Pearl polishing method at middle temperature

Abstract

The invention discloses a pearl medium-temperature polishing technology. The pearl medium-temperature polishing technology comprises the following steps that: 1. a polishing material is put into polishing equipment; 2. a rotational speed of the polishing equipment is set between 150 and 180 rmp; the polishing equipment preoperates till a working temperature of the equipment reaches between 50 and 60 DEG C; (3) pearls are put into the polishing equipment; the rotational speed of the polishing equipment is increased to between 200 and 220 rmp and the pearls are polished; the working temperature of the equipment is increased to between 90 and 100 DEG C; (4) the rotational speed of the polishing equipment is declined to between 120 and 150 rmp in order that the working temperature of the equipment is dropped to between 50 and 100 DEG C; and (5) the polishing equipment is closed and the pearls are cooled, thereby completing the polishing of the pearls. Through the polishing equipment, the pearl medium-temperature polishing technology provides different speeds and generates different working temperatures to control the wear degree of a surface layer of the pearls and the working conditions of the polishing material, thereby achieving excellent pearl polishing effect and avoiding the great wear damage to the surface layer of the pearls caused by overhigh working temperature.

Description

technical field [0001] The invention relates to a pearl processing technology, in particular to a pearl polishing method. Background technique [0002] Pearls have attracted many lovers with their gorgeous colors, special pearl luster, and crystal clear and dignified hazy beauty. People also regard pearls as a symbol of innocence, perfection, nobility, authority and wealth. The economic value of pearls is mainly determined by factors such as roundness, size, whiteness, luster, and surface finish of pearls. [0003] Pearl processing technology usually refers to the overall process from pearl raw materials to finished craft jewelry, which includes two stages of primary processing and fine processing. Primary processing is to optimize and improve the raw pearls produced by the farm to meet the requirements of gem-level commodities, thereby increasing their economic value. Fine processing mainly refers to processing for decoration, including styles, shapes, combinations, inlay...

AI Technical Summary

Problems solved by technology

[0007] The invention provides a variable-speed pearl polishing method that solves the problem of unreasonable pearl skin wear caused by the lack of suitable changes in working temperature due to constant rotational speed in traditional pearl polishing processing, and improves the quality of pearl polishing products.