Electroerosion recording medium fabrication method
US4606937A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1985 |
| Grant date | Aug 19, 1986 |
| Priority date | — |
| Expiry date | Jan 30, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/256
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A track recording support for recording devices is suggested with a support (10) made of paper or plastic on which a metallic coating (12) is mounted by means of evaporation and being able to be burned off by means of recording electrodes, in particular an aluminum coating. A lubricant in a finely dispersed form is added to contrast coating (11) for reducing of scratching and grinding traces on the surface of metal coating (12) which reaches metal coating (12) and the freely exposed surface thereof by means of diffusion. Preferably, the lubricant is fed to the contrast substance in a powdery form before the processing of the same. On the one hand, it acts in a physical point of view by a reduction of the slide friction on the surface and, on the other hand, in a chemical point of view in that it substantially prevents the build up of combustion residues from the contrast layer on the recording electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.