Stock bin weld joint auxiliary welding device and welding method thereof

Abstract

The invention discloses a stock bin weld joint auxiliary welding device. The stock bin weld joint auxiliary welding device comprises an inner layer contour plate and an outer layer contour plate. Theinner layer contour plate is sleeved with the outer layer contour plate. The outer side face of the inner layer contour plate is provided with sliding grooves extending along a plate body. The inner side face of the outer layer contour plate is provided with sliding rods corresponding to the sliding grooves. The sliding rods are clamped in the sliding grooves so that the inner layer contour platecan slide relative to the outer layer contour plate. According to a welding method of the stock bin weld joint auxiliary welding device, the matched contour plates are arranged on the inner side of aweld joint, and the inner side of the weld joint is completely wrapped through the contour plates; inert gas is introduced into the contour plates continuously to remove oxygen on the inner side of the weld joint, so that the inner side of the weld joint is completely wrapped completely by the inert gas. In this way, when welding equipment conducts welding on the outer side of the weld joint, no oxygen exists on the inner side of the weld joint, and an oxidation reaction is avoided, so that the inner side of the weld joint is smooth, and the requirements for the weld joint of a stock bin are met.

Description

technical field [0001] The invention relates to a welding seam welding tool, in particular to a silo welding seam welding auxiliary device and a welding method thereof. Background technique [0002] When combining the welding of the silo, when the silo plate is butt welded, the welding of the weld is usually welded on both sides separately; after the two sides are welded, the two sides of the weld will be very uneven; therefore, the existing welding In the technology, the welding seam is mostly welded on one side; when welding, only the outer side of the weld seam is welded. After welding only on the outer side of the weld seam, the inner side of the weld seam will be relatively flat, but the welded Sometimes, the inside of the weld seam will still oxidize with oxygen under high temperature conditions, resulting in unevenness of the inside of the weld seam, which cannot meet the requirements for the smoothness of the weld seam inside the silo. Contents of the invention ...

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Problems solved by technology

[0002] When combining the welding of the silo, when the silo plate is butt welded, the welding of the weld is usually welded on both sides separately; after the two sides are welded, the two sides of the weld will be very uneven; therefore, the existing welding In the technology, the welding seam is mostly welded on one side; when welding, only the outer side of the weld seam is welded. After welding only on the outer side of the weld seam, the inner side of the weld seam will be relatively flat, but the welded At this time, the inside of the weld will still oxidize with oxygen at high temperature, resulting in the unevenness of the inside of the weld, which cannot meet the requirements for the smoothness of the weld inside the silo.

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