Bone porcelain glaze 13

( 5) For ball mill medium used pebbles as grinding media ball mill processing, due to the glaze in the process of ball mill, there will be a corresponding amount of SiO2 grinding into the glaze, change the ingredients, the corresponding effects on the bone porcelain glaze should be paid attention to in production. Also on the use of diaspore oxide ball mill, should pay attention to the abnormal composition of Al2O3, especially bad sintering alumina ball its wear resistance is poorer, easy to cause bone porcelain glaze firing temperature increase or other ceramic glaze glaze problem with additives to obtain good bone porcelain glaze, ceramic glazing process control is very important. In grain firing porcelain on the bone porcelain body of uniform glazing, need to have good bone porcelain glaze slurry performance. Because most is frit, fritted glaze need to add a small amount of clay mineral or organic material as a suspending agent, to ensure the performance of use need. According to the function points, bone porcelain glaze with additives can be divided into: suspending agent, stabilizer, gelling agent, defoamer, flocculating agent, chromogenic agent, etc. According to the types of suspending agent, can be divided into clay minerals content of suspension method and organic matter suspension method two kinds big. ( 1) Clay minerals content method commonly used in suzhou and elutriation longyan, master of clay raw materials as a suspending agent, 5% ~ 10% and 0. 1% ~ 0. 2% of gum Arabic, carboxymethyl cellulose, etc. , improve the bonding strength of glaze layer, reduce the peeling off in the process of production, loss, etc. , sodium tripolyphosphate and adjust the rheological properties of bone porcelain glaze, and make the bone porcelain glaze slurry more uniform flat and level. ( 2) Organic matter in suspension method generally USES biological polysaccharide, xanthan gum, etc. , function and usage of commonly used additives. Bone China ( Bone China) Is also white fritted glaze, in order to more easily find glazing defects generally add chromogenic agent in glaze slurry, generally choose the hair color, volatile reagent, no residue, no pollution, like grocery red, blue, green etc. Bone porcelain glazing process bone porcelain glaze porcelain is beautiful coat, bone porcelain glaze billet good combination to make porcelain quality improve greatly, the bone porcelain glazing quality directly decides the bone porcelain product appearance quality, glaze burning cannot overcome glazing thickness difference caused by the sensory quality changes color, etc. The different types of bone porcelain products glazing in a different way, better thickness also differ. Bone China ( Bone China) Thickness is commonly 0. 15 ~ 0. 25毫米。 Production often USES dip, spray, casting, rolling, coating and gasification method such as glazing. Bone porcelain glazing method to consider the choice of the following main problems: (1) the bone porcelain product type; (2) the bone porcelain product shape and size; (3) production; (4) production space; (5) labor costs; 6 energy conditions. Glazing methods are as follows, 1) Bone porcelain glaze immersion method bone porcelain glaze immersion method is a common glazing method, its characteristic is the method is simple, high efficiency, high speed, do not waste slurries, do not need special equipment, but this approach to the operation of the glaze slurry performance and operating workers technology demand is higher, with a strong empirical. Bone China ( Bone China) After the biscuit firing, body not bibulous, mainly by adhesion force on the attached blank of slurries. Bone porcelain glaze layer thickness slurries adhesion force, concentration, thixotropy, immersion time and the temperature of the body. Dipping method applicable Yu Dazhong, small bone porcelain products. — The bone plate to be continued. 。 。 。 。 。