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玻璃钢管生产工艺
[来源:] [作者:567zx] [日期:19-07-19] [浏览次数:]

玻璃钢管生产工艺主要有三种类型:往复式纤维缠绕工艺、连续式纤维缠绕工艺以及离心浇注工艺。
There are three main types of FRP production process: reciprocating filament winding process, continuous filament winding process and centrifugal casting process.
往复式纤维缠绕工艺(属于定长法):在这种工艺方法中,浸胶槽随转动的芯模作往复运动,长纤维玻璃丝以一定的斜角相对于芯模轴辅放,辅角(即缠绕角)受浸胶槽的移动速度和芯模转速之比控制,浸胶槽的平移运动由计算机化的机-电控制。缠绕层数逐渐增加,达到设计的壁厚为止。缠绕完成后,使制品中的树脂基本固化。固化后,从玻璃钢管中脱出芯模。
Reciprocating filament winding process (belongs to fixed length method): In this process, the dipping trough moves reciprocating with the rotating mandrel, the long fiberglass filament is placed with a certain oblique angle relative to the mandrel axis, the auxiliary angle (i.e. the winding angle) is controlled by the ratio of the moving speed of the dipping trough to the rotating speed of the mandrel, and the translation motion of the dipping trough is computerized. Mechanical-electrical control. The number of winding layers increases gradually until the designed wall thickness is reached. After winding, the resin in the product is basically cured. After curing, the core die is removed from the FRP pipe.
连续式纤维缠绕工艺(属于连续法) :该工艺是管子在运动中通过一个供给树脂预浸无捻粗纱,短切玻璃钢纤维和树脂砂混合物的供料站,管子是在芯模连续不断的前进中制成的。
Continuous filament winding process (belongs to continuous method): The process is that the pipe is made in the continuous progress of the core mould through a feeding station for resin prepreprepreg twistless roving, short cut fiberglass reinforced plastic fiber and resin sand mixture in motion.
离心浇注工艺(属于定长法) :在此工艺中,用切断的玻璃纤维增强材料和砂,喂入固定在轴承上的钢制模具中,在钢模一端注入加催化剂的不饱和树脂,使其浸渍增强材料,在离心力作用下,树脂置换出纤维及填料中的空气,从而制造出无孔隙的致密复合材料,由于离心力的作用管内壁形成一个平滑、光洁的富有树脂的内表面层,管材在较高温度下固化。用这种方法制造的管又称玻璃钢夹砂管。
Centrifugal casting process (belongs to fixed length method): In this process, cut glass fiber reinforced material and sand are fed into the steel mould fixed on the bearing, and unsaturated resin with catalyst is injected into one end of the steel mould to impregnate the reinforcing material. Under the action of centrifugal force, the resin replaces the air in the fiber and filler. The pore-free compact composite material is manufactured. Because of the centrifugal force, a smooth and smooth resin-rich inner surface layer is formed on the inner wall of the pipe, and the pipe solidifies at a higher temperature. The pipe manufactured by this method is also called FRP sandwich pipe.
世界上采用往复式纤维缠绕工艺制管的厂家比其它两种生产工艺生产厂家多的多,原因之一是往复式纤维缠绕工艺制造的玻璃钢管具有更广泛的用途,适用性比较好。
There are more manufacturers using reciprocating filament winding process than the other two processes in the world. One of the reasons is that the FRP pipe manufactured by reciprocating filament winding process has a wider use and better applicability.