High Frequency Welded Pipe Mill HG127 Hf Welded Tube Mill Low Carbon Steel Low Alloy Constructional Steel

HG127 High-Frequency Welded Pipe Production Line is designed to produce welded round pipes of Ф40～127mm in diameter and 1.5～4.5mm in wall thickness as well as 40×40--100×100mm square pipes with thickness from 1.5-4.5mm and deformed pipes of the corresponding size. Adopting roll pass design, the production line can manufacture welded steel pipes with good quality machining and high precision assembling.

• Main Parameters and Specifications:

• Material Specifications:

Conforming to the YB189-64 standard

Material : Low carbon steel and low alloy constructional steel

Mechanical properties: σb≤520Mpa,σs≤365MPa

strip width:160～400mm

strip thickness:1.5～4.5mm

径Inner Diameter of Coils:φ508～φ610mm

Outer Diameter of Coils:φ1500～φ2000mm

Coil Weight:≤10.0T

• Welded Pipe Specification

•  Round Pipe Diameter :φ40～φ127mm

Square pipe size:40×40-100×100mm

•  Round pipe thickness:1.5～4.5mm

Square pipe thickness:1.5- 4.5mm

• Finish pipe length:4～12m
• Cut accuracy:±1.5mm

• Forming speed:75X45—80m/min；100X100—60m/min
• Power, Water & Air Supply

• workshop require::

6m wide, 100m long, at least 5m high from Ceiling Rails to Ground.

• Product process:

Coil Loading → Uncoiling →Cutting and Welding →Horizontal Spiral Accumulator → Forming, HF welding, Deburring, Cooling, Sizing, Straightening →cutting saw → Packing → Storage

• Main parameters of each unit.

•  double cone Hydraulic Uncoiler

The uncoiler is of the structure of one cone. It contains two main parts: main body and the fixed base. The main body is equipped with pneumatic system to satisfy the needs of expanding, contracting and braking of the mandrels.hydraulic expanding and Pneumatic driving

• straight head and pinch leveling machine

This unit is main used to lead the new coil steel head feed into the flattener unit ter uncoiler unit bring the coil into the working place.

straight head motor power :AC1.5KW

processing pressure:7Mpa

The leveling unit with 2 roll pinch and 5 roll leveling.

pinch roll diameter:Ф180mm

leveling roll diameter:Ф120mm

pinch and leveling motor:15kw

• automatic shear and welder

Shear and welder is used to cut the irregular ends of the strips and then connect the strips by welding.

•  horizontal accumulator

This unit is main include in press& carry material device, accumulator assemble, carry off material unit, electric control unit.

Feeding device

It is main include frame, electric motor, brake unit, circling direction transfer power axle of the reduce velocity, press & carry roll, pressure air system of guide roll, inspected velocity unit; it can supply the strip steel to accumulator and the mean times it will transfer the carry velocity information to electric control system, when we demand stop carry the material to this unit, it will stop roll to the electric motor and press& carry material roll by the break, and also could adjust the velocity to carry electric motor and the unit carry material velocity.

Accumulator frame assemble: include the electric motor, frame , inner circle roll, out circle roll and pressure roll. It can be used to storage the strip steel material from press& carry unit and it could be draw from the center send-off material roll.

Send-off material device: include frame, guide direction rolls, guide out roll of high or lower place. It can carry the strip steel to shape system and send the carry out material velocity information to electric control device.

technical parameters

working style:fixed circle

diameter :5.0M

advantage:storage more material,no strike to strip steel surface

steel coil thickness:1.5-4.5mm;

width:160-400mm

carry material going velocity:Vmax=120m/min

directly electric motor power of the press & carry:30KW

the electric motor of the accumulator frame : 55KW

• Forming & Sizing Mill

Forming & Sizing Mill adopts roller type forming principle and high-frequency induction welding. The strip is fed into the forming machine by the feeding device in the mill and the forming roller continuously rotate and press the strip into the required shape. Due to the skin and the kindred effect, the high-frequency current is concentrated on the weld joint that is heated rapidly and reaches the welding temperature. The tube seam is welded under the

forming speed:75X45—80m/min；100X100—60m/min

finish round pipe diameter:40-127mm

finish round pipe thickness:1.5-4.5mm

finish square pipe size:40*40-100*100mm

finish square pipe thickness:1.5-4.5mm

main motor: DC 160KW+160KW

• cold saw

used to precisely cut the pipe to length automatically under the condition that the pipe continuously delivered from the mill at high speed.

Round pipe diameter:Φ40-130mm,thickness:1.2-5.0mm,Q235 OR below grade.

Driving motor:22KW (15 SERVO(YASKAVA)

Feeding motor:5.5KW 4.4 SERVO(YASKAVA)

Blade cutting motor:22KW 18.5servo(made in china)

Feeding type:servo multi section feeding ,

max speed 60m/min

clamp tool: 3 group；

Tight power:hydraulic

Drag chain:steel

blade:High speed steel or alloy,dia 550mm；

cutting reducer model:150

length of the rack:4.5meter

demension:5600*1800*1400mm

•  Transit table

After cutting,the finish pipe running on the transit table,then use the automatic unit make it into stack desk