| you are: Properties glin as raw materials for pottery
Plastifitsirujushchimi additives are vysokoplastichnye clay, bentonity, and also surface-active substances - sulfitno-barmy brazhka (SDB), etc. купить запчасти хундай акцент не дорого
Glazes represent the glasses used for a superficial covering of pottery. The main raw components of glaze are: quartz sand, koalin, feldspar, salts alkaline and shchelochnozemelnyh metals, lead oxides, boric acid, a drill, etc. apply Them or in a crude kind, or alloyed - in a kind fritty. Lead oxides replace less harmful okisju strontium.
Angob prepare from white or colour clay and put a thin layer on a surface of the yet not burnt product. At roasting angob not plavitsja, therefore the colour surface turns out matte. Angob on the properties it should be close to the basic crock.
The Clay which has been got mixed up with a certain quantity of water, forms the clay dough possessing connectivity and plasticity. At wetting of dry clay the characteristic smell of the humidified earth and heat allocation is felt. Molecules waters (dipoles) are involved between scaly particles kaolinita and rasklinivajut them, causing clay swelling. Thin sheets of water between lamellar particles of clay minerals cause characteristic properties of the clay test. we will flatten out between two pure glass plates a drop of water and now we will feel, as it is hard to tear off plates from each other. However resisting to a separation, plates easily slide at shift, and the sheet of water is played by a role of the greasing facilitating sliding, therefore the clay mixed with water, gives easily formed plastic weight.
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