CN102909210A - Process based on hot extrusion cold press technology for recycling waste composite aluminum foil material - Google Patents
Process based on hot extrusion cold press technology for recycling waste composite aluminum foil material Download PDFInfo
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- CN102909210A CN102909210A CN2011102244115A CN201110224411A CN102909210A CN 102909210 A CN102909210 A CN 102909210A CN 2011102244115 A CN2011102244115 A CN 2011102244115A CN 201110224411 A CN201110224411 A CN 201110224411A CN 102909210 A CN102909210 A CN 102909210A
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Abstract
The invention discloses a process based on the hot extrusion cold press technology for recycling a waste composite aluminum foil material. The process is realized by the following steps: recycling for smashing, namely carrying out crushing processing on the recycled waste composite aluminum foil material; hot extruding, namely fusing paper, aluminum foil and plastic of the waste raw material into integration; and cold pressing, namely, extruding the integrated waste after hot extrusion in a mould for molding so that plastic components are coated on the surface of the paper and the aluminum foil, keeping pressure and cooling to obtain a product. According to the process, the hot extrusion and the cold press technology are combined for one-time molding to obtain the composite aluminum foil material product, recycling of waste resources is realized, the density and the strength of the product are relatively high, and the product has the characteristics of moldy resistance, moth resistance, water resistance, static electricity resistance and the like.
Description
Technical field
The present invention relates to a kind of recovery technique of compound aluminium foil material, particularly a kind of technique that reclaims waste and old compound aluminium foil material based on the hot extrude technology of colding pressing.
Background technology
Aluminum foil material is a kind of packaging material commonly used, is widely used in the packing of the liquid beverages such as milk, fruit juice.This aluminum foil material is a kind of composite, and structure is a kind of lamination layer structure, and bottom is paper, and the intermediate layer is aluminium foil, upper strata coating plastic adventitia.In order to guarantee packaging intensity, the improvement to above-mentioned composite is also arranged, namely plastic foil is all contained on aluminium foil two sides in intermediate layer.
Milk and the juice drinks of people's current consumption are growing, 2010, the whole nation has produced 45,000,000,000 of milk packs, most of discarded packing is used as garbage disposal, because metallic aluminium and plastics itself all are to be difficult for decomposing material, simple processing with trash processing way will cause environmental pollution, and cause aluminium resource waste.
In order to solve the waste of this resource, prior art has been carried out the classification recovery to the metallic aluminium in the old and useless aluminium foil material and plastics.Wherein the removal process of aluminium is for to pulverize old and useless aluminium foil (such as the Tetrapack milk package box), the material after pulverizing passed into the reactor under the condition of anoxic, and in pyroreaction more than 400 ℃, gasification plastics and paper can reclaim raffinal; The removal process of plastics is the amphotericity according to aluminium, adopts acid solution or dipping by lye to remove aluminium, obtains plastics, again plastics is carried out post processing and reclaims.This classification cost recovery is higher, is unfavorable for large-scale production.
Aluminium plastic co-extruding is a kind of common method for preparing plastic product, has certain disadvantages but common aluminium plastic co-extruding technique is used for the recovery of old and useless aluminium foil, and the product density of extruding is lower, and intensity is relatively poor.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of technique that reclaims waste and old compound aluminium foil material based on the hot extrude technology of colding pressing, adopt hot extrude, cold pressing, and one-shot forming, directly make articles for daily use, product has mildew-resistant, mothproof, waterproof, the characteristics such as antistatic.
The present invention realizes by following technical scheme:
A kind of technique that reclaims waste and old compound aluminium foil material based on the hot extrude technology of colding pressing is to realize by following step:
(1) reclaims pulverizing, the waste and old compound aluminium foil material that reclaims is carried out break process;
(2) hot extrude combines together the paper in the waste and old raw material, aluminium foil and plastics under hot conditions;
(a 3) cold moudling according to product demand, with the one waste material extrusion forming in mould behind the hot extrude, makes plastic components be wrapped in the surface of paper and aluminium foil, and pressurize is cooled off, and gets product.
