Manufacturing method for glass steel pipeline in zero-degree winding manner

Abstract

The invention discloses a manufacturing method for a glass steel pipeline in a zero-degree winding manner. The method sequentially comprises the steps that winding yarn immersed in resin is used for hoop winding, then, a wire guiding head drives the winding yarn to pass multi-tooth comb rings buckled at the two ends of a core die to be axially wound, finally, winding yarn immersed in resin is in hoop winding again to stabilize an axial winding layer, hoop and axial winding is repeated, and pipeline winding with different strength requirements is achieved. Continuous winding of the axial zero degree of the winding yarn and pipelines is achieved, the axial mechanical performance of the pipelines is optimal, and then the high requirement of industrial fields for the axial performance can be met. The required axial strength is achieved, the production cost is reduced to the maximum degree, meanwhile, the pipeline thickness is reduced, and the pipelines are convenient to transport and use.

Description

Technical field [0001] The invention relates to a method for manufacturing a zero-degree winding FRP pipe. Background technique [0002] At present, most of the manufacturing process of FRP pipes adopts the winding process. However, the fiber winding technology has an obvious limitation. It is difficult to lay pure longitudinal fibers, that is, 0° angle fibers along the axis of the product, which limits its application in the manufacture of certain structural tubular products. , Such as: power transmission and distribution system poles, communication towers, chimney flues, wind turbine towers, overhead liquid pipes, petrochemical pipelines, launch tubes and other industries that require high axial performance. [0003] In order to achieve the strength requirements of the product’s axial mechanical properties, the method of reducing the angle between the winding yarn and the axial direction or increasing the thickness of the pipe is generally adopted during the production process. ...

AI Technical Summary

Problems solved by technology

[0002] At present, the manufacturing process of FRP pipes mostly adopts the winding process. However, the fiber winding technology has an obvious limitation. It is difficult to lay purely longitudinal fibers along the axis of the product, that is, at a 0° angle, which limits its application in the manufacture of certain structural tubular products. , such as: power transmission and distribution system poles, communication towers, chimney flues, wind turbine towers, overhead infusion pipes, petrochemical pipelines, launch tubes, etc., which require high axial performance in various industries

[0003] In order to meet the strength requirements of the axial mechanical properties of the product, the method of reducing the angle between the winding yarn and the axial direction or increasing the thickness of the pipe is generally used in the production process. Reducing the angle between the winding yarn and the axial direction will easily cause uneven yarn distribution on the pipe and cause Axial performance has limited contribution; increasing pipe thickness increases production costs and also has an effect on pipe diameter

[0004] Patent No. 200410018824.8 discloses a zero-degree winding method for FRP pipes. The application mentions the use of unidirectional cloth or grid cloth with a width of 200mm to 300mm to wrap circumferentially from the tangential direction of the mold. The width of the unidirectional cloth used is limited. , after hoop winding, the axial direction is discontinuous zero-degree winding, the axial fiber has no tension, and the product performance is not uniform

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