Bone porcelain glaze defects under 2

( 3) Blue water often should use porcelain spoon stir water in order to avoid precipitation, stabilizing the color code, never can use iron dao seasoning and stir for iron and water to oxidation with water can make the material color black. ( 4) Bone China porcelain glaze layer shoulds not be too thick, painted on the bone porcelain glaze billet, should use glazing glazing spray method, bone porcelain glaze thick about 0. 1 mm to spray glaze when can see the picture contour, stay after bone porcelain glaze covered just see flower surface is advisable. If bone porcelain glaze layer is too thick, the picture is vague and burn too thin and the color is not bright or discoloration. Bone porcelain glaze slurry density 1. 32 advisable too thick because of his bad liquidity effect porcelain face is smooth, too thin for bubble caused by too much water bone porcelain glaze and glaze phenomenon. Bone porcelain glaze spraying, the spray gun head and bone porcelain body keep distance for a 40 & ndash; Between 60 mm, too close to the sprayed is strong, too much water can cause brewing and glaze. Too much will affect the operation speed and the waste slurries. On the plain grey paint spraying, dipping and spray glaze glazing, bone porcelain glaze layer shall be uniform requirements ( 5) Bone China porcelain material due to the toner of manganese, copper, iron, etc, so strict in firing conditions, firing in reducing atmosphere. Nearly a research unit in China, the spinel CO - in high temperature Zn- Si and CO - ZN- A1 blue color agent, on the basis of introducing proper V - 2 v - Si green colored agent and other high temperature to make agent, oxidizing burning ( 1260 - 1280℃) The bone China porcelain material has won initial success. High temperature of bone China porcelain material high black or reddish purple, as far as possible choose kiln. Appropriate to reducing atmosphere, narrowing the range of 2, bone porcelain color uneven meaning: also known as bone China and different thick. Symptoms are: bone China porcelain patterns firing effect can't meet the design requirements. Defects of belonging color is not straight, produced in painting, decals, glaze and firing process. The reason: 1) Make water material, color label, color order is not clear, so in the water, water, concentration, thickness is not uniform. ( 2) Water operation not skilled, pen, water, water to just at the time, otherwise there will be a wave motion and flowers. ( 3) Bone porcelain glazing operation, the different methods of bone porcelain glazing ( Such as: with bone porcelain glaze spraying, bone porcelain glaze, etc. ) And bone China flower face, bone porcelain glaze layer thickness different firing effect is also different thick, into a suite of bone porcelain products loading kiln can affect different species spend the unity. ( 4) Bone China porcelain decal printing quality, such as: printing paper plate embossing lines appear uneven thickness and height, make the different shades of blue and white material color ( 5) When burnt, kiln and temperature can also affect color series. To overcome the way: ( 1) Make water material, should be in accordance with the following methods: use the grinding fine bone China porcelain spoon of wet material, ladle to clean bowl, add water to make then add a large number of water agitation saw a bubble up, dragged to the surface with a clean paper bubble again stir again until no scum bubble. Is the mature makings, clarify them, pour the water to the clinker, add bubble good strong tea juice, use water to make the material, according to the head is strong, is strong, two strong, weak, weak five levels with tea juice. Tea juice is too strong water resistance to water, pen don't open the tea juice too thin running water. Requirements: color standard indeed, color order is clear. According to the design renderings and get worked up into a porcelain sample test, pay attention to moisture evaporation color scale. Levels up to add appropriate tea color code. After using sealed to prevent moisture to evaporate and sundry pollution. — Tangshan bone China household utensils to be continued. 。 。 。 。 。