Hangzhou Suntech Machinery Co, Ltd
Specialized In Wire&tube industrial equipment Succeed in Turn-Key Production Line
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30MNSI PC BAR CONCRETE BAR INDUCTION TEMPERING PRODUCTION LINE
I. Whole Work Flow:
Pay off → Wire arranging→ Mechanical descaling→ Horizontal type wire drawing and forming machine → Vertical and horizontal straightening → Three roll clamping and driving→ Cleaning unit →Heating No.1 →Heating No.2 →Heating No.3 → Heat Preservation → Cooling for Quenching → Induction Tempering → Heat Preservation →Cooling for Tempering →Three roll clamping and driving → Shearing → Wire separating → Wire take-up
| No. | Item | Specification |
| 1 | Raw material | 30MnSi,30Si2Mn and other alloy spring steels |
| 2 | Diameter | Φ 7.0-13.0mm |
| 3 | Working speed | 90-100m/min for type φ 7.1mm; 80-90m / min for type φ9.0mm; 65-70m/min for type φ 10.7mm; 40-45m/min for type φ 12.6mm. |
| 4 | Induction quenching temp. | ≤950ºC constant and adjustable |
| 5 | Induction tempering temp. | ≤450ºC constant and adjustable |
| 6 | Temp. control accuracy | ≤ ±5ºC |
| 7 | Take-up coil dimension | φ1800-φ2400mm |
| 8 | Pay-off | Horizontal rotating type pay off |
| 9 | Center elevation | 1000mm |
| 10 | Production method | Continuous production |
| 11 | Finished products | 1) Products keep consistence with "GBT5223.3-2005" and "JISG3137-1994" |
III. IGBT Induction heating power supply feature:
1. Main elements are Germany Infineon IGBT power module as well as Siemens PLC control.
2. Inverter circuit has function of Fixing angle/ Frequency tracking and control. When the operation condition is changing, the phase angle of inverter will not change, it has wide frequency suitable range
3. Frequency sweep method: High accuracy of phase locking frequency, small attack. Start success ratio is 100%. Power regulating range: 10%-100%