Method for laminating essentially plate-shaped work pieces
US9023163B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 22, 2011 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Dec 21, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2457/12
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for laminating essentially plate-shaped work pieces with a thermally activated adhesive layer, particularly photovoltaic modules. Work pieces are inserted into a vacuum chamber having a compression element dividing the vacuum chamber in a gas tight fashion that can be raised and lowered by pressure differences. The compression element presses against the work piece which in turn presses against a heating plate which forms a lower side of the vacuum chamber, with processing heat being transferred into the work piece to soften the adhesive. The work piece is first impinged by the compression element with a slight load from approx. 2% to 10% of the defined processing load, and is simultaneously kept below the adhesive activation temperature. Thereafter, the slight load is lifted off the work piece and the work piece is heated to the activation temperature and impinged via the compression element with the processing load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.