CN102941612B - Method for manufacturing recombined bamboo decorative material - Google Patents

Method for manufacturing recombined bamboo decorative material Download PDF

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Publication number
CN102941612B
CN102941612B CN201210439930.8A CN201210439930A CN102941612B CN 102941612 B CN102941612 B CN 102941612B CN 201210439930 A CN201210439930 A CN 201210439930A CN 102941612 B CN102941612 B CN 102941612B
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China
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board
bamboo
poplar
slab
impregnation
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CN201210439930.8A
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Chinese (zh)
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CN102941612A (en
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李贤军
吴义强
李新功
王纯
贺霞
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中南林业科技大学
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Abstract

The invention discloses a method for manufacturing recombined bamboo decorative material, firstly bamboo beams are processed by a defibering treatment, a poplar log is rotary-cut into veneers, poplar veneers are carbonized, dried and sheared, then the bamboo beams and the poplar veneers are dipped with phenolic resin and are processed by second drying treatment, and finally the treatments of cold-pressing, heat curing, balanced modulation and post trimming are carried out, a novel recombined bamboo decorative material with stripe decorative effect, lower density, good dimensional stability and high horizontal bonding strength can be manufactured, during the manufacturing process of the recombined bamboo decorative material, the carbonized poplar veneer strips and the original bamboo beams are evenly mixed, the recombined bamboo decorative material manufactured with the method can be widely applied in the manufacture of floors, interior and exterior decoration materials and engineering structural materials, is practical, and is high in promotion and application value.

Description

A kind of method manufacturing Recombined bamboo wood decoration material
Technical field
The invention belongs to ornament materials manufacturing technology field, particularly relate to a kind of method manufacturing Recombined bamboo wood decoration material.
Background technology
China's bamboo grove area, accumulation, the bamboo output value all occupy first place in the world, existing bamboo grove area about 7,200,000 hm 2, wherein mao bamboon accounts for 70%.At present, Recombined bamboo is the topmost bamboo based article of China, is widely used in floor, furniture manufacturing field.
Existing Recombined bamboo also exists color single (being mainly true qualities and charing look), it is easy to crack when overdrying environmental condition uses, humidity cross use in overall situation time surface crease easily, yielding four large defects when using under humidity changes greatly environment, cause the reason of this defect mainly: 1) bamboo wood intrinsic colour is single, and all texture is logical straight, the color not having timber to have and texture diversity; 2) bamboo wood hardness is excessive, in compression forming process, for ensureing that Recombined bamboo has enough packings, needing very large pressure, make Recombined bamboo density excessive, and density distribution uniformity being poor; 3) vascular bundle and the elementary organization that form bamboo wood are all longitudinal arrangement, and horizontal organization is few, and transverse strength is little, under environment for use, easily produce transversal crack.
Summary of the invention
The object of the present invention is to provide, be intended to solve that existing Recombined bamboo color is single, density is excessive, transverse strength is low, in use easily produces the problem of cracking, wrinkling and deformation defect.
The invention provides a kind of method manufacturing Recombined bamboo wood decoration material, the method comprises the following steps:
Step one, discongests process to bamboo Shu Jinhang, is board using poplar board by willow rounding simultaneously, and board using poplar board is carbonized, dry and shear treatment;
Step 2, carries out impregnation and redrying process with phenolic resins to bamboo bundle and board using poplar board;
Step 3, to the bamboo bundle after impregnation and redrying process and board using poplar board cold pressing sizing, be heating and curing, balance modulation and the later stage repairs and processes.
Further, in step one, implementation method bamboo Shu Jinhang being discongested to process is:
Adopt bamboo wood rolling apparatus to be discongested by mao bamboon as length 1000-2000mm, width is the bamboo bundle of 10-50mm, and the bamboo bundle transverse direction after discongesting does not rupture, and longitudinal direction is loose and inter-adhesive;
Adopting conventional kiln drying (kd) or net belt type drying means that true qualities bamboo bundle is dried to moisture content is 6-15%.
