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Stainless Steel Pipes is how butt? Before cutting and welding stainless steel Pipes need to pay attention to what matters? In general, stainless steel Pipes and prefabricated before use, should carry out the necessary quality checks. Including stainless steel Pipes of diameter, wall thickness, surface quality and the pipe material and internal quality. Pipes of stainless steel pipes and tubes have special requirements, should have strict custody system; such as batch number storage, to avoid confusion. According to the provisions material analysis and mechanical properties checking test work. But for general low pressure chemical pipelines pipes, only for checking dimensions and surface quality on it.

However, when performing cutting and welding stainless steel Pipes, usually pay attention to the following points:

1, tube cutting drawings should be.

Requirements shall be connected to the pipe end processing structure decisions. Such as welding connection, the nozzle should be based on the thickness of the wall of the processing groove; if the connection is non-standard butt flange, tube length shall be deducted from the length of the butt end of the non-standard flange and port chamfering. For non-standard flat welding flange, the stainless steel shaped tubes nozzle is flat, its length should be considered non-standard flange is welded seam height dimension (can be isolated in a non-standard flange standards). When connecting non-standard threaded flange or threaded, the tube should be cut a good thread.

2, one end of the cutting cold working methods should be used as much as possible.

Stainless Steel Pipes pair Jiaochang pipe diameter is inevitably use gas cutting method for cutting, but still use cutting machining method and machining pipe end beveling shape. Usually the tube can be cut in the sawing and machine tools, hand saws can also be carried out and pipe cutter. Typically the pipe diameter of 50 millimeters and are hand pipe cutter to cut.

Stainless steel shaped tubes cutter is designed for cutting small diameter thin-walled steel pipes, and the use of the pipe vise grip on the tube, stainless steel shaped tubes ordered by cutting blade when cutting tubes and roller composition, the blade of the cutter quasi-crossed stainless steel shaped tubes, and then tighten the handle screw, pull the switch pipe cutter, then tighten the handle screw, or do bite to slowly cut the pipe. In the cutter blade cutting process can be lubricated. In this way cut pipe, nozzle smooth, but the inner diameter of the pipe end slightly narrowed: cutting a tube efficiency is lower.