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How to Repair Damaged Membrane Structures?

Date: 2022-03-30 Author: 科琦气膜

  1、 根据膜结构材料的不同,具体修复方法如下:

  1.PVC涂层覆盖的薄膜材料可通过热风机进行修复。清洁待修补区域,将其平放,将补片铺在待焊接表面上,用热风融化膜表面的PVC涂层,然后用小型辊压机将补片与下膜牢固连接。上述情况1至3为现场维修,具体维修方法取决于所用薄膜材料的类型。

  2.对于PTFE涂层覆盖的膜,在补片和原始受损膜之间添加一层FEP膜,

  然后用特殊的便携式焊接设备将其压在补片上。用高温熔化FEP膜,将补片焊接在膜表面。在具体操作过程中,注意掌握加热温度和加热时间,使待焊接薄膜的表面涂层或FEP薄膜充分熔化,牢固粘合在一起,还应防止薄膜材料因过热而燃烧。

  注:需要修复的补片通常位于外表面。在潮湿区域,应在内表面和外表面分别焊接相同尺寸的补片,以防止修复区域内的水分和霉菌造成污染。

  2、 修理工作可分为以下几种方式:

  1.如果只有局部薄膜材料的表面涂层磨损,且基布的纤维完好无损,则可以使用高性能透明粘合剂在磨损区域粘贴或热封。

  2.如果膜表面的损伤范围长度小于50mm,则切割一块椭圆形或圆形膜布,并将其焊接在损伤区域作为加强层。

  3.如果膜表面的损伤范围长度大于50mm但小于300mm,则应准备一条长度和宽度大于损伤范围150mm的膜条,并将其焊接在损伤区域的膜表面上,作为加强层。

  4.如果膜表面受损部分长度超过300mm,整个受损装置应拆除并运回工厂进行维修或更换。

 

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