Further, in step one, be veneer by willow rounding, and board using poplar board is carbonized, implementation method that is dry and shear treatment is:
Length is that the willow log of 1000-2000mm is processed into the flat-cut board using poplar board that thickness is 0.5-3.0mm by employing flat-cut machine;
Flat-cut board using poplar board is stacked neatly, directly send in high temperature high pressure process tank after putting into material car, with the saturated vapor of boiler supply, charing process is carried out to flat-cut board using poplar board, by the Stress control of steam in process tank between 0.3-0.5MPa, charing process 1-4 hour, by board using poplar board charing for coffee-like;
Dry or the gas drying method of conventional kiln drying (kd), net belt type is adopted to be 6-15% by carbonized poplar veneer drying to moisture content;
Utilize board using poplar board cutter along longitudinal parallel-to-grain shear of board using poplar board, board using poplar board is cut into the board using poplar board bar that width is 10-50mm.
Further, in step 2, with phenolic resins to the implementation method that bamboo bundle and board using poplar board carry out impregnation and redrying process be:
When carrying out dipping process to bamboo bundle and board using poplar board bar, impregnation process liquid adopts solids content to be the phenolic resins of 20-45%, and flood at normal temperatures and pressures, dip time is 1-20min;
Adopt conventional kiln drying (kd) or net belt type drying means to carry out drying process to impregnation bamboo bundle and board using poplar board bar, its moisture content is dried to 6-12%, and in dry run, the temperature of drying medium controls within 75 DEG C.
Further, in step 3, to the bamboo bundle after impregnation and redrying process and board using poplar board cold pressing sizing, be heating and curing, balance modulation and the later stage repairs the implementation method processed and is:
Dried impregnation board using poplar board bar and true qualities bamboo bundle are put into the mould with locking device in the same direction, and with cold stamping die press to its sizing of colding pressing, slab target density controls at 0.60-0.90g/cm 3, after being compressed to setting target density, with steel plate and pin locking die, prevent slab from rebounding and reply, board using poplar board bar quality accounts for the 10%-80% of slab gross mass;
During assembly, carbonized poplar veneer strip and true qualities bamboo bundle as far as possible evenly mix, and after being compressed to target density, the length of slab equals the length of board using poplar board bar or bamboo bundle, and width of plate slab is between 100-400mm, and slab thickness is between 100-500mm;
Board using poplar board bar and bamboo bundle mixing slab are together sent into tunnel type together with mould to be heating and curing equipment, the temperature of the equipment that is heating and curing controls at 120-160 DEG C, and the solidification processing time is 6-16 hour;
After being heating and curing, mixing slab being placed in indoor together with mould and displaying 12-24 hour, after slab cools completely, adopt form removal machine to be separated with the Recombined bamboo flitch after solidification by mould;
Deposited by Recombined bamboo flitch Mi Dui after solidification, carry out Balance Treatment, the resting period controls at 10-30 days, reduces the heat in slab, wet stress;
The cutting edge in length and breadth of Recombined bamboo flitch, adopts multiple blade saw or buck saw through-thickness to be thickness by Recombined bamboo flitch subdivision to be the Recombined bamboo wood saw material of 10-30mm.
The method of manufacture Recombined bamboo wood decoration material provided by the invention, first process is discongested to bamboo Shu Jinhang, be veneer by willow rounding simultaneously, again board using poplar board is carbonized, drying and shear treatment, then with phenolic resins, impregnation and redrying process are carried out to bamboo bundle and board using poplar board, finally carry out sizing of colding pressing, be heating and curing, balance modulation is repaired with the later stage and is processed, produce and there is speckle decorative effect, density is lower, good stability of the dimension and the high novel Recombined bamboo wood decoration material of horizontal integration intensity, in Recombined bamboo wood decoration material manufacture process, carbonized poplar veneer strip and true qualities bamboo bundle evenly mix, the Recombined bamboo wood decoration material produced by the method can be widely used in floor, the manufacture of interior/exterior decoration material and Engineered Wood Products, practical, there is stronger propagation and employment be worth.
