Z158933

Porcelain desiccator plates, small perforations

plate diam. 190 mm

• 分類程式碼代碼: 41121800
• NACRES: NB.43

属性

• 描述: Diameter of center hole (mm): 20
• 製造商／商標名: Coorstek 66452
• 孔直徑: 23 mm , center; 3 mm
• 板直徑: 190 mm

说明

一般說明

Chemical porcelain has an average coefficient of expansion from 20°C to 200°C is 3.56 x 10^-6, gradually increasing to 4.69 x 10^-6 at 1000°C. To prevent thermal stress cracks on porcelain ware it is strongly recommended a heating/cooling rate not to exceed 200°C/hour. The desiccator plate has Small perforations throughout the plate, and one large hole in center. The plate is glazed on one side and is without feet.

Refractory Qualities
Fusion point: 1670°C
Softening point: 1400°C
Limit of use, unglazed: 1400°C
Limit of use, glazed: 1150°C
Limit of use, evacuated: 1300°C