Polyimid (PI)
Sintered polyimide semi-finished products and finished pressings have excellent long-term thermal stability. The wide temperature application range of the materials extends from –270°C to +300°C. Even when heated briefly to 350°C, polyimide materials do not melt or soften. Strength, dimensional stability and creep resistance under mechanical stress remain high even in continuous use.
The trend towards space and weight savings in modern mechanical and plant engineering leads to increased power densities and thus to higher demands on the heat and wear resistance of the materials used. The property profile of polyimides meets these requirements in an excellent way.
Properties:
- high strength in a wide temperature range from –270 °C to + 300 °C
- very good permanent temperature resistance
- glass transition temperature up to 400 °C
- good cryogenic properties
- inherently flame retardant (UL 94 V0)
- low thermal expansion
- outstanding long-term properties
- excellent wear resistance at - high surface pressure - high sliding speed
- high compressive strength and creep resistance
- high resistance to radiation
- high purity, low outgassing in vacuum
- good chemical resistance to acids, fats and solvents
- excellent electrical insulation properties
- low thermal conductivity
Applications:
- Aerospace technology
- Cryogenics
- Electronics
- Electrical Engineering
- Food Technology
- Mechanical Engineering
- Nuclear and vacuum technology
- Precision Mechanics
- Semiconductor Technology
Sintered semi-finished products can be produced in various materials and manufacturing processes.
Polyimides are available as:
- Semi-finished products (rods, plates, short tubes)
- Machined part according to drawing
- Serial part in direct molding process
We manufacture precision components made of polyimide in small series by machining according to customer drawings.
For larger series, components can be cost-effectively pressed and sintered using the direct forming process.
