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          3.  非金属膨胀节是由哪些部分组成?
               经常有客户在来电采购非金属补偿器,都问一个问题那就是非金属补偿器是有哪些组成的?因为这涉及到比较专业性而且含有技术含量的可题,汇通技术为大家讲解一下非金属补偿器组成部分
               非金属补偿器的基本原理就是利用非金属材?#31995;?#26580;性来补偿管道系纯因温度变化而产生的热胀冷缩变形。在非金属补偿器的构造上主要有:蒙皮、保温棉、隔热填料层、机架、挡板、排水孔。
               蒙皮:是非金属补偿器的主要伸缩体,是由性能优良的硅橡胶或氧橡胶布因为这些材料具?#24515;?#39640;温和耐腐蚀性能,不钢钢丝网,保温棉等多层复合而成,是种高强密封复合材料。其作用是吸收膨胀量,防止漏气和雨水的渗漏。有良好的密闭性。
               保温棉:保温棉是兼顾非金属膨胀节的保温和气密性的双重作用,它是由玻璃纤维布、高硅氧布和各类保温棉组成,其长度和宽度与外层的蒙皮一致,具有良好的?#30001;?#24615;和抗拉强度。
               隔热填料层:非金属补偿器绝热的重要保证,是由硅酸铝棉等耐高温材科组成,其厚度可根据温度介质温度及耐温材?#31995;?#23548;热系数等通过传热计算确定。
               机架:有足够?#37027;?#24230;和刚度,材质与介质的温度相适应
            挡板:具有抗腐蚀、耐磨具有导流和保护隔热层的作用
                正是这些材料制成,铸就了非全属补偿器?#37027;?#22823;,它们对非金属补偿器很重要。非金属补偿器可补偿轴向、角向,具有无推力、简化支座设计、耐腐蚀、耐高温、消声减振等特点,体轻、结构简单、安装维修方便,而且非金属补偿器的价格低于金属补偿器、质量不低于进口产品,特別适用于热风管道及烟尘管道,并且在电厂、水泥厂、锅炉厂、化工厂尤其适用。

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