A welding gasket assembly

Abstract

The invention discloses a welding gasket assembly, which comprises a plurality of gaskets, the plurality of gaskets are connected as a whole through a connecting structure, each of the gaskets includes two sections of the first end arranged in its length direction and a The second end portion, the first end portion and the second end portion are respectively provided with snap fit protrusions and grooves, and the connection structure includes a bottom surface of the gasket for connecting phase The connecting piece is adjacent to the two pads, and the adjacent two pads can rotate relatively around the contact position on the upper surface of the pads. The connection of the pads can be positioned by setting protrusions and grooves on the two adjacent pads, making the connection of the pads more convenient, and the adjacent two pads can rotate relatively around the upper surface contact position of the pads The fit between the gasket and the welded surface can be realized, and at the same time, the setting of the connector can fix the connected gasket and prevent the gasket from falling.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a welding pad assembly. Background technique [0002] During the butt welding process of the plates, in order to ensure the penetration of the joint root and ensure the good shape of the back of the weld, it is necessary to pre-set the backing device along the back of the seam. There are the following three methods in the existing welding technology: 1. Use CO2 ceramic liner, paste the CO2 ceramic liner on the back of the joint for welding, but this method cannot heat the weld, and it is easy to get wet in the rainy season , so that the welding seam produces pores, the welding quality is poor, the ceramic liner and glue will sink during the forming process, the welding seam is poorly formed, and secondary grinding is required; 2. Use vertical air liners, vertical air liners Fixing needs to be clamped with an external card code. The use of the card code needs to be welded and fi...

AI Technical Summary

Problems solved by technology

There are the following three methods in the existing welding technology: 1. Use CO2 ceramic liner, paste the CO2 ceramic liner on the back of the joint for welding, but this method cannot heat the weld, and it is easy to get wet in the rainy season , so that the welding seam produces pores, the welding quality is poor, the ceramic liner and glue will sink during the forming process, the welding seam is poorly formed, and secondary grinding is required; 2. Use vertical air liners, vertical air liners Fixing needs to be clamped with an external card code. The use of the card code needs to be welded and fixed to the surface of the plate. The ceramic liner of the vertical air cushion is easy to absorb moisture in the air, which makes the weld seam produce air holes, and the code foot weld marks after the card code is removed. It needs to be repaired or polished, and the vertical air cushion can only be used once, and the cost of use is relatively high; 3. The water-cooled copper backing plate, drill holes in the middle of the copper plate to connect the booster water pump circulation, to achieve cooling effect, but in the water-cooled type The cooling speed of the weld seam is too fast during the use of the copper backing plate, which is prone to weld cracks, and the length of the water-cooled copper backing plate is limited, so it is not convenient to adjust the length in a targeted manner during use

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