Steel pipe seam annealing machine

 

The steel pipe seam annealing machine is a key piece of heat treatment equipment in welded pipe production lines. It is primarily used to anneal the weld seam of steel pipes after welding, eliminating welding stress, improving microstructure, enhancing corrosion resistance, and extending service life. This equipment is especially suitable for continuous production of stainless steel pipes, titanium alloy pipes, and other high-requirement metal tubes.


 

Dettagli del prodotto

Contatta ora

Dettagli del prodotto

Descrizione del prodotto

 

1. Introduction

The steel pipe seam annealing machine is a key piece of heat treatment equipment in welded pipe production lines. It is primarily used to anneal the weld seam of steel pipes after welding, eliminating welding stress, improving microstructure, enhancing corrosion resistance, and extending service life. This equipment is especially suitable for continuous production of stainless steel pipes, titanium alloy pipes, and other high-requirement metal tubes.


2. Working Principle

Induction Annealing Principle:

  1. Induction Heating: A high-frequency or medium-frequency power source generates an alternating magnetic field through induction coils, which induces eddy currents in the weld seam area, causing localized heating.

  2. Precise Temperature Control: Infrared pyrometers or thermocouples provide real-time closed-loop temperature control to maintain the weld seam at a set annealing temperature (typically 950°C–1100°C).

  3. Rapid Cooling: After heating, air or water cooling is applied to rapidly cool the seam, promoting the desired metallurgical transformation.

 
 
  • induction heating machine4
  • induction heating machine5

 

  • induction heating machine6
  • induction heating machine7

 

  1. 3. Basic Technical Data (Typical)

    Articolo Typical Range
    Diametro del tubo applicabile Φ10 mm ~ Φ168 mm
    Applicable Wall Thickness 0.4 mm ~ 5.0 mm
    Annealing Temperature Range 850°C ~ 1100°C
    Output Frequency (Power Source) 50 kHz ~ 400 kHz (customized per pipe size)
    Output Power 30 kW ~ 300 kW
    Line Speed Compatibility 10 ~ 120 m/min
    Heating Zone Length 100 mm ~ 300 mm (adjustable)
    Temperature Control Accuracy ±5°C
    Cooling Method Air cooling / Water cooling
    Sistema di controllo PLC + HMI (touchscreen interface)

    4. Main Components

    1. High- or Medium-Frequency Power Supply – Provides alternating current for induction heating.

    2. Induction Coil – Custom-designed (ring or U-type) to surround the weld seam.

    3. Support/Guiding Structure – Ensures pipe stability during the annealing process.

    4. Temperature Sensor – Infrared or thermocouple sensors for accurate weld temperature feedback.

    5. Sistema di raffreddamento – Air or water cooling units to rapidly reduce temperature.

    6. PLC Control System – Automates power, temperature, and speed adjustments.

    7. Human-Machine Interface (HMI) – Allows the operator to monitor and set parameters.

 

    • induction heating machine8
    • induction heating machine9

5. Operation Details

Basic Operation Workflow:

  1. Startup

    • Check cooling system, power, air, and water connections.

    • Launch the PLC and input preset parameters: temperature, speed, power level.

  2. Heating Start

    • Turn on the induction power; magnetic field is generated in the coil.

    • Pipe is fed into the coil either automatically or manually.

  3. Real-Time Temperature Control

    • Infrared thermometer monitors the weld seam; system adjusts power automatically to maintain set temperature.

  4. Cooling Process

    • Weld seam enters the cooling zone for rapid temperature drop, forming desired microstructure.

  5. Shutdown & Safety

    • After process completion, turn off the power and cooling in sequence.

    • Inspect coils, grounding, and pipes to ensure safe conditions.

