China Ceramic Alumina Tube manufacturer

Precision Metallized Ceramic Insulator , Ceramic Disc Dimensional Stable

Product Details:
Place of Origin: Hunan, China
Brand Name: Jinghui ceramics
Certification: RoHS, REACH, ISO
Model Number: JH.MCI.012
Payment & Shipping Terms:
Minimum Order Quantity: 100 Piece/Pieces
Price: Negotiable
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

Detail Information

Product Name: Metallized Ceramic Disk 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
High Light:

ceramic wire insulators

,

ceramic standoff insulators

Product Description

Refractory Alumina Metallized Ceramic Disk for High-Vacuum Technology

We offer a great many of metallized ceramic disks for using in many electrical, electronics, high vacuum technology, medical technology, and sensor technology. Both thick film metallization or thin-film metallization is optional as per customers' need.

With in-housing precision manufacturing types of equipment, we are able to proceed with small-size to large-size ceramic components, also we are able to make the flatness and dimensions to be precise via fine grinding.

Metallization  types:

● 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

Special types are available according to customer's drawings or samples 

Main characteristics of Metallized ceramic isolator

● Min. electric resistance and vacuum tightness, and less than 1×10-11 Pa•m3 / s

● High bonding/brazing strength, It can be up to 150 MPa after brazing

● High mechanical strength, flexural strength  can be up to 338 MPa

● High insulation, anti-chemical and anti-aging. It will be free of rust forever

Applications:
Vacuum interrupters, Vacuum circuit breakers, 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 disks

We also produce lots of different types of metallized ceramic cylinders for electron tubes, vacuum interrupters, vacuum breakers. Precision Metallized Ceramic Insulator , Ceramic Disc Dimensional Stable 1

 

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.

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