After carrying out break process in the described step (1), described waste and old compound aluminium foil material is that particle diameter is less than 5cm.
Extrusion temperature is 250～270 ℃ in the described step (2), and finding time is 3～5min.
The pressure of extrusion forming is every square centimeter of material pressurization 25～28MPa in the described step (3).
Dwell time in the described step (3) is 3～5min.
Can produce such as products such as student desk and chair, stool, family's classification garbage can, outdoor dustbin, lids by above-mentioned technique, this product has mildew-resistant, mothproof, waterproof, the characteristics such as antistatic.
Beneficial effect of the present invention is: versatility of the present invention is wider, and kind that can converted products is more, and product strength is higher, rationally utilizes regenerated resources, be with useless Dai Mu, with useless generation mould, with useless model for steel.The common density of existing crowded material is 1.05, and pressed density of the present invention is more than 1.15.
The specific embodiment
Embodiment 1
Make desk
(1) reclaims pulverizing, the waste and old compound aluminium foil material that reclaims is carried out break process, be broken for particle diameter less than 5cm;
(2) hot extrude, under 250 ℃ of conditions that waste and old raw material is mixing by extruder, the paper in the waste and old raw material, aluminium foil and plastics are combined together, extrude behind 3～5min according to the product size requirement and weigh.
(a 3) cold moudling directly passes into the raw material after extruding in the desk mould, cold moudling under every square centimeter of material pressurization 25MPa condition, make plastic components be wrapped in the surface of paper and aluminium foil, pressurize 5min after the moulding is cooled to 70 ℃～80 ℃, gets product.
According to product demand, with the one waste material extrusion forming in mould behind the hot extrude, make plastic components be wrapped in the surface of paper and aluminium foil, pressurize is cooled off, and gets product.
The common density of co-extrusion material is 1.05, and pressed density of the present invention is 1.15.Antistatic property is high.
Embodiment 2
Make family's classification garbage can
(1) reclaims pulverizing, the waste and old compound aluminium foil material that reclaims is carried out break process, be broken for particle diameter less than 5cm;
(2) hot extrude, under 270 ℃ of conditions that waste and old raw material is mixing by extruder, the paper in the waste and old raw material, aluminium foil and plastics are combined together, extrude behind 3～5min according to the product size requirement and weigh.
(a 3) cold moudling, raw material after extruding is directly passed in the dustbin mould, and cold moudling under every square centimeter of material pressurization 25MPa condition makes plastic components be wrapped in the surface of paper and aluminium foil, pressurize 5min after the moulding is cooled to 70 ℃～80 ℃ and gets product.
The common density of co-extrusion material is 1.05, and pressed density of the present invention is 1.18.Antistatic property is high.
Embodiment 3
The outer classification garbage can of make-up room
(1) reclaims pulverizing, the waste and old compound aluminium foil material that reclaims is carried out break process, be broken for particle diameter less than 5cm;
(2) hot extrude passes into extruder with waste and old raw material mixing under 260 ℃ of conditions, the paper in the waste and old raw material, aluminium foil and plastics are combined together, and extrudes behind 3～5min, according to required the weighing of product size.
(a 3) cold moudling is directly passed through the raw material after extruding in the outdoor dustbin mould, room temperature cold moudling under every square centimeter of material pressurization 28MPa condition, make plastic components be wrapped in the surface of paper and aluminium foil, carry out pressurize 10min after the moulding, be cooled to 70 ℃～80 ℃, get product.
The common density of co-extrusion material is 1.05, and pressed density of the present invention is 1.16.Antistatic property is high.
Claims (5)
1. technique that reclaims waste and old compound aluminium foil material based on the hot extrude technology of colding pressing it is characterized in that realizing by following step:
(1) reclaims pulverizing, the waste and old compound aluminium foil material that reclaims is carried out break process;
(2) hot extrude combines together the paper in the waste and old raw material, aluminium foil and plastics under hot conditions;
(a 3) cold moudling according to product demand, with the one waste material extrusion forming in mould behind the hot extrude, makes plastic components be wrapped in the surface of paper and aluminium foil, and pressurize is cooled off, and gets product.
