Cold extrusion steel seamless four-way pipe manufacturing process

Abstract

The invention discloses a cold extrusion steel seamless four-way pipe manufacturing process. The cold extrusion steel seamless four-way pipe manufacturing process comprises the following steps that S1, a main pipe and branch pipes are set according to a drawing, and a proper raw material steel pipe is selected to be blanked to be made into a pipe blank; S2, the pipe blank is placed in an outer mold, after an upper mold and a lower mold are assembled, water is added into the molds for pressurization, and under pushing of an oil press, the pipe blank moves along the inner wall of the outer moldto complete the forming process; and S3, after forming, the edge part of a four-way pipe is cut off, and meanwhile, the edge is subjected to machining beveling. According to the cold extrusion steel seamless four-way pipe manufacturing process, manufacturing is simple, operation is easy, cooling water can better absorb heat in pipeline pressing, and therefore temperature balance is guaranteed, pressure balance is achieved for the pipeline, and the phenomenon of uneven pressure of the pipeline is greatly reduced; in addition, in the manufacturing process, if osmotic pressure occurs, whether water seeps from the surface of the pipeline or not is directly observed, and convenience and reliability are achieved; and the four-way pipe manufactured through cold extrusion can better guarantee theservice life of the four-way pipe, and the four-way pipe is suitable for being further used and popularized.

Description

technical field [0001] The invention relates to the technical field of cold extrusion, in particular to a manufacturing process of cold extrusion steel seamless four-way. Background technique [0002] A pipeline is a device used to transport gas, liquid or fluid with solid particles connected by pipes, pipe connectors and valves. Usually, after the fluid is pressurized by blowers, compressors, pumps and boilers, it flows from the high-pressure part of the pipeline to the low-pressure part, and it can also be transported by the pressure or gravity of the fluid itself. Pipes are widely used, mainly used in water supply, drainage, heat supply, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering and various industrial devices; [0003] However, the manufacturing process of the steel seamless four-way on the market is complicated, resulting in tiny gaps in the four-way pipe, and welding is required for the preparation p...

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Problems solved by technology

[0004] The present invention provides a cold-extruded steel seamless four-way manufacturing process, which can effectively solve the complex preparation procedures of the steel seamless four-way manufacturing process currently on the market in the above-mentioned background technology, which causes the four-way pipe to contain tiny gaps, and is difficult for the preparation The process needs to be welded, resulting in uneven thickness of the joint, resulting in short life in the later period, and prone to trachoma.

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