Direct connection method of direct current arc welding machine and how to select reverse connection in production
Now we generally welding rod is not divided into positive and negative connection method (feel sticky electrode can be reverse test). Our commonly used J422 is an acid electrode (leather), both reverse and positive can be. Unless there is a special electrode. Such as 507506427 basic electrode. We should use DC reverse connection in welding. Positive electrode. Usually guns are negative. Earth is positive.
Direct current connection method, negative pole gun, positive grounding wire.
