Production process of buried gas PE pipe

Abstract

The invention discloses a production process of a buried gas PE pipe, and the production process comprises the following steps: (1) compounding, to be more specific, selecting PE resin powder, a claynano composite material, a flame retardant, polyethylene wax, an antistatic agent, a low temperature resistant plasticizer and a coupling agent; (2) drying mixing, to be more specific, placing the selected raw materials in a dry mixer for drying and stirring to obtain a dry mixture; (3) extruding, to be more specific, and feeding the dry mixture into an extruder for extrusion; (4) cooling and setting, using a vacuum forming cooler to form and cool the extruded PE pipe under vacuum to obtain a PE base pipe; (5) preparing a wear-resistant layer; and (6) hot pressing, uniformly hot pressing the obtained wear-resistant layer and coating the outer surface of the prepared PE base pipe with the wear-resistant layer to obtain the finished PE pipe. The production process specification has low production cost and less waste, can ensure the quality of the produced product, can improve the impact resistance and wear resistance of the produced product, and increases the service life of the product.

Description

technical field [0001] The invention belongs to the technical field of plastic pipe production, and in particular relates to a production process of PE pipes for buried gas. Background technique [0002] Due to its unique advantages, PE pipes are widely used in building water supply, building drainage, buried drainage pipes, building heating, gas transmission and distribution, gas transmission pipes, electrical and telecommunications protection casings, industrial pipes, agricultural pipes, etc. Mainly used in urban water supply, urban gas supply and farmland irrigation. However, PE pipes are poor in pressure resistance, wear resistance and impact resistance. When used as buried gas supply pipelines, they are often impacted or worn during construction, resulting in short service life. The production process of pipes is various, and the quality of the produced PPR pipes is also uneven, which seriously affects the later use. Contents of the invention [0003] The technical...

AI Technical Summary

Problems solved by technology

However, PE pipes are poor in pressure resistance, wear resistance and impact resistance. When used as buried gas supply pipelines, they are often impacted or worn during construction, resulting in short service life. The production process of the pipe is various, and the quality of the produced PPR pipe is also uneven, which seriously affects the later use