The re-drying of the electrode
2013-03-29 by xiugai
The re-drying of the
Welding Electrodes :
The electrode place for a long time from manufacture to use hygroscopic,
Welding Materials core does not rust and not degenerate drug skin electrodes after drying, to ensure the original performance. Drying temperature according to the electrode manual provides low temperature up to less than the purpose of removing moisture, excessive easily lead to the decomposition of the binder drug skin cracking, welding, melting into the crack at the close, resulting in the shedding phenomenon As the baking temperature increases, the alloy element within the drug skin oxidation, the influence of the transition of the alloy. Electrode drying generally use a dedicated oven with automatic temperature control, should take and how much baking how much, with the drying with the principle, after drying in the outdoor dew put no more than four hours, the electrode layers stacked in an oven Φ4mm not more than three layers, Φ3.2mm no more than five or stacked thick cause uneven temperature, local overheating of the drug skin off. The drying box must with a row influx device. The number of re-drying, and can generally be repeated 2 times, more than two times to solicit the views of the welding rod factory.