Screw machine and method for the processing of material to be processed
US11117306B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 27, 2016 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Mar 12, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2948/92885
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A screw machine includes an inductive heating device for processing of material to be processed. The inductive heating device is used to heat the material in a heating zone. In the heating zone, at least one housing portion is made of an electromagnetically transparent material at least partly, the material being non-magnetic and electrically non-conductive, whereas at least one treatment element shaft is made of an electrically conductive material at least partly. The inductive heating device includes at least one coil formed integrally with a component of the at least one housing portion, in particular in such a way as to form a hybrid component. During the processing of the material, the inductive heating device generates an alternating magnetic field that produces eddy current losses in the at least one treatment element shaft, the eddy current losses leading to a temperature increase of the at least one treatment element shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.