CN103128822B - Production process for bright-surface floor base material with height of 12mm - Google Patents
Production process for bright-surface floor base material with height of 12mm Download PDFInfo
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- CN103128822B CN103128822B CN201110377308.4A CN201110377308A CN103128822B CN 103128822 B CN103128822 B CN 103128822B CN 201110377308 A CN201110377308 A CN 201110377308A CN 103128822 B CN103128822 B CN 103128822B
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Abstract
Disclosed is a production process for bright-surface floor base material with a height of 12mm. The proportion of pines in wood raw materials is 30 to 40 percent. After plant fibers undergo physicochemical treatment and are separated, a tackiness agent and a waterproof agent are mixed into the plant fibers, then the plant fibers undergo drying, air separation, fiber conveyance and thickness defined assembly, forming and pressing under high temperature and high pressure, and the base material is formed. The pressing process comprises the steps of adjusting temperature of a press to be 180 DEG C to 183 DEG C, enabling a mat-formation board to enter the press, in 38 seconds to 42 seconds, boosting pressure to be 198 bar, then starting releasing the pressure slowly, guaranteeing that the pressure can be loaded off to be 175 bar in 7 to 10 seconds, then releasing the pressure to be 48 bar, conducting temperature transition through repeatedly pressure rising and releasing between 48 bar and 50 bar, starting timekeeping from pressure relief at the pressure of 198 bar, suppressing second high pressure in 85 to 90 seconds, suppressing the pressure of 48 bar to the pressure of 170 bar, namely the second high pressure, then slowly releasing the pressure to be 150 bar, enabling the period of time to be 70 to 75 seconds, later, conducting pressure relief treatment, releasing the pressure to be 50 bar for the first time, releasing the pressure to be 23 bar for the second time, releasing the pressure to be 16 bar for the third time, and finally, when the pressure is released to be 14 bar, releasing the pressure of the press. A floor is produced.
Description
Technical field
The invention belongs to a kind of wood working process, particularly a kind of production technology of 12mm height wet look floor base material.
Background technology
Along with the increasing of Chinese fiberboard demand, the factory of a large amount of production medium and high density fibre panel goes into operation successively, the selling market of, industrial chemicals spurt in prices in short supply at wood material, product competition excitation, want that the product making oneself occupies a tiny space, just must strengthen quality mind, Branding consciousness, only have the product of production high-quality, adhere to striving for survival on the basis of quality, developing through quality and could establish oneself in an unassailable position in the market competition of fierceness.
Popular along with consolidated floor, consumer is diversified especially to the requirement of consolidated floor outward appearance, and high wet look consolidated floor was liked by consumer deeply in recent years.But, due to the particularity of this kind of sheet material following process, all there is higher requirement when pressing in stability of the high-density layer thickness of base material and peak value, averag density, plate surface evenness and fiber moisture etc.A kind of 12mm light floor base material (Yang Jinbang etc., CN200810123274.4) obtained was studied in 2008 by our company, and averag density is less than 860kg/m
3, this averag density is less than 860kg/m
3base material when pressing, easily there is orange peel (be commonly called as and crumple) phenomenon in plate face; Secondly, ensure enough core concentration, otherwise fluting can be caused scared rough; In plate can there is decorative pattern phenomenon in density variation and moisture control instability in the process of veneer in addition, i.e. Density inhomogeneity, vertical deviation is larger.For overcoming the above problems, must carry out improving and promoting from equipment, technique and operative skill, under the process conditions that our company produces at original floor base material, having investigated different operating conditions, finally obtain a kind of production technology being applicable to high wet look floor base material.
Summary of the invention
technical problem:the present invention is directed to above-mentioned technical problem, a kind of production technology having the high wet look floor base material of enough thick surperficial high-density layer and higher superficial density peak value and core concentration value stabilization is provided.
technical scheme:a kind of 12mm height wet look floor base material production technology, in wood material, pine tree accounts for the ratio of 30 ~ 40% (wt), string is after physical chemistry process is separated, mix adhesive and waterproofing agent, drying, selection by winnowing, fiber conveying and fixed thickly to mat formation again, shaping and high temperature, high pressure compacting form.Pressing process is: press temperature is adjusted to 180 ~ 183 DEG C, and after the sheet material paved enters press, in 38 ~ 42 seconds, pressure boosts to 198bar; Then start slow step-down, ensure that pressure off-load was to 7 ~ 10 seconds used times during 175 bar, this act as the thickness increasing high-density layer, promotes global density; Then be depressurized to 48bar, then between 48bar and 50bar repeatedly voltage raising and reducing carry out the transmission of temperature, timing from 198bar step-down, be 85 ~ 90 seconds to starting to beat time of secondary high-pressure; Pressure gets to 170bar for second time high pressure from 48bar, and then slow is down to 150bar, and this phases-time is 70-75 second; Be carry out step-down process below, first time is depressurized to 50bar, and second time is depressurized to 23bar, third time is depressurized to 16bar, after final pressure is down to 14bar, press opens, and the hair plates suppressed is released press to unloader by installation shovel head, unloads the goods from the airplane and starts successively ejecting plate extremely follow-up cooling sawing.。
After described sheet material enters press, press starts to be closed into pressure and rises to 198bar for first time boosting, and the time is 42 seconds.
