Raymond mill's requirement for arc welding

During welding, the arc is stable, the combustion is normal, and the splash is small, and the welding electrode is connected to the positive pole. Put the two output terminals of the dc welder in the left salt water. If a large number of bubbles are precipitated out at one end, the end is negative r.
Welding metallurgy reaction essence mound is the welding filler metal and base metal smelting process again, in the process of gold mouth melting. The gold chewing a slag of a gas ask complex chemical reaction and physical reactions.
There are two reaction zones in welding electrode arc welding process. Melt drop reaction zone, drug reaction area and molten pool reaction area
1. Molten drop reaction zone
In the reaction zone, from the formation of molten drops. Grow up, until the transition into the molten pool, has the following characteristics: high temperature, stability change is big, arc arc column area in 4500-7800 degrees Celsius temperature, when the welding ferrous metals, drop h activity spots temperature close to the boiling point of the core material (about 2800 degrees Celsius); Different from the welding parameters of the factory, the average temperature of the droplet is 1800-2400:. In this high temperature two, the metal will be strong. In conclusion, the main physical and chemical reactions in this reaction area are: evaporation of metals, decomposition and dissolution of gases, reduction of metals, and alloying.
2.skin reaction area
In this reaction area, the electrode skin is heated and physical chemical reactions occur between the various components of the solid.
Therefore, the requirements for welding in Raymond mill are very high, and workers should have certain welding techniques and levels.