Accompanying drawing explanation
Fig. 1 is the realization flow figure of the method for the manufacture Recombined bamboo wood decoration material that the embodiment of the present invention provides.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 1 shows the realization flow of the method for the manufacture Recombined bamboo wood decoration material that the embodiment of the present invention provides.The method comprises the following steps:
Step S101, discongests process to bamboo Shu Jinhang, is veneer by willow rounding simultaneously, and board using poplar board is carbonized, dry and shear treatment;
Step S102, carries out impregnation and redrying process with phenolic resins to bamboo bundle and board using poplar board;
Step S103, to the bamboo bundle after impregnation and redrying process and board using poplar board cold pressing sizing, be heating and curing, balance modulation and the later stage repairs and processes.
In embodiments of the present invention, in step S101, implementation method bamboo Shu Jinhang being discongested to process is:
Adopt bamboo wood rolling apparatus to be discongested by mao bamboon as length 1000-2000mm, width is the bamboo bundle of 10-50mm, and the bamboo bundle transverse direction after discongesting does not rupture, and longitudinal direction is loose and inter-adhesive;
Adopting conventional kiln drying (kd) or net belt type drying means that true qualities bamboo bundle is dried to moisture content is 6-15%.
In embodiments of the present invention, in step S101, be veneer by willow rounding, and board using poplar board is carbonized, implementation method that is dry and shear treatment is:
Length is that the willow log of 1000-2000mm is processed into the flat-cut board using poplar board that thickness is 0.5-3.0mm by employing flat-cut machine;
Flat-cut board using poplar board is stacked neatly, directly send in high temperature high pressure process tank after putting into material car, with the saturated vapor of boiler supply, charing process is carried out to flat-cut board using poplar board, by the Stress control of steam in process tank between 0.3-0.5MPa, charing process 1-4 hour, by board using poplar board charing for coffee-like;
Dry or the gas drying method of conventional kiln drying (kd), net belt type is adopted to be 6-15% by carbonized poplar veneer drying to moisture content;
Utilize board using poplar board cutter along longitudinal parallel-to-grain shear of board using poplar board, board using poplar board is cut into the board using poplar board bar that width is 10-50mm.
In embodiments of the present invention, in step S102, with phenolic resins to the implementation method that bamboo bundle and board using poplar board carry out impregnation and redrying process be:
When carrying out dipping process to bamboo bundle and board using poplar board bar, impregnation process liquid adopts solids content to be the phenolic resins of 20-45%, and flood at normal temperatures and pressures, dip time is 1-20min;
Adopt conventional kiln drying (kd) or net belt type drying means to carry out drying process to impregnation bamboo bundle and board using poplar board bar, its moisture content is dried to 6-12%, and in dry run, the temperature of drying medium controls within 75 DEG C.
In embodiments of the present invention, in step S103, to the bamboo bundle after impregnation and redrying process and board using poplar board cold pressing sizing, be heating and curing, balance modulation and the later stage repairs the implementation method processed and is:
Dried impregnation board using poplar board bar and true qualities bamboo bundle are put into the mould with locking device in the same direction, and with cold stamping die press to its sizing of colding pressing, slab target density controls at 0.60-0.90g/cm 3, after being compressed to setting target density, with steel plate and pin locking die, prevent slab from rebounding and reply, board using poplar board bar quality accounts for the 10%-80% of slab gross mass;
During assembly, carbonized poplar veneer strip and true qualities bamboo bundle as far as possible evenly mix, and after being compressed to target density, the length of slab equals the length of board using poplar board bar or bamboo bundle, and width of plate slab is between 100-400mm, and slab thickness is between 100-500mm;
Board using poplar board bar and bamboo bundle mixing slab are together sent into tunnel type together with mould to be heating and curing equipment, the temperature of the equipment that is heating and curing controls at 120-160 DEG C, and the solidification processing time is 6-16 hour;
After being heating and curing, mixing slab being placed in indoor together with mould and displaying 12-24 hour, after slab cools completely, adopt form removal machine to be separated with the Recombined bamboo flitch after solidification by mould;
Deposited by Recombined bamboo flitch Mi Dui after solidification, carry out Balance Treatment, the resting period controls at 10-30 days, reduces the heat in slab, wet stress;
The cutting edge in length and breadth of Recombined bamboo flitch, adopts multiple blade saw or buck saw through-thickness to be thickness by Recombined bamboo flitch subdivision to be the Recombined bamboo wood saw material of 10-30mm.
