CN103128822A - 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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- CN103128822A CN103128822A CN2011103773084A CN201110377308A CN103128822A CN 103128822 A CN103128822 A CN 103128822A CN 2011103773084 A CN2011103773084 A CN 2011103773084A CN 201110377308 A CN201110377308 A CN 201110377308A CN 103128822 A CN103128822 A CN 103128822A
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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 the production technology of the high wet look floor base material of a kind of 12mm.
Background technology
Increasing along with Chinese fiberboard demand, a large amount of factories that produce medium and high density fibre panel go into operation successively, the selling market of, industrial chemicals spurt in prices in short supply at wood material, product competition excitation, want to make the product of oneself to occupy a tiny space, just must strengthen quality mind, Branding consciousness, only have and produce high-quality product, adhere to striving for survival on the basis of quality, developing through quality and to stand on the invincible position in the market competition of fierceness.
Popular along with consolidated floor, the requirement especially variation of consumer to the consolidated floor outward appearance, high wet look consolidated floor was liked by the consumer deeply in recent years.Yet, due to the particularity of this kind sheet material following process, when pressing, the high-density layer thickness of base material and the aspects such as stability of peak value, averag density, plate surface evenness and fiber moisture are all had higher requirement.(Yang Jinbang etc., CN200810123274.4), averag density is less than 860kg/m for a kind of 12mm light floor base material that our company obtains research in 2008
3, this averag density is less than 860kg/m
3Base material when pressing, the plate face is prone to orange peel (be commonly called as and crumple) phenomenon; Secondly, guarantee enough sandwich layer density, otherwise it is scared rough to cause slotting; The decorative pattern phenomenon appears in density variation and the unstable meeting of moisture control in the process of veneer in plate in addition, i.e. Density inhomogeneity, and vertical deviation is larger.For overcoming the above problems, must improve and promote from equipment, technique and operative skill, our company has investigated different operating conditions under the process conditions that original floor base material is produced, finally obtain a kind of production technology that is fit 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 that the stable high wet look floor base material of enough thick surperficial high-density layer and higher superficial density peak value and sandwich layer density value is arranged is provided.
Technical scheme:The high wet look floor base material of a kind of 12mm production technology, in wood material, pine tree accounts for the ratio of 30 ~ 40% (wt), string is after physical chemistry is processed separation, mix adhesive and waterproofing agent, drying, selection by winnowing, fiber are carried and fixed are thickly mated formation again, and moulding and high temperature, high pressure compacting form.Pressing process is: the press temperature is adjusted into 180～183 ℃, and after the sheet material that paves entered press, in 38～42 seconds, pressure boosted to 198bar; Then begin slow step-down, 7 ~ 10 seconds used times when guaranteeing the pressure off-load to 175 bar, this act as the thickness that increases 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, begin timing from the 198bar step-down, to the time that begins to beat secondary high-pressure be 85～90 seconds; Pressure is got to 170bar from 48bar and is high pressure for the second time, and then slowly is down to 150bar, and this phases-time is 70-75 second; The back is to carry out step-down to process, and is depressurized to for the first time 50bar, is depressurized to for the second time 23bar, be depressurized to for the third time 16bar, after final pressure is down to 14bar, press opens, and installation shovel head is released press to unloader with the hair plates that suppresses, and unloading the goods from the airplane begins successively extremely follow-up cooling sawing of ejecting plate.。
After described sheet material entered press, press began to be closed into pressure and rises to 198bar for boosting for the first time, and the time is 42 seconds.
Describedly begin timing from the 198bar pressure release, to the time that begins to beat secondary high-pressure be 88 seconds.
Then described pressure is delayed and is down to 150bar for to get to 170bar from 48bar, and this phases-time is 73 seconds.
Beneficial effect:The present invention is by the variation of the Parameter Conditions such as temperature, pressure, especially not directly to be depressured to 48bar in boost in pressure after 198bar, but used time 7 ~ 10s first drops to 175bar with pressure, this process can increase the thickness of high-density layer, promote global density, the floor base material of producing through the technical program has good processing characteristics, and smooth not crude, the 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.
Description of drawings
Fig. 1 is laminar press hot pressing curve.
Fig. 2 is the profile density curve map.
The 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, and the high density peak value of upper and lower plates face is all at 1000kg/m
3Above, place, the bottom of a pan least density is also at 830 kg/m
3Above, averag density is at 880kg/m
3The left and right therefore the density of the bottom of a pan low density area accounts for more than 94% of averag density, has guaranteed that enough superficial density peak values have solved the crimping problem, to have enough sandwich layer density to solve notch rough, and bulk strength is corresponding raising also, reaches standard-required.
The specific embodiment
Embodiment 1:
Produce high wet look floor base material the proportioning of raw material is had high requirements, ensure the diameter of q.s in pine tree more than 5 centimeters, substantially in 30 ~ 40% ratio.Raw material forms the wood chip of sizing through cutting, pass through again every technological process of follow-up each workshop section, screening, boiling, execute join glue, drying, mat formation, the serial process such as precompressed, formation has the slab of certain appearance and size, fiber moisture and bond strength, general length is that 4950 ~ 5000 ± 5mm, width are 1300 ± 5mm, slab thickness is substantially between 85 ~ 110 millimeters, moisture control is between 8 ~ 10%, after supply line edging, Accelerated fractionation, then through installation, every slab is directly sent in press and suppressed.
