CN102490218A - Production method and manufacture process for mine timbers - Google Patents
Production method and manufacture process for mine timbers Download PDFInfo
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- CN102490218A CN102490218A CN2011103918971A CN201110391897A CN102490218A CN 102490218 A CN102490218 A CN 102490218A CN 2011103918971 A CN2011103918971 A CN 2011103918971A CN 201110391897 A CN201110391897 A CN 201110391897A CN 102490218 A CN102490218 A CN 102490218A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 230000008569 process Effects 0.000 title claims abstract description 9
- 230000006835 compression Effects 0.000 claims abstract description 13
- 238000007906 compression Methods 0.000 claims abstract description 13
- 241000219000 Populus Species 0.000 claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims abstract description 8
- 230000001070 adhesive effect Effects 0.000 claims abstract description 8
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims abstract 2
- 238000007731 hot pressing Methods 0.000 claims description 12
- 238000007711 solidification Methods 0.000 claims description 5
- 230000008023 solidification Effects 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical class OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 238000003892 spreading Methods 0.000 claims description 2
- 230000007480 spreading Effects 0.000 claims description 2
- 235000013339 cereals Nutrition 0.000 claims 2
- 210000001503 joint Anatomy 0.000 claims 2
- IWLBIFVMPLUHLK-UHFFFAOYSA-N azane;formaldehyde Chemical compound N.O=C IWLBIFVMPLUHLK-UHFFFAOYSA-N 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 235000013312 flour Nutrition 0.000 claims 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims 1
- 238000004826 seaming Methods 0.000 claims 1
- 239000011435 rock Substances 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 230000003204 osmotic effect Effects 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 239000002023 wood Substances 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 238000005065 mining Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract description 2
- 239000007795 chemical reaction product Substances 0.000 abstract 4
- 229920001807 Urea-formaldehyde Polymers 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 150000003672 ureas Chemical class 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 230000008093 supporting effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 239000004640 Melamine resin Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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Abstract
The invention relates to a method and a manufacture process (figures) using growing poplar rotary cutting veneers to produce mine timbers, which mainly resolves the problems that mine supports cannot meet requirements of highly concentrated stress of surrounding rock of deep mining areas, large osmotic pressure of underground water and gradient rising of ground temperature. The production method and the manufacture process are characterized in that apparent density (actual measurement) of the growing poplar rotary cutting veneers is used to confirm density of end product mine timbers according to density of wood; and compression ratio can be accumulated through ratio between densities, and the thickness of one-time mine timber assembly can be decided through the compression ratio. Modified urea resin and melamine formaldehyde resin are used to be mixed to form adhesives. Technological parameters of one-time assembly can be decided according to the compression ratio and curing temperature, time and pressure. When the one-time assembly is finished, a secondary assembly is processed, and finally end product mine timbers are finished. The production method and the manufacture process have the advantages that the mechanical strength of end products is 1.5 times of natural solid wood, ratio of strength to weight is better than steel, and end products are good in fireproof performance, waterproof performance, shock resistance and creep deformation resistance, even in mass and capable of substituting metal supports.
Description
Technical field
The present invention relates to the living poplar rotary cut venner of a kind of utilization speed, mine main is with the method and the manufacturing process of mine timber.
Background technology
For a long time, used supporting has timbering (mine timber), frictional metal chock (anchor pole), monomer liquid pressure type pillar in the China's coal-mine exploitation.These several kinds of rack forms all are suitable for the roadway support in exploiting field, superficial part coal seam.But the superficial part resource has moved towards exhausted now, and seam mining extends to the deep.At present mining depth all surpasses 800 meters, have in addition surpassed 1000 meters.Owing to do not understand the deformation fracture mechanism of deep tunnel country rock and shallow workings country rock; Ambient stress exists huge difference; So still adopt shallow workings country rock bracket support commonly used; Cause anchor metal under the stress of high concentration, the underground flood peak osmotic pressure strengthens, geothermal gradient raises, and is broken under the changeable situation of terrain environment.Various ways supportings such as U-shaped steel support unit serious distortion were lost efficacy, and roadway deformation reaches 1-2m.Adopt which kind of bracket support could solve colliery deep tunnel surrouding rock stress and concentrate, the underground flood peak osmotic pressure is big, and geothermal gradient raises, the difficult point that terrain environment is changeable, and this is a urgent problem.
