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研究了Ｃｕ－Ｚｎ合金铸件的色泽特性与Ｚｎ质量分数变化的规律，并与三种Ｋ金（２４Ｋ，１８Ｋ和１４Ｋ）的色度参数进行了比较。结果表明，随Ｚｎ质量分数的增加，合金表面色中的红色成分先减少然后增加，而黄色成分和明度值先增加然后减少；合金的表面色泽由铜色向金黄色、黄色、绿黄、黄、金黄色变化。通过调整Ｚｎ质量分数，可获得色泽接近１８Ｋ和１４Ｋ金表面色的合金，但不能获得色泽接近２４Ｋ金表面色的合金。
The regularity of the color characteristic and Zn mass fraction of Cu-Zn alloy castings was studied and compared with the chromaticity parameters of three K gold (24K, 18K and 14K). The results showed that with the increase of Zn mass fraction, the red component in the surface color of the alloy first decreased and then increased, while the yellow component and brightness value first increased and then decreased. The surface color of the alloy changed from copper color to golden yellow, yellow, green yellow, yellow , Golden yellow change. By adjusting the mass fraction of Zn, an alloy with a color close to 18K and 14K gold surface color can be obtained, but an alloy with a color close to 24K gold surface color can not be obtained.