CN202097789U - Small-diameter bamboo gluing formwork - Google Patents
Small-diameter bamboo gluing formwork Download PDFInfo
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- CN202097789U CN202097789U CN 201120011025 CN201120011025U CN202097789U CN 202097789 U CN202097789 U CN 202097789U CN 201120011025 CN201120011025 CN 201120011025 CN 201120011025 U CN201120011025 U CN 201120011025U CN 202097789 U CN202097789 U CN 202097789U
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- Prior art keywords
- bamboo
- dwarf
- gluing
- dwarf bamboo
- mat
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Abstract
The utility model discloses a small-diameter bamboo gluing formwork, comprising at least one layer of small-diameter bamboo gluing dimension board which is aged by rubber coating, and at least one layer of knitting bamboo mat; and the small-diameter bamboo gluing dimension board that is aged by rubber coating and the knitting bamboo mat are sequentially superposed and glued together in a hot pressing way. The density of the bamboo gluing formwork is 0.85 to 0.90g/cm3; the water content is 8 to 10%; the longitudinal static yield strength is more than 80MPa; the transverse static yield strength is more than 40MPa; the gluing strength is more than 3MPa; and the elastic modulus of bending is more than 11GPa. Therefore, the bamboo gluing formwork can completely meet the usage requirement when being used as the building formwork.
Description
Technical field
The utility model relates to a kind of dwarf bamboo bamboo plywood form.
Background technology
Along with the industrialized development of China's building trade, adopt the structure of cast-in-place concrete construction technology more and more, also increasing to the demand of template; China's Forest Resources is very poor, and traditional plank sheathing can't satisfy the needs that building trade is produced; Bamboo plywood form is a kind of new type of engineering structural material that grew up in recent years; Use it for building template; Have that intensity is big, good rigidly, the moisture expantion rate is low, the demoulding fast, be prone to clean, corrosion-resistant, advantage such as life cycle is long; And the aboundresources of raw material bamboo wood upgrades soon, so bamboo plywood form has the trend that progressively replaces traditional plank sheathing naturally.
The bamboo plywood form of conventional processing is to adopt the laterally broken processing technology of slighing; This technology has been removed surf green part and the not good tabasheer part of material that contains wax coat; The volume recovery very low (greatly about about 25～30%) that is fit to processing bamboo plywood form bamboo chip; And can not utilize diameter less than the dwarf bamboo below the 6mm, seriously influence effective utilization of bamboo plywood form price and bamboo wood.Therefore, develop a kind of brand-new low cost, high-quality bamboo plywood form, satisfy building trade and produce growing needs, become urgent problem.
The utility model content
The technical problem that the utility model will solve provides a kind of dwarf bamboo bamboo plywood form, and this bamboo plywood form can satisfy building trade and produce growing needs.
In order to address the above problem; The utility model provides a kind of dwarf bamboo bamboo plywood form to comprise: one deck is through the dwarf bamboo of gluing ageing gummed dimension board and the braiding bamboo mat of one deck at least at least; Said dwarf bamboo gummed dimension board through the gluing ageing stacks gradually assembly with the braiding bamboo mat, and through hot-press gluing together.
Preferably; The sheet material with suitable thickness of said dwarf bamboo gummed dimension board for forming by the sawing of dwarf bamboo laminated timber; The blank of said dwarf bamboo laminated timber for being formed by range upon range of assembly of dwarf bamboo combing material and pressing, said dwarf bamboo combing material surface impregnation has one deck resin glue.
Preferably, said dwarf bamboo combing material is that said tiny sundry bamboo comprises that diameter is green bamboo, sinocalamus latiflorus, bambusa textile, lingnania chugii, bambusa texlitis or the mao bamboon of 2～6cm through the tiny sundry bamboo after the combing.
Preferably, said dwarf bamboo combing material is for being coffee-like dwarf bamboo combing material through the charing treatment surface.
Preferably; Also comprise impregnated paper; Said impregnated paper is layered at least one surface of the blank that said dwarf bamboo gummed dimension board through the gluing ageing and braiding bamboo mat assembly form, and through hot pressing with said through the gluing ageing dwarf bamboo gummed dimension board and to weave bamboo mat glued together.
