With the replacement of the times, the craftsmanship of the purple sand pot is in the process of constantly pushing out. Among them, the three processes of purple sand, sand -paving, and sand pumping are very representative of many purple sand technology. In the late Ming Dynasty, Dabin had used sand adjustment and sand laying methods to enhance the decorative effect of the surface of the purple sand device. I will talk to you today.
Shi Dibin Sand Turning Hat Pot
Dabin model sandwicked dragon button flat pot
The purple sand sand adjustment process refers to adding a variety of sand particles with a certain size and proportion in the processed mud or powder to increase the granular density. (The entire adding process is ready before the pot is made. This is different from the “sand paving” process. The articles in the future will continue to discuss with you.)
When the added particles and base mud belong to the same mineral, it is called the original color tuning; the added particles and the base mud do not belong to the same mineral, which is called heterosexual sand.
In the late Qing Dynasty, Feng Caixia made purple mud -made sand pot
The original sand is added to the original mud. Due to the same quality of the mud, the color of the post -tire quality will not produce a large change, but the particles in the base mud have increased. effect. For example, most of the shrinkage and deformation rate of chopped mud materials are large, which is not conducive to making large works alone. It needs to increase the strength of the body with the method of sand adjustment. This is reduced to reduce the overall contraction and deformation after burning. Yield. Therefore, most of the Zhu Ni large pots seen in modern times are mixed with coarse sand particles or are supported by taunaler (fixture is a powder that is grinded by finished mud). (For some soft particles, the granules need to be burned at 600 ~ 800 ° C to increase the intensity. Otherwise, the granules are easily crushed by the tool during the production process and causing the tail of the device.)
Fan Jianjun Zhu Ni -engraved poetry and painting palace lamp pot
Due to the different color and base mud color and quality of heterosexual sand, different color effects will produce different color effects. If the granularity is more hard, the aftercut meter granules are protruding and rough pear -shaped; when the granularity is soft, the foil table will produce a slight concave dot. (The softer the granularity, the more obvious the recessed point, the mechanism effect of forming an orange peel.)
Therefore, the sand adjustment process helps enhance the plasticity of the mud and enhances the breathability of the body; it can also change the texture and texture of the mud. After the sand is adjusted, the sand content of the pot is high, especially the different color sand adjustment will produce the granular effect of pear skin, but the feel is still moist. The pot friends are playing with this “visual poor”!
To identify whether the purple sand pot on the market is “sand regulating”, just open the pot lid to see if the inner and outer particles of the purple sand pot are consistent? If the answer is yes, it is “sand adjustment”.
As shown below