WO2004009326A1 - Extruder - Google Patents
Extruder Download PDFInfo
- Publication number
- WO2004009326A1 WO2004009326A1 PCT/EP2003/005074 EP0305074W WO2004009326A1 WO 2004009326 A1 WO2004009326 A1 WO 2004009326A1 EP 0305074 W EP0305074 W EP 0305074W WO 2004009326 A1 WO2004009326 A1 WO 2004009326A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- screw
- extruder
- sections
- ring
- diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/481—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with paddles, gears or discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/482—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs
- B29B7/483—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs the other mixing parts being discs perpendicular to the screw axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
- B29B7/489—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
- B29C48/251—Design of extruder parts, e.g. by modelling based on mathematical theories or experiments
- B29C48/2517—Design of extruder parts, e.g. by modelling based on mathematical theories or experiments of intermeshing 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
- B29C48/256—Exchangeable extruder parts
- B29C48/2564—Screw parts
-
- 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
-
- 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
- B29C48/402—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 the screws having intermeshing parts
-
- 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
- B29C48/405—Intermeshing co-rotating 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
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/57—Screws provided with kneading disc-like elements, e.g. with oval-shaped elements
-
- 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
- B29C48/505—Screws
- B29C48/575—Screws provided with elements of a generally circular cross-section for shearing the melt, i.e. shear-ring elements
-
- 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
- B29C48/505—Screws
- B29C48/67—Screws having incorporated mixing devices not provided for in groups B29C48/52 - B29C48/66
Definitions
- the invention relates to an extruder for the continuous processing and / or processing of flowable materials according to the preamble of claim 1.
- kneading blocks are used in twin-screw extruders, which consist of cam disks arranged offset in the manner of spiral staircases (cf. DE-C-813154).
- the fabric is pressed through a narrow wedge gap between the cams and the extruder housing, which can result in different heating and partial overstressing due to shearing of the fabric, as well as causing locally above-average wear.
- the object of the invention is to optimally convert the drive energy of the extruder into a uniform processing and treatment of the material.
- the extruder has at least one screw element which is provided with a plurality of ring sections which are arranged concentrically or coaxially to the screw shaft at a distance from one another and are formed by screwing into the screw element.
- a pressure is initially built up by the screw sections of the screw element between the ring sections, by means of which the material is then pressed under shear action and expansion through the annular gap between the extruder housing and the ring sections and the pressure is released again.
- shear gap passage, pressure build-up, shear gap passage, etc. on the screw elements result in a defined stress on the material and thus a uniform stress without overstressing the substance or the screw.
- the ring and / or shear gap between the ring sections and the concave circular segments of the extruder housing can have a different height in order to produce a sufficient mixing and / or kneading action in accordance with the respective material.
- the ring section can possibly only correspond to the core diameter of the worm shaft. speak.
- the annular gap preferably has a height of 10% to 90% of the flight depth of the screw.
- a diameter of the ring sections which corresponds approximately to the center distance of two adjacent shafts is particularly preferred.
- the screw sections lying between two adjacent ring sections generally have a length of at least 1/10, preferably at least 1/5, of the screw diameter.
- the ring sections are preferably formed by screwing into the screw element.
- the recesses preferably have a depth of, for example, 1/2 or less of the pitch.
- the angle of the flanks of the recesses can be 30 to 90 degrees, for example. It is preferable to carry out oblique screw-ins, in particular at an angle of approximately 60 degrees to the shaft axis.
- the screw element By removing material from the screw comb and flanks, the screw element can be provided with further sections.
- an essentially conveyor-neutral mixing section can be provided by material removal.
- a screw element is made available, in particular for multi-shaft extruders, with which the most varied requirements of process engineering can be met, from a defined longitudinal mixing of large volumes in the deciliter range to an intensive and sustainable action in the centimeter to milliliter range.
- the worm gear can continue at the same pitch angle. That is, the screw sections of the screw element, apart from the screwed-in interruptions in the area of the ring sections, can form a continuous screw flight.
- Additional dispersion areas are obtained through the ring sections.
- a substantial increase in the dispersing area can also be achieved in that the screw sections between the ring sections are progressively offset with respect to one another with the same direction of rotation, for example with an angular offset by half the pitch. Due to the angularly offset screw sections, stepped, angularly offset end faces are formed as additional dispersion surfaces.
