China Ceramic Alumina Tube manufacturer

Water Purification Systems Alumina Based Ceramics Body High Chemical Resistance

Product Details:
Place of Origin: Hunan, China
Brand Name: Jinghui ceramics
Certification: RoHS, REACH, ISO
Model Number: JH.MCI.016
Payment & Shipping Terms:
Minimum Order Quantity: 10 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 Body 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

High Purity Alumina Metallized Ceramic Body for Water Purification Systems

Main features of Metallized ceramic body

● 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

Description of  alumina metallized ceramic body

In connection with ceramic and metal parts in the water purification systems by means of brazing, a metallic coating us applied to deposited on a certain surface of ceramic components. The silver plating is recommended because of its excellent brazing performance with solder.In order to meet the tight-fitting need, we will proceed with all dimensions by CNC machining, then it could get an ideal fitting between assemblies.

We supply a number of many custom refractory metallized alumina ceramic bodies for using in gas discharge tubes, high current feedthrus, x-ray tubes, and similar applications where ceramic-to-metal, ceramic to ceramic seal joints of superb bonding strength and hermeticity are required.

Our facility specializes in molybdenum/tungsten thick film metallization on 95% alumina ceramics. Also, we metallized high purity alumina, like 99% alumina, zirconia, and beryllia. We utilize electro or electroless nickel/silver/gold plating as the preferred deposition over metallization. The result in a system easily brazed with copper-silver, pure copper, gold and other common braze alloys.

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 

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 isolators

We also produce lots of different types of metallized ceramic cylinders for electron tubes, vacuum interrupters, vacuum breakers. 

Water Purification Systems Alumina Based Ceramics Body High Chemical Resistance 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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