CN102794798B - Impregnation process for improving pressing performance of recombined materials - Google Patents
Impregnation process for improving pressing performance of recombined materials Download PDFInfo
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- CN102794798B CN102794798B CN201210275078.5A CN201210275078A CN102794798B CN 102794798 B CN102794798 B CN 102794798B CN 201210275078 A CN201210275078 A CN 201210275078A CN 102794798 B CN102794798 B CN 102794798B
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Abstract
The invention relates to an impregnation process for improving the pressing performance of recombined materials, and belongs to the technical field of artificial plate manufacturing. The recombined materials are artificial plates which are formed by impregnating, pressing and cementing prefabricated small-strip plant materials. The impregnation process adopts a technique of mixing talcum powder of certain proportion in a glue solution, so that the surfaces of the recombined materials are uniformly adhered with a layer of talcum powder which is used as lubricating agent. The impregnation process further adopts a secondary impregnation technique, so that the concentration of the glue solution and the proportion of the talcum powder are controlled easier. Through the application of the impregnation process, the liquidity of the recombined materials inside a pressing and forming mould can be improved, thereby remarkably reducing gaps inside the recombined materials. While the product quality is improved, the pressure requirements for pressing are reduced, the material utilization rate is improved, and the internal stress of the recombined materials is reduced, so that the recombined materials are not easy to deform; and simultaneously, the loss and power consumption of a press for pressing the recombined materials are remarkably reduced.
Description
Technical field
The present invention relates to a kind of gum dipping process improving recombinant material suppression performance, belong to artificial board manufacturing technology field.
Background technology
Recombinant material is by the plant material being prefabricated into fine strip shape, through impregnation, compacting, cementing artificial board.China has generally applied recombinant material technology at present and has manufactured artificial board.Particularly manufacture the factory of recombinant material with bamboo as raw material to be with in the south of the River one and to spread all over the place.The recombinant material produced can substitute timber to a great extent, has good environmental benefit and economic benefit.But because a large amount of fine strip shape raw material inevitably intermesh when suppressing, cause recombinant material inside to there is a large amount of space, to requiring after excision forming that the smooth later process of guarantee smooth in appearance brings very large puzzlement.In order to reduce the space of recombinant material inside, current way strengthens the pressure of press.Consequently: dry bamboo wood density is generally at 0.6g/cm
2left and right, and the density of final produced qualified products is often greater than 1g/cm
2.Although the pressure strengthening press significantly reduces the space of recombinant material inside, but raw material availability declines greatly, power consumption enlarges markedly, and therefore recombinant material internal stress raises easily is out of shape, and accelerates the compacting press of recombinant material and the loss of mould significantly simultaneously.
Summary of the invention
The object of the invention is to: propose a kind of gum dipping process improving recombinant material suppression performance and solve above-mentioned technical barrier: be used in the surface uniform of recombinant material raw material after the talcous method of mixing certain proportion makes impregnation in glue and adhere to one deck talcum powder, talcous lubricity is utilized to improve the mobility of recombinant material in press-moulding die, impelling recombinant material raw material to slide from trend gap when suppressing, making most space all be filled or reduce.Reach raising raw material availability, reduce recombinant material internal stress and make it not yielding, reduce the compacting press of recombinant material and the loss of mould significantly simultaneously, reduce the object of power consumption.
The present invention realizes by the following technical solutions:
A kind of gum dipping process improving recombinant material suppression performance comprises: impregnation and second time impregnation 2 steps for the first time.Described first time impregnation and the formula of second time impregnation and key points for operation as follows:
(1) production technology that in first time impregnation pond, the composition of glue used, concentration range, pH value and the length of impregnation time are original with recombinant material production firm is identical.
(2) second time impregnation is that secondary dipping pond is separately established in the position adjacent in soaking pond, agitating device is provided with in pond, inject in described secondary dipping pond with after first time impregnation identical glue used, add the superfine talcum powder by glue Weight computation about 5% in pond and stir into uniform suspendible glue continuously.Raw material complete for first time impregnation is drained a little and namely immerses secondary dipping pond, and glue is fully flowed in described recombinant material raw material, adhere to described superfine talcum powder in the hope of described recombinant material raw material surface uniform.A kind of straightforward procedure of described suspendible glue fully flowing in described recombinant material raw material is made to be: described recombinant material raw material is just lifted out glue liquid level after submergence in described suspendible glue, and then submergence to be risen again, repeatedly namely complete second time impregnation for 5 times.
Described secondary dipping pond does not need often to adjust gelatin concentration, if when before every day, impregnation started and talcum powder fully precipitates, by recombinant material production firm original production technology adjustment gelatin concentration.Described secondary dipping pond continuously will be stirred when impregnation and often be measured glue density, when the content that glue density shows described recombinant material is less than or equal to 3%, should adds superfine talcum powder in time and stir.Described secondary dipping pond is also noted that the change of pH value when impregnation, its control range should be identical with described first time impregnation.The granularity of described superfine talcum powder should at 1250 orders or thinner.
