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parenting family Ceramic mug Porcelain blanks in the firing process to go through several stages

Ceramic Mug    From:Xinxiang Ceramic Mug Manufacturers    
parenting family wholesale sublimation ceramic mug

Blank firing process, based on the physical and chemical changes in the temperature and blank inside, and can be divided into four stages:

1. The low-temperature phase, the main changes: A reduced weight, increased B porosity. The main role: Exclude embryo residual moisture. Temperature: room temperature --300 degrees oxidizing atmosphere.

2. mesophilic stage, the main changes: A structured water is excluded, oxide B organic, inorganic, and carbon or the like, C carbonates, sulfides decomposition, D iron oxide compounds, E crystal transition..... Main functions: decomposition and oxidation. Temperature: 300-950 C, an oxidizing atmosphere.

3. The high temperature phase (post-fire insulation is high), the main changes:. A oxidative decomposition reaction continues, B form a liquid phase, dissolved solids, C crystallization and the formation of new crystal growth, D molten iron glaze... high body carried reduction reaction E. iron. Main functions: glass into porcelain, temperature: 950 --- firing temperature, and up to the firing temperature, to remain for some time, at this stage, the north is generally oxidized by the strong reduction of the South into a weak reduction.

4. The cooling phase, the liquid crystalline main changes A., B. Supercooled liquid solidification, C. Crystal transition. The main functions: to cool. Temperature: room temperature sintering temperature
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