- the extruder according to the invention can only have two screw shafts. However, it can also have at least three shafts arranged in a cavity of the extruder housing along a circle or arc with the same central angular distance, the extruder housing being provided on the radially inner and outer side of the cavity with concave circular segments parallel to the extruder axis, on which the screw elements are sealed are performed, as described for example in EP-B-0788867.
- a material can pass through the shaft ring from one side of the cavity to the other.
- Figure 1 shows a cross section through a twin-screw extruder with tightly intermeshing screw elements on the entire circumference;
- 2a to 2c show a side view, perspective view or view of the end profile of a first embodiment of the screw element
- 3 a to 3 b show a side view, perspective view or view of the end profile of a second embodiment of the screw element
- Figure 4 is a perspective view of a third embodiment of the screw element.
- Figure 5 is a perspective view of a fourth embodiment of the screw element
- the screw elements 1 have an end profile 2, which is composed of three arcs A-B, E-F and A-E.
- the circular arc AB has a diameter which corresponds to the outer screw diameter D
- the circular arc EF has a diameter which corresponds to the screw core diameter d
- the circular arc AE has a diameter whose radius corresponds to the center distance Ax of the two screw elements 1 (cf. EP-B -0002131).
- the intermeshing screw elements 1 of the twin-screw extruder are fixed against rotation on two parallel, co-rotating shafts 3, which are guided to the screw shafts 3 parallel circular segments 4 of the extruder housing 6, so that two gussets 5 are formed.
- the two-flight screw element 1 has three ring sections 8 which are concentric with the shaft axis 7 and are arranged at a distance.
- the ring sections 8 are here, in relation to the conveying direction shown by the arrow 9, provided on the side of the screw element 1 facing the outlet of the extruder, that is to say a long screw section 11a is provided in the conveying direction 9, after which the first two ring sections are located 8 connect two shorter screw sections 11b and 11c and, after the third ring section 8, an even shorter screw section lld.
- the distance of the ring sections 8 from one another corresponds to approximately one third of the screw diameter and the distance of the end face of the screw segment 11d from the adjacent ring section 8 corresponds only to approximately 1/6 D.
- the ring sections 8 are obtained by screwing 12 into the screw element 1.
- the angle of the flanks 13 of the recesses 12 to the shaft axis 10 is approximately 60 degrees.
- the height of the annular gaps 14 between the ring sections 8 and the extruder housing 6 is approximately half the pitch t, that is to say half the difference between the core diameter d and the screw outer diameter D (FIG. 1).
- the diameter dr of the ring sections 8 thus corresponds approximately to the center distance Ax of the shafts 3 from one another.
- the screw element 1 according to FIGS. 3a to 3c essentially differs from that according to FIGS. 2a to 2c in that instead of the screw section 11a, a section 15 which is neutral in terms of conveyance is provided, which is formed by a corresponding material removal of the screw comb of the screw element 1.
- the screw element 1 according to FIGS. 3a to 3c is particularly suitable for an extruder which has three or more screw elements which are arranged in a cavity of an extruder housing along a circle or arc with the same central angular distance and which divide the cavity into an interior and an exterior.
- a material balance between the inner and the outer frame must take place.
- the ring sections 8 and the short screw sections 11b, c and d of the screw element according to FIGS. 3a to 3c inhibit the product flow
- section 15 enables passage from one process chamber to the other.
- the screw element according to FIG. 4 differs from that according to FIGS. 3a to 3c essentially in that only two ring sections 8 are provided, the one ring section 8 being arranged between the one end face of the screw element 1 and the delivery-neutral section 15, and two screw sections lle and f separated by the second ring section 8 and a further screw section 11g are provided on the section 15 between the end face of the screw element 1 and the ring section 8.
