Fine extruded two-stage combined oxygen gun nozzle
With its excellent structural design and product performance, the combined nozzle has become an advanced equipment for converter and electric furnace steelmaking. It has the characteristics of reasonable structure, good water cooling effect, stable metallurgical performance and long service life. Fine extrusion molding two-stage combined oxygen gun nozzle is another combination nozzle product successfully developed by Jiangsu Boji on the basis of tracking the development of advanced manufacturing technology of oxygen gun nozzle for many years, analyzing the advantages and shortcomings of existing combined nozzle products, and has declared a national patent.
Product features
1. The bottom of the nozzle is made of oxygen-free copper material TU1, Cu content ≥ 99.97%, O content ≤ 20ppm, the use of large hydraulic press, design special mold, multi-step precision extrusion molding, greatly improve the thermal conductivity and deformation resistance of the nozzle, the thermal conductivity is more than 74% higher than that of the casting nozzle, the metallurgical performance of the nozzle is more stable, and the service life is longer.
2. The waterway is formed by precision extrusion, with high surface finish, low water flow resistance, design of upper and lower water guide cones, forced cooling of the center of the nozzle, and small deformation of the nozzle.
3. The outer pipe copper steel weld adopts argon arc welding, the imported welding wire is selected, the nozzle weld has high strength and fatigue resistance, and the use of the nozzle is high
Security.
4. The newly designed two-stage combined structure makes the nozzle structure more reasonable, and the nozzle weld is reduced by 50% compared with the forged combined nozzle, and the water leakage
The probability is greatly reduced, the strength of the nozzle is large, and the deformation during use is small.
Cast oxygen gun nozzle
According to the user's steelmaking process, the nozzle optimization design is suitable for efficient oxygen blowing demand, short blowing time and high efficiency. Vacuum casting, dense structure, high copper purity, good thermal conductivity, long life.
Auxiliary gun tip for converter temperature measurement and sampling
The outer surface is coated with nichrome alloy for longer service life.
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