Treatment method suitable for carrying and storing plastic-lined steel pipes

Abstract

The invention provides a treatment method suitable for carrying and storing plastic-lined steel pipes. Inwards concave pipe caps are inserted at two ends of the plastic-lined steel pipes, the pipe cap is bowl-shaped and comprises an inwards concave bowl body and a thin ring outer edge positioned at the part of a bowl opening, the external surface of the bowl body is approximately in fit with the pipe diameter of the plastic-lined steel pipe, and the thin ring outer edge covers the end face of the plastic-lined steel pipe. The treatment method effectively prevents ports of the plastic-lined steel pipes from being layered, overcomes the potential safety hazard in a process of carrying products and inconvenience in the operation, and improves the quality of the product and work efficiency.

Description

technical field [0001] The invention belongs to the field of auxiliary processing of plastic-lined steel pipes, and in particular relates to a processing method suitable for handling and storing plastic-lined steel pipes. Background technique [0002] During the production process of the plastic-lined steel-plastic pipe, the end delamination occurs due to the different shrinkage rates of the two materials and the creep of the plastic. All delamination starts from the end, which affects product quality. The caps used in the existing plastic-lined steel pipes belong to the outsourcing structure. figure 1 As shown, when it is installed, it is set on the outer surface of the pipe end, and its protection has no meaning for the delamination of the plastic-lined layer; and because the end of the plastic-lined steel pipe is blocked, it is difficult to drag and pack the pipe, especially Larger-sized composite pipes, because each of the large-sized pipes is very heavy, such as a DN65...

AI Technical Summary

Problems solved by technology

[0002] During the production process of plastic-lined steel-plastic pipes, port delamination occurs due to the different shrinkage rates of the two materials and plastic creep. All delamination starts from the port, which affects product quality.

The caps used in the existing plastic-lined steel pipes belong to the outsourcing structure. figure 1 As shown, when it is installed, it is set on the outer surface of the pipe end, and its protection has no meaning for the delamination of the plastic-lined layer; and because the end of the plastic-lined steel pipe is blocked, it is difficult to drag and pack the pipe, especially Larger-sized composite pipes, because each of the large-sized pipes is very heavy, such as a DN65 plastic-lined steel pipe weighs 41.77kg, and when two people carry it, one hand will drop the pipe when the other is easy to drop. Occupational accident

In addition, when installing the existing pipe cap, because the product belongs to the outer cover, the surface of the pipe cap needs to be aligned with the pipe port to be easy to install, which affects the work efficiency

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