Berita perhiasan

silver bangles design What is the discoloration of gemstones during wax setting?

Diposting di oleh Kingjy

The first situation occurs mainly because some gemstones are not suitable for wax setting casting. Gemstones with developed fissures are likely to change color after being subjected to high temperature and thermal shock. Some gems (such as amethyst, Topaz biru, Citrine, dll.) are unstable in color when exposed to heat, so this type of gem is not suitable for casting with wax. To determine whether a gemstone is suitable for wax setting casting, you can first test the gem’s heat resistance and the gem’s ability to withstand thermal shock. The color of gemstones whose color is improved artificially is generally unstable, and the color will change or fade after heating. Karena itu, wax setting casting is also not suitable for this type of gemstone. In addition to the nature of the gem, the mold temperature is also one of the important reasons for the loss of color of the gem. Excessive mold temperature or metal casting temperature will have a serious impact on the safety of gems during the casting process. Most gems have an extreme temperature, beyond which the color and even the crystal structure of the gem will change. Karena itu, the mold temperature and metal casting temperature should be reduced as much as possible during the wax inlay casting process. In terms of waterline setting, full consideration should be given to the flow rate. A waterline larger than that of conventional jewelry casting should be adopted. The circular cross-section waterline is preferred, and the auxiliary waterline is combined to increase the flow rate.

 

Desain Produsen Perhiasan OEM/ODM Kustom Perhiasan Anda Sendiri

Mari kita mulai : mo@kingjy.com

 

Guangzhou Jingying Fokus pada Kalung Cincin Grosir Kustom Gelang Anting Sterling Silver 925 perhiasan,Sterling Silver Gold berlapis 18K,14K,24K emas kuning,emas putih dan emas mawar.,merek logo atau kata -kata lain dengan ukiran laser sesuai dengan persyaratan pelanggan.

Kapasitas produksi bulanan kami terserah 50,000 Potongan Gelang Kalung Anting -anting Cincin Perhiasan.,Toko rantai perhiasan,toko outlet,Pedagang perhiasan,Perusahaan Merek Pedagang dan Perhiasan,profesional menyediakan membuat perhiasan khusus dan produksi massal berkualitas tinggi 925 Layanan perhiasan perak sterling.