Precision spray-formed metal pipe and its manufacturing method and equipment

Abstract

The invention discloses manufacturing equipment for precision spray-formed metal pipes, comprising: a spray chamber; a vertical rotary lifting mechanism, which is provided with a deposition tray, and the vertical rotary lifting mechanism can drive the deposition tray to rotate and lift; standing on the deposition tray, A core tube that moves with the deposition tray; a heating device; an inert gas atomization injection device, which includes an atomization nozzle and a metal liquid guide tube arranged on the upper part of the injection chamber. The invention also discloses a method for preparing a metal pipe by using the device and the prepared pipe material. The invention changes the traditional horizontal precision spray forming process into vertical precision spray forming, which overcomes the problems of easy deformation and excessive waste when precision spray forming metal pipes, and is more convenient, energy-saving and cost-effective compared with the solid hollowing out process. Improved performance. The invention is suitable for preparing pipe fittings or tube blanks by precise spray forming.

Description

technical field [0001] The invention relates to the field of spray forming, especially the field of precision spray formed metal parts. Background technique [0002] Spray forming is a new process of metal preparation and forming that has gradually developed and matured in the past 40 years. Its basic principles are as follows: figure 1 shown. refer to figure 1 , the spray chamber 11 is filled with high-pressure inert gas, the spray chamber 11 is provided with a vertical rotary lifting mechanism, the upper end of the rotary lifting mechanism is provided with a horizontal deposition tray 8, and a metal atomization device is provided on the upper part of the spray chamber 11, the The metal atomizing device includes a tundish 3 for receiving molten metal poured from the smelting furnace 1 , and an atomizing nozzle 4 communicating with the tundish 3 and having an outlet facing the horizontal deposition tray 8 . The molten metal is sprayed from the atomizing nozzle 4 and atomi...

AI Technical Summary

Problems solved by technology

[0007] 1. If image 3 As shown, the deposition efficiency of the metal jet 5 deviating from the center of the metal tube 7 is low, and the smaller angle with the deposition surface makes the jet more sputtering

Especially when the diameter of the metal tube is small, a considerable part of the jet cannot touch the deposition surface at all, resulting in the waste of a lot of metal jet

[0008] 2. When making slender tubes, the horizontal red hot tube billet is easy to bend and the operation fails

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