Coated film drying furnace
US8983280B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2012 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Dec 29, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A coated film drying furnace for drying a coated film inside a furnace body by conveying the coated film therein, the coated film having an absorption spectrum for electromagnetic waves of 3.5 μm or less and having hydrogen bonds, such as an electrode coated film for lithium ion battery. Infrared heaters provided inside a furnace body have outer circumferences of filaments concentrically covered by tubes that function as a low pass filter, and have a structure in which a fluid flow passage is formed between the plurality of tubes. Due to this, a temperature rise in the furnace is controlled so as to prevent explosion of an organic solvent vapor, and the coated film is efficiently heated and dried by intensively radiating near infrared rays of 3.5 μm or less that have superior ability to cut off the intermolecular hydrogen bonds onto a work.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.