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Studies on the Material Characteristics of Bolt
Corresponding Author(s) : Jianjun Shi
Asian Journal of Chemistry,
Vol. 26 No. 6 (2014): Vol 26 Issue 6
Abstract
In order to study how to improve the overall performance of the operational metal bolt, based on the production process of an ordinary bolt used in understructure engineering, this paper focuses on the existing problems of ordinary metal bolt identified by some survey and analysis. The results show that the structure of operational metal bolts is so unreasonable that the bolt tail is easy to fracture with low load capacity. Besides, it also introduces a new type of strong metal bolt and its heat treatment and roughing processing technology. Through bolt tensile and metallographic test, the property of the new bolt is analyzed. The new findings indicate that after special processing technology, the overall strength and plastic of the bolt has been greatly improved and the grain of bolt tail structure refined ,which would help build up favorable working conditions for bolt tail.
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- F.Q. Gao and H.P. Kang, J. China Univ. Mining Technol., 18, 509 (2008); doi:10.1016/S1006-1266(08)60285-0.
- Kang H P, Coal Science Technol., 28, 1 (2002).
- H. Kong and N.J. Ma, Coal, 10, 4 (2001).
- H. Kong and N.J. Ma, Coal, 11, 4 (2002).
- N.J. Ma and C.J. Hou, The Theory and Application of Development Rock Pressure, Coal Industry Press, Beijing (1995).
- N.J. Ma, M.K. Jia, Q.B. Zhao and S.W. Liu, The New Technology of Coal Road Tunnel Bolt Support, China University of Mining and Techno-logy Press, Xuzhou (2006).
- N.J. Ma, W. Liu Sh, G.T. Deng and H.Y. Shi, J. China Coal Soc., 30, 327 (2005).
- N.J. Ma, G. Qu and J.J. Shi, Sci. Technol. Information, 11, 142 (2003).
- N.J. Ma, J.J. Shi and D.W. Zou, J. China Coal Soc., 30, 187 (2005).
- N.J. Ma, L.J. Wu, H.Y. Liu and Q.Q. Chen, Coal Sci. Technol., 34, 77 (2006).
References
F.Q. Gao and H.P. Kang, J. China Univ. Mining Technol., 18, 509 (2008); doi:10.1016/S1006-1266(08)60285-0.
Kang H P, Coal Science Technol., 28, 1 (2002).
H. Kong and N.J. Ma, Coal, 10, 4 (2001).
H. Kong and N.J. Ma, Coal, 11, 4 (2002).
N.J. Ma and C.J. Hou, The Theory and Application of Development Rock Pressure, Coal Industry Press, Beijing (1995).
N.J. Ma, M.K. Jia, Q.B. Zhao and S.W. Liu, The New Technology of Coal Road Tunnel Bolt Support, China University of Mining and Techno-logy Press, Xuzhou (2006).
N.J. Ma, W. Liu Sh, G.T. Deng and H.Y. Shi, J. China Coal Soc., 30, 327 (2005).
N.J. Ma, G. Qu and J.J. Shi, Sci. Technol. Information, 11, 142 (2003).
N.J. Ma, J.J. Shi and D.W. Zou, J. China Coal Soc., 30, 187 (2005).
N.J. Ma, L.J. Wu, H.Y. Liu and Q.Q. Chen, Coal Sci. Technol., 34, 77 (2006).