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What is corrugated board

What is corrugated board

Corrugated board, also known as pressure plate, is the use of color coated steel plate, galvanized sheet and other metal plate by rolling cold bending into a variety of wave type of pressure plate. Corrugated board is suitable for industrial and civil buildings, warehouses, special buildings, large-span steel structure housing roof, wall and interior and exterior wall decoration. It has the characteristics of light weight, high strength, rich color, convenient construction, earthquake resistance, fire prevention, rain prevention, long life, maintenance free and so on.

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The difference between hot galvanized sheet and galvanized sheet

The difference between hot galvanized sheet and galvanized sheet

Hot galvanized sheet is hot-rolled galvanized sheet, 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, the surface quality is better, and the process is more complicated. The price is higher.

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Maximum allowable storage time of hot-dip galvanized sheet

Maximum allowable storage time of hot-dip galvanized sheet

If oiled, the packaging and storage are in place, and some products can be stored for more than one year, but it is better to use them for three months. If they are not oiled, the time will be shorter to avoid oxidation caused by excessive storage. The specific storage time should be in accordance with the corresponding implementation standards for specific products.

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Causes of White Rust and Black Spot on Hot Galvanized Sheet

Causes of White Rust and Black Spot on Hot Galvanized Sheet

The causes of white rust and black spots are: black spots are formed by further oxidation of white rust. The main causes of white rust are: (1) Poor passivation, insufficient or uneven passivation film thickness; (2) The surface is not coated with oil or the residual moisture on the surface of the strip steel;

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The difference between cold rolled plate and hot rolled plate

The difference between cold rolled plate and hot rolled plate

Hot rolling Is the slab (mainly for continuous casting billet) as raw material, after heating by the roughing mill group and finishing mill group made of strip steel. The hot steel strip from the last mill of finish rolling is cooled to a set temperature through laminar flow, and is rolled into a steel strip roll by a coiler. The cooled steel strip roll is processed into steel plate, flat roll and slitting steel strip products through different finishing lines (leveling, straightening, cross-cutting or slitting, inspection, weighing, packaging and marking, etc.) according to different needs of users. To put it simply, a billet is heated (that is, the red hot steel block on TV) after several rounds of rolling, then trimming and correcting into a steel plate. This is called hot rolling.

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Application range of pickling roll

Application range of pickling roll

The hot-rolled pickling oil-coated plate in the automobile industry is a new steel required by the automobile industry. Its good surface quality, thickness tolerance and processing performance can replace the body covering parts and auto parts produced by cold-rolled plate in the past, thus reducing the cost of raw materials by about 10%. With the development of economy, the production of automobiles has also increased significantly, and the use of plates has continued to increase. The original design of parts and components of many models in the domestic automobile industry requires the use of hot-rolled pickling plates,

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Shandong Dongxin Metal Material Co., Ltd

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