Brief introduction and quotation of

 ZG25 pipe making machine

Description of product

1.1 Summary:

This equipment is specially used for producingΦ8-Φ32mm, δ0.4-1.2mm high-frequency straight seam welded pipe(δ≤1.0mm).The composition of equipment is from uncoiler to copper-plating pipe coiled. 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 (As per GB700-88)

(2)Material: Low-carbon steel, low alloy steel

(3)The thickness of steel strip: 0.4-1.2mm (As per GB708-88)

(4)The width of steel strip: 25-100mm

(5)I.D. of steel coil: Φ450-Φ550mm

(6)O.D. of steel coil: Φ800-Φ1200mm

(7) Maximum weight coil: 800kgs

1.3 Dimension range of processing steel pipe:

(1)O.D.: Φ8-Φ32mm

(2)Wall thickness: 0.4-1.2mm(Square and rectangle pipe≤1.0mm)

(3)Length:4-8M

1.4 Product (steel pipe) process flow:

 Raw material (steel coil)→uncoiling→shearing and butt-welding→material accumulating→passively leveling→mill-forming→high-frequency welding→ removing burrs outside of weld seam→cooling→sizing→roughly straightening→fixed length cutting→run-out table

1.5 Milling speed: 20-90m/min(choose different speed as per different pipe diameter and thickness)

1.6 Solid state High-frequency electric power: 100 KW

1.7 Advised user’s necessary accessories (only for reference):

(1)Mechanical equipment site: 35M×4M (length × width)

(2)Electric installation site:5M×3M(length × width)

(3)Machine set groudwork foundation(see foundation drawing )

(4)Two sets of 3 tons overhead crane

(5) Power supply:

a.Equipment motor: 45KW+1.5KW+4KW+11KW= 61.5KW

b.Solid state high-frequency electric: 100 KW

(6)sharing and butt-welding machine(user provide for yourself or outsourcing)

(7) Saw blades(Disk) for tracking saw, specification as per instruction book and quantity as per customer need.

(8) Magnetic bar (Impeder core)for welding pipe, purchase as per pipe making size.

(9)One set of Φ2", 6M high-pressure pumps for pipe-welding machine cooling.

(10)One set of cooling water pool for pipe-welding machine, the volume 25M­³ with water pipe, water pressure meter and valve. (Decide size and quantity when installation on site, purchase from market)

(11)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)

(12)High-frequency room for machine unit. Adopting ground or attic according to customer’s layout.

(13)One set of air compressor. (Purchase from market)

2.Introduction of main components:

2.1 Uncoiler:

Structure form: Double-side manual expanding, which ensure steel coil feeding alternatively and make steel strip go into accumulator freely.

Applicable range:

Steel strip width:25-100mm

Steel strip thickness:0.4-1.2mm

Steel coil O.D. : Φ800-Φ1200mm

Steel coil I.D. : Φ450-Φ550mm

Steel coil weight: 800kgs

2.2 Shear and butt-welder, which ensures double steel coil shearing tidily and then welding together and leveling weld seam.(users prpvide for themselves or market purchasing)

2.3Accumulator: The strips stored in it shall be enough to ensure main machine to run continuously while welding two coiled strips.

(1)Form: Cage-type plate-welded part with automatic feeding and delivery system.

(2)Adjusting method: Manual spiral adjusting.

(3)Accumulating volume: 150-300M.

(4)Feeding motor: AC 1.5KW

2.4 Forming, welding and sizing unit:

(1)Feeding and leveling steel strips device:

a.  Type: 9 rolls are passively leveled for straightening strip steel before it is fed into forming unit.

b.  Guiding roll: One pair

(2)Forming device:

Mainly rough milling forming steel strip and controlling weld seam.

a. Horizontal roll frame:

Quantity: 8

Structure: 45#Cast steel, double housing, changing rolls its side

Diameter of horizontal roll’s shaft: Φ40mm, material: 42CrMo

b. Vertical roll frame:

Quantity: 8

Type: Passive rotation

Diameter of vertical roll’s shaft: Φ25mm, material: 45# steel

c. 4 sets of drive gearbox branch(double-gear block)

(a)Structure: Spiral bevel gear, cylindrical gear

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

(c)Drive transmission: 16 sets of CA141 universal transmission shaft

D. Bed for installation,use for welding and sizing.

 (3) Guiding, extruding and welding, scraping apparatus:

a.  One set of guide roll stand for controlling direction of pipe seam to ensure pipe seam flatly and straightly entering into extruding rollers.

b.  Two sets of extruding roll stand for controlling weld seam to realize successful welding.

c.  Two sets of scraper frame for scraping burrs outside weld seam

d.  Installation bed along with forming machine

(4) Cooling system: Water shower type cooling with water sink.

(5) Sizing device:

Mainly fine shaping pipe after welding and controlling size accuracy.

a. Each 6 sets of horizontal roll stand and vertical roll stand, three sets of gearbox branch (double connection), 12 sets of universal shaft.(structure same as forming device)

b. Roughly straightening machine frame:

Usage: It is mainly used for straightening of finished pipe roughly online.

Type: Turk’s head type,                Both side 2 rolls

Installation bed along with forming machine.

(6) Main driving system: The main unit is connected with main reducer by main motor and transmits power to gearbox branches, then gearbox branches drive upper and down shafts on horizontal roll frame.

a.Master motor: Z4 series DC 37kw                      one set

b.Main speed reducer:ZLY160-4.5(outside four shaft-ends)    one set

2.5 Computer cutting saw:

(1)Cutting method: Computer-controlled tracking and automatic cutting

(2)Cutting thickness: δ0.4-1.2mm

(3) Cutting O.D.: Φ8-Φ32mm

(4) Cutting length: 4-8M

  (5) Cutting tolerance: ≤±3mm

(6)Cutting motor: AC 4KW Grade-II

(7)Driving motor: DC 11KW

2.6 Finished pipe passing conveyor:  (Run-out table)

Welded frame structure equipped with sizing signal system

2.7 Solid state High-frequency electric: 100KW

Applicable power supply: 380V/220V 50HZ

3. Main e