Active Member
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[China]
Address: B-613，Tempo Business Building , Yangshe Town, Zhangjiagang City, Jiangsu Province, China 215600
Contact name:Yvonne Ding
Jiangsu Co-effort Mechanical&Electrical Technology Co., Ltd |
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High Precision ERW Round Tube Carbon Steel Galvanized Pipe Welded Making Machine
Summary of Pipe Welding Machine
The accurately sized strips, precut from high quality hot-rolled or cold-rolled steel coil strips in slitting machine, are fed into the tube mill, gradually formed to a round profile with open seam along its length in the forming mill.
A high-frequency induction welding technique is adopted to seam edge heat and longitudinal seam weld, form a strong continuous seam joint.
The strip is continuously seam welded while round in shape. The welded pipe passes through and external bead scarfing and cooling, further sizing and shaping to round or square or rectangular section with specified tolerance in the sizing mill.
After that, the endless welded pipe will be on-stream cut to desired and measured lengths.
Finished tubes may be of round, square or rectangular shape.
Main Technical Performance
| Raw material | Carbon steel coil, galvanized steel coil, other hot or cold rolled steel coil. | |
| Pipe size | Width of raw material | 50 - 200mm |
| Round pipe outside diameter | Φ12.7 - Φ50.8mm | |
| Round pipe thickness | 0.6 - 2.5mm | |
| Square and rectangular pipe size | 2cm*2cm 4cm*4cm | |
| Square and rectangular pipe thickness | 0.5 - 2.0mm | |
| High frequency induction welder power | 200Kw | |
| Production speed | 30~120m/min | |
Process of High Frequency Pipe Welding Machine
{Steel strips} →→Auto Double-head un-coiler →→Strip-head Shearer & Auto TIG butt welder station →→Horizontal spiral accumulator group →→Forming M/C (Main driving unit + Flattening Entry unit + Breakdown section + Fin pass section + Sea m guide unit + High frequency induction welding system + Squeeze welding roller unit + Outside scarfing unit + Horizontal ironing stand) →→ Emulsion water Cooling section →→ Sizing M/C (Main driving unit + Sizing section + Speed testing unit + Turk straightener + Vertical pull-out stand) →→ NC flying saw under computer control →→ Run-out table
| NO. | Equipment | Introduction and main technical parameters | |||
| (1) |
Raw material uncoiler
| It’s used to support the steel strip roll and feed raw material for the production line. | |||
| 1) Structure mode | Double working position | ||||
| 2) Material tray outer diameter | Φ1600mm | ||||
| 3) Material tray inner diameter | Φ350 - Φ550mm | ||||
| 4) Central height | 1000mm | ||||
| 5) Weight bearing | 3000Kg | ||||
| (2) | Vertical material accumulator | It’s used to store and feed raw materials for forming machine so that the machine can work continuously. | |||
| 1) Max storage capacity | 200m | ||||
| 2) Power of driving motor | 4.0Kw | ||||
| 3) Max material feeding speed | 150m/min | ||||
(3)
| Forming and sizing machine | It’s the main equipment of the production line. Rollers can make steel strip form into pipes of variety shapes. It consists of forming part , welding part and sizing part. | |||
| 1) Forming part | Material feeding - Flattening - Feeding - 1 Horizontal roller - 1 Vertical roller - 2H - 2V - 3H - 3V - 4H - 4V - 5H - 5V - 6H - 6V - 7H - 7V | ||||
| 2) Welding part | Seam direction guiding -Extruding - Welding - Weld burr removing - Polishing - Water cooling | ||||
| 3) Sizing part | 1V - 1H - 2V - 2H - 3V - 3H - 4V - 4H - 5V - 5H - 6V - 6H- Speed measuring - Straightening | ||||
4) Driving method | 132Kw DC motors transmit power to gear boxes through reducer, then gear boxes transmit power to each horizontal roller through universal shafts. | ||||
5) Horizontal frame | Using gantry integral frame. Diameter of shaft is Φ55mm and the material is 40Cr. | ||||
| 6) Vertical frame | Adjusted through lead screw. Diameter of shaft is Φ35mm and material is 40Cr. | ||||
| (4) |
Hot cutting saw
| With the high precision STD control system and quick reaction of mechanical system, the cutting saw has reliable synchronization performance and high precision cutting length. | |||
| 1) Error in length | ±3mm | ||||
| 2) Power of cutting motor | 15Kw | ||||
| 3) Power of driving motor | 15Kw | ||||
| (5) | Automatic pipe unloading platform | It is an unloading platform of pipes cut by computerized saw. After the pipes falling down, workers can quickly check the quality and package them for preparation of transportation. | |||
| (6) | High frequency induction appliances | Using the current skin effect and proximity effect of high frequency to make both edges of the material rapidly heated to soldering temperature and then weld them together. Using computer to monitor the process can provide the machine with reliable quality. | |||
Foundation and advised Buyer’s necessary
| (1) | Workshop to place the whole pipe production line (more than 35×5m²). Space for high frequency appliances (more than 6×4m²). |
| (2) | Foundation of the production line to be constructed according to drawing. |
| (3) | Power supply: The main electric source to high frequency room and production line. Connecting wires from high frequency to the main machine. |
| (4) | Gas supply: one air-compressor. |
| (5) | Water supply: Water pool (25m³) and one water absorbing pumps. |
| (6) | One set of welder for connecting the head and tail of the material coil. |
| (7) | Several saw pieces of the computer cutting saw according to the specification. |
| (8) | Induction loop (Φ8×1 copper tube) and magnet bar according to pipe specification. |
Detailed Photos of Pipe Welding Machine
