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| 300KW/89 HIGH-FREQUENCY WELDED PIPE MILL LINE |
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| 1 General Introduction |
| 300KW/89 high-frcquency welded pipe production line is designed to produce welded pipes of 32 ~ 89mm in diameter and 1.2 ~ 4.5mm in wall thickness as well as square and rectangular pipes and formed sections of the corresponding size. Adopting the advantages of the equipment of the same kind at home and abroad, each element of the production line is designed with new ideas. The application of Mature high frequency induction heating technology and digital speed regulating unit guarantee that the production line works reliably and operates and main tams easily. Being the best inside the stare, the production line can also rival the advanced ones in the world. |
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| 2 Main Technical Specifications: |
| 2.1 Main Specifications: |
| 2.1.1 Pipe Diameter: 32~89mm |
| 2.1.2 Wall Thickness: 1.2 ~ 4.5mm |
| 2.1.3 Pipe Length: 4 ~ 8m |
| 2.1.4 To-length Accuracy: 0 ~ 6mm ( STD ) |
| 2.2 Raw Material Conditions: |
2.2.1 Low carbon steel and low alloy constructional steel
Mechanical Characteristics: ?b?520Mpa ?s?340Mpa |
| 2.2.2 Width of Strip: 45 ~ 150mm |
| 2.2.3 Thickness of strip: 1.2 ~ 4.5mm |
| 2.2.4 Inner Diameter of Coil: 480 ~ 600mm |
| 2.2.5 Outer Diameter of Coil: 900 ~ 1800mm |
| 2.2.6 Weigh of Coil: ?4 t |
| 2.3 Forming Speed: 20 ~ 80m/min |
| 2.4 Total Power: Approve 630KW |
| 2.5 Compressed Air: |
| 2.5.1 Flow Rate: 3m3 /min |
| 2.5.2 Pressure: 0.4 ~ 0.7MPa |
| 2.6 Water Supply: |
| 2.6.1 Circulation: 50t/h |
| 2.6.2 Pressure: 0.1 ~ 0.25MPa |
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| 3 Technological Process: |
| Uncoiling › Shearing and welding › Storing in accumulator › Forming › Welding › Cooling › Sizing › Flying saw cutting › Pipe collecting |
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| 4 ??????:(????) |
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| 5 Main Equipment and Main Data: |
| 5.1 High Frequency Inductire Heating Equipment: |
| H.F.Power |
200KW |
| Power |
400kVA |
| Resonance Frequency |
450KHz |
| Welding Thickness |
0.3 ~ 4.0mm |
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| 5.2 DC Driving System: |
| Output Current |
DC 300A |
| Output Voltage |
DC 0 ~ 500V |
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| 5.3 Uncoiled: |
| Firmer Diameter of Coil ,mm |
480~600 |
| Outer Diameter of Coil ,mm |
Max 1800 |
| Width of strip ,mm |
45~150 |
| Weight of Coil , max ,ton |
2 |
| Structure |
Double-mackerel |
| Drum Expansion |
Pneumatic |
| Swivel |
Manual |
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| 5.4 Semi-auto Shear Welder: |
| Shearing Width ,mm |
45~150 |
| Thickness of Strip ,mm |
0.6~3.25 |
| Welding Speed ,m/min |
0.59~0.9 |
| Moving of Torch |
DC Servo Motor |
| Clanking of Strip During Welding |
Manual |
| Shearing of Strip |
Pneumatic |
| Welding of Strip |
CO2 Shield Welder CO2 |
| Adjust of Up and Down |
Manual |
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| 5.5 Pinch Roll Assembly: |
| Feeding Speed ,max ,m/min |
300 |
| Up and Down of Pinch Roll |
Pneumatic |
| Material of Pinch Roll |
GCr15 |
| Height Guide Roll Assay |
1 |
| Entry Guide Roll Assay |
1 |
| Motor, kW |
11 |
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| 5.6 Cage Accumulator: |
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| 5.7 Forming and Sizing Mill: |
| Material |
Low carbon steel & low alloy steel
?b?500Mpa ?s?300Mpa |
| Diameter of Pipe ,mm |
16~50 |
| Thickness of Strip ,mm |
0.6~3.25(for round pipe) 0.6~2.5 (for square and rectangular pipe) |
| Width of Strip ,mm |
45~145 |
| Main Motor Power ,kW |
2×55 |
| Forming Mode |
Roll forming |
| Stand |
Portal style |
| Forming Speed, m/min |
Max 80 |
| Entry Guide |
1 |
| No. Of forming stands |
- horizontal 6
- vertical 6 |
| No. Of sizing stands |
- horizontal 6
- Vertical 6 |
| Seam Guide Roll Stand |
1 |
| Squeeze Roll Stand |
1 |
| Bead Scraper |
2 |
| Cooling Zone |
1 |
| Driving Roll Shaft Diameter, mm |
40Cr, ?55 |
| Side Roll Shaft Diameter, mm |
40Cr, ?35 |
| Turks Head |
4-roll style. 2 |
| Reduction Gear Box |
Bevel Gear Box |
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| 5.8 Flying Savvy : |
| Outer Diameter of Pipe, max, mm |
50 |
| Wall Thickness, max, mm |
3.5 |
| Cut-to-length, m |
4~8 |
| Cutting Motor Power, kW |
AC 15 |
| Traveling Motor Power, kW |
DC 15 |
| Cutting Accuracy, mm |
0~6 |
| Control |
Computer |
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| 5.9 Conveyer : |
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| 5.10 Table : |
| 5.11 Container : |
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