The general process of galvanization

During the hot dip galvanizing of steel structures in accordance with the cleaned liquid zinc (zinc) dipped. During the time spent zinc bath due to the high temperature (~ 450 ° C) to the base metal surface of zinc diffuses into the surface and combines therewith deposited. The more time you spend in the base metal zinc bath, the thicker zinc coating is formed on it. The galvanized steel structures resist corrosion for decades. Within a few years the recoverable surface protection for all steel construction.

It should be cleaned in accordance with the hot-dip galvanizing steel structures, just develop a clean metal surface coating proper. The galvanizing technology is applied to the zinc bath preparatory line before dipping down to the product in which the metal surface of tripping it came to oil and fat derivatives, as well as oxides (rust). The steel may have a surface contamination, which can not be released, these solutions, it must be mechanically removed most other methods. After preparing the base metal into the zinc bath where the required thickness depending spend time in, and after finishing to lift and cooling. The task of finishing the repair of defective areas and the removal of zinc splashes. During the galvanizing it often happens that a small proportion of the surface, tiny patches of improper coating. Those finishing in zinc spray repaired. During lifting of the product to the surface horganyfürdőből still liquid at the zinc, splashes are generated, they must be removed. After the hot dip galvanizing of zinc is still vulnerable to corrosion (white rust), it should be stored in a dry place for 3-4 days, otherwise the zinc coating is damaged (as well as due to foggy weather transport), fehérrozsdásodás starts. Reducing the waiting time, and in order to achieve better corrosion protection properties of zinc passivated passziválószerrel product.

Introduction

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