High Speed Straight Seam Carbon Steel Pipe Tube High Frequency Welding Making Machine

Composition of the production line

1. Single uncoiler

Use: Open coil to steel strip.

Structure and work principle:

Cone head and hydraulic rectangular pyramid are structure.

Steel strip thickness:1.0-5=4.0mm

Steel strip width:190-400mm

Coil OD:800-1500mm

Coil OD:450-550

2. Five-roller leveling machine

User: used for steel strip leveling, main for leveling the head and end.

Structure and work principle

With a pair of pinching roller and leveling roller two up three down arrange at entrance strip. Pinching roller , leveling roller hydraulic cylinder depress , Leveling roller redard depress though worm , front and back both side worm plumbing at the same time, make sure up leveling roller and down fixed roller parallel, have leveling result.

Leveling speed:10m/min

Pinching roller qty:2

Pinching roller diameter:210mm

Straighter roller qty:5

Leveling roller diameter:120mm

Roller length:400mm

Main motor power installed capacity:11KW

3. Shearing and butt-welding machine

Use: Shearing and butt-welding before steel strip end and back steel strip head.

Structure and work principle

On production line, one steel strip feed to accumulator, when strip tail enter into shearing and butt-welding pinching steel strip position, shear blade fall, finish strip tail shearing ,then crane moving, export welding joint. When another strip enter this equipment shearing system, pinching steel strip, aligning strip head and tail, shearing strip head. Then pinching strip head and tail, begin to weld.

Max, Min, Average operation time:Max8min

Adopt CO2 welder

Wire feed speed:300-500mm/min

Max, Min welding time:2-5min

Shearing force:max80T

4. Cage accumulator

Use:Accumulator can receive steel strip from uncoiler discontinuously, at the same time. Function: Offer steel strip function for forming and sizing machine continuously. Storage strip before steel strip into forming machine, to make sure welding mill product continuously during front and rear steel strip butt-welding period

Structure and work principle

Front pinching roller diameter:φ210mm

Roller length:400mm

Driving motor type:Y4-160-21 30kw

Entrance steel strip speed:180m/min

Export steel strip speed (At the same time with product line).(Max80m/min)

boundary dimension:8000×2000×3600(length×width×high)

Storage ability(max and min standard):300m-500m

5. Forming and sizing machine

Function: It’s main equipment in production. It can roll the strip to round and welding it to pipe. The welding mode is HF welding.

φ114*4.0 mill adopt W-shape roller forming process.

Mill job lever:800mm

Mill rack arrange

WPL WL B₁ B₂ C₁ B₃ C₂ B₄ C₄ C₅ C₆ F₁ FG₁ F₂ FG₂ F₃ FG₃

SG SQ(2 rolls) BXW IQ DG₁ S₁ DG₂ S₂ DG₃ S₃ DG4 S4 DG5 S5 DG6 S6 TH₁ TH₂

Lever roller diameter:φ100mm

Vertical roller diameter:φ60mm

Main motor: DC motor

Forming:90KW×1set sizing:110KW×1set

Main reducer:2sets(all use hardness gear surface structure)

Forming:1set Sizing:1set

Product round pipe should adopt W roller forming process;

When produce square pipe, round to square technique are adopted

Remarks on Main machine performance

Feed in device:

The device set in order to let steel strop come in mill smoothly. It adopts Horizontal roller which up three and up and down adjust at the time and down four fixed Horizontal roller feed in vertical roller by in front and behind roller. It can straight and side direction location the steel trip.

Working Process Flow of Pipe Welding Machine

Raw material steel strip→Feeding→Uncoiler→Leveling→Shearing and butt-welding→Cage accumulator→Forming machine→HF welding→De-burr→Water cooling→Sizing→Cutting to length→Roller table→Final inspection→Storage

Main specification of the production line

1. Products to produce

1.1 Round pipe:φ48-φ127mm

Thickness:1.5-4.0mm

Length:6-12mm

2. Specification

2.1,Mill product speed:≤80m/min

2.2,Raw strip steel:

Raw material is low carbon steel and low alloy steel of hot rolled coil and cold rolled coil.

2.3,Size of Raw material

Thickness:1.5-4.0mm

Width of steel strips:190-400mm

Coil OD:800-1500mm

Coil ID:450-550mm

Coil weight:7t

2.4,Raw material steel strip material demand:δb≤560Mpa, δs≤340Mpa.

