Failure analysis of oxygen hose of the lance equipment in LIB shop of Tata steel

Bhattacharya, S and Banerjee, A and Bhaumik, SK (2008) Failure analysis of oxygen hose of the lance equipment in LIB shop of Tata steel. Engineering Failure Analysis, 15 (8). pp. 1019-1026.

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Abstract

The hose of the oxygen lancing equipment in LD shop 2 has failed at the weld-bellows interface by reverse bending fatigue. The bending stresses were resulted due to inclined fitting of the hose at the fixed flange end. No metallurgical abnormalities or weld defects or mechanical damages were responsible for the fatigue crack initiation. It is recommended that if inclined fitment of the hose is not a process requirement, the original design be restored to realize the expected life of the component. On the other hand, if inclined fitment cannot be avoided, additional support may be provided for the hose at the fixed flange end to avoid reverse bending at the weld-bellows interface. A detailed analysis of the failure is presented in this report.

Item Type: Article
Uncontrolled Keywords: Oxygen hose;Bellows;Fatigue;Reverse bending
Subjects: CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
Depositing User: Users 11 not found.
Date Deposited: 02 Jan 2009
Last Modified: 07 Aug 2015 06:08
URI: http://nal-ir.nal.res.in/id/eprint/4940

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