Chapter 663 High quality and high price, monthly pass)
As a big customer, Chen Xingchen could buy some bottom tank cleaners through special channels.
The most important thing about this batch of mineral materials is the bottom tank cleaning. In addition to this, there are also two relatively rare mineral materials, one is dragon blood sand.
This requires special handling and special use. If you don’t know how to use it, you definitely won’t be able to use it.
First of all, dragon blood sand exists. This can be confirmed. It is not something created by Dingshan people’s will as some people say.
However, the dragon blood sand that Chen Wenzhe and the others bought here is a different concept from the dragon blood sand that most merchants talk about.
Dragon blood sand is a special mineral material from Huanglong Mountain. Why is it special? First of all, its color is very red.
Because the content of iron oxide is extremely high and it looks as red as blood, it is called dragon blood sand.
It actually belongs to the same mineral material as Dahongni, and is produced 50 meters west of Dashuitan, on the north side of Zisha Road.
When we were excavating to build the Zisha Road, we discovered a groove of blood-like mineral material. The mineral layer was very thin, only 15 centimeters thick at its thickest point, and was mixed in among the boulders.
According to analysis, dragon's blood sand contains three times more iron oxide than ordinary purple clay. The firing temperature is lower, and many black stars will appear on the surface at high temperatures.
Here’s the point, dragon blood sand is so good, but it has one biggest drawback.
Dragon blood sand is silty mudstone, which is basically particles and has poor plasticity. Even if it is crushed to a high mesh size, it is extremely difficult to make.
Here, if you want to take advantage of its bright color after being fired, you have to think of a way.
This requires clay training. If it were not for the integration of various skills, Chen Wenzhe would not be able to use this kind of clay.
And the last one is golden section mud, also known as golden section.
The golden section mud is produced in the No. 1 well area in the south of Huanglong Mountain, at the geological level of the Wutong Formation.
The top is the red clay, and the next is the golden clay.
This kind of mud is only about 10cm thick and requires manual collection and digging with a small shovel.
Underneath this layer of golden mud is white pockmarked and purple mud.
Under the squeezing of the formation, the titanium element of the small red mud penetrates into the section mud and symbiosis with the purple mud in the lower layer.
This material existed before and is not a modern invention.
The mud is mixed with purple mud (the purple ones). The purple mud content is very small and it is very tender.
When using a stone mill, it is broken into small particles and mixed in. After grinding, it is passed through a 50-mesh sieve, and water is added to refine it into mud.
This kind of mud is relatively rare and expensive!
Therefore, there are so many products in the market under the banner of golden segment, which is similar to the situation of the bottom segment blue segment.
But basically the low-priced ones are mainly made of chemical materials, with titanium yellow added, and the base is of course also made of external mountain materials.
Such a pot will appear lemon yellow after being fired, which is rather harsh and not soft. The pot is heavy in mud and lacks sandiness.
But the effect produced by the real golden section is completely different.
I have a little experience with these high-end mud materials, good mud materials and poor mud materials. In Chen Wenzhe's hands, the feeling is different.
It's a pity that whether it's bottom tank clear, dragon's blood sand, or golden section, there aren't many of them.
The most popular thing here is clear cement, but the clear cement Chen Xingchen bought is a high-quality mud from purple sand.
This kind of mud is pure purple mud ore, which is directly processed into mature mud. People in the industry generally call it "general mud", and it is a commonly used mud.
Purple sand raw mud has the appearance of stones and has a flaky structure. After being stored in the open air for a period of natural weathering, it can decompose into particles the size of soybeans.
Use mechanical processing to crush it into the required fineness, add water to mix and knead it, and then it will become mature mud.
When firing a purple clay pot made of this clay material, the kiln temperature is generally 1160~1180 degrees, and the shrinkage ratio is about 11%.
This is the original color mud of Huanglong Pass in Dingshan Mountain, Yixing. This kind of mud has very good properties.
Easy to control wet and dry, high stability, reasonable viscosity, and easy to form.
The old mud must be refined, otherwise it will easily produce black edges and flower mud.
The characteristic is that the mud color is mellow and elegant, with a strong literati atmosphere, and the elegance of purple sand can be displayed in both large and small works.
To put it simply, it’s easy to use!
This kind of purple clay teapot becomes more rosy and rosy over time. It is easy to make tea, has good affinity, and is easy to control the temperature, making it easy to brew tea.
After soaking for a long time, it will become more ruddy, simple, ancient and dignified.
Yesterday, Chen Xingchen made a batch of clear cement purple clay pots and the kiln has been started.
After Li Jinli came to the factory, the first thing he saw was definitely the opening of the kiln.
Therefore, when Chen Wenzhe came to the electric kiln, many electric kilns had already been emptied.
It was a coincidence that he came just in time to see a batch of beauty pots made by Chen Xingchen coming out of the kiln.
Of course, this is also because Chen Xingchen is the main force, and most of the works fired in these electric kilns are his works.
The beauty pot is still the same beauty pot. The outer surface has been plastered with clear cement and it has indeed been given a glossy finish.
It's not a simple fire, but with a bit of crystal color, which already has the effect of a precious light.
Picked up a teapot, it looked pretty good.
A high-quality purple clay teapot is undoubtedly what many teapot lovers pursue.
However, many pot lovers do not know much about purple clay teapots and are afraid that they will spend a lot of money and buy a defective product. Not only will they lose face, but their interest in playing with teapots will also be greatly reduced.
Therefore, Yi Niantang is also promoting the identification method of purple clay teapots recently.
In fact, there are many ways to identify a purple clay teapot. You can look at the surface color of the teapot, pour boiling water on it, smell it, touch it, rotate the lid, tap the teapot body and listen to the sound, etc.
Generally, you can learn to judge whether a purple clay pot is made of clay by looking at the starlight, melting point, sand color, etc.
Handmade traces, inner wall seals, and the certificate of the pot maker are also relatively simple judgment factors.
How to distinguish handmade pots, motorcycle pots, and grout pots?
In fact, it is very simple. A motorcycle pot is usually made by rotating a model. From the pot body or lid, you can see layers of car marks, or uneven lines, which can basically determine that it is a motorcycle pot.
For a grout pot, the mud must be made into a very fine "slurry" and more glass water must be added.
Because of this, the cross section of the grout pot is very delicate and has no sandy texture.
Moreover, when it is made, the mesh number is very high and the air permeability is poor, which can be observed by hand touch and visual inspection.
As for chemical pots, they are cheap and have bright and translucent colors. However, these pots are artificially added with chemical raw materials, such as manganese oxide, lead oxide and other harmful substances, which are extremely harmful to human health.
Chemical mud, through some mixing methods, can almost achieve the effect of fake mud, but the price is less than one-tenth of the authentic mud.
Therefore, if you encounter a purple clay teapot that looks good and is relatively cheap, you must be careful.
There must be a reason why people sell it cheaply. In short, no one will do an unprofitable business!
When Chen Wenzhe was inspecting the purple clay, Li Jinli came over.
"How's it going? I think it's well made and can be sold as a genuine sixth-level handicraft."