CN101550796A - Multilayer solid wood composite door - Google Patents

Abstract

The invention relates to a multilayer solid wood composite door which is characterized in that a door body is of a single-board structure processed by clipping, carving, polishing and oiling multilayer solid wood composite boards. The method for manufacturing the multilayer solid wood composite board is as follows: (1) rotationally cutting logs into wood boards of 3 to 6 mm specification; (2) carrying out heat pressing and drying processes to the wood boards; (3) coating glue on two sides of the wood boards; (4) carrying out cold pressing; (5) carrying out heat pressing; and (6) sanding and polishing surfaces and carrying out final trimming and shaping. The invention has the beneficial effects of 1) obtaining the multilayer solid wood composite board with excellent physical mechanics property and machining property as the multilayer solid wood composite board is formed by hot-pressing multilayer rotationally-cut boards in a crisscross pattern; 2) obtaining integrated structure so as to restrict the sinking of door sides to the maximum extent; 3) gluing 5 to 11 layers of boards of 3 to 6 mm specification together so as to reduce the usage of glue and overcome the contamination caused by excessive formaldehyde; and 4) adopting the rotary-cutting technique to cut logs so as to enhance the utilization rate of wood.

Description

Multilayer solid wood composite door

Technical field

The present invention relates to decorate the door field, relate in particular to a kind of multilayer solid wood composite door.

Background technology

Along with the raising of people's living standard and the theory of pursuit quality of life deepen continuously, make people more and more higher to the requirement of home decoration, various novel house doors arise at the historic moment, as Solid Door, solid wood composite door, paintless door, wood-plastic door or the like, but these types are all because self material or structural reason exist the defective that some can't overcome.

Owing to seeds difference, place of production difference, land occupation condition difference, cause timber wood property difference very big such as Solid Door, national standard is general only to have requirement to the water content of dispatching from the factory, and can't set up quantitative criteria to the cracking in the use, metaboly.Also have timber utilization rate low (generally going out material has only about 50%), cause the waste of the forest reserves, do not meet environmental protection trend.

Solid wood composite door is to be composited by timber and medium density fibreboard, though solved cracking, the problem on deformation of Solid Door to a certain extent, but wherein the medium density fibreboard consumption takies 40%～60% of material total amount, pollution problems that existence chance tide expands and formaldehyde exceeds standard.

Paintless door is to use a small amount of plank, and major ingredient is to carve moulding with medium density fibreboard, adopts the vacuum compound film technology to carry out incrustation again.Pollution problems that also existence chance tide expands and formaldehyde exceeds standard, also having a deadly defect is exactly can't repair after sharp thing clashes into.

Wood-plastic door is to use plastics, wood powder to be squeezed into section bar, sockets through bolt to form again.This door is easily aging, and surperficial enamelled coating easily comes off, and application life is short yielding and not attractive in appearance.

Above-described several door, its traditional structure generally are a limit, door band, upward mud sill, inside door core plate structure, or employing door limit, door band, upward mud sill sockets with bolt and forms, and one side sinkage easily takes place the weight owing to deadweight of door body and lockset.

Summary of the invention

The purpose of this invention is to provide a kind of multilayer solid wood composite door, this Men Tiwei single plate structure has solved that cracking in the door body use, distortion, door limit sink, formaldehyde exceeds standard problems such as pollution.

For achieving the above object, the present invention is achieved through the following technical solutions:

Multilayer solid wood composite door, it is the single plate structure of being made through the operation of cutting out, carve, polish, oil by multi-layer solid wood composite board.

The manufacture method of described multi-layer solid wood composite board is such:

(1) rounding is cut into 3～6mm specification plank;

(2) plank takes the hot pressing oven dry to handle, and 150～220 ℃ of bake out temperatures, pressure are 1～5 kg/cm, and oven dry back plank water content is 8～13%;

(3) with the plank double spread;

(4) cold pressing, with the plank behind the gluing, synthetic 5～11 layers of the staggered anyhow stack of wood grain, pressure 5～13 kg/cm, 40～80 minutes time;

(5) carry out hot pressing, pressure 5～13 kg/cm, 150～220 ℃ of hot pressing temperatures, hot pressing time 20～90 minutes;

(6) sanding surface, polishing, the saw edge forming.

Compared with prior art, the invention has the beneficial effects as follows:

1) multi-layer solid wood composite board is to be formed by the crisscross hot pressing of multilayer rotary-cut plate, the expand with wet and contract with dry rate of timber and the anisotropic of tensile strength significantly reduce, physical and mechanical properties such as MOR, internal bond strength, modulus of elasticity, plate face and edges of boards nail-holding ability all are better than other and decorate door, machining property such as boring, mortise, groove milling even be better than former solid wood timber.

2) single plate structure has been cancelled door limit, door band, has been gone up mud sill, interior door panel, has farthest suppressed door limit sinkage.

3) adopt 5～11 layers of bonding forming of 3～6mm specification plank, reduced the use amount of glue, solve the formaldehyde pollution problems that exceeds standard.

4) adopt the rounding technology, improved the utilization rate of timber, volume recovery can reach 80%, improves 30% than Solid Door timber utilization rate.

The specific embodiment

The manufacture method of the multi-layer solid wood composite board that multilayer solid wood composite door is used is such:

(1) rounding is cut into 2000 * 1000 * 4mm and 1000 * 2000 * 4mm specification plank;

(2) plank takes the hot pressing oven dry to handle, and 200 ℃ of bake out temperatures, pressure are 1 kg/cm, and oven dry back plank water content is 8～13%;

(3) repair at the damaged place of plank;

(4) the plank two sides is coated with urea-formaldehyde glue;

(5) cold pressing, with the plank behind the gluing, synthetic 5 layers of the staggered anyhow stack of wood grain, pressure 9 kg/cm, 1 hour time;

(6) carry out hot pressing, pressure 10 kg/cm, 200 ℃ of hot pressing temperatures, hot pressing time is 26 minutes;

(7) sanding surface, polishing, the saw edge forming.

The manufacture method of multilayer solid wood composite door is: above-mentioned multi-layer solid wood composite board is cut out, carved, polishes, oils by layout with the computer engraving machine by door body specification 1900 * 800mm, promptly be made.

This body adopts single plate structure, has cancelled a door limit, door band, has gone up mud sill, interior door panel, has solved that cracking, distortion, door limit sink in the use of door body, formaldehyde exceeds standard problems such as pollution.

Multi-layer solid wood composite board of the present invention also can be used for manufacturing furniture, is of wide application.

Claims (2)

1. multilayer solid wood composite door is characterized in that, it is the single plate structure of being made through the operation of cutting out, carve, polish, oil by multi-layer solid wood composite board.

2. multilayer solid wood composite door according to claim 1 is characterized in that, the manufacture method of described multi-layer solid wood composite board is such:

(1) rounding is cut into 3～6mm specification plank;

(2) plank takes the hot pressing oven dry to handle, and 150～220 ℃ of bake out temperatures, pressure are 1～5 kg/cm, and oven dry back plank water content is 8～13%;

(3) with the plank double spread;

(4) cold pressing, with the plank behind the gluing, synthetic 5～11 layers of the staggered anyhow stack of wood grain, pressure 5～13 kg/cm, 40～80 minutes time;

(5) carry out hot pressing, pressure 5～13 kg/cm, 150～220 ℃ of hot pressing temperatures, hot pressing time 20～90 minutes;

(6) sanding surface, polishing, the saw edge forming.