CN201371486Y

CN201371486Y - Thin medium-density or high-density fiberboard

Info

Publication number: CN201371486Y
Application number: CN200820168693U
Authority: CN
Inventors: 唐善学
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-11-25
Filing date: 2008-11-25
Publication date: 2009-12-30
Anticipated expiration: 2018-11-25

Abstract

The utility model relate to a thin medium-density or high-density fiberboard. At present, the thin medium-density or high-density fiberboards are generally produced by a continuous press. The thin medium-density or high-density fiberboard produced by a multi-opening press has the excellent advantages of uniform vertical density profile, high internal bonding strength, high nail-holding capability, both smooth surfaces, fine fibers, good appearance, good stability and the like, and has an important application value in fields such as furniture, building decoration, wooden doors, vehicles, vessels and craftworks.

Description

A kind of thin type middle and higher density fiberboard

Technical field

The utility model relates to the fiberboard technical field, particularly a kind of thin type middle and higher density fiberboard.

Background technology

At present, the thin type middle and higher density fiberboard of two-sided light, it is continuous press production line dry production commonly used, advantages such as the thin type middle and higher density fiberboard of this continuous press production has the production efficiency height, the slab flatness is good, thickness deviation is little, pre-hardening thickness is thin or do not have at home and abroad are applied.This continuous press production line investment is huge, often reaches more than 10-20 times of multidaylight press.So, still take as the leading factor with the multidaylight press production line in China.In addition, the reasons in structure of continuous press own, hot pressing divides high pressure, middle pressure, low pressure several stages, and the continuous press temperature is also at 180-250 ℃.It is bigger that the sheeting of continuous press institute exists the profile density difference, and upper and lower top layer density is big, and sandwich layer density is low, and the profile density difference is greater than 7%, have in addition more than 10%.This thin plate, it is lower that interior knot contains intensity, easily produces the sandwich layer cracking in the use and the problem of layering.

The utility model content

It is more even that the purpose of this utility model provides a kind of profile density, the better thin type middle and higher density of internal bond strength fiberboard.

The technical solution of the utility model is: thin type middle and higher density fiberboard, its upper and lower any surface finish, profile density distribution uniform, upper epidermis a ₁, following top layer b ₁With sandwich layer c ₁Density contrast is less than 6%, and multidaylight press hot pressing forms, plate body thickness 2-8mm.

This thin type medium density fibre board (MDF) upper surface and/or lower surface or oiling or be covered with ornament materials.Ornament materials can be natural timber veneer, Wooden veneer, recombinant decorative material veneer, facing paper, PLASTIC LAMINATED, sheet metal etc.

China is set at 450-880kg/m with medium density fibre board (MDF) density usually ³(GB/T11718-1999), the density of high density fiberboard is usually greater than 880kg/m ³Herein, high density fiberboard density is generally at 450-1100kg/m ³Between.

The utility model has the advantages that this thin type middle and higher density fiberboard profile density is more even, solved former thin type middle and higher density fiberboard upper epidermis a ₂, following top layer b ₂With sandwich layer c ₂Density contrast is greater than 7% shell-like structure, and sandwich layer density is less relatively, and it is on the low side easily to produce internal bond strength, produces the easy to crack and problem of layering of sandwich layer in the use.

This plate adopts multi-daylight press to make, and has solved multidaylight press because of the precuring bed thickness, and spillage of material is many, and can not do the thin plate problem.

This plate production can make full use of multi-daylight press production line production capacity, production efficiency height, profile density even structure, the product internal bond strength is good, nail-holding ability is big, and plate face breadth is big, the fiber exquisiteness, appearance looks elegant, dimensional stability is good, and raw material sources are wide, fibrous material utilization rate height, saw cuts convenient, has the characteristics of a series of superiority.Has great application value in fields such as furniture, timber, building, car and boat, handicraft decorations.

Description of drawings:

Fig. 1 is the structural representation of the utility model thin type middle and higher density fiberboard.

1 is upper surface among the figure, and 2 is lower surface, a ₁Be upper surface layer, b ₁Be undersurface layer, c ₁Be sandwich layer.

Fig. 2 is the structural representation of common thin middle and higher density fiberboard.

1 is upper surface among the figure, and 2 is lower surface, a ₂Be upper surface layer, b ₂Be undersurface layer, c ₂Be sandwich layer.

a ₂, b ₂With c ₂Density contrast greater than 7%, profile density is inhomogeneous, has the shell structure feature.

a ₁, b ₁With c ₁Density contrast less than 6%, sandwich layer c ₁Density is relatively large, and profile density is more even, has density homogeneous texture feature.

The specific embodiment:

Embodiment 1, thickness 3mm, upper and lower any surface finish, plate body averag density 450kg/m ³, profile density is more even, a ₁, b ₁With c ₁Density contrast is less than 6%, the thin type medium density fibre board (MDF) that forms for multidaylight press hot pressing.

Embodiment 2, plate body averag density 880kg/m ³, other is identical with embodiment 1.

Embodiment 3, plate body averag density 1100kg/m ³The thin type high density fiberboard, a ₁, b ₁With c ₁Density contrast is less than 3%, and other is identical with embodiment 1.

Embodiment 4, thickness 5mm, other is identical with embodiment 1, and is perhaps identical with embodiment 2, perhaps identical with embodiment 3.

Embodiment 5, thickness 8mm, other is identical with embodiment 1, and is perhaps identical with embodiment 2, perhaps identical with embodiment 3.

The thin type middle and higher density fiberboard that embodiment 6, multidaylight press hot pressing form, surface-coated paint decorative layer.

The thin type middle and higher density fiberboard that embodiment 7, multidaylight press hot pressing form, facing paper is posted on the single or double surface, or another side posts balance paper.

The thin type middle and higher density fiberboard that embodiment 8, multidaylight press hot pressing form, single or double post natural or artificial veneer or Wooden veneer or PLASTIC LAMINATED.

In the thin type that embodiment 9, multidaylight press hot pressing form, high density fiberboard, single or double metal clad thin slice is as aluminium alloy plate.

Claims

1, a kind of thin type middle and higher density fiberboard is characterized in that upper and lower any surface finish, the profile density distribution uniform, and upper epidermis a, following top layer b and sandwich layer c density contrast are less than 6%, and multidaylight press hot pressing forms, plate body thickness 2-8mm.

2, a kind of thin type middle and higher density fiberboard according to claim 1 is characterized in that upper surface and/or lower surface can paint or post ornament materials.

3, a kind of thin type middle and higher density fiberboard according to claim 2 is characterized in that ornament materials can be natural precious timber veneer, Wooden veneer, recombinant decorative material veneer, facing paper, PLASTIC LAMINATED, sheet metal.