Technological Development of the Forged Low Pressure Rotor of Nuclear Turbine in China

Article Preview

Abstract:

The generation III nuclear technology (AP1000) has been introduced into China since 2006 along with the project of 1000 MW advanced passive pressurized water reactors which is a development of any of the generation II nuclear reactor designs incorporating evolutionary improvements in design developed during the lifetime of the generation II reactor designs. The low pressure rotor of nuclear turbine for AP1000 is currently the heavy forging which requires the use of the heaviest steel ingot and possesses the maximum weight and cross sectional area in the world. The forming and manufacturing technology of such heavy forging have been described in this paper.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

430-435

Citation:

Online since:

December 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2015 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] Information on http: /www. iaea. org/pris.

Google Scholar

[2] S. Z. Zou, The manufacture of rotor forging in China for thirty five years, Heavy. Casting. Forging. 1 (1994) 29-38.

Google Scholar

[3] B. Z. Wang, J. J. Gao, H. L. Liu, Review and prospect of super large steel ingot of extreme manufacturing, The 2014 Seminar of Ingot Manufacturing Technology and Management. Henan, China, (2014).

Google Scholar

[4] B. Gurovich, E. Kuleshova, O. Zabusov, A. Frolov, M. Saltykov, D. Maltsev, Influence of structural parameters on the tendency of VVER-1000 reactorpressure vessel steel to temper embrittlement, J. Nucl. Mater. 435 (2013) 25–31.

DOI: 10.1016/j.jnucmat.2012.12.020

Google Scholar

[5] V. Cihal. The influence of nitrogen, phosphorus, sulphur and nickel on the stress corrosion cracking of austenitic Fe-Ni-Cr alloys, Corros. Sci. 25 (1985) 815–819.

DOI: 10.1016/0010-938x(85)90013-7

Google Scholar

[6] Y. Yoshioka, H. Itou, Y. Tanaka, The influence of chemical composition and temper heat-treatment on strength and impact toughness in Ni-Cr-Mo-V steels. J. Iron. Steel. Inst. Jpn. 89 (2003 ) 705-710.

DOI: 10.2355/tetsutohagane1955.89.6_705

Google Scholar

[7] C. Y. Zhang, S. Yang, Smelting of the ultra pure rotor 30Cr2Ni4MoV steel, Cfhi. Technol. 2 (2008) 40-41.

Google Scholar

[8] Z. Lv, L. J. Song, X. F. Wang, Q. W. Wang, X. Q. Wei, W. Z. Xu, The manufacture of 1000MW ultra-supercritical steam turbine rotor forgings, Mag. Equip. Mach. 2 (2012) 10-18.

Google Scholar

[9] G. Y. Sha, J. S. Pan, M. Y. M, H. D. Chi, M. S. Zheng, The grain growth and structure inheritance of 20CrMnMo and 17Cr2Ni2Mo steels, Heat. Treat. Met. 6 (1995) 24-27.

Google Scholar

[10] X. H. Liu, J. T. Lin, Technical progress of domestic and foreign heavy turbine rotor forging materials, Heat. Treat. Met. Abroad. 6 (1999) 5-8.

Google Scholar

[11] F. Z. Xuan, X. Q. Huang, S. T. Tu, Comparisons of 30Cr2Ni4MoV rotor steel with different treatments on corrosion resistance in high temperature water, Mater. Des. 29 (2008) 1533-1539.

DOI: 10.1016/j.matdes.2008.02.003

Google Scholar

[12] R. Viswanathan, T. P. Sherlock, Long-time isothermal temper embrittlement in Ni-Cr-Mo-V steels, Metall. Trans. 3 (1972) 459-468.

DOI: 10.1007/bf02642050

Google Scholar

[13] Y. W. Li, Applying of refined 30Cr2Ni4MoV on slow pressure rotor of the ultra-super critical turbine, Turbine. Technol. 48 (2006) 73-75.

Google Scholar

[14] H. G. Guo, Z. S. Qu, Development of heavy forging manufacturing industry in our country, Heavy. Casting. Forging. 1 (2003) 42-45.

Google Scholar