Summary of the invention
The invention provides a kind of multi-layer composite geothermal floor board, comprise surface layer and bottom, described surface layer comprises abrasion-proof paper, be positioned at wooden skin or the woodgrained paper below the described abrasion-proof paper and be positioned at kraft below described wooden skin or the described woodgrained paper, described bottom comprises the multilayer veneer, described veneer is positioned at below the described kraft, becomes one with adhesive is bonding layer by layer successively between described abrasion-proof paper, wooden skin or woodgrained paper, kraft, multilayer veneer.
The present invention also provides a kind of method that is used to make multi-layer composite geothermal floor board, comprising:
1. abrasion-proof paper, wooden skin or woodgrained paper are immersed in melamine glue or the cyanurotriamide modified glue;
2. kraft is immersed in phenol glue or the phenol aldehyde modified glue;
3. at 30kg/cm
2-94kg/cm
2Unit pressure, 100 ℃-160 ℃ the condition of temperature under, suppress described wooden skin and described kraft that described abrasion-proof paper, described woodgrained paper or thickness are 0.1mm-0.6mm, synthetic surface layer;
4. to multilayer veneer gluing;
5. at 10kg/cm
2-20kg/cm
2Unit pressure, 100 ℃-140 ℃ the condition of temperature under, suppress described multilayer veneer, synthetic bottom;
6. gluing between described surface layer and described bottom;
7. at 10kg/cm
2-20kg/cm
2Unit pressure, 100 ℃-140 ℃ the condition of temperature under hot pressing or at 10kg/cm
2-20kg/cm
2The condition of unit pressure, normal temperature under cold pressing described surface layer of compacting and described bottom, the synthesizing multilayer heating floor.
The floor of being made by said method has following advantage:
1. the possibility of floor musculus cutaneus cracking reduces in the manufacturing process, and this floor repair rate is reduced, and has economic and practical.
2. not yielding, the good stability of integral body, wooden feel are strong.
3. floor surface hardness is big, and abrasion resistance is good.
4. guarantee under the ground heat condition that musculus cutaneus can not ftracture.
5. effectively save precious timber.
6. surface aesthetic, reasonable price, cost performance height.
The specific embodiment
Please refer to Fig. 1, Fig. 1 is a structural representation of the present invention.As shown in the figure, the multilayer terrestrial heat composite floor is divided into two-layer, surface layer 1 and bottom 2.
Surface layer 1 comprises abrasion-proof paper 11, be positioned at wooden skin 121 or the woodgrained paper 122 below the abrasion-proof paper 11 and be positioned at kraft 13 below described wooden skin or the described woodgrained paper.Bottom 2 comprises multilayer veneer 21, and described veneer 21 is positioned at below the described kraft 13.21 of abrasion-proof paper 11, wooden skin 121 or woodgrained paper 122, kraft 13, multilayer veneers become one with adhesive is bonding layer by layer successively.
The effect of above-mentioned kraft 13 has been to increase the intensity on floor, helps to reduce the floor possibility of musculus cutaneus cracking in process of production, makes the floor hardness that becomes strong and wear-resisting, has economic and practical.Above-mentioned surface layer 1 used wooden skin 121 is a precious timber, and veneer 21 uses of bottom 2 is common material, do like this and both made that floor surface hardness was big, abrasion resistance is good, guarantee that under the ground heat condition musculus cutaneus can not ftracture, it is strong to make the ground slab integral be difficult for distortion, good stability, wooden feel again, also effectively saves precious timber simultaneously.
The concrete adhesive bonding method of each interlayer is as follows:
1. abrasion-proof paper 11, wooden skin 121 or woodgrained paper 122 are immersed in melamine glue or the cyanurotriamide modified glue.
2. kraft 13 is immersed in phenol glue or the phenol aldehyde modified glue.
3. at 30kg/cm
2-94kg/cm
2Unit pressure, 100 ℃-160 ℃ the condition of temperature under, compacting abrasion-proof paper 11, woodgrained paper 122 or thickness are wooden skin 121 and the kraft 13 of 0.1mm-0.6mm, synthetic surface layer 1.
4. to multilayer veneer 21 gluings.
5. at 10kg/cm
2-20kg/cm
2Unit pressure, 100 ℃-140 ℃ the condition of temperature under, compacting multilayer veneer 21, synthetic bottom 2.
6. at surface layer 1 and 2 gluings of bottom.
