Thick Steel Coil Galvan Sheet Big Flowers Manufacturer Tangshan Z275 Small Spangle Factory Galvanized Steel Coil GI

Galvanized coil, a thin steel sheet that is dipped in a bath of molten zinc to adhere a layer of zinc to its surface. lis mainly produced by the continuous galvamizing process, that is, the coiled steel plate is continuously dipped inthe galvanizing tank with molten zinc to make galvanized steel plate, alloyed galvanized steel plate. This kind ofsteel panel is also made by hot dip method, but it is heated to about 5009C immediately after coming out of thetank, so that it can form an alloy film of zinc and iron. This galvanized coil has good paint adhesion andweldability.

High-purity zinc layer (electro-galvanized layer) cannot form spangles. For example, add tin (<0 .5%), solidify at198°C; add cadmium, solidify at 264°C; add lead, solidify at 317°C; add antimony (<0.3%), solidify at 409°C; oruse steam flow or $O2 flow Spraying the surface of the galvanized layer can generate crystallization nuclei early and form large spangles.In fact, spangles are only of oramental value and have no actual use price. On the contrary, it is not good interms of anti-corrosion, and the surface appears uneven after painting. Now people ask to minimize spangle oreliminate spangle. In order to obtain small spangles, when galvanizing, when the zinc liquid is close to thesolidification temperature, water droplets with a diameter of less than 0.1mm are immediately sprayed on thesurface of the galvanized sheet to form small and uniform crystal nuclei, in order to obtain smooth zinc Flowers.and then temper roling with a reduction of less than 19. $mall spangles are suitable for painting, and smoothspangles are suitable for deep drawing.

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Thick Steel Coil Galvan Sheet Big Flowers Manufacturer Tangshan Z275 Small Spangle Factory Galvanized Steel Coil GI Images