
● Multi-functional Cleaning Machine: Features a single-chamber structure with both immersion spray cleaning capabilities. Process times are adjustable, water temperature liquid levels are automatically controlled. Equipped with an oil-water separator, the unit delivers excellent cleaning results while allowing for the recovery of waste oil.
● Low-Temperature Tempering Furnace: Employs a centralized hot air circulation heating method to achieve a furnace temperature uniformity of ±3°C.
● The furnace hearth tray conveyor rails are constructed silicon carbide, offering excellent high-temperature corrosion resistance, high mechanical strength, a low coefficient of friction.
● The control system for the pusher-type furnace comprises three main components—an industrial PC, a program execution master control system, an operator console—forming a complete distributed control architecture. Users can monitor the operational status of the entire equipment suite at a glance via the operator console the IPC display. The PC interface provides access to comprehensive information, including a system overview, process parameters, tray tracking, offline simulation, password management, system help, exit functions.
● Compared to pit-type furnaces, this continuous automatic carburizing line achieves energy savings of 40–50%, while simultaneously reducing labor requirements auxiliary material consumption, as well as mitigating environmental pollution.
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