Described timing from 198bar pressure release is 88 seconds to starting to beat time of secondary high-pressure.
Described pressure is for get to 170bar from 48bar, and then delay and be down to 150bar, this phases-time is 73 seconds.
beneficial effect:the present invention is by the change of the Parameter Conditions such as temperature, pressure, especially not directly be depressured to 48bar after boost in pressure to 198bar, but pressure is first dropped to 175bar by used time 7 ~ 10s, this process can increase the thickness of high-density layer, promote global density, the floor base material produced through the technical program has good processing characteristics, and smooth not crude, plate face of slotting is smooth does not crumple and without surface quality problems such as decorative patterns, product percent of pass is high, and constant product quality is really up to the mark.Indices is all higher than the required value of European standard and national standard.
Accompanying drawing explanation
Fig. 1 is laminar press hot pressing curve.
Fig. 2 is profile density curve map.
Profile density curve map: from then on figure can find out that whole " U " type figure the bottom of a pan transition is mild especially, the most high density peak value in upper and lower plates face is all at 1000kg/m
3above, the bottom of a pan place least density is also at 830 kg/m
3above, averag density is at 880kg/m
3left and right, therefore the density of the bottom of a pan low density area accounts for more than 94% of averag density, ensure that enough superficial density peak values solve curling problems, to have enough core concentration to solve notch rough, bulk strength is corresponding raising also, reaches standard-required.
Detailed description of the invention
Embodiment 1:
Produce the proportioning of high wet look floor base material to raw material to have high requirements, diameter pine tree more than 5 centimeters of q.s be ensured, substantially 30 ~ 40% ratio.Raw material forms the wood chip of sizing through cutting, again through every technological process of follow-up each workshop section, screening, boiling, execute join glue, drying, mat formation, the serial procedures such as precompressed, form the slab with certain appearance and size, fiber moisture and bond strength, general length is 4950 ~ 5000 ± 5mm, width is 1300 ± 5mm, slab thickness is substantially between 85 ~ 110 millimeters, moisture control is between 8 ~ 10%, after supply line edging, Accelerated fractionation, more directly send in press through installation suppress often opening slab.
Installation dress slab has been come by a double holding trigger structure dress plate transporter, under PLC controls, fill plate in a certain order.During installation dress plate, the control of every layer of position is controlled by encoder, and after installation installs slab, installation loading cart enters hot press by fluid motor-driven installation trolley.Installation trolley advance put in place after dolly start to return, installation trolley every layer has a ratchet mechanism, and dolly is after returning and moving back inversion, and slab is just in time lost in press.After installation loading cart falls back on position, insulated door and backboard device are closed, and the dress plate process of next car is carried out in installation.The adjustment of loading cart every layer shovel head is also extremely important, otherwise can cause that clamp, push pedal are not in place, shovel butt hits press supporting plate, so must adjust in strict accordance with technological requirement.
After installation falls back on position, after insulated door and backboard device are closed, hot press starts closed pressurization of rising, and in order to ensure that press 15 laminate closes simultaneously, has a simultaneous close mechanism to ensure.Hot pressing is a very crucial important operation, plays decisive role to product quality and output.Hot pressing refers under the synergy of heat and pressure, makes the moisture vaporization in slab, evaporation, density increase, adhesive solidification, waterproofing agent redistribution.Each part generation series of physical chemical change in raw material, thus make between fiber, to form various adhesion, goods are reached and the process conformed to quality requirements.Hot compression parameters (temperature, time, pressure, moisture content) must be set in strict accordance with technological requirement during hot pressing.Oil temperature is at 180-183 DEG C, hot pressing pressure is respectively: 175/188/198/50/48/170/150/50/23/16/14, time is set as: 42/88/73/4/4/0/0, used time 38-42 second when wherein press rises to P1 pressure, position is set as: 135/134/170/150, and in hot pressing, the control of hot pressing temperature, time, pressure, mat moisture content is very important.In order to ensure that the adhesive in slab is unlikely premature cure, the closing speed risen during hot press pressing plate, quickening of should raising speed as far as possible, shortens press closing time, but must ensure that in slab, air eliminating speed is limited.As the rate of rise is too fast, in slab air not in time discharge can be formed high pressure gas know from experience wash out structure of plate slab.Moisture content General Requirements for slab (fiber) controls at 8-10%, and for the control of moisture content, must strictly control with reference to technological requirement.
After the shaping of hot press, then by sawing cutting edge, and last sanding process, reach the sheet material of satisfactory size and various mechanical property.
