Project Overview
Electric arc furnaces for steelmaking require fast melting, precise power control and clean steel practice. Shaanxi Chengda Industrial Furnace Manufacturing Co., Ltd. supplies arc furnaces and ladle refining furnaces for carbon steel, alloy steel and special alloy steel production, with installations in China and overseas.
Selected References
| Project | Unit | Product |
|---|---|---|
| Hangzhou Xiaoshan steel plant | 10 t electric arc furnace | Carbon and alloy steel |
| Taiwan special alloy steel plant | Special alloy EAF | Aerospace grade alloy steel |
| Pakistan Railways | 2 x 5 t electric arc furnace | Railway steel from scrap |
| Ladle refining furnace lines | Custom capacities | Steel refining and temperature homogenisation |
Design Features
- Furnace shell and roof - water-cooled panels with replaceable segments for short maintenance windows
- Electrode control - hydraulic regulation with automatic impedance control for stable arc and reduced flicker
- Ladle refining - ladle furnace with three-electrode heating, argon stirring and alloy trimming for composition control
- Off-gas route - fourth hole and canopy hood options to meet local emission requirements
Case Note: Pakistan 5-Ton EAF
Two 5-ton electric arc furnaces were supplied to Pakistan Railways for railway steel production from scrap. Chengda sent a technical team to Lahore for installation, cold and hot commissioning, operator training and production support. Over roughly one month the customer's team produced around twenty heats of steel, and the equipment passed the railway company's formal acceptance with high marks for ease of operation and safety.
Case Note: Taiwan Special Alloy EAF
For a Taiwanese special alloy steel producer serving aerospace customers, Chengda built an arc furnace with tight chemistry and temperature tolerances. The unit passed factory assembly and testing, export packing, site installation, no-load cold testing and hot commissioning in sequence, with stable performance recorded at every stage.
Conclusion
Whether the requirement is a 5-ton scrap furnace for railway steel or a special alloy furnace for aerospace grades, the engineering approach is the same: match electrical design to the charge mix, control the thermal load on water-cooled components, and hand over a furnace the customer's own team can operate.
Service Model
Chengda delivers each arc furnace with general arrangement drawings, electrical documentation, commissioning procedures, spare parts recommendations and on-site operator training, plus follow-up technical support through the equipment life cycle.
Why Operators Choose Chengda
Furnace uptime and electrode consumption decide the operating cost of any electric steelmaking shop. Chengda designs for balanced three-phase power, low reactance short networks and generous cooling margins, which together reduce electrode breakage and extend refractory and shell life.