Hot winding solid corrugated pipe, sectional material thereof and manufacturing method thereof

Abstract

The invention relates to a hot winding solid corrugated pipe, and a sectional material and manufacturing method thereof. The sectional material of the hot winding solid corrugated pipe comprises a first sectional material and a second sectional material; the first sectional material comprises a supporting rib and a first hot coating layer; the first sectional material comprises a connecting strip,a first half wave crest strip and a second half wave crest strip; the second sectional material comprises a buckle plate and a second hot coating layer; a buckling groove is formed in the middle partof the second sectional material; and the shape and size of the buckling groove are matched with the shape and size of the outer wall of a small wave crest structure formed by splicing the first halfwave crest strip and the second half wave crest strip. The sectional material adopts the first sectional material and the second sectional material which are solid wall structures, and the sectionalmaterial can facilitate the cooling forming of a pipe, the production speed of the pipe is increased and the welding quality of the pipe can be improved. The solid corrugated pipe is of a solid wall structure, and is high in ring stiffness, good in impact resistance and destruction resistance, and excellent in ring flexibility. The manufacturing method of the corrugated pipe adopts hot winding tocompound all units together, the welding strength is high and the residual stress problem basically does not exist.

Description

Technical field

[0001] The invention relates to the field of pipe materials, in particular to a hot-wound solid corrugated pipe and its profile and a manufacturing method thereof. Background technique

[0002] At present, the pipe materials in the fields of drainage and sewage are generally steel-plastic composite spiral corrugated pipe and HDPE double-wall corrugated pipe. Among them, the steel-plastic composite spiral corrugated pipe has the following shortcomings: 1. The adhesion between steel and plastic is poor, and it is in the process of processing. , The steel belt has great internal stress. After the pipe is placed outdoors for a certain period of time, due to thermal expansion and contraction and other factors, the steel and plastic are severely separated, resulting in a serious decrease in the ring stiffness of the pipe after being buried in the ground , Causing engineering accidents; 2. Due to the poor corrosion resistance of the steel belt, it is easy to cause corros...

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