With the development of construction industry, galvanized railings are also widely used.
Zinc steel guardrails are widely used in schools, communities and highway guardrails. In 1983, galvanized guardrail accounted for 69% of the total surface treated steel. Because galvanized sheet has good corrosion resistance, decorative function and low cost compared with other coated sheets, it has been widely used in construction, vehicle manufacturing, furniture and household appliances industries.
The characteristic of galvanized railings is that they can not only effectively guarantee safety but also prolong service life, and strictly control cost. In addition, their anticorrosive performance is more outstanding. In addition, the design of the pull-out column can be more standardized and tidy, so that it can both protect and prolong service life. The function of beauty.
With the development of galvanized guardrail, the quality of products, uniformity of coatings, adhesion, corrosion resistance and coatability of coatings are improved. The zinc consumption can be reduced by 15% when the thickness of the coating is controlled by gas jet method compared with that by roller coating method. 15 hot dip galvanizing lines have been automatically controlled by computer. Because the standard electrode potential of Fe-Zn alloy layer is slightly higher than that of pure zinc, its electrochemical etching rate is slower than that of pure zinc layer, so its corrosion resistance is stronger than that of hot-dip galvanized steel sheet and its surface is rougher, so it has better coating performance. But the weaving speed is slow. Influencing yield. Moreover, the thickness of galvanized guardrail plate coating is relatively uniform and stable, the anode can be used continuously for 2-3 years, reducing the time of anode calibration, thus improving the utilization rate of equipment; zinc ion comes from galvanizing bath, which can be used after remelting with hot galvanized zinc slag, thus reducing the production cost. The galvanizing unit is controlled by one computer in successive annealing visual group.
Galvanized railings are made of antique bronze, antique and high-grade, with some decorative flowers and gun heads made of cast aluminium, which makes them more beautiful. The galvanized guardrail has complex design, advanced technology and elegant appearance, which can well meet the needs of customers. Therefore, it is very popular with the public. Thus, the market prospect of galvanized railings is bright.