Ceramic Mug Group
, High temperature porcelain mugs
High-temperature porcelain is called high-temperature porcelain, mainly white porcelain, with transparent glaze as the main glaze. The product has good whiteness and belongs to middle-grade porcelain. The carcass is dense and the water absorption rate is <0.5%. The higher the temperature, the greater the crystal density of the glaze, the higher the strength of the porcelain surface, and it is not easy to produce scratches. The porcelain coffee mug
does not need to be cleaned with oil, and the tea set does not have tea stains. The color is "white" and the white is not yellow. "The good name."
High-temperature porcelain can also be fired at high temperature again
High temperature porcelain is crisper
High temperature porcelain hardness is firmer
The color of high-temperature porcelain is fuller, delicate and crystal clear
Medium temperature porcelain mug factory
It is also called stoneware porcelain. The firing temperature is about 1200 degrees, and the water absorption rate is higher than that of white porcelain, <6%. The white porcelain mug is made of milky white glaze, and it can also be made into colored glaze ceramic mugs of various colors. Slightly lower, it is the best choice for advertising and promoting ceramic mugs. With milky white or colored glaze as the main raw material, the whiteness is dark, and the colored glaze is the main material, which belongs to the middle-grade porcelain.
Production process and characteristics of bone china mug
Bone china, also known as bone china, was produced in England. The academic circles generally believe that the first Englishman to successfully produce bone china was Josiah Spode (1755-1827). Josiah Spode directly mixed the calcined bones with china clay and mineral flux to become a traditional hard porcelain raw material, which was successfully tested in the early 19th century. Then he began to conduct systematic research on the formulation of bone china. At the end of 1821, the ratio of bone ashes to porcelain stone was "standardized". At that time, it was believed that the porcelain produced by using feldspar as a flux and containing 46% of the ashes was the best. Good product.
The sintering temperature is 1200 degrees, and the raw materials contain beef and sheep bone meal. The grade is determined by the content of bone meal. The higher the content of bone meal, the higher the grade. Three characteristics of thinness, lightness and transparency, milky white, belong to high-grade porcelain. With the same mug shape, wholesale bone china mugs are much lighter than white porcelain, stoneware, and strengthened porcelain mugs, and have good light transmittance, showing a natural milky white color, and the sound of a hand clasp is as sweet as a bell. Most suitable for making high-end daily-use porcelain for gifts.
The two basic characteristics of bone china are the essential basis for distinguishing bone china from other porcelains.
Feature 1: The bone char content is over 36% (national standard);
Feature 2: After the second firing (biscuits, glaze firing). According to the bone china standards set by the United Kingdom, it contains 30% of the tricalcium phosphate from animal bones, and the finished product has light transmittance, so it can be called bone china. The American standard is at least 25%.