Preparation method of shallow crystal and yellow crystal bead blank

Abstract

The invention discloses a preparation method of a shallow crystal and yellow crystal bead blank. For overcoming the defects that lead oxide is needed in the raw materials, iron ions have poor coloring and optical properties, the coloring of manganese is instable and the crystal bead blank is poor on the aspects of physical and chemical properties and the like in the conventional process for preparing the shallow crystal and yellow crystal bead blank, the invention provides the preparation method of the shallow crystal and yellow crystal bead blank, wherein in the method, the lead oxide is notneeded in the raw materials, and the crystal bead blank has good physical and chemical properties, proper hardness and strong corrosion resistance. The method is technically characterized in that: the shallow crystal and yellow crystal bead blank comprises the following raw materials in part by weight: 50 to 65 parts of quartz sand, 2 to 20 parts of titanium white powder, 2 to 10 parts of sodium carbonate, 1.6 to 13 parts of potassium carbonate, 0.3 to 3 parts of potassium nitrate, 0.1 to 5 parts of cerium oxide, less than or equal to 6 parts of boric acid, less than or equal to 2 parts of aluminum hydroxide, less than or equal to 8 parts of zinc oxide, less than or equal to 10 parts of strontium carbonate, less than or equal to 15 parts of barium carbonate, less than or equal to 2 parts of lithium carbonate, and less than or equal to 2 parts of potassium permanganate.

Description

technical field [0001] The invention relates to the field of artificial crystal products, in particular to a method for preparing light crystal yellow crystal bead embryos. Background technique [0002] Light crystal yellow crystal bead embryos are semi-finished products used to prepare light crystal yellow crystal products, and there are following deficiencies in the existing preparation of light crystal yellow crystal bead embryos technology: [0003] 1. In order to achieve a higher refractive index, lead oxide must be used as the raw material. It is well known that lead-containing substances will cause environmental pollution; [0004] 2. The physical and chemical properties of crystal bead embryos are not good, the hardness is either too high or too low, and the corrosion resistance is poor; [0005] 3. In the preparation process, iron ions are used for coloring, which has poor product performance, unsatisfactory color light and poor effect, and the iron content of the ...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is aimed at the above-mentioned need to adopt lead oxide in the raw material that exists in the existing technology of preparing light crystal yellow crystal bead embryos, and the rhinestone bead embryos are not good in physical and chemical properties, and iron and manganese ions are mixed and colored in the process. There are disadvantages such as poor optical performance of iron ion coloring and unstable manganese coloring. It provides a shallow crystal bead embryo that does not use lead oxide in raw materials, has good physical and chemical properties, moderate hardness, and strong corrosion resistance. The preparation method of crystal yellow crystal bead embryo