Stick Electrodes By Cross Marketing

Stick Electrodes Shielded metal arc welding (SMAW) / Manual metal arc welding (MMA) In SMAW or MMA using coated stick electrodes, the coating forms a protective gas shield and a slag, thereby protecting the transferred metal droplets and the weld metal against contact with atmospheric oxygen. Further functions of the coating are de-oxidation of the weld metal, increasing the metal recovery, compensating for burn-off and ensuring good wetting behaviour. In practical use there are three significant types of coating: rutile, basic and cellulosic and mixtures of these.