What is a ceramic nozzle？
Time: 2019-01-07 Writer: mingrui
What is a ceramic nozzle？
Ceramic nozzles have a wide range of applications, ceramic nozzles are abrasion resistant and chemical resistant.
The sprinkling effect of ceramic nozzles in agriculture has changed the traditional sprinkler irrigation mode, and the agricultural production has gradually developed towards a technological road. Spray quality of ceramic nozzles and excellent flow accuracy.
Special ceramics are promoted and cultivated by modern production and science and technology. They are "breeding" very fast, especially in the past two or three decades, new varieties are endless and dazzling. According to the chemical composition, there are:
1 Oxide ceramics: alumina, zirconia, magnesia, calcium oxide, cerium oxide, zinc oxide, cerium oxide, titanium dioxide, cerium oxide, uranium trioxide, and the like.
2 nitride ceramics: silicon nitride, aluminum nitride, boron nitride, uranium nitride, and the like.
3 carbide ceramics: silicon carbide, boron carbide, uranium carbide, etc.
4 boride ceramics: zirconium boride, lanthanum boride, and the like.
5 silicide ceramics: molybdenum disilicide and the like.
6 fluoride ceramics: magnesium fluoride, calcium fluoride, barium trifluoride and the like.
Nozzle material - ceramic
The traditional concept of ceramics refers to all artificial industrial products that use inorganic non-metallic minerals such as clay as raw materials. It includes various articles prepared by kneading, forming, and calcining a mixture of clay or clay. From the coarsest earthenware to the finest fine pottery and porcelain, it belongs to its range. The main raw material for it is the silicate minerals (such as clay, feldspar, quartz, etc.) taken from nature, so it belongs to the category of “silicate industry” with industries such as glass, cement, enamel and refractory materials.
Nozzles are a very important part of spray, spray, fuel injection, sandblasting equipment, or even the main components.
The function nozzles according to the nozzles can be roughly divided into spray nozzles, fuel injection burners, sandblasting nozzles, and special nozzles.
Classified by material, it can be divided into metal nozzles, plastic nozzles, ceramic nozzles, and alloy nozzles.
Classified by industry, it can be divided into petrochemical nozzles, agricultural nozzles, textile nozzles, paper nozzles, environmental nozzles, spray nozzles, chemical nozzles, steel nozzles, electronic version of nozzles.
Classified by shape, it can be divided into hollow cone nozzle, solid cone nozzle, square nozzle, elliptical nozzle, fan nozzle, column nozzle, two-fluid nozzle, multi-fluid nozzle and so on.
Special industry nozzles: fire nozzles, catalytic cracking nozzles, Texaco nozzles, granulation nozzles, sandblasting nozzles, etc.
Ceramic nozzle development
Ceramic nozzles are constantly being improved. Mainly improved from both appearance and material:
Shape: The shape of the ceramic nozzle has evolved from the earliest spiral type, large volume, and 2 spray to spiral type, eddy current type and small volume.
Materials: Materials have evolved from oxide ceramics to nitride ceramics and carbide ceramics.
The ceramic nozzles we refer to in our country refer to the following:
1. Oxide ceramic nozzle (refers to alumina and zirconia materials)
2. Nitride ceramic nozzle (refers to silicon nitride bonded silicon carbide material)
3. Silicon carbide ceramic nozzle (refers to silicon carbide, boron carbide material)
Oxide ceramic nozzles have been phased out due to their lower performance than silicon nitride nozzles and silicon carbide nozzles.
The mainstream products in the market are:
1. Nitrogen connection combined with silicon carbide nozzle (white)
The advantage is that the hardness is high, the wear resistance is strong, and there are advantages and disadvantages, and the material is too hard to be a spiral nozzle.
2. Silicon carbide nozzle (black, green)
The advantage is that the hardness is high and the ductility is good, and the spiral nozzle can also be used as the vortex nozzle. Of course, there are advantages and disadvantages, and the wear resistance is relatively poor.