Technical background
Core-board has that light weight, easily processing, nail-holding ability are good, indeformable, sound absorption, the advantages such as adiabatic, is the ideal material that interior decoration and top-grade furniture are made.Core-board is compared as particieboard, medium density fibre board (MDF) etc. with similar finished product, and its natural timber characteristic is more complied with the requirement of mankind's nature.So it is the most extensive, the most popular a kind of sheet material of purposes.
Core-board is a kind of combination hard board, and its main plate sandwich layer is for to form block board by various wood combination.At present, the timber that is used for manufacturing central layer be not because quality gently, than soft, absorb moisture large, be difficult for drying etc., caused sheet material make and use procedure in, after the moisture evaporation, the easy dry and cracked distortion of sheet material, besides because woodenly hard, be difficult for compacting, the defects such as splicing construction is bad, and nail-holding ability is poor, and deformation coefficient is large.
Summary of the invention
Purpose of the present invention is exactly to overcome the deficiency of existing product and production method that a kind of fragrant China fir core-board is provided.Specifically comprise: be that primary raw material is made the semi-finished product central layer with fragrant China fir log, be combined into the core-board finished product.
The present invention is achieved through the following technical solutions:
1, a kind of production method of fragrant China fir core-board, be to be that primary raw material is made the semi-finished product central layer with fragrant China fir log in technical scheme, then be combined into the process of core-board finished product by fragrant China fir semi-finished product central layer.
2, the processing method of making the semi-finished product central layer with fragrant China fir log is as follows:
(1) use raw material: the fragrant China fir log of all size;
(2) processing method: above-mentioned fragrant China fir log is split into to the chip (bar) that the specification shape differs by multiple blade saw;
(3) processing method: specification as required is combined into plate by chip (bar) according to a conventional method;
(4) sanding is processed: after chip (bar) is combined into plate, to the hackly plate of plate face, adopt sander that the plate facing sand is put down and the semi-finished product central layer.
3, the process that is combined into the core-board finished product by fragrant China fir semi-finished product central layer is: assembly → mistake glue → precompressed → repairing → hot pressing → scrape ash → oven dry → sanding → veneer → saw limit → polishing → check → finished product.
The existing following advantage of the present invention:
1, implement the present invention, raw material timber used---fragrant shirt, its raw material sources are extensive, and fragrant shirt material is softer, wood structure evenly, be out of shape little, contract with dry rate is little, and fragrant shirt is the tangential and less seeds of radial shrinkage rate difference of a kind of timber, easily processing, the size of core bar, shape are more accurate, and production board face planarization is good, and sheet material is not yielding, weight is lighter, is conducive to use.
2, with fragrant shirt, be that Raw material processing core-board finished product out can be effectively moistureproof, anticorrosion; And other seeds are made easily humidity and mouldy of traditional core-board.
3, with fragrant shirt, be the core-board that Raw material processing forms, its hardness and flatness all are better than traditional core-board.
4, apply fragrant shirt as raw material production and processing core-board, its raw material availability is up to 90% left and right, and the utilization rate of other raw material is only 70% left and right.
5, by implementing the present invention, make fragrant shirt tree material be able to multistage increment, increase the industry added value.
The specific embodiment
Below in conjunction with embodiment, method of the present invention is further illustrated.
A kind of production method of fragrant China fir core-board, specific implementation method is as follows:
1, technical scheme is divided into two processes:
(1) with fragrant China fir log, be that primary raw material is made the semi-finished product central layer;
(2) fragrant China fir semi-finished product central layer is combined into the core-board finished product.
2, the processing method of making the semi-finished product central layer with fragrant China fir log is as follows:
(1) use raw material: the fragrant China fir log of all size;
(2) processing method: above-mentioned fragrant China fir log is split into to the chip (bar) that the specification shape differs by multiple blade saw;
(3) processing method: specification as required is combined into plate by chip (bar) according to a conventional method;
(4) sanding is processed: after chip (bar) is combined into plate, to the hackly plate of plate face, adopt sander that the plate facing sand is put down and the semi-finished product central layer.
3, the process that fragrant China fir semi-finished product central layer is combined into the core-board finished product is: assembly → mistake glue → precompressed → repairing → hot pressing → scrape ash → oven dry → sanding → veneer → saw limit → polishing → check → finished product.