喷粉室： 工件通过输送链进入喷粉房的喷枪位置准备喷涂作业,静电发生器通过喷枪枪口的电极针向工件方向的空间释放高压静电(负极)，该高压静电使从．喷枪口喷出的粉末和压缩空气的混合物以及电极周围空气电离(带负电荷)。钢管经过挂具通过输送链接地(接地极)，这样就在喷枪和工件之间形成一个电场占粉末在电场力和压缩空气压力的双重推动下到达工件表面，依靠静电吸引在钢管表面形成一层均匀的涂层。
Powder spraying chamber: the workpiece enters the spray gun position of the powder spraying chamber through the conveying chain to prepare for spraying. The electrostatic generator releases high-voltage static electricity (negative pole) to the space in the direction of the workpiece through the electrode needle at the gun mouth. The high-voltage static electricity ionizes the mixture of powder and compressed air ejected from the gun mouth and the air around the electrode (with negative charge). The steel pipe is connected to the ground (grounding electrode) by means of transportation through the hanger, so that an electric field occupying powder is formed between the spray gun and the workpiece and reaches the workpiece surface under the double push of electric field force and compressed air pressure, and a uniform coating is formed on the surface of the steel pipe by electrostatic attraction.