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BEIHAI YUEDA FRP PRODUCTS
The production process of fiberglass pipes.
Release time:
2019/08/05
The production processes of fiberglass pipes mainly include three types: continuous fiber winding process, reciprocating fiber winding process, and centrifugal casting process. 1. Continuous Fiber Winding Process (Continuous Method): This process involves the pipe being formed while in motion through a feeding station that supplies resin-impregnated non-twisted roving, chopped fiberglass, and a resin-sand mixture. The pipe is continuously produced as it advances over a core mold. 2. Reciprocating Fiber Winding Process (Fixed-Length Method): In this method, the resin dipping tank moves back and forth in conjunction with the rotating core mold. Long fiberglass strands are placed at a certain angle relative to the core mold axis, and the angle of winding is influenced by the movement of the resin dipping tank.
There are three main types of fiberglass pipe production processes: continuous fiber winding process, reciprocating fiber winding process, and centrifugal casting process.
Continuous fiber winding process (belonging to continuous method): This process involves the pipe being produced while in motion through a supply of resin-impregnated non-twisted roving, short-cut fiberglass fibers, and a resin-sand mixture at the feeding station, with the pipe being continuously formed as the core mold advances.
Reciprocating fiber winding process (belonging to fixed-length method): In this process, the resin-impregnated tank moves back and forth with the rotating core mold, and long fiberglass strands are placed at a certain angle relative to the core mold axis. The auxiliary angle (i.e., winding angle) is controlled by the ratio of the movement speed of the resin-impregnated tank to the rotation speed of the core mold. The translational movement of the resin-impregnated tank is controlled by computerized electromechanical systems. The number of winding layers gradually increases until the designed wall thickness is reached. After winding is completed, the resin in the product is allowed to cure. Once cured, the core mold is removed from the fiberglass pipe.
Centrifugal casting process (belonging to fixed-length method): In this process, cut fiberglass reinforcement materials and sand are fed into a steel mold fixed on bearings. Unsaturated resin with a catalyst is injected at one end of the steel mold to impregnate the reinforcement materials. Under the action of centrifugal force, the resin displaces the air in the fibers and fillers, thus producing a dense composite material without pores. Due to the centrifugal force, a smooth, glossy resin-rich inner surface layer is formed on the inner wall of the pipe, which cures at a higher temperature. Pipes made using this method are also known as fiberglass sand-laminated pipes.
Due to its unique performance advantages, fiberglass rods and pipes have been widely used in more than ten related industries, including aerospace, railways, decorative architecture, home furniture, advertising displays, craft gifts, building materials and sanitary ware, yacht docking, sports materials, and sanitation engineering, and have received high praise, becoming the favored choice for new era merchants in the materials industry. Fiberglass products also differ from traditional material products, significantly outperforming traditional products in terms of performance, use, and lifespan attributes. Their characteristics of easy shaping, customization, and color mixing are favored by merchants and sellers, capturing an increasingly larger market share with broad prospects!
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