Lead-free iridescent glaze and preparation process thereof
By replacing lead oxide with zinc oxide, potassium sodium and lithium oxide in ceramic iridescent glaze, and adding metal crystal accelerator, the problems of poor glaze durability and excessive dissolution of heavy metals are solved, providing an environmentally friendly lead-free iridescent glaze.
CN119683856APending Publication Date: 2025-03-25LILING GREE CERAMIC TECH CO LTD
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Patent Information
- Application Number
- CN202510094669.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-03-25
AI Technical Summary
Technical Problem
Existing ceramic iridescent glazes have problems such as lead vapor pollution, poor glaze durability and excessive dissolution of heavy metals.
Method used
The preparation process of lead-free iridescent glaze is adopted, by replacing lead oxide to zinc oxide, potassium sodium oxide and lithium oxide, and adding glaze metal crystallization promoter.
Benefits of technology
It effectively solves the problems of poor durability of the glaze surface and excessive dissolution of heavy metals, and provides an environmentally friendly lead-free iridescent glaze.
✦ Generated by Eureka AI based on patent content.
Abstract
The lead-free iridescent glaze is prepared from the following components in parts by weight: 2 to 6 parts of washed soil, 4 to 8 parts of quartz powder, 5 to 9 parts of calcined zinc, 6 to 10 parts of lithium carbonate, 55 to 65 parts of potassium feldspar, 10 to 15 parts of electrolytic manganese, 1 to 5 parts of tungsten oxide and 1 to 5 parts of vanadium pentoxide. According to the lead-containing iridescent glaze, zinc oxide, sodium potassium oxide and lithium oxide (introduced by lithium carbonate) are used for replacing flux equivalent of lead oxide in the lead-containing iridescent glaze, and a glaze metal crystallization accelerant is added, so that the problems that the glaze is poor in durability and the dissolution amount of heavy metal exceeds the standard are effectively solved.
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