Vacuum coating device
US12157940B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2020 |
| Grant date | Dec 3, 2024 |
| Priority date | — |
| Expiry date | Jul 7, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C14/543
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Provided is a vacuum coating device, comprising a crucible (13), an induction heater (15) arranged on the outer side of the crucible (13); a flow distribution box connected to the top of the crucible (13) through a steam pipeline (16); a pressure regulating valve (18) and a diverter valve (19) sequentially arranged in a direction in which the steam pipeline (16) is in communication with the flow distribution box; a horizontal pressure stabilizing plate (20) arranged in the flow distribution box, a plurality of sub-nozzles (21) connected to the top of the flow distribution box; wherein a plurality of air flow distribution chambers are arranged in the diverter valve (19); a ratio of a total area of the air flow distribution chambers (Sdistribution) to an area of the steam pipeline (16) in the radial direction (Spipeline) is greater than or equal to 0.1, i.e.: Sdiversion/Spipeline≥0.1. According to the device, a uniform spray flow can be formed, a uniform coating (23) is formed on the surface of a steel plate (100) when high temperature steam is in contact with a low temperature steel plate, the spray flow formed by the sub-nozzles (21) arranged at the rear portion continuously covers…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.