Density 0.85～the 0.90g/cm of the bamboo plywood form of the utility model
3, moisture content 8～10%, vertical MOR＞80MPa, horizontal MOR＞40MPa, bonding strength＞3MPa, bending resistance elastic modelling quantity＞11GPa.Therefore, the bamboo plywood form of the utility model can satisfy the instructions for use as building template fully.
Description of drawings
Fig. 1 is the utility model dwarf bamboo combing lamination material forming mould structure sketch map;
Fig. 2 is the utility model bamboo plywood form assembly sketch map.
The specific embodiment
The concrete processing step of the utility model is following:
Step 1: fell 3-4 and give birth to dwarf bamboo, remove the foreign material that bamboo does, with the dried bamboo section that is cut into specification length of bamboo.The foreign material here comprise branches and leaves etc.; In addition, the dwarf bamboo in step 1 is a tiny sundry bamboo; Tiny sundry bamboo comprises that diameter is 2～6cm green bamboo, sinocalamus latiflorus, bambusa textile, lingnania chugii, bambusa texlitis or mao bamboon.
Step 2: the bamboo section of dwarf bamboo is put into the combing processing that the bamboo wood carding equipment carries out dwarf bamboo.Combing in step 2 processing is to adopt the bamboo section of dwarf bamboo is put into the bamboo wood carding equipment, the processing of dwarf bamboo being carried out through the mode that rolls.Dwarf bamboo combing material after the combing has suitable width and thickness gets final product.
Step 3: the dwarf bamboo combing material that combing processes is put into the timber cooker, feed 110～150 ℃ superheated steam charing 60～180 minutes, make dwarf bamboo combing material be coffee-like.In step 3, preferably feed 120 ℃ superheated steam charing 120 minutes, make dwarf bamboo combing material be coffee-like.
Step 4: the dwarf bamboo combing material that charing processes is put into the lumber kiln drying, and baking temperature is 100～110 ℃, and be 12～24 hours drying time, and the moisture content of dry back material is controlled at 8～10%.
Step 5: dried dwarf bamboo combing material is immersed in the phenolic resins glue of 40% solid content, and weighting material is immersed in the phenolic resins glue it fully, takes out after 20～30 minutes to drain, and stacks subsequent use.Phenolic resins solid content in step 5 is 43.34%, and viscosity is 89cps, and pH value is 12.8, and density is 1.199g/cm
3
Step 6: will soak the range upon range of assembly of dwarf bamboo combing material of phenolic resins glue, pressurization is closely knit in cold press.Specifically: the dwarf bamboo combing material 4 that will soak phenolic resin glue is put into square type groove 1, and is as shown in Figure 2, and pressurization is closely knit in cold press again, and the cold press moulding pressure is 1.5MPa.After finishing, pressurization in square type groove 1, puts into the thick upper cover plate of 10mm 2, and fixing with stop pin 3 immediately, prevent dwarf bamboo combing material 4 resiliences of compacting.
Step 7: dwarf bamboo combing material dry solidification in dry kiln that will pressurize after closely knit becomes the dwarf bamboo laminated timber, and baking temperature is 120～170 ℃, and be 10～24 hours drying time.
Step 8: dwarf bamboo laminated timber after will solidifying fully takes out, and places after 48～72 hours, utilizes the joiner pony hand-saw that the dwarf bamboo laminated timber is processed into the dwarf bamboo laminated timber dimension board of thickness 6mm, and is subsequent use.
Step 9: fell 3-4 setation bamboo, be cut into the bamboo section of predetermined dimension length, the bamboo section is removed surf green and tabasheer earlier behind subdivision, laterally breaks and slights, and the bamboo of being processed into thickness 1mm is slightd sheet.In step 9, slight quality and volume recovery in order to guarantee the bamboo that weaves bamboo mat, the mao bamboon of employing preferably the termination diameter in the fresh mao bamboon of the zero defect more than 10 centimetres.