A large amount of foam can be produced because of stirring in described secondary dipping pond, thus affect operation.Therefore described secondary dipping pool side is provided with high-pressure sprayer, and described high-pressure sprayer can spray powerful water smoke, for eliminating foam.
The present invention is perfect further: in order to make glue and talcum powder evenly adhere in the whole length of described recombinant material raw material, after described second time immersing glue process completes, and it directly should not left standstill and drain; And should after described recombinant material raw material tentatively drains, then it is turned around up and down, leave standstill, drain further.
Beneficial effect: owing to adopting technique scheme, the present invention utilizes talcous lubricity, improves the mobility of recombinant material in press-moulding die, improves product quality, raw material availability and mechanical life, there is obvious energy saving, there is good operability simultaneously.Production and the application of recombinant material can be promoted.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is impregnation pond and the schematic diagram draining groove in the embodiment of the present invention.In figure:
1---soaking pond
2---secondary dipping pond
3---drain groove
4---mixer
Detailed description of the invention
1. start the preparation before impregnation: injecting in soaking pond and secondary dipping pond can enough glue of abundant submergence recombinant material raw material, measure its concentration (generally measuring with densimetry), pH value must meet original technological standards; Start secondary dipping pond mixer, add and treat that it stirs by the superfine talcum powder (1250 orders or thinner) of glue Weight computation about 5% in pond; The glue stirred is held and the glue density measured immediately now, the density range recorded in laboratory before should meeting in glass container.Secondary dipping pond mixer can not stop in whole immersing glue process, otherwise superfine talcum powder can precipitate very soon.
2. first time impregnation: with driving a vehicle, (crane) hangs in soaking pond recombinant material raw material, abundant submergence timing.
3. drain after first time impregnation: the impregnation time arrives, with driving, recombinant material raw material is hung on the liquid level of soaking pond, only have in material raw material to be reorganized during a small amount of glue sound of rain pattering and recombinant material raw material is hung on the liquid level of secondary dipping pond.
4. second time impregnation: with driving, recombinant material raw material is hung in secondary dipping pond, namely hang on liquid level after abundant submergence, and then submergence is sling again, 5 times repeatedly.
5. draining after second time impregnation: with driving a vehicle, recombinant material raw material is hung on the liquid level of secondary dipping pond, when only having a small amount of glue sound of rain pattering in material raw material to be reorganized, recombinant material raw material being hung and draining on groove.
6. turn around to leave standstill and drain: with driving a vehicle or being aided with other machinery, recombinant material raw material is turned around to place up and down, draining standing on groove draining.Drain the glue flowed out in groove and should flow into secondary dipping pond.
7. the adjustment of gelatin concentration in immersing glue process: along with the increase of impregnation number of times, in soaking pond, not only glue total amount is reducing, and due to large quantity of moisture infiltration recombinant material raw material inside, so the concentration of glue is also in rising, so will supplement lighter glue and water in soaking pond.Secondary dipping pond because what immerse is not dry recombinant material raw material so gelatin concentration does not have large change in the longer time, and is also increasing gradually along with the inflow glue total amount draining glue in groove.Unnecessary part should be extracted out in time, and precipitation falls talcous glue can add to soaking pond; The talcum powder precipitated can add to secondary dipping pond.
8. the adjustment of extra fine talc powder content in immersing glue process: along with the increase of impregnation number of times, in secondary dipping pond, extra fine talc powder content reduces gradually.Therefore to often measure glue density in whole immersing glue process, often add superfine talcum powder.The content of superfine talcum powder in glue is remained in the scope of 3% to 5%.
9. the adjustment of glue pH value in immersing glue process: because recombinant material raw material has certain acidity, recombinant material feedstock acidity particularly through charing process is larger, so for using the glue easily causing gelatin phenomenon, such as some adds the modified soluble phenol glue of urea, melamine etc. when synthesizing, and constantly tests pH value when impregnation.When find pH value have obviously decline time, such as, when pH value drops to 10 from 11, should add in time sodium hydroxide solution adjustment pH value.
10. eliminate foam operation in immersing glue process: understand producing foam because of stirring, thus foam is more poly-manyly affects operation in secondary dipping the pond in.Therefore when foam is too many, aim at foam with high-pressure sprayer, spray powerful water smoke, eliminate foam.
