3 results about "Zinc white" patented technology

The invention provides a zinc-copper-nickel-copper smelting deslagging agent and a preparation method and a use method thereof. The zinc-copper-nickel-copper smelting deslagging agent comprises the following raw materials in percentage by mass: 5-15% of calcium fluoride, 20-30% of sodium carbonate, 5-15% of sodium fluoride, 10-20% of sodium hexafluoroaluminate and the balance of borax. Compared with the prior art, the zinc-copper-nickel-copper slag remover prepared by mixing the raw materials can effectively reduce impurities to be less than 0.14% of Fe, less than 0.005% of Pb and less than 0.003% of Si in the smelting process, the impurity components are obviously reduced, the number of times of component adjustment and unqualified sampling is reduced, impurities mixed in a casting blank are reduced, and finally the metal purity and the casting quality are improved. Meanwhile, loss of zinc and nickel is reduced to the maximum extent; and adverse effects on the zinc-copper-nickel alloy are avoided.

The application discloses a lead-free environment-friendly easy-to-cut zinc white copper, and each component content of the zinc white copper includes Cu: 42-46 wt%, Ni: 12-16 wt%, Mn: 4-6 wt%, Sb: 1.0-2.2 wt%, Fe: 0.01-0.2 wt%, Sn: 0.1-0.5 wt%, and the rest is Zn and inevitable impurities; the structure of the lead-free environment-friendly easy-to-cut zinc white copper includes Mn2Sb phase, the average distribution density of the Mn2Sb phase is greater than or equal to 4000 / mm 2 , and the average distribution density of the Mn2Sb phase with a particle size greater than or equal to 5 mu m is less than or equal to 200 / mm 2 . The zinc white copper has excellent cutting performance, good cold and hot working performance and corrosion resistance under the premise of not using traditional easy-to-cut elements such as Pb, Bi, Si, P and the like, through the synergistic effect of Sb and Mn, Fe and Sn. The application further discloses a preparation method and application of the zinc white copper.