This equipment is specially used for producing High Frequency Welded Pipe. It made by refined materials in high precision and equipped with fixed length cutting saw. The main machine includes forming, welding, sizing and straightening device. The composition of equipment is from decoiler to fixed length-cutting saw. Rolling speed can be adjusted correspondingly within suitable range of pipe diameter and wall thickness.
1.Characteristics:
No filler metal used, no effect on chemical composition of pipe;
Fast speed, ideally suitable for mass production.
2.Process of the Production Line:
Raw material (strip steel roll)- Material feeding - End cutting and butt welding (hand welding)- Strip storage cage - Material feeding and forming -High frequency welding - Removing outer burr - Cooling water jacket - Fix the diameter and straightening - Cut off with flying saw - Material unloading (Manually stow and bind up) - Inspection - Storehouse.
3.Technical parameter.
WB12 WB25 WB32 WB50
Diameter of welded tubes7-25mm8-32mm13-50mm20-60mm
Wall thickness of welded tubes 0.3-1.0mm 0.4-1.5mm 0.6-1.8mm 0.8-2.7mm
Speed of tube welding 90M/min 90M/min 90M/min 70M/min
Power of major motor 22KW 37KW 55KW 75KW
Power of high frequency welder60KW 60KW 100KW 100KW
Spiral submerged arc welded (SSAW) pipes are made from HR coil, where the coil is welded spirally to give a shape of pipe with the capacity to produce 270,000 tonnes of HSAW pipes. It manufactures high quality HSAW pipes conforming to international quality standards. One of the unique features of the two-mirror image HSAW mill is that it can manufacture pipes of same size or two different sizes simultaneously at a very high speed, thereby drastically reducing the delivery time.
Major applications: Spiral welded steel pipes are widely used in Oil, Natural Gas, Water and other flammable & nonflammable liquid conveyance and distribution pipelines, steel structures for construction and other general purposes by means of their wide size range.
Process flow
Loading coil,uncoiling,leveling,Shearing and butt welding,Rotary shearing,Edge milling,Delivering machine,Prebending and guide plate,Forming,Inside welding,Outside welding,Cutting,Pulling out,Χray testing,Hydraulic testing,End facing and chamfering,UT,Marking,Storing
The mill is used to manufacture of round pipe from cold-rolled and hot-rolled coil strip by means of unclosed tubular blank with its subsequent welding into tube, edge heating by means of solid state high-frequency welder, longitudinal seam welding in rolls of tube welding machine, cooling, further sizing or shaping and on-stream cutting of endless tube in measured lengths.
1.The High precision tube mill has some advantages as follow:
between level roller jumps 0.01,between frame and slide clearance â?¤0.02mm, frame vertical degree â?¤0.05, each frame parallel degree â?¤0.1mm
steel pipe diameter and roundness errorâ?¤0.08mm.
2.Product Process:
material(steel coil)â??uncoilerâ??shear and welderâ??horizontal(or cage) accumulatorâ??forming millâ??HF soild welderâ??sizing millâ??rounghly straightening(turkey head)â??cut off machineâ??run out table
3.The Basic Parameters:
stands of forming mill 7
stands of sizing mill 5
shaft material 40Cr
round pipe diameter 19-76mm
Round pipe thickness 1.5-3.0mm
square pipe size 15Ã?15-60Ã?60mm
square pipe thickness 1.5-2.0mm
we can design the machine according to the customer detail require.
This equipment is specially used for producing Carbon High Frequency Welded Pipe Mill. It made by refined materials in high precision and equipped with fixed length cutting saw. The main machine includes forming, welding, sizing and straightening device. The composition of equipment is from decoiler to fixed length-cutting saw. Rolling speed can be adjusted correspondingly within suitable range of pipe diameter and wall thickness.