More than illustrate and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand, and the present invention is by the restriction of above-mentioned example, and the description in above-mentioned example and description, just illustrates principle of the present invention.Without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (4)
1. improve a gum dipping process for recombinant material suppression performance, it is characterized in that: comprise impregnation and second time impregnation 2 steps for the first time; Described first time impregnation and the formula of second time impregnation and key points for operation as follows:
(1) in soaking pond, first time impregnation is carried out;
(2) second time impregnation separately establishes secondary dipping pond in the position that described soaking pond is adjacent, is provided with agitating device in pond; Except glue identical with soaking pond except filling in described secondary dipping pond, also add the superfine talcum powder by glue Weight computation 3% to 5% in pond, and form uniform suspendible glue through stirring continuously; Recombinant material raw material complete for first time impregnation is drained a little and namely immerses described secondary dipping pond, and described suspendible glue is fully flowed in described recombinant material raw material, adhere to described superfine talcum powder in the hope of described recombinant material raw material surface uniform; Described secondary dipping pond infrequently adjusts gelatin concentration, only when before per tour impregnation starts and described superfine talcum powder fully precipitates, adjustment gelatin concentration; Described secondary dipping pond continuously will be stirred when impregnation and often be measured glue density to measure the content of described superfine talcum powder; When the content that glue density shows described superfine talcum powder is less than or equal to 3%, should described superfine talcum powder be added in time and stir; Described secondary dipping pond is also noted that the change of pH value when impregnation, its control range should be identical with described first time impregnation.
2. a kind of gum dipping process improving recombinant material suppression performance according to claim 1, it is characterized in that: described secondary dipping pool side is provided with high-pressure sprayer, described high-pressure sprayer can spray powerful water smoke, the foam produced for eliminating described secondary dipping pond internal cause to stir.
3. a kind of gum dipping process improving recombinant material suppression performance according to claim 1, it is characterized in that: after described second time immersing glue process completes, described recombinant material raw material is after tentatively draining, should turn around to leave standstill and drain further, be beneficial to glue and talcum powder evenly adheres in the whole length of described recombinant material raw material.
4. a kind of gum dipping process improving recombinant material suppression performance according to claim 1; It is characterized in that: the granularity of described superfine talcum powder should at 1250 orders or thinner.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210275078.5A CN102794798B (en) | 2012-07-30 | 2012-07-30 | Impregnation process for improving pressing performance of recombined materials |
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| CN201210275078.5A CN102794798B (en) | 2012-07-30 | 2012-07-30 | Impregnation process for improving pressing performance of recombined materials |
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| CN102794798A CN102794798A (en) | 2012-11-28 |
| CN102794798B true CN102794798B (en) | 2015-06-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105538431A (en) * | 2015-12-15 | 2016-05-04 | 中南林业科技大学 | Preparing method for undersized-log reconstructing outdoor furniture wood |
| CN109773925A (en) * | 2019-03-07 | 2019-05-21 | 黄河三角洲京博化工研究院有限公司 | A kind of preparation method of Scrimber |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3001872A1 (en) * | 1979-02-03 | 1981-07-23 | Friz, Helmut A., Dipl.-Ing., 7000 Stuttgart | Woodworking membrane veneer form press - has sliding layers between tiered sections of veneer for coating profiled workpieces |
| CN101357470A (en) * | 2008-06-03 | 2009-02-04 | 中国林业科学研究院木材工业研究所 | Recombination wood and manufacturing method thereof |
-
2012
- 2012-07-30 CN CN201210275078.5A patent/CN102794798B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3001872A1 (en) * | 1979-02-03 | 1981-07-23 | Friz, Helmut A., Dipl.-Ing., 7000 Stuttgart | Woodworking membrane veneer form press - has sliding layers between tiered sections of veneer for coating profiled workpieces |
| CN101357470A (en) * | 2008-06-03 | 2009-02-04 | 中国林业科学研究院木材工业研究所 | Recombination wood and manufacturing method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 浸胶工艺对绿竹重组竹材性能的影响;程亮等;《木材工业》;20090531;第23卷(第3期);第16-19页 * |
| 滑石粉的改性及应用;谢海安等;《国外建材科技》;20011231;第22卷(第3期);第31-34页 * |
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Effective date of registration: 20190829 Address after: 233000 Yuhui District, Bengbu City, Anhui Province, No. 1750 Shengli West Road, No. 316 Pioneering Building, Huineng Small and Micro Enterprise Pioneering Center Patentee after: BENGBU DINGRONG TECHNOLOGY INFORMATION CONSULTING Co.,Ltd. Address before: 313300 Shipu Town, Anji County, Zhejiang Province, Shengli West Road Times New Town 4-1-201 Patentee before: Wang Yiliang |
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Effective date of registration: 20221122 Address after: 276000 northeast of the intersection of Yanbin road and Xuyou Road, Feixian Economic Development Zone, Linyi City, Shandong Province Patentee after: Huili Equipment Manufacturing Co.,Ltd. Address before: 233000, No. 316, Chuangye building, Huineng small and micro enterprise entrepreneurship center, 1750 Shengli West Road, Yuhui District, Bengbu City, Anhui Province Patentee before: BENGBU DINGRONG TECHNOLOGY INFORMATION CONSULTING Co.,Ltd. |
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Effective date of registration: 20230529 Address after: No. 403, Building 11, Wenhua Garden, Wenhua Road, Longjiang Town, Shunde District, Foshan City, Guangdong Province, 528000 Patentee after: Li Ziping Address before: 276000 northeast of the intersection of Yanbin road and Xuyou Road, Feixian Economic Development Zone, Linyi City, Shandong Province Patentee before: Huili Equipment Manufacturing Co.,Ltd. |