Cored Wire Manufacturing Line | ERW Tube Forming Solution

The cored wire tube manufacturing line combines ERW tube forming technology with an integrated powder feeding system. The equipment is designed to achieve smooth forming, controlled powder distribution, and reliable seam sealing. It provides stable operation, easy process control, and flexible configuration for different wire diameters and metallurgical powder materials.

Product Details

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Product Details

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Specification
 
 

What Is Cored Wire?

Cored wire is a special tubular wire made from low-carbon steel strip, filled with precisely formulated metallurgical powders. During steelmaking and secondary refining, the steel sheath melts in molten steel, releasing the internal powder to perform metallurgical reactions such as desulfurization, deoxidation, alloying, and inclusion modification.

Compared with direct powder addition, cored wire injection provides higher recovery rate, better reaction control, and improved steel cleanliness.
Our cored wire production line is a special-purpose ERW tube forming system designed for stable forming, accurate powder filling, and reliable tube sealing.

ored Wire Tube Production Process


Main Applications

Cored wire is widely used in secondary steel refining and metallurgy processes, including:

  • Desulfurization in ladle refining

  • Deoxidation and oxygen control

  • Precise alloy addition

  • Inclusion modification and shape control

  • Improvement of molten steel cleanliness and stability

Typical application areas include ladle furnace (LF), secondary refining stations, continuous casting preparation, and special steel production.

cored wire production


Common Cored Wire Types

Our production lines are suitable for manufacturing various metallurgical cored wires, such as:

  • • Calcium wire (Ca)

  • • Calcium silicon wire (CaSi)

  • • Aluminum cored wire (Al)

  • • Titanium cored wire (Ti)

  • • Carbon cored wire

  • • Flux and compound alloy cored wire

Different powder formulations can be processed according to customer metallurgical requirements.


Key Product Features & Performance

Our cored wire forming technology ensures:

  • Stable tube forming with smooth outer surface

  • Accurate and consistent powder filling rate

  • Reliable tube closing or high-frequency welding

  • Good mechanical strength for long-distance wire feeding

  • Uniform powder distribution along the full wire length

  • High production stability for continuous operation

These features help end users achieve better metallurgical reaction efficiency and more consistent steel quality.


Typical Technical Parameters

Item Specification Range
Finished wire outer diameter Φ9 – Φ20 mm
Steel strip thickness 0.3 – 0.6 mm
Steel strip material Low carbon cold rolled steel
Powder filling ratio 10% – 35%
Powder feeding accuracy ±1.5% (typical)
Maximum production speed Up to 120 m/min
Wire coil outer diameter Up to 1,200 mm
Wire coil inner diameter 400 / 500 mm (optional)
Wire winding type Coil or drum winding
Sealing / welding method Mechanical closing or HF welding
Line control system PLC automatic control
Power supply Customized according to local standard

Typical Process Flow

Steel Strip Uncoiling → Strip Guiding & Leveling → U-Forming & Pre-Forming → Automatic Powder Feeding & Filling → Tube Closing & Seam Sealing / HF Welding → Cooling → Precision Sizing → Straightening → Online Inspection → Wire Coiling or Drum Winding

Cored Wire Tube Production Process


Equipment System Configuration

A complete cored wire production line typically includes:

  • Uncoiler and strip accumulator

  • Precision roll forming section

  • Automatic powder feeding and dosing system

  • Tube closing or HF welding unit

  • Sizing and straightening section

  • Cooling system

  • Online inspection and monitoring

  • Wire coiler or drum winder

Each system is designed for continuous, stable production and easy operation.

  • Cored Wire Tube Production Process Overview
  • Cored Wire Tube Production

Why Choose Our Cored Wire Production Line

  • Specialized design for metallurgical cored wire production

  • Proven ERW tube forming technology

  • Accurate powder filling and control system

  • Reliable sealing and mechanical strength

  • Customization for different wire diameters and powders

  • Complete technical support and process integration

We provide complete cored wire production solutions, including line design, equipment manufacturing, installation guidance, and process optimization support.



RELATION EQUIPMENT

We provides all equipment to tube mill entry section:

Coil Car

Single And Double Heads Un-coiler & Hydraulic And Pneumatic Un-coiler

Peeler and hold down roll arm

Flattening Machine

Automatic and Semi Auto Shearer & Butt Welder

Vertical Cage Accumulator​ & Horizontal Loop Accumulator & Landing Horizontal Spiral Loop Accumulator

disc accumulator to storage strip

erw tube mill feeding section

OUR SERVICE

Why Choose Us?

Leading Technology, Reliable Quality, Excellent Service!

Optimized Design, High quality material select! 

Heat treatment process guarantee!

Spiral bevel gear, drum gear coupling and carburization.

Gear teeth quenching.

Driven system stable, efficient and wearable with lower noise.

High precision wear resisting and Long life of rollers.

All the machine Lathes, Key Grooves are positioned and Milled by CNC.

ais machinery exhibition attend

 

 

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Frequently Asked Questions (FAQ)

Is cored wire a spare part of an ERW tube mill?

No. Cored wire is a metallurgical consumable product, produced by a dedicated cored wire production line, not by a standard ERW tube mill.

What is the difference between a standard tube mill and a cored wire production line?

A cored wire line includes integrated powder filling and tube sealing systems, which are not available on standard tube mills.

What types of powders can be used?

Calcium, CaSi, aluminum, titanium, carbon, flux, and compound alloy powders.

How is powder filling accuracy controlled?

By automatic powder dosing and closed-loop control systems.

What wire diameters can be produced?

Typically Φ9 to Φ20 mm. Other sizes can be customized.

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