PROJECT FOR A RESEARCH LABORATORY

Project definition

- Custom made crucible
- Powder drying in an argon kiln
- Temperature up to 2300°C
- No powder pollution

Technical response

Machinable graphite selection :
- Up to 2500°C in inert atmosphere
- Purified graphite, 5 PPM

Implementation

- Machinable with standrad tool
- Isostatic graphite, particle size < 0,01 mm, for complex geometry and fine machining

PROJECT FOR AN AERONAUTIC APPLICATION

Project definition

- Need a fire barrier for on-board electronics protection.

- The technical solution must be as light as possible.

- Precision assembly +/- 1 mm.

Technical answer

- Choice of the making of an isollation matress achieving a good fire barrier and dividing by 10 the weight of the previous assembly.

- Customized definition of the mattress according to the constraints.

Implementation

Cutting, assembly and sewing:

- ZETEX silicone fiber fabric

- Garnishing of high temperature fiber web

- Sewing with Kevlar thread

PROJECT FOR A MOLTEN METAL APPLICATION

Optimization of a casting nozzle of molten metal :

- Choice of the most suitable sintered ceramic
- Definition of the geometry according to the constraints of the ceramic pieces

Sintered ceramic, porous zirconium oxide :

- Chemically insensitive to molten metal
- Use at very high temperature
- Resistance to abrasion and violent thermal shocks

Implementation

- Preform isostatically pressed
- Machining of the green part
- Sintering
- Diamond tool machining
- Cracks control on the sintered part

NUCLEAR INSTALLATION APPLICATION

Project definition

Insulating parts machining :
- 700°C
- Radiation
- Mechanical stress
- Electrical insulation

Technical response

Macor vitro ceramic :
- Constant qulity
- 800°C continuous, 1000°C Max
- Electrical insulating
- Nuclear compatible

Implementation

- Macor is suitable for prototypes and small series
- Low cost, machinable with standard tools
- Can be machined in complicated and fine geometries

LABORATORY KILN PROJECT

Project definition

- Part for a thermal treatment at 1200°C in a oxidising atmosphere laboratory kiln
- Big dimensions : Ø 150 mm x H. 300 mm

Technical response

- Dimensions too big to be able to machine from boards without bonding
- Preform with the COTRONICS Rescor 740 ceramic cement
- Machining to obtain the exact geometry (tolerances +/- 0,2 mm)

Implementation

- Reusable PVC mold
- COTRONICS 102MR mold release
- COTRONICS Rescor 740 molding
- Removal for the mold
- Machining

NAVAL SHIP INSULTAION PROJECT

Project definition

- Thermal protection for an exhaust system on an army boat
- Should be easy to use and adjustable for fast repair

Technical response

- ZETEX 400RW can be used up to 600°C, with cement to form a rigid shell
- ZETEX 400RW available in roll, no making an very few tools

Implementation

- ZETEX 400RW cutting
- Wet the product
- Put the product on the exhaust system
- ZETEX 400RW cure in 24h and make a rigid shell

MILITARY PROJECT

Project definition

- Thermal and insulating protection for a spool on a missile
- Need of an aeronautic validated process

Technical response

3 materials involved:
- Calcium silicate core machining
- COTRONICS cement over molding
- COTRONICS epoxy sealing

Implementation

- Material follow up and control block for the calcium silicate machining
- COTRONICS cement degassing and application procedure
- COTRONICS epoxy baking and sealing procedure