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Princess Sophia ceramic mugs How to test glazed thermal stability

Ceramic Mug    From:Xinxiang Ceramic Mug Manufacturers    
Princess Sophia custom sublimation ceramic mugs
Test method described in glazed thermal stability. This method is glazed heated in an oven to determine the temperature, and then removed from the oven is placed on a thin aluminum plate at room temperature, and various defects observed in the thus treated tile occur.

Preparation phase: In the tested group of flat glazed or decorative bricks, the random selection of three as a sample. Prepare a 380  380  2.31mm aluminum plate having a uniform thickness, 50mm high with the four corners of the foot support. The oven temperature should be controlled at about 145 .

Test steps. The tile was placed in an oven at a temperature of 145 , when placed glazed to each brick is exposed to the oven atmosphere, preferably glazing face down. 30min later, as soon as each brick will be removed from the oven, lay it on the temperature of 24  thin aluminum. 15min after the check has seamless cracked tile or other cracking phenomenon. Use ink or pigment solution conducive visually, ensuring an oven and the aluminum plate is at the predetermined temperature, the heating and cooling process was repeated five times. Observed in the form of defects.
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