Temperature and pressure resistant circumferential self-reinforcement plastic pipe specific for oil treatment

Abstract

The invention relates to the structural composition of a variety of plastic pipe parts, which is characterized in that on the premise of not containing any other additive reinforcing agents, the plastic pipe has temperature and pressure resistance owing to a high-performance self-reinforcement condensed state structure containing a larger number of macromolecules having oriented crystallization along the circumferential direction of the pipe, shish-kebabs, shish-kebab locking and other polymers. Both the strength and the modulus of the pipe of the invention are circumferentially reinforced simultaneously, and weld line defects are eliminated; the strength and the modulus of the pipe in the circumferential direction can exceed or be close to those of the pipe in the axial direction, so that the material performance is optimally configured, and the actual requirements of pipes subjected to internal pressure on the material performance are met. The orientation degree of the reinforced pipe in the circumferential direction is higher than that of common pipe; and the wafer thickness of the reinforced pipe is thicker, the crystallinity of the reinforced pipe is higher, so that the temperature resistance of the pipe is obviously improved compared with that of common pipe, and the pipe is particularly suitable for being used as an pipeline special for oil treatment. The pipe of the invention has the advantages of high production efficiency, less equipment investment, low material cost, low production cost, excellent performance of products, can meet industrialized production conditions, and has good industrialized prospect and economic benefit.

Description

Technical field: [0001] The technology relates to various plastic pipe parts, in particular to a temperature-resistant and pressure-resistant circumferential self-reinforced plastic pipe specially used for oil treatment, and belongs to the field of microstructure of plastic parts. Background technique: [0002] In the process of waste oil recycling and re-refining, the pipelines transporting oil not only need to withstand corrosion, but also often need to withstand certain pressure and temperature. However, plastic pipes are plastic products after all, and their rigidity, strength and temperature resistance are far inferior to cast iron pipes. In order to meet the application in waste oil recycling and re-refining process, it is necessary to improve the compressive strength and temperature resistance of plastic pipes. If the ordinary method is used to improve its strength, the wall thickness of the pipe must be increased, but the increase of the wall thickness will bring abo...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings that the current conventional plastic pipes cannot meet the requirements of thin wall, high rigidity, temperature resistance and pressure resistance, etc., and provide a premise that the same wall thickness and no other reinforcement Circumferentially self-reinforced plastic pipes with both temperature and pressure resistance

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