- a continuous worm gear is formed, which is interrupted only by the turns 12 with the ring portions 8.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Algebra (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES03730036.5T ES2523296T3 (es) | 2002-07-22 | 2003-05-14 | Extrusora |
| EP03730036.5A EP1523403B1 (de) | 2002-07-22 | 2003-05-14 | Extruder |
| US10/503,143 US7270471B2 (en) | 2002-07-22 | 2003-05-14 | Extruder |
| JP2004522162A JP4369366B2 (ja) | 2002-07-22 | 2003-05-14 | 押出機 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10233213A DE10233213B4 (de) | 2002-07-22 | 2002-07-22 | Extruder |
| DE10233213.4 | 2002-07-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004009326A1 true WO2004009326A1 (de) | 2004-01-29 |
Family
ID=30469027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2003/005074 Ceased WO2004009326A1 (de) | 2002-07-22 | 2003-05-14 | Extruder |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7270471B2 (de) |
| EP (1) | EP1523403B1 (de) |
| JP (1) | JP4369366B2 (de) |
| DE (1) | DE10233213B4 (de) |
| ES (1) | ES2523296T3 (de) |
| WO (1) | WO2004009326A1 (de) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7270471B2 (en) * | 2002-07-22 | 2007-09-18 | Blach Verwaltungs Gmbh & Co. Kg | Extruder |
| US7284897B2 (en) * | 2002-07-22 | 2007-10-23 | Blach Verwaltungs Gmbh & Co. Kg | Extruder for continuously working and/or processing flowable materials |
| US20090302493A1 (en) * | 2006-03-10 | 2009-12-10 | Abbott Gmbh & Co., Kg | Process for producing a solid dispersion of an active ingredient |
| WO2009152910A1 (de) * | 2008-06-20 | 2009-12-23 | Bayer Technology Services Gmbh | Verfahren zur konstruktion gleichsinnig rotierender sich berührender körper und computerprogrammprodukt um das verfahren durchzuführen und hergestellte schneckenelemente |
| WO2011069896A1 (de) * | 2009-12-08 | 2011-06-16 | Bayer Technology Services Gmbh | Verfahren zur konstruktion gleichsinnig rotierender, sich berührender körper und computersystem zur ausführung des verfahrens |
| US8434928B2 (en) * | 2004-10-26 | 2013-05-07 | Blach Verwaltungs Gmbh & Co. Kg | Extruder having parallel shafts with combined elements |
| WO2014207121A1 (fr) * | 2013-06-27 | 2014-12-31 | Clextral | Elément de vis pour une extrudeuse bivis corotative, ainsi que vis et extrudeuse bivis corotative correspondantes |
| WO2023169894A1 (de) | 2022-03-11 | 2023-09-14 | Covestro Deutschland Ag | Schneckenelemente mit verbesserter mischwirkung und druckaufbau |
| EP4458548A1 (de) | 2023-05-04 | 2024-11-06 | Covestro Deutschland AG | Schneckenelemente mit verbesserter mischwirkung und verbessertem wärmeübergang und deren verwendung |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005053907B4 (de) * | 2005-11-11 | 2009-05-20 | Blach Verwaltung Gmbh & Co.Kg | Mehrwellenextruder |
| DE102006014692B3 (de) * | 2006-03-28 | 2007-08-02 | Berstorff Gmbh | Schneckenelement |
| DE102007016346A1 (de) * | 2007-04-03 | 2008-10-09 | Blach Verwaltungs Gmbh & Co. Kg | Mehrwellenextrudervorrichtung und Verfahren zum Betreiben derselben |
| JP4746014B2 (ja) * | 2007-07-09 | 2011-08-10 | 株式会社日本製鋼所 | 溶融混練脱揮押出機 |
| WO2009021334A1 (en) * | 2007-08-15 | 2009-02-19 | Ivan Askgaard | Propulsion system and method for a cable ferry |
| DE102008016862C5 (de) * | 2008-04-02 | 2019-12-19 | Blach Verwaltungs Gmbh & Co. Kg | Extruder |
| US20100052206A1 (en) * | 2008-08-29 | 2010-03-04 | Christopher Lane Kerr | Extrusion Mixing Screw And Method Of Use |
| US8783939B2 (en) | 2009-07-16 | 2014-07-22 | Blach Verwaltungs Gmbh & Co. Kg | Extruder |
| AT509710B1 (de) | 2010-03-24 | 2011-11-15 | Josef Ing Blach | Extruder |
