Machinable Ceramic Insulator Tube High Temperature Wear Resistant OEM Service
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Machinable Ceramic Insulator Tube High Temperature Wear Resistant OEM Service
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Brand Name :Jinghui ceramics
Model Number :JH.MCT.008
Certification :RoHS, REACH, ISO
Place of Origin :Hunan, China
MOQ :10 Piece/Pieces
Price :Negotiable
Payment Terms :T/T, Western Union, MoneyGram, Paypal, , L/C
Supply Ability :20000 Piece/Pieces per Month
Delivery Time :4~5 weeks
Packaging Details :Vacuum packing with desiccant
Product name :Ceramic Metallized Tube Insulator
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
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High Brazing Strength Aluminum oxide Ceramic Metallized Tube Insulator
Prime characteristics of ceramic metallized tube insulator:
1. Superb low leak rate below to ≤1×10-11 Pa•m3 / s
2. Exceptional bonding/brazing strength up to 150MPa/mm2
3. Electrical insulation strength up to 18KV. DC at least
4. High mechanical strength up to 320MPa at least
5. Extremely anti-corrosion and free of rust forever
6. Can work under high temperature up to 1450℃
Description of ceramic metallized tube insulator:
We have been producing metallized ceramic vacuum interrupter tube for ages. With our comprehensive in-house manufacturing types of equipment, we support a variety of prototyping needs, also we are capable of dealing with mass production.
All these vacuum interrupters tubes have excellent insulation resistance, high bonding strength, extremely low leak rate in their applications.
Metallization types of ceramic metallized tube insulator:
●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
Specification of ceramic metallized tube insulator:
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
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
Technical properties of materials of metallized ceramics
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 ceramics:
We could produce lots of different types of metallized ceramic cylinders for electron tubes, vacuum interrupters, vacuum breakers.
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.
