Large-diameter steel pipe on-line bulk heat treatment system
An overall heat treatment and large-diameter technology, applied in heat treatment furnaces, heat treatment equipment, heat treatment process control, etc., can solve the problems of consuming a lot of fuel, quenching medium, site, difficulty, inaccurate heating and quenching temperature control, etc., to achieve heating and quenching The effect of accurate temperature, low production cost and accurate control
Inactive Publication Date: 2013-01-09
BEIJING LONGSHINE OIL TUBULAR TECH
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Problems solved by technology
It is very difficult to implement integral furnace heating on-line heat treatment for large-diameter steel pipes. The heating and quenching temperature control is not accurate, and it needs to consume a lot of fuel, quenching medium, space, etc., which is not compatible with the construction of advanced energy-saving heat treatment equipment.
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[0035] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0036] Such as figure 1 The online overall heat treatment system for large-diameter steel pipes shown includes quenching parts, tempering parts, transformers, power supplies and transmission systems, the transformers include quenching transformers and tempering transformers, the power supply is a power supply control cabinet, and the quenching The part includes a quenching induction coil, the tempered part includes a tempering induction coil;
[0037] The quenching induction coil and the tempering induction coil are respectively connected to the power supply through the...
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Abstract
The invention discloses a large-diameter steel pipe on-line bulk heat treatment system, comprising a quenching part, a tempering part, a transformer, a power source and a transmission system, wherein the quenching part comprises a quenching induction coil, the tempering part comprises a tempering induction coil, the quenching induction coil and the tempering induction coil are both connected with the power source through the transformer, the processed steel pipe is fixed on the transmission system and the axis of the processed steel pipe is parallel to the transmission direction, the quenching induction coil and the tempering induction coil are arranged in order in the transmission direction of the transmission system and are sleeved on the processed steel pipe. According to the invention, the technological problem of large-diameter steel pipe heat treatment is solved, and the control of heating and quenching temperatures of the large-diameter steel pipes is accurate; and the advantages of simple structure, low energy consumption, low production cost, and few lands are achieved.
Description
technical field [0001] The invention relates to the technical field of mechanical manufacturing and metal material heat treatment, in particular to an online integrated heat treatment system for large-diameter steel pipes. Background technique [0002] With the requirements of special working conditions, the service environment of large-diameter steel pipes is becoming more and more harsh. The existing large-diameter steel pipes cannot directly meet the service performance, and they need to be heat treated again to optimize the structure of the matrix material, improve the performance of steel pipes, and further meet the use requirements. . At present, there are only small-diameter steel pipes (Φ≤508mm) for heat treatment of steel pipes at home and abroad, which are generally divided into online heat treatment and offline heat treatment, which are mainly suitable for seamless steel pipes (SML, seamless) and electric resistance welded pipes (ERW, electric resistance Welding) ...
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IPC IPC(8): C21D9/08C21D1/62C21D11/00
Inventor 杨专钊李云龙张鸿博李记科王长安杨红兵赵献伟魏亚秋李安强赵金兰
Owner BEIJING LONGSHINE OIL TUBULAR TECH