 

  1.  
    •  

  •  
  1. Entra nella sezione Attrezzature
  2.  
  3. 1. Carro bobina e stoccaggio
  4. 2. Svolgitore a testa singola e doppia e svolgitore idraulico e pneumatico
  5. 3. Sbucciare e tenere premuto il braccio del rullo
  6. 4. Macchina per appiattire
  7. 5. Cesoia e saldatrice di testa automatica e semiautomatica
  8. 6. Accumulatore a gabbia verticale e accumulatore a circuito orizzontale e accumulatore a spirale orizzontale di atterraggio

Read More About impeder rod

Read More About ferrite impeder rods

Sezione di finitura
 
  1.  
  2. 1. Macchina a correnti parassite
  3. 2. Seam annealing machine
  4. 3. Straightener machine
  5. 4. Chamfer and end facer machine
  6. 5. Hydro Tester machine
  7. 6. Threading machine
  8. 7. Painting and oil machine
  9. 8. Automatic bundle and package machine

Read More About ferrite impeder rods

Read More About impeder rod

Ricambi e parti di consumo
 
  1.  
  2. 1. Rulli, stampi, matrici, materiali D2, D3 tra cui scegliere
  3. 2. Ferrite, Impeder, Fiberglass tube
  4. 3. HSS saw blades, TCT Saw blades, Friction saw blades
  5. 4. OD burr remove inserts, ID burr remover inserts
  6. 5. HF welder Induction Coil and other HF welder spare parts
  7. 6. Copper tube for induction Coil, PTFE pipe for Induction Coil
  8. 7. Mosfet, Boards
  9. 8. Steel pipe Strapping machine
  10. 9. Zinc Spray Machine, Zinc wire, Zinc spray gun

Read More About impeder rod

Read More About fiberglass tube

Certificato
 

Read More About erw tube mill china

Il nostro servizio
 
  1. Perché sceglierci?
  2. 1. Tecnologia all'avanguardia, qualità affidabile, servizio eccellente! Design ottimizzato, materiali di alta qualità selezionati!  Garanzia del processo di trattamento termico!

  3. 2. Ingranaggio conico a spirale, accoppiamento con ingranaggio a tamburo e carburazione. Tempra dei denti degli ingranaggi. Sistema di azionamento stabile, efficiente e indossabile con rumorosità ridotta.

  4. 3. Elevata precisione, resistenza all'usura e lunga durata degli utensili. Tutti i torni e le sedi per chiavette sono posizionati e fresati tramite CNC.

  5. 4. Il reparto qualità verifica la qualità delle materie prime e assicura il perfetto funzionamento della macchina.

Read More About impeder rod

Servizio post-vendita

  1. 1. I video dei test della macchina saranno forniti al cliente prima della spedizione.
  2. 2. Supporto tecnico online ASSISTENZA TOTALE GRATUITA.
  3. 3.Professional engineers team to install the machine,  train your employee well.
  4. 4. Garanzia di un anno e supporto tecnico a vita.
  5. 5.24 ore per la risposta del tecnico.
  6. 6. Il tuo rapporto commerciale con noi sarà riservato a terzi.
  7. 7.  We welcome customers to visit our factory anytime.

Read More About impeder rod

Contattaci

If you are interested in our products, you can choose to leave your information here, and we will be in touch with you shortly.

* Nome

* E-mail

Telefono

*Messaggio

induction heating machine FAQs

What is induction heating?

Induction heating is a non-contact process that uses electromagnetic fields to heat electrically conductive materials. It generates heat directly within the workpiece by inducing eddy currents.

How does induction heating work?

A high-frequency alternating current passes through a copper coil, producing a magnetic field. When a conductive metal is placed inside this field, eddy currents form and resistive heating occurs inside the metal.

What materials can be heated by induction?

Mostly metals—such as steel, stainless steel, copper, aluminum, brass, and titanium. Non-conductive materials like ceramics or plastics cannot be directly heated but may be indirectly affected.

Is induction heating energy efficient?

Yes. It has up to 90% energy efficiency, significantly reducing energy waste compared to traditional methods like gas furnaces or resistance heating.

What cooling system is required?

Most machines require closed-loop water cooling or chillers to cool induction coils, power electronics, and transformers.

