CN102039660A - Superposed and combined type extruder - Google Patents
Superposed and combined type extruder Download PDFInfo
- Publication number
- CN102039660A CN102039660A CN2009102354457A CN200910235445A CN102039660A CN 102039660 A CN102039660 A CN 102039660A CN 2009102354457 A CN2009102354457 A CN 2009102354457A CN 200910235445 A CN200910235445 A CN 200910235445A CN 102039660 A CN102039660 A CN 102039660A
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- screw rod
- extrusion
- machine barrel
- layer
- combined type
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- 238000001125 extrusion Methods 0.000 claims abstract description 54
- 238000009826 distribution Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 238000009413 insulation Methods 0.000 claims abstract description 16
- 230000007704 transition Effects 0.000 claims abstract description 16
- 238000003475 lamination Methods 0.000 claims description 28
- 238000007599 discharging Methods 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 5
- 238000013461 design Methods 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 abstract description 31
- 238000002156 mixing Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 6
- 239000011229 interlayer Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 238000001704 evaporation Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 238000009717 reactive processing Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000010425 asbestos Substances 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/435—Sub-screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
- B29C48/38—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in the same barrel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/425—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders using three or more screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/455—Screws arranged to convey material towards each other, e.g. separate screws arranged after each other and feeding in opposite directions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/68—Barrels or cylinders
- B29C48/683—Barrels or cylinders for more than two screws
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a superposed and combined type extruder belonging to the field of machinery for blending modification, reactive processing, evaporating devolatilization and extrusion molding of high molecular materials. The extruder mainly comprises a transmission system, a charging system, multiple layers of extrusion systems and heat insulation systems, wherein the extrusion systems comprise a rotating distribution system, barrels, a screw rod, temperature control systems, charge ports and discharge ports; the charging system is positioned at the charge port of the barrel of a first-layer extrusion system, the discharge port of the first-layer extrusion system is communicated with the charge port of a second-layer extrusion system, the discharge port of the second-layer extrusion system is communicated with the charge port of a third-layer extrusion system, and the rest of the extrusion systems are arranged in the same way; and the transmission system controls the rotation of the screw rod by means of a rotating gear and a transition gear of the rotating distribution system, the temperature control system on the barrel of each layer controls the temperature of the corresponding section, and the heat insulation systems are arranged among the barrels. By using the superposed structure of multiple layers of extrusion systems, the invention has the advantages of large total length-diameter ratio, low processing difficulty, strong application adaptability, convenient maintenance process, favorable inter-layer rotation matching, small occupied area of the complete extruder and low cost.
Description
Technical field
The present invention relates to a kind of extruder, belong to macromolecular material blending and modifying, reaction processing, evaporation devolatilization, extrusion molding machinery field.
Background technology
Extruder is the maximum class of institute's processing materials amount in the plastic molding machinery, and owing to single screw rod, twin-screw, multi-screw extruder blend processing and extrusion molding can be produced continuously, and equipment investment is few, the output height, thereby use very extensive.Yet in some occasion, the development of extruder has been subjected to restriction.For example some reaction extrusion molding requires residence time of material long, mixes fully, no matter present extruder is single screw rod or twin-screw and multiscrew, and draw ratio has reached the limit, so tank reactor is adopted in most reaction moulding, equipment investment is big, produces intermittently and carries out.And if screw rod extends again, the intensity of screw rod does not satisfy the requirement of ordinary production, in process of production, the time have the accident that screw rod twisted off to take place, especially for twin-screw, inner mandrel is a splined shaft, screwing element is enclosed within on the spline, for the double screw extruder of minor diameter, splined shaft is very thin, especially the part that damages easily.At present, a kind of method that addresses this problem employing is that extrude on two rank, and for example: first rank are two-rotor continuous mixer or double screw extruder, are drained into the second rank single screw extrusion machine after the mixing of materials, and certain second rank also can be double screw extruders.This combination, the machine floor space is big, and each rank is controlled respectively, the match and regulate complexity of output, the charging system on second rank will be revised, and causes this selection bad adaptability, need make special-purpose extruder according to material feature.This scheme cost height is difficult to adapt to the changeable demand of material.
Summary of the invention
The object of the present invention is to provide a kind of extruder that adapts to different material, the very big occasion of draw ratio of long, screw rod of technological requirement such as material reaction, the devolatilization time of staying especially, difficulty of processing reduces, screw strength improves, complete machine takes up an area of few, and is simple in structure, cleaning and easy to adjust.
