• 1
GALVANIZED STEEL COIL
Number:
Up time:2022-04-02 14:53
Product description

Galvanized coil and galvanized sheet refers to dip steel sheet in a melted zinc tank to adhere a layer of zinc on its surface. It mainly uses the technology of continuous galvanizing process,which means put a roll of steel plate continuously into the melting zinc plating tank to make and alloy galvanized steel plate. This steel plate is also made by the technology of hot dip, which is heated to about 500℃immediately after the trough , so that it generates an alloy film of zinc and iron. This galvanized coil has good coating adhesion and weld-ability.

Zinc layer of the product is from Z20g to Z275g, thickness is 0.11-0.6mm, width is up to 1250MM


介紹插圖-英文.png


Galvanizing is a cost-effective method of rust prevention that is often used, and about half of zinc production is used in this process. Galvanized steel plate is used to prevent the surface corrosion of steel plate so that to prolong its service life. Coated with a layer of metal zinc on the surface of the steel plate is referred to as galvanized plate. 


According to the production and processing methods, it can be divided into the following categories:

1.Hot dip galvanized steel sheet. This kind of steel sheet is dipped into a melted zinc tank to adhere a layer of zinc on its surface. It mainly uses the technology of continuous galvanizing process,which means put a roll of steel plate continuously into the melting zinc plating tank to make galvanized steel plate.

2.Alloy galvanized steel sheet. This kind of steel sheet is also made by the technology of hot dip, but heated to about 500℃immediately after the trough , so that it generates an alloy film of zinc and iron. This kind of galvanized coil has good coating adhesion and weld-ability.

3.Galvanized steel sheet. This kind of galvanized steel sheet is made by electroplating and has good machinability. But the coating is thin so that the corrosion resistance is not as good as hot dip galvanized sheet;

4.Single-sided galvanized steel plate and double-sided difference galvanized steel plate. Single-sided galvanized steel plate refers to the product with only one side of galvanized. In welding, coating, rust treatment, processing and other aspects, it has better adaptability than double-sided galvanized sheet. In order to overcome the shortcomings of single galvanized sheet, another side of the galvanized sheet is also coated with a thin layer of zinc, that is, double-sided difference galvanized sheet;

Advantages of galvanized sheet: strong corrosion resistance. It can prevent the surface of steel plate from being corroded to prolong its service life. And galvanized sheet looks very clean, more beautiful, which increases its decorative effect. Its strong surface antioxidant capacity enhances rust resistance ability


Galvanized sheet is mainly used in air conditioning, refrigerator and other industries. For example, the rear panel of the indoor unit of the air conditioner, the rear panel of the cabinet, and the indoor chassis are all made of galvanized sheet. these places will encounter rain, sun, hot gas corrosion and other strong oxidation conditions. Therefore, galvanized sheet is often chosen in those working environments.


Galvanized sheet is mainly used in construction, household appliances, automobile and metallurgy industries. Among them, in the construction industry,it is mainly used for roof, doors and Windows, rolling curtain doors, ceiling keel and so on.;In the household appliances, it is used for refrigerators, washing machines and so on; In the automobile industry, it is mainly used for body shell, chassis, doors, fuel tank, fender and so on. ; In the metallurgical industry, it is mainly used for steel window billet, color coated plate substrate and so on.

Zinc layer is from 20g to 275g.The higher the zinc layer, the longer service life and greater corrosion resistance.

Coating definition:

1.Normal spangle coating. In the normal solidification process of zinc layer, zinc grains grow freely and form a layer with obvious zinc flower morphology .

2.Minimized spangle coating. In the solidification process of zinc layer, zinc grains are artificially limited and form a layer with as small zinc flower morphology as possible.

3.Spangle-free coating.By adjusting the chemical composition of the bath, the coating has uniform surface without visible zinc flower morphology.

4.Zinc-iron alloy coating. The whole coating zinc form a zinc and iron alloy layer after the heating treatment of the steel strip through the zinc bath. The appearance of the coating is dark gray without metallic luster.  It is easy to powder in the process of violent molding, so it is suitable for coating that can be directly painted without further treatment besides general cleaning.  

5.Differential coating. For both sides of galvanized steel sheet, different zinc layer weight coating is required.

6.Skin pass. Skin pass is a cold rolling processing of galvanized steel with a minimal amount of deformation for one or more of the following purposes:

Improve the surface appearance of galvanized steel plate to make it suitable for decorative coating; The finished product can not see the processing of the slip line (Luders line) or the phenomenon of folding temporarily reduced to minimum


自拍偷自拍亚洲精品情侣| 午夜毛片不卡免费观看视频| 特黄熟妇丰满人妻无码| 人妻免费久久久久久久了| 99久热RE在线精品99 6热视频| 亚洲人成在线观看无码精品| 中国老熟女重囗味hdxx| 无卡无码无免费毛片| 国产在线aaa片一区二区99| 亚洲av男人的天堂在线观看 | 欧美日韩国产在线人成 | 亚洲中文字幕无码中文| 免费观看的无遮挡AV| 国产大屁股视频免费区| 欧洲亚洲国产精华液| 日本伊人精品一区二区三区| 国产午夜理论片不卡| 国产真人无遮挡作爱免费视频| 欧美13一14娇小性| 亚洲国产理论片在线播放 | 欧美日韩精品久久久免费观看| 久久精品国产亚洲AV无码娇色| 国产欠欠欠18一区二区| 夜夜偷天天爽夜夜爱| 在线观看成人无码中文av天堂| 亚洲国产精品第一区二区| 无码国产伦一区二区三区视频 | 8x国产精品视频| 中文字幕乱码人妻一区二区三区| 久久久久亚洲av片无码下载蜜桃| 久久精品国产亚洲av无码偷窥| 美女啪啪网站又黄又免费| 久久丫精品国产亚洲av| 伊人久久久精品区aaa片| 欧美国产激情18| 欧洲美熟女乱又伦| 蜜臀久久99精品久久久久久| av无码天堂一区二区三区App| 四虎无码视频| 杨幂久久第一页精品| 久久久久人妻精品一区|