Electrode from the electrode core and skin drug composition, the role of one of the core welding electrodes as conductive electrodes, it is also the main material to form the weld metal, so the electrode directly affects the quality of the core performance of the weld, the material is specially manufactured high-quality carbon steel welding rod steel core is typically 0.08% C low carbon steel, are the most over the H08 and H08A its carbon content and sulfur, phosphorus impurities are very harmful to harsh restrictions common electrode diameter ( the electrode core diameter) of 2.5 to 6 mm, length 350 ~ 450mm. While welding in general resistance to external damage with the ability, but can not ignore the poor because it is vulnerable to damage custody. Welding Electrodes Manufacturers In China is a ceramic product, he did not like the steel core and impact resistance, so the loading and unloading can not throw him. Electrode with carton packaging can not be used can not be linked to transport. Some models, such as special drying requirements of the welding electrode coatings alkaline than normal electrodes have to be handled with care. In general, welding by a plastic bag and carton packaging, in order to prevent moisture absorption, the electrode before use and can not open, try to be done now with the current split, if possible, the remaining electrode after welding and then sealing up . Electrode is not sensitive to the acidic water, and organic rutile type electrode to allow a higher water content. Therefore, according to the specific circumstances of damp in the 70-150 ° drying for one hour, good packaging and storage time is short, generally from time to dry before use. Basic low-hydrogen electrodes must be dried before use to reduce the amount of hydrogen electrodes, to prevent the pores, cracks and other defects, the general drying temperature of 350 ° C, one hour. Electrode can not be suddenly placed in the high-temperature furnace or sudden cooling, so as not to be skin dry. There are special requirements for the hydrogen content, the drying temperature should be increased to 400-500 ° C, one to the amount of hours. After drying the alkaline electrode temperature control is best placed in another low-temperature drying at 50-100 ° C in the storage tank and used with the check. When drying electrodes, each electrode can not be stacked too thick (typically 1-3) to avoid uneven heating and drying rod is not easy to exclude moisture. Open operation, electrodes must be properly kept overnight, does not allow open storage, should be stored at low temperature thermostat box, or the next day must be re-dried before use.
The so-called "date" does not mean storage time exceeds a certain time limit, but to varying degrees of quality changes occur (bad). Various types of welding store a long time, sometimes found in white crystalline Welding Consumables surface (hairy) which is usually caused by a water glass, these crystals are not harmful, it means a very long storage time of electrode wet performance. Years of storage electrode process should be carried out test, electrodes required temperature for drying. Electrode welding process when performance did not find abnormal changes, such as the phenomenon of drug block off successful skin and pores, cracks and other defects, the electrodes mechanical properties generally is guaranteed. As the core welding electrodes slightly damp rust, basically does not affect performance, but if the requirements of high quality welding, it should not be used. Electrode serious damp rust can be downgraded to use or appropriate components for general welding. Best according to the national standard test their mechanical properties, and then decide its use. If the paint contains a lot of soldering iron, the relative humidity is high and longer periods of storage, wet welding, or even to paint with corrosion phenomena, such as welding, although dried, still have holes or welding a high content of diffusible hydrogen , which also scrapped. Required to improve packaging to prevent electrode to absorb moisture in storage must be properly kept. Serious types of electrode deterioration, loss drug approved has serious phenomenon, this batch of electrodes should be scrapped.