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Galvanized sheet is not unfamiliar to everyone, but many owners do not know what is hot-plated, what is cold-rolled. In fact, the materials used for the two kinds of steel plates are the same, but they are changed into two different plates through different processing methods. The processing method of hot-dip galvanized steel plates is rather complicated, the use range is relatively wide, and the price is relatively higher. What are the types of hot dip galvanized steel ? What are the disadvantages of hot dip galvanized steel? The following is just a brief look at it with Xiaobian.
First, what are the types of hot-dip galvanized steel
1, plate
Hot-dip galvanized steel sheet can be divided into thin steel plate, thick steel plate and extra-thick steel plate according to different thicknesses. The role of steel plate is many, and it can be used as roof plate, packing box, car shell and various mechanical parts, and can also be bent and added. Large range of use.
2, coil
a, hot rolled plate is a piece of steel billet is heated, after processing through various links made of steel, hot rolled steel plate thickness are between 2mm to 13.5mm, the general price of the coil will be cheaper than the flat plate.
b. The raw materials of cold-rolled coils are the same as those of hot-rolled coils. The process of knowledge processing is not the same. Cold-rolled coils are cold-rolled, pickled, and cold-rolled. The scope of use of this type of steel plate is relatively small, and the price is lower than that of hot rolling.
c. The galvanized steel roll, as its name suggests, is coated with a layer of metallic zinc on the surface of the steel plate. The purpose of doing so is to prevent the surface of the steel plate from being corroded and to increase its service life. The galvanized coils can be divided into hot-dip galvanized steel sheets, alloyed galvanized steel sheets, electrogalvanized steel sheets, galvanized steel sheets for printing and painting, single-side and double-difference galvanized steel sheets, alloys, and composite plating, depending on the processing method. Zinc steel plate, colored galvanized steel plate, PVC laminated galvanized steel plate.
d, color coated coil is a galvanized coil for the substrate, repeatedly spray paint on the galvanized sheet, and then made through a complex processing program. This kind of coil has many colors, more commonly used yellow, blue, red and tooth white. Because the price is moderate, it is widely used as walls and roofs.
Second, what are the disadvantages of hot-dip galvanized steel
Hot-dip galvanized steel has many functions, but it also has its shortcomings, which are: easy to fall off, easy to scratch during construction, zinc particles, air knife marks, exposed steel, mechanical damage, wave, size, steel base properties Bad, roll printing, etc.
There will be many reasons for the galvanized layer falling off, including surface oxidation, too cold emulsified emulsion, too high dew point of protective gas, low hydrogen flow rate, and low oil evaporation, so it is necessary to observe galvanization in the purchase. The surface of the steel plate is complete.
Editor's summary: The above are the types of hot-dip galvanized steel that Xiaobian has shared for you. And what are the shortcomings of hot-dip galvanized steel, I hope to help you, if you want to learn more, decoration knowledge, you can pay attention to this site.
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