The project deals with the final development of new
drilling techniques which are much more accurate, and more
waterproof materials to be able to produce barrels (single
screw, twin screw and sonic) and the matching screws for
extruders which meet the changing demands of the synthetics
This project will be conducted together with a German
company (CPM GMBH), which has considerable knowledge of the
process of making screws and metallic compounds. The
changing demands to the material and the geometry of single
and twin-screw barrels for extruders forces KLUIN WIJHE
B.V. to carry out fundamental research and development to
find new materials and new (conic) drilling techniques.
This can be translated into the following actions:
1. The material of barrels and screws should be more
resistant to corrosion, adhesion, abrasion and chemical
2. Accurate cylindrical twin-screw barrels should be
3. Accurate conic single-screw barrels should be
4. Accurate conic twin-screw barrels should be developed;
5. The commercialisation of this project through the
reduction of production time, the lowering of the
production costs, the reduction in used materials and
the more waterproof twin-screw barrel.
The costs of this project are estimated at $ 7,700,000.
After the research and development has taken place, an
extruder will be built and marketed. The duration of the
project is estimated at 72 months.
Keywords: twin-screw extruder, conic drilling, new