Galvanized pipe-based glass fiber reinforced plastic tree-grain pipe and preparation method thereof

Abstract

The invention discloses a glass fiber reinforced plastic tree-grain pipe based on a galvanized pipe and a preparation method of the glass fiber reinforced plastic tree-grain pipe. The glass fiber reinforced plastic tree-grain pipe comprises a galvanized pipe, an inner reinforcing layer, a tree-grain pipe reinforcing layer and a tree-grain layer which are sequentially wrapped from inside to outside. The galvanized pipe, the inner reinforcing layer, the tree-grain pipe reinforcing layer and the tree-grain layer form a layered pipeline structure. While the manufacturing efficiency of the tree-grain pipe is improved, the density during forming of the glass fiber reinforced plastic tree grains is improved, and the size accuracy of the manufactured tree-grain pipe is improved.

Description

technical field [0001] The invention relates to the technical field of composite pipes; in particular, it relates to a galvanized steel pipe-based fiberglass tree pattern pipe and a preparation method thereof. Background technique [0002] Multilayer composite materials are mostly used in metallurgical electrodes, electrolytic plating industry and electrochemical industry, as well as some materials that need to be conductive but also corrosion-resistant. When the ratio of the cross-sectional width to thickness of the composite bar is greater than or equal to 5, the material cross-section is large, the wall thickness is small, and the use rigidity is low. In order to improve the rigidity of this type of specification, carbon steel rods are generally used as the core material in composite materials. , the ratio of cross-sectional width to thickness is greater than or equal to 5 in the hot rolling deformation of multi-layer metal, due to the edge effect and the principle of lea...

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Problems solved by technology

When the ratio of the cross-sectional width to thickness of the composite bar is greater than or equal to 5, the material cross-section is large, the wall thickness is small, and the use rigidity is low. In order to improve the rigidity of this type of specification, carbon steel rods are generally used as the core material in composite materials. , the ratio of cross-sectional width to thickness is greater than or equal to 5 in the hot rolling deformation of multi-layer metal, due to the edge effect and the principle of least resistance, the middle metal flows slowly, and the edge metal deformation is fast, causing the upper and lower wide surfaces to form a convex surface, and the end Cracks on the small face seriously affect the surface quality of the product, and also reduce the yield of the bar

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