Tiếng Việt
The technology of dipping molten zinc to prevent metal corrosion for steel structures is quite popular in industrialized countries, but in our country, it was only until 1989 that it started to research and deploy on a large scale of production and use. was strongly promoted when implementing the construction of the North-South 500kV power transmission line to serve the cause of industrialization and modernization of the country. Corresponding materials and zinc dipping technology were implemented at the right time, meeting the requirements of anti-corrosion, improving the quality and life as well as safety of steel structure works and won the award. 3 VIFOTEC first year 1995.
Application of hot dip galvanizing technology
Subjects of application are mainly projects with large steel structures such as: Oil and gas drilling platforms, bridge girders, steel beams, high steel column structures, hydroelectric dam gate systems, sluice gates, ship hulls, etc.
Telecommunications field: a system of products in the postal – telecommunications – television industry such as: BTS station, antenna mast, antenna tower, ..
Lifespan of hot-dip coating
Expected service life is defined as the life until 5% surface rust appears. Actual use many years ago in some countries shows that with a thickness of 100 – 150 µm in general, spray coating has a lifespan of 15 – 20 years, if there is a supporting coating layer, it usually reaches 25 – 30 years.
The main advantage of hot-dip plating technology
- Simple technology easy to apply, does not require complicated equipment.
- This technology can be applied to zinc coating on steel parts with different shapes such as: steel bars (trees), steel pipes (straight or curved pipes can be embedded both inside and outside), steel wires and other materials. type of welded structure etc.
- The productivity of galvanizing is hundreds of times higher than that of electroplating.
- Chemicals, materials and equipment of the production line can be purchased domestically.
