Galvanized coils and hot-dip galvanized sheets are mainly used in the fields of exterior building, interior building, civil use, doors and windows, furniture, machinery, electronics and household appliances. There are also cases that use this, but the hot-dip galvanized sheet does not emit radiation. The sheet on the back of air conditioners, refrigerators, microwave ovens and similar appliances is hot dip galvanized sheet.
The construction industry and light industry demand are the main markets for galvanized sheet, and their demand accounts for about 30% of galvanized sheet. Calculated according to the speed of national economic development and the previous consumption base, its demand in the first half of the year was about 4 million tons, equivalent to 180,000 tons of refined zinc consumption. From the perspective of the consumption of galvanized steel sheets in the home appliance industry, air conditioners are the main products that consume galvanized steel sheets.
The back panel of the indoor unit of the air conditioner, the back panel of the cabinet unit, the internal parts, and the outer casing and interior of the outdoor unit are all made of galvanized sheets. An average air conditioner consumes 22 kilograms of galvanized sheets. In addition, each washing machine consumes 8 kg of galvanized sheet, and each refrigerator consumes 3 kg of galvanized sheet.
Coated steel plate has light weight, beautiful appearance and good corrosion resistance, and can be directly processed. It provides a new type of raw material for the construction industry, shipbuilding industry, vehicle manufacturing industry, furniture industry, electrical industry, etc. Substitute wood, efficient construction, energy saving, pollution prevention and other good effects. Color-coated steel using galvanized steel as the substrate, except for zinc protection.
The organic coating on the zinc layer acts as a covering and isolation, which affects the use due to the effect of sulfur dioxide gas, salt and dust. Therefore, when designing, if the inclination of the roof is greater, it is less likely to accumulate dust and other dirt, and the service life will be longer; for those areas or parts that are not frequently washed by rainwater, they should be washed with water regularly.
