The difference is that hot dip galvanizing is dipped in zinc solution melted by heating, the production speed is fast, and the coating is thick but not uniform. The color is dark, the consumption of zinc metal is more, the infiltration layer is formed with the base metal, the corrosion resistance is good, and the hot dip galvanizing can be maintained for decades in the outdoor environment. Cold galvanizing is in the plating tank through the current unidirectional zinc gradually plated on the metal surface, the production speed is slow, the coating is uniform, the thickness is thin, usually only 3-15 microns, the appearance is bright, poor corrosion resistance, generally a few months will rust.
Compared with electrogalvanizing, hot-dip galvanizing has lower production cost and less impact on the environment than electroplating. Because the resulting coating is thicker, hot-dip galvanizing has better protective properties than electric galvanizing, so it is an important protective coating for steel parts used in harsh working environments. Hot-dip galvanized products are widely used in chemical equipment, petroleum processing, ocean exploration, metal structure, power transmission, shipbuilding and other industries.
In the field of agriculture such as pesticide irrigation, heating and construction such as water and gas transmission, wire bushing, scaffolding, Bridges, highway guardrail, etc., has been widely used in recent years. The use of cold wire drawing in life has become increasingly obvious, its production and manufacturing process is very important, in the use of cold wire drawing products, trust that many people will have a deep preference for its tensile strength, which is also an important standard for choosing whether the function is good or bad.
Cold wire drawing is a kind of metal cold processing, which is the steel bar we often say. The process of cold drawing is not messy, the price of cold drawing depends on the quality of cold drawing at different levels, and the production of cold drawing is also a variety of different procedures. The main factor affecting the strength of cold wire drawing is raw materials, which are closely related to the raw materials, strength and wire diameter of raw materials, and the better the quality of cold wire drawing, the more messy the production process.
Post time: 20-12-23