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Brazing Technology
Ceramic Breaks/Isolators
Looking for Ceramic Breaks with
high-performance insulation and airtightness?
Ceramic Breaks, sometimes referred to as "Electrical Isolators" or "Envelopes", consist of metal sleeves brazed to each end of an insulating ceramic tube. Ceramic Breaks are commonly used to introduce fluid/gas into a system and to provide electrical isolation of line components. Our products are used in harsh environments such as high temperature, cryogenic, and high vacuum.
Ceramic Breaks/Isolators (Spiral/Helical Type)
●Long Insulation Distance in spite of Small size
Image of Inner Flow Channel
Cross Section
Ideal for insulating applications in thrusters
- Has a proven track record of being used in thrusters, the propulsion device used in spaceclaft
- Provides long insulation distance despite its small size in environments where space is severely limited.
- The insulation distance can be increased 2~3 times than straight-shaped ceramic breaks/ isolators of the same length.
- Has been used in:
- Thruster
- Etching/Film Deposition Apparatus
- CVD/Sputtering System
Standard Type
Feature
- Air Tightness: 1.0×10-10Pa·m³/sec
- Length of the inside helical: 190mm
Standard Ceramic Breaks For Gas (Spiral/Helical Type)
Customized Type
If the standard type does not fit, we also provide customization service.
We will create a design to meet your requirements.
Please check the applicable size below.
| Applicable Size (mm) | ||
|---|---|---|
| φD1 | L1 | L2 |
| φ8.5~ | Depends on the length of Ceramic part | Depends on the diameter of Ceramic part |
Ceramic Breaks For Liquid
High Resistance to Leakage and Corrosion :
Specially designed for liquid applications.
Our Ceramic Breaks(liquid type) are specially designed for the transmission of liquids.
The inside structure is smooth, which can effectively prevent the liquid from staying inside even when the flow stops. (As the Image below)
The varying thermal expansion of different materials can cause cracks on the surface of ceramics. To prevent the ceramic parts from cracking, many companies will leave a gap on the joint part to relax the thermal stress.
Instead of leaving a gap on the joint, we created a less susceptible design to thermal stress, and our special brazing technology allows our product to be excellent in corrosion resistance to pure water.
Ceramic Breaks For Gas
Ceramic Breaks For Liquid
Specially designed for the transmission of water and/or coolant fluids
Kawaso Texcel’s metallizing technology is excellent in corrosion resistance to pure water.
Evaluation test on pure water compatibility
Material
Ceramics that are metalized and brazed with Ni-plated metal fittings
Test Condition
pure water at 100°C for 200 hours
Result
Metal elution is not observed on the joint parts.
| Content Level (mg/L) | ||||
|---|---|---|---|---|
| CU | Ag | Ni | Fe | Ti |
| 0.2 | under 0.05 | under 0.05 | under 0.05 | under 0.05 |
Use
- Piping for cooling electromagnets in large-scale accelerators
- Piping for delivering liquid helium
Standard Product
Feature
Insulation resistance(MΩ): over 1,000 (at DC500V), Airtightness: 1×10-10Pa·m³/sec
1,500 Volts
Photo provided by RIKEN
In the field of "Nano Science", our Ceramic Breaks (Liquid Type) are used as an integral part of the cooling equipment of Multipole Vending Electromagnest within Synchrotron radiation facilities in Japan.
Ceramic Breaks For Gas (Straight)
Excellent in airtightness & Corrosion Resistance
Our ceramic breaks can keep high airtightness, even in high temperature/ cryogenic environments.
Also, it is highly corrosion-resistant and is suitable for applications like gas delivery.
Use
- Gas tube for film deposition apparatus
- Gas tube for fuel battery
- Gas tube for cooling apparatus
Standard Product
Feature
Insulation resistance(MΩ): over 1,000 (at DC500V), Airtightness: 1×10-10Pa·m³/sec
1,500 Volts
Customized Ceramic Breaks
We design and produce suitable ceramic breaks for your apparatus and equipment.
- By adjusting the shape/material of metal fittings and ceramics, we design the ceramic breaks based on your operating environment and application.
- We can coordinate your requests to change the shape and size of your ceramic breaks to tailor them to your needs.
(extending the creepage distance/provision measures against electrostatic discharge/...) - For the alumina ceramics is In-House made, you can also choose the purity of alumina (92%, 96%, 99%).
Materials
For customized Ceramic Breaks
It is possible to change the material and the shape of fittings(caps/pipes).
| Cap | Kovar | C1020 | Ti | Ni | A1070 | A3003 |
|---|---|---|---|---|---|---|
| Pipe | C1020 / Ti / SUS316 / SUS316L | A1070 | A3003 | |||
Joint of Aluminium and Alumina
Joining aluminum and alumina ceramics is difficult, because of the gap of thermal expansion of the two materials.
However, our special brazing technology enables the bonding of aluminum and alumina ceramics by developing our unique brazing alloy, by which the airtightness can also be guaranteed.
Shape and Size
MAX dimension 400mm
MAX diameter 400mm
Metallized & Brazed Product
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Head Office
1-7-10, Nishi-Honmachi, Nishi-ku, Osaka-City, Osaka, 550-0005 Japan
TEL. +81-6-6532-1301
E-mail. osaka-sales@kawaso-texcel.co.jp -
American Office
Kawaso Texcel USA
(Inquiry from North America)
c/o Pinpoint Marketing Japan Inc.
155 North Wacker Drive, 42nd Floor, Chicago, IL 60606
TEL. +1-312-416-8608<CST 9:00 to 17:00>
E-mail. kawaso.usa@ppmj.com -
German Office (Inquiry from Europe)
Kawaso Texcel Köln Office
c/o OMB VERTRIEBSMANAGEMENT GMBH
Hohenstaufenring 62, 50674 Köln, Germany
TEL : +49-(0)221-2601-6343
E-Mail. koeln-sales@kawaso-texcel.de
