Thermal rotational molding technique and device for inner wall and outer wall of metal pipe

Abstract

The invention relates to the process and equipment for rolling molding for inside and outside metal tubes. It uses the self equipped guide and running vehicles for the previous inspection before the heat molding of the metal tube, electrical heating oven, inner wall heat rolling molding using rotational working bench without natural cooling and then for final production inspection. Rotational working bend needs to send the outer wall molded metal tube to the outer wall heat rolling molding machine, then constant temperature constant plasticizing, natural cooling and final product inspection. It enjoys high production efficiency, good product quality control, with standardized production.

Description

technical field [0001] The invention relates to an anticorrosion process and equipment for metal pipes, in particular to the anticorrosion process and equipment for inner and outer walls of metal pipes by thermal rolling molding. Background technique [0002] Metal pipeline anticorrosion treatment occupies a very important position in pipeline construction, and it is also an important link to ensure the safety of pipelines and improve their service life. In recent years, the anti-corrosion process of thermal rotomolding on the surface of metal pipes has been widely used in many fields such as petroleum, chemical industry, and power plants. However, the currently used thermal rotomolding process and equipment have a single process flow and cannot realize flow operation. The inner and outer wall rotomolding equipment are relatively independent, the equipment is simple, and the quality of rotomolding is difficult to guarantee. During the rotomolding process of the inner and ou...

AI Technical Summary

Problems solved by technology

However, the currently used thermal rotomolding process and equipment have a single process flow and cannot realize flow operation. The inner and outer wall rotomolding equipment are relatively independent, the equipment is simple, and the quality of rotomolding is difficult to guarantee.

During the rotomolding process of the inner and outer walls, the transfer of the workpiece is carried by manual hands, which is labor-intensive, safe production cannot be guaranteed, production efficiency is low, and the surface that has been rotomolded is easily damaged.

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