1. the difference between processes:
Hot-dip galvanizing is a necessary time to remove oil, pickle, dip medicine, and immerse the workpiece in the dissolved zinc solution after drying.
Cold galvanizing, also known as galvanizing, is the use of electrolytic equipment to remove oil and pickle the workpiece into the solution of zinc salts, and connect the negative electrodes of the electrolytic equipment; on the opposite side of the workpiece, place a zinc plate to connect the positive electrodes of the electrolytic equipment, connect the power supply, and use the current to move from the positive to the negative electrodes in the direction of stacking on the workpiece. Deposit a layer of zinc.
2. the difference between appearance and appearance:
The surface of electroplated zinc is relatively lubricated and bright. The Color Passivation Process of electroplated zinc is also yellow-green, showing seven colors. The white passivation process is used to make the plating blue-white or green. The plating of the white passivation process is slightly colorful from a certain point of view with sunlight. Galvanized Pipe Knowledge Portal Network
In the corner and edge part of the disordered workpiece, electric firing occurs easily and becomes dim. The zinc layer in this part is thicker. It is easy to form a dead angle of current at the pudendal corner and produce a dark area of undercurrent, where the zinc layer is thinner. There are no zinc nodules and caking on the whole workpiece. Knowledge of galvanized pipe
3. The appearance of hot-dip galvanizing is slightly rougher than that of galvanizing, and it is silver-white. The appearance of hot-dip galvanizing is simple and the process water marks and a few droplets occur, especially at one end of the workpiece. But the galvanizing layer of hot dip galvanizing is tens of times thicker than that of galvanizing, and its anticorrosion function is tens of times that of galvanizing.