Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Firing process of bone-china
The invention relates to a firing process of bone-china. The process comprises the following steps: adding calcium hydroxide and phosphoric acid into a reaction pond, carrying out reaction for 10-15 hours at 60-80 DEG C, filter-pressing, drying and calcining and carrying out magnetic separation to remove iron to obtain synthetic bone meal; adding water into the synthetic bone meal, rock crystal powder, kaolin and potassium feldspar by virtue of a ball mill to obtain powder with the fineness of 250 meshes, filter-pressing the powder to china sheets by a filter press, preparing china sheets into stripes by virtue of a vacuum pug mill, and molding and drying the slurry by machining and molding to obtain a blank; and biscuiting and glaze firing to obtain the bone-china. The process has the advantages that the firing process is simple; raw materials are easily available and low in cost; the product is stable in quality; besides the characteristics of the bone-china fired by common animal bone black, the fired bone-china further has the characteristics of high whiteness, good transparency and high heat stability; the whiteness of the synthetic bone black is greater than or equal to 90 degrees, the transparency is greater than or equal to 45%, and the heat stability is that at 180 DEG G, the bone-china put in water at 20 DEG C for heat exchange three times is not cracked.
Firing process of bone-china
The invention relates to a firing process of bone-china. The process comprises the following steps: adding calcium hydroxide and phosphoric acid into a reaction pond, carrying out reaction for 10-15 hours at 60-80 DEG C, filter-pressing, drying and calcining and carrying out magnetic separation to remove iron to obtain synthetic bone meal; adding water into the synthetic bone meal, rock crystal powder, kaolin and potassium feldspar by virtue of a ball mill to obtain powder with the fineness of 250 meshes, filter-pressing the powder to china sheets by a filter press, preparing china sheets into stripes by virtue of a vacuum pug mill, and molding and drying the slurry by machining and molding to obtain a blank; and biscuiting and glaze firing to obtain the bone-china. The process has the advantages that the firing process is simple; raw materials are easily available and low in cost; the product is stable in quality; besides the characteristics of the bone-china fired by common animal bone black, the fired bone-china further has the characteristics of high whiteness, good transparency and high heat stability; the whiteness of the synthetic bone black is greater than or equal to 90 degrees, the transparency is greater than or equal to 45%, and the heat stability is that at 180 DEG G, the bone-china put in water at 20 DEG C for heat exchange three times is not cracked.
Firing process of bone-china
LIU FU (Autor:in) / WANG LIMING (Autor:in)
06.05.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
An Investigation into Bloating Behaviour of Bone China Body during Biscuit Firing
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An Investigation into Bloating Behaviour of Bone China Body during Biscuit Firing
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