Wear of Laying Head Pipes in a Wire Rod Mill

Mukhopadhyay, Goutam; Bhattacharyya, S. K.

doi:10.1007/s11668-013-9701-6

Cited by 3 publications

(14 citation statements)

References 2 publications

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“…This is primarily due to severe wear at the inner surface of the LHP caused by abrasion from the hot rolled wire rod as it passes through the pipe at high speeds [1]. Therefore new materials are needed that can better withstand the high wear from the friction between the hot wire and the internal pipe surface at high temperatures.…”

Section: Severe Wear In Laying Head Pipesmentioning

confidence: 99%

“…Such applications require wire rod of optimized and consistent quality with an enhanced strength-toweight ratio to reduce maintenance and avoid equipment downtime or failures. In order to achieve these properties, high expectations are placed on the equipment used to manufacture wire rods [1]. Figure 1 shows a schematic diagram of a laying head pipe.…”

Section: Introductionmentioning

confidence: 99%

“…In the production of a wire rod, one of the most critical part of the process is when the finished hot-rolled wire rod passes through the pipe with a rotating curve-shape inside the laying head to form a coil, shown in Figure 2a. This process heats the pipe surface to a high temperature (800-900°C) [1]. The Laying Head Pipe (LHP) rotates at high speeds and, in doing so, forms the wire rods into their new coil shape while laying them onto the conveyor.…”

Section: Introductionmentioning

confidence: 99%

“…The Laying Head Pipe (LHP) rotates at high speeds and, in doing so, forms the wire rods into their new coil shape while laying them onto the conveyor. In a typical wire rod mill, a custom-designed pinch roll and LHP deposits the hot rod in convoluted form onto a roller-type Stelmor conveyor for air cooling [1]. The coil is then collected in bundle with the help of a reform tube and then is ready for delivery, see Figure 2b.…”

Section: Introductionmentioning

confidence: 99%

“…The coil is then collected in bundle with the help of a reform tube and then is ready for delivery, see Figure 2b. Effective use of the LHP at the coil formation state is also important to the effectiveness of the subsequent air cooling stage in order to ensure that the desired final properties of the wire are achieved [1]. Important parameters to consider are: Wire rod material; Inlet speed of the rolled rod (straight shape); Rotation speed of the laying head pipe; Dimensions of the rolled rod and of the laying head pipe; Temperature of the wire rod; Temperature inside the laying head; Temperature of the wall of the laying head pipe [1].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Laying Head Pipe Material for Production of Wire Roads in Long Rolling Mills

Spaghetti¹

2017

Anais Do Seminário De Laminação E Conformação

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Rolling small-diameter hot wire rods at high speeds with conventional laying head pipes can wear the pipe out frequently and affect quality and consistency in the final product. Laying head upgrades using Sandvik SAF2507LHP™ (UNS S32750) tubes make possible to achieve optimal metallurgical properties, smooth coil formation and easier coil handling. Operators can also avoid unwelcome shutdowns due to frequent worn pipe changes and turndowns. Sandvik have been developing different customers and understand their process needs. The suitable selection materials that are able to withstand high levels of wear better than low alloy and carbon steel grades that are commonly used in industry is very important to improve the quality and increase productivity. UNS S32750 tubes were demonstrably superior to low alloy and carbon steels when used in Laying Head Pipe system regarding tubes lifetime, reducing replacement, production interruptions and increasing reliability.

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Section: Severe Wear In Laying Head Pipesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Laying Head Pipe Material for Production of Wire Roads in Long Rolling Mills

Spaghetti¹

2017

Anais Do Seminário De Laminação E Conformação

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Life enhancement of bent pipe by heat treatment

Maitra

Kumar

Kulkarni

et al. 2022

Materials Today: Proceedings

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Force Analysis and Curve Design for Laying Pipe in Loop Laying Head of Wire Rod Mills

Yao

Ceccarelli

Carbone

et al. 2019

Chin. J. Mech. Eng.

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Laying head is a high-precision engineering device in hot-rolled high speed wire rod production line. Previously research works are focused on the laying pipe wear-resisting. Laying pipe curve design method based on wire rod kinematics and dynamics analyses are not reported before. In order to design and manufacture the laying pipe, the motion and force process of the wire rod in the laying pipe should be studied. In this paper, a novel approach is proposed to investigate the force modeling for hot-rolled wire rod in laying pipe. An idea of limited element method is used to analysis and calculates the forces between laying pipe inner surface and wire rod. The design requirements of laying pipe curve for manufacturing are discussed. The kinematics and dynamics modeling for numerical calculation are built. A laying pipe curve equation is proposed by discussing design boundary conditions. Numerical results with different laying pipe curves design parameters are plotted and compared. The proposed approach performs good result which can be applied for laying pipe curve design and analysis for engineering application.

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Wear of Laying Head Pipes in a Wire Rod Mill

Cited by 3 publications

References 2 publications

Laying Head Pipe Material for Production of Wire Roads in Long Rolling Mills

Laying Head Pipe Material for Production of Wire Roads in Long Rolling Mills

Life enhancement of bent pipe by heat treatment

Force Analysis and Curve Design for Laying Pipe in Loop Laying Head of Wire Rod Mills

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