Study on Cooling Rates and Mechanical Properties of H.T. Steel Plates in the Underwater Wet arc welding

J. Ocean Eng. Technol. 1988;2(1):125-134.

고장력강의 습식 수중 아크용접에 대한 냉각율과 기계적 특성에 관한 연구

김민남

부산공업대학 기계공학과

Keywords: underwater wet arc welding, weldability, underwater wet electrode, underwater shield welding method, coolung rate, mechanical property

핵심용어: 습식수중아크용접, 용접성, 습식수중용접봉, 수중실드용접법, 냉각속도, 기계적 성질

Abstract

The feasibility for improving the cooling rates and mechanical properties of wet welding process is experimentally investigated by using new developed underwater wet electrodes and H.T. steel plates. Main results of this experimental study can be summarized as follows; 1) By shielding around weld arc surrounding, the cooling rates resulting from wet welds with developed electrodes on TMCP steel plates can be lower than of non-shielded wet welds. 2)A high quality of mechanical properties of wet welds on TMCP steel plates can be obtained with shielded weld arc surrounding.