What is it about?
In this paper, it is tried to repair steel surface grooves with the help of flame welding method by spraying pure iron powder in the flame path.
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Why is it important?
Today industrial game, preventive measures for maintenance and repair of the machinery and equipment are of special importance. Failure to identify cracks and action to prevent its growth and spread causes the tragic events. Failure in the metals mostly occurs in premature. So, it provides crisis conditions.
Perspectives
To improve mechanical properties and increasing useful life of metal pieces, different methods of welding are used for repairing surface crack of metal pieces. In this research, performance of flame welding method by spraying pure iron powder evaluated for repairing surface grooves of structural steel. First, four specimens prepared including one control specimen and other three specimens grooved specimens in depth of 1mm and in length of 12.5mm and groove width in the sizes of 0.5, 0.75 and 1mm. then, powder molted using oxyacetylene reducing flame and spraying iron powder in the flame path and attached to the inner surface of the groove and finally, the specimen repaired. Results showed that after repairing surface groove, tensile strength of the repaired specimens reached to the tensile strength of control specimen with the margin of 2.5%.
Dr Seyed Ebrahim Vahdat
Department of Engineering, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran
Read the Original
This page is a summary of: Repair of Structural Steel Surface Groove by Using Flame Welding Method by Spraying Pure Iron Powder, Archives of Foundry Engineering, January 2016, De Gruyter,
DOI: 10.1515/afe-2016-0072.
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