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  • The Application Of Sodium Carboxymethyl Cellulose in Welding Electrode
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The Application Of Sodium Carboxymethyl Cellulose in Welding Electrode

Published by SINOCMC at 2021-06-25
cmc-application-in-welding-electrode

cmc-application-in-welding-electrode

Sodium Carboxymethyl Cellulose can be used in the production of welding electrodes. In the welding electrode industry, when manufacturing welding electrodes, arc stabilizers, slag forming agents, alloying element powders and water and water glass are needed to mix together and configure it into an electric welding rod, extrude it together with the copper core wire and apply pressure to the surface of the core wire. In order to improve the pressure coating effect, sodium alginate is often added to the welding flux for lubrication. The disadvantage is that during the baking process, the sodium alginate decomposes and blisters which makes the welding flux easy to fall off. However, the skeleton structure of sodium carboxymethyl cellulose is similar to that of sodium alginate and can be used as a lubricant. In addition, sodium carboxymethyl cellulose can also be used as a gas-generating agent.

The advantages of sodium carboxymethyl cellulose in the production of welding electrodes:

  1. After adding sodium carboxymethyl cellulose, the welding rod has good pressure coating, good lubricity, and the welding flux is not easy to fall off.
  2. Compared with sodium alginate, CMC has obvious price advantage and is much cheaper than sodium alginate.
  3. When sodium carboxymethyl cellulose and alkaline earth metal hydroxide are used together, the pressure coating effect is greatly changed, and the quality of the electrode is significantly improved.

SINOCMC Team

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