Method for Improving Transverse Wall Thickness Precision of Seamless Steel Tube Based on Tube Rotation

Yong-zheng, Jiang; Tang, Honghu

doi:10.1016/s1006-706x(15)30091-1

Cited by 12 publications

(6 citation statements)

References 5 publications

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“…Several methods have been reported for improving the precision of the measurement. The influence mechanism of the tube rotation method has been analyzed to improve transverse wall-thickness measurement [22]. The influence of lateral displacement of the transducer on the precision of thickness measurement has been analyzed by Sen CONG [14].…”

Section: Novel Ultrasound System With Intelligent Compensate Sensing mentioning

confidence: 99%

Novel Ultrasound System With Intelligent Compensation for High Precision Measurement of Thin Wall Tube

et al. 2018

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Ultrasound is widely used for measuring wall-thickness and diameter of tubes. All tubes are required to conduct the full profile of inspection to guarantee the quality by using an automatic Nondestructive testing system. However, most of the current ultrasonic testing works were done under the stationary condition for both specimen and probes with limited detection area. There exist challenges for providing a precisely measurement by approaching an automatic ultrasonic testing with high-speed inspection while it suffers the influence from temperature change of the water, mechanical vibration and tube deformation. In this paper, the spectral analysis of ultrasonic resonance was applied to measure the wall-thickness and diameter of the tubes. Besides, a novel intelligent compensation ultrasonic system with embedded strategy of self-organizing feature mapping (SOFM) artificial neural network is proposed to eliminate the interference under the condition of high-speed inspection. The experimental and comparison studies have been carried out. The corresponding results illustrate that the measurement precision of diameter and wall thickness can be effectively improved by using the proposed method.

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Section: Novel Ultrasound System With Intelligent Compensate Sensing mentioning

confidence: 99%

Novel Ultrasound System With Intelligent Compensation for High Precision Measurement of Thin Wall Tube

et al. 2018

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“…The rotating roller is the main tool of deformation, which imposes the deformation force on the metal and determines the flow state of the metal. The movement style of mandrel affects the deformation of the metal [7][8] and the work of roller through the metal. The whole rolling operation is a process that involves the action and reaction between blank pipe and roller and the interrelation and check among roller, mandrel and metal.…”

Section: The Geometric Parameters Of Roller Passmentioning

confidence: 99%

Analysis of Computational Model of Seamless Steel Pipe Rolling Contact Force

Han

Liu

2018

KEM

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Due to the problems that the rolling force of seamless steel tube during tandem rolling process is affected by many factors, the calculation is complex and the accuracy is not enough. In order to improve the rolling force calculation accuracy of the tandem rolling mill, analyze the metal flow, stress distribution rules and cross section deformation characteristics during the rolling process of seamless steel tube, calculation of the rolling force was divided into the reduced-diameter area and the reduction of wall area, and a new calculation method was proposed, which concerns the rolling force in reduced-diameter area related to the material yield stress, friction coefficient and the crushing stress of the tube, while the rolling force in the reduction of wall area is only related to the material yield stress and the friction coefficient. The results show that the calculated rolling force is in agreement with the measured values with errors less than ±10%. The model satisfies the actual conditions and is applicable to engineering application.

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“…Another aspect of interest is related to the tube eccentricity. Jiang et al [10,11], designed a set of eccentric rolls which induced a moment on the tube causing it to rotate around its axis while it advances through the mill. In [10] the tube rotation method is presented for a single pass of the tube rolling process and analyzed by means of FEM, showing an improvement in the evenness of thickness distribution.…”

Section: Introductionmentioning

confidence: 99%

“…Jiang et al [10,11], designed a set of eccentric rolls which induced a moment on the tube causing it to rotate around its axis while it advances through the mill. In [10] the tube rotation method is presented for a single pass of the tube rolling process and analyzed by means of FEM, showing an improvement in the evenness of thickness distribution. Afterwards, in [11] the theory of the rotation is analyzed along with a FEM that is validated with experimental results.…”

Section: Introductionmentioning

confidence: 99%

Detailed study of tube hot rolling process by means of FEM

GIL

2023

Materials Research Proceedings

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Abstract. In this paper seamless tubes hot manufacturing calibration rolling is studied by means of a finite element model, to improve product quality and process performance. Based on real data provided by an industrial partner, Tubos Reunidos Group, a finite element model of the process has been created and validated for the thermo-mechanical analysis of the process. The model has been used for the study of the wall thickness evolution and peripherical distribution during process, the eccentricity and the polygonization effects. Results show that the tube velocity in the process is one of the factors affecting wall thickness eccentricity, due to mass flow conservation. Regarding polygonization and eccentricity effect it has been found that both effects increase in the rolling stands with higher reduction ratio, and are corrected afterwards. These effects are mainly due to the ovality of the rolls. However, the effect the different sliding velocity along roll perimeter has implications in the local deformation of the material in contact with the roll, causing local compressive stress areas in addition to the predominant tension areas.

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Method for Improving Transverse Wall Thickness Precision of Seamless Steel Tube Based on Tube Rotation

Cited by 12 publications

References 5 publications

Novel Ultrasound System With Intelligent Compensation for High Precision Measurement of Thin Wall Tube

Novel Ultrasound System With Intelligent Compensation for High Precision Measurement of Thin Wall Tube

Analysis of Computational Model of Seamless Steel Pipe Rolling Contact Force

Detailed study of tube hot rolling process by means of FEM

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