INTERNATIONAL RESEARCH JOURNAL OF SCIENCE ENGINEERING AND TECHNOLOGY
( Online- ISSN 2454 -3195 ) New DOI : 10.32804/RJSET
**Need Help in Content editing, Data Analysis.
Adv For Editing Content
TO REDUCE HEAT DISSIPATION RATE DURING SEAL WELDING BODY RINGS OF VALVES,PROBLEM FORMULATION AND ITS SOLUTIONS
2 Author(s): DR GURUDUTT SAHNI, BALPREET SINGH
Vol - 3, Issue- 3 , Page(s) : 5 - 8 (2013 ) DOI : https://doi.org/10.32804/RJSET
Thermal stresses occur as molten weld pools cool at which point cracking can occur both during and after welding. Moreover, the colder parent or base metal resists the inevitable contraction of the weld metal. In some instances heavy wall materials and aluminum alloys with higher thermal conductivity can act as a heat sink, drawing heat away from a weld and cooling at an accelerated rate. If moisture is present at a welded joint, the high heat of the welding arc will break the water down into its elements, hydrogen and oxygen.