New Generation Steel Strip Continuous Annealing

Hot Dip Galvanizing (Aluminizing) Technology --- JJRS-Sendzimir

Strip thermal treatment section
1. Strip tensioning regulator
2. Scale-free heating furnace - The strip is heated up to 450–470°C to burn the grease residues; this is followed by metal annealing to 730–950°C, depending on the material.
Strip jet cooling unit
1. The unit operates under staged accelerated cooling principle and includes the following:
2. Cooling chamber body with lining layer
3. Fan
4. A set of water-cooled tube-type heat exchangers
5. A system of nozzles for jet supply of shielding gas to the strip
6. Shielding gas automatic control system

Decay chamber
Operates at temperature about 500°C.
Strip galvanizing section
1. Inclined channel (section)
2. Filled with shielding gas and protects the heated strip (500°C) from air contact
3. Bottom immersed drum with stellen or ceramic journal bearings
4. Stabilizing roller with journal bearings
5. Correcting roller with journal bearings
6. Noncontact jet device for coating thickness control
7. Electromagnetic strip stabilizer built on air doctor (EM-stabilizer)
8. Bath heating system
9. Removable inducers
10. Gas burners
11. Immersion ceramic heaters

Technology Patent of " JJRS-Sendzimir"

The launch of " JJRS-Sendzimir" depends on a number of technology patents innovated by ourselves.

• No-oxidation nozzle burner tehnology
• Steel strip constant pressure thermal treatment furnace
• Nozzle arrangement mode (Flame gas orientation heating technology)
• Hot dip galvanizing technology
• Regenerative no-oxidation patent technology
• Low thermal value gas (Blast furnace gas) radiant tube furnace
• Energy saving radiant tube patent technology
• Process heat recovery patent technology
• Energy saving furnace roller
• Software copyright: galvanized steel strip line control software