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静电喷塑工艺原理,静电喷塑机
静电喷塑机是用在物体表面处理的一种工业设备,可将含有环氧树脂、聚酯树脂(塑料)等材料的粉末状涂料喷出吸附到物体上,喷好的物体在进入固话炉内固化,得出完整的涂层,以发挥装饰、防腐等功能。
Electrostatic spray machine is used in an industrial equipment of surface treatment, the containing epoxy resin, polyester resin (plastic) powder coating spraying materials such as adsorption onto an object, the object in the spray curing fixed furnace, obtained a complete coating, decoration, anti-corrosion and other functions to play.
静电喷塑工艺原理:用静电喷粉设备(静电喷塑机)把粉末涂料喷涂到工件的表面,在静电作用下,粉末会均匀的吸附于工件表面,形成粉状的涂层;粉状涂层经过高温烘烤流平固化,变成效果各异(粉末涂料的不同种类效果)的最终涂层;喷涂效果在机械强度、附着力、耐腐蚀、耐老化等方面优于喷漆工艺,成本也在同效果的喷漆之下。
Electrostatic spray process principle: the use of electrostatic dusting equipment (electrostatic spray machine) the powder coating is sprayed onto the surface of the workpiece under the electrostatic interaction, the powder will be uniformly adsorbed on the surface of the workpiece, the formation of powder coating; powder coatings after high temperature baking leveling curing, into effect (different effect of different kinds of powder coatings in the final) coating; spraying effect on mechanical strength, adhesion, corrosion resistance, aging resistance and superior cost in spray painting process, under the same effect.
前处理
Pre-processing
除掉工件表面的油污、灰尘、锈迹,并在工件表面生成一层抗腐蚀且能够增加喷涂涂层附着力的“磷化层”。 主要工艺步骤:除油、除锈、磷化、钝化。工件经前处理后不但表面没有油、锈、尘,而且原来银白色有光泽的表面上生成一层均而粗糙的不容易生锈的灰色磷化膜,既能防腐又能增加喷塑层的附着力相关设备:前处理槽(混凝土做槽 ,数量等同于前处理工序数); 相关材料(化学药品):硫酸、盐酸、纯碱(Na2CO3),酸性除油剂,磷化液,钝化液。
Remove the oil, dust and rust on the surface of the workpiece, and form a layer of phosphating which can resist corrosion and increase the adhesion of the coating". The main processes are oil removal, rust removal, phosphating and passivation. The workpiece after preprocessing not only surface without oil, rust, dust, and the original silver white form a layer of both rough gray phosphating film is not easy to rust on the surface gloss, both corrosion resistance and can increase adhesion related equipment: spray layer pretreatment tank (concrete tank, equal to pretreatment number of workers); related materials (chemicals): sulfuric acid, hydrochloric acid and sodium carbonate (Na2CO3), acidic degreasing agent, phosphating, passivation.
静电喷涂
Electrostatic spraying
将粉末涂料均匀地喷涂到工件的表面上,特殊工件(包含容易产生静电屏蔽的位置)应该采用高性能的静电喷塑机来完成喷涂。工艺步骤:利用静电吸附原理,在工件的表面均匀的喷上一层粉末涂料;落下的粉末通过回收系统回收,过筛后可以再用。 相关设备:1、静电喷塑机(静电粉末喷涂机)1台或多台2、具有粉末回收功能的喷房(单工位或双工位)3、空气压缩机和压缩空气净化器(油水过滤器)相关材料: 粉末涂料(喷涂原料,俗称“塑粉”,有高光、亮光、半亚光、亚光、砂纹、锤纹、裂纹等不同效果不同颜色)。
Spray the powder coating evenly on the surface of the workpiece, and the special workpiece (including the position of easy electrostatic shielding) shall be sprayed with high performance electrostatic spraying machine. Process steps: use the principle of electrostatic adsorption, spray a layer of powder coating on the surface of the workpiece; the powder is recovered by recycling system, and can be reused after screening. Related equipment: 1, electrostatic spray machine (electrostatic powder spraying machine) 1 or more, with 2 room spray powder recovery function (single or double) 3, air compressor and compressed air purifier (oil filter) related materials: powder coating (spray material, commonly known as "plastic powder", a high light, light, semi matte, matte, sand grain, hammer, cracks and other different effects of different colors).
高温固化
High temperature curing
将工件表面的粉末涂料加热到规定的温度并保温相应的时间,使之熔化、流平、固化,从而得到我们想要的工件表面效果。 工艺步骤: 将喷涂好的工件推入固化炉,加热到预定的温度(一般180度),并保温相应的时间(15分钟);开炉取出冷却即得到成品。 提示:加热及控制系统(包括电加热、燃油、燃气、燃煤等各种加热方式)+保温箱体=固化炉。 相关设备:固化炉。(需要自动控制的参数:温度、保温时间,加热方式可以采用电加热、燃油加热、燃气加热、燃煤加热等方式,可以根据您所在地区的能源情况灵活选择)。 相关材料:能够控制温度和保温时间在合理范围的高温固化炉(或称烘箱、烤箱)。
The powder coating on the surface of the workpiece is heated to the required temperature and the corresponding time is heated to melt, smooth and solidify so as to obtain the surface effect of the workpiece we want. Process steps: workpiece spraying good into the oven, heated to a predetermined temperature (180 degrees), and holding the corresponding time (15 minutes); blow out cooling to obtain finished. Tip: heating and control system (including electric heating, fuel, gas, coal and other heating methods) + insulation box = curing furnace. Related equipment: curing furnace. (required parameters: automatic control of temperature, heating time, heating can use electric heating, fuel heating, gas heating, coal heating etc., can be selected flexibly according to the energy situation in your area). Related materials: a high temperature curing oven (or oven, oven) capable of controlling temperature and holding time in a reasonable range.

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