Gas Discharge Metallized Ceramic Tube Beads Cylinder Shaped Smooth Surface
Brand Name:Jinghui ceramics
Certification:RoHS, REACH, ISO
Model Number:JH.MC.018
Minimum Order Quantity:10 Piece/Pieces
Delivery Time:4~5 weeks
Payment Terms:T/T, Western Union, MoneyGram, Paypal, , L/C
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Location:
Shenzhen Guangdong China
Address:
8th Building, Futing Industrial Park, Zhu village, Guanlan, Longhua, Shenzhen, China
Supplier`s last login times:
within 29 hours
Product Details
Company Profile
Product Details
High Insulation Alumina Metallization Ceramic Beads for Gas Discharge Tube
Specification of ceramic metallization beads:
1. Shaping methods: Dry pressing, hot pressing, Isostatic pressing
and so on
2. Types of metallized ceramic tube: both end open, one end closed,
multiple holes
3. Dimension capability: min. the inner diameter can be 1mm, max.
the outer diameter can be 800mm
4. Raw material: 95~99.5% alumina(Al2O3), zirconia(ZrO2), Beryllia
(BeO) optional
5. Precision process: CNC machining, fine grinding, drilling, laser
cutting and so on
6. Surface treatment: external and internal polishing, glazing and
so on
7. Surface quality: free of cracks, bubbles without any foreign
contamination on the internal and external surface
8.The thickness of metallization : Mo/Mn with 15~40 micros, Ni
plating with 2~6 micros, Ag plating: 20~70um, Au plating: 0.2~1um
Metallization types of alumina vacuum interrupter ceramic tubes
● Ceramic body + Silver (Ag) plating
● Ceramic body + Molybdenum-Manganese ( Mo-Mn) metallization
● Ceramic body + Molybdenum-Manganese ( Mo-Mn) metallization + Nickle ( Ni ) plating
Applications:
High current/voltage feed-through insulators, Headers, High-power
receptacles, Insulating discs, Insulator rings and cylinders,
Precipitator products, Power switches, Traveling wave tubes,
Windows, Power grid tubes, X-ray tubes
Material Data. Sheet
General | Property | Units | 99%Al2O3 | 95%Al2O3 | ZrO2 |
| Mechanical | Density | g/cm3 | ≥3.80 | ≥3.60 | ≥6.0 |
| Water absorption | % | 0 | 0 | 0 | |
| Hardness | HV | 1700 | 1500 | 1300 | |
| Flexural strength | Mpa | ≥338 | ≥320 | ≥1200 | |
| Compressive strength | Mpa | ≥2240 | ≥2000 | ≥1990 | |
| Fracture toughness | Mpa m 1/2 | 4-5 | 3-4 | 6.5-8 | |
| Thermal | Max. service temperature (Non-loading) | ℃ | 1600 | 1450 | 1000 |
| CTE (20-800℃) | 1×10 -6 /℃ | 6.2~8.0 | 5.0~8.0 | 8.0~9.5 | |
| Thermal shock | T(℃) | ≥200 | ≥220 | ≥300 | |
| 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 |
| Insulation strength | KV/mm | 18 | 18 | 17 | |
| Dielectric constant (1Mhz) | (E) | 9.5 | 9.5 | 29 |
Other related metallized ceramic tubes
We produce lots of different types of metallized ceramic components, including ceramic cylinders for electron tubes, ceramic insulators for high-currency feedthrough, ceramic part for X-Ray tube and so on.
Packaging proposal & Transportation methods
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.
FAQs (Frequently Asked Questions)
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.
Gas Discharge Metallized Ceramic Tube Beads Cylinder Shaped Smooth Surface
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