Method for manufacturing plastic forming thin wall three-way pipe with threaded couplings

A threaded interface and plastic forming technology, which is applied in the direction of metal extrusion dies, etc., can solve the problems of high material cost and manufacturing cost of casting tee pipes, complex and large manufacturing equipment, and high sealing requirements, etc., and achieve the required power for forming. , Reduce material cost and manufacturing cost, small volume effect
CN1669692AInactive Publication Date: 2005-09-21็Ž‹ๆ–‡่พ‰
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
็Ž‹ๆ–‡่พ‰
Publication Date
2005-09-21
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

This invention discloses a method for making plastic-shaping light-wall tee pipe with shoulder interface, belonging to common accessories-making technology field for pipe joint, which bears disadvantages of convenient process, less need of equipments and power, and can one-shot form tee pipe and triple screw thread and lower cost. It is characterized in inserting pliofilm in light-wall pipe blank with bipetalous mold, exerting axial force to pliofirm by two side jack-posts, forcing the blank to generate plastic deformation, and forming as the shape of shaping chamber and triple screw thread. The invention is mainly applied in making light-wall tee steel pipe, especially stainless steel pipe, and also in non-metal material pipes.
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Description

technical field

[0001] The invention relates to the technical field of manufacturing common fittings for pipe connections, in particular to a method for manufacturing a thin-wall tee pipe with a plastically formed threaded joint. Background technique

[0002] Tee pipe is an indispensable and common fitting in the connection of liquid conveying pipes. Most of the existing tee pipe manufacturing methods use casting technology. Due to the limitations of the casting process, the wall of the manufactured tee pipe is often thicker, and the thread of the tee pipe generally needs to be turned out by a lathe, resulting in the casting of the tee pipe. The material cost and manufacturing cost are higher. There is another method for manufacturing tee pipes, which uses liquid as the medium for extrusion molding. Its disadvantages are that it requires high sealing performance, and the power required for molding is relatively large, which makes its manufacturing equipment more complex and...

Claims

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