Continuous Quenching Line for Large Diameter Tube and Bar

Abstract

A continuous quenching line for large-diameter tube and bar materials is provided. Along the moving direction of tube and bar materials, a V-shaped inclined roll transmission continuous heating furnace is connected to an end of an automatic material charging machine; a multifunctional quenching machine is connected to an end of the V-shaped inclined roll transmission continuous heating furnace; the multifunctional quenching machine is connected to an automatic material discharging machine; a water collecting pool is disposed at the lower part of the multifunctional quenching machine; an automatic control system controls the devices from the automatic material charging machine to the automatic material discharging machine; continuous horizontal heat processing of alloy steel, stainless steel, light alloy bar and tube materials with a diameter of 100-800 mm and a length of above 2000 mm (a wall thickness of below 100 mm) can be performed. During the heating and quenching processes, the material both moves forward and performs self-rotation, does not bend or deform, is heated and quenched uniformly, and has a deep quenched layer, and the invention has the functions of performing quenching, solid solution treatment, normalization processing, annealing processing and the like of alloy tool steel tube and bar materials, alloy structure steel tube and bar materials, heat resistant steel tube and bar materials, various stainless steel tube and bar materials, aluminium alloy tube and bar materials, and the like.

Description

technical field [0001] The invention belongs to industrial heat treatment production line equipment, in particular to a continuous quenching line for large-diameter metal pipes and rods for quenching, solid solution, normalizing and annealing continuous heat treatment production line. Background technique [0002] Steel or non-ferrous metals are inseparable from heat treatment in the process of processing and finally forming industrial products. To develop a suitable heat treatment process requires the corresponding heat treatment equipment to achieve. As my country is transforming from a big steel producing country to a strong steel country, the lack of sophisticated heat treatment equipment will greatly restrict the extension of my country's steel industry to the high end, and cannot meet the needs of the machinery industry, oil and gas industry, and national defense industry. [0003] Especially in the field of heat treatment of large-diameter metal pipes and rods used f...

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Problems solved by technology

So far, old equipment such as trolley furnace + quenching pool, pit furnace + quenching pool have been used, and the mechanical properties after heat treatment that meet international standards cannot be achieved.

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