For achieving the above object, the present invention is by the following technical solutions: lamination combined type extruder, mainly by transmission system, charging system, the extrusion system of multilayer and insulation system are formed, extrusion system comprises the rotation distribution system, machine barrel, screw rod, temperature control system, support system, feeding mouth and discharging opening, machine barrel one end is connected with the rotation distribution system, the other end is connected with support system, screw rod is positioned at machine barrel, one end of screw rod is connected with the rotation distribution system, the rotation distribution system drives screw rod and rotates, and the other end of screw rod links to each other with support system and constitutes two fulcrums supports; There are bearing and sealing device in support system inside, and support system is also played a supporting role to machine barrel; Temperature control system is arranged on the machine barrel, can be coated on the machine barrel outside or adopt boring or the chuck heat transfer, is used to control the temperature of machine barrel; Charging system is positioned at the feeding mouth place of the machine barrel of ground floor extrusion system, discharging opening is positioned at the machine barrel end away from feeding section of machine barrel, the discharging opening of ground floor extrusion system communicates with the feeding mouth of following one deck, material at the ground floor extrusion system continues to mix, plastifies and reaction at second layer extrusion system after mixing, plasticizing and reaction, enter into the feeding mouth of the 3rd layer of extrusion system by the discharging opening of second layer extrusion system, require to determine the number of plies of extrusion system according to material plasticizing, mixing and reaction; Transmission system has only one, the rotation of each layer extrusion system screw rod provides jointly by rotating distribution system and support system, transmission system is connected with the screw rod of ground floor by transmitting gear, driving the ground floor screw rod rotates, every increase one deck extrusion system wherein just increases a transition gear and one group of transmitting gear, and the transmitting gear of ground floor screw rod is passed to the transmitting gear of the second layer to rotation by transition gear, transmits successively, make the velocity of rotation interlock of each layer screw rod, output is complementary; The side of the machine barrel of each layer extrusion system or above can set up auxiliary charge door as requested, reinforced in machine barrel by feeding device; Temperature control system on each layer machine barrel is controlled the temperature of each section, and interlayer can be heat insulation by insulation system, and insulation system can be interstitial air, also can dose heat-barrier materials such as asbestos, felt between the space, improves effect of heat insulation.
Lamination combined type extruder of the present invention is arranged in the operative gear that rotates distribution system can be arranged in support system, and the arrangement of gears space increases, and makes the diameter of gear to increase, and then improves the intensity of gear.
The screw rod of each layer of lamination combined type extruder of the present invention can have screw head near the support system place, the screw rod of this end does not insert in the support system, screw rod is a cantilever design, by material screw rod is floated in machine barrel, and support system only plays the effect of end sealing and supports the effect of machine barrel.
Lamination combined type extruder transmission system of the present invention can be connected with the transmitting gear of ground floor, also can be connected with the transmitting gear of other layers, again by the transition gear transferring power.
Lamination combined type extruder transmission system of the present invention is connected with transition gear, and the transmitting gear that drives each layer by transition gear again rotates.
Last one deck discharging opening of lamination combined type extruder of the present invention is a discharge gate, and discharge gate also can be positioned on the axis direction of last one deck extrusion system screw rod, and screw rod has screw head, and this version helps linking to each other with follow-up subsidiary engine with head.
The machine barrel of lamination combined type extruder of the present invention is formed by connecting by multistage, if increase draw ratio, the screw rod that the machine barrel of the correspondent section of connecting again in machine barrel is changed respective length then gets final product.Also can realize by the number of plies that increases extrusion system.
The layout of lamination combined type extruder of the present invention is horizontal type structure or vertical structure, stack direction be arrange vertically or level about arrange, perhaps its orientation becomes 0 degree to any angle between 90 degree with horizontal plane, can parallel arrangement in the time of more than three layers, also can rotate to an angle around the transition gear center, constitute that " it " word shape is tortuous to be arranged, servicing unit such as reinforced or exhaust outlet in the middle of being beneficial to be provided with.
Lamination combined type extruder of the present invention is owing to adopt the structure of extrusion system multilayer stack, the draw ratio of every layer screw rod can reduce, and the total slenderness ratio after the stack can be very long, for example every layer draw ratio is that the total slenderness ratio after 25, four stacked adding is 100, and this structure not only every layer difficulty of processing reduces greatly, screw strength improves, and integral body reached traditional extruder numerical value that is beyond one's reach, and can satisfy the various requirement of mixing, plasticizing and reaction easily, and adaptability is strong; Owing to only be equipped with a cover transmission system, the rotation of each layer screw rod is by rotating the distribution system transferring power, and matching is good each other; Every layer of length reduces, and the dismounting screw rod is convenient, is easy to clean and maintenance; Overlaying structure takes up an area of few, and to compare cost low with multistage extruder.
Description of drawings
Fig. 1 is the three-dimensional structure schematic diagram of lamination combined type extruder of the present invention.
Fig. 2 is the two-dimensional structure schematic diagram of lamination combined type extruder of the present invention.
Fig. 3 is the rotation distribution system drive connection schematic diagram of lamination combined type extruder of the present invention, be Figure 1A-A to the drive connection schematic diagram.
