CN102941612A - Method for manufacturing recombined bamboo decorative material - Google Patents
Method for manufacturing recombined bamboo decorative material Download PDFInfo
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- CN102941612A CN102941612A CN2012104399308A CN201210439930A CN102941612A CN 102941612 A CN102941612 A CN 102941612A CN 2012104399308 A CN2012104399308 A CN 2012104399308A CN 201210439930 A CN201210439930 A CN 201210439930A CN 102941612 A CN102941612 A CN 102941612A
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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
Technical field
The invention belongs to ornament materials manufacturing technology field, relate in particular to a kind of method of making 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 about 7,200,000 hm of bamboo grove area
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 manufacture field.
Existing Recombined bamboo exists color single (being mainly true qualities and charing look), it is easy to crack when the overdrying environmental condition is used, cross in the overall situation in humidity that the surface creases easily when using, change when using under the overall situation yielding four large defectives in humidity, cause the reason of this defective mainly to be: 1) the bamboo wood intrinsic colour is single, and all texture is perfectly straight, the color and the texture diversity that do not have timber to have; 2) bamboo wood hardness is excessive, in the compression forming process, has enough packings for guaranteeing Recombined bamboo, needs very large pressure, so that Recombined bamboo density is excessive, and the Density Distribution lack of homogeneity; 3) vascular bundle and the elementary organization of formation bamboo wood are all longitudinal arrangement, and horizontal organization is few, and transverse strength is little, produce easily transversal crack under environment for use.
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 produces easily the problem of cracking, wrinkling and deformation defect.
The invention provides a kind of method of making Recombined bamboo wood decoration material, the method may further comprise the steps:
Step 1, Shu Jinhang discongests processing to bamboo, is board using poplar board with the willow rounding simultaneously, and board using poplar board is carried out charing, drying and shear treatment;
Step 2 is carried out impregnation and redrying processing with phenolic resins to bamboo bundle and board using poplar board;
Step 3, the bamboo bundle after impregnation and redrying processed and board using poplar board cold pressing typing, be heating and curing, balance modulation and later stage finishing processing.
Further, in the step 1, the implementation method of bamboo Shu Jinhang being discongested processing is:
Adopt the bamboo wood rolling apparatus that mao bamboon is discongested and be length 1000-2000mm, width is the bamboo bundle of 10-50mm, and the bamboo bundle after discongesting does not laterally rupture, and is vertically 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 the step 1, be veneer with the willow rounding, and to the implementation method that board using poplar board carries out charing, drying and shear treatment be:
Adopting the flat-cut machine 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 with length;
The flat-cut board using poplar board is stacked neatly, directly send in the high temperature high pressure process tank after putting into the material car, the saturated vapor of supplying with boiler carries out the charing processing to the flat-cut board using poplar board, the pressure of steam in the process tank is controlled between the 0.3-0.5MPa, charing was processed 1-4 hour, was coffee-like with the board using poplar board charing;
Adopting conventional kiln drying (kd), net belt type drying or gas drying method is 6-15% with the carbonized poplar veneer drying to moisture content;
Utilize the board using poplar board cutter along vertical 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 the step 2, with phenolic resins bamboo bundle and board using poplar board are carried out the implementation method that impregnation and redrying process and are:
When bamboo bundle and board using poplar board bar were carried out dipping process, it was the phenolic resins of 20-45% that impregnation process liquid adopts solids content, dipping at normal temperatures and pressures, and dip time is 1-20min;
Adopt conventional kiln drying (kd) or net belt type drying means that impregnation bamboo bundle and board using poplar board bar are carried out the drying processing, its moisture content is dried to 6-12%, in the dry run, the temperature of drying medium is controlled in 75 ℃.
