Cold galvanized wire refers to a process in which ordinary steel wire is treated by cold galvanized and a zinc layer is attached to its surface. Cold galvanized wire has the advantages of anti-corrosion and anti-wear, and is widely used in construction, machinery, automobile, electronics and other industries. The following will introduce the production process and flow of cold galvanized wire.
First, cold galvanized wire production process before treatment. Before galvanizing, a series of pre-treatment work on the steel wire is required, mainly including pickling, dissolution and brine or alkali washing.
1. Pickling treatment: the steel wire is soaked in an acidic solution to remove the oil stains and oxidation layers on the surface to ensure the adhesion of the zinc layer.
2. Dissolution treatment: Put the pickling steel wire into the dissolution tank, and dissolve the zinc powder with the bath liquid by heating, and the dissolved zinc liquid will adhere to the surface of the steel wire.
3. Salt water or alkali washing: In order to remove the residual acid in the dissolution tank, it is necessary to carry out salt water or alkali washing treatment on the steel wire to ensure that the surface of the steel wire is clean.
Two, cold galvanized wire production process of galvanized. Galvanizing is the core process in the production of cold galvanized wire, mainly by soaking the steel wire in a molten zinc solution to form a zinc layer on its surface.
1. Cleaning: Soak the pre-treated steel wire in detergent to remove surface impurities and dirt.
2. Preheating: Put the steel wire into the preheating furnace to increase its temperature in order to better react with the molten zinc liquid.
3. Galvanizing: the preheated steel wire is immersed in the molten zinc liquid, so that the surface is attached with a zinc layer. The control of galvanizing time and temperature has great influence on the quality of zinc layer.
4. Cooling: The galvanized steel wire needs to be cooled to reduce its temperature to room temperature.
Third, after the production process of cold galvanized wire treatment. Galvanized cold galvanized wire needs to go through a series of post-treatment processes to ensure its quality and performance.
1. Water washing: Clean the galvanized steel wire to remove the residual zinc liquid and impurities on the surface.
2. Drying: Dry the washed steel wire through hot air or other drying equipment to remove water.
3. Straightening and cutting: straighten and cut the cold galvanized wire after drying to reach the set size and length.
4. Packaging: The straightened and cut cold galvanized wire is packaged for transportation and storage.
Post time: 11-06-24
