After the completion of forming and processing and paint, works are pottery to the process of drying the natural outdoors to rid the dough from the water that contains it, so as to avoid what could be a health them from cracking during grilling, and turn the dough clay dried impact of warm to article fossilized solid and coherent, and turns the paint to shell solid, too, temperatures are adopted in the Shi-dried mud between / 600 and 1400 ° C / depending on the components of the mud, and the process of Chi cutting ceramic and clay products in ovens vary according to time and place in its architecture and structure, even in the ways of combustion, and means, Valofran primitive a stoves open consisting of a hole in the ground or from space taken by the pottery center materials Almsta him wood, dry grass and manure animals and grilled in the open air, and this method is primitive does not help to obtain outstanding results due to its poor heat and difficult to monitor the grill, to the accompanying These Ala process shall of disintegration, cracking and shattering for some manufactures, and put out the fire and get the products pottery material is used the soil to cool the pieces and smoked at the same time, and this can leave stains brown or black on the surface of pottery so-called product potter in this case Elmaragash or smoker.
The model most commonly used for furnaces thing, is the oven, which consists of the combustion chamber (house fire) that is built above the room thing, and relate to the oven by holes implement them heat to the home where she works on the Chi products mud dried and isolated more often from the mainstream smoke, it is worth noted that many examples of these furnaces have been discovered at the site of Sarafand (Srepta), dig in downtown Beirut, and return to different historical periods from the Phoenician period until the medieval period.
Pottery "clay between air and fire":
After drying products mud in the air, describing the pots in the room thing, located above the combustion chamber in the oven (ie, above the furnace), and must take into account the distribution of the pieces carefully in the oven and the placement of manufactured goods intended for Xi temperatures homogeneous, resulting from the process of firing evaporation of atoms of water remaining in the dough mud, and the burning of organic material where and then turn into solid impact heat of the fire, and give us a Shi-dried mud fire ceramic products mud with the structure of porous brick is called pottery, and pottery as the first products mud roast is a light material density character of mud opaque, resulting in low temperatures ranging from / 600-950 ° C /, and the pottery is divided into three types:
1 - red clay: It includes products thick soft mud or fusion medium, such as agricultural soils and Tainat alkaline, and has produced and used through the ages, particularly in building houses and paving.
2 - red clay ceramics: ranging in color of cream and pale yellow to yellow ceramic, and is made from Tinat alkaline medium fusion Ktainat iron and lime, and applied to blends of simple oxide of lead, kaolin, or Itzjaj Baltmlh, is Almayolica Italian (ie, squares pottery glazed) are simple of this type of pottery which are widely used to cover walls and floors, and the origins of this label back to the Andalusian city of Mallorca, famous for its pottery industry named leafy and lush that earning a name Iorka (Mallorca Maiorca).
3 - white pottery: the latter type of products, pottery, and is one of the finest types of pottery is a little pores, and white color, and is also a more solid types of pottery, and the least intensity and Orgaha in wall thickness, and is made from pulp clay secondary white color, and high fusion, and Chui Crafts, white clay to high temperatures / 1400 degree Celsius /, and advantages of this pottery that he painted in layers of clear glaze, the most famous types of Alvins White, who attributed its origins to the city of Fez in Morocco Arabic, given to connect trade between Morocco and Andalusia and Italy in the Middle Ages.
0 التعليقات:
Post a Comment