Special steel long bar induction heating quenching and tempering production line

Independent research and development, production and manufacturing. This quenching and tempering heat treatment production line consists of two parts: quenching and tempering; the quenching heating part is composed of two sets of intermediate frequency power supplies with different powers and multiple sets of heating induction coils. The total power of the quenching part is 750Kw, the total power of the tempering part is 400Kw, and the bus length reaches 38.62. M, the spray part is composed of three groups of spray circles.

Basic process and technical parameters:

Bar diameter range (mm): Φ30-80

Bar length range (mm): 3000-6000

Bar material: 45, 35CrMo, 42CrMo, 4140, 4145, etc.

Quenching temperature: 900-1200℃

Tempering temperature: 500-680℃

Maximum production capacity: 2t/h

Ensure that the core of the material is diathermy to meet the quality requirements of quenching and tempering

The straightness requirements of the bar after quenching and tempering: less than 1mm/m (tentative) on the basis of the straightness of the original bar, and the total length is less than 6m.

The spray ring adopts a fully enclosed type, which prevents the spray liquid from splashing out and is also conducive to the backflow of the spray water. The relative position of the grading spray device is adjustable, and there is a sump for recovering quenching liquid to avoid splashing of spray water. Each level of spray system has an independent water pump and electronic flowmeter to make it controllable.