Installation dress slab is completed by a double holding plate mechanism dress plate transporter, fills in a certain order plate under PLC controls.During installation dress plate, the control of every layer of position is controlled by encoder, and after installation installed slab, the installation loading cart entered hot press by the fluid motor-driven installation trolley.Installation trolley advance put in place after dolly begin to return, every layer of installation trolley has a ratchet mechanism, dolly return move back inversion after, slab is just in time lost in press.After the installation loading cart fell back on the position, insulated door and backboard device were closed, and the dress plate process of next car is carried out in installation.The adjustment of every layer of loading cart shovel head is also very important, and clamp, push pedal are not in place, the press supporting plate is hit in the shovel butt otherwise can cause, so must adjust in strict accordance with technological requirement.
After installation falls back on the position, after insulated door and backboard device are closed, the hot press closed pressurization that begins to rise, closed simultaneously in order to guarantee press 15 laminates, there is a simultaneous close mechanism to guarantee.Hot pressing is a very crucial important operation, and product quality and output are played decisive role.Hot pressing refers under the synergy of heat and pressure, makes moisture gasification, evaporation, density increase, adhesive solidification, waterproofing agent redistribution in slab.Each part generation series of physical chemical change in raw material forms various adhesions, the process that goods is reached and conform to quality requirements thereby make between fiber.Must set hot compression parameters (temperature, time, pressure, moisture content) in strict accordance with technological requirement during hot pressing.Oil temperature is at 180-183 ℃, 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, set positions is: 135/134/170/150, and in hot pressing, the control of hot pressing temperature, time, pressure, mat moisture content is very important.Solidify in order to guarantee that adhesive in slab is unlikely in advance, the closing speed that rises during the hot press pressing plate, press closing time is shortened in quickenings of should raising speed as far as possible, but must guarantee that the interior air exhausting of slab removes speed and is limited.As too fast in the rate of rise, in slab, the untimely discharge of air can form high pressure gas cognition and wash out structure of plate slab.Moisture content General Requirements for slab (fiber) is controlled at 8-10%, and for the control of moisture content, must strictly control with reference to technological requirement.
Through after the shaping of hot press, then by the sawing cutting edge, and last sanding process, reach the sheet material of satisfactory size and various mechanical properties.
Testing result such as following table:
Claims (4)
1. the high wet look floor base material of 12mm production technology, in wood material, pine tree accounts for the ratio of 30 ~ 40% (wt), string is after physical chemistry is processed separation, mix adhesive and waterproofing agent, then drying, selection by winnowing, fiber carry and fixed thickly mat formation, moulding and high temperature, high pressure compacting form, it is characterized in that: pressing process is: the press temperature is adjusted into 180～183 ℃, after the sheet material that paves enters press, in 38～42 seconds, boost to 198bar; Then begin slow step-down, 7 ~ 10 seconds used times when guaranteeing the pressure off-load to 175 bar; Then be depressurized to 48bar, then between 48bar and 50bar repeatedly voltage raising and reducing carry out the transmission of temperature, begin timing from the 198bar step-down, to the time that begins to beat secondary high-pressure be 85～90 seconds; Pressure is got to 170bar from 48bar and is high pressure for the second time, and then slowly is down to 150bar, and this phases-time is 70-75 second; The back is to carry out step-down to process, and is depressurized to for the first time 50bar, is depressurized to for the second time 23bar, be depressurized to for the third time 16bar, after final pressure is down to 14bar, press opens, and installation shovel head is released press to unloader with the hair plates that suppresses, and unloading the goods from the airplane begins successively extremely follow-up cooling sawing of ejecting plate.
2. the high wet look floor base material of 12mm according to claim 1 production technology, it is characterized in that: after sheet material enters press, pressure boosts to 198bar for boosting for the first time, and the time is 42 seconds.
3. the high wet look floor base material of 12mm according to claim 1 production technology is characterized in that: begin timing from the 198bar pressure release, to the time that begins to beat secondary high-pressure be 88 seconds.
4. the high wet look floor base material of 12mm according to claim 1 production technology, it is characterized in that: pressure is got to 170bar from 48bar, then slowly is down to 150bar, and this phases-time is 73 seconds.
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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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| CN103128822B CN103128822B (en) | 2015-01-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108582377A (en) * | 2018-03-29 | 2018-09-28 | 华南农业大学 | A kind of compressed wood of the wood compression-original position with the integrated method of autoclaving and its preparation |
| CN110156412A (en) * | 2019-06-05 | 2019-08-23 | 山东鲁泰建材科技集团有限公司 | A kind of perforation backboard and preparation method thereof |
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| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108582377A (en) * | 2018-03-29 | 2018-09-28 | 华南农业大学 | A kind of compressed wood of the wood compression-original position with the integrated method of autoclaving and its preparation |
| CN110156412A (en) * | 2019-06-05 | 2019-08-23 | 山东鲁泰建材科技集团有限公司 | A kind of perforation backboard and preparation method thereof |
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| CN103128822B (en) | 2015-01-28 |
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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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Free format text: CORRECT: ADDRESS; FROM: 212300 ZHENJIANG, JIANGSU PROVINCE TO: 525024 MAOMING, GUANGDONG PROVINCE |
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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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