General Parts

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Technical parameters and offer about

ZG76(Enlarged toΦ115mm)pipe making machine

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Description of product

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Summary:

This equipment is specially used for producingΦ48-Φ115mm, δ1.2-3.0mm high-frequency straight seam 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.

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Applicable material:
# # Hot or cold-rolled steel strip (As per GB708-88)
# Material:Low-carbon steel, low alloy steelδs≤345Mpa,δb≤610Mpa
# The thickness of steel strip: 1.2-3.0mm (As per GB708-88)
# The width of steel strip: 150-360mm
# I.D. of steel coil: Φ450-Φ550mm
# O.D. of steel coil: Φ1200-Φ1500mm
# Maximum weight coil: 6000kgs


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Dimension range of processing steel pipe:

(1)O.D.: Φ48-Φ115mm

(2) Wall thickness:1.2-3.0mm(square pipe and special-shape pipeδ≤2.5mm) (3)Length: 4-8M

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Product (steel pipe) process flow:

?Raw material (steel coil) → uncoiling → shearing and end welding → material accumulating → non-power leveling →mill-forming → high-frequency welding → removing burrs outside of weld seam → cooling → sizing → roughly straightening → fixed length cutting → finished pipe→run-out table
# # ?Milling speed: 20-70M/min
# ?Solid-state high-frequency welder: 250KW
# ?Advised user’s necessary accessories (only for reference):

# # Mechanical equipment site: 75M × 6M (length × width)
# Electrical equipment site: ?8M × 4M (length × width)
# Machine unit foundation base (See supplier’s base drawing)
# Two sets of 10-ton overhead crane
# Power supply:


a.Equipment motor: 4KW+18.5KW+22KW+110KW×2+37KW+22KW = 323.5KW

b. solid-stateHigh-frequency welder: 250KW
# # Saw blades(disk) for tracking saw, specification as per instruction book and quantity as per customer need.
# Magnetic bar(impeder core) for welding pipe, purchase as per pipe making size.
# One set of Φ3& quot;, 32m high-pressure pumps for pipe-welding machine cooling.
# One set of cooling water pool for pipe-welding machine, the volume 35m-3 with water pipe, water pressure meter and valve. (Decide size and quantity when installation on site, purchase from market)
# 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)
# High-frequency room for machine unit. Adopting ground or attic according to customer’s layout.
# One set of air compressor. (Purchase from market)
# Lifting equipment and tooling for installing machine, maximum weight of one part is 13tons.

# # Introduction of main components:


2.1 Uncoiler:

Structure type: Single-side hydraulic-pressure expanding tight, which insure steel coil feeding alternatively and make steel strip go into accumulator freely.

Applicable range:

Steel strip width: 150-360mm

Thickness: 1.2-3.0mm

Steel coil O.D.: Φ1200-Φ1500mm

Steel coil I.D.: Φ450-Φ550mm

Steel coil weight: Max.6000kgs

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2.2 Shearing and butt-welding machine, which insure two coiled steel strips shearing tidily and then welding together and leveling weld seam.

2.3 Horizontal-type accumulator:

Usage: The steel strips stored in it shall be enough to ensure main machine to run continuously while welding two coiled strips.

(1)Structure: Horizontal-type accumulator with automatic feeding and delivery system.

(2)Accumulating volume: 150-350m

(3)Feeding motor: AC 18.5KW

(4)Driving motor: AC 22KW

2.4 Forming, welding and sizing unit:
# # Feeding & leveling device: # # Type: 9 rolls are passively leveled for leveling strip steel to make steel strips go into forming device.
# Guiding roll: One pair


# Forming device:


Mainly roughly mill-forming steel strip and controlling weld seam.

A. Horizontal roll stand:

(a)Quantity: 7

(b)Structure: Cast steel, double housing, changing rolls in the side

(c)Diameter of horizontal roll’s shaft:Φ80mm, material: 40 Cr

??? B. Vertical roll stand:

(a)Quantity: 9(Vertical roll group)

(b)Type: Passive rotation

(c)Diameter of vertical roll’s shaft: Φ45mm, material: 45# steel

C.Drive gearbox branch:

(a)Quantity: 7

(b)Structure: Spiral bevel gear, cylindrical gear

(c)Material: casing: QT50, gear: 20CrMnTi and 40Cr, input and output shaft: 40Cr

(d)Drive transmission: 14 sets of Jeep Auto 4A-5A universal transmission shaft

D. Two sets of bed for installation

(3) Guiding, extruding and welding, scraping device:
# # One set of guide roll stand for controlling direction of weld seam to make pipe seam flatly and straightly go into extruding rolls.
# One set of extruding roll stand for controlling weld seam to realize successful welding.
# Two sets of scraper frame for scraping outside weld seam
# One set of bed for installation


(4)One set of cooling water tank.

(5)Sizing device:

a. Mainly fine shaping pipe after welding and controlling size accuracy. Each 6 sets of horizontal roll stand, vertical roll stand and drive gearbox branch, 12 sets of universal shaft (structure same as forming device)

b. Roughly straightening machine:
# # Usage: It is mainly used for straightening of finished pipe roughly online.
# Type: Turk’s head type? 4 rolls single side???????????? two sets
# Two sets of installation bed.


(6)Main 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.
# # Major motor: Z4 series, DC 110KW ????????????????two sets
# Main reducer: ZLY250-10-2 (outside four shaft-ends) ????two sets


2.5 Computer-controlled tracking cutting saw:
# # Cutting method: Computer-controlled tracking and automatic cutting
# Cutting thickness: δ1.2-3.0mm


(3) Cutting O.D.: Φ48-Φ115mm

(4) Cutting length: 4-8M

??(5) Cutting tolerance: ±3mm

(6)Cutting motor: AC 37KW Grade-II

(7)Driving motor: AC 22KW

2.6 Run-out table:

Welded frame structure equipped with sizing signal system

2.7Solid-state High-frequency electric: 250KW,

Applicable power supply 380V/50HZ