摘要
The static and dynamic characteristics of underwater plasma arc, arc shape and heating features to the workpieces, are studied, lt shows that underwater plasma arc has higher energy rate, higher rates of heating and cooling. Furthermore, it reduces the pollutions of noise ,arc light , dust and ozone; strengthens the cooling of nozzle, thus it is advantageous to develop various new technologies of underwater material processing. The static characteristic is rising. The dynamic characteristic is of quasi-cyclic fluctuations whose mechanisms and solving methods are pointed out.
The static and dynamic characteristics of underwater plasma arc, arc shape and heating features to the workpieces, are studied, lt shows that underwater plasma arc has higher energy rate, higher rates of heating and cooling. Furthermore, it reduces the pollutions of noise ,arc light , dust and ozone; strengthens the cooling of nozzle, thus it is advantageous to develop various new technologies of underwater material processing. The static characteristic is rising. The dynamic characteristic is of quasi-cyclic fluctuations whose mechanisms and solving methods are pointed out.
