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一、前 言 圆柱形玻璃钢制品通常是采用缠绕成型法和离心旋转成型法制造。这些成型方法具有很高的生产效率,但也存在一定的不足之处。例如,在高速旋转下成型需要消耗大量能源;要求高精度和高强度的模具;制品的轴向强度和环向强度有较大的差异。 本文报道一种制造玻璃钢大口径管子的新型成型方法——连续旋转模制(CRM)成型工艺。这种新工艺具有产品机械强度均匀,设计灵活,生产效率高和经济效益好等特点。
First, the foreword Cylindrical FRP products are usually manufactured by the winding method and centrifugal rotation molding. These molding methods have high production efficiency, but there are also some shortcomings. For example, molding at high speed requires a large amount of energy to be formed; dies that require high precision and strength; and products that vary greatly in axial strength and hoop strength. This article reports a new molding method for making large-diameter FRP pipes - Continuous Rotational Molding (CRM). This new technology has the characteristics of uniform mechanical strength, flexible design, high production efficiency and economic benefits.