IT1274737B - Dispositivo di tenuta a materiale fuso per estrusori per lavorare polimeri termoplastici o gomma - Google Patents

Dispositivo di tenuta a materiale fuso per estrusori per lavorare polimeri termoplastici o gomma

Info

Publication number
IT1274737B
IT1274737B ITMI941778A ITMI941778A IT1274737B IT 1274737 B IT1274737 B IT 1274737B IT MI941778 A ITMI941778 A IT MI941778A IT MI941778 A ITMI941778 A IT MI941778A IT 1274737 B IT1274737 B IT 1274737B
Authority
IT
Italy
Prior art keywords
extruders
rubber
sealing device
thermoplastic polymers
melting sealing
Prior art date
Application number
ITMI941778A
Other languages
English (en)
Inventor
Friedrich-Otto Behrens
Ulrich Probler
Jurgen Voigt
Original Assignee
Berstorff Gmbh Masch Hermann
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Berstorff Gmbh Masch Hermann filed Critical Berstorff Gmbh Masch Hermann
Publication of ITMI941778A0 publication Critical patent/ITMI941778A0/it
Publication of ITMI941778A1 publication Critical patent/ITMI941778A1/it
Application granted granted Critical
Publication of IT1274737B publication Critical patent/IT1274737B/it

Links

Classifications

    • 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
    • B29C48/63—Screws having sections without mixing elements or threads, i.e. having cylinder shaped sections
    • 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
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/84—Venting or degassing ; Removing liquids, e.g. by evaporating components
    • B29B7/845—Venting, degassing or removing evaporated components in devices with rotary stirrers
    • 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
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/88—Adding charges, i.e. additives
    • B29B7/94—Liquid charges
    • 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
    • B29C48/254—Sealing means
    • 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
    • B29C48/268—Throttling of the flow, e.g. for cooperating with plasticising elements or for degassing
    • 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
    • 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
    • B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
    • 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
    • B29C48/535—Screws with thread pitch varying along the longitudinal axis
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
ITMI941778A 1993-09-30 1994-08-26 Dispositivo di tenuta a materiale fuso per estrusori per lavorare polimeri termoplastici o gomma IT1274737B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4333233A DE4333233C2 (de) 1993-09-30 1993-09-30 Schmelzeabdichteinrichtung an Extrudern für thermoplastische Kunststoffe oder Kautschuk

Publications (3)

Publication Number Publication Date
ITMI941778A0 ITMI941778A0 (it) 1994-08-26
ITMI941778A1 ITMI941778A1 (it) 1996-02-26
IT1274737B true IT1274737B (it) 1997-07-24

Family

ID=6498996

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI941778A IT1274737B (it) 1993-09-30 1994-08-26 Dispositivo di tenuta a materiale fuso per estrusori per lavorare polimeri termoplastici o gomma

Country Status (5)

Country Link
US (1) US5490725A (it)
JP (1) JP3678441B2 (it)
DE (1) DE4333233C2 (it)
GB (1) GB2282344B (it)
IT (1) IT1274737B (it)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2909577B2 (ja) * 1993-10-29 1999-06-23 トヨタ自動車株式会社 樹脂廃材の再生方法及び装置
CN1110268C (zh) * 1996-07-18 2003-06-04 温吉尔制造公司 短长度挤压式烹制装置以及采用该装置的挤压烹制方法
US5694833A (en) * 1996-07-18 1997-12-09 Wenger Manufacturing, Inc. Short length tapered extrusion cooking device
US5939124A (en) * 1996-07-18 1999-08-17 Wenger Manufacturing, Inc. Method of extrusion cooking an edible material
AT407855B (de) * 1997-04-23 2001-07-25 Bacher Helmut Verfahren und vorrichtung zur überwachung des abnützungsgrades einer ein plastifiziertes material fördernden dichtschnecke
DE19810324C2 (de) * 1998-03-11 2001-10-31 Gefinex Jackon Gmbh Schmelzeabdichtung am Extruder
US20030016585A1 (en) * 1998-05-06 2003-01-23 Leveque Alain Yves Low compression screw
JP3816282B2 (ja) * 1999-11-08 2006-08-30 株式会社神戸製鋼所 二軸連続混練機によるコンパウンド製造方法
JP2002018929A (ja) * 2000-07-12 2002-01-22 Hero:Kk 生分解性発泡体製造装置
BR0213265A (pt) * 2001-10-18 2004-10-26 Community Entpr Llc Aparelho para moldagem por injeção de artigos com múltiplas camadas
US6921191B2 (en) * 2002-08-23 2005-07-26 Concor Tool And Machinery Injection/extruder screw
JP2006515815A (ja) * 2003-01-27 2006-06-08 コミュニティー エンタープライジズ， エルエルシー 成形マシンに対しパージ効果性を最大とさせる装置及び方法
CA2680384C (en) * 2007-03-10 2012-09-11 Cool Options, Inc. Screw design and method for metal injection molding
GB2450704A (en) * 2007-07-03 2009-01-07 Mars Inc Screw extruder with a fluid inlet and a method of extruding
US8641263B2 (en) * 2008-11-24 2014-02-04 Kraft Foods Group Brands Llc Method and apparatus for continuous processing of whole muscle meat products
US8308342B2 (en) * 2008-11-24 2012-11-13 Kraft Foods Global Brands Llc Processing elements for mixing meat products
US8187651B2 (en) 2008-11-24 2012-05-29 Kraft Foods Global Brands Llc Method and apparatus for continuous processing of whole muscle meat products
JP2012025153A (ja) * 2010-06-21 2012-02-09 Fp Corp 多段式の熱可塑性樹脂押出装置およびそれを用いた熱可塑性樹脂の押出方法
FI129499B (en) * 2018-02-26 2022-03-31 Teknologian Tutkimuskeskus Vtt Oy Procedure for performing thermolysis and thermolysis equipment
CN110154354B (zh) * 2019-05-14 2024-04-02 佛山智塑科技有限公司 一种挤出机端面密封结构
DE102019006844B3 (de) * 2019-10-01 2020-12-03 Jochen Hennes Extruder mit einer Schnecke mit Dichtzone
CN112458549B (zh) * 2020-11-16 2021-08-27 佛山市顺德区宝富莱无纺布有限公司 一种纺粘无纺布制造工艺

