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火焰设备可喷涂PEEK涂层 - China Medical Device Manufacturer
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Fri, January 19th, 2018

2009年4月CMDM电子快讯 » 技术新知
火焰设备可喷涂PEEK涂层

By: Stephanie Steward

55020.tif
PG-550通用火焰喷涂系统可将高性能Vicote涂料喷涂到金属基材表面。

高性能聚合物供应商威格斯公司(Victrex; 美国宾州,West Conshocken;www.victrex.com)与喷涂行业专家Alamo Supply公司(美国德州休斯顿;www.alamosupplycompany.com)展开合作,开发出一种能将PEEK涂料喷涂到各种热敏材料上的喷涂设备,以满足客户需求。这套火焰喷涂系统能将Vicote涂料喷涂到难以进行PEEK高温处理的热敏基材表面,包括铝、铜及其合金。

Vicote涂料具有耐磨损、耐侵蚀、耐刮擦和耐腐蚀等特性,适合用于医疗器械元件。它们还拥有良好的电介质强度,并能耐受反复灭菌。采用传统的静电粉末喷涂方法可将PEEK涂料覆盖到某些材料表面——包括碳、不锈钢、铸钢和钛金属——只要该种基材能够耐受750F的处理温度。

但许多基材无法耐受这一温度。PG-550通用火焰喷涂系统可通过减少基材在此高温下的暴露时间,将这种高性能涂料喷涂到利用常规方法很难喷涂或喷涂代价过高的产品表面。

此前,火焰喷涂技术仍仅限于处理一些低性能的聚合物、合金和陶瓷/金属复合涂料,它们的处理温度低于PEEK涂料。Victrex全球投资业务部负责人Andrew Storm解释说:“由于缺乏适合高性能涂料的火焰喷涂技术,金属和陶瓷涂层的性能受到限制。”

借助这一火焰喷涂系统,那些希望或需要采用火焰喷涂工艺处理产品的制造商,如今可以在他们的设计中加入高性能聚合物涂层。该系统易于使用和设置,其喷嘴可将聚合物喷涂形成光滑均匀的涂层。Vicote涂料粉末经过枪体加热到一定的熔融温度,然后高速喷涂到基材表面。涂料随喷枪围绕产品前后移动在基材表面形成一层强韧持久的涂层。

PG-550令OEM制造商既能利用成本效益突出的火焰喷涂技术,又能获得Vicote 涂层的优越性能。Storm说道:“燃烧和传送气体的成本比传统喷涂方法更低。”因此,火焰喷涂技术可以成为喷涂大型精密部件时更为节能、高效的一种方式。


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