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Hot dipped galvanized steel sheet

1.As the name suggests, galvanized steel sheet coil is a material coated with a layer of metallic zinc on the surface of the steel sheet. The main purpose of this is to prevent the surface of the steel sheet from being corroded and to increase its service life. According to different processing methods, galvanized steel sheets can be divided into hot-dip galvanized steel sheets, alloyed galvanized steel sheets, electro galvanized steel sheets, printing coated galvanized steel sheets, single-sided galvanized steel sheets and double-sided differential galvanized steel sheets, alloys, composite galvanized steel sheets, color galvanized steel sheets and PVC laminated galvanized steel sheets.
The color coated sheet roll is made of galvanized sheet roll as the base material, repeatedly sprayed with paint on the galvanized sheet, and then processed through complex processing procedures. There are many colors of this kind of plate roll. The commonly used ones are yellow, blue, red and tooth white. Because the price is relatively moderate, it is widely used as wall and roof.

galvanized sheet
2、 Main uses of hot-dip galvanized steel sheet
Hot dip galvanized sheet is mainly used in construction, home appliances, automobiles, machinery, electronics, light industry and other industries.
3、 What are the disadvantages of hot-dip galvanized steel plate

Hot dip galvanized steel plate has many functions, but it also has its shortcomings, mainly including: easy to fall off, easy to scratch during construction, zinc particles, air knife marks, steel exposure, mechanical damage, wavy edges, improper size, poor steel base performance, roll marks, etc.
There are many reasons for the falling off of the galvanized layer, including surface oxidation, dirty cold rolling emulsion, too high dew point of protective gas, low hydrogen flow and incomplete evaporation of grease, etc. Therefore, it is necessary to observe whether the surface of the galvanized steel plate is complete when purchasing.
4、 Difference between hot-dip galvanized sheet and electro galvanized sheet
Hot galvanized sheet is hot-rolled galvanized sheet, and cold galvanized sheet is cold-rolled galvanized sheet In terms of materials, the composition of the two galvanized sheets is basically similar The difference is that the cold galvanized sheet is thinner than the hot galvanized sheet, with better surface quality and more complex process The price is even higher
In terms of technology, the steel is sent from the casting slab to the hot rolling mill, and rolled into a certain thickness of plate, such as about 10mm thick. If the user has no higher requirements on the surface, thickness and mechanical strength of the plate, the finished product can be processed, such as galvanizing, which is sold directly, that is, hot plate If there are higher requirements for the plate, the hot-rolled plate will be sent to the cold rolling line for reprocessing. After pickling, annealing, re rolling and other processes, the cold-rolled plate with thinner, smooth surface and better mechanical properties will be obtained.


Post time: May-31-2022
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