|Place of Origin:||Hunan, China|
|Brand Name:||Jinghui ceramics|
|Certification:||RoHS, REACH, ISO|
Payment & Shipping Terms:
|Minimum Order Quantity:||10 Piece/Pieces|
|Packaging Details:||Vacuum packing with desiccant|
|Delivery Time:||4~5 weeks|
|Payment Terms:||T/T, Western Union, MoneyGram, Paypal, , L/C|
|Supply Ability:||20000 Piece/Pieces per Month|
|Product Name:||Metallized Ceramic Insulator For Vacuum Interrupter||Material:||Alumina Ceramic|
|Color:||Pure White||Shape:||Ceramic Cylinder, Ceramic Tube|
|Size:||Size Customized||Type:||Ceramic Parts|
|Metallization Type:||Mo-Mn Metallization As Base Layer||Outer Plating:||Ni, Au, Ag Further Covering|
|Certificate:||ISO9001:2008/SGS/ROHS||Usage:||Joint From Ceramic To Metal|
thermocouple protection tubes,
ceramic vacuum interrupter
Large Diameter Glazed 96% Al2O3 Alumina Ceramic Body for Vacuum Interrupter
In order to achieve the bonding between ceramic to ceramic, ceramic to metal parts, a thin layer of metal is applied to the ceramic parts' surface, then it can achieve the application. Currently, we are dealing with Molybedum-Maganese (Mo/Mn) and Tungsten (W) as typical metallization with veteran experience and abundant know-how.
Our factory focus on produce a variety of metallized ceramic components, including metallized ceramic tube, metallized ceramic bases, metallized ceramic spacer, metallized ceramic substrates and so on.
|Material||96% alumina||99% alumina||99.5% alumina||Zirconium oxide||Beryllia oxide|
|Shaping methods||Hot pressing||Dry pressing||ISO pressing|
|Dimensions||OD up to φ300mm||Length up to 500pcs|
|Nominal tolerance||OD: ±0.10mm||ID: ±0.20mm||L: ±1mm|
|Surface treatment||External surface glazed||Internal surface polished|
● Ceramic body + Silver (Ag) plating ● Ceramic body + Molybdenum-Manganese ( Mo-Mn) metallization
● Ceramic body + Molybdenum-Manganese ( Mo-Mn) metallization + Nickle ( Ni ) plating
● Ceramic body + Tungsten ( W ) metallization + Gold ( Au ) plating
1. Exceptional bonding/brazing strength up to 150MPa/mm2 2. Superb low leak rate below to ≤1×10-11 Pa•m3 / s
3. High mechanical strength up to 320MPa at least 4. Electrical insulation strength up to 18KV. DC at least
5. Extremely anti-corrosion and free of rust forever 6. Can work under high temperature up to 1450℃
|Fracture toughness||Mpa m 1/2||4-5||3-4||6.5-8|
|CTE (20-800℃)||1×10 -6 /℃||6.2~8.0||5.0~8.0||8.0~9.5|
|Thermal conductivity (25℃ )||W/m.k||29||24||3|
|Specific heat||1 x 10 3 J/(kg·K)||0.78||0.78||0.46|
|Electrical||Volume resistivity (25℃ )||ohm.cm||＞1 x 10 14||＞1 x 10 14||＞1 x 10 11|
|Dielectric constant (1Mhz)||(E)||9.5||9.5||29|
We could produce lots of different types of metallized ceramic cylinders for electron tubes, vacuum interrupters, vacuum breakers.
1. Vacuum packing with desiccant as an inner package;
2. Then, exported carton as an outer package.
3. Finally, it will be packed with a wooden case if needed.
4. We regularly use DHL, UPS, FedEx, and TNT to ship small parcels.
5. For large volume orders, we could ship it by sea as per customers' needs.
Q1: Is it available to produce customized products?
A: We always support custom-made metallic coated ceramic insulators as per different dimensions, designs, metallization, and platings.
Q2. When can I get the price?
A: We regularly quote within 24 hours after we get your inquiry. If you are in urgent need of getting the price, please call us or tell us in your email so that we will proceed with your inquiry as a priority.
Q3. How long can I expect to get the sample?
A: After you pay the sample charge and send us confirmed files, the samples will be ready for delivery in 4 weeks. The samples will be sent to you via express and arrive in 3-5 workdays. You can use your own express account or prepay us if you do not have an account.
Q4. How long does the whole procedure being worked out?
A: After you place an order, the manufacturing time is about 25 working days.
Q5. How to ensure quality?
A: The dimension out of any batch will be carried out sampling inspection per International AQL standard. A 100% cosmetic inspection will be done.
Q6. Are you a factory or trading company?
A: We are a professional manufacturer. We are warmly welcome clients from worldwide to visit our factory and cooperate with us.