| JP4829372B1 (ja) * | 2010-08-12 | 2011-12-07 | ファナック株式会社 | 射出成形機の材料供給装置のスクリュ |
| US10434568B2 (en) | 2012-04-12 | 2019-10-08 | Loukus Technologies, Inc. | Thermal isolation spray for casting articles |
| JP7180244B2 (ja) * | 2018-09-27 | 2022-11-30 | セイコーエプソン株式会社 | 可塑化装置 |
| CN110901016B (zh) * | 2019-11-04 | 2021-09-03 | 大维塑料技术(南京)有限公司 | 一种挤塑机的螺杆 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2676355A (en) * | 1950-03-08 | 1954-04-27 | Pasquetti Carlo | Screw press, more particularly for extruding plastic materials |
| DE2934297A1 (de) * | 1979-08-24 | 1981-03-26 | Eberhard Dipl.-Ing. 7000 Stuttgart Grünschloß | Mehrgaengige extruderschnecke |
| JPH0262222A (ja) * | 1988-08-30 | 1990-03-02 | Mitsubishi Heavy Ind Ltd | 押出機の圧力調整装置 |
| EP1002633A2 (de) * | 1998-11-17 | 2000-05-24 | Sumitomo Chemical Company, Limited | Verfahren zur Herstellung einer Zusammensetzung aus thermoplastischem Harz und Kautschuk |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE813154C (de) * | 1949-09-29 | 1951-09-06 | Bayer Ag | Misch- und Knetvorrichtung |
| US3667733A (en) | 1970-01-28 | 1972-06-06 | Rudolf Paul Fritsch | Device for the plastication of powdery plastic materials |
| JPS5829733B2 (ja) * | 1977-11-19 | 1983-06-24 | 積水化学工業株式会社 | 押出機 |
| DE2854207C3 (de) | 1978-12-15 | 1984-06-20 | Basf Ag, 6700 Ludwigshafen | Schneckenextruder zum kontinuierlichen Aufbereiten plastifizierbarer Massen |
| DD159836A3 (de) * | 1981-05-06 | 1983-04-13 | Dieter Andersch | Stau-und mischelement fuer doppelschneckenextruder |
| GB8712545D0 (en) * | 1987-05-28 | 1987-07-01 | Unilever Plc | High shear mixing |
| DE3841728C1 (de) * | 1988-12-10 | 1990-03-01 | Hermann Berstorff Maschinenbau Gmbh, 30627 Hannover | Ein- oder Doppelschneckenextruder zum Einarbeiten von pulverförmigen oder faserförmigen Additiven in eine thermoplastische Kunststoffschmelze |
| DE3841729C1 (de) * | 1988-12-10 | 1990-03-01 | Hermann Berstorff Maschinenbau Gmbh, 30627 Hannover | Ein- oder Doppelschneckenextruder zum Entgasen von thermoplastischen Kunststoffschmelzen |
| DE3843576A1 (de) * | 1988-12-23 | 1990-07-12 | Jv Kunststoffwerk | Verfahren und vorrichtung zur herstellung von kunststoffformteilen |
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| DE19847102C1 (de) | 1998-10-13 | 2000-01-05 | 3 & Extruder Gmbh | Maschine zum kontinuierlichen Bearbeiten von fließfähigen Materialien |
| JP4670173B2 (ja) * | 2000-05-12 | 2011-04-13 | 株式会社デンソー | 押出成形装置 |
| DE10122462C1 (de) | 2001-05-09 | 2002-10-10 | 3 & Extruder Gmbh | Vorrichtung mit Schnecken zum Homogenisieren und/oder Dispergieren eines viskosen Stoffes und eines Feststoffes und/oder eines anderen Stoffes unterschiedlicher Viskosität |
| DE10207145B4 (de) * | 2002-02-20 | 2004-07-15 | Blach, Josef A. | Vorrichtung zum Dispergieren und Aufschmelzen fließfähiger Stoffe |
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| DE10233213B4 (de) * | 2002-07-22 | 2004-09-09 | 3+Extruder Gmbh | Extruder |
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- 2003-05-14 ES ES03730036.5T patent/ES2523296T3/es not_active Expired - Lifetime
- 2003-05-14 WO PCT/EP2003/005074 patent/WO2004009326A1/de not_active Ceased
- 2003-05-14 EP EP03730036.5A patent/EP1523403B1/de not_active Expired - Lifetime
- 2003-05-14 JP JP2004522162A patent/JP4369366B2/ja not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7284897B2 (en) * | 2002-07-22 | 2007-10-23 | Blach Verwaltungs Gmbh & Co. Kg | Extruder for continuously working and/or processing flowable materials |
| US7270471B2 (en) * | 2002-07-22 | 2007-09-18 | Blach Verwaltungs Gmbh & Co. Kg | Extruder |
