Metallurgy turnkey Capacity 40t low consumption Three-Phase Ladle Refining Furnace
LF-40T three-phase ladle refining furnace uses overhead type, one dual-car furnace layout. It has the functions of electric arc heating, argon stirring, temperature measurement, sampling, fine tuning of alloy composition.
As the intermediate link of connecting converter and continuous casting equipment, this equipment plays an important role in improving the quality of steel water, expanding variety, and arranging the process of the workshop.
Processing steel: alloy steel, bearing steel, mould steel, carbon steel, etc.
Part of the steel grade chemical composition table.
| Steel grade | Chemical composition |
| C | Si | Mn | P | S | Cr | Mo | other |
| 45# | 0.42～0.50 | 0.17～0.37 | 0.50～0.80 | ≤0.035 | ≤0.035 | | | |
| 40 Cr | 0.37～0.44 | 0.17～0.37 | 0.50～0.80 | ≤0.035 | ≤0.035 | 0.80～1.10 | 0.15～0.25 | |
| Q235 | 0.14～0.22 | ≤0.30 | 0.30～0.65 | ≤0.045 | ≤0.050 | | | |
| 20 Mn Si | 0.16～0.22 | 0.60～0.80 | 1.00～1.30 | ≤0.035 | ≤0.035 | | | |
| 20 Cr Mo | 0.17～0.24 | 0.17～0.37 | 0.40～0.70 | ≤0.035 | ≤0.035 | 0.80～1.10 | 0.15～0.25 | |
| Cr12 MoV | 1.45～1.70 | ≤0.40 | ≤0.40 | | | 11.00～12.50 | 0.40～0.60 | V 0.15～0.30 |
| T7 | 0.65～0.74 | ≤0.35 | ≤0.40 | ≤0.035 | ≤0.030 | | | |
1. Production rhythm
| Average steel output of electric furnace | 40t |
| Tapping temperature of electric furnace | 1610～1630℃ |
1. LF furnace process and operation time
| No. | Project | Working procedure time(min) |
| 1 | Steel grade is hoisted into buggy ladle | Readiness time |
| 2 | Connect the argon line | Readiness time |
| 3 | Steel grade runs to the heating station | 1 |
| 4 | Package cover down | 0.5 |
| 5 | Measure temperature and add slag | 1 |
| 6 | Electrode goes down, electric heating | 8 |
| 7 | Sampling | 1 |
| 8 | Electrode goes down, electric heating | 7 |
| 9 | Add alloy material | 0.5 |
| 10 | Heating up to the target value | 8 |
| 11 | Wire feeding | 1 |
| 12 | Package cover rising | 0.5 |
| 13 | Steel ladle car is hoisted out the lifting position | 1 |
| 14 | Disconnect the argon line | Readiness time |
| 15 | Steel ladle car runs out the lifting position | Readiness time |
| 16 | Total time | 29.5 |
2. Equipment specification
2.1Mechanical equipment specification
LF-40t ladle refining furnace includes mechanical equipment and electrical equipment. Mechanical equipment is mainly composed of ladle, the ladle car, water cooling furnace cover, furnace cover hoisting mechanism and bridge, electrode lifting system, heavy current lines, hydraulic system, cooling water system, argon gas system, etc.
For more information, please feel free to contact us.
