金属工件非常大的“天敌”是腐蚀——锈迹斑斑的汽车车身、锈蚀穿孔的管道、褪色的五金件，都是腐蚀的“杰作”。电泳线正是利用电流的力量，为金属工件“画”出一层致密、均匀、耐腐蚀的“铠甲”，让金属穿上“永不生锈”的外衣。

The biggest enemy of metal workpieces is corrosion - rusty car bodies, corroded and perforated pipes, and faded hardware are all masterpieces of corrosion. Electrophoretic lines use the power of electric current to "draw" a dense, uniform, and corrosion-resistant "armor" on metal workpieces, allowing the metal to wear a "rust free" outer layer.

电泳线，又称电泳涂装线或电泳生产线，是一种利用电泳涂装技术将涂料微粒沉积在工件表面并形成涂层的设备或工艺线。其基本原理是在直流电场的作用下，带正电荷或负电荷的胶体粒子（如涂料中的树脂和颜料粒子）向相应的电出色移动，并沉积在基底表面形成涂膜。电泳涂装按沉积性能可分为阳出色电泳（工件是阳出色，涂料是阴离子型）和阴出色电泳（工件是阴出色，涂料是阳离子型）。阴出色电泳因耐腐蚀性强，已成为汽车行业的主流工艺。

Electrophoretic line, also known as electrophoretic coating line or electrophoretic production line, is an equipment or process line that uses electrophoretic coating technology to deposit coating particles on the surface of workpieces and form coatings. The basic principle is that under the action of a direct current electric field, colloidal particles with positive or negative charges (such as resin and pigment particles in coatings) move towards the corresponding electrodes and deposit on the substrate surface to form a coating film. Electrophoretic coating can be divided into anodic electrophoresis (where the workpiece is the anode and the coating is anionic) and cathodic electrophoresis (where the workpiece is the cathode and the coating is cationic) based on deposition performance. Cathodic electrophoresis has become the mainstream process in the automotive industry due to its strong corrosion resistance.

电泳线的完整工艺流程包括预处理、电泳涂装、电泳后清洗和烘干四大工序。预处理包括除油、除锈、磷化等步骤。电泳涂装将预处理后的工件浸入电泳槽中，在直流电场作用下，带电胶体粒子向工件表面移动并沉积，形成均匀的涂层。电泳后清洗用超滤液和去离子水进行多次清洗。非常后将清洗后的工件送入烘炉烘干，使涂层完全固化。整个过程至少包括电泳、电沉积、电渗、电解四个电化学反应过程。

The complete process of electrophoresis line includes four major steps: pretreatment, electrophoresis coating, post electrophoresis cleaning, and drying. Pre treatment includes steps such as oil removal, rust removal, phosphating, etc. Electrophoretic coating immerses the pre treated workpiece into an electrophoresis tank. Under the action of a direct current electric field, charged colloidal particles move towards the surface of the workpiece and deposit, forming a uniform coating. Wash multiple times with ultrafiltrate and deionized water after electrophoresis. Finally, the cleaned workpiece is sent to an oven for drying to fully cure the coating. The entire process includes at least four electrochemical reaction processes: electrophoresis, electrodeposition, electroosmosis, and electrolysis.

电泳涂装的核心优势在于高涂层质量、出色节能和适用性广。电泳涂装能够形成均匀、致密且耐腐蚀的涂层。涂料利用率高，且能减少废液和废气的排放。2025年中国电泳涂装行业进入转型阶段，粉末电泳漆和水性电泳漆加速替代传统溶剂型产品。电泳涂装是汽车车身涂装的主要工艺，也是冰箱、洗衣机等家电产品外壳制造的重要工艺。从汽车车身到建筑五金，电泳线正在用电流的力量为金属工件构筑起一道坚实的防腐屏障。

The core advantages of electrophoretic coating are high coating quality, high efficiency and energy saving, and wide applicability. Electrophoretic coating can form a uniform, dense, and corrosion-resistant coating. The coating has a high utilization rate and can reduce the discharge of waste liquid and exhaust gas. In 2025, China's electrophoretic coating industry will enter a transformation stage, with powder electrophoretic paint and water-based electrophoretic paint accelerating the replacement of traditional solvent based products. Electrophoretic coating is the main process for car body coating, as well as an important process for manufacturing the shells of household appliances such as refrigerators and washing machines. From car bodies to building hardware, electrophoresis lines are using the power of electric current to construct a solid anti-corrosion barrier for metal workpieces.

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This article is a friendly contribution from the robot painting line For more information, please click: http://www.sdcjtz.com We will provide detailed answers to your questions. You are welcome to log in to our website and leave a message

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