Heat conducting Insulating Alumina Ceramic Disc for Eswl device
Magnetic Shock
Ceramic materials
have been produced for custom practices for centuries but they are
a rather modern development in medical processes and applications.
Used in surgical implants, prosthetics and various medical tools
and devices, medical ceramics change lives. Manufacturers fabricate numerous ceramic medical
appliances from the oxides alumina and zirconia. Some medical
devices, specifically, ceramics-on-ceramics in artificial joint
systems, required various modifications before they became such a
widely practiced—and FDA safe—procedure. Among the latest
products of medical ceramics are electronic implantable ceramic
sensors, a blend of medical processing and modern technology.
Medical Ceramic Applications
Some common applications include:
- X-ray tubes
- Pressure sensors
- Dental screws and bridges
- Femoral head implants for hip replacement
- Hand tools
- Valves
- Filler
Alumina Ceramics
Alumina is generally composed of an aluminum and oxygen compound and is
employed in medical ceramic applications because it is typically
well tolerated by body tissue. It is also suitable as a surgical
implant because it is a very tough and hard material, and does not
wear easily. Alumina is generally composed of minuscule tightly
packed crystals. The composition results in a ceramic product that
is fracture resistant, which is crucial to safety as well as the
maximum wear of an implant.
During the initial production of alumina medical ceramics in the
1970s, the crystals were arranged more loosely, susceptible to
breaks and fracture problems in the medical implants. The hot isostatic pressure process is used to prevent such structure flaws. Also, each
manufacturer inspects the individual products before they are
employed as medical devices.
Hot Isostatic Pressure (HIP)
The hot isostatic pressure process improves the physical structure
and capability of ceramics by extracting impurities from the
material via application of an inert gas. Once the parts are dense
enough from the gas exposure, (usually processed in a chamber) they
are suitable for medical applications, though all products are
inspected before they are supplied to medical resources.
Injection Molding Technology
Injection molding is a process that involves producing parts
(usually metals and ceramics) that are intricate in design, such as
dental brackets. This process is executed by molding machines, and
numerous devices are capable of being produced in a short
time-frame. Injection molding is considered a good alternative to
previous processing, as standard stamping and machining techniques
of the past took more time and expense.
Alumina ceramic screws/nuts and bolts are used in applications
where conventional metal or plastic components will not work.
Ceramic nuts and bolts are strong, rigid, non-magnetic and operate
at high temperature and in corrosive environments.
Alumina Properties sheet :
| Items | Unit | 95% Al2O3 | 99.5% Al2O3 |
| Density | g/cm3 | 3.7 | 3.9 |
| Flexural strength | MPa | 313 | 340 |
| Compressive strength | MPa | 3400 | 3600 |
| Modulus of elasticity | GPa | 350 | 380 |
| Impact resistance | MPa·m1/2 | 4 | 5.1 |
| Weibull modulus | m | 10 | 10 |
| Vickers hardness | HV0.5 | 1800 | 1900 |
| Thermal conductivity | W/mk | 24 | 27 |
| Highest application temperature | °C | 1600 | 1750 |
| Volume resistivity at 20°C | Ω.cm20 | >1014 | >1014 |
| Dielectric strength | kV/mm | 20 | 25 |
| Thermal expansion | X10-6/K | 5.0-8.3 | 5.4-8.3
|
Product features :
High strength and no harm to healthy
2. High heat resistance : Alumina ceramic has excellent thermal
stability,which means that it is
widely used in areas where resistance to high temperatures is
essential.
3. Good wear resistance : Alumina ceramic is the material of choice
for alumina wear parts.
4. High Strength not easy to break
5. Glazed and polished surface very nice looking
Company Introduction:
We ( Dongguan Mingrui Ceramic Technology Co., Ltd ) are a
professional manufacturer specialized
in R&D, manufacturing and selling customized all kinds of high
precision zirconia and alumina ceramic parts . Our main products
include ceramic rod , ceramic tube, ceramic plunger, ceramic valve,
ceramic plate, ceramic shaft and bearing , ceramic nozzle etc ,
which are mainly used in industrial fields of Machinery,
Petrochemical oil and gas, Valves, Automotive, Food Processing,
Fluid Handling, Process Control, Thermal Processing, Aerospace,
Defense, Eletronic and Electrical, Textile, Mechanical,
Engineering, Mineral Processing, etc.
We have a full service include mold design and development ,
ceramic forming , precision machining
and precision detection technology. We have achieved great
successes in particular requirements
which is based on cooperating with Tsinghua University and getting
rich experience by our professional technical engineer teams . Our
factory have an unique technical called mirror polishing which
improve
our products more smooth , bright than other competitors.
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 do 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.
Our equipment :
