According to The Panel World July 2015, Raute talked about its new module-based green vener composing line at Ligna 2015, including automatic defect clipping with machine vision based defect analysis and composing, sheet clipping and stacking
The aligned and clipped veners are jointed with tape applied on both sides of the veneer with aid of electrically heated process.
Panel repair was another area of emphasizis for Raute, which promoted its Mecano VDA color and 3D defect analyzer as part of its automatic repairing line.
The Arauco Nueva Aleda softwood plywood mill features two repairing lines with common platform for two operators in between.
Laminated veneer lumber has been available commercially for over 30 years. During this period its popularity has grown and the manufacturing process developed by Raute has proven to be the most reliable and most adaptable for a wide range of different production situations.
Raute continues to gain business in the LVL secort, with four LVL mill orders placed during the last four years. These days, the challenge facing LVL producers is how to make the strongest possible LVL from their available raw material using smart grading techniques to sort their veneers.
LVL is made from sheets of veneer. When these sheets are combined into a continuous billet of LVL, the effects of flaws in individual sheets are negated because they are spread throughout the cross-section of the billet, rather than being concentrated in specific locations, such as is the case with sawn lumber.
For example, a flaw in a single sheet of veneer laid up into a 15-ply billet of LVL will effectively be 1/15.
Source: Raute and Panel World July 2015