Firestain is a layer of oxides that is visible on the surface of objects made of metal alloys containing copper when the object is heated, as by a jeweler...
4 KB (458 words) - 02:26, 30 October 2023
was discovered to impart the following properties to sterling silver: firescale elimination high tarnish resistance precipitation hardening and simple...
6 KB (525 words) - 07:34, 11 July 2024
used in alloys to reduce tarnishing, as well as casting porosity and firescale. Such elements include germanium, zinc, platinum, silicon, and boron....
23 KB (2,760 words) - 18:28, 22 July 2024
pickle (dilute sulphuric acid or organic acids which are used to remove firescale) buffing wheels polishing compounds. chasing repoussé engraving Silversmiths...
9 KB (885 words) - 09:24, 11 September 2024
process, and heavy metal remediation in an aqueous environment. Dross Firescale Hammer paint Slag Slag (welding) Cunha, Adriano Ferreira da; Mol, Marcos...
5 KB (650 words) - 13:26, 24 September 2024
or lengths of chain. The "black" in "blacksmith" refers to the black firescale[citation needed], a layer of oxides that forms on the surface of the metal...
50 KB (6,603 words) - 20:24, 16 September 2024
combination with denatured alcohol to reduce surface oxidation and formation of firescale on metals during annealing and soldering operations. Boric acid is used...
47 KB (5,000 words) - 13:49, 28 August 2024
precious metal alloys. In sterling silver alloys, for instance, it reduces firescale, increases tarnish resistance, and improves precipitation hardening. A...
71 KB (7,348 words) - 13:02, 4 September 2024