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近年来,堆焊在我国工业中获得重大的发展,特别是电弧堆焊。可是电弧堵焊有一定的缺点,主要表现在堆焊过程中零件易引起变形,特别对小直径的或形状复杂的零件更加显著。此外,在电弧堆焊过程中,零件因受热的影响,内部组织产生变化,这种组织变化对经过淬火处理的小直径零件影响很大,它不仅使淬火组织退火,而且还会使零件过热,产生魏氏组织,严重降低了零件的性能。振动电弧自动堆焊是一种新的堆焊方法,它能把上述缺点降低到很小的限度内。振动电弧自动堆焊过程是将零件固定在车床上,并以一定转速迴转。焊条通过一种特殊结构的振动头,一方面保持一定的频率和振幅不断振动,一方面接着需要的速度送向零件。在焊条与零件之间接通低压的焊接电
In recent years, surfacing welding industry in China have made significant development, especially in arc surfacing. However, arc welding has some shortcomings, mainly in the process of welding parts easily lead to deformation, especially for small diameter or complex shape of parts is more significant. In addition, during the process of arc welding, the internal structure changes due to the heat affected by the parts. The change of the structure greatly affects the quenched small diameter parts. It not only makes the quenched structure anneal, but also overheats the parts, Produced Wei organization, seriously reducing the performance of the parts. Vibrating arc welding is a new automatic surfacing method, which can reduce the above shortcomings to a very small extent. Vibrating arc automatic welding process is to fix the parts on the lathe and rotate at a certain speed. Through a special structure of the electrode vibration head, on the one hand to maintain a certain frequency and amplitude of continuous vibration, on the one hand followed by the required speed to the parts. Welding between the electrode and the low voltage welding power