Fig. 4 is that screw rod is a cantilever design in the extrusion system of lamination combined type extruder of the present invention, the schematic diagram that discharge gate is axial arranged.
Among the figure: the 1-transmission system, 2-rotates distribution system, 3-charging system, 4-machine barrel, 5-screw rod, 6-temperature control system, 7-discharging opening, 8-support system, 9-feeding mouth, 10-discharge gate, 11-insulation system, 12-transmitting gear, 13-transition gear.
The specific embodiment
As depicted in figs. 1 and 2, lamination combined type extruder of the present invention, mainly form by transmission system 1, charging system 3, multilayer extrusion system and insulation system, extrusion system comprise rotate distribution system 2,, machine barrel 4, screw rod 5, temperature control system 6, feeding mouth 9 and discharging opening 7, screw rod 5 is positioned at machine barrel 4, one end of screw rod 5 is connected with rotation distribution system 2, rotation distribution system 2 drive screw rods 5 rotate, and the other end of screw rod 5 links to each other with support system 8 and constitutes two fulcrums supports or take single fulcrum cantilever support as form commonly used at present.Support system 8 makes screw rod 5 rotate flexibly and support machine barrel 4 by its inner bearing and sealing device, the material of fusion can not flow in the bearing of support system 8 under the protection of sealing device, temperature control system 6 is coated on machine barrel 4 outsides or adopts boring or the chuck heat transfer, be used to control the temperature of machine barrel 4, charging system 3 is positioned at feeding mouth 9 places of ground floor extrusion system machine barrel 4, discharging opening 7 is positioned at machine barrel 4 ends away from feeding section of machine barrel 4, the discharging opening 7 of ground floor extrusion system communicates with the feeding mouth 9 of following one deck, at the material of ground floor extrusion system through mixing, plasticizing and reaction back continue to mix at second layer extrusion system, plasticizing and reaction, enter into the feeding mouth 9 of the 3rd layer of extrusion system by the discharging opening 7 of second layer extrusion system, according to material plasticizing, mix and react the number of plies of the definite extrusion system of requirement; Transmission system 1 has only one, the rotation of each layer extrusion system screw rod 5 provides jointly by rotating distribution system 2 and support system 8, transition gear 13 shown in Figure 3 and transmitting gear 12 are arranged in the schematic diagram that rotates distribution system 2, transmission system 1 is connected with the screw rod 5 of ground floor by transmitting gear 12, driving ground floor screw rod 5 rotates, every increase one deck extrusion system just increases a transition gear 13 and one group of transmitting gear 12, the transmitting gear 12 of ground floor screw rod 5 is passed to rotation by transition gear 13 transmitting gear 12 of the second layer, transmit successively, make the velocity of rotation interlock of each layer screw rod 5, output is complementary; As requested the side of the machine barrel 4 of each layer extrusion system or above set up auxiliary charge door, reinforced in machine barrel 4 by feeding device; The temperature of temperature control system 6 each sections of control on each layer machine barrel 4, interlayer can be undertaken heat insulation by insulation system 11, make the temperature between interlayer not produce reciprocal influence, insulation system 11 can be the interstitial air of 4 of machine barrels, also can be between the space, to dose heat-barrier material such as asbestos, to improve effect of heat insulation.
The machine barrel 4 of lamination combined type extruder is formed by connecting by multistage in the present embodiment, if increase draw ratio, the screw rod 5 that the machine barrel 4 of the correspondent section of connecting again in machine barrel 4 is changed respective length then gets final product.
The layout of lamination combined type extruder is a horizontal type structure in the present embodiment, each interlayer parallel arrangement.
Claims (10)
1. lamination combined type extruder, it is characterized in that: mainly form by the extrusion system and the insulation system of transmission system, charging system, multilayer, extrusion system comprises rotation distribution system, machine barrel, screw rod, temperature control system, support system, feeding mouth and discharging opening, machine barrel one end is connected with the rotation distribution system, the other end is connected with support system, screw rod is positioned at machine barrel, one end of screw rod is connected with the rotation distribution system, the rotation distribution system drives screw rod and rotates, and the other end of screw rod links to each other with support system and constitutes two fulcrums supports; There are bearing and sealing device in support system inside, and support system is also played a supporting role to machine barrel; Temperature control system is arranged on the machine barrel; Charging system is positioned at the feeding mouth place of the machine barrel of ground floor extrusion system, discharging opening is positioned at the machine barrel end away from feeding section of machine barrel, the discharging opening of ground floor extrusion system communicates with the feeding mouth of following one deck, the discharging opening of second layer extrusion system communicates with the feeding mouth of the 3rd layer of extrusion system, and the like; Transmission system has only one, the rotation of each layer extrusion system screw rod provides jointly by rotating distribution system and support system, transmission system is connected with the screw rod of ground floor by transmitting gear, driving the ground floor screw rod rotates, every increase one deck extrusion system just increases a transition gear and one group of transmitting gear, the transmitting gear of ground floor screw rod is passed to the transmitting gear of the second layer to rotation by transition gear, transmits successively, makes the velocity of rotation interlock of each layer screw rod; Temperature control system on each layer machine barrel is controlled the temperature of each section, and insulation system is set between machine barrel.
