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Posts tagged 'anhydrous borax'

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To flux or not to flux ...That is the question!

By David Kayne 5 months ago 7768 Views

Use flux or not? The real question is do you understand what flux is for?

Flux is used to reduce the temperature at which the surface elements (scale, impurities, etc.) become fluid on the surface of the metal. It protects the surface from erosion due to air or gas blasting against the metal. Therefore if you do not use flux you must raise the temperature enough to make the elements on the surface fluid.