Damp Welding Supplies weldability:
The Welding Rod moisture absorption of moisture, it becomes a gas, under the action of heat in the welding arc, the decomposition of the hydrogen, resulting in the formation of welding cracks and pores. The moisture of the electrodes and electrode placement status, such as welding rod exposure storage tied to storage or on the welding rod tube, not the same amount of moisture, to limit electrode moisture absorption, the electrodes are generally used when the finished packaging polyethylene sealing plastic bag, according to information on, and even then, it can not completely moisture-proof long-term, and therefore provides a welding rod limit moisture absorption, see Table: the drug skin types require re-drying the water content% more than 3% of the titanium type of titanium calcium type 2 % cellulose type more than 6% of low-hydrogen 0.5% low-hydrogen electrodes moisture content and weld diffusible hydrogen content in a linear relationship, according to information on the drug skin containing 0.2% water, with the mercury method measured diffusible hydrogen
5ml/100g (E7018), according to the weld diffusible hydrogen content to determine the baking temperature of the must.