西南石油大学学报(自然科学版) ›› 2009, Vol. 31 ›› Issue (2): 143-145.DOI: 10.3863/j.issn.1674-5086.2009.02.***

• 石油机械工程及其它 • Previous Articles     Next Articles

THE HIGH-SPEED ROLLER BIT BEARING SURFACE STRENGTHENING TECHNOLOGY

HUANG Zhi-qiang1 TU Xiao-fang2 WANG Xiao-feng1 DI Fu-chun3 PENG Shi-jin1   

  1. 1.Mechatronic Engineering College，Southwest Petroleum University，Chengdu Sichuan 610500，China；2.Dragon Bit Corporation Company of The Yichun City，Yichun Jiangxi 336000，China；3.Jinma Oilfield Development Corporation，Liaohe Oilfield，Panjin Liaoning 124010 ，China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-04-20 Published:2009-04-20

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Abstract: In view of the problems the roller bit bearing resistance to wear bearing bad，the life short and not able to adapt high speed well drilling，in this article，the surface engineering technology and the friction study are used，the roller bit sliding bearing surface strengthening craft is developed，series experimental study of the material is carried out and the performance is tested，organizational structure analysis，resistance to wear and bears experimental study are conducted，the result indicates that by using the plasma deposition DH-60 powder，bearing surface coating becomes tight，porosity is low，the organizational structure is tight，the flaw is less，the coating and the body material are highly homogeneous，after worn，the tested specimen presents no any flaw，the resistance to wear is enhanced by 30%，which effectively prolongs the life time of the roller bit wearing.

Key words: roller bit, sliding bearing, layer of deposition, resistance to wear

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