Testing result is as following table:
Claims (4)
1. a 12mm height wet look floor base material production technology, in wood material, pine tree accounts for the ratio of 30 ~ 40% (wt), string is after physical chemistry process is separated, mix adhesive and waterproofing agent, drying, selection by winnowing, fiber conveying and fixed thickly to mat formation again, shaping and high temperature, high pressure compacting form, it is characterized in that: the moisture control of slab is at 8-10%, pressing process is: press temperature is adjusted to 180 ~ 183 DEG C, after the sheet material paved enters press, in 38 ~ 42 seconds, boost to 198bar; Then start slow step-down, ensure that pressure off-load was to 7 ~ 10 seconds used times during 175 bar; Then be depressurized to 48bar, then between 48bar and 50bar repeatedly voltage raising and reducing carry out the transmission of temperature, timing from 198bar step-down, be 85 ~ 90 seconds to starting to beat time of secondary high-pressure; Pressure gets to 170bar for second time high pressure from 48bar, and then slow is down to 150bar, and this phases-time is 70-75 second; Be carry out step-down process below, first time is depressurized to 50bar, and second time is depressurized to 23bar, third time is depressurized to 16bar, after final pressure is down to 14bar, press opens, and the hair plates suppressed is released press to unloader by installation shovel head, unloads the goods from the airplane and starts successively ejecting plate extremely follow-up cooling sawing.
2. 12mm height wet look floor base material production technology according to claim 1, is characterized in that: after sheet material enters press, pressure boosts to 198bar for first time boosting, and the time is 42 seconds.
3. 12mm height wet look floor base material production technology according to claim 1, is characterized in that: timing from 198bar pressure release, is 88 seconds to starting to beat time of secondary high-pressure.
4. 12mm height wet look floor base material production technology according to claim 1, is characterized in that: pressure gets to 170bar from 48bar, and then delay and be down to 150bar, this phases-time is 73 seconds.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110377308.4A CN103128822B (en) | 2011-11-24 | 2011-11-24 | Production process for bright-surface floor base material with height of 12mm |
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| CN201110377308.4A CN103128822B (en) | 2011-11-24 | 2011-11-24 | Production process for bright-surface floor base material with height of 12mm |
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| CN103128822A CN103128822A (en) | 2013-06-05 |
| CN103128822B true CN103128822B (en) | 2015-01-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108582377B (en) * | 2018-03-29 | 2021-01-19 | 华南农业大学 | Method for integrating wood compression and in-situ hot treatment under pressure and compressed wood prepared by method |
| CN110156412B (en) * | 2019-06-05 | 2020-06-12 | 山东鲁泰建材科技集团有限公司 | Perforated back plate and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1133769A (en) * | 1995-04-19 | 1996-10-23 | 王宝库 | Method for mfg. large shaving board or plywood coating face |
| JPH1058408A (en) * | 1996-08-22 | 1998-03-03 | Hisaka Works Ltd | Steam type high temperature press apparatus |
| CN101298159A (en) * | 2008-06-17 | 2008-11-05 | 大亚科技股份有限公司 | Routing plate processing technique |
| CN101301768A (en) * | 2008-07-11 | 2008-11-12 | 大亚科技股份有限公司 | Technique for producing 12mm light floor base material |
| JP2010036527A (en) * | 2008-08-07 | 2010-02-18 | Olympus Corp | Manufacturing process of compressed wood product, and compressed wood product |
| JP2011110731A (en) * | 2009-11-25 | 2011-06-09 | Panasonic Electric Works Co Ltd | Method of manufacturing woody plate-like building material |
-
2011
- 2011-11-24 CN CN201110377308.4A patent/CN103128822B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1133769A (en) * | 1995-04-19 | 1996-10-23 | 王宝库 | Method for mfg. large shaving board or plywood coating face |
| JPH1058408A (en) * | 1996-08-22 | 1998-03-03 | Hisaka Works Ltd | Steam type high temperature press apparatus |
| CN101298159A (en) * | 2008-06-17 | 2008-11-05 | 大亚科技股份有限公司 | Routing plate processing technique |
| CN101301768A (en) * | 2008-07-11 | 2008-11-12 | 大亚科技股份有限公司 | Technique for producing 12mm light floor base material |
| JP2010036527A (en) * | 2008-08-07 | 2010-02-18 | Olympus Corp | Manufacturing process of compressed wood product, and compressed wood product |
| JP2011110731A (en) * | 2009-11-25 | 2011-06-09 | Panasonic Electric Works Co Ltd | Method of manufacturing woody plate-like building material |
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Owner name: DARE WOOD (MAOMING) CO., LTD. Free format text: FORMER OWNER: DAYA SCI + TECH. CO., LTD. Effective date: 20141114 Owner name: DARE PANEL GROUP CO., LTD. Effective date: 20141114 |
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Effective date of registration: 20141114 Address after: 525024 private industrial park in Guangdong province Maoming City Maonan District Applicant after: Dare wood (Maoming) Co. Ltd. Applicant after: Dare Wood Based Panel Group Co., Ltd. Address before: 212300 No. 95 Jinling West Road, Danyang Economic Development Zone, Zhenjiang, Jiangsu Applicant before: Daya Sci & Tech. Co., Ltd. |
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