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Shell Materials of High-Voltage Switchgear

Shell Materials
Shell Materials

1. Al-Zn coated plate: Al-Zn coated steel plate is composed of Al-Zn alloy structure, consisting of 55% aluminum, 43.4% zinc and 1.6% silicon solidified at 600°C. Its entire structure consists of aluminum – iron – silicon – zinc, forming a dense quadruple crystalline alloy coated steel plate. It is widely used in the skeleton, sealing plate and mounting beam of KYN28A-12, KYN61-40.5 and XGN15-12.

2.Galvanized steel plate

Hot-dip galvanized products are widely used in construction, home appliances, automobiles and ships, container manufacturing, and electromechanical industries, covering almost all areas of clothing, food, housing and transportation. The biggest advantage of coated steel is excellent corrosion resistance, decorative properties and good formability. Galvanized steel sheet is cheaper than aluminized zinc sheet, less used in high and low voltage cabinets, of which Schneider’s SM6 ring network cabinet is made of galvanized steel sheet, in the switchgear cabinet cover plate, cable bridges application more.

3. Stainless steel

Stainless steel stainless steel is the resistance of steel to erosion of the surrounding environment, stainless steel is a class of metal materials with good corrosion resistance; used in the manufacture of various mechanical equipment, parts, widely used in a variety of corrosive media environment, in electrical equipment, commonly used in inflatable cabinets, outdoor boxes, box transformers, etc.

4. Cold-rolled steel plate: cold plate is made of ordinary carbon structural steel hot-rolled steel strip, after further cold-rolled into a thickness of less than 4mm steel plate. Since it is rolled at room temperature, no iron oxide is produced, therefore, the cold plate has good surface quality and high dimensional accuracy, and with the addition of annealing treatment, its mechanical properties and process properties are better than those of hot-rolled thin steel plates. In electrical equipment, it is commonly used in outdoor boxes, box transformers and panels of high-voltage and low-voltage cabinets, three box products, high-voltage welded ring network cabinet shells, etc.

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Author: Jiatong028