steel bar quenching and tempering furnace features -China manufacturer

Heating purpose of steel Long bar hardening and tempering machine:

Round steel rolled by steel mills has a low hardness of only 12-25HR; The internal stress of the round steel has not been relieved (easily broken and not wear-resistant); The internal structure of round steel is loose and not tight, etc. Due to these defects, the use of round steel as a grinding rod can lead to significant wear, bending, fracture, entanglement, thin ends, low production, failure to meet expected qualification rates, and heavy workload in subsequent magnetic separation processes. Therefore, the steel rod quenched and tempered by grinding the steel rod and heating it in the Bar induction quenching tempering furnace has relieved internal stress, continuous rod bending, good straightness, and no sharp ends. Good wear resistance, which can save users a lot of costs.

Characteristics of Long bar hardening and tempering machine:

Power supply system: quenched 160KW-1000KW/0.5-4KHz, tempered 100KW-600KW/0.5-2.5KHz, hourly output 0.5-3.5 tons, applicable range ø 20- ø 120.

Quenching cooling system: The production line has the function of “intermittent quenching”, with a control error of no more than 3mm.

● Tempering induction furnace: The tempering induction furnace has the same effect as the induction heating furnace. The electric furnace is customized and enters the tempering induction furnace after quenching and cooling to obtain a more perfect metal workpiece structure.

Conveying roller table: The axis of the roller table is at an angle of 18-21 ° with the axis of the workpiece. The workpiece rotates while feeding at a constant speed to ensure more uniform heating. The roller table between the furnace bodies adopts 304. Non magnetic stainless steel and water cooled, other parts of the roller track are made of 45 steel and surface quenched.

Continuous hardening tempering furnace

Roller table grouping: The feeding group, inductor group, and discharge group are independently controlled, which is conducive to continuous heating without creating gaps between workpieces.

● Temperature closed-loop control: Both quenching and tempering are controlled using an American Raytheon infrared thermometer and a closed-loop control system composed of German Siemens S7, providing precise temperature control.

Industrial control computer system: Real time display of the status of working parameters at that time, with functions such as workpiece parameter memory, storage, printing, fault display, alarm, etc.

Energy conversion: Adopting quenching and self tempering method, with a power consumption of 360~400 degrees per ton.