Raw material | Hot or cold rolled carbon steel strip, galvanized steel strip. | |
Pipe size scope | Width of raw material | 20 - 100mm |
Round pipe outside diameter | Φ7 - Φ32mm (±0.05mm) | |
Round pipe thickness | 0.25 - 1.2mm | |
Square and other pipe thickness | 0.25 - 0.8mm | |
High frequency induction welder power | 60Kw | |
Production speed | 20 - 110m/min | |
Total electricity power of the production line | 120Kw |
NO. | EQUIPMENT | INTRODUCTION AND MAIN TECHNICAL PARAMETERSMANUFACTURER | |
(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 | Φ1500mm | ||
3) Material tray inner diameter | Φ350 - Φ550mm | ||
4) Central height | 900mm | ||
5) Weight bearing | 2000Kg | ||
(2) | Shearer and butt welder | It’s used to weld together the tail of former material roll and the head of next roll to ensure the continuous production of pipes. | |
1) Shearing | Responsible for shearing irregular parts of two material rolls and making preparation for welding. | ||
2) Welding | Responsible for connecting head and tail of two steel strip rolls. | ||
(3) | Vertical material accumulator | It’s used to store and feed raw materials for the forming machine so that the machine can work continuously. | |
1) Power of driving motor | 2.2Kw | ||
2) Max thickness of steel strip | 1.5mm | ||
3) Max width of steel strip | 200mm | ||
4) Max storage capacity | 150 - 300m | ||
5) Max material feeding speed | 150m/min | ||
(4) | 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 - Water cooling | ||
3) Sizing part | 1V - 1H - 2V - 2H - 3V - 3H - 4V - 4H - 5V - 5H - Speed measuring - Straightening | ||
4) Driving method | 30Kw DC motors transmit power to gear boxes through reducer, then gear boxes transmit power to each horizontal roller through universal shafts. | ||
5) Horizontal rollers | Using gantry type integral frame. Diameter of horizontal shaft is Φ40mm and the material is 40Cr. | ||
6) Vertical rollers | Adjusted through lead screw. Diameter of vertical shaft is Φ25mm and the material is 40Cr. | ||
(5) | Computer flying 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) Structure model | Controlled by computer program | ||
2) Max pipe diameter | Φ35mm | ||
3) Max pipe thickness | 1.5mm | ||
4) Error in length | ±3mm | ||
5) Power of cutting motor | 4Kw | ||
6) Power of driving motor | 11Kw | ||
7) Specification of saw piece | Φ50×Φ400×2.5mm | ||
8) Speed of saw piece | 87m/s | ||
(6) | Automatic unloading platform 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. | |
(7) | 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. | |
(8) | Rollers | Due to reasonable design, high precision CNC machine process and advanced heat treatment technology, the pipe forming process is smooth, stability and high efficient. |
• Power supply: The main electric source to high frequency room and production
• Water supply: Water pool (20m³) and one 2-inch self absorbing pumps (raising
• Several saw pieces of the computerized saw according to the specification.
• Gas supply: one air-compressor (1.0m³/min)
• One set of shearer and welder for connecting the head and tail of the material
• Induction loop(Φ8×1 copper pipe self made) and magnet bar according to pipe