Step 10: utilize thin bamboo strip curtain braider or manual bamboo is slightd sheet be woven into the view picture bamboo mat, will weave good bamboo mat again and put in the dry kiln dryly, baking temperature is 80～120 ℃, and be 10～30 minutes drying time, dry after the moisture content of bamboo mat be controlled at 8～10%.In step 10, utilize thin bamboo strip curtain braider or manual bamboo is slightd sheet be woven into the view picture bamboo mat, bamboo mat is generally the herringbone effect braiding, promptly vertical, the orthogonal thin bamboo strips used for weaving of transverse direction, through interweaving of " choosing " and " pressure " each other, the formation bamboo mat.The utility model is by " choose one press one " braiding, when a mat braiding reaches the breadth of regulation, to around the thin bamboo strips used for weaving of the two-layer different directions arrangement that grows to carry out the bound edge place and bury.
Step 11:, pour Jiao Chizhong into the phenol resin solution of 40% solid content; Bamboo mat is put into the glue pond, flood and shift out Jiao Chi after 4～10 minutes, migration drop glue groove is overhead, and drop removes unnecessary glue;
Step 12: the bamboo mat that will soak glue takes out, and puts into low temperature drying on the mesh dryer, and 60～80 ℃ of baking temperatures are made the braiding bamboo mat.In step 12, soaked the bamboo mat low temperature drying time of glue and decided final water content requirement≤10% of bamboo mat by the final moisture content of bamboo mat.
Step 13: the preparation of impregnated paper and processing; The sulfate wood pulp paper that impregnated paper adopts, it is that the final impregnating resin content of required dip time sulfate wood pulp paper is decided with dry back these two indexs of volatile content in 20～50% the impregnated phenolic resin glue that sulfate wood pulp paper is immersed solid content; The final impregnating resin content of sulfate wood pulp paper is 50%～90%, and dry back volatile content is 10%～15%; Take out the sulfate wood pulp paper of impregnated phenolic resin glue, be placed on low temperature drying on the drying machine, 50～80 ℃ of dry temperature, be as the criterion with the no longer sticking hand of the sulfate wood pulp paper of impregnated phenolic resin glue drying time.
Step 14: the thick dwarf bamboo laminated timber of the 6mm that processes dimension board is sent into the glue spreader gluing, and adhesive adopts the phenol resin solution of 40% solid content, and glue-spread adopts 220～300g/m
2(two-sided), with the ageing of the thick dwarf bamboo laminated timber of 6mm stock board opening, digestion time was 2～6 hours after gluing was accomplished.2 hours general autumns in summer of digestion time, 6 hours winters in spring.
Step 15: with the dwarf bamboo laminated timber dimension board of impregnated paper, bamboo mat and completion ageing by predetermined requirement assembly, hot pressing.In the utility model embodiment, the assemble pattern of employing is: first impregnated paper 11, first that stacks gradually assembly weaves bamboo mat 12, the first dwarf bamboo laminated timber dimension board 13, second through the gluing ageing weaves bamboo mat 14, second dwarf bamboo laminated timber dimension board 15, the 3rd braiding bamboo mat 16, second impregnated paper 17 through the gluing ageing.But assemble pattern is not limited to this, preferably weaves bamboo mat and staggered successively stacked through the bamboo cord wood dimension board of gluing ageing.After hot pressing was accomplished, the slab of bamboo plywood form needed the placement through 24 hours, again through cutting edge, grade, inspection process, produce the high-quality bamboo plywood form that satisfies quality requirement.In step 15, it is hot-forming to send into hot press by the Bamboo Formwork of Fig. 3 requirement assembly; In hot-forming process, the hot pressing pressure of selection is 2～3Mpa, 135～155 ℃ of hot pressing temperatures, and hot pressing time is pressed the assembly thickness * 1.2 minute/mm THICKNESS CALCULATION of Bamboo Formwork slab.
The advantage of the utility model is: the bamboo plywood form that adopts the processing method of the utility model to produce can effectively utilize aboundresources, and cheap dwarf bamboo is produced low cost, high-quality bamboo plywood form.The density of bamboo plywood form is undertaken by 4.2 density measurements regulation among the GB/T 17657-1999; The moisture content test of bamboo plywood form is undertaken by 4.3 measurement of water-content coefficient regulation among the GB/T 17657-1999; The method that the vertical and horizontal MOR test of bamboo plywood form is measured regulation by 4.9 MORs among the GB/T 17657-1999 is carried out; The bending resistance elasticity modulus test of bamboo plywood form is undertaken by the method for 4.9 elastic modulus detection regulation among the GB/T 17657-1999; The glue performance of bamboo plywood form is undertaken by the test method that 4.17 dipping stripping performances among the GB/T17657-1999 are measured the I class thin plate of regulation.
