Main production of fire assay crucible,alumna ceramic,zirconia ceramic.Also accept OEM and ODM.
Language
Main production of fire assay crucible,alumna ceramic,zirconia ceramic.Also accept OEM and ODM.
Cupel is a kind of porous refractory ware used to absorb lead oxide (or bismuth oxide) when ash blowing lead buckle (or bismuth buckle). During ash blowing, lead is oxidized to lead monoxide (PbO), most of which is absorbed by the ash dish. Gold, silver, platinum, and other precious metals form aggregates in the cupel, which are then used to determine their precious metal content. Cupel are usually made of magnesium oxide, ashes, Portland cement and other materials. In the gold and silver test, typical ash blast furnace temperatures are 900 to 1000°C, but can vary with technology, air flow, and ash dish material. Cupel is the last and most important step in the process of gold testing by fire. Therefore, the quality of the grey dish is extremely important.
We are committed to producing the best quality products at the most competitive prices. Therefore, we sincerely invite all interested companies to contact us for more information.
BETTER TOUCH BETTER BUSINESS
Contact: Fanny
Tel.: +86 13975373343
Email:fanny@llxtl-china.com
WhatsApp：0086-13975373343 
Company address: Shentan Industrial Zone, Liling, Hunan, 412200
Copyright © 2022 Liling xing tai long special ceramic co.,ltd All Rights Reserved.
