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High Quality ERW Tube Mill line

High frequency straight seam welded pipe production line is mainly used to produce electric welded steel pipes with φ60φ219mm and wall thickness of 2.06.0mm, and can also produce square and rectangular pipes and special-shaped pipes not exceeding the range of round pipes. API 5L tubes can be produced later by adding necessary equipment. The production line is designed and manufactured on the basis of digesting and absorbing similar equipment at home and abroad, combining with my country’s national conditions, boldly innovating, and listening to users’ opinions extensively. The equipment is economical, reliable and stable


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Product Detail

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Production Description

φ219×6.0 high frequency straight seam welded pipe production line is mainly used to produce electric welded steel pipes with φ60φ219mm and wall thickness of 2.06.0mm, and can also produce square and rectangular pipes and special-shaped pipes not exceeding the range of round pipes. API 5L tubes can be produced later by adding necessary equipment. The production line is designed and manufactured on the basis of digesting and absorbing similar equipment at home and abroad, combining with my country’s national conditions, boldly innovating, and listening to users’ opinions extensively. The equipment is economical, reliable and stable.

Production Range

Parameters

Round pipe

Square pipe

Rectangle pipe

Tube size

88-219 mm

90×90 – 170×170 mm

40×60200×100mm

Thickness

2.0-6.0mm

≤5.0mm

≤5.0mm

Material

Hot and cold rolled, Galvanized steel, Black steel Low carbon steel, low alloy steel Steel

Speed

10M/min45M/min

Length

6-12m

Max. Coil weight

15 tons

Basic Parameter

Low carbon steel and low alloy steel σB≤520mpa σS≤345mpa
Steel Coil inner diameter φ650-φ710mm (to be determined)
Outer diameter  φ1100φ2000mm
Roll weight ≤15 tons
Strip width 190-690mm
Electrical installed capacity about 1200KVA
Compressed air capacity 2m3/min 4-7Kg/cm2
Coolant capacity 50 tons/hour

Note: The installation of production line equipment requires that the height of the workshop (the distance from the top of the crane track to the ground) should be greater than 6 meters, the span is 18 meters, and the length is 110 meters. It is recommended to use one 15T and 5T crane.

Production Process

Uncoiling → straight head, pinch leveling → shearing butt welding → looper → forming, high frequency welding, deburring, on-line zinc replenishment, cooling, sizing, rough straightening → flying saw sizing → inspection and collection → packing →Weighing→Marking→Storage

图片1

 

Equipment composition and main parameters of each machine

Usage

It is used to accept the strip coil, transport it to the decoiler, and lift the strip coil to the center of the coil head

Structure

It is composed of material rack, traveling mechanism, oil cylinder, guide rail, etc.

Capacity

≤15T

Hold up

Hydraulic

Moving Mode

Motor with cycloid reducer drive

Straightening  machine

Usage

Used in conjunction with the uncoiler, the steel strip head is drawn from the uncoiler and sent to the pinch leveling machine for leveling

Structure

Press roller device, shovel head device, straight head device

Width

190690mm

Diameter

φ1100φ2000mm

Horizontal accumulator

Usage

It is used to store strip steel, continuously feed the pipe welding machine, and ensure the continuous production of the pipe welding machine.

Width

190690mm

Thickness

2.0-6.0mm

Classification

Horizontal looper

 

By clip feeding device, looper body assembly, discharging device and electrical control device

Motor

5.5KWx15

Feeding Speed

Vmax=120 m/min

Diameter

7.0m

Capacity

28T

 Main parameter

Motor and main drive system

The motor adopts  DC motor, model power 200Kw, 1000 rpm, two sets of main reducer

Reducer

The gear box is driven by spiral bevel gear, the material of bevel gear is 20CrMnTi, carburized and quenched, and the modulus is 14. The box body adopts a sub-box structure, which is convenient for maintenance.

Horizontal roll stand(Gantry side-out type roll change)

1. Horizontal roller shaft diameter φ130mm, material 42CrMo, high frequency quenching

2. Bottom diameter of roll: 220mm

3. There is a safety pad under the horizontal roller shaft, which has the function of overload safety insurance, which can protect the transmission and the gear box of the reducer

Vertical roller stand

vertical roller shaft diameter φ80mm, material 40Cr, high frequency quenching

Squeeze roll

five-roll extrusion

Scraping welding

manual rapid lifting, can be adjusted back and forth and up and down, easy to adjust

The forming and sizing drive shaft

the Steyr drive shaft

Production Speed

1540m/min.

 

 

Forming section arrangement:

 

anti-jump device vertical five-roller feeding:

V HVHVHVHVVV HVHVH

Welding section arrangement

guide, five-roll extrusion, scraper, polishing, cooling

Sizing section  arrangement:

 

 

VHVHVHVHVHVH                    2 sets of tachometer rollers with Turkish heads

 

 


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