Low Alloy Steel Tube Mill Line Steel Pipe Manufacturing Machine

Brand Name	Tailian		Place of Origin	China
Model Number	ZG219

Delivery Time:120days

Brief introduction and quotation of

ZG219 pipe making machine

Description of product

?Summary:

This equipment is specially used for producingΦ114-Φ219mm, δ2.0-6.5mm high-frequency straight seam welded pipe and corresponding square pipe and special-shaped pipe(δ≤6.5mm). The composition of equipment is from uncoiler to computer-controlled fixed length cutting saw. Rolling speed can be adjusted correspondingly within suitable range of pipe diameter and wall thickness.

?Applicable material: Hot or cold-rolled steel strip (As per GB708-88 or GB1591-88) Material: Low-carbon steel, low alloy steelδs≤345Mpa,δb≤610Mpa The thickness of steel strip: 2.0-6.5mm (As per GB708-88) The width of steel strip: 360-690mm I.D. of steel coil: Φ600-Φ800mm O.D. of steel coil: Φmax.=1600mm Maximum weight coil: 10000kgs ?Dimension range of processing steel pipe: O.D.: Φ114-Φ219mm (4.5\"～8\") Wall thickness:2.0-6.5mm(square pipe and special-shaped pipeδ≤6.0mm) Square pipe:?? 90㎜×90㎜～175㎜×175㎜ Rectangle pipe: 120×60㎜～150×200㎜ Length: 5-12m

1.4 Solid-state high-frequency welder: 500 KW

1.5Milling speed: 20-40m/min ???????Total capability: Approx. 2000KW

1.6Compressed air: Flow volume: 4000L/min? pressure: 0.5～0.7Mpa

1.7Water supply:

Flow volume of cooling water: <30t/h (circulating water) Water volume for high-frequency: 45t/h (circulating water) Pressure: ≥0.25Mpa

2. Product (steel pipe) process flow:

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

Main equipments of production line:

2.1Material treating equipment in entrance:

?? --Uncoiler

?? --Flattener

?? --leveling machine

?? --Shearing and butt-welding machine

?? --Horizontal-type sprial accumulator

2.2 Forming, welding and sizing unit:

?? --Steel-strip forming

?? --Welding table and burrs- removing device

?? -- Solid-state high-frequency welder

?? --Sizing unit

?? -- Computer-controlled tracking cutting saw

?? --Finished-pipe passing conveyor

?? --Electric controlling system for full-line

?Uncoiler:

Structure type: Double-drill hydraulic-pressure expanding tightly, which insure steel coil feeding alternatively and make steel strip go into accumulator freely.

Applicable range: 360-690mm steel strip width, 2.0-6.0mm thickness,

Φmax.=1600mm steel coil O.D., Φ600-Φ800mm steel coil I.D., Max.10000kgs steel coil weight, 4KW motor power, 7Mpa maximum hydraulic pressure.

Flattening device:

Applicable range: 360-690mm steel strip width, 2.0-6.0mm thickness,

Feeding material speed: 29M/min Motor power: 4KW

2.3Levering device:

Applicable range: 360-690mm steel strip width, 2.0-6.0mm thickness,

Working speed: 20M/min???????? Motor power: 5.5KW

2.4Shearing and butt-welding machine, which insure two coiled steel strips shearing tidily and then welding together and leveling weld seam.

Applicable range: 360-690mm steel strip width, 2.0-6.0mm thickness,

?? Welding speed: 1M/min?????? Hydraulic pressure: 0.4Mpa

Horizontal-type accumulator:

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

(2)Structure: Horizontal-type structure with automatic feeding and delivery system.

?(3)Feeding speed: 100～120m/min

(4) Feeding motor: DC75KW

(5) Drive motor:? DC75KW

?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: Two pair Forming device:

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

A. Horizontal roll stand:

(a)Quantity: 7

(b)Structure: ZG45 Cast steel (annealing treatment), double housing, changing rolls in the side

(c)Diameter of horizontal roll’s shaft: Φ120mm,

Material: 40 Cr(quenching treatment)

??? B. Vertical roll stand:

(a)Quantity: 9(Vertical roll stands group)

(b)Type: Passive rotation

(c)Diameter of vertical roll’s shaft: Φ80mm

?Material: 40 Cr (quenching treatment)

?Adjusting method: Manual single-spiral adjusting.

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 w