Further, in the step 3, the bamboo bundle after impregnation and redrying processed and board using poplar board cold pressing typing, be heating and curing, the balance modulation with the implementation method of later stage finishing processing is:
Dried impregnation board using poplar board bar and true qualities bamboo bundle are put into mould with locking device in the same direction, and to its typing of colding pressing, the slab target density is controlled at 0.60-0.90g/cm with the cold stamping die press
3, be compressed to target setting density after, with steel plate and pin locking die, prevent that the slab bounce-back from replying, 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, be compressed to target density after, the length of slab equals the length of board using poplar board bar or bamboo bundle, width of plate slab is between 100-400mm, slab thickness is between 100-500mm;
Board using poplar board bar and bamboo bundle mixing slab are together sent into the tunnel type equipment that is heating and curing together with mould, and the temperature of the equipment that is heating and curing is controlled at 120-160 ℃, and solidifying the processing time is 6-16 hour;
Be heating and curing finish after, will mix slab and place the indoor 12-24 of displaying hour together with mould, after slab cools off fully, adopt the form removal machine with mould with solidify after the Recombined bamboo flitch separate;
Close the storing up of Recombined bamboo flitch after solidifying put, carry out Balance Treatment, the resting period is controlled at 10-30 days, reduces the heat in the slab, wet stress;
The in length and breadth cutting edge of Recombined bamboo flitch, adopting multiple blade saw or buck saw through-thickness is that thickness is the Recombined bamboo wood saw material of 10-30mm with Recombined bamboo flitch subdivision.
The method of manufacturing Recombined bamboo wood decoration material provided by the invention, at first bamboo Shu Jinhang is discongested processing, be veneer with the willow rounding simultaneously, again board using poplar board is carried out charing, drying and shear treatment, then with phenolic resins bamboo bundle and board using poplar board are carried out impregnation and redrying processing, the typing of colding pressing at last, be heating and curing, the balance modulation is processed with the later stage finishing, produce and have the speckle decorative effect, density is lower, the novel Recombined bamboo wood decoration material that good stability of the dimension and horizontal integration intensity are high, 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 of producing by the method can be widely used in the floor, the manufacturing of indoor and outdoor ornament materials and Engineered Wood Products, practical, have stronger propagation and employment and be worth.
Description of drawings
Fig. 1 is the realization flow figure of the method for the manufacturing Recombined bamboo wood decoration material that provides of the embodiment of the invention.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, 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, is not intended to limit the present invention.
Fig. 1 shows the realization flow of the method for the manufacturing Recombined bamboo wood decoration material that the embodiment of the invention provides.The method may further comprise the steps:
Step S101, Shu Jinhang discongests processing to bamboo, is veneer with the willow rounding simultaneously, and board using poplar board is carried out charing, drying and shear treatment;
Step S102 carries out impregnation and redrying processing with phenolic resins to bamboo bundle and board using poplar board;
Step S103, the bamboo bundle after impregnation and redrying processed and board using poplar board cold pressing typing, be heating and curing, balance modulation and later stage finishing processing.
In embodiments of the present invention, among the step S101, the implementation method of bamboo Shu Jinhang being discongested processing is:
Adopt the bamboo wood rolling apparatus that mao bamboon is discongested and be length 1000-2000mm, width is the bamboo bundle of 10-50mm, and the bamboo bundle after discongesting does not laterally rupture, and is vertically 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, among the step S101, be veneer with the willow rounding, and to the implementation method that board using poplar board carries out charing, drying and shear treatment be:
Adopting the flat-cut machine 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 with length;
The flat-cut board using poplar board is stacked neatly, directly send in the high temperature high pressure process tank after putting into the material car, the saturated vapor of supplying with boiler carries out the charing processing to the flat-cut board using poplar board, the pressure of steam in the process tank is controlled between the 0.3-0.5MPa, charing was processed 1-4 hour, was coffee-like with the board using poplar board charing;
Adopting conventional kiln drying (kd), net belt type drying or gas drying method is 6-15% with the carbonized poplar veneer drying to moisture content;
Utilize the board using poplar board cutter along vertical 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, among the step S102, with phenolic resins bamboo bundle and board using poplar board are carried out the implementation method that impregnation and redrying process and are:
When bamboo bundle and board using poplar board bar were carried out dipping process, it was the phenolic resins of 20-45% that impregnation process liquid adopts solids content, dipping at normal temperatures and pressures, and dip time is 1-20min;
Adopt conventional kiln drying (kd) or net belt type drying means that impregnation bamboo bundle and board using poplar board bar are carried out the drying processing, its moisture content is dried to 6-12%, in the dry run, the temperature of drying medium is controlled in 75 ℃.
