A heat treatment quenching pool

Abstract

The invention discloses a heat treatment quenching tank, and belongs to the technical field of machinery, aiming at solving technical problems of an existing quenching tank which causes poor hardening capacity of workpieces when quenching the workpieces. The quenching tank comprises a tank body; a low vertical pillar fixed on one side of the tank body; a high vertical pillar fixed on the other side of the tank body; an upper slide way and a lower slide way with two ends fixed on the low vertical pillar and the high vertical pillar respectively; a box which is rotatably provided with two rotating shafts on the lower surface, wherein a roller is sleeved on each of the rotating shafts respectively and the two rollers are arranged between the upper slide way and the lower slide way in a rolling manner; a vertical shaft which is rotatably arranged on the box and is sleeved with a driven bevel gear at the upper end, wherein a driving bevel gear meshed with the driven bevel gear is sleeved on one of the rotating shafts, and a hook is arranged at the lower end of the vertical shaft; and a drive device which is arranged on the upper slide way and is connected to the box to drive the box to slide. Through the quenching tank disclosed by the invention, hardening capacity of workpieces is improved.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a quenching pool for heat treatment. Background technique [0002] The quenching of steel is to heat the steel to a temperature above the critical temperature Ac3 or Ac1, keep it warm for a period of time to make it fully or partially austenitized, and then quickly cool it to below Ms at a cooling rate greater than the critical cooling rate for martensitic transformation heat treatment process. [0003] The purpose of quenching is to transform supercooled austenite into martensite or bainite to obtain martensite or bainite structure, and then cooperate with tempering at different temperatures to greatly improve the rigidity, hardness and wear resistance of the steel. properties, fatigue strength and toughness, etc., so as to meet the different requirements of various mechanical parts and tools. Quenching can also be used to meet the special physical and chemical properties of so...

AI Technical Summary

Problems solved by technology

[0005] However, in order to overcome the problem that the workpiece cannot be completely hardened in the above quenching pool, the suction pump needs to run continuously, which consumes a lot of energy and costs a lot; in addition, although the quenching liquid circulation in the quenching pool will make each The water temperature at the place tends to be balanced, but the uniformity of the water temperature still depends on the speed of the circulation flow. Usually, the temperature at the place where the workpiece enters the water is still higher than the water temperature at other places, and the cooling speed of the workpiece is slower, which directly affects the hardenability of the workpiece.

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