Referring to accompanying drawing 1, the flow process of the method for the manufacture Recombined bamboo wood decoration material that the embodiment of the present invention provides is described in further detail.
Embodiment 1:
(1) adopt bamboo wood rolling apparatus to be discongested by mao bamboon as length 1000mm, width is the bamboo bundle of 20mm.Adopting conventional kiln drying (kd) method that true qualities bamboo bundle is dried to moisture content is again 10%;
(2) flat-cut machine is adopted to be that the willow log of 1000mm is processed into the flat-cut veneer that thickness is 2.0mm by length, flat-cut veneer is stacked neatly, directly send in high temperature high pressure process tank after loading onto material car, with the saturated vapor of boiler supply, charing process is carried out to flat-cut board using poplar board, by the Stress control of steam in process tank at 0.35MPa, charing process 2.5 hours, by veneer charing for coffee-like;
(3) be 12% by carbonized poplar veneer drying to moisture content with mesh-belt drier, board using poplar board, along longitudinal parallel-to-grain shear of veneer, is cut into the veneer strip that width is 20mm by recycling veneer clipper;
(4) carry out dipping process to bamboo bundle and veneer strip, impregnation process liquid adopts solids content to be the phenolic resins of 25%, and flood at normal temperatures and pressures, dip time is 10min;
(5) adopt mesh-belt drier to carry out drying process to impregnation bamboo bundle and veneer strip, its moisture content is dried to 10%, and in dry run, the temperature of drying medium controls at 70 DEG C;
(6) impregnation veneer strip and the impregnation bamboo bundle of 31.5 kilograms is taken, wherein impregnation veneer strip 16.5 kilograms, impregnation bamboo bundle 15 kilograms, veneer strip and bamboo bundle are evenly mixed as much as possible, again it is put in the same direction the mould with locking device, with cold stamping die press to its sizing of colding pressing, slab target density controls at 0.70g/cm 3, after being compressed to setting target density, with steel plate and pin locking die, prevent slab from rebounding and reply, after compression, slab is of a size of: 1.0m (length) × 0.15m (wide) × 0.30m (thick);
(7) veneer strip and bamboo bundle mixing slab are together sent into tunnel type together with mould to be heating and curing equipment, the temperature of the equipment that is heating and curing controls at 140 DEG C, and the solidification processing time is 12 hours;
(8) after being heating and curing, mixing slab being placed in indoor together with mould and displaying 16 hours, after slab cools completely, adopt form removal machine to be separated with the Recombined bamboo flitch after solidification by mould;
(9) the Recombined bamboo flitch Mi Dui after solidification is deposited, carry out Balance Treatment, deposit 14 days, reduce the heat in slab, wet stress;
(10) Recombined bamboo flitch cutting edge in length and breadth;
(11) the Recombined bamboo wood saw material of 15mm is adopted multiple blade saw or buck saw through-thickness to be thickness by Recombined bamboo flitch subdivision to be.
