JPS5796846A - Multi-directional fiber plywood and molding thereof - Google Patents
Multi-directional fiber plywood and molding thereofInfo
- Publication number
- JPS5796846A JPS5796846A JP17412980A JP17412980A JPS5796846A JP S5796846 A JPS5796846 A JP S5796846A JP 17412980 A JP17412980 A JP 17412980A JP 17412980 A JP17412980 A JP 17412980A JP S5796846 A JPS5796846 A JP S5796846A
- Authority
- JP
- Japan
- Prior art keywords
- plywood
- tapered section
- directional fiber
- cracking
- cushion material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
PURPOSE: To obtain a deeply drawn molding free of cracking, breaking, wrinkling or the like by inserting a multi-directional fiber plywood made up of more than two layers of veneers glued at such an angle that individual fibers are neither perpendicular nor parallel to each other in the direction into a tapered section of a lower die and press it with an upper die through a cushion material.
CONSTITUTION: For example, three layers of veneers are laminated through an adhesive with fibers arranged in the directions of the arrows a, b and c shifted by 120° from each other to obtain a multi-directional fiber plywood 4, which is inserted into a tapered section 3B of a lower die 3 and softened by curing under evaporation. Then, after a cushion material 5 is placed on the plywood 4, an upper die 2 is lowered to heat it under pressure. Thus, a deeply drawn molding such as tray is obtained. Under a condition that the plywood 4 is inserted in the tapered section 3B, there is no angle causing a hitching resistance thereby preventing cracking. In addition, interposition of the cushion material 5 permits the material to be pressed entirely thereby assuring a deeply drawn molding free of cracking, breakihg, wrinkling, irregularities or the like.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17412980A JPS5796846A (en) | 1980-12-09 | 1980-12-09 | Multi-directional fiber plywood and molding thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17412980A JPS5796846A (en) | 1980-12-09 | 1980-12-09 | Multi-directional fiber plywood and molding thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5796846A true JPS5796846A (en) | 1982-06-16 |
Family
ID=15973156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17412980A Pending JPS5796846A (en) | 1980-12-09 | 1980-12-09 | Multi-directional fiber plywood and molding thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5796846A (en) |
-
1980
- 1980-12-09 JP JP17412980A patent/JPS5796846A/en active Pending
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