The appearance of galvanized sheet, what is the material of galvanized sheet?

In recent years, the production of galvanized sheet in China has increased year by year, and the import volume is also increasing year by year, and the growth rate is even higher than the increase in production; After deducting the double statistics of production, the consumption of galvanized sheet is about 5.27 million tons. After 1999, the import volume of galvanized sheet exceeded the production volume for the first time, and the self-sufficiency rate of domestic products was less than 50%, and there was a trend of decreasing year by year. (1) The current situation of galvanized sheet consumption.

In recent years, the increase in domestic galvanized sheet production is mainly due to the increase in the output of hot-dip galvanized sheet, from 1998 to 2002, the production volume of hot-dip galvanized sheet increased from 970,000 tons to 2.2 million tons; The import volume grew faster, from 370,000 tons in 98 to 1.56 million tons in 02; Apparent consumption increased from 1.32 million tonnes to 3.67 million tonnes. In 2002, the self-sufficiency rate of domestic products of hot-dip galvanized sheet was about 60%, and the domestic production and import volume of hot-dip galvanized sheet that year were ...

1) Surface condition: due to the different treatment methods in the coating process, the surface state of galvanized sheet is also different, such as ordinary zinc flower, fine zinc flower, flat zinc flower, zinc flower-free and phosphating surface. The German standard also specifies a surface grade.

2) The galvanized sheet should have a good appearance, and there should be no defects that are harmful to the use of the product, such as no plating, holes, cracks and scum, excessive plating thickness, abrasions, chromic acid dirt, white rust, etc. Foreign standards are not very clear about specific appearance defects. Specific defects should be specified in the contract at the time of ordering.

Galvanized sheet belongs to steel. The so-called galvanized sheet is a layer of zinc plated on the surface of the steel plate, which can prevent the steel plate from being corroded and play a protective role, thereby increasing its service life. According to different processing methods, it can be divided into hot-dip galvanized steel sheet, color galvanized steel sheet, electro-galvanized steel plate, single and double surface difference galvanized steel plate, alloyed galvanized steel plate, printed and coated galvanized steel plate, alloy galvanized steel plate, etc.

galvanized sheet effectGalvanized coil is a hot-rolled steel strip or cold-rolled steel strip as the substrate, through the continuous hot-dip galvanizing process and production, the product has strong corrosion resistance, surface resistance, conducive to deep processing, economical and practical, etc., used as the substrate of downstream products, construction industry: light steel keel, corrugated board, ventilation duct, floor load-bearing plate, mobile room, plant roof, house, municipal engineering fence, etc.

Household appliance industry, air conditioner, refrigerator, washing machine, microwave oven, water heater, computer case, solar energy and other household appliances shell and bottom plate, automotive industry: car body, outer panel, inner panel, bottom plate, car door, etc., furniture industry: wardrobe, table, bedside table, filing cabinet, filing cabinet, bookshelf and other types of furniture rail, other industries, storage and transportation, packaging, granary, chimney, bucket, rosin barrel, galvanized pipe, beer fermentation tank, power distribution cabinet, container, fertilizer box, etc.

<> steel plates. Galvanized coil is actually a kind of steel plate produced by continuously impregnating hot steel strip or cold-rolled steel strip with hot zinc. If the cross-cutting method is used to cut out a rectangular flat plate shape to supply, this is called hot-dip galvanized sheet.

If it is supplied by coiling, it is called hot-dip galvanized coil. These galvanized steel sheets are mainly used in construction, home appliances, transportation, automobile world rolling car beauty and other fields. It has very good corrosion resistance, in addition to its good quality, it is also convenient to bring back to the baggage for deep processing and utilization.