瓦格纳尔专利

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CONSTRUCTION MACHINERY

喷涂无界 匠心不歇

EXPRETEN UNTER SICH 德国品牌·始于1947

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通过高品质组件与定制化的整体解决方案提高效率。瓦格纳尔通过对其喷涂系统的持续维护,确保了其系统的可靠性。

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无气喷涂原理、优缺点

2021-09-16 09:06:43 浏览量:168
无气喷涂原理、优缺点
Airless atomization principle 无气雾化原理

Any fluid put under high pressure and forced to pass through a small orifice reaches a very high speed and the consequent impact with air determines its splitting in small drops. 

流体在高压驱动下以高速通过一个细微的孔径时,经过于空气的连续撞击将其分离成细小的液滴.

The necessary pressure to obtain the paint atomization is proportional to the viscosity and molecular cohesion of the paint itself.

 油漆雾化所需要的压力与油漆自身的粘度和分子内聚力成比例.



Airless guns 无气雾化

An Airless gun work essentially as a fluid valve with a nozzle holder in front. The only function of the gun is to simply open and close the material valve. No atomizing air is required. 

一把无气喷枪本质上来讲就是一个前端带有喷嘴的流体阀.喷枪的唯一功能就是简单开启和关闭这个流体阀.不需要额外的雾化空气.


The size and shape of the jet can only be altered by changing the nozzle. The diameter of the nozzle bore determines the material flow volume, while the size and geometry of the elliptically shaped nozzle opening determine the height and width of the jet. 

喷涂的扇面大小只能通过更换喷嘴来实现. 喷嘴开孔的尺寸决定了喷涂的油漆流量.而喷嘴椭圆型的几何形状和大小决定了喷涂的高度和宽度.

无气喷涂



无气喷涂工作参数

供漆泵/无气喷枪安装示意图


Airless applications  无气喷涂应用


Airless is particularly well suited to 无气喷涂特别适用于:
 High viscosity materials, high and ultra-high solid paints 高粘度材料,高/超高固含量油漆
 High speed application 高速生产应用
 Large surfaces 大面积喷涂应用
 Anticorrosion and protective coatings applications 防腐等保护性涂层应用


Example of application areas 应用领域举例:
 Heavy carpentry 重型木工厂
 Shipyards 造船业
 Freight wagons, Shipping containers 货车,集装箱 
 Windmill blades and tower 风电叶片及塔筒
 Refineries and petrochemical plants 精炼和石化工厂
 Water and oil pipelines 水管和输油管道
 Off-shore and coastal installations 沿海工厂
 Infrastructures 基础设施


Airless atomization 无气雾化优缺点


ADVANTAGES 优点
 High speed application 高速喷涂应用
 Low over-spray, high transfer efficiency 低过喷,高转播效率
 High delivery for high surface coverage power 高表面覆盖能力
 High material viscosities can be applied 可用于高粘度材料
 Hose lengths up to 100m are possible 喷涂管路最长可达100米

DISADVANTAGES 缺点
 Poor surface quality 较差的表面质量
 Pattern shape can only be adjusted by changing nozzle 喷涂扇面只能通过更换喷嘴来调节
 Not suitable for most metalized materials or high abrasives (i.e.  ceramic) 不适用于大部分金属漆或高磨蚀性材料(如陶瓷)