1.Description of product
This equipment is specially used for producingΦ19-Φ50.8mm,
δ1.0-2.65mm high-frequency straight welded pipe and corresponding
square pipe and special-shaped pipe(δ≤2.5mm). The composition of
equipment is from uncoiler to fixed length cutting saw. Rolling
speed can be adjusted correspondingly within suitable range of pipe
diameter and wall thickness.
1.2 Applicable material:
(1) Hot or cold-rolled steel strip
(2) Material: Low-carbon steel, low alloy steel, galvanized steel
(3) The thickness of steel strip: 1.0-2.65mm
(4) The width of steel strip: 60-160mm
(5) I.D. of steel coil: Φ450-Φ550mm
(6) O.D. of steel coil: Φ800-Φ1200mm
(7)Maximum weight coil: 2000kgs
1.3 Dimension range of processing steel pipe:
(2)Wall thickness: 1.0-2.65mm(square pipe and special-shaped
1.4 Product (steel pipe) process flow:
Raw material (steel coil) → uncoiling → shearing and butt-welding →
material accumulating → non-power leveling →mill-forming →
high-frequency welding → removing burrs outside of weld seam →
cooling → sizing → roughly straightening → fixed length cutting →
1.5 Milling speed: 20-80M/min
1.6 High-frequency electrics power: 200 KW (solid state)
1.7 Advised user’s necessary accessories (only for reference):
(1)Mechanical equipment site: 40M × 4.5M (length × width)
(2)Electrical equipment site: 6M ×3M (length ×width)
(3)Machine unit foundation base (See supplier’s base drawing)
(4)Two sets of 5-ton overhead crane
a. Equipment motor: 132KW+7.5KW+15KW+15KW =169.5KW
b. High-frequency electric: 200 KW (Solid state)
(6)Saw blades (Disk) for tracking saw, specification as per
instruction book and quantity as per customer need.
(7)Magnetic bar (Impeder core) for welding pipe, purchase as per
pipe making size.
(8)One set of Φ2", 32M high-pressure pumps for pipe-welding machine
(9)One set of cooling water pool for pipe-welding machine, the
volume 30 M3 with water pipe, water pressure meter and valve. (Decide size and
quantity when installation on site, purchase from market)
(10)Machine unit electric circuit. Before assembling, circuit must
reach the electric cabinet of high-frequency room. Electric
connection for high-frequency room to overall control table and
button station. (Decide size and quantity when installation on
site, purchase from market)
(11)High-frequency room for machine unit. Adopting ground or attic
according to customer’s layout.
(12) One set of air compressor. (Purchase from market)
(13)Lifting equipment and tooling for installing machine, maximum
weight of one part is 5 tons.
2.Introduction of main components:
Structure type: Double-side 180ºrotary manual expanding tight,
which insure steel coil feeding alternatively and make steel strip
going into accumulator freely.
Steel strip width:60-160mm
Steel coil O.D. :Φ800-Φ1200mm
Steel coil I.D. :Φ450-Φ550mm
Steel coil weight: Max.2000kgs
2.2 Shearing and butt-welding machine, which insure double steel
tidily and then welding and leveling weld seam
(1)Structure: Cage-type plate-welded part with automatic feeding
and delivery system.
(2)Adjusting method: Manual spiral adjusting.
(3)Accumulating volume: 150-300M.
2.4 Forming, welding and sizing unit:
(1)Feed leveling device:
a. Type: 9 rolls are passively leveled for leveling strip steel to
make steel strips go into forming device.
b. Guiding roll: One pair
Mainly roughly mill-forming steel strip and controlling weld seam.
a. Horizontal roll stand:
Structure: Cast steel, double housing, changing rolls in the side
Diameter of horizontal roll’s shaft: Φ60mm, material: 42CrMo
b. Vertical roll stand:(including vertical roll group)
Type: Passive rotation
Diameter of vertical roll’s shaft: Φ35mm, material: 45# steel
c. Drive gear box
Structure: Spiral bevel gear, cylindrical gear
Material: casing: QT50, gear: 20CrMnTi and 40Cr, input and output
Drive transmission: 14 sets of Jeep Auto 212 universal transmission
d. One set of bed for installation
(3) Guiding extruding and welding scraping apparatus:
a. One set of guide roll stand for controlling direction of pipe
seam to insure pipe seam flatly and straightly entering into
b. One set of extruding roll stand for controlling weld seam to
realize successful welding.
c. Two sets of scraper frame for scraping outside weld seam
d. Installation bed along with forming machine
(4)One set of water cooling device.
(5)Sizing device: Mainly fine shaping pipe after welding and
controlling size accuracy. Each 6 sets of horizontal roll stand,
vertical roll stand and drive gearbox, 12 sets of universal
shaft.(structure same as forming device)
(6)Roughly straightening machine frame:
a. Type: Turk’s head type, 4 rolls two sides
b. One installation bed along with sizing main machine.
(7) Driving system: The main unit is connected with main reduce by
major motor and transmits power to gearbox branches, then gearbox
branches drive upper and down shafts on horizontal roll frame.
a. Main motor: Z4 series, DC 132KW one set
b. Main reducer: ZLY series (outside four-shaft ends) one set
2.5 Computer-controlled tracking cutting saw:
- Cutting method: Computer-controlled tracking and automatic cutting
- Cutting thickness: δ1.0-2.65mm
(3) Cutting O.D.: Φ19-Φ50.8mm
(4) Cutting length: 4-8M
(5) Cutting tolerance: ±3mm
(6) Cutting motor: AC 15KW grade-II
(7)Driving motor: DC 15KW
2.6 Finished pipe conveyor: (Run-out table)
Welded frame structure equipped with sizing signal system
2.7High-frequency electric: 200KW(Solid state)
Applicable power supply 380V/220V 50HZ