The harmful effects of moisture on electrodes
Welding rod factories always do baking disposal before using welding rods, why is this? It turns out that this is to reduce and effectively prevent welding defects.
Alkaline electrodes can easily absorb moisture in the external environment, causing the electrodes to be wet, in welding operations, moisture will cause the onset of porosity and other defects in the weld. Therefore, the welding rod storage environment needs dehumidifier for indoor temperature and humidity control.
The surface of the welding consumables have a layer of protective flux skin can protect the weld molding. Combustion of inert gas can be useful to isolate the outside air to prevent excessive oxidation of high-temperature metal and reduce the weld pressure capacity; electrode flux skin contains arc stabilizer to stabilize the welding arc. Alkaline welding rod if long exposure in a wet environment, the flux skin absorbs too much water, in the welding, welding rod combustion as well as the iron core resistance city seizure heat, when the moisture vaporization is too fast, it will make the fine flux skin cracking, caused by the electrode can't constitute excellent protection.
After the welding rod is damp, when the workers welding will indirectly cause more slag, bubbles, resulting in weak welding strength. The current is not good control, burn the metal being welded. Has been damp welding rod in the welding process has an extremely adverse effect on the welding process, moisture absorption to appear when the arc. Easily caused by slag, can not be well wrapped around the molten pool, and affect the mechanical properties of the weld metal, serious will affect the personal safety of personnel.
Welding in the automobile, ship, electrical and other manufacturing industries is very widely used, the production of welding consumables, storage and transportation have a strict management system, the quality of welding consumables directly affect the quality and safety of welding products. The use of dehumidifiers to accurately control the temperature and humidity of the welding consumables storage room, you can effectively avoid the cracking of the flux skin, welding rod moisture caused by a series of problems, reduce the cost of waste.
PARKOO industrial dehumidifier introduces the international level of dehumidification technology, set of intelligence, human nature, energy saving as a whole, comprehensively solve the material storage and industrial production environment due to the impact of humidity, such as moisture, production impact, process limitations and other issues, and strive to create an energy efficient, accurate humidity control, enhance the efficiency of the production and warehousing environment.
