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5" (127mm) x 4mm ERW Tube Mill

AIS Machinery high-quality ERW 127mm tube mill to produce pipe diameter 25.4mm to 127mm within one line, thickness 2.0mm to 4.0mm, machine strong and service good.

Product Detail

5' (127mm) x 4mm ERW Tube Mill GI Pipe Production Line by AISMachinery

AIS Machinery high-quality ERW 127mm tube mill to produce pipe diameter 25.4mm to 127mm within one line, thickness 2.0mm to 4.0mm, machine strong and service good.

LIST OF EQUIPMENT AND SCOPE OF SUPPLY

Equipment

Quantity

Entry Section

▪Double mandrel Uncoiler

▪Shear & welder, with TIG welder

▪Horizontal strip accumulator

1No.

Forming, welding, cooling and sizing section

▪Forming mill with drive unit

▪welding mill

▪Solid state H.F. induction welder

▪Cooling trough

▪Sizing mill with drive unit

1set

1No.

1set

Cutting and Delivery Section

▪Friction saw cut-off

▪Driven roller run out table ,Inspection table & Collectors

1No.

Auxiliary equipment

▪Roll coolant system(cooling tower)

▪Centralized lubrication system

▪Hydraulic. Power Unit

▪Coolant liquid purify device

1No..

2Nos.

1No

Electrical Equipment

▪PCC Panel

▪AC/DC Motors

▪Drive Panels

▪MCC Panels

▪PLC(Fitted in one drive panel)

▪Control Desks

1No

As specified

3Nos.

1No.

3Nos.

The proposed tube mill is a combination of equipment installed in a line for the production of High Frequency Induction Welded (HFIW) carbon steel tubes. The process involved is cold forming of carbon steel strip in circular shapes, longitudinal welding, sizing, converting into specified shape and cutting to pre determined length.

The complete line is divided in three sections:

▪ Entry Section

▪ Forming, welding, Cooling and sizing Section

▪ Cutting and Delivery Section

Raw material (Steel Strip) in form of a coil is uncoiled and fed into forming section passing through the equipment of entry section. Entry section enables the tube mill to run continuously by using strip joining and accumulation equipment. Tube is formed in round shape passing through a set of driven and idler rollers of forming section before welding. In welding section tube id longitudinally welded by using high frequency induction welding method. Outside bead is removed and formed in shape of scrap. The weld seam is ironed and tube passes though the cooling section. In sizing section, tube is formed to specified size and converted into specified shape. After sizing, tube is cut to specified size and converted into specified shape. After sizing, tube is cut to specified length by using flying cutting equipment and delivered in collecting though passing through run out conveyor.

1. BASIC DESIGN DATA

Design of the proposed line is based on following specification:

▪ Raw Material Specification

Raw Material Feeding	CR bright tube with oiled, Galvanized steel, HR coil
Material Tensile Strength	Max 517MPa (75,000 psi max)
Material Yield Strength	Max 460MPa （67,000 psi max）
Coil OD	1200mm to 2000mm
Coil ID	508mm&610mm (customer order)
Coil Weight	Max 7000 kg
Strip Width	Min 80mm, Max400mm
Strip Thickness	Min2.0mm Max4.0mm

▪ Production Range

Type of production	▪Round Tubes ▪Square and Rectangular Hollow Sections
Round Tube OD	Min 25.4mm, Max 127mm
Round Tube Thickness	Min 2.0mm, Max 4.0mm
Square Hollow Section	Min 20x20mm, Max 100x100mm
Rectangular Hollow Section	Min 30x20mm, Max 120X80mm
Square and rectangle Tube Thickness	Min2.0mm, Max 4.0mm
Tube Cut Length	Min 6 meter, Max 12 meter

▪ Line Specification

Line speed	Max 50m/min Min 10m/min
Direction of Operation (To be confirmed by buyer)	Left → Right or Right → Left
Welding Method	High Frequency Induction Welding
Total Electric installed capacity	800kw
Line area	Approx. 70x8.0 meter (length x width)

Forming Section

轴材质Shaft material:	40Cr, HF tempering quenching
减速箱齿轮Material of bevel gear:	20CrMnTi
水平辊架Driven stand	7 sets
立辊架Idle stand	8 sets
减速箱Gear box	7 sets

Sizing Section

轴材质Shaft material:	40Cr,HF tempering quenching
减速箱齿轮Material of bevel gear:	20CrMnTi
水平辊架Driven stand	5 sets
立辊架Idle stand	5 sets
减速箱Gear box	5 sets