In embodiments of the present invention, among the step S103, the bamboo bundle after impregnation and redrying processed and board using poplar board cold pressing typing, be heating and curing, the balance modulation with the implementation method of later stage finishing processing is:
Dried impregnation board using poplar board bar and true qualities bamboo bundle are put into mould with locking device in the same direction, and to its typing of colding pressing, the slab target density is controlled at 0.60-0.90g/cm with the cold stamping die press
3, be compressed to target setting density after, with steel plate and pin locking die, prevent that the slab bounce-back from replying, 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, be compressed to target density after, the length of slab equals the length of board using poplar board bar or bamboo bundle, width of plate slab is between 100-400mm, slab thickness is between 100-500mm;
Board using poplar board bar and bamboo bundle mixing slab are together sent into the tunnel type equipment that is heating and curing together with mould, and the temperature of the equipment that is heating and curing is controlled at 120-160 ℃, and solidifying the processing time is 6-16 hour;
Be heating and curing finish after, will mix slab and place the indoor 12-24 of displaying hour together with mould, after slab cools off fully, adopt the form removal machine with mould with solidify after the Recombined bamboo flitch separate;
Close the storing up of Recombined bamboo flitch after solidifying put, carry out Balance Treatment, the resting period is controlled at 10-30 days, reduces the heat in the slab, wet stress;
The in length and breadth cutting edge of Recombined bamboo flitch, adopting multiple blade saw or buck saw through-thickness is that thickness is the Recombined bamboo wood saw material of 10-30mm with Recombined bamboo flitch subdivision.
Referring to accompanying drawing 1, the flow process of the method for the manufacturing Recombined bamboo wood decoration material that the embodiment of the invention is provided is described in further detail.
Embodiment 1:
(1) adopts the bamboo wood rolling apparatus that mao bamboon is discongested and be that length 1000mm, width are the bamboo bundle of 20mm.Adopting the conventional kiln drying (kd) method that true qualities bamboo bundle is dried to moisture content is 10% again;
(2) adopting the flat-cut machine is that the willow log of 1000mm is processed into the flat-cut veneer that thickness is 2.0mm with length, the flat-cut veneer is stacked neatly, directly send in the high temperature high pressure process tank after loading onto the material car, the saturated vapor of supplying with boiler carries out the charing processing to the flat-cut board using poplar board, the pressure of steam in the process tank is controlled at 0.35MPa, charing was processed 2.5 hours, was coffee-like with the veneer charing;
(3) be 12% with the carbonized poplar veneer drying to moisture content with mesh-belt drier, the recycling veneer clipper cuts into the veneer strip that width is 20mm along vertical parallel-to-grain shear of veneer with board using poplar board;
(4) bamboo bundle and veneer strip are carried out dipping process, impregnation process liquid employing solids content is 25% phenolic resins, floods at normal temperatures and pressures, and dip time is 10min;
(5) adopt mesh-belt drier that impregnation bamboo bundle and veneer strip are carried out the drying processing, its moisture content is dried to 10%, in the dry run, the temperature of drying medium is controlled at 70 ℃;
(6) take by weighing 31.5 kilograms impregnation veneer strip and impregnation bamboo bundle, wherein the impregnation veneer strip is 16.5 kilograms, 15 kilograms of impregnation bamboo bundles, 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, to its typing of colding pressing, the slab target density is controlled at 0.70g/cm with the cold stamping die press
3, be compressed to target setting density after, with steel plate and pin locking die, prevent that the slab bounce-back from replying, slab is of a size of after the compression: 1.0m (length) * 0.15m (wide) * 0.30m (thick);
(7) veneer strip and bamboo bundle mixing slab are together sent into the tunnel type equipment that is heating and curing together with mould, the temperature of the equipment that is heating and curing is controlled at 140 ℃, and solidifying the processing time is 12 hours;
(8) be heating and curing finish after, will mix slab and place indoor displaying 16 hours together with mould, after slab cools off fully, adopt the form removal machine with mould with solidify after the Recombined bamboo flitch separate;
(9) close the storing up of Recombined bamboo flitch after will solidifying put, and carries out Balance Treatment, deposits 14 days, reduces the heat in the slab, wet stress;
(10) in length and breadth cutting edge of Recombined bamboo flitch;
(11) adopting multiple blade saw or buck saw through-thickness is that thickness is the Recombined bamboo wood saw material of 15mm with Recombined bamboo flitch subdivision.
