CN102218762A - Low-cost Keruing timber degreasing method - Google Patents
Low-cost Keruing timber degreasing method Download PDFInfo
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- CN102218762A CN102218762A CN2011101087846A CN201110108784A CN102218762A CN 102218762 A CN102218762 A CN 102218762A CN 2011101087846 A CN2011101087846 A CN 2011101087846A CN 201110108784 A CN201110108784 A CN 201110108784A CN 102218762 A CN102218762 A CN 102218762A
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- kapur
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- keruing
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Abstract
The invention provides a low-cost Keruing timber degreasing method, which comprises the steps as follows: Keruing timbers are arranged into a steaming vat; then fresh water is filled in the steaming vat and heated so that the internal temperature of the Keruing timbers can reach a target temperature; then heating is stopped and the surfaces of the Keruing timbers are cleaned after natural cooling; then the Keruing timbers are discharged out of the vat and are processed into blank materials and dried so that the grease in the blank materials can be volatilized and seeped; after the grease is seeped, the surfaces of the Keruing timbers are wiped by organic solvent to dissolve and remove the grease; then the Keruing timbers are piled until the surfaces of the Keruing timbers are dry to remove the surface grease grains and finally achieve the purpose of degreasing. The low-cost Keruing timber degreasing method is simple to operate, has low cost, can not pollute environment and has obvious degreasing effect. The degreased Keruing is hard to warp and crack, etc. Moreover, the paint adhesion of products is strong; the excellence and occupation coefficient of the Keruing timbers are greatly improved.
Description
Technical field
The present invention relates to a kind of degreasing method of timber, specifically is a kind of timber of kapur cheaply degreasing method.
Background technology
Kapur timber, formal name used at school, Da Hua kapur (Dipterocarpus spp.) is commonly called as Nan Yang oil son wood, is distributed in south east asia.This timber air-dry density 0.7 ~ 0.8g/cm3, heartwood ash bronzing a little less than the luster of wood, often has the resin smell to bronzing; Texture is straight usually; Structure is slightly thick, evenly, natural defect seldom, the volume recovery height; Advantages such as easy coloring is arranged, and corrosion resistant is rotten, and nail-holding ability is big, mechanical index is near teak, and rigidity is higher than teak 25%, is the precious commerical tree species in torrid areas, but the big footpath of production high-quality level industrial cut stock.But, kapur timber contains a large amount of resins, there is resin to overflow during high temperature, blocks the timber pipeline, make in its dry run the internal moisture evaporation inhomogeneous, rate of drying is slow, dry back is production warpage, cracking easily, and the product PASS is poor, and paint film peels off easily, have a strong impact on the apparent mass and the plate face paint effect on floor, influenced the market sale of product and user's use simultaneously.In traditional handicraft, manufacturer is in order to guarantee PASS and surface effect, and major part can only adopt NC paint (nitrate paint), thereby causes the manufacturing cost height, is difficult to allow the consumer accept; Little producer's branch then uses PU paint (polyester coating), but can not dry after using PU paint, the way that can only adopt nature to dry, thus cause production efficiency low, and of poor quality.
Summary of the invention
At above-mentioned existing in prior technology problem, the purpose of this invention is to provide a kind of simple to operate, use environmental protection, effect is obvious and lower-cost kapur degreasing method.
For achieving the above object, the technical solution adopted in the present invention is: a kind of timber of kapur cheaply degreasing method is characterized in may further comprise the steps:
(1), boiling degreasing: kapur timber is put into the boiling pond and injected clear water, make kapur timber internal temperature reach 50 ℃～95 ℃ and keep stopping heating after 8～15 hours by heating, naturally cooling to normal temperature can clean surface and go out the pond;
(2), drying is oozed fat: the kapur timber of boiling and cooling is processed into the specification blank through saw lumber, carries out drying and handle, the grease volatilization in the blank is oozed out.
Wherein, in order to make blank more to meet the demands and to reach higher utilization rate, above-mentionedly also comprise follow-up sorting process step: dry rear surface is had ooze the kapur blank that reveals grease and the kapur blank sorting of ne-leakage grease is kept apart, after wherein the surface has the blank of grease to be processed into openpore, handle by dry tack free once more, treat that the grease in the kapur openpore oozes out back organic solvent wipe surfaces, with grease dissolve degrease again piling stack and go out surperficial fat particles to the surface drying, finally reach the purpose of degreasing.
