Mask-based partition preheating device and partition preheating method thereof
US11097491B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2018 |
| Grant date | Aug 24, 2021 |
| Priority date | — |
| Expiry date | Feb 9, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A mask-based partition preheating device and method are provided. The device includes an overall heating light source and a local preheating light source. A substrate provided at a forming cylinder is configured to heat an underlying powder. A mask plate is provided between the local preheating light source and the overall heating light source. A powder material to be sintered is coated on a local preheating zone. The local preheating light source, the mask plate and the overall heating light source are all connected to a temperature controller. A temperature control probe and a thermal imager in a temperature monitor are disposed in a working chamber for detecting the temperature of the powder surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.