Alumina Zirconia Ceramic Parts Components with Special Sliding and
Sealing Characteristics
Product Description:
Valve applications often require abrasion and corrosion resistant
materials with special sliding and sealing characteristics. Ceramic
materials offer superior properties.
Cost-effective production according to your requirements
For use in valve systems, components must be able to withstand
punishing demands and will outperform metals, plastics and other
materials in heavy wear, high temperature and high pressure
applications.
Ceramic gaskets by Rauschert, manufactured for a precise fit,
ground and polished, are ideal for valves and plumbing fittings.
They guarantee a constant flow control and an optimum sealing
function. Efficiency made to order!
ProgramProgram
- Components for industrial mixing plates
- Components for plumbing fittings
- Components for pneumatic valves
- Other components
Properties sheet of Alumina and zirconia :
| Characteristics | Unit | 95 Al2O3 | 99 Al2O3 | ZrO2 |
| Crystal Structure | - | hexagonal | hexagonal | tetragonal |
| Color | - | white | ivory | white |
| Density | g/cm3 | 3.65 | 3.88 | 5.95 |
| Water Absorption | % | 0 | 0 | 0 |
| Young's Modulus | Gpa | 280 | 350 | 205 |
| Vickers Hardness | Gpa | 14 | 20 | 12 |
| Flexural Strength | Mpa | 280 | 300 | 900 |
| Compressive Strength | Mpa | 2000 | 2500 | 2200 |
| Thermal Conductivity | W/(m·k) | 18-25 | 30 | 2.2 |
| Thermal shock resistance | Δ(℃) | 220 | 180-200 | 280-350 |
| Max. Working Temperature | ℃ | 1500 | 1700 | 850 |
| Volume Resistivity | Ω·cm | >10^15 | >10^14 | >10^12 |
| Dielectric Constant (1 MHz ) | - | 9.5 | 9.8 | 26 |
| Dielectric Strength | kV/mm | 16 | 22 | - |
Mingrui Ceramics provide advanced ceramics on critical wear
surfaces of valve plugs to maximize service life.
Specialized Severe Service Plugs to Increase Service Life
Ceramic valve plugs can withstand long periods of severe wear. To
make ceramic plugs more robust, Caldera engineers have developed
proprietary ceramic retention methods that reduce mounting-induced
ceramic tensile stresses. These methods leverage the inherent
ceramic strengths to create a longer lasting plug. These plugs are
found in service worldwide.
Tight-Shutoff Ceramic Plugs
Mingrui provides plugs and seats with Sintered Silicon Carbide
ceramic that meet ANSI Class IV shutoff for vent and various slurry
applications. Caldera’s tight-shutoff plugs allow operators to shut
off flow with the control valve and therefore prolong the life of
expensive isolation valves. Caldera also offers plugs with other
types of ceramic, including zirconia, reaction bonded silicon
carbide, Tungsten Carbide, and others.
Innovation in Plug Design
Mingrui uses finite element analysis and other tools to assess
existing valve plug designs and evaluate design alternatives. One
such alternative is the flat plug (as compared to the parabolic
plug), where the flat plug has shown greater erosion
characteristics and prolonged valve life.
Advantages of flat plug:
- Improved toughness due to simpler ceramic shapes and less ceramic
volume.
- Proven flow characteristic through field experience and laboratory
testing.
- Increased durability through effective mounting designs.
- Split clamp retention allows for easier repair of plugs.
1. What kind of industry ceramics do you have?
We specialized in 95% 97% 99% alumina ceramic and zirconia ceramic
parts.
2. What kind of molding method can you supply?
Dry Pressing, isostatic pressing, grouting, hot-chamber die
casting, tape casting, injection molding, etc, injection molding
and isostatic molding is the most commonly used.
3.What stabilizer do you use when processing?
Yttria stabilizer is the most commonly used in our industrial
ceramic parts.
4.Can you produce free samples for me?
Yes usually, we can produce free samples for you but it is up to
the product complexity .
5.What terms can you accept for payment?
T/T, L/C , Western union , Money Gram and Paypal is welcome , but
paypal and western union only for small-sum payment.
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