In above-mentioned steps (): above-mentioned mode of heating is the vapours mode of heating, during heating, earlier the water in the boiling pond is heated to 40 ℃～45 ℃ and be incubated 5～10 hours from normal temperature with per hour 2 ℃～5 ℃ programming rate, be warming up to 85 ℃～95 ℃ with per hour 2 ℃～8 ℃ again, be incubated 8～16 hours, make kapur timber internal temperature reach target temperature and can stop heating.Except the mode that adopts the vapours heating, can also use other mode of heating that can reach effect same heating.
In above-mentioned steps (two): should to control temperature be that 80 ℃～95 ℃, humidity are 70%～95% humid tropical condition to hothouse in the dry run, and the time of keeping dry is more than 20～32 hours.Consider dry and can cause further that blank is dry to be shunk during degreasing, so need reserve surpluses such as drying contraction, floor processing when being processed into blank.
In above-mentioned sorting process step: above-mentionedly dry handle that to be that jet-propelled hot air drying machine by 10m comes dry, adjusting temperature and be 50 ℃～90 ℃, feed speed is 6～20m/min; Separate with parting bead when above-mentioned kapur openpore piling is stacked, it separates the gap more than 10mm, and be 2～6 hours standing time.
In order to ensure the quality of kapur timber boiling, above-mentioned kapur timber is processed into flitch according to the size in boiling pond before boiling, and separates each flitch with parting bead when packing the boiling pond into.
The present invention is owing to adopt the purpose of injecting clear water and realize the timber degreasing with the method for vapours heating in the boiling pond of placing kapur timber, need not to adopt chemical solvent to come boiling, not only can reduce cost but also can not cause environmental pollution, handle and to make the further degreasing of kapur blank oozing fat through super-dry after the boiling, its degreasing and drying are carried out synchronously, reducing operation also reduces cost, it is simple to operate, and degreasing effect is remarkable, has guaranteed that effectively the kapur timber after the degreasing can adapt to the VU lacquer (coating material solidified from outward appearance) and the quick mode of production of PU lacquer mass; Again owing to have the blank of grease to do further dry the processing on the surface through sorting the blank behind the drying defatted, finally reaching all blanks does not have grease or contains oil quantity and do not exceed standard, the utilization rate of blank and the quality of assurance product have been improved, kapur after the degreasing is not prone to phenomenons such as warpage, cracking in process of production, and the product PASS is strong, paint film is incrust, effectively improve the apparent mass and the plate face paint effect of cost, improved the superiority and the utilization rate of kapur timber greatly.
The specific embodiment
A kind of timber of kapur cheaply degreasing method specifically may further comprise the steps:
(1), according to the size in boiling pond, log is processed into (2850～2000) * (100～500) * (108～140) mm flitch, pack into the then boiling pond boiling of 3000*3000*3000, the parting bead with 1200*60*60 between the flitch separates, and guarantees cooking quality;
Digesting technoloy and benchmark: after the kapur flitch is gone into the pond, inject clear water,, the water in the pond is heated to 45 ℃ from normal temperature, be incubated 6～8 hours by the programming rate of vapours with hours 2～3 ℃; Be warmed up to 85～90 ℃ again, 2～3 ℃/hour of programming rates are incubated 18～20 hours, make the flitch internal temperature reach 60～85 ℃; Stop heating, water temperature is reduced to normal temperature now, and the surface of flitch capable of washing goes out the pond.
(2), the kapur flitch of boiling, cooling is processed through saw lumber, saw is separated into required blank, to reserve surpluses such as drying, processing in the lumber conversion, its specification is (2850～2000) * 24* (108～147) mm, carrying out drying handles, should control temperature in the hot and humid stage of drying is that 80～95 ℃, humidity are 95%, and keeps the time more than 24 hours, makes grease volatilization in the kapur sheet material, oozes out.
