Wednesday, July 16, 2008

The difference between pottery and porcelain

Pottery forming: the first in clay containers outsourcing Tu, Yong Shounie in shape, about 5,000 years ago, our ancestors had invented the mud of the build-law. That is affordable to the wet and dry Clay-scrubbing, from bottom to top into a circular disc containers, the first decoration method is limited to hand-Moping. In 4000 before the Longshan culture, has invented a slow round, that is dug in the ground Tung, installed into the top of a set of wooden sticks, wooden turn up. Slow initial round is primarily used for forming the modified blank Tao, the Tao rotating billet can be Scraping more thin, more evenly. Can To say that this is the first human master the most simple machinery. After the invention of another round of fast, fast round is primarily used for casting, until now some small ceramic kilns also use this method molding. With A ceramic technology improved gradually, gradually increasing modification methods, especially after the invention of a slow round, so that the pottery wall is thinner may be more evenly, in order to aesthetics, is also subject to the basket on Tu Tao mud into the Enlightenment, pottery on a basket pattern, I profile, Jomon, and other ornamentation, but also useful in pottery, polished pebbles, smooth or paint. There are many ways of burning kiln. Initially should be roasted in the open-Chai, which is the most primitive method of firing pottery. After the modification of Wang Tao Yao-point, that is digging the ground, used to put Tao Blank, a now In the kiln room, next to a re-dug pits, specialized Shaohuo, between the two pits dug a Zhaidao the same, that is now the Fire Road, Kiln Road between the fire room and placed operator, this is very Taoyao than before Major progress, firepower relatively concentrated, high temperature and uniformity. With these two pottery kilns burning, can improve the quality of pottery. To the Warring States Period, when the Han Dynasty, also invented the Long Yao, the kiln up along the slope repair, 10 meters or tens of meters long, closed Type, a kiln can be installed more than 100 pieces of blank births; mountains are the back-end chimneys, the middle interval with holes for firewood, burning kiln I below, when the fire burning kiln Shunpo and, like a fire dragon, Hence the name.