A cold-rolled steel pipe and its spraying equipment for easy initial positioning and assembly

Abstract

This application relates to a cold-rolled steel pipe and its spraying equipment that are convenient for initial positioning and assembly. It relates to the technical field of cold-rolled steel pipe production. The steel pipe includes a pipe body. The inner wall is equipped with a second mating component; the first mating component includes a mounting part, an insertion part and a supporting part, and the mounting part is inserted into the end of the pipe body away from the second mating part and connected to the inner wall of the pipe; the mounting part is connected to the insertion part, The insertion part protrudes from the tube body and can be connected with the second matching component of another tube body; the support part is installed in the insertion part and is arranged near the connection between the insertion part and the installation part. The application enables two cold-rolled steel pipes to be initially positioned and connected, which is convenient for reducing the relative displacement of the two cold-rolled steel pipes when assembling additional connecting pieces, thereby facilitating the reduction of the difficulty of assembling the two cold-rolled steel pipes, and further making the cold-rolled steel pipes A more convenient effect when assembling additional connectors.

Description

Technical field [0001] The present application relates to the field of cold-rolled steel pipe production, in particular, involving a cold-rolled steel pipe for ease of initial positioning and its spraying equipment. Background technique [0002] At present, the steel pipe generally refers to a hollow steel having a length greater than the diameter or circumference, and the common steel pipe cross-section is circular, square, rectangular or a shaped steel pipe. The angle of steel pipe from the production process can be divided into seamless steel pipes and welded steel pipes, wherein the seamless steel pipe is separated from hot rolling and cold rolling. The steel pipe is made of a single metal material, or a rust-rust layer can also be coated on the surface of the steel pipe or a layer of other metal materials to slow down the rust of the steel pipe. [0003] The cold-rolled steel pipe in the related art is generally the first spray process, and the cold rolled steel pipe is spra...

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