Bone porcelain blank 04

(3) to understand all kinds of ceramic raw materials to product properties is the foundation of ingredients, and the influence of the ceramic is a multicomponent materials, each bone porcelain blank in the contain a variety of ceramic raw materials, ceramic raw materials in the production process and different plays a different role in the structure of the product. Some raw materials constitute the main crystal phase of bone China products, have a plenty of the main source of glass phase, there is a small amount of added content can regulate bone porcelain nature of the product or is good for production. In the bone China ( Bone China) Nature of the product, some can match each other, some restrict each other. Using a variety of bone China raw materials formula helps control the performance of the products, manufacturing stable bone porcelain products. (4) formula should meet the requirements of production process. Bone porcelain blank need to be able to adapt to the requirement of forming, drying and firing of billet requirements and stable performance, good formability, drying and burning performance, ease of production. (5) the bone porcelain rich raw material source of hope, stable quality, convenient transportation, the price is reasonable. Should also be stressed that local materials, quantity of material use, make wrong, caused harm to environment and human body. These are the bone porcelain production of high-quality, low cost, the basic conditions of environmentally friendly bone porcelain products. Determine the formula of step according to the above principles to determine the formula production steps are as follows ( 1) The collection of basic data (1) the performance requirements and characteristics of bone China products, determine the basic production process. (2) the analysis of the existing production equipment and production condition, to determine process conditions, analysis of the factors, determine the methods of production. (3) examine the raw material, understand bone China raw material origin, reserves, quality quality, transportation, price and supply stability, and so on and so forth, preliminarily determine bone porcelain raw materials. (4) the analysis and determination of bone China some performance of raw materials, mainly including chemical composition, plasticity, combination, sintering, whiteness after burn, and intensity of color, drying shrinkage, drying, sintering shrinkage and residue after burn, the change in the process of heating ( Differential thermal analysis) And environmental friendly, etc. , to determine bone China, including the selection of raw materials. (5) according to the existing data and experience for the future production is likely to have a preliminary understanding of issues. ( 2) Choose preliminary formula (1) on the basis of holding data, choose the preliminary formula. Reference to predecessors' experience, first determine the dosage of bone powder, feldspar, etc, according to clay ceramic raw material performance, preliminarily determine 3 ~ 5 formula for forming and burning test, determine the basic formula (2) to compare good of preliminary formula, trial and error, after has the ideal results, to the test. ( 3) Small and pilot, according to preliminary experiment was carried out, master good formula, after the success of the test, plus a lot of pilot. To can test the bone China products, and determine the formulation of beautiful composition, process control parameters, expand after test, determine the parameters for the production plan and related technology. ( 4) Determine the formal production formula on the basis of the above test, repeated many times, performance of repeat performance is good, choose formula for production. Did not conduct pilot formula, no special circumstances can not be put into production. Preparation method of empirical method of porcelain production has a long history, bone China, Bone China) Production also has a history of more than 200 years, our predecessors accumulated lots of experience were summarized. In the bone China ( Bone China) Production enterprises, to make a recipe, often do not need to visit fortune-teller figure or through bone porcelain glaze type calculation of normal calculation methods and steps, and with the practical experience can be briefly to formulate a series of experimental formula, bone porcelain body formula, for example, the steps below. — Bone China hotel gift to be continued. 。 。 。 。 。