Welcome to Shandong Zhishang Steel Co., Ltd.
Welcome to Shandong Zhishang Steel Co., Ltd.
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In the process of welding, cracks, pores or softened structures are easy to appear inside the molten core. Especially in the spot welding process of galvanized steel plate, if the welding specification is not reasonable, it may lead to some problems. First, some zinc and zinc-iron alloys may remain in the joint. These residues may form fine cracks or pores in the process of crystallization. This is because the high temperature during the welding process will cause physical or chemical reactions between zinc and zinc-iron alloys, which changes the physical properties of the molten core, making it more prone to cracks or pores. Secondly, if the residual zinc is more, it may also form softened tissue. This is because zinc reacts with the steel matrix during the welding process to form a zinc-iron alloy, which is lower in hardness and strength than steel, so it can lead to the softening of the molten core.
Hot-dip galvanized channel steel, also known as hot-dip zinc channel steel and hot-dip galvanized channel steel, is an effective way to prevent metal corrosion. It is to immerse the channel steel after rust removal into the melting zinc liquid about 440~460℃, so that the surface of the channel steel is attached to the zinc layer, so as to play the purpose of anti-corrosion.
The main use of galvanizing is to prevent metal surface corrosion and oxidation.
Mainly used in the following fields:
Construction: Galvanized steel is widely used in the construction industry, such as building frames, roofs and walls. This is because galvanized steel has corrosion resistance and durability, which can extend the service life of the building.
Automotive industry: Galvanized steel is widely used in the automotive manufacturing industry, such as the manufacture of body and chassis. This is because galvanized steel can prevent the corrosion and oxidation of metal parts of the car, thereby extending the service life of the car.
Electrical industry: Cable tubes and cable jackets are usually made of galvanized steel pipes. This is because galvanized steel pipe has corrosion resistance and durability, and can be used in different environments for a long time.
Agriculture and aquaculture: Galvanized steel wire mesh and galvanized steel pipe are widely used in the agriculture and aquaculture industry, such as for fences, poultry houses and livestock houses. This is because galvanized steel wire mesh and galvanized steel pipe can prevent rust and corrosion, thereby extending the service life.
Machinery industry: Galvanized steel plates and galvanized steel pipes are widely used in the machinery manufacturing industry, such as the manufacture of mechanical parts and pipes. This is because galvanized steel plates and galvanized steel pipes have good anti-corrosion properties, which can extend the service life of mechanical equipment.
