Silver-free and brittle fracture-resistant 18K rose gold and processing technology thereof
An 18K, rose gold technology, applied in the field of gold alloys, can solve the problems of accelerating the solidification rate of castings and brittle fracture of K rose gold, and achieve the effect of overcoming structural stress and brittleness, improving mechanical properties, processing efficiency and reducing scrap rate.
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Embodiment 1
[0017] A silver-free 18K rose gold with brittle fracture resistance and its processing technology. In terms of weight percentage, the composition of the alloy is Ba: 0.2wt.%, V: 0.6wt.%, Ni: 1.2wt.%, Sb: 1.0wt.%, In: 8.0wt.%, Au: 74.0wt.% , The balance is copper. The above-mentioned preparation method of 18K rose gold without silver and brittle fracture includes the following steps: adding the above-mentioned raw materials into an argon-protected induction electric furnace, and using a graphite crucible; after the metal is melted, using low-flow argon protection, Avoid large air currents to cause serious burning of alloy elements; heat preservation at 1150 degrees for 10 minutes during smelting, and stir evenly by high-frequency induction furnace electromagnetic stirring; after stirring evenly, heat preservation at 1250 degrees for 1 minute and cast out of the furnace; gold alloy casting adopts a diameter of 100-200mm The steel mold is cooled by water cooling. The obtained in...
Embodiment 2
[0020] A silver-free 18K rose gold with brittle fracture resistance and its processing technology. In terms of weight percentage, the composition of the alloy is Ba: 0.4wt.%, V: 0.8wt.%, Ni: 1.6wt.%, Sb: 1.2wt.%, In: 12.0wt.%, Au: 76.0wt.% , The balance is copper. The above-mentioned preparation method of 18K rose gold without silver and brittle fracture includes the following steps: adding the above-mentioned raw materials into an argon-protected induction electric furnace, and using a graphite crucible; after the metal is melted, using low-flow argon protection, Avoid large air currents to cause serious burning of alloy elements; heat preservation at 1150 degrees for 10 minutes during smelting, and stir evenly by high-frequency induction furnace electromagnetic stirring; after stirring evenly, heat preservation at 1250 degrees for 1 minute and cast out of the furnace; gold alloy casting adopts a diameter of 100-200mm The steel mold is cooled by water cooling. The obtained i...
Embodiment 3
[0023] A silver-free 18K rose gold with brittle fracture resistance and its processing technology. In terms of weight percentage, the composition of the alloy is Ba: 0.3wt.%, V: 0.7wt.%, Ni: 1.5wt.%, Sb: 1.1wt.%, In: 9.0wt.%, Au: 75.0wt.% , The balance is copper. The above-mentioned preparation method of 18K rose gold without silver and brittle fracture includes the following steps: adding the above-mentioned raw materials into an argon-protected induction electric furnace, and using a graphite crucible; after the metal is melted, using low-flow argon protection, Avoid large air currents to cause serious burning of alloy elements; heat preservation at 1150 degrees for 10 minutes during smelting, and stir evenly by high-frequency induction furnace electromagnetic stirring; after stirring evenly, heat preservation at 1250 degrees for 1 minute and cast out of the furnace; gold alloy casting adopts a diameter of 100-200mm The steel mold is cooled by water cooling. The obtained in...
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