• - Cold Forming Elbow Machine
• - Hot Forming Elbow Machine

• - Pipe End Expanding Machine
• - Full Length Pipe Expander

• - Single-Head Pipe Fittings Beveling Machine
• - Automatic Double-Head Elbow Beveling Machine
• - Automatic Triple-Head Tee Beveling Machine
• - Large Steel Pipes Beveling Machine

The processing method of large-diameter thick-wall seamless steel pipe relates to the field of mechanical processing, specifically to the processing method of large-diameter thick-wall seamless steel pipe, namely, pipe expanding machine, including the following steps:  

Billet smelting and processing, steel ingot (or billet) is the raw material of tube, cold steel ingot, steel ingot surface cracks to be cleaned and polished, pits and pits generated after cleaning to special treatment to prevent folding, steel ingot riser and bottom must be removed;  When the billet is heated before forging, the vertical heating flame can not be directly injected into the billet. In addition, it is appropriate to use gas fuel to heat the billet to below 1290℃, and the heating rate is 50-150 ℃ / h. Forging material and treatment of defects, the billet for descaling treatment, that is, to remove the oxide around the billet, in order to prevent the process of forging oxide into the mold and the formation of surface defects;  The invention has the advantages of simple operation process, reasonable design, avoiding waste products, reducing raw materials and energy consumption, significantly improving labor productivity, and thus bringing good economic benefits.  

The main function of the intermediate frequency heating pipe expander is to change the steel pipe into the inner diameter they need. The steel pipe through the pipe expander will not change the thickness of the steel pipe, but only change the length.  The working principle of intermediate frequency heating pipe expansion machine is electromagnetic induction technology, heating steel pipe, through the mandrel to expand, electromagnetic induction technology heating fast, simple operation, stable and reliable, good stability.  Hydraulic power supply, large power and stable work.  If heating pipe expander can be manual or automatic.  

Intermediate frequency heating tube expanding machine mainly consists of machine base, main cylinder support plate, movable push plate, front bracket, intermediate frequency induction heating coil, tube expanding die mandrel.  

Intermediate frequency heating pipe expanding machine can expand pipe of different inner diameter according to different needs of customers, our company will try our best to meet all needs of customers.  Manufacturing personnel for product installation and commissioning and after-sales treatment.  Welcome new and old customers.