Galvanized steel with thermal difference between plating and the plating process
by:Hongmei
2020-07-15
Galvanized steel with thermal difference between plating and the plating process.
Junan county juli packaging materials co. , LTD. , the production of galvanized steel belt.
The galvanized steel belt is divided into hot dipped and cold two plating technology.
A lot of friends do not know the difference between these two kinds of process.
Do the simple introduction below.
Hot dip galvanized steel strip hot-dip galvanizing, also known as zinc, iron and steel workpiece after oil removal, rust removal, no pollution, infiltration of surface, immediately immersed in zinc in advance will heat to melt the plating tank, the workpiece surface to form a layer of zinc plating method.
Cold galvanizing is the same after oil removal, in addition to lure, dirt, infiltrates the artifacts that hangs in special on the cathode in the plating bath, use zinc anode.
Connected to a dc power supply, zinc ions on the anode to cathode migration, parts plating a layer of the galvanized zinc layer method.
Hot dip galvanized coating thicker, generally is 30 -
60 micrometers, coating anticorrosion ability is higher.
Suitable for outdoor work steel parts, such as highway fence, power tower, large-sized fasteners such as relatively long-term rust 'rough' artifacts.
Early iron water pipe is galvanized.
Electric galvanized, surface smooth level off, but because the coating is thin, generally in 5 -
Within 30 microns, so the corrosion time is short.
Are used in indoor use the rust parts, such as the bottom of the chassis, panels, fasteners, small size, etc.