Summary of the invention:
The present invention concentrates for the existing bracket support of solution can not satisfy the deep tunnel surrouding rock stress, and the underground flood peak osmotic pressure is big, and geothermal gradient raises, the changeable problem of terrain environment.
For addressing the above problem, the invention provides a kind of method and manufacturing process of utilizing the living poplar rotary cut venner assembly mine main mine timber of speed.This method is at first measured the apparent density of the living poplar rotary cut venner moisture content of speed below 5-7%; Confirm the density of finished product mine timber according to the density of timber; With the ratio of the density of the apparent density of rotary cut venner and finished product mine timber, confirm compression ratio; Confirm the thickness of an assembly of mine timber with compression ratio; The adhesive consumption; Adhesive adopts modified urea-formaldehyde resin and melamine resin blend; According to compression ratio, adhesive solidification temperature, time, pressure, confirm temperature, pressure, time, technological parameter required when an assembly is suppressed.After treating that an assembly finishes, carry out the secondary assembly by required mine timber size, carry out precompressed behind the assembly, sawing becomes required mine timber size after the precompressed, carries out hot pressing again, and hot pressing time, temperature, pressure are confirmed according to thickness, the adhesive of secondary assembly.Reach and satisfy the problem that deep tunnel country rock bracket support needs solve.
Following advantage and beneficial effect have been compared in supporting under the present invention and the existing well: 1, practice thrift timber and reduce cost.2, finished product has the mechanical strength above 1.5 times of woods.3, the higher ratio of strength to weight is arranged, hot strength is 4 times of iron, and compressive strength is concrete 5 times, and the ratio of strength to weight more is superior to steel.4, finished product has excellent fireproof performance and resistance to elevated temperatures, and anti-fire ability is not less than 2h, is superior to the steel fire resistance.5, inherited the wood characteristic, good weatherability, anti-seismic performance is strong, and good shock resistance is arranged, and creep-resistant property is good.6, quality is even, and variability is little, and change rate of strength is below 12%.
Description of drawings:
Describe the present invention below in conjunction with accompanying drawing
Accompanying drawing 1: the technological process of production block diagram of mine mine timber of the present invention
A veneer arrangement → veneer gluing → veneer splicing → assembly → precompressed → hot pressing → second glue spreading → secondary assembly → precompressed → sawing → hot pressing → moulding
An assembly form of accompanying drawing 2 mine mine timbers of the present invention sketch map
Accompanying drawing 3: be accompanying drawing 21 veneer splicing sketch mapes
Accompanying drawing 4: be accompanying drawing 22 veneer splicing sketch mapes
Accompanying drawing 5: be accompanying drawing 23 veneer splicing sketch mapes
Accompanying drawing 6: be accompanying drawing 24 veneer splicing sketch mapes
Accompanying drawing 7: be secondary assembly sketch map
In the accompanying drawing 3: 5 veneers (615 * 1220mm) 6 press strips (20 * 615mm)
In the accompanying drawing 4: 7 veneers (615 * 610mm)
In the accompanying drawing 5: 8 veneers (615 * 910mm) 9 veneers (310 * 615mm)
In the accompanying drawing 7: 10 glue-lines, 11 sawing lines
The specific embodiment:
The method that the present invention adopts is: 1, confirm the section of getting the raw materials ready parameter.(1) confirm poplar rotary cut venner apparent density, finished product mine timber density is confirmed according to the density of timber in (2), and compression ratio is tried to achieve with the rotary cut venner apparent density and the ratio of finished product mine timber density in (3), and an assembly thickness (number of plies), weight are confirmed with compression ratio in (4).2, confirm technological parameter in the pressing process.(1) with an assembly thickness, required temperature, pressure, time when adhesive solidification required time, temperature, pressure, assembly moisture content are confirmed the compacting of assembly.(2) according to assembly compact dimensions and actual required finished product mine timber cross dimensions, confirm secondary assembly thickness.(3) according to secondary assembly thickness, confirm glue-line number, glue consumption.Temperature, pressure, time when (4) confirming compacting according to glue consumption.
