Portable soft track swing submerged-arc welding device and welding method

Abstract

The invention provides a portable soft track swing submerged-arc welding device and a welding method. The portable soft track swing submerged-arc welding device comprises a trolley body, a power box, a soft track arranged on the lower side of the trolley body, a clamping device arranged on the trolley body and a contact tube, wherein the clamping device comprises a position adjuster arranged on the trolley body and a swing device arranged on the position adjuster; the contact tube is arranged on the swing device, and a welding wire penetrates through the contact tube; a welding loop is formed among the power box, the contact tube, the welding wire and a to-be-welded plate; and a hopper is further arranged on the trolley body, and welding flux is placed in the hopper. The welding device is provided with the soft track, the requirement for the straightness of the to-be-welded plate is greatly lowered, and the flexibility of the welding device is improved. The swing device is arranged, an electric arc can swing along with the swing device, the width of a single welding seam is enlarged, the assembling precision of the to-be-welded plate and the requirement for a groove gap are lowered, and the application range is wide.

Description

technical field [0001] The invention relates to the technical field of steel welding, in particular to a portable soft rail swing submerged arc welding device and a welding method. Background technique [0002] Submerged arc automatic welding is a high-efficiency welding method that uses arc as a heat source. During submerged arc welding, the arc is burned under the cover of a layer of granular meltable flux. The arc is not exposed, and the metal electrode is continuously fed into the welding wire. Its production efficiency is 5-10 times that of electrode arc welding, the main advantages are as follows: [0003] a) It can be welded with high current, and the deposition efficiency is improved, and the plate thickness <14mm can be welded without opening the groove, which saves auxiliary man-hours such as processing the groove, and improves the productivity; [0004] b) The quality of the weld is good, the welding arc is protected by thick flux and slag, avoiding the harmfu...

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Problems solved by technology

[0009] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a portable soft rail rocking submerged arc welding device, which is used to solve the problems in the prior art that submerged arc welding is only suitable for flat position welding, poor flexibility, and limited application range

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