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How about weaving, winding, and extruding pipes? How to choose qualified BWFRP pipes?

2023-04-23 16:23

How about weaving, winding, and extruding pipes? How to choose qualified BWFRP pipes? The fiber braided pultruded cable protective sleeve, English name is BWFRP, which is a new composite material. It is made of alkali free glass fiber and resin, and is formed by continuous fiber online complete braiding, winding, pultruding and extrusion. It is commonly used in municipal, power grid and other projects. It is commonly referred to as braided winding pultruded pipe.
Is it good to weave and wrap the extruded tube?
As a new type of power protection pipe, the development history of winding and extrusion pipes is relatively short. Although it has only been 8 years now, it has broken through the technical barriers of traditional pipes and has outstanding performance in various aspects such as ring stiffness, tensile strength, impact resistance, corrosion resistance, etc. It has gradually become a product that replaces traditional PVC pipes, MPP pipes, and coated steel pipes. There are more enterprises investing in the production of BWFRP, and the market capacity is increasing year by year, So the development of winding and extrusion pipes has gradually become the mainstream trend of power protection pipes!
Compile a comparison of parameters between wrapped and extruded pipes and general pipes
How to choose qualified BWFRP pipes?
Due to the continuous fiber online complete weaving, winding, pulling and extrusion integrated molding process of BWFRP production, rather than the traditional hand lay fixed length winding process, which has a high technical threshold, there are many counterfeit and inferior products in the market. It is important to pay attention to screening and teach you a few simple methods to distinguish BWFRP:
(1) Look at the color
Genuine BWFRP pipes appear light green, while counterfeit BWFRP pipes generally appear ivory white due to insufficient production technology.
(2) Look at the grain pattern
Genuine BWFRP pipes have clear textures both inside and outside, presenting clear woven patterns that are uniform and have a bumpy feel to the touch; Counterfeit BWFRP pipes are mostly fixed length winding processes, with no woven patterns on the inner wall and wavy rather than woven patterns on the outer wall.
(3) Check the wall thickness
Genuine BWFRP pipe with uniform wall thickness and few burrs; The wall thickness of counterfeit BWFRP pipes is inconsistent.
(4) Listening to sound
Knock the pipe wall with your hand, the authentic BWFRP pipe has a crisp and loud sound; And knocking on the counterfeit BWFRP pipe made a low pitched sound.
(5) Measuring ring stiffness
Throw the BWFRP pipe from a height of 4-5 meters, and the genuine BWFRP pipe is intact, while counterfeit BWFRP pipes usually have cracks, crushing, and other situations.

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