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铁艺护栏静电喷塑工艺流程

来源:http://www.jnghbxg.com 日期:2021-06-24 发布人:yangxiang 浏览次数:
1、前处理:
1. Pretreatment:
目的: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”。
Objective: to remove the oil, dust and rust on the surface of the workpiece, and form a "phosphating layer" on the surface of the workpiece, which is anti-corrosion and can increase the adhesion of the spray coating.
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匀而粗糙的不容易生锈的灰色磷化膜,既能防锈又能增加喷塑层的附着力
Main process steps: degreasing, derusting, phosphating and passivation. After pretreatment, there is no oil, rust and dust on the surface of the workpiece, and a uniform and rough gray phosphating film which is not easy to rust is formed on the original silver white glossy surface, which can not only prevent rust, but also increase the adhesion of the plastic spraying layer
2、静电喷涂
2. Electrostatic spraying
目的: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。
Objective: the powder coating is evenly sprayed on the surface of the workpiece, and the special workpiece (including the position easy to produce electrostatic shielding) should be sprayed by high-performance electrostatic spraying machine.
工艺步骤:
Process steps:
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;
Using the principle of electrostatic adsorption, spray a layer of powder coating evenly on the surface of the workpiece;
落下的粉末通过回收系统回收,过筛后可以再用
The fallen powder is recycled by the recycling system and can be reused after screening
3、高温固化
3. High temperature curing
目的: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。
Objective: to heat the powder coating on the surface of the workpiece to the specified temperature and keep it warm for the corresponding time to make it melt, level and solidify, so as to obtain the desired surface effect of the workpiece.
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185度),并保温相应的时间(15分钟);开炉取出冷却即得到成品。
Process steps: push the sprayed workpiece into the curing furnace, heat it to the predetermined temperature (generally 185 ℃), and keep it for 15 minutes; The finished product can be obtained by heating and cooling.
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。
Tips: heating and control system (including electric heating, fuel oil, gas, coal and other heating methods) + insulation box = curing furnace.
4、装饰处理:
4. Decoration treatment:
目的:使经过静电喷涂后的工件达到某一种特殊的外观效果如:各种木纹、花纹、增光等。
Objective: to make the workpiece after electrostatic spraying achieve a special appearance effect, such as various wood grain, pattern, gloss, etc.
工艺步骤:罩光;转印等处理工艺
The process steps are: shading; Transfer printing and other processing technology