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Solid solution treatment and gas source of zirconia ceramics

Time: 2018-12-08   Writer: mingrui

Solid solution treatment and gas source of zirconia ceramics

 
Zirconia ceramics in the process of production by rolling, drawing and welding of high temperature influence, organization, and mechanical properties of the material will change, serious influence the quality of the pipes, these changes mainly include: cold work hardening phenomenon, namely the crystal in the column to be a column or occurrence of regular staggered, the lattice distortion, form a stress, high, this kind of phenomenon is also called the dislocation.

Because of high temperature and cooling uneven welding stress and the original single middle pig iron ferrite austenite organization, such as carbide heterogeneous organization, to improve the efficiency of production, to ensure that the coil surface light, eliminating residual stress and obtain a single austenite structure, production of high quality coil, online light solid solution treatment must be carried out.

Gas source of zirconia ceramics:
1. Air in zirconia ceramic feeding system and mold cavity.
2. Water vapor generated by evaporation of water contained in zirconia ceramics at high temperature.
3. Gas generated by decomposition of zirconia ceramic products.
4. Some additives in zirconia ceramics volatilize or chemically reflect the gas generated.
5. Air and water vapor mixed in zirconia ceramic feed.
 

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