柏泰500mm口径抽沙管道浮筒

柏泰500mm口径抽沙管道浮筒

海上抗冲击塑料浮体河道抽沙浮筒外壳采用高密度聚乙烯材料，内部填充物采用聚苯乙烯泡沫塑料；通过置于发泡体中的进排气管通蒸汽加热使填充料成型，经过.可发性聚苯乙烯珠粒、预发泡、颗粒熟化、加料入塑料壳中、装入发泡模具、安装进排气管、通蒸汽加热成型、冷却定型等工艺获得塑料管道浮体新产品。抽沙管道浮体内部填充材料采用聚苯乙烯泡沫塑料，产品成本大幅度下降，其填充材料的吸水率明显降低，漂浮力明显提高。

Abstract:To protect the water along the main canal of the middle rout project in South-to-North Water Diversion from be- ing affected by floating trash at intakes,a cable-stayed device for trapping and raising floating trash was designed. Without damaging the original structure of the hydraulic structure, a trapezoidal trapping frame covered with filter was articulated in the front of diversion gate, and it was adjusted by winch hoist. The device effectively avoided various floating debris in main canal flowing from water diversion to intakes,which fundamentally solved the problem blockage of valves and equip ment in water plants,and improved their production efficiencyKeywords:floating trash;trapping and raising device;South-to-North Water Diversion Project; water diversion

柏泰500mm口径抽沙管道浮筒

        滚塑是一种成型中空塑料制品的方法，也称旋转成型或旋转横型。将塑料粉末加入模具中然后加热磨具并使之沿加热模具并使之沿两相互垂直的轴连接旋转模具内树脂，在重力和热量的作用下，逐渐均匀的涂面熔融粘附于模具表面，形成所需要的形状。然后冷却磨具，脱模得到制品。由于是自然冷却，脱模后的产品会有一定的公差。滚塑工艺相对于塑料成型经常采用的挤出、注塑和塑等工艺而言，更加适合与大中型货形状复杂塑料制品的产品、产品几乎无内应力等优点。