Method of making a flux, a brazing wire, and a brazing paste

A method of making a wire brazing composition comprising the steps of:

• making a brazing flux compound, wherein said step of making a brazing flux compound comprises the steps of:
• dispensing a desired amount of each of a plurality of ingredients;
• first adding potassium bifluoride;
• second adding boric acid on top of the potassium bifluoride;
• first mixing the boric acid and potassium bifluoride to form a substantially smooth wet first paste;
• third adding potassium tetraborate to the first paste;
• second mixing the potassium tetraborate with the first paste to form a second paste;
• fourth adding potassium fluoroborate to the second paste;
• third mixing potassium fluoroborate with the second paste to form a third paste;
• fifth adding potassium carbonate to the third paste;
• fourth mixing until potassium carbonate is completely dissolved thus forming a fourth paste;
• heating the fourth paste for a predetermined time at a predetermined temperature such that the said fourth paste is substantially dried into a substantially solid flux;
• and
• reducing the substantially solid flux to a powder flux;
• forming a silver brazing material into a desired shape;
• dispensing the powder flux onto a silver brazing material;
• and
• forming the silver brazing material and the powder flux into the wire brazing composition.

A method of making a brazing paste comprising the steps of:

• making a brazing flux compound, wherein said step of making a brazing flux compound comprises the steps of:
• dispensing a desired amount of each of a plurality of ingredients;
• first adding potassium bifluoride;
• second adding boric acid on top of the potassium bifluoride;
• first mixing the boric acid and potassium bifluoride to form a substantially smooth wet first paste;
• third adding potassium tetraborate to the first paste;
• second mixing the potassium tetraborate with the first paste to form a substantially creamy second paste;
• fourth adding potassium fluoroborate to the second paste;
• third mixing potassium fluoroborate with the second paste to form a third paste;
• fifth adding potassium carbonate to the third paste;
• fourth mixing until potassium carbonate is completely dissolved thus forming a fourth paste;
• heating the fourth paste for a predetermined time at a predetermined temperature such that the said fourth paste is substantially dried into a substantially solid flux;
• and
• reducing the substantially solid flux to a powder flux;
• forming a silver brazing material into a silver powder;
• combining the silver powder, the powder flux and a binder material;
• and
• mixing the silver powder, the powder flux and the binder material together to form the silver brazing paste.