Steel rail three-wire consumable nozzle electroslag welding device

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...

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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