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Welded pipe in the wall
Welded pipe in the wall

Welded pipe in the wall

The wall welded pipe is also known as welded pipe, is made of steel plate or strip steel after crimping forming...
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In the wall welded pipe also known as welded pipe, is made of steel plate or strip steel after crimping forming welded steel pipe, the general length of 6 meters. Medium wall welded pipe production process is simple, high production efficiency, variety of specifications, less investment in equipment, but the general strength is lower than seamless steel pipe.

Welding process flow

Raw material uncoiling -- leveling -- end shearing and welding -- looping -- forming -- welding -- internal and external bead removal -- precorrection -- induction heat treatment -- sizing and straightening -- eddy current testing -- cutting -- water pressure inspection -- pickling -- inspection (strictly controlled) -- packaging -- shipment.

Characteristics of middle wall welded pipe

Middle wall welded pipe production process is simple, high production efficiency, low cost, rapid development. The strength of spiral welded pipe is generally higher than that of straight welded pipe. The welded pipe with larger diameter can be produced with narrow blank, and the welded pipe with different diameter can also be produced with the same width of blank. However, compared with the same length of straight seam pipe, the weld length increases by 30~100%, and the production speed is lower.

Application range of middle wall welded pipe

Medium wall welded pipe products are widely used in tap water engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation and urban construction.

For liquid transport: water supply and drainage. Gas transportation: gas, steam, liquefied petroleum gas.

For structure: for pile driving pipe, as a bridge; Wharf, road, building structure pipe, etc.