Embodiment 2:
(1) adopt bamboo wood rolling apparatus to be discongested by mao bamboon as length 1920mm, width is the bamboo bundle of 25mm, then to adopt conventional kiln drying (kd) method that true qualities bamboo bundle is dried to moisture content be 12%;
(2) flat-cut machine is adopted to be that the willow log of 1920mm is processed into the flat-cut veneer that thickness is 2.5mm by length, flat-cut veneer is stacked neatly, directly send in high temperature high pressure process tank after loading onto material car, with the saturated vapor of boiler supply, charing process is carried out to flat-cut board using poplar board, by the Stress control of steam in process tank at 0.4MPa, charing process 1.5 hours, by veneer charing for coffee-like;
(3) adopt conventional kiln drying (kd) method to be 10% by carbonized poplar veneer drying to moisture content, recycle veneer clipper along longitudinal parallel-to-grain shear of veneer, board using poplar board is cut into the veneer strip that width is 25mm;
(4) carry out dipping process to bamboo bundle and veneer strip, impregnation process liquid adopts solids content to be the phenolic resins of 30%, and flood at normal temperatures and pressures, dip time is 8min;
(5) adopt conventional kiln drying (kd) method to carry out drying process to impregnation bamboo bundle and veneer strip, its moisture content is dried to 8%, and in dry run, the temperature of drying medium controls within 65 DEG C;
(6) impregnation veneer strip and the impregnation bamboo bundle of 64.8 kilograms is taken, wherein impregnation veneer strip 26.80 kilograms, impregnation bamboo bundle 38 kilograms, veneer strip and bamboo bundle are evenly mixed as much as possible, again it is put in the same direction the mould with locking device, with cold stamping die press to its sizing of colding pressing, slab target density controls at 0.75g/cm 3, after being compressed to setting target density, with steel plate and pin locking die, prevent slab from rebounding and reply, after compression, slab is of a size of: 1.92m (length) × 0.15m (wide) × 0.30m (thick);
(7) veneer strip and bamboo bundle mixing slab are together sent into tunnel type together with mould to be heating and curing equipment, the temperature of the equipment that is heating and curing controls at 130 DEG C, and the solidification processing time is 14 hours;
(8) after being heating and curing, mixing slab being placed in indoor together with mould and displaying 20 hours, after slab cools completely, adopt form removal machine to be separated with the Recombined bamboo flitch after solidification by mould;
(9) deposited by the Recombined bamboo flitch Mi Dui after solidification, carry out Balance Treatment, the resting period controls at 20 days, reduces the heat in slab, wet stress;
(10) Recombined bamboo flitch cutting edge in length and breadth;
(11) the Recombined bamboo wood saw material of 20mm is adopted multiple blade saw or buck saw through-thickness to be thickness by Recombined bamboo flitch subdivision to be.
Willow is one of large quick-growing plantation seeds of China topmost three, and poplar wood has that material is soft, hardness is little, intensity and the feature such as density is low.In the production process of Recombined bamboo, soft, that hardness is little, hardness the is low carbonized poplar board using poplar board bar replacement part of material is adopted to discongest true qualities bamboo bundle, can under ensureing that Recombined bamboo has the prerequisite of enough packings, reduce Recombined bamboo density, improve its transverse strength and dimensional stability, effective alleviation Recombined bamboo in use ftractures, the appearance of wrinkling and deformation defect, and make it have speckle shape decorative pattern, improve its decorate properties.Thus improving Recombined bamboo quality, high-qualityization realizing bamboo wood and inferior grade Poplar Resource utilizes.
Instant invention overcomes existing Recombined bamboo and also exist that color is single, density is excessive, transverse strength is low, in use easily produces the defect of cracking, wrinkling and distortion.The carbonized poplar veneer strip that employing material is softer, density is low, hardness is little and true qualities bamboo Shu Jinhang rift grain mix assembly, can under maintenance Recombined bamboo has the prerequisite of enough packings, reduce Recombined bamboo density, improve its transverse strength and dimensional stability, effective alleviation Recombined bamboo in use ftractures, the appearance of wrinkling and deformation defect, and make it have speckle shape decorative pattern, improve decorate properties, improve added value of product.
The Recombined bamboo wood decoration material adopting the present embodiment to produce can be used as the manufacture of floor, interior/exterior decoration material and Engineered Wood Products.
