About Cabling Installation & Maintenance

Our mission: Bringing practical business and technical intelligence to today's structured cabling professionals

For more than 30 years, Cabling Installation & Maintenance has provided useful, practical information to professionals responsible for the specification, design, installation and management of structured cabling systems serving enterprise, data center and other environments. These professionals are challenged to stay informed of constantly evolving standards, system-design and installation approaches, product and system capabilities, technologies, as well as applications that rely on high-performance structured cabling systems. Our editors synthesize these complex issues into multiple information products. This portfolio of information products provides concrete detail that improves the efficiency of day-to-day operations, and equips cabling professionals with the perspective that enables strategic planning for networks’ optimum long-term performance.

Throughout our annual magazine, weekly email newsletters and 24/7/365 website, Cabling Installation & Maintenance digs into the essential topics our audience focuses on.

  • Design, Installation and Testing: We explain the bottom-up design of cabling systems, from case histories of actual projects to solutions for specific problems or aspects of the design process. We also look at specific installations using a case-history approach to highlight challenging problems, solutions and unique features. Additionally, we examine evolving test-and-measurement technologies and techniques designed to address the standards-governed and practical-use performance requirements of cabling systems.
  • Technology: We evaluate product innovations and technology trends as they impact a particular product class through interviews with manufacturers, installers and users, as well as contributed articles from subject-matter experts.
  • Data Center: Cabling Installation & Maintenance takes an in-depth look at design and installation workmanship issues as well as the unique technology being deployed specifically for data centers.
  • Physical Security: Focusing on the areas in which security and IT—and the infrastructure for both—interlock and overlap, we pay specific attention to Internet Protocol’s influence over the development of security applications.
  • Standards: Tracking the activities of North American and international standards-making organizations, we provide updates on specifications that are in-progress, looking forward to how they will affect cabling-system design and installation. We also produce articles explaining the practical aspects of designing and installing cabling systems in accordance with the specifications of established standards.

Cabling Installation & Maintenance is published by Endeavor Business Media, a division of EndeavorB2B.

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Patrick McLaughlin

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The Complete ERW Pipe Manufacturing Process Explained Step-by-Step

An infographic detailing the modern ERW pipe manufacturing process, from coil slitting and forming to high-frequency welding, testing, and finishing.

Introduction

Electric Resistance Welded (ERW) pipe has become an essential part of modern industry due to its strength, uniformity of properties, and ease of production. However, how does a flat strip of steel become a high-integrity pipe with no filler metal? This guide will take you through the modern High-Frequency ERW manufacturing process and explain essential processes with key parameters, and quality-checking at each stage.

ERW Manufacturing: Key Stages and Quality Control

Stage

Step-by-Step Process

Critical Parameters / Quality Checks

1. Uncoiling & Slitting

A master steel coil is unrolled and cut by rotary knives into narrower strips of a precise width.

Strip Width Tolerance (±0.2mm); Edge Quality (No burrs).

2. Forming

The flat strip is passed through a series of rollers that progressively bend it into a round, open-seam tube.

OD and Roundness Control; Seam Gap Alignment.

3. Welding

A high-frequency (HF) current (100-800 kHz) is induced on the strip edges, heating them to a plastic state.

HF Power & Frequency; Welding Temperature Monitoring.

4. Forging

Squeeze rollers apply immense pressure, forging the heated edges together into a homogenous weld seam.

Squeeze Pressure; Upset Formation.

5. Seam Treatment

Internal and external weld beads (upset) are removed (scarfed) by cutting tools for a smooth surface.

Scarfing Tool Condition; Surface Finish Inspection.

6. In-line NDT

The weld seam is immediately scanned by an in-line Ultrasonic or Eddy Current testing unit.

100% Weld Seam Inspection for Defects.

7. Sizing & Straightening

The pipe passes through more rollers to achieve final, precise diameter and straightness.

Final OD Tolerance (e.g., ±0.5%); Straightness (<0.2% of length).

8. Final Testing

After being cut, pipes undergo hydrostatic pressure testing and final visual/dimensional inspection.

Hydro-test Pressure & Duration (e.g., 5-10 sec at 20 MPa).

9. Finishing

Pipe ends are beveled or threaded as required, and coatings may be applied.

End Finish Angle (30° ±5°); Coating Thickness.

A close-up of a high-frequency welding station in action, showing the induction coil precisely heating the edges of a steel pipe before forging.

Conclusion: A Process Built for Reliability

The modern HFW ERW process is a series of stages that occur in a controlled environment and under continuously monitored conditions. All steps from slit to final product testing are essential in ensuring that the resulting product meets high international quality assurance standards that provide the end user with superior reliability and assurance of performance in its intended application. Knowing where the process came from and how it evolved provides a better understanding and appreciation of the quality and consistency embedded into every length of pipe.

Copyright NoticeThis article was originally created by CORTEC STEEL LIMITED and first published on the official website www.cortecsteel.com.Reproduction NoticeUnauthorized reproduction is strictly prohibited. For citation or reproduction, please credit the source and include a link to this article. All rights reserved.

Media Contact
Company Name: CORTEC STEEL LIMITED
Email: Send Email
Country: China
Website: https://www.cortecsteel.com/

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