The present invention is except above-mentioned steps, in order to make blank more to meet the demands and to reach higher utilization rate, also include follow-up sorting process step: the dry specification kapur blank of handling (comprising the dry plate that does not pass through above-mentioned PROCESS FOR TREATMENT), through artificial separation, the surface had to ooze reveal the grease blank and the sorting of no grease blank is kept apart, the material of surperficial no grease can drop into the normal process program; The surface has grease materials processing to become openpore, openpore promptly is meant machine-shaping but does not pass through the goods of covering with paint, lacquer, colour wash, etc., handle by the jet-propelled hot air drying machine of 10m again, adjusting temperature is 60～90 ℃, feed speed 8～15m/min, after its high-temperature process, grease will ooze out in the plain plate of kapur, use cloth waste to speckle with the plain plate of machine solvent wiping surface then, grease is dissolved degrease, the XX solvent of this embodiment can adopt industrial acetone or alcohol equal solvent, and plain then plate separates piling with wooden parting bead to be stacked 2～4 hours, and plain plate plate face reaches surface drying, remove surperficial fat particles, can normally use.If plain leaf fat fat is more, can just can reach requirement 2～3 times repeatedly.
The grease of kapur timber can be removed by above step, the surface that wherein sorts out in sorting process does not have the blank of grease, before japanning, spray from the teeth outwards or is stained with PU water paint wiping coating, coating weight 110～130g/ ㎡ with cloth waste; This PU water paint is selected the PU water paint of two components for use, and the PU water paint proportioning of this pair component is lacquer: Gu: water=1:0.2: 0.2.Behind the coating PU water paint, separate with parting bead, the parting bead clearance control is more than 10mm, to guarantee ventilation about the while; Behind the intact water paint of spraying or wiping, naturally ventilated dry 8～48 hours of product needed is coating UV priming paint etc. again, before the coating, and the PU water-based enamelled coating of light weight sand to polish and solidified.In addition if coat with lacquer as incrustation with UV, prevent to accumulate heat effects adhesive force because of the kapur wood product surface that UV lacquer photocuring drying causes, its surface temperature can not be above 50 ℃, or use twice coating UV lacquer to solve plate face heat history, ooze out because of heat makes the inner remaining grease of timber with protection.
Although the present invention describes with reference to specific embodiment, this description and not meaning that is construed as limiting the present invention.With reference to description of the invention, other of the disclosed embodiments change, and all can expect for those skilled in the art, and this variation should belong in the affiliated claim institute restricted portion.
Claims (10)
1. kapur timber degreasing method cheaply is characterized in that may further comprise the steps:
(1), boiling degreasing: kapur timber is put into the boiling pond and injected clear water, make kapur timber internal temperature reach 50 ℃～95 ℃ and kept 8～15 hours by heating, stop heating then, naturally cooling to normal temperature can clean surface and go out the pond;
(2), drying is oozed fat: the kapur timber of boiling and cooling is processed into the specification blank through saw lumber, carries out drying and handle, the grease volatilization in the blank is oozed out.
2. the timber of kapur cheaply degreasing method according to claim 1, it is characterized in that the above-mentioned follow-up sorting process step that also comprises: dry rear surface is had ooze the kapur blank that reveals grease and the kapur blank sorting of ne-leakage grease is kept apart, after wherein the surface has the blank of grease to be processed into openpore, handle by dry tack free once more, treat that the grease in the kapur openpore oozes out back organic solvent wipe surfaces, with grease dissolve degrease again piling stack and go out surperficial fat particles to the surface drying, finally reach the purpose of degreasing.
3. the timber of kapur cheaply degreasing method according to claim 1 is characterized in that in the above-mentioned steps ():
Above-mentioned mode of heating is the vapours mode of heating, during heating, earlier the water in the boiling pond is heated to 40 ℃～45 ℃ and be incubated 5～10 hours from normal temperature with per hour 2 ℃～5 ℃ programming rate, be warming up to 85 ℃～95 ℃ with per hour 2 ℃～8 ℃ again, be incubated 8～16 hours, make kapur timber internal temperature reach target temperature and can stop heating.
