Bone porcelain firing with polished 3

Bone porcelain firing temperature system can be used commonly said firing curve and a list of ways. Firing temperature curve is drawn into a curve in the rectangular coordinate system with time, more intuitive. Temperature control table is to list, according to the temperature and time is suitable for automatic control of the input. Biscuit firing sintering system formulation and control ( 1) To determine the firing system based on (1) bone porcelain body traits in the process of heating change set to burn curve should fully consider these raw material physical and chemical changes in the firing process, according to the change in firing curve adjustment. Such as bone China body formula of the flux, more easy to soft collapse, can shorten the time of heat preservation, in order to avoid deformation or bond. Weightlessness in to the bone China billet were analyzed, and the differential thermal curve in different temperature range (2) controls the shape of the bone China products, thickness and water content of the influence of such factors as simple shapes of thin-wall small bone porcelain products into the kiln moisture is easy to control, can generally be taken short cycle fast firing. But big products with a thick wall and complex shape heating speed shoulds not be too fast. (3) the structure of the kiln and the way of capacity and loading kiln heating speed besides depends on the bone porcelain blank performance are affected by the degree of furnace temperature uniformity, the effects of fuel properties and kiln density. Using a gas or liquid fuel flat small cross section roller kiln or push board kiln is suitable for rapid firing (4) the types of bone China fuel, burning method and regulating the flexibility of bone China, Bone China) The production of the use of gas or liquid gas fuel, such as general kiln temperature difference is smaller, easy to operate, 2) Sintering temperature system in different stages of the formulation of firing temperature, sintering temperature, holding time and cooling speed is the four characteristic parameters of temperature curve. Temperature curve should be based on the physical and chemical changes of the bone porcelain body. Bone China ( Bone China) The physical and chemical changes in the process of firing. ( 3) Because other bone China ( Bone China) The body of a firing range, can be used in the lower limit of temperature, a China adopt the extended holding time & other; Low temperature slow burn & throughout; Process; Can also be used in the temperature of a China cap, shorten the time of heat preservation of & other; High temperature fast burning & throughout; Process. For big thick bone China products, generally USES the former, some small bone porcelain products which can be used bone porcelain glaze burning system design and control of bone China, Bone China) Generally use the fritted glaze glaze, compared to the raw glaze, volatiles, high temperature decomposition, firing shrinkage small, on the firing control is easier than general raw glaze. But the firing curve. Due to the clay or organic bone porcelain glaze suspending agent, such as composition, so making the firing curve should fully consider the raw material is key to some physical and chemical changes in the firing process, according to these changes to the adjustment of the firing curve. Also give full consideration to glaze of melting temperature, to melt before the start of the bone porcelain glaze, make the volatile components of fully evaporate prevent bone porcelain glaze after closed, and the more volatile substances from the eduction in glaze, and produce bone porcelain glaze bubble defects, this also is many enterprises when making glaze burning curve easy to overlook. Bone porcelain glaze burning heat insulation shoulds not be too long, because the fritted glaze more volatile than the raw glaze, especially lead fritted glaze, high temperature and volatilization, heat preservation is seen too long & other; Dry glaze & throughout; Now. Glaze firing cooled, attention & other; Red is not dozen black & throughout; , not too fast cooling. Other reference bone porcelain body burning system, comprehensively consider the shape of products, the thickness of the kiln structure, capacity, seting mode, fuel, burning method the influence of such factors as to develop. General shuttle kiln glaze burn curve, firing temperature control. — Tangshan bone porcelain tableware suit to be continued. 。 。 。 。 。