Failure analysis of main shaft fracture of wind power

doi:10.13251/j.issn.0254-6051.2021.05.045

Heat Treatment of Metals ›› 2021, Vol. 46 ›› Issue (5): 259-261.DOI: 10.13251/j.issn.0254-6051.2021.05.045

• TEST AND ANALYSIS • Previous Articles Next Articles

Failure analysis of main shaft fracture of wind power

Yan Youzeng, Meng Gaoqiang, Cao Qi, Zhang Hao, Xia Guofeng

Mingyang Smart Energy Group Co., Ltd., Zhongshan Guangdong 528400, China

Received:2020-10-28 Online:2021-05-25 Published:2021-07-21

Abstract

Abstract: Failure analysis of main shaft fracture of wind power was studied. Through the analysis of designing, manufacturing and applying of the main shaft, it is found that there are multiple spot and dense over-standard defects(maximum defects of ϕ(7.0-14.2) mm), dendritic segregation, and the microstructure is not quenched and tempered structure. The results show that these defects are produced during steelmaking, forging and heat treatment, which cause the brittle fracture of the main shaft.

Key words: wind power, main shaft, 34CrNiMo6 steel, fracture failure

CLC Number:

TG166.2

Yan Youzeng, Meng Gaoqiang, Cao Qi, Zhang Hao, Xia Guofeng. Failure analysis of main shaft fracture of wind power[J]. Heat Treatment of Metals, 2021, 46(5): 259-261.

[1]	Shi Keqing, Guo Fu, An Longsen, Chen Yun, Du Ziyang, Wu Meng, Xu Qinpei. Heat treatment process of 42CrMo4 steel wind power main shaft [J]. Heat Treatment of Metals, 2021, 46(8): 201-204.
[2]	Yuan Rui, Pan Zhongde, Wu Huibin. Effect of normalizing process on microstructure and properties of 420 MPa grade steel plate for offshore wind power [J]. Heat Treatment of Metals, 2021, 46(10): 112-116.
[3]	Yuan Jingzhi, Shi Yuezhi, Xu Wenhua, Chen Lubin, Lü Yupeng. Structure-defect analysis of crack failure in 42CrMo wind power spindle [J]. Heat Treatment of Metals, 2020, 45(7): 206-209.
[4]	Wang Zhengbing, Zhu Baizhi, Chen He. Situation and trend of heat treatment technology in wind power gear [J]. HTM, 2020, 45(1): 34-41.
[5]	Yan Yongming, Sun Ting. Fracture failure analysis of 23CrNi3Mo steel shank adapter [J]. HTM, 2016, 41(5): 186-191.
[6]	Jin Shenchao1, Zhao Xianrui1, Li Ni1, Dai Sheng1, Zhang Jianyu2. Failure analysis on Cr12MoV steel cold pouching die [J]. HTM, 2015, 40(7): 189-193.
[7]	Yu Guowei, Zhao Xianrui, Xi Wen, Jin Shenchao, Li Ni . Fracture failure analysis of 3Cr13 stainless steel mold [J]. HTM, 2015, 40(5): 193-195.
[8]	Ren Huaihui1,2. Fatigue failure analysis on planetary gear system of wind power gear box [J]. HTM, 2015, 40(2): 209-213.
[9]	Gu Xiaoming1, Li Kangkang1, Liu Junwei2, Ding Sheng1, Ma Liang1. Distortion analysis and improvement of 34CrNiMo6 steel wind power annular gear quenched and tempered [J]. HTM, 2015, 40(12): 185-189.

Failure analysis of main shaft fracture of wind power

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 9

Recommended Articles

Metrics

Comments