Shandong Julong Prepainted Galvanized Steel Co., Ltd has the business pattern of export trade, domestic trade and coated plate processing and distribution center. For many years, we have continuously focused on the business development of coated steel products, including color steel plate, color aluminum plate, printing plate, nano color aluminum plate, household appliance plate, lampshade plate, writing board, galvanized plate, aluminum zinc plate, cold rolled plate, hot rolled plate and other products. Our domestic trade has formed a national marketing network relying on the subsidiaries and sub agents in East China, South China, central China and Northeast China. In addition, our products are exported to South America The Middle East, Southeast Asia, Central Asia, Africa, South Korea and other countries and regions have been highly praised by customers. In the future, the company will continue to strive to build its products into a brand with core competitiveness in comprehensive services in the field of steel trade.

Today, Julong Xiaobian will explain the basic principle of galvanizing for you.

In the plating bath containing zinc plating solution, the cleaned and specially pretreated parts to be plated are used as the cathode, and the anode is made of plated metal. The two poles are respectively connected with the positive and negative poles of DC power supply. The galvanizing solution is composed of an aqueous solution containing compounds of plated metal, conductive salts, buffers, pH regulators and additives. After being electrified, the metal ions in the galvanizing solution move to the cathode under the action of potential difference to form a coating. The metal ions formed by the metal of the anode enter the galvanizing solution to maintain the concentration of the plated metal ions. In some cases, such as chromium plating, it is an insoluble anode made of lead and lead antimony alloy, which only plays the role of transmitting electrons and conducting current. The chromium ion concentration in the electrolyte needs to be maintained by regularly adding chromium compounds to the plating solution. During galvanizing, the quality of anode material, composition of galvanizing solution, temperature, current density, energizing time, stirring strength, precipitated impurities, power waveform, etc. will affect the quality of coating, which needs to be controlled in time.