Openair-Plasma® 可实现全自动洁净室喷涂
现代的触摸屏、液晶显示器和电视屏幕,对于生产工艺提出了很高的要求, 因为塑料部件在粘接组装前必须进行高透明的防刮伤和防静电涂层处理。同时,电子行业对高自动化程度的要求,需要采用高可靠性、高生产效率和处理效果的在线式表面处理工艺。
晶莹剔透的显示屏:等离子处理可实现完美的保护和功能涂层
Openair-Plasma® 工艺的微细常压等离子清洁和等离子活化处理为电子行业提供了极为有效的解决方案。在喷涂设备上进行防静电和防刮伤的喷涂之前,先要对塑料视窗部分进行等离子处理。由于 Openair-Plasma® 技术实现的高表面能,喷装的涂层可以均匀地铺展,形成均匀的薄膜。这不仅造就了无懈可击的产品外观,而且还大大降低了生产过程中的废品率。
晶莹剔透,耐刮伤的表面 - Openair®等离子技术对塑料和LCD显示器的处理
生产工艺的最后一个阶段,要在显示器的表面喷涂上一层特殊的涂层。该涂层可以改善显示器的抗刮擦性能,并且加强了采用PC(聚碳酸酯)和PMMA(聚甲基丙烯酸甲酯)制造的显示器表面的质量。
为了确保涂层牢固的粘附,还需要进行表面预处理。 Openair-Plasma® 提供了完美的在线工艺来完成这个任务,取代了使用 低压等离子处理的复杂过程。
这种工艺革新意味着可以对显示器生产的工艺流程进行简化,并大大降低废品率。
有关显示器制造的新闻
Success Story with GfO (Nanogate Group)
Several years ago one of the internationally leading specialists for plastic surface finishing, GfO AG Gesellschaft für Oberflächentechnik AG, Germany, was faced with the challenge of implementing the use of a new inkjet method for which a new plant for painting plastic display windows was to be specifically built.
Application
Given the high degrees of automation demanded today, inline processes need to be implemented for applying transparent, scratch-resistant coatings on to plastic components such as display front panels. GfO”s standard then current manual method of pretreating front panels with alcohol and cloths was to be replaced by a new, qualitatively higher-grade pretreatment technique which guaranteed consistency. To ensure long-lasting adhesion of paint while creating a flawless surface would simply not be possible without subjecting the plastic components to an additional micro-fine cleaning and activation process step before painting. The new overall painting process in the clean-room would now be handled in a fully automated, environmentally friendly and more expedited manner. After having considered a number of different options, GfO decided in favor of the Openair-Plasma® technology. After the successful implementation, hundreds of thousands of plastic panels for the automotive industry are now being pretreated with plasma and coated with scratch-resistant paint in a single year, not to mention the large quantities of display windows intended for other industrial sectors such as the Medical, White Goods, Aviation and Electronics industries.
In this application an Openair-Plasma® rotary nozzle of type 1004 that was specifically designed for gentle treatment for the complete surface is being controlled by a linear robot. The plastic panels, after having undergone micro-fine cleaning and strong activation, receive their scratch-resistant coating in the paint shop immediately following plasma treatment. Thanks to the high surface energy generated through atmospheric plasma, the paint is transformed into a homogeneous film.
Benefits Openair-Plasma® offers the user the following values:
- Improvement of the paint adhesion
- Homogeneous paint application with a flawless paint appearance
- Environmentally friendly pretreatment without the use of wet chemicals
- Inline pretreatment in automated process operations
- Safety and consistency of the technological application in the production process
- Increased throughput speed
- Extended maintenance intervals
- Higher cost-effectiveness
Discover more application examples of plasma technology in industrial processes:
下期 PlasmaTalks 网络研讨会和活动
High-quality consumer cameras thanks to coordinated Openair-Plasma® surface treatment and special adhesives
近期的展会和活动
在我们参加的展会和活动中,更深入地了解等离子体应用!
NPE 2024
West Building Level 2 - Expo Hall, Booth W7479
Orange County Convention Center
Orlando, Florida
SMTconnect
Hall 4, booth 351
NürnbergMesse
Karl-Schönleben-Str.
Messeplatz 1
90471 Nuremberg
Germany
Advanced Engineering 2024
Booth P154
NEC Birmingham
North Ave, Marston Green
Birmingham