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The function of the three-way machine is introduced

The function of the three-way machine is introduced

The three-way pipe fitting is a common pipe connection with large application amount and wide surface in modern industry. In the process of conveying medium and high pressure liquid or gas, there will be local eddy current, which has a great impact on the performance of the pipe fitting.In the past, there are many serious shortcomings in the production of tee pipe fittings by traditional manufacturing methods, so now we mostly use high-quality seamless steel pipe to form tee pipe.

Seamless tee fittings are produced by internal high pressure process and flanging process.For internal high pressure technology, using DYNAFORM software to simulate first, analyzed the technology parameters (internal pressure, axial and radial feed force back pressure) of loading paths on the influence of three-way tube high pressure forming, through the study found that: (1) adequate feeding is necessary conditions to obtain a certain height of branch pipe, but feeding is too large, will cause serious increase of wall thicknessAdd;(2) The influence of internal pressure and back pressure is opposite. Too large internal pressure or too small back pressure will cause excessive thinning or even rupture of the top of the branch pipe. On the contrary, the height of the branch pipe is too small and the back pressure will hinder the growth of the main pipe.

The matching relation of high pressure process parameters in different sizes of tee pipes is predicted and optimized, and better quality tee pipes can be formed.Existing enterprises to produce large diameter tee pipe through multi-pass flanging process, known as multi-stage flanging reaming process.The pipe fitting series of cold extrusion three-way machine has high production efficiency, and the three-way pipe fittings produced are beautiful in appearance and the quality standard is mostly up to standard.

Based on the analysis of the shortcoming and shortage of the traditional processing technology of large diameter tee pipe, the new forming technology of hot die drawing of tee pipe is introduced in detail.The process is to open an elliptical prefabricated hole in the pipe billet, and then heat the surrounding hole to 1 200℃ with a heating device, and then directly draw a three-way branch pipe on a vertical hydraulic press with a hot drawing die.On the basis of the existing equipment of Aocheng Machinery Equipment Co., Ltd., the relevant experiments show that the new hot die drawing process of large diameter tee pipe can form tee pipe well.

Ao Guang mechanical equipment co., LTD. Production of three-way machine series have cold extrusion three-way machine, hydraulic three-way machine, cold drawing three-way machine and so on, the production of three-way appearance beautiful and delicate, high quality, high production efficiency, low labor cost, is beneficial to improve economic benefits

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