7. at 10kg/cm
2-20kg/cm
2Unit pressure, 100 ℃-140 ℃ the condition of temperature under hot pressing or at 10kg/cm
2-20kg/cm
2The condition of unit pressure, normal temperature under cold pressing compacting surface layer 1 and bottom 2, the synthesizing multilayer heating floor.
Should be understood that the operation in the manufacturing process is not limited to the order that above-mentioned steps manifests, production process can help increasing floor intensity, arranges by oneself under the principle of the possibility of reduction floor musculus cutaneus cracking.
In the step 3 of said method, have three kinds of modes to synthesize surface layer 1 respectively:
3.1 at 60kg/cm
2-84kg/cm
2Unit pressure, 100 ℃-160 ℃ temperature and suppress under 30 minutes to 60 minutes the condition of time, compacting abrasion-proof paper 11, thickness are wooden skin 121 and the kraft 13 of 0.1mm-0.2mm, synthetic surface layer 1.Preferred embodiment is for being 67kg/cm in unit pressure
2, temperature is 130 ℃, the thickness of wooden skin 121 is 45 minutes synthetic surface layers 1 of compacting under the condition of 0.15mm, and is 74kg/cm in unit pressure
2, temperature is 136 ℃, the thickness of wooden skin 121 is 45 minutes synthetic surface layers 1 of compacting under the condition of 0.15mm.
3.2 at 60kg/cm
2-94kg/cm
2Unit pressure, 100 ℃-160 ℃ temperature and suppress under 30 minutes to 60 minutes the condition of time compacting abrasion-proof paper 11, woodgrained paper 122 and kraft 13, synthetic surface layer 1.Preferred embodiment is for being 67kg/cm in unit pressure
2, temperature is 45 minutes synthetic surface layers 1 of compacting under 130 ℃ the condition, and is 74kg/cm in unit pressure
2, temperature is 45 minutes synthetic surface layers 1 of compacting under 136 ℃ the condition.
3.3 at 30kg/cm
2-67kg/cm
2Unit pressure and 100 ℃-160 ℃ temperature and suppress under 30 seconds to 3 minutes the time conditions, compacting abrasion-proof paper 11 and thickness are the wooden skin 121 of 0.2mm-0.6mm, synthetic surface layer 1.Preferred embodiment is for being 30kg/cm in unit pressure
2, temperature is 110 ℃, the thickness of wooden skin 121 is 1.5 minutes synthetic surface layers of compacting under the condition of 0.5mm, and is 50kg/cm in unit pressure
2, temperature is 125 ℃, the thickness of wooden skin 121 is 1.5 minutes synthetic surface layers of compacting under the condition of 0.5mm.
It should be noted that, the thickness of the wooden skin 121 in step 3.2 drops to 0.1-0.2mm from 0.6mm-4mm of the prior art, do so also is in order to reduce the possibility of the wooden skin cracking that causes because of high pressure, to have solved the problem of the cracking of floor musculus cutaneus in the manufacturing process.
In the step 5 of said method, the grain direction of multilayer veneer 21 adjacent two layers is horizontal vertical staggered or consistent, and the thickness of veneer 21 is 0.4mm-3mm.The preferred embodiment of step 5 is for being 15kg/cm in unit pressure
2, temperature is 110 ℃, thickness is bottom 2 synthetic under the condition of 1.5mm, and is 20kg/cm in unit pressure
2, temperature is 125 ℃, thickness is the bottom 2 that synthesizes under the condition of 1.5mm.
The preferred embodiment of above-mentioned step 7 is for being 20kg/cm in unit pressure
2, temperature is under 150 ℃ the condition of hot pressing or in unit pressure to be 16.8kg/cm
2, temperature is synthetic floor under 110 ℃ the condition of hot pressing, and is 15kg/cm in unit pressure
2, be 20kg/cm under the condition that normal temperature is colded pressing or in unit pressure
2, the floor of synthesizing under the condition that normal temperature is colded pressing.
At last with ready-made flooring saw slivering, mill out tongue and groove with the floor S4S of slivering and at opposite side in twos again, be convenient to install.
Should be understood that the foregoing description only gives an example for convenience of description, is not the restriction to scope of the present invention.Such as, can use different viscose glues according to the different needs on different floors, be not limited to above-mentioned viscose glue.Therefore, for the general personnel in present technique field, can make many variations under the situation that does not break away from spirit of the present invention, the scope that the present invention advocated should be as the criterion so that the claim in claims is described.