Embodiment 2:
(1) adopt the bamboo wood rolling apparatus that mao bamboon is discongested and be length 1920mm, width is the bamboo bundle of 25mm, and adopting the conventional kiln drying (kd) method that true qualities bamboo bundle is dried to moisture content is 12% again;
(2) adopting the flat-cut machine is that the willow log of 1920mm is processed into the flat-cut veneer that thickness is 2.5mm with length, the flat-cut veneer is stacked neatly, directly send in the high temperature high pressure process tank after loading onto the material car, the saturated vapor of supplying with boiler carries out the charing processing to the flat-cut board using poplar board, the pressure of steam in the process tank is controlled at 0.4MPa, charing was processed 1.5 hours, was coffee-like with the veneer charing;
(3) adopting the conventional kiln drying (kd) method is 10% with the carbonized poplar veneer drying to moisture content, and the recycling veneer clipper is cut into the veneer strip that width is 25mm along vertical parallel-to-grain shear of veneer with board using poplar board;
(4) bamboo bundle and veneer strip are carried out dipping process, impregnation process liquid employing solids content is 30% phenolic resins, floods at normal temperatures and pressures, and dip time is 8min;
(5) adopt the conventional kiln drying (kd) method that impregnation bamboo bundle and veneer strip are carried out the drying processing, its moisture content is dried to 8%, in the dry run, the temperature of drying medium is controlled in 65 ℃;
(6) take by weighing 64.8 kilograms impregnation veneer strip and impregnation bamboo bundle, wherein the impregnation veneer strip is 26.80 kilograms, 38 kilograms of impregnation bamboo bundles, 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, to its typing of colding pressing, the slab target density is controlled at 0.75g/cm with the cold stamping die press
3, be compressed to target setting density after, with steel plate and pin locking die, prevent that the slab bounce-back from replying, slab is of a size of after the compression: 1.92m (length) * 0.15m (wide) * 0.30m (thick);
(7) veneer strip and bamboo bundle mixing slab are together sent into the tunnel type equipment that is heating and curing together with mould, the temperature of the equipment that is heating and curing is controlled at 130 ℃, and solidifying the processing time is 14 hours;
(8) be heating and curing finish after, will mix slab and place indoor displaying 20 hours together with mould, after slab cools off fully, adopt the form removal machine with mould with solidify after the Recombined bamboo flitch separate;
(9) close the storing up of Recombined bamboo flitch after will solidifying put, and carries out Balance Treatment, and the resting period is controlled at 20 days, reduces the heat in the slab, wet stress;
(10) in length and breadth cutting edge of Recombined bamboo flitch;
(11) adopting multiple blade saw or buck saw through-thickness is that thickness is the Recombined bamboo wood saw material of 20mm with Recombined bamboo flitch subdivision.
Willow is one of China topmost three large quick-growing plantation seeds, the characteristics such as poplar wood has that material is soft, hardness is little, intensity and density are low.In the production process of Recombined bamboo, adopt the carbonized poplar board using poplar board bar that material is soft, hardness is little, hardness is low to replace part to discongest true qualities bamboo bundle, can guarantee that Recombined bamboo has under the prerequisite of enough packings, reduce Recombined bamboo density, improve its transverse strength and dimensional stability, effectively alleviate that Recombined bamboo in use ftractures, the appearance of wrinkling and deformation defect, and make it have speckle shape decorative pattern, improve its decorate properties.Thereby improve the Recombined bamboo quality, realize the high materialization utilization of bamboo wood and inferior grade Poplar Resource.
The present invention has overcome existing Recombined bamboo and has existed that color is single, density is excessive, and transverse strength is low, in use produces easily the defective of cracking, wrinkling and distortion.Adopt material carbonized poplar veneer strip and true qualities bamboo Shu Jinhang rift grain softer, that density is low, hardness is little to mix assembly, can keep Recombined bamboo to have under the prerequisite of enough packings, reduce Recombined bamboo density, improve its transverse strength and dimensional stability, effectively alleviate that Recombined bamboo in use ftractures, the appearance of wrinkling and deformation defect, and make it have speckle shape decorative pattern, improve decorate properties, improved added value of product.
The Recombined bamboo wood decoration material of employing present embodiment production can be used as the manufacturing of floor, indoor and outdoor ornament materials and Engineered Wood Products.
