Preparation method for basalt ware

Abstract

The invention discloses a preparation method of the black pottery, which is characterized in that yellow clay is selected to be ground, and water is added into the yellow clay so as to mix the yellow clay into mud, then the mud is filtered and deposited to be made into strip shape, and the strip- shaped mud is made into a green body in needed shape; the made green body is shady dried for a first time, modified, polished for a first time, drawn, engraved, polished for a second time and shady dried for a second time, then vegetable oil is smeared on the surface of the green body to process the surface of the green body; after that, the green body is put into the kiln body to be fired; when the green body is fired, a fume material of asphalt is added so that the smoke carbon produced by the asphalt is fully absorbed by the green body inside the kiln body. The preparation method has the following advantages: before the black pottery is fired, the surface of the green body is smeared with the vegetable oil so that fine channels are formed in the green body when the vegetable oil is infiltrated into the green body, and the fine channels facilitate the smoke carbon to be infiltrated intothe green body, thereby making the handicraft of the black pottery black and bright from the inside to the outside; at the same time, the pottery smoked by the smoke carbon formed by the asphalt is colorized evenly and has primitive and simple and natural color with smooth and bright surface and fastened color, and does not have the peculiar smell and impurities of the asphalt; and additionally, the preparation method shortens the firing time and saves the energy.

Description

technical field [0001] The invention relates to a preparation method of black pottery. Background technique [0002] The patent number is: 200410050487.0, CN1600740, a kind of black pottery handicraft and its preparation method. It uses the shale soil and low-temperature clay of Changbai Mountain as the main raw materials, and uses the shale soil and low-temperature clay of Changbai Mountain to mix them evenly. Blank drawing, grinding and engraving include hollowing out, embossing, line engraving and shadow engraving. Wood is used as fuel for firing, and the principle of reducing flame is adopted. The temperature in the kiln is 1000°C-1100°C, so that the iron oxide in the clay is burned by charcoal at high temperature. The black ferrous oxide is reduced for 24 hours, which is the cause of the black color of the black pottery handicraft. The firing method is that the color of the black pottery is not correct, and it is gray-black; [0003] The patent number is: 200610069125...

AI Technical Summary

Problems solved by technology

There are certain defects in this method, that is, the asphalt is in a liquid state during firing, and the odor of asphalt and the soluble substances during asphalt liquefaction are not easy to remove, which affects the quality of black pottery