Workshop Technology
Linde welding uses

Carburising flame and rightward technique
Oxidizing flame and leftward technique
Neutral flame and rightward technique
Neutral flame and leftward technique

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Workshop Technology
The welding set up is said to have straight polarity, when

Work is connected to the positive terminal and the electrode holder is earthed
Work is connected to the negative terminal and the electrode holder is earthed
Work is connected to the positive terminal and the electrode holder to the negative terminal
Work is connected to the negative terminal and the electrode holder to the positive terminal

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