1.process of the Production Line
Raw material (strip steel roll) Material feeding End cutting and butt welding (hand welding) Strip storage cage Material feeding and forming High frequency welding Removing outer burr Cooling water jacket Fix the diameter and straightening Cut off with flying saw Material unloading (Manually stow and bind up) Inspection Storehouse
2.Technical parameter
WB12DiameterΦ7-25mmWall thickness0.3-1.0mmSpeed90M/minPower of major motor22KWPower of high frequency welder60KW
WB25DiameterΦ8-32mmWall thickness0.4-1.5mmSpeed90M/minPower of major motor37KWPower of high frequency welder60KW
WB32DiameterΦ13-50mmWall thickness0.6-1.8mmSpeed90M/minPower of major motor55KWPower of high frequency welder100KW
WB50DiameterΦ20-60mmWall thickness0.8-2.7mmSpeed50M/minPower of major motor75KWPower of high frequency welder100KW
3.Main features:
Simple structure and beautiful appearance, because we adopt the shape-steel structure and process as a whole after welding. It has the ability of strong loading and stable operation when running the machine.The machine has features of low noise and high efficiency.
The mill is intended for manufacturing of round pipe of Φ10mm-Φ50mm with thickness of 0.5mmâ??2.5mm from cold-rolled and hot-rolled coil strip by means of unclosed tubular blank with its subsequent welding into tube, edge heating by means of solid state high-frequency welder, longitudinal seam welding in rolls of tube welding machine, cooling, further sizing or shaping and on-stream cutting of endless tube in measured lengths.
Finished product will be of round, square or rectangular pipe.
1. The technical flow of the production line
Steel Tapeâ??Double-head un-coilerâ??Strip-head Cutter and welderâ??Cage Loopâ??Forming sectionâ??High frequency induction welding unitâ??Flying saw under computer-controlâ??Run out table
2.Specification
Diameter: Ï?601,420mm,
Wall thickness: 3~120mm
Length: 3~24m.
Various materials: P91-92/T91-92, Q235, Q345, 45#, F52, A106B-C ,12CrMoV, etc.
3.Production Features:
The machine has smart thermostat system,in the pipe expanding process,the intermedia frequency power can heat the steel pipe to desired temperature and maintain constant,so as to eliminate the unsafe factors due to too high pressure in the processing;The machine is featured with energy saving and simple operational procedure,could reduce labor costs.Besides, the real-time display and recording are available in the touch screen to guarantee the trace ability of the date.
4.Applications
Steel Material:carbon steel, alloy steel, stainless steel,etc
Steel Tube Type:seamless steel tube, straight welded steel tube, rolled steel tube, etc
SSAW pipe mill is used to uncoil and level the steel coil, send the strip to forming machine by certain ganle ,then bend the pipe by certain angle based on three-roller forming principle , at last weld the spiral welding seam by the submergerd arc welder . the finished pipe could be used in petroleum &gas low presure fluid conveying system and construction piling pipes .
1.Technical Process :
Raw Steel Strip Coil Uncoil Head opening Flattening Centering Shear Butt Welding ??Centering Edge Sheared Centering ??Delivery ??Pre-bending ??Guide Plate ??Forming ??Internal and External Welding Cutting Off Steel Pipe Output and Sortout Deslagging Appearance test?? Repair welding Trimming Hydro-testing UT End facing & Beveling Finished product testing Put in storage.
2.Function :
For gas delivery: coal gas, steam and LPG;
For structural use: piling pipe, structural pipe in the field of bridge, dock, road, and construction, etc.
3.Specifications
Grade: Q235, Q345, X42-X70
Size: 3200x25.4mm
Thickness: 6-25.4mm
Standard: ASTM, API
Certification: ISO9001, SGS, CE
This is a pre-coating line that forms coats through advance application and baking of coating materials onto strips produced by Continuous Galvanizing Lines (CGL; to enhance corrosion resistance) and Continuous Annealing Lines (CAL; to improve properties, such as strength and elongation). It is an add-on for visual aspects of strips, such as color and gloss, as well as for protective elements, such as weather and corrosion resistance.
This is a processing of coating sheet with organic paint and then overprint multiple patterns. The coated sheet has good characteristic such as processability, corrosion resistance, decoration, as well high strength and good deformability. It is deep working product and energy-saving material. Recent years, high quality and multi-function color coating strip is developed rapidly and the color steel plate with high corrosion resistance, high deformability, fingerprint resistance and bacteria resistance etc will be good prospect.
technical parameter:
Materials GI, GL, Alu coil, AZ, EG,CR
Thickness 0.15mm-1.6mm
Flatness
