Insulation laboratory
Context
Project technical support for insulation and winding of superconducting magnets.
The insulation laboratory is equipped with several technical means allowing for example to :
- design small coils,
- impregnate prototypes or characterization specimens,
- prepare superconducting cables before characterization via the dissolution of aluminum or copper,
- process resins and chemicals, perform characterizations at room temperature.
Technical means
- A winding machine which allows to design coils with different shapes (L ≤ 750 mm, Φ ≤ 400 mm).
- Characterization means :
- Precision weighing scales (mmax = 220 g à 0,1 mg).
- Binocular (magnification x40).
- KRÜSS liquid-solid tensiometer (measurements of liquid density, solid – liquid contact angle, surface tension of solid material, perimeter of solid material with complex shape).
- SETARAM differential calorimeter (measurement of heat capacity, determination of phase transition, polymerisation exothermicity, melting point ..., Tmax = 550°C, 50 mg ≤ m ≤ 100 mg).
- Rhéowin Rotovisco1 rheometer (viscosity and rheology measurements at variable temperature).
- Pycnometer (determination of the volume of a solid body by gas expansion).
- A chemistry laboratory equipped with fume hoods.
- Ovens and furnaces of different sizes (130 l at 200°C under vacuum, 749 l at 300°C, small volumes in controlled atmosphere up to 1100°C, 130 l à 800°C).
- A room equipped with devices certified for use in explosive Atmosphere (Atex) area.
Achievements, related projects
- R&D on the electrical insulation of the CMS solenoid and ATLAS toroid, and then electrical insulation qualification during the manufacturing of magnets,
- Project support for R&D on MgB2 or HTS magnets (NOUGAT),
- Collaboration with the Léon Brillouin laboratory.
Technical steps, expertise
- Winding,
- Impregnation under vacuum,
- Preparation of samples by chemical pickling,
- Sample characterization,
- Processing of the resin.
Contact:
#849 - Last update : 02/16 2023
• LCSE