Notizie correlate

AIS Machinery Showcases Advanced Tube Solutions at Tube & Wire Düsseldorf 2026

2026-04-18 03:20:20

AIS Machinery Showcases Advanced Tube Solutions at Tube & Wire Düsseldorf 2026

Tube & Wire Düsseldorf 2026, one of the most influential exhibitions in the global tube and wire industry, held biennially in Düsseldorf, Germany

Southeast Asia Client Visits Our Factory | Customized Tube Mill Solution Delivered

2027-04-17 00:00:00

Southeast Asia Client Visits Our Factory | Customized Tube Mill Solution Delivered

A Southeast Asia client visited our ERW tube mill factory to inspect production lines and discuss a customized tube mill solution. Impressed by our machine quality, welding performance, and engineering support, the client confirmed strong cooperation intentions. Discover how our ERW tube mill solutions improve efficiency, precision, and long-term production reliability.

Professional Cold Roll Forming Machine Factory for Production

2026-04-16 02:35:12

Professional Cold Roll Forming Machine Factory for Production

In the modern industrial landscape, the precision of metal shaping is the cornerstone of quality manufacturing. Partnering with a professional cold roll forming machine factory is essential for businesses looking to optimize their production lines, reduce material waste, and ensure high-dimensional accuracy. Whether you are producing C-channels, square tubes, or custom profiles, the choice of machinery determines your competitive edge in the market. This guide will explore the critical factors in selecting a factory and the technical advantages of advanced roll forming technology to help you make an informed investment.

Flat Bar Production Line for Steel Coils: How It Works & Why It Matters

2026-04-15 10:37:55

Flat Bar Production Line for Steel Coils: How It Works & Why It Matters

Looking for a flat bar production line? Learn how it turns steel coils into ready-to-use flat bars with precise length and high straightness. Compare it with slitting lines and get the best solution for your steel processing needs.

Looking for a Milling Saw for ERW Tube Mill? Here’s What You Need to Know

2026-04-14 00:00:00

Looking for a Milling Saw for ERW Tube Mill? Here’s What You Need to Know

Looking for a high-performance milling saw for your ERW tube mill? Upgrade to burr-free, high-precision pipe cutting with advanced flying saw technology. Improve efficiency, reduce rework, and meet export standards for carbon steel, stainless steel, and API pipes. Contact us today for expert solutions and competitive pricing tailored to your production needs.

5-Inch (127mm) ERW Tube Making Machine Delivered with Heavy-Duty Design and Advanced Quick Change System

2026-04-09 16:15:19

5-Inch (127mm) ERW Tube Making Machine Delivered with Heavy-Duty Design and Advanced Quick Change System

5-Inch (127mm) ERW Tube Making Machine Delivered with Heavy-Duty Design and Advanced Quick Change System

Metal Embossing Machine: Turn Flat Sheets into High-Value Textured Products

2027-04-07 00:00:00

Metal Embossing Machine: Turn Flat Sheets into High-Value Textured Products

Discover how a metal embossing machine transforms flat steel, stainless steel, and aluminum sheets into high-value textured products. Learn about its working principle, key components, and applications. Ideal for decorative and industrial use, embossing machines improve both appearance and performance. Explore complete embossing line solutions and find the right machine for your production needs.

Automatic Double Side Uncoiler with Hydraulic Expansion and Auto Rotation for Steel Coil Processing

2026-04-04 20:37:18

Automatic Double Side Uncoiler with Hydraulic Expansion and Auto Rotation for Steel Coil Processing

The Automatic Double Side Uncoiler is a high-efficiency solution designed for modern steel coil processing lines, including tube mills, roll forming machines, and slitting lines. With a maximum capacity of 4 tons per side, this machine ensures stable and continuous coil feeding while reducing downtime during coil change.

Invia un messaggio

Dear customer, thank you for your attention! We provide high-quality machinery and equipment and look forward to your orders. Please inform us of your needs and we will respond quickly!

Se sei interessato ai nostri prodotti, puoi scegliere di lasciare qui i tuoi dati e ti contatteremo al più presto.


it_ITItalian