4. the timber of kapur cheaply degreasing method according to claim 1 is characterized in that in the above-mentioned steps (two):
Should to control temperature be that 80 ℃～95 ℃, humidity are 70%～95% humid tropical condition to hothouse in the dry run, and the time of keeping dry is more than 20～32 hours.
5. the timber of kapur cheaply degreasing method according to claim 2 is characterized in that in the above-mentioned sorting process step:
Above-mentionedly dry handle that to be that jet-propelled hot air drying machine by 10m comes dry, adjusting temperature and be 50 ℃～90 ℃, feed speed is 6～20m/min.
6. the timber of kapur cheaply degreasing method according to claim 2 is characterized in that in the above-mentioned sorting process step:
Separate with parting bead when above-mentioned kapur openpore piling is stacked, it separates the gap more than 10mm, and be 2～6 hours standing time.
7. the timber of kapur cheaply degreasing method according to claim 1 is characterized in that above-mentioned kapur timber is processed into flitch according to the size in boiling pond before boiling, separate each flitch with parting bead when packing the boiling pond into.
8. the timber of kapur cheaply degreasing method according to claim 2, the kapur blank that it is characterized in that the ne-leakage grease that sub-elects in the above-mentioned sorting process step needs spraying or wiping PU water paint in its surface before japanning, separate back natural draft drying 8～48 hours with parting bead afterwards.
9. the timber of kapur cheaply degreasing method according to claim 8 is characterized in that the PU water paint of above-mentioned PU water paint for two components.
10. the timber of kapur cheaply degreasing method according to claim 1, it is characterized in that by the kapur material after the above-mentioned processing after machine-shaping, the fraction product surface occurs oozing and reveals the grease phenomenon, with 50 ℃～90 ℃ high-temperature baking 1～10min of hot air drying machine, wipe surfaces with an organic solvent then, grease is dissolved degrease, get final product japanning after drying.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101087846A CN102218762A (en) | 2011-04-28 | 2011-04-28 | Low-cost Keruing timber degreasing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101087846A CN102218762A (en) | 2011-04-28 | 2011-04-28 | Low-cost Keruing timber degreasing method |
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| CN102218762A true CN102218762A (en) | 2011-10-19 |
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| CN2011101087846A Pending CN102218762A (en) | 2011-04-28 | 2011-04-28 | Low-cost Keruing timber degreasing method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104772807A (en) * | 2015-04-21 | 2015-07-15 | 广东省宜华木业股份有限公司 | Broad-leaved wood board gum-removing and drying integrated treatment method |
| CN108000655A (en) * | 2017-12-15 | 2018-05-08 | 中山市大涌镇生产力促进中心 | A kind of modified technique for improving wood paints adhesive force |
| CN108943236A (en) * | 2018-07-26 | 2018-12-07 | 湖州亨力木业有限公司 | The degreasing method of maple wood |
Citations (2)
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| CN101284389A (en) * | 2008-05-22 | 2008-10-15 | 浙江仕强竹业有限公司 | Method for producing recombination module wood from secondary processing wood |
| CN101633189A (en) * | 2009-08-25 | 2010-01-27 | 林丽雪 | Method for degreasing pinewoods |
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- 2011-04-28 CN CN2011101087846A patent/CN102218762A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101284389A (en) * | 2008-05-22 | 2008-10-15 | 浙江仕强竹业有限公司 | Method for producing recombination module wood from secondary processing wood |
| CN101633189A (en) * | 2009-08-25 | 2010-01-27 | 林丽雪 | Method for degreasing pinewoods |
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| 张志文等: "水煮处理对松木树脂移动及分布影响研究", 《森林工程》, vol. 27, no. 2, 31 March 2011 (2011-03-31), pages 38 - 40 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104772807A (en) * | 2015-04-21 | 2015-07-15 | 广东省宜华木业股份有限公司 | Broad-leaved wood board gum-removing and drying integrated treatment method |
| CN108000655A (en) * | 2017-12-15 | 2018-05-08 | 中山市大涌镇生产力促进中心 | A kind of modified technique for improving wood paints adhesive force |
| CN108943236A (en) * | 2018-07-26 | 2018-12-07 | 湖州亨力木业有限公司 | The degreasing method of maple wood |
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Application publication date: 20111019 |