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Steel rail three-wire consumable nozzle electroslag welding device

A welding device and electroslag welding technology, which is applied in the field of profile welding, can solve the problems of heavy workload, difficult to apply rail welding, and large differences in the shape of rail joints, etc., to achieve high welding efficiency, easy post-weld shaping, and avoid slag inclusion and the effect of unfused defects

Active Publication Date: 2019-01-11
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shape of the welded rail joint is quite different from the shape of the rail, and the width of the weld rail waist is significantly larger than the actual width of the rail rail waist, which makes post-weld processing and shaping a huge workload and is difficult to apply in actual rail welding

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  • Steel rail three-wire consumable nozzle electroslag welding device
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Embodiment Construction

[0033] In order to make the object, technical solution and advantages of 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. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0034] see figure 2 , image 3 , Figure 4 and Figure 5 , the rail three-wire melting nozzle electroslag welding welding device provided by the first embodiment of the present invention, the welding device includes a wire feeding mechanism 01, an electroslag welding machine 02, a water-cooled copper mold 03 and a melting nozzle 8, and the electroslag welding The machine 02 is electrically ...

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Abstract

The invention belongs to the related technical field of profile welding, and discloses a steel rail three-wire consumable nozzle electroslag welding device. The welding device comprises a wire feedingmechanism, an electroslag welding machine, a water cooling copper mold and three consumable nozzles; the water cooling copper mold is used for being attached to steel rails to be welded during use, and used for bearing a welding slag pond and a metal molten pool; the electroslag welding machine is electrically connected to a welding wire, conveyed to the consumable nozzles, by the steel rails andthe wire feeding mechanism, the consumable nozzles are used for guiding the welding wire to enter the welding slag pond, the wire feeding mechanism is used for adjusting the feeding-in speed and direction of the welding wire, the three consumable nozzles are parallel, during use, two consumable nozzles are located on rail bottoms on the two sides of the steel rails, and are used for welding the two sides of the bottoms of the steel rails, and the remaining consumable nozzle is located in the gap between two steel rails to be welded, and is used for welding the rail bottom middles, the rail webs and the rail heads. The welding device is higher in welding efficiency, shaping after welding is easy, and the device can be effectively applied to the actual welding of the steel rails, and the adaptation is good.

Description

technical field [0001] The invention belongs to the technical field related to profile welding, and more specifically relates to a three-wire melting nozzle electroslag welding welding device for rails. Background technique [0002] Seamless railway technology can make the train run smoothly, reduce shock and noise, improve the ride comfort, reduce the impact of the train on the rail, and help the train to load and speed up. It is a widely used modern rail laying technology, among which Welding of seamless rails is one of the key technologies for seamless railway laying. Rail welded joints are the weak link of seamless rails, and their quality directly determines the safety and reliability of rail laying. At present, the two most widely used rail welding methods in China are flash welding and aluminothermic welding. [0003] The quality of rail flash welding joints is high, but the equipment is complex. During welding, the rails to be welded need to be lifted and dragged f...

Claims

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Application Information

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IPC IPC(8): B23K25/00
CPCB23K25/00
Inventor 余圣甫王皓江园
Owner HUAZHONG UNIV OF SCI & TECH
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