Basic concepts:
Galvanized steel plate is to prevent the surface from corrosion, extending its life in the surface coated with a layer of steel sheet metal zinc, the zinc coated thin such as galvanized steel plate,cold rolled steel strip,e.g.
Classification and Uses
According to production and processing methods can be divided into the following categories:
(1) hot-dip galvanized steel sheet. Immersion will be thin plate of a melt-down zinc bath, adhesion to the surface of the thin layer of zinc plate. Zinc is mainly used for the production process, that is, to the plate into volumes for a melt-down dip zinc plating tank made of galvanized steel;
(2) of zinc alloy steel plate. This plate is manufactured by hot-dip method, but in the slot immediately after heating it to about 500 ° C to the formation of zinc and iron alloy capsule. This galvanized sheet has a good coating of a sexual and welding;
(3) electric galvanized steel sheet. This manufacturing method using electroplating galvanized steel has excellent machinability. But the coating thinner than the corrosion resistance of hot-dip galvanized sheet;
(4) single-sided and double-sided plated poor galvanized steel sheet. One-sided galvanized steel plate, that is, only in a galvanized products. In welding, coating, anti-rust treatment, processing, double-sided galvanized sheet is better than the adaptability. To overcome one side of the shortcomings coated zinc, have to paint a thin layer in another zinc galvanized sheet, that is double-sided poor galvanized sheet;
(5) alloys, composites galvanized steel sheet. It is with zinc and other metals such as lead, zinc alloys and composites made of steel into plating. This plate is not only a superior anti-corrosion properties, and good coating properties.
In addition to these five, there are color galvanized steel, galvanized steel coating printing, such as galvanized steel sheet laminated PVC. But at present the most common hot dip galvanized sheet. By end-use galvanized steel sheet can be divided into general use, with the roof construction with lateral plate, with the structure, with tile ridge plate, and deep-drawing by using galvanized steel plate, etc..
The main production plants and import-producing countries:
Domestic main production plants: Wuhan, Angang, Baoshan and Guangdong; Foreign state-owned major producers Japan, Germany, Russia, France, etc..
Appearance
(1) surface state: galvanized sheet plating process because different approach, different state of the surface, such as ordinary zinc flowers, fine zinc flower formation of zinc flowers, no flowers, as well as zinc phosphide treated surface. Germany also provides for a standard surface-level.
(2) galvanized sheet should have good appearance, there must be no use of harmful products on the shortcomings, such as no plating, openings, as well as drosses rupture, over plating thickness, abrasions, chromic acid dirt, such as white rust. Foreign appearance standards on specific provisions of defects are not very clear. When ordering some specific flaws in the contract should be specified.
The galvanized sheet of the major standards abroad
(1) product standards: JIS G3302-94 galvanized steel; JIS G3312-94 coloring galvanized iron sheets;
JIS G3313-90 (96), galvanized steel sheet and strip; Hot-dip galvanized steel sheet thin the general requirements; ASTMA526-90 business-class thin hot galvanized plate;
ASTMA 527-90 (75) occlusion molding thin-hot galvanized plate; ASTMA528-90 deep-grade fever Galvanized Steel Sheet;
Wall surface and thin with hot-dip galvanized steel sheet; ASTMA444-89 ditches thin with hot galvanized plate; ASTMA446-9 3-level structure of thin hot galvanized plate; ASTMA599-92 cold-rolled thin plate, galvanized
ASTMA642-90 special hot galvanized sheet steel deoxidation deep grade; Γ OCT7118-78 Galvanized Steel Sheet;
DINEN10142-91 Part 1 hot galvanized low carbon steel strip and plate; DINEN1012-92 Part 2 thin hot galvanized plate.
(2) Test Method Standards: JIS H0401-83 hot-dip galvanized test method; DIN50952-69 hot-dip galvanized test method.
Galvanized steel plate is to prevent the surface from corrosion, extending its life in the surface coated with a layer of steel sheet metal zinc, the zinc coated thin such as galvanized steel plate,cold rolled steel strip,e.g.
Classification and Uses
According to production and processing methods can be divided into the following categories:
(1) hot-dip galvanized steel sheet. Immersion will be thin plate of a melt-down zinc bath, adhesion to the surface of the thin layer of zinc plate. Zinc is mainly used for the production process, that is, to the plate into volumes for a melt-down dip zinc plating tank made of galvanized steel;
(2) of zinc alloy steel plate. This plate is manufactured by hot-dip method, but in the slot immediately after heating it to about 500 ° C to the formation of zinc and iron alloy capsule. This galvanized sheet has a good coating of a sexual and welding;
(3) electric galvanized steel sheet. This manufacturing method using electroplating galvanized steel has excellent machinability. But the coating thinner than the corrosion resistance of hot-dip galvanized sheet;
(4) single-sided and double-sided plated poor galvanized steel sheet. One-sided galvanized steel plate, that is, only in a galvanized products. In welding, coating, anti-rust treatment, processing, double-sided galvanized sheet is better than the adaptability. To overcome one side of the shortcomings coated zinc, have to paint a thin layer in another zinc galvanized sheet, that is double-sided poor galvanized sheet;
(5) alloys, composites galvanized steel sheet. It is with zinc and other metals such as lead, zinc alloys and composites made of steel into plating. This plate is not only a superior anti-corrosion properties, and good coating properties.
In addition to these five, there are color galvanized steel, galvanized steel coating printing, such as galvanized steel sheet laminated PVC. But at present the most common hot dip galvanized sheet. By end-use galvanized steel sheet can be divided into general use, with the roof construction with lateral plate, with the structure, with tile ridge plate, and deep-drawing by using galvanized steel plate, etc..
The main production plants and import-producing countries:
Domestic main production plants: Wuhan, Angang, Baoshan and Guangdong; Foreign state-owned major producers Japan, Germany, Russia, France, etc..
Appearance
(1) surface state: galvanized sheet plating process because different approach, different state of the surface, such as ordinary zinc flowers, fine zinc flower formation of zinc flowers, no flowers, as well as zinc phosphide treated surface. Germany also provides for a standard surface-level.
(2) galvanized sheet should have good appearance, there must be no use of harmful products on the shortcomings, such as no plating, openings, as well as drosses rupture, over plating thickness, abrasions, chromic acid dirt, such as white rust. Foreign appearance standards on specific provisions of defects are not very clear. When ordering some specific flaws in the contract should be specified.
The galvanized sheet of the major standards abroad
(1) product standards: JIS G3302-94 galvanized steel; JIS G3312-94 coloring galvanized iron sheets;
JIS G3313-90 (96), galvanized steel sheet and strip; Hot-dip galvanized steel sheet thin the general requirements; ASTMA526-90 business-class thin hot galvanized plate;
ASTMA 527-90 (75) occlusion molding thin-hot galvanized plate; ASTMA528-90 deep-grade fever Galvanized Steel Sheet;
Wall surface and thin with hot-dip galvanized steel sheet; ASTMA444-89 ditches thin with hot galvanized plate; ASTMA446-9 3-level structure of thin hot galvanized plate; ASTMA599-92 cold-rolled thin plate, galvanized
ASTMA642-90 special hot galvanized sheet steel deoxidation deep grade; Γ OCT7118-78 Galvanized Steel Sheet;
DINEN10142-91 Part 1 hot galvanized low carbon steel strip and plate; DINEN1012-92 Part 2 thin hot galvanized plate.
(2) Test Method Standards: JIS H0401-83 hot-dip galvanized test method; DIN50952-69 hot-dip galvanized test method.
