Four-layer solid wood composite geothermal floor and its production process

Abstract

The invention belongs to the technical field of building materials, and relates to a solid wood composite floor, in particular to a four-layer solid wood composite geothermal floor and a production process thereof. The four-layer solid wood composite geothermal floor disclosed by the present invention is sequentially glued together by surface board 1, sub-surface board 2, core board 3 and bottom board 4. The vertical, horizontal and longitudinal ones are staggered with each other, and the sub-surface board is plywood. The four-layer solid wood composite geothermal floor disclosed by the present invention uses wood, especially precious wood, plywood, fast-growing wood board, etc. as the main raw material, and integrates the beautiful appearance of wood, especially precious wood, fast heat conduction and good thermal stability of the composite floor, Reasonable use of wood, especially precious wood and artificial fast-growing forest resources; full consideration of key elements such as heat transfer, deformation and cracking in structural design, so that it has small bending deformation and excellent thermal conductivity, and has a very broad market development prospect.

Description

technical field [0001] The invention belongs to the technical field of building materials, and relates to a solid wood composite floor, in particular to a four-layer solid wood composite geothermal floor and a production process thereof. Background technique [0002] With the increasing saturation of the laminate flooring market, the market share of solid wood flooring in the entire flooring industry is getting higher and higher. Among them, the solid wood composite floor with three-layer structure is more and more popular in the market because of its environmental protection, not easy to deform, wide application area and good appearance effect as geothermal floor. [0003] The surface of the three-layer solid wood composite floor generally adopts 3~4mm hard wood precious tree species as the surface board. In order to save the surface material, some people in the industry propose to change the three-layer solid wood composite floor Add a layer of cork veneer to the thin sur...

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Problems solved by technology

[0003] The surface of the three-layer solid wood composite floor generally adopts 3~4mm hard wood precious tree species as the surface board. In order to save the surface material, some people in the industry propose to change the three-layer solid wood composite floor Add a layer of cork veneer to the thin surface board to replace the original pure hardwood surface board, and then the surface board, veneer board, core board, and back board are glued together in sequence. This solution not only saves the surface hardwood At the same time, it solves the problems of corrugation of the core board and shortened service life of the floor due to the reduction of the thickness of the surface board.

In this invention, the heat conduction grooves are respectively arranged in the core board (3) and the floor (4). Strength) will be reduced, shortening the service life of the floor, the wider the slot width, the more the mechanical strength will be reduced; (2), core board (3) The distance of the transverse heat conduction groove is set to 25~40mm, and the heat conduction groove setting is relatively Intensive, it will increase the production cost of the floor. Under the premise of achieving the heat conduction effect, it should be considered to use as few heat conduction grooves as possible; (3). 0.5~1.5mm, or even 2.5mm; the thickness of the aluminum strip added to the longitudinal heat conduction groove is the same as the depth of the longitudinal heat conduction groove, and it is set at 1~3mm. The thicker the thickness of the aluminum or copper strip, the thicker the aluminum strip or copper strip will be. As a result, the production cost of the floor is higher. Under the premise of achieving the heat conduction effect, it should be considered to use thinner aluminum strips or narrower heat conduction grooves

[0005] The announcement number is CN2926381Y "Composite Solid Wood Flooring", which discloses a composite solid wood floor, which includes a board body with a tongue-and-groove structure on the side. The board body is composed of a surface material layer and a composite layer, and the surface material layer is on the composite layer. There is a geothermal groove on the back of the board, and air is used as the heat transfer medium, which has the defect of low heat conduction efficiency

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