Method for extruding and forming stainless steel three-way joint

Abstract

The invention discloses a method for extruding and forming a stainless steel three-way joint, comprising the following steps of: 1), preparing a stainless steel tube billet (1), surface of which is wrapped by a layer of plastic film (9); 2), extruding and forming the stainless steel tube billet (1) so as to obtain a semi-finished product of the three-way joint, wherein a liquid filling medium in a liquid filling system in a tube is emulsion formed by modulating emulsified oil and water; and 3), performing solid solution treatment, surface grinding and groove processing of the semi-finished product of the three-way joint. According to the method for extruding and forming the stainless steel three-way joint disclosed by the invention, the emulsion is ingeniously used as the liquid filling medium; energy-saving and environmental protection requests can be satisfied; the three-way joint extruded and formed by the invention is cleaned easily; the emulsion of the liquid filling medium in the tube can be recycled; stainless steel metal tee joints and the environment cannot be polluted; furthermore, a layer of plastic film is ingeniously wrapped on the stainless steel tube billet in advance; the surface of the formed three-way joint can be effectively prevented from generating defects; and the processing quality of the three-way joint is obviously improved.

Description

technical field [0001] The invention relates to a method for manufacturing a stainless steel tee joint, in particular to an extrusion molding method for a stainless steel tee joint. Background technique [0002] At present, the extrusion molding method of stainless steel tee joints generally uses hydraulic oil or a mixed liquid of pure water and butter as the medium for filling the pipe. Butter is not easy to clean, hydraulic oil consumes energy, and is easy to cause pollution to the environment. At the same time, the liquid-filled medium in these tubes cannot play a good cooling effect, and is easily deteriorated under the influence of heat generated by the deformation of the stainless steel tube blank. [0003] In addition, during the operation process of the stainless steel tee joint extrusion molding method, due to the extrusion friction between the stainless steel pipe blank and the tee die, the surface of the formed tee joint often has defects that cannot be eliminated...

AI Technical Summary

Problems solved by technology

Butter is not easy to clean, hydraulic oil consumes energy, and is easy to cause pollution to the environment. At the same time, because the liquid-filled medium in these tubes cannot play a good cooling effect, it is easy to deteriorate under the influence of heat generated by the deformation of stainless steel tube blanks

[0003] In addition, during the operation process of the stainless steel tee joint extrusion molding method, due to the extrusion friction between the stainless steel pipe blank and the tee die, the surface of the formed tee joint often has defects that cannot be eliminated, which seriously affects the three-way joint. quality of joints

However, since the stainless steel billet needs to be extruded and deformed in the tee die, it is difficult to take effective protective measures, which has become an insurmountable technical problem in the extrusion molding process of the tee joint

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