Ultra thick bamboo-wood composite panel, ultra thick solid wood composite panel and manufacturing methods thereof
First Claim
1. An ultra-thick wood/bamboo composite panel, comprising core board, surface board and back board, wherein said core board is comprised of several ultra-thick peeling veneers, each veneer having a thickness of 6 to 12 mm;
- both said surface board and said back board are made of bamboo;
veneers of contiguous layer in said core board are assembled with parallel structure or cross structure;
said ultra-thick veneers constituting the core board are veneers with stress degradation treatment, punctate or line segment cracks are formed along grain of the loose side of said veneer in each layer, and average length is in a range of 20 to 50 mm and average depth is from ¼
to ½
of veneer thickness for said cracks in the loose side of said veneer; and
a glue layer is arranged between adjacent veneers.
1 Assignment
0 Petitions
Accused Products
Abstract
A composite panel and its manufacture are described. Ultra-thick bamboo/wood and solid wood composite panels are comprised of core board, surface board and back board. The core board is composed of ultra-thick peeling veneers with thickness of 6 to 12 mm. Both surface board and back board are made of bamboo or wood. The core board comprises several layers of the ultra-thick veneers, and the veneers of contiguous layer are assembled with parallel structure. A glue layer is arranged between contiguous veneers; adhesive in the glue layer is aqueous macromolecule isocyanate adhesive. The ultra-thick veneers of the core layer are the veneers with stress degradation treatment, i.e., punctate or line segment cracks are formed along the grain of the veneer'"'"'s loose side in each layer.
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Citations
19 Claims
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1. An ultra-thick wood/bamboo composite panel, comprising core board, surface board and back board, wherein said core board is comprised of several ultra-thick peeling veneers, each veneer having a thickness of 6 to 12 mm;
- both said surface board and said back board are made of bamboo;
veneers of contiguous layer in said core board are assembled with parallel structure or cross structure;
said ultra-thick veneers constituting the core board are veneers with stress degradation treatment, punctate or line segment cracks are formed along grain of the loose side of said veneer in each layer, and average length is in a range of 20 to 50 mm and average depth is from ¼
to ½
of veneer thickness for said cracks in the loose side of said veneer; and
a glue layer is arranged between adjacent veneers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- both said surface board and said back board are made of bamboo;
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10. A solid wood composite panel made of ultra-thick veneers, comprising surface layer of two outer surfaces and core layer between the outer surfaces, and adhesive arranged between veneers in each layer;
- wherein
said core layer is comprised of several ultra-thick veneers, each veneer having a thickness of 6 to 12 mm, and said surface layer is comprised of veneers with thickness of 0.2 to 1.5 mm; and the ultra-thick veneers used in said core layer are veneers made by peeling of log, and punctate or line segment cracks are formed along grain of the loose side of said veneer in each layer, and average length is in a range of 20 to 50 mm and average depth is ⅙
to ½
of veneer thickness for said cracks in the loose side of said ultra-thick veneer used in said core layer. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
- wherein
Specification