Hot roll is hot rolled sheet, it is slab (mainly connected Casting billet) is the raw material, after heating by the roughing Mill Group and finishing mill made of strip. The hot strip from the finishing mill is cooled to a set temperature through laminar flow, and the coiling machine rolls gang with a coil. After cooling the steel strip, according to the different needs of users, through different finishing line (leveling, straightening, cutting or slitting, inspection, weighing, packaging and marking, etc.) processing to become steel plate, flat roll and slitting steel strip products.Steel Coil
Cold rolled coils are often used in steel industry, which is different from hot rolled coils. It refers to the steel strip which is made of a certain thickness and rolled into whole volume by roll rolling machine at room temperature. Compared with hot rolling coil, the surface of cold rolled coil is bright, high finish, but it will produce more internal stress, often annealed after cold rolling.Steel Coil
Galvanized Coil, galvanized refers to the surface of metal, alloy or other materials coated with a layer of zinc to play the role of beauty, rust and other surface treatment technology. Now the main method is hot dip galvanizing. Hot-Dip Galvanized sheet production process mainly include: the original plate preparation → plating pretreatment → hot Dip plating → After the treatment → finished inspection. According to the habit is often based on the pretreatment method.
Aluminum-Zinc coil, aluminum-zinc galvanized steel plate is composed of aluminum and zinc alloy structure, from 55% aluminum, 43% zinc and 2% silicon at 600 ℃ high temperature solidification and composition, its entire structure from aluminum-iron-silicon-zinc, forming a dense four-yuan crystals of an alloy. Galvanized steel Plate has a number of excellent characteristics: strong corrosion resistance, is a pure galvanized plate 3 times times; the surface has a beautiful zinc flower, can be used as a construction house outside the board. Its characteristics are: corrosion resistance ("Galvanized steel Coil" corrosion resistance is mainly due to aluminum, aluminum protection function. When zinc is worn, aluminum forms a dense layer of alumina that prevents corrosion-resistant substances from further corrosion inside. ), heat resistance (aluminum-zinc alloy steel plate with good heat resistance, can withstand the high temperature of more than 300 degrees Celsius, and aluminum plate with high temperature oxidation resistance is very similar), thermal reflectance (aluminum galvanized steel plate thermal reflectance is very high, galvanized steel plate is twice times, people often use it to make insulation material), economic (because the density of 55%al-zn than the density of zinc, so in the same weight and gold-plated layer thickness of the same case, galvanized steel plate than the size of the plating plate larger than 3%).Steel Coil