The method of the manufacture Recombined bamboo wood decoration material that the embodiment of the present invention provides, first process is discongested to bamboo Shu Jinhang, be veneer by willow rounding simultaneously, again board using poplar board is carbonized, drying and shear treatment, then with phenolic resins, impregnation and redrying process are carried out to bamboo bundle and board using poplar board, finally carry out sizing of colding pressing, be heating and curing, balance modulation is repaired with the later stage and is processed, produce and there is speckle decorative effect, density is lower, good stability of the dimension and the high novel Recombined bamboo wood decoration material of horizontal integration intensity, in Recombined bamboo wood decoration material manufacture process, carbonized poplar veneer strip and true qualities bamboo bundle evenly mix, the Recombined bamboo wood decoration material produced by the method can be widely used in floor, the manufacture of interior/exterior decoration material and Engineered Wood Products, practical, there is stronger propagation and employment be worth.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims (1)

1. manufacture a method for Recombined bamboo wood decoration material, it is characterized in that, the method comprises the following steps:
Step one, discongests process to bamboo Shu Jinhang, is veneer by willow rounding simultaneously, and board using poplar board is carbonized, dry and shear treatment;
Step 2, carries out impregnation and redrying process with phenolic resins to bamboo bundle and board using poplar board bar;
Step 3, to the bamboo bundle after impregnation and redrying process and board using poplar board bar cold pressing sizing, be heating and curing, balance modulation and the later stage repairs and processes;
In step one, implementation method bamboo Shu Jinhang being discongested to process is:
Adopt bamboo wood rolling apparatus to be discongested by mao bamboon as length 1000-2000mm, width is the bamboo bundle of 10-50mm, and the bamboo bundle transverse direction after discongesting does not rupture, and longitudinal direction is loose and inter-adhesive;
Adopting conventional kiln drying (kd) or net belt type drying means that true qualities bamboo bundle is dried to moisture content is 6-15%;
In step one, be veneer by willow rounding, and board using poplar board is carbonized, implementation method that is dry and shear treatment is:
Length is that the willow log of 1000-2000mm is processed into the flat-cut board using poplar board that thickness is 0.5-3.0mm by employing flat-cut machine;
Flat-cut board using poplar board is stacked neatly, directly send in high temperature high pressure process tank after putting into material car, with the saturated vapor of boiler supply, charing process is carried out to flat-cut board using poplar board, by the Stress control of steam in process tank between 0.3-0.5MPa, charing process 1-4 hour, by board using poplar board charing for coffee-like;
Dry or the gas drying method of conventional kiln drying (kd), net belt type is adopted to be 6-15% by carbonized poplar veneer drying to moisture content;
Utilize board using poplar board cutter along longitudinal parallel-to-grain shear of board using poplar board, board using poplar board is cut into the veneer strip that width is 10-50mm;
In step 2, with phenolic resins to the implementation method that bamboo bundle and board using poplar board bar carry out impregnation and redrying process be:
When carrying out dipping process to bamboo bundle and board using poplar board bar, impregnation process liquid adopts solids content to be the phenolic resins of 20-45%, and flood at normal temperatures and pressures, dip time is 1-20min;
Adopt conventional kiln drying (kd) or net belt type drying means to carry out drying process to impregnation bamboo bundle and board using poplar board bar, its moisture content is dried to 6-12%, and in dry run, the temperature of drying medium controls within 75 DEG C;
In step 3, to the bamboo bundle after impregnation and redrying process and board using poplar board bar cold pressing sizing, be heating and curing, balance modulation and the later stage repairs the implementation method processed and is:
Dried impregnation board using poplar board bar and true qualities bamboo bundle are put into the mould with locking device in the same direction, with cold stamping die press to its sizing of colding pressing, slab target density controls at 0.60-0.90g/cm3, after being compressed to setting target density, with steel plate and pin locking die, prevent from slab from rebounding to reply, board using poplar board bar quality accounts for the 10%-80% of slab gross mass;
During assembly, carbonized poplar veneer strip and true qualities bamboo bundle as far as possible evenly mix, and after being compressed to target density, the length of slab equals the length of board using poplar board bar or bamboo bundle, and width of plate slab is between 100-400mm, and slab thickness is between 100-500mm;
Board using poplar board bar and bamboo bundle mixing slab are together sent into tunnel type together with mould to be heating and curing equipment, the temperature of the equipment that is heating and curing controls at 120-160 DEG C, and the solidification processing time is 6-16 hour;
After being heating and curing, mixing slab being placed in indoor together with mould and displaying 12-24 hour, after slab cools completely, adopt form removal machine to be separated with the Recombined bamboo flitch after solidification by mould;
Deposited by Recombined bamboo flitch Mi Dui after solidification, carry out Balance Treatment, the resting period controls at 10-30 days, reduces the heat in slab, wet stress;
The cutting edge in length and breadth of Recombined bamboo flitch, adopts multiple blade saw or buck saw through-thickness to be thickness by Recombined bamboo flitch subdivision to be the Recombined bamboo wood saw material of 10-30mm.
CN201210439930.8A 2012-10-31 2012-10-31 Method for manufacturing recombined bamboo decorative material CN102941612B (en)

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