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+33 (0) 1 60 17 60 60
+33 (0) 1 60 17 33 44
7doloy@micronor.fr
62, Boulevard Beaubourg
Parc de la Francilienne
Lots 13
77184 Emerainville France

Micronor 7 DOLOY, spécialiste du scellement hermétique depuis 1950. : Scellement Verre-Métal, scellement Verre-Titane, brasages Céramique-Métal, Saphir-Titane, Saphir-Kovar.

Micronor products

PROTOTYPES, SMALL AND MEDIUM SERIES

Since Micronor 7 Doloy is frequently used for prototypes before going into production, the list of products proposed below is not exhaustive (small and medium series of “standard” products).

On request, the models can receive any type of coating (nickel plating, gilding, silver plating, tinning, etc.) made by our Micronor TS-Industrie division.

UNITARY HERMETIC INSULATING SEALS

Technologies: Glass-Metal Sealing, Glass-Metal Compression Sealing, Glass-Titanium Sealing and Ceramic-Metal Brazing

Materials (non-exhaustive list): Dilver P1 (Kovar), Iron Nickel Alloys, Stainless Steel, Titanium, Ceramic, Steel, Inconel, Copper

Fields of application: all the equipment to be protected in a hermetic housing: transformers, capacitors, relays, rectifiers, etc.

 

For example, unitary hermetic insulating seals in stainless steel or steel, are used for environments subjected to pressure.

Traversées unitaires hermétiques
Traversées isolantes hermétiques multipassages

MULTI-PASS HERMETIC INSULATING SEALS

These models are very diverse and the shapes and coatings very specific.

Technologies: Glass-Metal Sealing, Glass-Metal Compression Sealing, Glass-Titanium Sealing and Ceramic-Metal Brazing

Materials (non-exhaustive list): Dilver P1 (Kovar), Iron Nickel Alloys, Stainless Steel, Titanium, Ceramic, Steel, Inconel, Copper

Fields of application: all the materials to be protected in a hermetic housing: transformers, coils, filters, etc, etc.

  • Relay bases: high performance relays for aeronautics, space, gear, etc.
  • Partition seals: parts studied and realised on demand to ensure the hermeticity of partition seals.  Navy, aeronautics, space, nuclear energy, vacuum techniques, etc.
  • Connectors
  • Igniters for Pyrotechnics

 

For example, titanium multi-pass hermetic insulating seals are used in the aerospace industry (embedded products) for weight gain compared to other materials.

MICROELECTRONICS HOUSINGS

Technologies: Glass-Metal Sealing, Glass-Metal Compression Sealing, Glass-Titanium Sealing and Ceramic-Metal Brazing

Materials (non-exhaustive list): Dilver P1 (Kovar), Iron Nickel Alloys, Stainless Steel, Titanium, Ceramic, Steel, Inconel, Copper

Fields of application :

Bowl Shape Power housings
Platform Microwave housings
Flat housings Optical housings
Double-cavity housings  Flange caps
Machined housings Straight caps
Round housings Shouldered lids

By way of example, these housings are intended for military instruments, used in hermetic compartments or for micro-electronic hybrid uses.

SPECIAL HIGH-PERFORMANCE MODELS

Technologies: Glass-Metal Sealing, Glass-Metal Compression Sealing, Glass-Titanium Sealing and Ceramic-Metal Brazing

Materials (non-exhaustive list): Dilver P1 (Kovar), Iron Nickel Alloys, Stainless Steel, Titanium, Ceramic, Steel, Inconel, Copper

Fields of application:

This name, “Special high-performance models”, covers a wide variety of hermetic insulating seals by glass-metal sealing, responding to various technical problems:

  • High pressure
  • High temperatures, requiring the use of closing processes such as brazing, argon welding, electronic bombardment, etc.
  • Cryogenics
  • Amagnetism
  • High voltage
  • High frequency
  • Lightness: Titanium

 

For example, high temperature and high pressure sensors are intended for underwater drilling.

Modèles spéciaux haute performance
Brasage Saphir-Métal

SAPPHIRE-METAL

Technologies: Sapphire-Metal brazing, variant in Quartz-Metal brazing

Materials: Titanium

Fields of application: Portholes (Sapphire-Metal), Scientific Instrumentations (Quartz-Metal)

 

For example, these portholes are used in space or for applications in the field of optics.

CERAMIC-METAL

Technologies: In Ceramic-Metal Brazing, various processes are advised according to the uses:

  • MoMn metallisation
  • PVD metallisation
  • Active soldering metallisation

Materials (non-exhaustive list): Ceramic, Dilver P1 (Kovar), Stainless steel, Titanium, Copper

Fields of application:

  • Insulators
  • Implantable seals
  • Power seals
  • Connectors

By way of example, certain ceramics make it possible to produce parts intended for the medical field, including seals that are bio-compatible and therefore implantable in the human body.

Céramique métal
Micronor 7 DOLOY scellement hermétique

METAL-METAL

Technologies: Metal-Metal Brazing

Materials (non-exhaustive list): Dilver P1 (Kovar), Nickel Iron Alloys, Stainless Steel, Titanium, Steel

Fields of application:

  • Tips
  • Cryogenics

 

By way of example, these may be ground connections, which must be hermetic, on bases in the field of space.