2.5,Raw material standard

Raw material quality standard:As per BS or EN

General Technical Specification

1. Raw material requirements
Material: Hot rolling or cold rolling steel
Tensile strength: σb≤600Mpa
Yield point: σs≤315MPa
Coil width: 60~240mm
Coil outer diameter: Max. Φ1600mm
Coil inner diameter: Φ508mm
Coil weight: Max.2.0T
Material thickness: 1.0~2.5mm for Round pipes / ≤2.0mm for Square & rectangle pipes

2. Output product scope
Pipe type: Straight seam high frequency welded pipes
Pipe purpose: Electric heating tube, fridge pipe, Auto car pipe, sporting facility tube, furniture pipe, cooler pipe, pressure feeding pipe, construction pipe, configuration pipe.
Round pipe size: Φ20mm~Φ76mm * 1.0mm~2.5mm
Square pipe size: 15×15mm~60×60mm * 1.0mm~2.0mm
Rectangle pipe size: 30×20mm~80×40mm * 1.0mm~2.0mm (a:b≤2:1)
Producing length: 4~10m (can be designed by customer request)
Cutting length precision: ±3mm (by hot flying computer saw)

3. Line capability
Line direction: Pending and will be decided by Buyer
Producing speed: 30~80m/min

4. Scope of supply

4.1. Technology process
Uncoiling→ Accumulating→ Leveling→ Forming→ HF welding→ Deburring (outer) → Cooling→ Sizing→ Straightening→ Cutting→ Discharging

4.2. Parts of Line
Double heads Decoiler--------------------------------1 set
Shear & butt welding device-------------------------1 set
Horizontal accumulator--------------------------------1 set
Forming & Sizing unit----------------------------------1 set
Hot flying computer saw----------------------------------------1 set
Run out table (single side discharging)-----------1 set
Control system------------------------------------------1 set
Roller------------------------------------------------------Optional / prepared by Buyer
Pneumatic system--------------------------------------Prepared by Buyer

Main Technical Performance

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

Foundation and advised Buyer’s necessary

Site area of machine (length X Width): 55m × 7m
Site area of cabinets (length X Width): 6m × 3m
Machine foundation base: See foundation drawing CAD
Overhead crane: 2 sets of ≥5 Ton overhead crane
Magnetic bar (impeder core): prepared by Buyer
Saw blade: Prepared by Buyer
Lubricating oil grease, cooling emulsion and etc will be prepared by Buyer
One set of Emulsion water cooling pool (Volume 30 m­3*1pools)for pipe-welding mill and plate exchanger of HF-welder, with two sets of pumps(AC4Kw,lift≥30m­ & flux≥30m­3/hour),water pressure meter,valves,and water pipes will be prepared by Buyer. Or use one set of glass fiber cooling tower for Emulsion water cooling pool and plate exchanger of HF-welder.
Adopting ground or attic frame and room of high-frequency welder for machine unit, stack basket for welded pipe, made by buyer.
The cables which from power station to pipe mill line, and cables & wires between machines and cabinets, all of them will be prepared by Buyer.
One set of ≥1m­3 /min air compressor and one set ≥0.50m­3 air tank, 0.7~1.0Mpa. Whole of the pneumatic supply system will be prepared by Buyer.
Lifts,tools,anchor bolts,expand bolts,embedded and fixing materials for installing machine will be prepared by Buyer.
Power supply:
High frequency welder power: GP-200Kw
Power of supply: 3P/4W/380V/50Hz
Total power of Line: 450Kw

Jiangsu Co-effort Mechanical & Electrical Technology Co., Ltd. was founded in 2017, we mainly committed to the development and production of cold roll forming machines. Since we established, we always been based on the concept of "quality-oriented-technological innovation". From the perspective of globalization, standing at the top of the industry, seized development opportunities and market space, made every effort to build a well-known brand in the cold roll forming industry of technological innovation.

Our company can provide advanced cold roll forming machine with multi-material, multi-thickness and multi-shape, and can provide flexible system solutions for other production processes such as welding, punching and automatic packaging in cold roll forming process.

We have profiler and roughness testing machine, special testing equipment for forming machine, hardness tester and other testing equipment. At present, we have provided high-demand services with automobile, construction, furniture, warehousing and other industries as well as domestic and foreign enterprises.