Continuous Galvanizing Line 1.0~1.5mm*650mm 100,000TPY ( steel metal)

The process comprises a number of technically-advanced intermediate stages, e.g. degreasing, pickling and rinsing, which result in the achievement of a clean surface, ready to be immersed in a zinc bath. The final product of the HDG process is a multi-layered protective coat. Its innermost layer, the so-called Gamma layer, is formed by Fe and Zn compounds, where iron makes for 25%. The thickness of this layer is approx. 1 μm. Going towards the surface, the second layer, Delta, contains up to 10% of iron. The iron content in the third subsequent layer, Zeta, is even smaller. At the surface, the external coat of steel is nearly completely composed of pure zinc.

The minimum required thickness of zinc coating is worked out on the basis of the following data:
thickness of the steel item to be galvanized,
time of immersion in the zinc bath,
silicon and phosphorus content in the steel.
A properly applied zinc coat should hold for 10 to 100 years, depending on its thickness and the influence of mechanical erosion and aggressive environments.
Hot-dip galvanization is a cost-effective and environmentally friendly method of corrosion protection of steel, which provides high performance anticorrosive coats that are pleasing to the eye.

Consolidating the advantages of the traditional technology " Improved Sendzimir" and "United States Steel Corp", and integrating the independently researched and developed regenerative nozzle and waste heat efficient recycling technology, the technology R&D team of Beijing JJRS Technology Development Co.,Ltd, launched a new generation of steel strip continuous annealing hot dip galvanizing process contrl technology based its latest self-designed process control technology by in-depth study and analysis, which is named as " JJRS-Sendzimir".

Research & Development Objective of " JJRS-Sendzimir"

Genuine heat regenerative non-oxidation heating

Waste heat "extreme recycling"

No end in energy conservation and environmental protection

Two Core of " JJRS-Sendzimir"

Compared with the traditional technology, " JJRS-Sendzimir" method can greatly increase productivity. For its:

• High temperature flame on-time heating technology: In the heating furnace, steel strips from the normal temperature of 20 C can be heated directly to the re-crystallization temperature zone of strip steel in the non-oxidation atmosphere.
• Zero heat preservation and energy saving concept: On the premise of guaranteeing the annealing and restoration effects, heat energy can be reasonably allocated, steel strip heating is conducted as far as possible in the flame heating section of high thermal efficiency to shorten the length of reduction section, so as to improve productivity as much as possible and reduce the manufacturing and operation cost of spare parts.

Technical Data of continuous hot dip galvanizing line(CGL):