The effect of galvanized desks and chairs and iron-zinc alloy products on aluminum

The aluminum in the zinc liquid of students' desks and chairs is participated as a favorable element, about the usual galvanized goods and iron-plated zinc alloy goods, aluminum is added as an alloy element to improve the function, and about aluminum plated zinc and galvanized aluminum products, aluminum becomes an important part of the coating, so the effect of aluminum is greater. The following only describes the impact of aluminum in galvanizing and iron-zinc alloy products.

(1) The effect of students' desks and chairs on the galvanizing process has two aspects: first, the reaction of aluminum to iron and zinc, after the steel strip enters the zinc liquid, aluminum first reacts with iron to form a thin film of iron and aluminum compounds, which inhibits the dispersion of iron, and then prevents the formation and thickening of the iron and zinc compound layer. The second is that aluminum is conducive to the floating removal of zinc slag, which is the same because aluminum is more vivid than iron, aluminum can replace the iron in zinc slag, form aluminum zinc compounds, and then float away.

(2) The effect of student desks and chairs on galvanized goods also has two aspects: first, aluminum improves the adhesion of the coating, and the iron-aluminum compound layer can play the effect of the medium, so that the steel base and the coating are closely combined together, and then the stamping function of the galvanized sheet can be improved, and the coating will not fall off during deformation. Second, aluminum can improve the uniformity of galvanized sheet, aluminum makes the coating affected by the reaction of iron and zinc become less, the thickness of the coating is uniform, and at the same time improve the appearance of galvanized goods.

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