Density 0.85～the 0.90g/cm of bamboo plywood form
3, moisture content 8～10%, vertical MOR＞80MPa, horizontal MOR＞40MPa, bonding strength＞3MPa, bending resistance elastic modelling quantity＞11GPa.Therefore, the bamboo plywood form through the utility model preparation can satisfy the instructions for use as building template fully.
In addition, adopt brand-new bamboo plywood form production technology, effectively utilize aboundresources, cheap dwarf bamboo can reduce the manufacturing cost of bamboo plywood form greatly.
In addition, after the bamboo plywood form made from the utility model is discarded, can decompose under field conditions (factors), not pollute the environment; Also can be used for the manufacturing of bamboo shaving plate through the method that reclaims, turn waste into wealth, help resource circulation and utilize again.
In sum; More than be merely the preferable possible embodiments of the utility model; Be not so promptly limit the protection domain of the utility model; So allly be used in the equivalent structure that the utility model specification and accompanying drawing content done and change and changes in material, any modification of being done within spirit and the principle etc. all should be included within the protection domain of the utility model.
Claims (5)
1. dwarf bamboo bamboo plywood form; It is characterized in that; Comprise: at least one deck through the dwarf bamboo of gluing ageing gummed dimension board and the braiding bamboo mat of one deck at least, said dwarf bamboo gummed dimension board through the gluing ageing with weave bamboo mat and stack gradually assembly, and together through hot-press gluing.
2. a kind of dwarf bamboo bamboo plywood form as claimed in claim 1; It is characterized in that; The sheet material of said dwarf bamboo gummed dimension board for forming by the sawing of dwarf bamboo laminated timber; The blank of said dwarf bamboo laminated timber for being formed by range upon range of assembly of dwarf bamboo combing material and pressing, said dwarf bamboo combing material surface impregnation has one deck resin glue.
3. a kind of dwarf bamboo bamboo plywood form as claimed in claim 2 is characterized in that, said dwarf bamboo combing material is that said tiny sundry bamboo comprises that diameter is green bamboo, sinocalamus latiflorus, bambusa textile, lingnania chugii, bambusa texlitis or the mao bamboon of 2～6cm through the tiny sundry bamboo after the combing.
4. a kind of dwarf bamboo bamboo plywood form as claimed in claim 3 is characterized in that, said dwarf bamboo combing material is for being coffee-like dwarf bamboo combing material through the charing treatment surface.
5. like the arbitrary described a kind of dwarf bamboo bamboo plywood form of claim 1 to 4; It is characterized in that; Also comprise impregnated paper; Said impregnated paper is layered at least one surface of the blank that said dwarf bamboo gummed dimension board through the gluing ageing and braiding bamboo mat assembly form, and through hot pressing with said through the gluing ageing dwarf bamboo gummed dimension board and to weave bamboo mat glued together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120011025 CN202097789U (en) | 2011-01-14 | 2011-01-14 | Small-diameter bamboo gluing formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120011025 CN202097789U (en) | 2011-01-14 | 2011-01-14 | Small-diameter bamboo gluing formwork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202097789U true CN202097789U (en) | 2012-01-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120011025 Expired - Fee Related CN202097789U (en) | 2011-01-14 | 2011-01-14 | Small-diameter bamboo gluing formwork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202097789U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110576481A (en) * | 2019-10-09 | 2019-12-17 | 南平市华泰木竹有限公司 | Novel bamboo-wood restructuring structure processing technology |
-
2011
- 2011-01-14 CN CN 201120011025 patent/CN202097789U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110576481A (en) * | 2019-10-09 | 2019-12-17 | 南平市华泰木竹有限公司 | Novel bamboo-wood restructuring structure processing technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20190114 |