2. lamination combined type extruder according to claim 1 is characterized in that: temperature control system is coated on the machine barrel outside or adopts boring or the chuck heat transfer.
3. lamination combined type extruder according to claim 1 is characterized in that: insulation system is interstitial air or the heat-barrier material dosed between the space.
4. lamination combined type extruder according to claim 1 is characterized in that: the side of the machine barrel of each layer extrusion system or above set up auxiliary charge door, reinforced in machine barrel by feeding device;
5. lamination combined type extruder according to claim 1 is characterized in that: be arranged in the operative gear that rotates distribution system and be arranged in support system.
6. lamination combined type extruder according to claim 1, it is characterized in that: screw rod has screw head near the support system place, and the screw rod of this end does not insert in the support system, and screw rod is a cantilever design.
7. lamination combined type extruder according to claim 1 is characterized in that: transmission system is connected with the transmitting gear of ground floor or is connected with the transmitting gear of other layers, again by the transition gear transferring power; Or transmission system is connected with transition gear, and the transmitting gear that drives each layer by transition gear again rotates.
8. lamination combined type extruder according to claim 1 is characterized in that machine barrel is a monoblock type, or is formed by connecting by multistage.
9. lamination combined type extruder according to claim 1 is characterized in that: the discharging opening of last one deck extrusion system is a discharge gate, and discharge gate is positioned on the axis direction of screw rod, and screw rod has screw head.
10. lamination combined type extruder according to claim 1, it is characterized in that: the layout of extrusion system is horizontal type structure or vertical structure, stack direction be arrange vertically or level about arrange, perhaps its orientation become with horizontal plane 0 the degree to 90 the degree between any angle; Parallel arrangement in the time of more than three layers, or around the arrangement that rotates to an angle of transition gear center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102354457A CN102039660B (en) | 2009-10-26 | 2009-10-26 | Superposed and combined type extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102354457A CN102039660B (en) | 2009-10-26 | 2009-10-26 | Superposed and combined type extruder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102039660A true CN102039660A (en) | 2011-05-04 |
| CN102039660B CN102039660B (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102354457A Expired - Fee Related CN102039660B (en) | 2009-10-26 | 2009-10-26 | Superposed and combined type extruder |
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| Country | Link |
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| CN (1) | CN102039660B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3663069A1 (en) * | 2018-11-29 | 2020-06-10 | HB-Feinmechanik GmbH & Co.KG | Extrusion device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002264195A (en) * | 2001-03-14 | 2002-09-18 | Heisei Polymer Co Ltd | Resin rod-shaped article, and method and apparatus for manufacturing the same |
| JP2002537144A (en) * | 1999-02-16 | 2002-11-05 | ザ ダウ ケミカル カンパニー | Method and apparatus for extruding low bulk density polycarbonate material |
| CN2644148Y (en) * | 2003-08-25 | 2004-09-29 | 上海申威达机械有限公司 | Spiral cooling shroud of cylinder feeding portion |
| CN201538029U (en) * | 2009-10-26 | 2010-08-04 | 北京化工大学 | Laminated combined type extruder |
-
2009
- 2009-10-26 CN CN2009102354457A patent/CN102039660B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002537144A (en) * | 1999-02-16 | 2002-11-05 | ザ ダウ ケミカル カンパニー | Method and apparatus for extruding low bulk density polycarbonate material |
| JP2002264195A (en) * | 2001-03-14 | 2002-09-18 | Heisei Polymer Co Ltd | Resin rod-shaped article, and method and apparatus for manufacturing the same |
| CN2644148Y (en) * | 2003-08-25 | 2004-09-29 | 上海申威达机械有限公司 | Spiral cooling shroud of cylinder feeding portion |
| CN201538029U (en) * | 2009-10-26 | 2010-08-04 | 北京化工大学 | Laminated combined type extruder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3663069A1 (en) * | 2018-11-29 | 2020-06-10 | HB-Feinmechanik GmbH & Co.KG | Extrusion device |
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| Publication number | Publication date |
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| CN102039660B (en) | 2013-01-02 |
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Application publication date: 20110504 Assignee: JIANGSU GOLDEN MATERIAL Co.,Ltd. Assignor: Beijing University of Chemical Technology Contract record no.: 2013320000430 Denomination of invention: Superposed and combined type extruder Granted publication date: 20130102 License type: Common License Record date: 20130520 |
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