Dongguan Mingrui Ceramic Technology Co.,Ltd
Model No.: customized
Max Use Temperature: 1500-2200 ℃
Feature: Corrosion Resistance,high Strength
Usage: Ceramic Washers
Name: Refractory Alumina Ceramic Washer
Packaging: wooden box with foam bag
Productivity: 10000 pieces/month
Place of Origin: Dongguan
Supply Ability: 1000000 pieces/ year
Certificate: ISO 9001-2015
Refractory Alumina Ceramic Washer
The forming methods of alumina ceramic products include dry pressure, grouting, extrusion, cold isostatic pressure, injection, casting, hot pressing and heat and other hydrostatic molding. In recent years, molding technology such as pressure filtration molding, direct solidification casting, gelcasting, centrifugal casting and solid free molding has been developed both at home and abroad. Different product shape, size, complex modeling and precision need different molding methods:
1.Dry press molding: the dry pressure forming technology of alumina ceramics is limited to the object with simple shape and the thickness of the inner wall is more than 1mm, the ratio of the length to diameter is not more than 4: 1.
2.Grouting molding: grouting is the earliest molding method for the use of alumina ceramics. Due to the use of plaster mold, low cost and easy to shape large size, complex shape parts.
Mingrui offers you a wide range of production facilities like extrusion, injection moulding, pressing and casting. Depending on product geometry and quantities, we will choose the suitable technique for your products.For the final finishing of the parts we use CNC machining centres, equipped with diamond tools in order to meet high accuracies.
Our aim is to offer the ideal solution for any application. Our engineers therefore offer custom solutions that range beyond our existing product portfolio. With our well-equipped industrial development facilities, we produce innovations that can be rapidly commercially exploited
The range of products we can make is:Alumina ceramic, Zirconia ceramic , Ceramic Dowel pin, Zirconia Positioning pin, Insulating Ceramic Plate,Ceramic roller,Ceramic Blade,Ceramic brackets,Ceramic Disc,Ceramic insulator, Ceramic Rod ,Ceramic Atomizer,Ceramic Nozzle,ceramic necklace, Ceramic Pin , ceramic bushing, ceramic washer, zirconia ceramic plate, ceramic insert, white Ceramic Ring, Ceramic Shaft,ceramic pump, Ceramic Piston, , machinable ceramic, ceramic arms and so on.
The products made by zirconia and alumina products have excellent performances,the properties of our products:
| Properties || Units || 95 Alumina || 99 Alumina || ZrO2 |
| Density || g / cm³ || 3.65 ||3.9||5.95-6.05|
| Water absorption || % ||0||0||0|
| Coefficient of thermal expansion || 10-6/K || 7.9 ||8.5||10.5|
| Modulus of Elasticity Young's Mod || GPa ||280||340||210|
| Poisson's ratio ||/||0.21||0.23||0.3|
|HV Hardness|| MPa ||1400||1700||1300-1365|
| Flexural Strength @ room temperature || MPa ||280||320||950|
| Flexural Strength @700°C || MPa ||220||230||210|
| Compressive Strength @ room temperature || MPa ||2000||2200||2000|
| Fracture Toughness || MPa *m 1/2 ||3.8||4.3||10|
| Heat conductivity @ room temperature || W/ m*k ||18-25|| 26-30 ||2-2.2|
| Electrical Resistivity @ room temperature || Ω*mm2 /m || 10^15 || 10^16 || 10^15 |
| Max use temperature || °C ||1850||2200||1500|
| Resistance to acid alkaline || / || high || high || high |
| Dielectric Constant || / ||9.5||9.8||26|
| Dielectric Strength || KV/mm ||10||10||10|
| Thermol Shock Resistance || △ T ( °C ) ||220||190||280-350|
| Tensile Strength @ 25 °C || MPa ||200||248||260|
| Thermal Conductivity(25℃) || W/m·K ||30||35||3|
We have complete testing equipment and good after-sales service:
we will give you quick response to solve your problems at the first time. we also improved our logistics service system so that you can enjoy a one to one intimate service.Each of our product is elaborately packed to insure it is intact when arriving;We cooperate with professional logistics such as DHL UPS,Fedex,etc.and offer realtime tracking data to our customers in time.
1.are you manufacturer or trade company?
We are a factory with our own workshop located in Chang'an Town ,Dongguan City,which is known as
[The hometown of mould",We have strong precision processing ability and excellent matching manufacturer.
2.Can you provide the free samples?
Yes, we can provide the sample free of charge if we have the stock product as customer's requirements, but the freight is on your side.
3.Can you accept OEM&ODM?
Yes, we can produce the products according to your demand and drawing.