Abstract
The production of galvanized steel with zinc (GI) presents great challenges due to the high demand for surface quality required for its applications. The automotive segment is one of the largest consumers of this type of product. In hot dip galvanizing lines, the main defect that affects the surface quality of the coatings is the dragging of dross particles. Some studies have already been carried out to understand the formation of these particles inside the zinc bath, however little is known about the trajectory of these particles in relation to the pot layout. In this study, two types of layout were simulated to assess how this interferes with the flow of zinc. In the results it was verified that, the position of the heating inductor significantly modifies the trajectory of the dross particles.
Highlights
The hot dip galvanizing process is used to produce coatings on carbon steel substrates, to increase corrosion resistance
Some studies have been developed to understand the phenomena that involve the generation of dross particles inside the galvanizing pot, which are combinations between the Fe provided by the steel strip in process with the Al and Zn that make up the galvanizing bath
Some studies have investigated the effects of the inlet temperature of the steel strip in the zinc bath in the greater dross formation [1,2] proposing the control of this parameter and with good results in reducing the formation of dross particles, others were conducted with thermodynamic analyzes formation of these particles, finding
Summary
The hot dip galvanizing process is used to produce coatings on carbon steel substrates, to increase corrosion resistance. These zinc-coated carbon steel materials are intended for various sectors such as appliance manufacturing, construction and especially for the automotive industry. Some studies have been developed to understand the phenomena that involve the generation of dross particles inside the galvanizing pot, which are combinations between the Fe provided by the steel strip in process with the Al and Zn that make up the galvanizing bath. Some studies have investigated the effects of the inlet temperature of the steel strip in the zinc bath in the greater dross formation [1,2] proposing the control of this parameter and with good results in reducing the formation of dross particles, others were conducted with thermodynamic analyzes formation of these particles, finding
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