Industrial ceramic plunger commonly used ceramic materials and how to deal with surface hardening
Industrial ceramic plunger is made of high toughness, heat-resistant ceramics, and has a high degree of corrosion resistance and high quality performance of the ceramic to build manufacturing, so what is the common ceramic material of industrial ceramic plunger?
1. Aluminum oxide ceramics
Aluminum oxide ceramic is a kind of engineering project ceramic for industrial ceramic plunger application. It has the characteristics of high melting point, high hardness, good insulating layer performance and good chemical resistance. It is widely used as continuous high temperature structural material, metal composite material, insulating material and solvent-resistant etching material.
Such as continuous high-temperature kiln furniture raw materials, wear-resistant lining and grinding body, electric vacuum solenoid valve shell and ceramic silicon wafer, the material selection includes paying attention to industrial ceramic plunger, which will continue to be applied to continuous high-temperature flue gas waste heat recovery ceramic membrane material, chemical plant industrial ceramic plunger, fully transparent ceramic electronic equipment lens cover, wear-resistant coating, etc.
2. Zirconia ceramic
High quality industrial ceramic plunger in a variety of hydroxide ceramics, zirconia ceramic high temperature performance is stable, suitable as a ceramic coating and continuous high temperature refractory material.
Zirconia ceramic as raw material of zircon ceramic paste is the main component of high enamel, the thermal conductivity of zirconia ceramics in the more common ceramic raw materials in the low, and the coefficient of linear expansion and metal composite materials are relatively close.
Industrial ceramic plunger into a more important structural ceramic raw materials, special molecular structure, so that it becomes a more important electronic materials, zirconia ceramic ceramic change modification characteristics, so that it becomes a hot topic of plasticity ceramic research subject.
Better mechanical equipment performance and thermal physical properties, so that it becomes a metal matrix composite material in the performance of excellent reinforcement phase, now in a variety of hydroxide ceramics, zirconia ceramic ceramic use only aluminum oxide ceramics.
Industrial ceramic plunger is made of high toughness, heat resistant ceramic, and has high corrosion resistance and high quality performance of ceramic manufacturing, so industrial ceramic plunger should be how to deal with surface hardening?
Surface Curing Treatment of Industrial Ceramic Plunger
1. For shot peening treatment of industrial ceramic plungers, the back pressure of the nozzle for high-precision industrial ceramic plungers shall be ≥ 0.6MPa with 22-mesh diamond sand.
2. GP type airless spraying machine can be used for internal coating with plasma spraying equipment, with spraying rate of 600 m/s, operating temperature <800 ℃, particle size distribution of 200-320 mesh, and powder ratio of Ni and AL spraying materials of 95: 5.
3. GP type airless spraying machine is used for ceramic painting with plasma spraying equipment, with a spraying rate of 600 m/s, a powder size distribution of about 20-40m, and a powder ambient temperature of> 184 ℃.
Powder Proportion (%)AL2O360.TiO240. or TiO213; or TiO2100. Or AL2O394.TiO22.5.SiO23.5. The coating is 5m each time.
4. Diamond saw blades are used for precision polishing of industrial ceramic plungers. On the grinder, the tool is cut down to 5m each time.
5. Grouting reinforcement of industrial ceramic plunger will infuse the plunger pump in the ring chlorine epoxy resin for 1 hour.
After the industrial ceramic plunger is produced and processed, it is black. The surface of the high-precision industrial ceramic plunger has gloss, and the strength is ≥ HRC60.
The use of industrial ceramic plunger solves the problem of greatly reducing the time of heat treatment and efficiently reducing the unqualified rate. Moreover, the use time of high-precision industrial ceramic plunger is greatly improved due to the wear resistance and corrosion resistance of ceramic itself. It is basically determined that its application time is three times that of metal plunger pump in the past.
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2024-01-02
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