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The production of seamless stainless steel pipes is also quite troublesome because the market demand for them is still relatively large. If we want to open up the market, we must first make our own products well. Only with the foundation of high-quality products can customers feel sincere, so that there will repeat customers. Every step in the production of stainless steel seamless pipes must be standardized to reduce the failure rate of products. Let's talk about the production method of stainless steel seamless pipes.
1. If you want to obtain seamless pipes with smaller sizes and better quality, you must use cold rolling, cold drawing, or a combination of the two. Cold rolling is usually carried out on a two-roll mill, and the steel pipe is rolled in an annular pass formed by a circular hole groove with variable cross-section and a stationary tapered plug. Cold drawing is usually carried out on a single-chain or double-chain cold drawing machine of 0.5-100T.
2. The extrusion method is to place the heated tube blank in a closed extrusion cylinder, and the piercing rod and the extrusion rod move together to make the extrusion part extrude from the smaller die hole. This method can produce steel pipes with smaller diameters.
3. Hot-rolled stainless steel seamless pipes are generally produced on automatic pipe rolling units. After checking and removing surface defects, the solid tube blank is cut into the required length, centered on the perforated end face of the tube blank, then sent to the heating furnace for heating, and pierced on the piercing machine. Spin and advance the solid blank inside the process of piercing holes under the influence of the roller as well as the end. Then the solid blank is hollow finally, which is called a gross pipe. Send to the automatic pipe rolling machine to continue rolling. After that, the wall thickness is equalized by the equalizing machine, and the size is sized by the sizing machine to meet the specification requirements. It is a more advanced method to produce hot-rolled seamless steel pipes by using continuous rolling mills.
Dingshang Stainless Steel Co., Ltd. is a stainless steel pipe manufacturer and stainless steel pipe supplier in China. It specializes in wholesale and sales of welded stainless steel pipes/tubes. Welcome to consult.