| US8434928B2 (en) * | 2004-10-26 | 2013-05-07 | Blach Verwaltungs Gmbh & Co. Kg | Extruder having parallel shafts with combined elements |
| EP2386293A1 (de) | 2006-03-10 | 2011-11-16 | Abbott GmbH & Co. KG | Verfahren zur Herstellung einer festen Dispersion eines aktiven Inhaltstoffes |
| US20090302493A1 (en) * | 2006-03-10 | 2009-12-10 | Abbott Gmbh & Co., Kg | Process for producing a solid dispersion of an active ingredient |
| EP2959890A1 (de) | 2006-03-10 | 2015-12-30 | Abbvie Deutschland GmbH & Co. KG | Feste dispersion eines biologisch aktiven bestandteils |
| RU2516152C2 (ru) * | 2008-06-20 | 2014-05-20 | Байер Интеллектуэль Проперти Гмбх | Способ изготовления шнековых элементов |
| WO2009152910A1 (de) * | 2008-06-20 | 2009-12-23 | Bayer Technology Services Gmbh | Verfahren zur konstruktion gleichsinnig rotierender sich berührender körper und computerprogrammprodukt um das verfahren durchzuführen und hergestellte schneckenelemente |
| RU2516152C9 (ru) * | 2008-06-20 | 2015-02-10 | Байер Интеллектуэль Проперти Гмбх | Способ изготовления шнековых элементов |
| CN102066083A (zh) * | 2008-06-20 | 2011-05-18 | 拜尔技术服务有限责任公司 | 用于构造同向旋转的接触体的方法和实施该方法的计算机程序产品和所制造的螺杆元件 |
| WO2009153001A1 (de) * | 2008-06-20 | 2009-12-23 | Bayer Technology Services Gmbh | Verfahren zur konstruktion gleichsinnig rotierender, sich berührender körper und computerprogrammprodukt um das verfahren durchzuführen |
| US8876360B2 (en) | 2008-06-20 | 2014-11-04 | Bayer Intellectual Property Gmbh | Method for constructing co-rotating, contiguous bodies and computer program product for carrying out said method |
| US8915642B2 (en) | 2008-06-20 | 2014-12-23 | Bayer Intellectual Property Gmbh | Method for constructing co-rotating contiguous bodies and computer program product for carrying out said method and screw elements produced accordingly |
| CN102725119A (zh) * | 2009-12-08 | 2012-10-10 | 拜尔技术服务有限责任公司 | 用于构造同向旋转相互接触体的方法以及用于实施该方法的计算机系统 |
| CN102725119B (zh) * | 2009-12-08 | 2015-09-16 | 拜尔技术服务有限责任公司 | 用于构造同向旋转相互接触体的方法以及用于实施该方法的计算机系统 |
| WO2011069896A1 (de) * | 2009-12-08 | 2011-06-16 | Bayer Technology Services Gmbh | Verfahren zur konstruktion gleichsinnig rotierender, sich berührender körper und computersystem zur ausführung des verfahrens |
| US9314954B2 (en) | 2009-12-08 | 2016-04-19 | Bayer Intellectual Property Gmbh | Method for constructing bodies that rotate in the same direction and are in contact with one another and computer system for carrying out said method |
| WO2014207121A1 (fr) * | 2013-06-27 | 2014-12-31 | Clextral | Elément de vis pour une extrudeuse bivis corotative, ainsi que vis et extrudeuse bivis corotative correspondantes |
| WO2023169894A1 (de) | 2022-03-11 | 2023-09-14 | Covestro Deutschland Ag | Schneckenelemente mit verbesserter mischwirkung und druckaufbau |
| EP4458548A1 (de) | 2023-05-04 | 2024-11-06 | Covestro Deutschland AG | Schneckenelemente mit verbesserter mischwirkung und verbessertem wärmeübergang und deren verwendung |
| WO2024227648A1 (de) | 2023-05-04 | 2024-11-07 | Covestro Deutschland Ag | Schneckenelemente mit verbesserter mischwirkung und verbessertem wärmeübergang und deren verwendung |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005533681A (ja) | 2005-11-10 |
| DE10233213B4 (de) | 2004-09-09 |
| JP4369366B2 (ja) | 2009-11-18 |
| EP1523403B1 (de) | 2014-09-24 |
| US20050084559A1 (en) | 2005-04-21 |
| EP1523403A1 (de) | 2005-04-20 |
| ES2523296T3 (es) | 2014-11-24 |
| DE10233213A1 (de) | 2004-02-19 |
| US7270471B2 (en) | 2007-09-18 |
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