2. a kind of technique that reclaims waste and old compound aluminium foil material based on the hot extrude technology of colding pressing as claimed in claim 1, after it is characterized in that carrying out break process in the described step (1), described waste and old compound aluminium foil material is that particle diameter is less than 5cm.
3. a kind of technique that reclaims waste and old compound aluminium foil material based on the hot extrude technology of colding pressing as claimed in claim 1 is characterized in that extrusion temperature is 250～270 ℃ in the described step (2), and finding time is 3～4min.
4. a kind of technique that reclaims waste and old compound aluminium foil material based on the hot extrude technology of colding pressing as claimed in claim 1, the pressure that it is characterized in that extrusion forming in the described step (3) are every square centimeter of material pressurization 25～28MPa.
5. a kind of technique that reclaims waste and old compound aluminium foil material based on the hot extrude technology of colding pressing as claimed in claim 1 is characterized in that the dwell time in the described step (3) is 3～5min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110224411.5A CN102909210B (en) | 2011-08-05 | 2011-08-05 | Process based on hot extrusion cold press technology for recycling waste composite aluminum foil material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110224411.5A CN102909210B (en) | 2011-08-05 | 2011-08-05 | Process based on hot extrusion cold press technology for recycling waste composite aluminum foil material |
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| Publication Number | Publication Date |
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| CN102909210A true CN102909210A (en) | 2013-02-06 |
| CN102909210B CN102909210B (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110224411.5A Expired - Fee Related CN102909210B (en) | 2011-08-05 | 2011-08-05 | Process based on hot extrusion cold press technology for recycling waste composite aluminum foil material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103230918A (en) * | 2013-03-12 | 2013-08-07 | 宁波汉博贵金属合金有限公司 | Extrusion residue displacement extrusion technology having effect of high-efficiency recovery of silver-based alloy extrusion residue waste materials |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030003804A (en) * | 2001-07-03 | 2003-01-14 | 조성석 | An Al alloy materal for foaming by waste Al and Al alloy scrap, and a method of thereof |
| CN1443635A (en) * | 2002-03-13 | 2003-09-24 | 田建伟 | Aluminium-plastics contained waste paper regenerated granule material, its preparation method and application |
| CN101722639A (en) * | 2008-11-03 | 2010-06-09 | 青岛洁新再生资源科技开发有限公司 | Method for producing recyclable regenerative composite section with plastic paper aluminium flexible packaging box |
| CN101898195A (en) * | 2009-05-27 | 2010-12-01 | 上海林派环保科技有限公司 | Waste aluminium plastic compound packaging material recycling method |
| CN102091713A (en) * | 2009-12-09 | 2011-06-15 | 巨锋 | Production process for separating and recycling aluminum and plastic composite packing material |
-
2011
- 2011-08-05 CN CN201110224411.5A patent/CN102909210B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030003804A (en) * | 2001-07-03 | 2003-01-14 | 조성석 | An Al alloy materal for foaming by waste Al and Al alloy scrap, and a method of thereof |
| CN1443635A (en) * | 2002-03-13 | 2003-09-24 | 田建伟 | Aluminium-plastics contained waste paper regenerated granule material, its preparation method and application |
| CN101722639A (en) * | 2008-11-03 | 2010-06-09 | 青岛洁新再生资源科技开发有限公司 | Method for producing recyclable regenerative composite section with plastic paper aluminium flexible packaging box |
| CN101898195A (en) * | 2009-05-27 | 2010-12-01 | 上海林派环保科技有限公司 | Waste aluminium plastic compound packaging material recycling method |
| CN102091713A (en) * | 2009-12-09 | 2011-06-15 | 巨锋 | Production process for separating and recycling aluminum and plastic composite packing material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103230918A (en) * | 2013-03-12 | 2013-08-07 | 宁波汉博贵金属合金有限公司 | Extrusion residue displacement extrusion technology having effect of high-efficiency recovery of silver-based alloy extrusion residue waste materials |
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| CN102909210B (en) | 2015-06-17 |
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