| 摘要 |
<p>The invention relates to a process for producing patinated ceramic items. According to the invention, the process consists in sieving, in a ball mill having a sieve with 10000 meshes / cm, a pottery mixture comprising 50...60% common clay, 2.5...3.5% sand, 2.5...3.5% chamotte, 5...7% kaolin, 0.2...0.4% soda, 0.2...0.4% silicate and mixing with 25...35% water, then the resulting paste is poured in plaster moulds and the items are dried in the sun for maximum 24 h, afterwards on the portions subjected to patination there is applied benzine and said portions are rubbed with felt applied on the shaft of the high speed electric motor, then the items are burned in an oven for 3.5...4.5 h at a temperature of 900...1000°C.</p> |
