Sgj Ceramic Feedthrough Insulator, Ionization Chamber, Metallic Ceramic Sealing, Flange Ceramic Electrode, Glazing Ceramic Tube

• Customization: Available
• Type: RFI Filter
• Transfer Function: High Pass
• Model NO.: Ceramic Tubes
• Certification: Sgj
• Transport Package: Individual Packing
• Specification: Non-Standard
• Trademark: SGJ
• Origin: China
• HS Code: 6914100000
• Production Capacity: 100000sets Per Year

Product Description

Ceramic Metal Seal Assemblies
SGJ Ceramic Feedthrough Insulator, Ionization chamber, Metallic ceramic sealing, Flange ceramic electrode, Glazing ceramic tube
 

Materials	Al2O3	SiO2	CaO	MgO	Others
Ceramic Contents	96%	1.60%	1.00%	1.00%	0.40%
Thermal Conductivity	0.4Cal.Cm.S.ºC
Volume Resistivity	1x10^13Ω.Cm
Metallization Material	Mo-Mn metallization
Metal Surface Treatment	Nickle plating
Ceramic Surface Treatment	Glazing
Leak tightness	1x10^-11Pa.M^3/S
Power Voltage	DC 1100V
Power Current	200 A
Temperature of molybdenum wire furnace					1650 ºC
Bonding strength of metallization layer and ceramic					360 Mpa
Bonding strength between metallization layer and metal part					45000 N

Designed Water Cooled Feed Through by SGJ-International (Shaanxi Sgj International Co., Ltd.)

Code	Parts	Materials	Note
A	SS Adapter	SS 304	Stainless Steel 304 Coated with Nickel
B	Sleeve	Kovar 4J33	JIS Code KV-4(Ni33Co17)
C	Ceramic Tube	96% alumina	Ends metalizing thin layer of  Molybdenum
D	Cap	Kovar 4J33	JIS Code KV-4(Ni33Co17)
E	Electrode	OFHC Copper	Oxygen Free High Conductivity Copper
X	Brazing Area	Silver+Copper Eutectic Alloy	Complete vacuum brazing

Kovar Alloy 4J33:
Kovar is a Nickel-Iron-Cobalt, controlled expansion alloy. It's expansion characteristics match alumina ceramics. This alone ensures it is a highly popular controlled expansion alloys for hermetic sealing applications (Mainly used in Ceramic Metal Seal Assemblies)

OFHC Copper TU1:
CTU1/C102 is an oxygen-free copper which has better forming, resistance to hydrogen embrittlement, and brazing characteristics than C110 ETP. CTU1/C102 has good solderability and corrosion resistance and is used for high current applications.

Stainless Steel SUS 304L:
SUS 304L Stainless Steel famous for its resistivity, fall under the category of Stainless Steel Tubes. Threaded, Hot Rolled, Cold Rolled, Heat Exchangers, Annealed, Pickled....  All these products belonging to the SUS 304L Tubes catalog serve as the prime building blocks of electrochemical, shipping, construction and gas industries.

Metallized Alumina Ceramic:
Vacuum brazing of ceramic and metal requires metal coating in the welding area of ceramic. It ensures good air tightness of metal and alumina metallized ceramic brazing joint in vacuum environment. We SGJ have our own unique patented solder formula to ensure the stability and reliability of our products...
 The key of Ceramic-Metal structure based on the vacuum tightness, so called sealing. And , Metallized ceramic bonding area Via vacuum brazing technology is the only solution

Follow Products R&D by SGJ-International (Shaanxi Sgj International Co., Ltd.)