Embodiment: the mine timber of making 180 * 180 * 2400mm
1, preparatory stage parameter: (1) rotary cut venner moisture content is below 7%, specification 615 * 1220 * 3, density 0.308g/cm
3(2) with reference to density of wood 0.40-0.80g/cm
3Get finished product mine timber density 0.60g/cm
3(3) confirm compression ratio: finished product mine timber density ÷ rotary cut venner density=0.6 ÷ 0.3=2, confirm assembly thickness 60mm one time, the veneer assembly is seen accompanying drawing 2,3,4,5,6, form (20 layers).(4) confirm resin added: by every m
2165-220g.
Technological parameter when 2, confirming compacting.(1) modified urea-formaldehyde resin solidification temperature 105-125 ℃, time 5mm-10mm, pressure 2MPa, 125 ℃ of melamine formaldehyde resin solidification temperatures, time 5-8min, pressure 2.0-2.5Mpa.(2) confirm hot compression parameters: 145 ℃-170 ℃ of press temperatures.Precooling pressure 3.0-4.0MPa, hot pressing pressure 2.5-3.5Mpa, time 20-30s/mm, slab thickness is 30mm after the assembly moulding.
3, carry out the secondary assembly.By the requirement of mine timber dimensional thickness 180mm, with 6 slabs that 30mm is thick, behind the gluing assembly together, it is thick to be of a size of 180mm; Width is 615mm, and length 2440mm carries out precompressed and colds pressing; Pressure is 3.0-4.0Mpa, and squeeze time 30-60min saws then and processes 180 * 180 * 2400 mine timber material; Carry out hot pressing, hot pressing temperature 145-170 ℃, hot pressing time 60-90min.
Claims (9)
1. the method and the manufacturing process of the living poplar rotary cut venner mine main mine timber of speed is characterized in that: the living poplar rotary cut venner apparent density of speed below the actual measurement moisture content 5-7%.Confirm finished product mine timber density according to the timber apparent density.Ratio with two density is obtained compression ratio, confirms assembly thickness, assembly form one time with compression ratio.Confirm assembly pressing process parameter one time with assembly thickness, adhesive consumption, solidification temperature, pressure, time.
2. according to the said method of claim 1, it is characterized in that the living poplar rotary cut venner thickness 2-3mm apparent density of said moisture content 5-7% speed is 0.3～0.4g/cm
3
3. according to the said method of claim 1, it is characterized in that said density according to timber is confirmed the density 0.6～0.65%g/cm of finished product mine timber
3
4. according to the said method of claim 1, it is characterized in that the living poplar rotary cut venner of said speed apparent density is tried to achieve compression ratio 1.5～2.0 with the ratio of finished product mine timber density.
5. according to the said method of claim 1, it is characterized in that the said adhesive of using is modified urea-formaldehyde resin, flour, curing agent, melamine amine formaldehyde resin blend, weight ratio 100%: 10%: 0.4-0.8%: 30-35%.
6. according to the said method of claim 1, it is characterized in that a said assembly pressing process parameter: precompressed cold pressure 2.0-3.0Mpa, time 60-90min, hot pressing temperature 145-180 ℃, pressure 3.0-4.0Mpa, time 30-60min.Secondary assembly precompression 3.0-4.0Mpa, time 60-90min, hot pressing temperature 145-170 ℃, pressure 2.5-3.5Mpa, time 40-80min.
7. one kind is used to realize that the said speed of claim 1 living poplar rotary cut venner mine main mine timber method and manufacturing process comprise: veneer arrangement, veneer gluing, veneer splicing, assembly, precompressed, hot pressing, second glue spreading, secondary assembly, precompressed, sawing, hot pressing, moulding.
8. said according to Claim 8 method is characterized in that, a said assembly form should be with single width, veneer, rift grain butt joint, and butt joint leaves the 1.0-1.5mm slit, with 10-20mm wide (rift grain), and thickness 10-15 road thin plate tooled joint.
