Glass-metal sealing - Import export

Mo Mn Ceramic Feedthrough Ceramic Vacuum Electrodes The Ceramic Surfaces for Brazing, the surface must be metallized. Compare to Glass seal, Ceramic seal has exceptional resistance to thermal and mechanical shock as well as corrosion. While it requires more complex manufacturing processes and sophisticated engineering, the price is obviously higher. Advantages of Ceramic-to-Metal Seals * More solid, durable hermetic seal and better electrical insulation * Used for more harsh conditions, such as high and low (cryogenic) temperature, corrosive, high pressure, and high vacuum environments * High mechanical strength, less fracture when applied to high vibration and high g-load conditions * Shows strong bond and an excellent seal with metals and alloys, such as copper and Cu alloys (CuNi) and to nickel and Ni alloys.

Ceramic-to-Metal Seal The Ceramic Surfaces for Brazing, the surface must be metallized. Compare to Glass seal, Ceramic seal has exceptional resistance to thermal and mechanical shock as well as corrosion. While it requires more complex manufacturing processes and sophisticated engineering, the price is obviously higher.

Copper 102 is an oxygen-free copper with extremely high electrical conductivity and good formability. These characteristics make it particularly useful for electrical connectors. Copper 102 can be deep-drawn from the annealed temper.It is corrosion resistant in normal atmosphere and water. A thin adherent oxide film forms at elevated temperatures which prevents particle contamination and enhances glass to metal seals. The Copper 102 can be readily soldered and brazed. The absence of oxygen makes welds free of inclusions. Available Sizes: Copper 102 is available from Hamilton Precision Metals as strip product in thicknesses from 0.0005” to 0.010” (0.0127 mm to 0.254 mm) in widths up to 12.0” (304.8 mm). The material conforms to ASTM B 152 and UNS C10200. It is also available in thickness less than 0.0005” (0.0127 mm) in widths up to 4.000” (101.6 mm) maximum.

Our Nickel-Iron alloys are engineered to the ASTM F30 standards for sealing materials and their specified coefficients of thermal expansion. These materials are generally used as the sealing material to bridge the difference between two materials of differing expansion rates during heating and to maintain a hermetic seal. These Nickel-Iron Strip Products are generally used in glass to metal sealing applications ranging from light bulbs to hermetically sealed integrated circuits as well as electrical applications such as switch-gear connections and reed switch systems. Nickel Iron alloys include Invar®, alloys 42, 46, 48 and 52. Others available on request.

Rodar® is an Iron-Nickel-Cobalt alloy with an unique linear thermal expansion coefficient. It is also stable to cryogenic temperatures. This combination of characteristics has prompted its application in electrical package sealing of glass/metal and ceramic/metal. Rodar® can be formed and deep drawn from the annealed temper. A 1/8 hard temper is optimum for heavy piercing.The material can be joined to other metals by welding, brazing, and soldering. The joint design must consider that Rodar® has a lower expansion coefficient than most other metals. Available Sizes: Rodar® is available from Hamilton Precision Metals as strip product in thicknesses from 0.001” to 0.060” (0.0254 mm to 1.524 mm) and width up to 12.0” (304.8 mm). The material conforms to ASTM F15, AMS 7728 and UNS K94610.

An alternative to conductive heat sealing is contact induction sealing, which is particularly suitable for sealing demanding container materials such as e.g. glass, metal or ceramic. An electromagnetic field is built up by a generator via an induction coil that is housed in the sealing head. The molecules of the aluminum foil are set in rotating vibrations, creating heat that is used for the sealing process. Our sealing machines PolySeal Vario PN and PolySeal Vario Twin as well as all fully automatic sealing systems can be equipped with induction technology.

Microcertec has established a partnership with PNL INNOTECH, a french company specialized in glass-sealed hermetic connectors, as well as ceramic-metal and metal-metal brazed components. These products are dedicated to demanding high technological industries, such as: Defence Aerospace Physics Accelerators (Synchrotron, Tokamak, Collider...) Oil Medical Nuclear Environment Principle PNL INNOTECH components are designed to meet harsh environment requirements and product applications, from prototype to large quantities: Glass-sealed and ceramic-metal brazed hermetic connectors (Kovar, S/S, Molybdenum, Inconel, Titanium ...) Ceramic-metal custom built feedthroughs for high current or voltage Microelectronic package and heatsink U.H.V viewports ( Sapphire, Quartz, CaF2, BaF2, Ge, ZnSe ...) Market range, i.e : Microelectronic Microwaves U.H.V components Cryogenics Non-magnetic requirements High pressure Signal feedthroughs Equipment Manufacturing processes are carried out in high...

SEAL FOR GLASSES

Gaskets, seals and technical molded parts made of special elastomers are manufactured using both injection molding and the classic compression molding process.

The Acme T Seal is a fixed length metal seal manufactured in Tin plated steel. The design features a unique double locking action and inspection holes in the lock box which enable the user and security personnel to view the tips of the "T" mechanism within the lock box ensuring the seal has been correctly locked and has not been pre-tampered. This seal cannot be disengaged by intrusion or manipulation, nor can it be dismantled or cut without leaving obvious traces. It can be manufactured in operating lengths of between 10cm to 95cm and is suitable for use in temperatures of -60ºC to 320ºC (-76ºF to 608ºF). Recommended applications Trailers, Tankers, Containers, Rail freight, Refineries, Cash bags, Postbags, Lockers. Material Matt tinplated steel ** Click for more **