Bone china manufacturers: the amount of raw materials for the grouting mud for the advertising cup of bone china

Bone China Manufacturers: Selection of Raw Material Dosage for Bone China Advertising Cup Grouting Material Bone powder is the main component and the only source of the main crystal phase of tricalcium phosphate. After the bone meal is finely ground and washed, its pH value must be controlled below 9 without major fluctuations. This is an important parameter, because the pH value of the bone meal directly affects the fluidity and thixotropy of the mud. Over the years, there have been divergent opinions on the amount of bone meal, and there is no accepted standard. Countries and regions have their own different control ranges. The data can confirm that bone meal is the main ingredient. Through the experiment of the relationship between the formula and color of samples 1-13, the following conclusions can be drawn: 1. The amount of bone meal will affect the transmittance, hue and sintering temperature of the porcelain white porcelin dinnerware. 2. The amount of bone meal is proportional to the light transmittance of the porcelain body. This is because when the amount of bone powder is too much, more ρ-Ca3(PO4)2 crystals can be formed in the porcelain tableware body, and the refractive index of this crystal is similar to that of the glass phase, so the light transmission can be improved. 3. Conversion of fluxing and skeleton functions. When the content of bone powder is less than 20%, bone powder acts as a strong fluxing agent in the sintering process of silicate; when the content of bone powder is higher than 40%, bone powder acts as a skeleton; when the content is between 20% and 40%, it acts as a fluxing agent. It has both the role of the skeleton and the fluxing effect is obviously increased with the decrease of the bone powder content, and then the sintering temperature appears a minimum value. At this time, if the bone powder content is further reduced, the fluxing effect will be weakened until it disappears. 4. The change in the amount of bone meal and the change in the color of the porcelain body are more complicated and have a great relationship with the content of other ingredients in the composition. In the bone ash-clay binary system, there is a strong regularity between the color of the porcelain body and the amount of bone powder, but there is no obvious regularity in the multiple systems such as bone powder-quartz-feldspar-clay. Through production practice, it is found that when the ratio of the total amount of clay to the amount of bone powder is above 0.8, the tone of the porcelain body develops towards blue and yellow. Comprehensive considerations: in production, the general bone meal dosage should be controlled at 40%~50%; the introduction amount of kaolin should be controlled at 25%~34%, and the amount of clay should be about 10%; feldspar as the raw material of the flux is the basic group of vitrified porcelain. Quartz raw materials are partially melted into the liquid phase during the porcelain-forming reaction, and the rest remain in the crystalline state and form a framework structure with other crystalline phases. There is no special requirement for the dosage of feldspar and quartz. Practice has proved that quartz not only has a significant increase in the melting degree of high-temperature bone china melt, but also has a more obvious eutectic effect. Generally, 8%~14% is appropriate, as long as the amount can meet the firing temperature and physical and chemical indicators. Just ask. Sometimes a small amount of bentonite can be introduced, but the introduction amount is generally not more than 2%, otherwise it is difficult to decoagulate. The ratio of the above raw materials not only determines the crystal phase composition and structure of the porcelain body, but also has an important influence on the performance indicators of the product. Only in terms of thermal stability, the introduction of quartz, feldspar and kaolin is very important. Guangdong Hosen Ceramic Factory specializes in the production of bone chinaware, specializing in bone china cups, bone china white porcelin dinnerware, tea sets, coffee sets, coffee cups and saucers, gift porcelain, art porcelain white porcelin dinnerware and other high-quality bone china products. A sales-integrated comprehensive bone china unit. Quality-oriented, the brand created by producers, operators and sellers is something we cherish. For products, quality often brings consumers a full range of feelings from the senses to the heart. The quality we value is the top priority of our good products! All employees of the company will develop the entrepreneurial spirit of 'seeking truth and being pragmatic, pioneering and innovativeThe company has built a modern and standardized enterprise. Friends from all walks of life are welcome to visit, guide and negotiate business.
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