Hebei Hengtai pipe Hebei Yanshan carbon steel high-pressure three-way manufacturers 13,393,393,927 Xiejing Li, Hebei Hengtai Pipeline Equipment Manufacturing Co., Ltd. specializing in the production of mounds carbon steel high-pressure three-way. Phone manufacturers 0317-6289335. Xiejing Li 13,393,393,927 one kind of Y-type seamless tee manufacturing method comprising the steps of: A. Election blanks: choose a diameter greater than the three-way competent diameter seamless steel pipe for forging stock; B. Forging: seamless steel pipe central upsetting; C. Bending: applying radial pressure seamless steel pipe central formation elbow protruding elbow; D. Shaping: the protruding elbow punching, and then set to the desired size of each port pull. Tee produced by the invention not only has a good metallic internal structure, there is a better channel streamlined and less supplies, the processing is simple. The claims 1. Method of manufacturing a Y-type seamless tee, characterized in that it comprises the following steps: A. Select blank: a seamless steel pipe of diameter greater than the diameter of the tee competent as forging billet, a seamless steel pipe diameter ratio of the diameter of three-way competent 1.1-1.8, a seamless steel pipe length is 2-3 times the diameter of the steel pipe; B. Forging: by thermal processing technology, the two ports will be seamless steel pipe diameter reduction to the requirements of the three-way branch pipe diameter, the seamless steel pipe central upsetting to the original diameter of 1.1-1.3-fold; C. Bending: under heating conditions, with the use of the mold, a radial pressure is applied to the seamless steel central produce axial bending guide competent hole in the metal flows to the mold on a seamless steel pipe at the same time, forming the convex bend of elbow tube; D. Plastic: notching process on the protruding elbow punching, and then use Pullout process each port shaping to the required size.