It has been widely focused because of its complex integral-structure and strict technical requirement since AP1000 main pipe appeared, which is made by 316LN stainless steel. After ten years of effort and exploring, excellent forging suppliers from all over the world agree that 316LN heavy forgings including AP1000 only can be formed by relatively simple solid forging technology though the grain size cannot meet the initial design requirement of ASTM level-4. The design concept of CAP1400 main pipe is the same as AP1000, in which the straight part, curving part and two supper-long asymmetrical nozzles should be an integrated structure manufactured by 316LN steel. But due to larger dimension and higher requirement for technology, the manufacturing of CAP1400 is more difficult. In order to realize the near net shape manufacturing of CAP1400 main pipe, we invent a green manufacturing technology with highly asymmetrical nozzle for stainless steel main pipe hollow forgings, We have successfully manufactured a stainless hollow forgings using a 78t ESR ingot with nozzle height of 400mm, wall thickness of 160mm, total length of 9000mm, and ASTM level 4-6 of grain size for each part.
| DOI | 10.11648/j.ijmea.20180602.11 |
| Published in | International Journal of Mechanical Engineering and Applications (Volume 6, Issue 2, April 2018) |
| Page(s) | 18-22 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Hollow Forgings, Near Net Shape Manufacturing, Grain Size
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APA Style
Wang Baozhong, Liu Ying, Guo Yi, Nie Yihong. (2018). Research on the Near Net Shape Hollow Forging Technology for CAP 1400 Main Pipe. International Journal of Mechanical Engineering and Applications, 6(2), 18-22. https://doi.org/10.11648/j.ijmea.20180602.11
ACS Style
Wang Baozhong; Liu Ying; Guo Yi; Nie Yihong. Research on the Near Net Shape Hollow Forging Technology for CAP 1400 Main Pipe. Int. J. Mech. Eng. Appl. 2018, 6(2), 18-22. doi: 10.11648/j.ijmea.20180602.11
AMA Style
Wang Baozhong, Liu Ying, Guo Yi, Nie Yihong. Research on the Near Net Shape Hollow Forging Technology for CAP 1400 Main Pipe. Int J Mech Eng Appl. 2018;6(2):18-22. doi: 10.11648/j.ijmea.20180602.11
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Download@article{10.11648/j.ijmea.20180602.11,
author = {Wang Baozhong and Liu Ying and Guo Yi and Nie Yihong},
title = {Research on the Near Net Shape Hollow Forging Technology for CAP 1400 Main Pipe},
journal = {International Journal of Mechanical Engineering and Applications},
volume = {6},
number = {2},
pages = {18-22},
doi = {10.11648/j.ijmea.20180602.11},
url = {https://doi.org/10.11648/j.ijmea.20180602.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmea.20180602.11},
abstract = {It has been widely focused because of its complex integral-structure and strict technical requirement since AP1000 main pipe appeared, which is made by 316LN stainless steel. After ten years of effort and exploring, excellent forging suppliers from all over the world agree that 316LN heavy forgings including AP1000 only can be formed by relatively simple solid forging technology though the grain size cannot meet the initial design requirement of ASTM level-4. The design concept of CAP1400 main pipe is the same as AP1000, in which the straight part, curving part and two supper-long asymmetrical nozzles should be an integrated structure manufactured by 316LN steel. But due to larger dimension and higher requirement for technology, the manufacturing of CAP1400 is more difficult. In order to realize the near net shape manufacturing of CAP1400 main pipe, we invent a green manufacturing technology with highly asymmetrical nozzle for stainless steel main pipe hollow forgings, We have successfully manufactured a stainless hollow forgings using a 78t ESR ingot with nozzle height of 400mm, wall thickness of 160mm, total length of 9000mm, and ASTM level 4-6 of grain size for each part.},
year = {2018}
}
TY - JOUR T1 - Research on the Near Net Shape Hollow Forging Technology for CAP 1400 Main Pipe AU - Wang Baozhong AU - Liu Ying AU - Guo Yi AU - Nie Yihong Y1 - 2018/05/08 PY - 2018 N1 - https://doi.org/10.11648/j.ijmea.20180602.11 DO - 10.11648/j.ijmea.20180602.11 T2 - International Journal of Mechanical Engineering and Applications JF - International Journal of Mechanical Engineering and Applications JO - International Journal of Mechanical Engineering and Applications SP - 18 EP - 22 PB - Science Publishing Group SN - 2330-0248 UR - https://doi.org/10.11648/j.ijmea.20180602.11 AB - It has been widely focused because of its complex integral-structure and strict technical requirement since AP1000 main pipe appeared, which is made by 316LN stainless steel. After ten years of effort and exploring, excellent forging suppliers from all over the world agree that 316LN heavy forgings including AP1000 only can be formed by relatively simple solid forging technology though the grain size cannot meet the initial design requirement of ASTM level-4. The design concept of CAP1400 main pipe is the same as AP1000, in which the straight part, curving part and two supper-long asymmetrical nozzles should be an integrated structure manufactured by 316LN steel. But due to larger dimension and higher requirement for technology, the manufacturing of CAP1400 is more difficult. In order to realize the near net shape manufacturing of CAP1400 main pipe, we invent a green manufacturing technology with highly asymmetrical nozzle for stainless steel main pipe hollow forgings, We have successfully manufactured a stainless hollow forgings using a 78t ESR ingot with nozzle height of 400mm, wall thickness of 160mm, total length of 9000mm, and ASTM level 4-6 of grain size for each part. VL - 6 IS - 2 ER -
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