Bone porcelain glaze 14

Leaching way according to bone porcelain product shape and size. Empty and small bone China products can be directly use handheld glaze, larger dishes available metal hook hook glaze, such as a lack of glaze or thin, can dip in with hand glaze repair dipping glaze slurry density is 1. 6 to 1. 9g/cm3。 Glazing by dipping method to pay special attention to the following two points: (1) the bone porcelain glaze slurry to keep stirring (2) the bone porcelain slurries to sieve purification before using. Abroad some bone porcelain factory using automatic mechanization glazing glazing machine, high efficiency, but for such as cups, bowls, shi in glaze, prone to glaze defects later. ( 2) Bone porcelain glaze spraying bone porcelain glaze spraying is to use the spray gun or spray glaze slurry injection into droplets to stick on the blank. Bone China billet and the distance of the spray gun, pressure spray glaze, glaze slurry density, glaze spraying time and the temperature of the body determines the thickness of glaze layer, this method is suitable for large, thin wall or complex bone porcelain body shape. Glaze spraying method is characterized by fast speed, high efficiency, small amounts of bone porcelain glaze can also be used for glazing, the disadvantage is that bone porcelain glaze waste more, working environment is bad, need air compressor and spray gun, etc. Bone porcelain glaze slurry density is 1. 7 ~ 1. 9g/cm3。 Abroad some bone porcelain factory using automatic mechanization of glair glaze spraying machine, general is to bone porcelain body heat then rotate spray glaze. ( 3) Bone China pour glaze, watering the glaze is bone porcelain body in a glazing wheels, glaze slurry water in the middle of the body, by centrifugal force makes the slurry evenly spread out. Or make water the glaze glaze slurry through the hemisphere surface flow to the bone porcelain body again. This method is suitable for ceramic disc and single bone porcelain glaze layer ceramic tile or poor body strength were bone porcelain glazing of the products. ( 4) Swinging float glaze glaze applied Yu Zhongkong interior glazed pot, bottle, implements methods pour slurries are artifacts, shaking the slurries on internal evenly and then poured out. Pour over a plasma generally need to rotate the product quickly poured out, the method of requiring high skill of the operators. Have experience in general fast, glaze slurry will be along the wall uniform flow, the glaze layer. Some enterprises homemade hollow inner cavity pour glaze (CCM) interior glazed pot, bottle, ect, the equipment is cheap, easy to operate, but should pay attention to frequently check screen and cleaning, lest appear glaze defects. ( 5) Besmear to brush besmear method is to use brush or brush dipping coating on the surface bone porcelain body. Coating method is not suitable for mass production, more for the same bone porcelain body on a variety of color material, this method is suitable for artistic porcelain or compensating glaze glaze thick layer and operation, the glaze slurry density can be very big. Basic requirements for bone China plain burning body bone porcelain biscuit firing body directly affects the quality of the products quality of glazing. Bone porcelain glazing of biscuit firing billet to strictly chosen before, bone porcelain biscuit firing billet should meet the following basic requirement. ( 1) Better sintering fine bone China body for sintering, no owe to burn or burnt. Biscuit firing billet are not ripe, bibulous rate is bigger, is easy to glazing thicker, defects such as orange glaze, and in the subsequent roast flowers, also can appear the defects such as Fried porcelain black; Burnt bone China products, he appeared bone porcelain glaze bubble defects or brown eyes. ( 2) Good surface quality of billet surface cleaning, no floating, oil stains, alumina adhesive content, etc. , otherwise it will cause to take off the glaze, glaze, ceramic glaze, bubble and pinhole on defects. — Bone China tableware bulk, to be continued. 。 。 。 。 。