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A fully hydraulic roller press quenching system for ultra-thin and high-strength steel plates

A high-strength steel plate and quenching system technology, applied in the direction of quenching device, furnace, furnace type, etc., can solve the problems of poor plate shape and poor uniformity, and achieve the effect of high flatness, improved performance, and improved quenching uniformity.

Active Publication Date: 2019-03-08
NORTHEASTERN UNIV LIAONING
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Problems solved by technology

[0009] Aiming at the problems of poor uniformity and poor plate shape existing in quenching 2-4 mm ultra-thin high-strength steel plates by existing roll-type quenching machines, the purpose of the present invention is to provide a full-hydraulic roll-type quenching system for ultra-thin high-strength steel plates, which can meet such Fully hydraulic roller press quenching system for high uniformity and high flatness quenching of steel plates

Method used

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  • A fully hydraulic roller press quenching system for ultra-thin and high-strength steel plates
  • A fully hydraulic roller press quenching system for ultra-thin and high-strength steel plates

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Embodiment 1

[0044] like figure 1 , figure 2 As shown in the figure, before the steel plate (1) enters the quenching system, the shunt water collection pipe (22) provides constant pressure cooling water, and controls the slit nozzle ( 18) The flow rate and opening and closing of high-density nozzles (19), each nozzle is opened according to process requirements; at the same time, the hydraulic station (23) provides a constant pressure source, and controls each hydraulic cylinder (25) through the servo control system (24), thereby controlling the upper At the position of the roller table (8), the roller gap is controlled according to the thickness of the steel plate (1); meanwhile, the upper roller table transmission system (10) and the lower roller table transmission system (11) control the upper roller table (8) and the lower roller table according to the process speed (9) Turn.

[0045] After the above conditions are satisfied, when the head of the steel plate (1) reaches the first set...

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Abstract

The invention belongs to the technical field of heat treatment of steel plates, and relates to a full hydraulic rolling type quenching system for an ultrathin high-strength steel plate. The system comprises a quenching rack and supporting system, a roller way and drive system, a water spray system, a hydraulic pressing system and a purging system. The quenching rack and supporting system realizesindependent pressing or lifting of more than two groups of independent quenching racks, the hydraulic pressing system is combined for servo control, a roll gap between an upper roller way and a lowerroller way and a pressing force during steel plate quenching are accurately controlled, and quenching deformation of the steel plate is restrained; and the water spray system is formed by more than two types of jet nozzles so as to form a forced cooling area and a low cooling area, and is combined with the purging system, so that steel plate surface flow zone control, orderly heat exchange controland quenching control according to a process path are realized. The full hydraulic rolling type quenching system for the ultrathin high-strength steel plate provided by the invention solves the problems of plate shape deterioration, nonuniformity in cooling, low final cooling temperature control accuracy and the like during an ultrathin high-strength steel plate quenching process, quenching production with high straightness and high uniformity is realized, and a post-quenching performance and performance uniformity of the ultrathin high-strength steel plate are effectively improved.

Description

technical field [0001] The invention belongs to the technical field of heat treatment of steel plates, and relates to a full hydraulic rolling type quenching system for extremely thin and high-strength steel plates. Background technique [0002] Ultra-thin high-strength steel plates are key raw materials in equipment manufacturing, transportation, petrochemical, military and other fields, and are crucial to the development of large-scale and lightweight equipment. This type of steel plate needs to be heat treated after rolling, and different heating and cooling systems are used to control the structure and shape of the steel plate to obtain better performance. Due to the advantages of high cooling strength, uniform quenching, high control precision, and continuous production, the roller quenching machine has become the main quenching equipment for ultra-thin high-strength steel plates at present. [0003] However, as the thickness of the steel plate is reduced to 2-4 mm, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D9/46C21D1/673C21D1/667
CPCC21D1/667C21D1/673C21D9/46
Inventor 付天亮韩毅王昭东张志福王国栋李勇李家栋
Owner NORTHEASTERN UNIV LIAONING
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