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Device and method for preheating and heating slow cooling of circumferential weld joint

A circumferential and slow cooling technology, applied in induction heating devices, electric heating devices, auxiliary devices, etc., can solve the problems of low production efficiency and high labor intensity, reduce the space occupied by the site, improve the operation efficiency, and solve the problem of poor controllability. Effect

Active Publication Date: 2021-03-12
CRRC DALIAN CO LTD
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Problems solved by technology

[0004] In order to solve the above technical problems, the embodiment of the present invention proposes a device for preheating and heating and slow cooling of the circumferential weld and the preheating and heating and slow cooling method, which can solve technical problems such as high labor intensity and low production efficiency in the prior art

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  • Device and method for preheating and heating slow cooling of circumferential weld joint

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0023] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are to distinguish two entities with the same name but different parameters or parameters that are not the same, see "first" and "second" It is only for the convenience of expression, and should not be construed as a limitation on the embodiments of the present invention, which will not be described one by one in the subsequent embodiments.

[0024] Such as figure 1 As shown, some embodiments of the present invention disclose a device for preheating and heating and slow cooling of the circumferential weld, including a supporting platform 1, on which a through hole 2 is arranged, and, clo...

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Abstract

The invention discloses a device for preheating and heating slow cooling of a circumferential weld joint and a method for preheating and heating slow cooling. The device comprises a bearing platform,a through hole is formed in the bearing platform, and an electromagnetic induction heating module is arranged at the position close to the through hole. The electromagnetic induction heating module isadopted for heating the weld joint, rapid and uniform preheating before welding and heating slow cooling after welding are achieved, the heating power can be adjusted through a temperature sensor inthe process to meet different heating speed requirements, the vertical structural design is used, and the occupied space of a site can be greatly reduced.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a device for preheating and heating and slow cooling of a circumferential weld and a method for preheating and heating and slow cooling. Background technique [0002] High carbon equivalent materials need to be preheated before welding and heated and cooled slowly after welding. When welding the shaft parts of this material to the circumferential weld, the flame heating method should be used to heat the weld area to a certain temperature range before welding. , this process requires the positioner to cooperate with the rotating preheating process, which requires manual operation and generally takes a long time, which is not only inefficient but also difficult to achieve uniform preheating. The current post-welding heating and slow cooling process generally uses electric heating blanket conduction heating, which has high energy consumption, poor controllability, and poor heating ...

Claims

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Application Information

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IPC IPC(8): B23K37/00H05B6/10
CPCB23K37/00H05B6/101Y02P10/25
Inventor 徐海龙柴晋峰赵希龙刘静李德堃赵永华
Owner CRRC DALIAN CO LTD
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