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2835514A (en) * 1954-03-03 1958-05-20 Ingersoll Rand Co Rotary shaft seal
DE1145787B (de) * 1959-03-10 1963-03-21 Kloeckner Humboldt Deutz Ag Schneckenstrangpresse mit einem Stauabschnitt, dessen Querschnitt veraenderlich ist
NL297041A (it) * 1961-02-23 1900-01-01
AT284421B (de) * 1964-04-27 1970-09-10 Zdarske Strojirny A Slevarney Schneckenspritzgußmaschine zur Verarbeitung thermoplastischer Kunststoffe
DE1529811B2 (de) * 1965-06-03 1972-06-08 Barmag Barmer Maschinenfabrik Ag, 5600 Wuppertal Schneckenstrangpresse fuer thermoplastische kunststoffe
GB1153678A (en) * 1967-10-06 1969-05-29 Baker Perkins Inc Mixing and Severing Apparatus
US3917507A (en) * 1971-02-22 1975-11-04 Welding Engineers Countercurrent combined liquid and vapor stripping in screw devolatilizer
US3814779A (en) * 1971-04-01 1974-06-04 Cosden Oil & Chem Co Method of forming foamed polystyrene articles from polystyrene beads
CA993592A (en) * 1971-04-09 1976-07-20 Thomas J. Grail Polymers with improved properties and process therefor
US3905588A (en) * 1974-02-08 1975-09-16 Cincinnati Milacron Inc Method and apparatus for plasticating polymers
DE2413374A1 (de) * 1974-03-20 1975-10-02 Anisic Ladislav Scher- oder mischvorrichtung zur verarbeitung von plastischen massen
US4343755A (en) * 1978-09-06 1982-08-10 Union Carbide Corporation Process for extruding ethylene polymers
US4447156A (en) * 1981-08-31 1984-05-08 Northern Lights Trust Modular mixing apparatus including interchangeable fluid processing means
DE3275070D1 (de) * 1982-08-26 1987-02-19 Berstorff Gmbh Masch Hermann Extruder with vent zone
JPS59167240A (ja) * 1983-03-14 1984-09-20 Chisso Corp 有機フイラ−を配合された熱可塑性樹脂組成物の成形物の製法及びそのための装置
JPS6097805A (ja) * 1983-11-02 1985-05-31 Kobe Steel Ltd 単軸混練押出機
JPS6178619A (ja) * 1984-09-27 1986-04-22 Mitsui Toatsu Chem Inc 熱硬化性樹脂の押出試験装置
EP0213510B2 (en) * 1985-08-16 1995-01-11 Idemitsu Petrochemical Co. Ltd. Screw for molding thermoplastic resin
US4867927A (en) * 1987-02-13 1989-09-19 Idemitsu Petrochemical Co., Ltd. Process of producing thermplastic resin sheet and the like and molding screw therefor
DE3921108C1 (it) * 1989-06-28 1990-06-07 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover, De

Also Published As

Publication number Publication date
DE4333233C2 (de) 1995-10-12
GB2282344B (en) 1997-05-28
US5490725A (en) 1996-02-13
GB9414839D0 (en) 1994-09-14
GB2282344A (en) 1995-04-05
JPH07156248A (ja) 1995-06-20
ITMI941778A1 (it) 1996-02-26
DE4333233A1 (de) 1995-04-06
ITMI941778A0 (it) 1994-08-26
JP3678441B2 (ja) 2005-08-03

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19980831