Bone porcelain blank 03

Various configurations of the role of bone China raw material in the formula to scientific and reasonable bone porcelain body formula, shall be for a variety of bone porcelain raw materials and various oxide knowledgeable in the formula. All kinds of oxides in the role of bone porcelain body formula the role of various oxides in formula is as follows. 1) P2O5: in bone China ( Bone China) , and CaO form calcium phosphate crystals, as the bone China ( Bone China) The skeleton, introduced by bone. (2) SiO2: silicon dioxide is the main chemical composition of bone porcelain blank, by bone porcelain raw materials of quartz, feldspar, clay, is the main component of a China. (3) K2O and Na2O: in bone China ( Bone China) , primarily with quartz glass phase formation, helps the melt role to improve the light transmittance of porcelain, general introduced by feldspar, bone China, Bone China) General use of potassium feldspar. Sodium feldspar because of high temperature viscosity is small, easy to deformation, is generally not used. (4) CaO: in bone China ( Bone China) , and P2O3 form calcium phosphate crystals, as the bone China ( Bone China) The skeleton, introduced by bone. (5) MgO style: in bone China ( Bone China) There are very few in the oxide, such as introducing will dramatically reduce the temperature, a China reduce firing range, is a harmful impurity. 6 Al2O3: is part of the porcelain body skeleton, the kaolin, feldspar, increase the content of it can improve the sintering temperature, chemical stability and thermal stability. All landowners Fe2O3: is impurity, affect the whiteness of the bone porcelain body, often by the poor quality bone porcelain material or with people in the processing, to remove or reduce as far as possible with the use of such minerals. Today TiO2: impurities, affect the whiteness of the bone porcelain body, remove as much as possible to reduce high in the use of such minerals by the poor quality of bone China into the material. Ceramic raw material in the formula to see the raw materials to determine the steps to determine the formula of formula after bone China material selected, the principle of determining various bone porcelain raw materials used in the billet and the glaze is a critical work, the number of because they directly affect the determination of bone China product quality and process system. Bone porcelain glaze formula is one of the fundamental importance, is the basis of the production. Formula design is a very complicated problem, in the bone porcelain after the charge calculation results can be used as the basis for formulation experiment was carried out, and then make adjustment test, and then on the basis of the test decision formula after bone porcelain products. Formula calculation formula and test before, it should be for the use of raw material chemical composition, mineral composition and after burning properties, physical properties and process performance to conduct a comprehensive understanding, at the same time for bone China product quality requirements and performance requirements also want to know, to make a scientific formula, guarantee the formula to obtain the desired effect. When determining the ceramic formula, should follow the following principles. The appearance quality of bone China products, physical and chemical properties, and performance requirements are considered the main basis of billet, glaze composition. Bone China ( Bone China) Request product with high whiteness and transparency, glaze gloss is better, form a complete set of cutlery ware neat, colour and lustre is consistent, has high mechanical strength and beautiful appearance. (2) can be used in the proposed formula of some factory or research experience and data, this section time, help to raise efficiency. Bone China ( Bone China) Has been 200 years of history, has the mature experience of circumference. Ceramic has a long history in our country, there are a large number of accumulation of experience, the specification of either qualitative or quantitative data is worth reference, but because of the difference of bone China material properties and different production conditions, should not mechanically copy. To the bone China ( Bone China) New product formula, can according to the original experiment on the basis of the experience and relevant laws. — Bone China tableware suit to be continued. 。 。 。 。 。