The method of the manufacturing Recombined bamboo wood decoration material that the embodiment of the invention provides, at first bamboo Shu Jinhang is discongested processing, be veneer with the willow rounding simultaneously, again board using poplar board is carried out charing, drying and shear treatment, then with phenolic resins bamboo bundle and board using poplar board are carried out impregnation and redrying processing, the typing of colding pressing at last, be heating and curing, the balance modulation is processed with the later stage finishing, produce and have the speckle decorative effect, density is lower, the novel Recombined bamboo wood decoration material that good stability of the dimension and horizontal integration intensity are high, 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 of producing by the method can be widely used in the floor, the manufacturing of indoor and outdoor ornament materials and Engineered Wood Products, practical, have stronger propagation and employment and be worth.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. method of making Recombined bamboo wood decoration material is characterized in that the method may further comprise the steps:
Step 1, Shu Jinhang discongests processing to bamboo, is veneer with the willow rounding simultaneously, and board using poplar board is carried out charing, drying and shear treatment;
Step 2 is carried out impregnation and redrying processing with phenolic resins to bamboo bundle and board using poplar board;
Step 3, the bamboo bundle after impregnation and redrying processed and board using poplar board bar cold pressing typing, be heating and curing, balance modulation and later stage finishing processing.
2. method according to claim 1 is characterized in that, in the step 1, the implementation method of bamboo Shu Jinhang being discongested processing is:
Adopt the bamboo wood rolling apparatus that mao bamboon is discongested and be length 1000-2000mm, width is the bamboo bundle of 10-50mm, and the bamboo bundle after discongesting does not laterally rupture, and is vertically 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%.
3. method according to claim 1 is characterized in that, in the step 1, is veneer with the willow rounding, and to the implementation method that board using poplar board carries out charing, drying and shear treatment is:
Adopting the flat-cut machine 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 with length;
The flat-cut board using poplar board is stacked neatly, directly send in the high temperature high pressure process tank after putting into the material car, the saturated vapor of supplying with boiler carries out the charing processing to the flat-cut board using poplar board, the pressure of steam in the process tank is controlled between the 0.3-0.5MPa, charing was processed 1-4 hour, was coffee-like with the board using poplar board charing;
Adopting conventional kiln drying (kd), net belt type drying or gas drying method is 6-15% with the carbonized poplar veneer drying to moisture content;
Utilize the board using poplar board cutter along vertical parallel-to-grain shear of board using poplar board, board using poplar board is cut into the veneer strip that width is 10-50mm.
4. method according to claim 1 is characterized in that, in the step 2, with phenolic resins bamboo bundle and board using poplar board is carried out the implementation method that impregnation and redrying process and is:
When bamboo bundle and board using poplar board bar were carried out dipping process, it was the phenolic resins of 20-45% that impregnation process liquid adopts solids content, dipping at normal temperatures and pressures, and dip time is 1-20min;
Adopt conventional kiln drying (kd) or net belt type drying means that impregnation bamboo bundle and board using poplar board bar are carried out the drying processing, its moisture content is dried to 6-12%, in the dry run, the temperature of drying medium is controlled in 75 ℃.
5. method according to claim 1 is characterized in that, in the step 3, the bamboo bundle after impregnation and redrying processed and board using poplar board cold pressing typing, be heating and curing, the balance modulation with the implementation method of later stage finishing processing is:
Dried impregnation board using poplar board bar and true qualities bamboo bundle are put into mould with locking device in the same direction, and to its typing of colding pressing, the slab target density is controlled at 0.60-0.90g/cm with the cold stamping die press
3, be compressed to target setting density after, with steel plate and pin locking die, prevent that the slab bounce-back from replying, 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, be compressed to target density after, the length of slab equals the length of board using poplar board bar or bamboo bundle, width of plate slab is between 100-400mm, slab thickness is between 100-500mm;
Board using poplar board bar and bamboo bundle mixing slab are together sent into the tunnel type equipment that is heating and curing together with mould, and the temperature of the equipment that is heating and curing is controlled at 120-160 ℃, and solidifying the processing time is 6-16 hour;
Be heating and curing finish after, will mix slab and place the indoor 12-24 of displaying hour together with mould, after slab cools off fully, adopt the form removal machine with mould with solidify after the Recombined bamboo flitch separate;
Close the storing up of Recombined bamboo flitch after solidifying put, carry out Balance Treatment, the resting period is controlled at 10-30 days, reduces the heat in the slab, wet stress;
The in length and breadth cutting edge of Recombined bamboo flitch, adopting multiple blade saw or buck saw through-thickness is that thickness is the Recombined bamboo wood saw material of 10-30mm with Recombined bamboo flitch subdivision.
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