9. said according to Claim 8 method, it is levied the spy and is the upper and lower veneer seaming position of the said assembly 300-600mm that should stagger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103918971A CN102490218A (en) | 2011-12-01 | 2011-12-01 | Production method and manufacture process for mine timbers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103918971A CN102490218A (en) | 2011-12-01 | 2011-12-01 | Production method and manufacture process for mine timbers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102490218A true CN102490218A (en) | 2012-06-13 |
Family
ID=46182100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103918971A Pending CN102490218A (en) | 2011-12-01 | 2011-12-01 | Production method and manufacture process for mine timbers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102490218A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0374518A (en) * | 1989-08-11 | 1991-03-29 | Yanmar Diesel Engine Co Ltd | Air cooler for engine |
| CN2224709Y (en) * | 1994-11-19 | 1996-04-17 | 上海钢琴公司 | Composite paulownia |
| US20050139287A1 (en) * | 2003-12-24 | 2005-06-30 | Meinan Machinery Works, Inc. | Veneer lathe and method of cutting wood block by the veneer lathe |
| CN2923236Y (en) * | 2006-03-08 | 2007-07-18 | 冯士祥 | Hard wood plate material |
| CN101069971A (en) * | 2007-06-07 | 2007-11-14 | 林文信 | Pure china-fir three-layer real-wood integrated material and making method |
| CN201009310Y (en) * | 2007-03-14 | 2008-01-23 | 华商技研(天津)家具有限公司 | Fast growing forest tree consequent veneer |
| CN201030599Y (en) * | 2007-02-12 | 2008-03-05 | 锦州市福山木业有限责任公司 | Same-texture split joint adhesive-bonded panel |
| CN201098930Y (en) * | 2007-09-29 | 2008-08-13 | 祃平原 | Veneer composite board |
| JP4209982B2 (en) * | 1999-01-14 | 2009-01-14 | 株式会社太平製作所 | Method for manufacturing plate material using lace single plate material |
| JP2009073148A (en) * | 2007-09-25 | 2009-04-09 | Panasonic Electric Works Co Ltd | Production method of wooden flooring |
| CN201881443U (en) * | 2010-11-05 | 2011-06-29 | 中国林业科学研究院木材工业研究所 | Laminated wood |
| CN102259366A (en) * | 2011-08-05 | 2011-11-30 | 李源林 | Production technology of compound core-boards |
-
2011
- 2011-12-01 CN CN2011103918971A patent/CN102490218A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0374518A (en) * | 1989-08-11 | 1991-03-29 | Yanmar Diesel Engine Co Ltd | Air cooler for engine |
| CN2224709Y (en) * | 1994-11-19 | 1996-04-17 | 上海钢琴公司 | Composite paulownia |
| JP4209982B2 (en) * | 1999-01-14 | 2009-01-14 | 株式会社太平製作所 | Method for manufacturing plate material using lace single plate material |
| US20050139287A1 (en) * | 2003-12-24 | 2005-06-30 | Meinan Machinery Works, Inc. | Veneer lathe and method of cutting wood block by the veneer lathe |
| CN2923236Y (en) * | 2006-03-08 | 2007-07-18 | 冯士祥 | Hard wood plate material |
| CN201030599Y (en) * | 2007-02-12 | 2008-03-05 | 锦州市福山木业有限责任公司 | Same-texture split joint adhesive-bonded panel |
| CN201009310Y (en) * | 2007-03-14 | 2008-01-23 | 华商技研(天津)家具有限公司 | Fast growing forest tree consequent veneer |
| CN101069971A (en) * | 2007-06-07 | 2007-11-14 | 林文信 | Pure china-fir three-layer real-wood integrated material and making method |
| JP2009073148A (en) * | 2007-09-25 | 2009-04-09 | Panasonic Electric Works Co Ltd | Production method of wooden flooring |
| CN201098930Y (en) * | 2007-09-29 | 2008-08-13 | 祃平原 | Veneer composite board |
| CN201881443U (en) * | 2010-11-05 | 2011-06-29 | 中国林业科学研究院木材工业研究所 | Laminated wood |
| CN102259366A (en) * | 2011-08-05 | 2011-11-30 | 李源林 | Production technology of compound core-boards |
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Application publication date: 20120613 |