In actual production, the welding electrode is usually divided into two categories – acid electrode and alkaline welding electrodes (also known as low hydrogen electrode) that is the proportion of acid oxide in the slag and alkaline oxide. When the proportion of acid oxide in the slag is high, the acid electrode is acid electrode and the other is that the alkaline electrode is compared with the welding process. Contact us to order the best alkaline welding electrodes.
What Are Characteristic of Alkaline Welding Electrode?
According the chart of welding electrode it is demonstrated that the alkaline welding rod coating with raised welding performance consists of: marble 39-45 wt%, silica mud 3-10 wt%, fluorite 16-25 wt%, metal Mn 2-4 wt%, Si-Fe alloy 0.5-3 wt%, Ti-Fe alloy 8-12 wt%, cellulose 0.5-1.0 wt%, titania 3-9 wt%, atomized iron powder 6-15 wt% and graphite+Na2CO3 1-2.5 wt%. The said components are mixed and the mixture is then coated with sodium water glass as adhesive onto low alloy steel welding core to produce alkaline low alloy steel welding rod or onto carbon steel welding core to produce alkaline carbon steel welding rod.
The alkaline welding rod with the welding rod coating has excellent welding performance. The alkaline electrode mainly relies on the marble and other carbonates to decompose CO2 to protect the body. Compared with the acid electrode, the hydrogen partial pressure in the arc column atmosphere is lower and the calcium fluoride in the fluorite is combined with hydrogen to synthesize hydrogen fluoride (HF) at high temperature, thus reducing the hydrogen content in the weld, so the alkaline electrode is also called the low hydrogen welding electrode. However, due to the reverse ionization of fluorine, in order to stabilize the arc of alkaline electrode, it can only be welded by direct direct connection (i. e. welding electrode).
Alkaline Welding Electrodes Distributor
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