Results 171 to 180 of about 538 (193)

Effect of Induction Bending on 360 MPa Spiral Submerged-Arc Weld Pipe

ICPTT 2011, 2011
Based on the Ф711mm×10.3mm and Ф720mm×14.2mm 360MPa spiral submerged-arc weld pipe, adopting the processes of 900 induction quenching, ℃ 950 induction quenching & 480 tempering, the induction bends were ℃℃ manufactured. According to the processing technic and design feature of spiral seam bend, the destructive test sampling plan of spiral seam bend was
Qiang Chi, Yinglai Liu, Lingkang Ji
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Modelling and Predicting the Deformed Geometry of Thick-Walled Pipes Subjected to Induction Bending

Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, 2010
Induction bending offers a rapid, cost-effective method of producing complex convoluted pipework. The resultant bends, however, typically show unwanted geometric deformations which include wall thinning at the extrados, wall thickening at the intrados, awkward transitions on going from tangent to bend, and wrinkling at the intrados surface.
G J Collie, R J Higgins, I Black
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Establishing Induction Bending Technique for Ni-Based Alloy HR6W Large Piping

Advances in Materials Technology for Power Plants, 2019
Abstract In order to establish a induction bending technique for Ni-based alloy HR6W large pipe, induction bending test was conducted on HR6W, which is a piping candidate material of 700°C class Advanced Ultra-Super Critical. In this study, a tensile bending test in which tensile strain was applied and a compression bending test in which
Kyohei Nomura, Keiji Kubushiro, Hirokatsu Nakagawa, Yuzo Nishimoto, Takashi Yamaguchi, Hideyuki Mihune   +5 more
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Finite element residual stress analysis of induction heating bended ferritic steel piping

AIP Conference Proceedings, 2014
Recently, there is a trend to apply the piping bended by induction heating process to nuclear power plants. Residual stress can be generated due to thermo-mechanical mechanism during the induction heating bending process. It is well-known that the residual stress has important effect on crack initiation and growth.
Jong Sung Kima, Kyoung-Soo Kim, Young-Jin Oh, Hyung-Young Chang, Heung-Bae Park   +4 more
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Analysis in Workability of Pipe Bending Using High Frequency Induction Heating

1984
An investigation on pipe bending, using high frequency induction heating is done. The materials of pipes used have been mild steel and austenitic stainless steel.
H. Asao, K. Okada, M. Watanabe, H. Yonemura, T. Matsumoto, N. Umehara   +5 more
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Study of microstructural evolution and strength–toughness mechanism of heavy-wall induction bend pipe

Materials Science and Engineering: A, 2014
Abstract The induction bending and subsequent tempering process has recently been proven to be an optimal technological route for the manufacture of bend pipe with a better combination of strength and toughness. In this work, high temperature quenching followed by tempering treatment from 500 °C to 700 °C has been applied to heavy-wall bend pipe ...
Tao Zhou, Hao Yu, Junli Hu, Shaoyang Wang   +3 more
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Analytical Study of Appropriate Design for the High-Grade Induction Bend Pipes Subjected to Large Ground Deformation

21st International Conference on Offshore Mechanics and Arctic Engineering, Volume 3, 2002
In this study, the deformability of induction bends made out of high-grade line pipe is analytically discussed. In order to clarify the significant parameters for the deformability, 30 cases of finite element analyses simulating the deformation behavior subjected to internal pressure and bending moment were carried out.
Hiroshi Yatabe, Naoki Fukuda, Tomoki Masuda, Masao Toyoda   +3 more
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The Effect of Tempering Process on Microstructural Characteristics and Mechanical Properties of Induction Bend Pipe

2014
The heat treatment during manufacturing process of induction bend pipe had been simulated. The evolutions of ferrite, M/A island and substructure after tempering at 500~700 °C were characterized by means of optical microscopy, positron annihilation technique, SEM, TEM, XRD and EBSD.
Hao Yu, Tao Zhou
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Effect of Varying High Frequency Induction Bending on the Longitudinal SAW Weld of API X80 Steel Pipe

Materials Science Forum, 2012
Hot induction bending is a process applied to tubes produced for the oil and gas industry, where bending temperatures above Ac3 can be reached. The base metal is submitted to two thermal cycles, one during welding, generating the heat affected zone (HAZ), and another during bending when this HAZ is reheated. Also, after the bending process is completed,
R.A. Silva, G.Z. Batista, L. Felipe G. de Souza, Ivani de Souza Bott   +3 more
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Investigation of Residual Stress Distributions of Induction Heating Bended Austenitic Stainless Steel (316 Series) Piping

Transactions of the Korean Society of Mechanical Engineers A, 2014
따라서 유도 가열 굽힘 공정에 의해 제작된 원전 배관의 구조 건전성이 유지됨을 보장하기 위해서는 유도 가열 굽힘 공정Key Words: Induction Heating Bending Process(유도 가열 굽힘 공정), Austenitic Stainless Steel (316) Piping(316오스테나이트 스테인리스 강 배관), Residual Stress(잔류응력), Finite Element Analysis(유한요소 해석) 초록: 최근들어 원자력 발전소에 유도 가열 공정으로 굽힌 배관을 적용하려는 동향이 있다. 이러한 유도 가열 굽힘 공정 동안의 열-기계적 메커니즘에 의해 잔류응력이 발생할 수 있다.
Jong Sung Kim, Kyoung Soo Kim, Young Jin Oh, Hyun Young Chang, Heung Bae Park   +4 more
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