IT957639B - Perfezionamento nelle presse a coclea disposte in cascata per la lavorazione di materiali termo plastici polverulenti - Google Patents

Perfezionamento nelle presse a coclea disposte in cascata per la lavorazione di materiali termo plastici polverulenti

Info

Publication number
IT957639B
IT957639B IT49717/72A IT4971772A IT957639B IT 957639 B IT957639 B IT 957639B IT 49717/72 A IT49717/72 A IT 49717/72A IT 4971772 A IT4971772 A IT 4971772A IT 957639 B IT957639 B IT 957639B
Authority
IT
Italy
Prior art keywords
powderulent
cascade
improvement
processing
plastic materials
Prior art date
Application number
IT49717/72A
Other languages
English (en)
Italian (it)
Original Assignee
Barmag Barmer Maschf
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 Barmag Barmer Maschf filed Critical Barmag Barmer Maschf
Application granted granted Critical
Publication of IT957639B publication Critical patent/IT957639B/it

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
    • B29B7/80—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
    • B29B7/847—Removing of gaseous components before or after mixing
    • 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
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
    • B29B7/426—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix with consecutive casings or screws, e.g. for charging, discharging, mixing
    • 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
    • B29B7/86—Component parts, details or accessories; Auxiliary operations for working at sub- or superatmospheric pressure
    • 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
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
    • B29C48/766—Venting, drying means; Degassing means in the extruder apparatus in 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
    • B29C48/03—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)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
IT49717/72A 1971-04-27 1972-04-18 Perfezionamento nelle presse a coclea disposte in cascata per la lavorazione di materiali termo plastici polverulenti IT957639B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712120601 DE2120601B2 (de) 1971-04-27 1971-04-27 Verfahren und vorrichtung zum verarbeiten und entgasen thermisch empfindlicher pulverfoermiger thermoplaste

Publications (1)

Publication Number Publication Date
IT957639B true IT957639B (it) 1973-10-20

Family

ID=5806097

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49717/72A IT957639B (it) 1971-04-27 1972-04-18 Perfezionamento nelle presse a coclea disposte in cascata per la lavorazione di materiali termo plastici polverulenti

Country Status (8)

Country Link
JP (1) JPS559290B1 (xx)
AT (1) AT334609B (xx)
BE (1) BE780683A (xx)
CH (1) CH534043A (xx)
DE (1) DE2120601B2 (xx)
FR (1) FR2134549B1 (xx)
GB (1) GB1375237A (xx)
IT (1) IT957639B (xx)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2458776A1 (de) * 1974-12-12 1976-06-16 Kabel Metallwerke Ghh Verfahren zur herstellung von durch aufpfropfen einer silanverbindung in anwesenheit von feuchtigkeit vernetzbaren thermoplasten oder elastomeren
CA1138612A (en) * 1979-06-08 1983-01-04 Avinash C. Saxena Method and apparatus for drying wet polymerized materials
GB8306947D0 (en) * 1983-03-14 1983-04-20 Ici Plc Vented melter for thermoplastic polymers
US4529320A (en) * 1983-09-14 1985-07-16 Usm Corporation Rotary processors and method for devolatilizing materials
NL8400082A (nl) * 1984-01-10 1985-08-01 Wavin Bv Werkwijze en inrichting voor het spuitgieten van pvc-produkten.
US4711647A (en) * 1985-05-02 1987-12-08 Barmag Aktiengesellschaft Process and apparatus for degassing liquids, especially polymer melts and solutions
FR2621272B1 (fr) * 1987-10-06 1990-03-30 Mcneil Akron Repiquet Sarl Procede et machine pour la fabrication d'un produit fini par extrusion a partir d'une matiere thermoplastique extrudable de nature hygroscopique
DE3833777A1 (de) * 1987-10-08 1989-05-03 Barmag Barmer Maschf Hochgeschwindigkeitsextrusion mit der extruder-zahnradpumpe-kombination
NL8800904A (nl) * 1988-04-08 1989-11-01 Reko Bv Werkwijze voor het verwerken van een thermoplastisch polycondensatie-polymeer.
IT1243378B (it) * 1990-07-27 1994-06-10 Loctite Corp Procedimento ed impianto per l'erogazione particolarmente di un prodotto sigillante/adesivo
DE4027261C1 (xx) * 1990-08-29 1991-12-12 Continental Gummi-Werke Ag
DE4437994C1 (de) * 1994-10-25 1996-07-04 Hoechst Ag Entgasungsvorrichtung und ihre Verwendung
DE10054226A1 (de) * 2000-11-02 2002-05-08 Buehler Ag Verfahren zur Verarbeitung eines Polykondensats in einem Mehrwellen-Extruder
EP3053725A1 (de) * 2015-02-06 2016-08-10 LANXESS Deutschland GmbH Stopfschnecke
ES2862979T3 (es) * 2018-05-02 2021-10-08 Buss Ag Máquina mezcladora y amasadora y su uso
AT524541B1 (de) 2021-04-07 2022-07-15 Engel Austria Gmbh Vorrichtung zum Entgasen und Verfahren zum Entgasen einer plastifizierten Masse
CN115501641A (zh) * 2022-09-14 2022-12-23 上海永鸿机电设备科技有限公司 用于高压下连续进出料的超临界二氧化碳萃取系统及萃取分离工艺

Also Published As

Publication number Publication date
ATA224672A (de) 1976-05-15
GB1375237A (xx) 1974-11-27
BE780683A (fr) 1972-07-03
AT334609B (de) 1976-01-25
DE2120601B2 (de) 1973-08-09
DE2120601A1 (de) 1972-11-23
FR2134549B1 (xx) 1976-03-12
CH534043A (de) 1973-02-28
FR2134549A1 (xx) 1972-12-08
JPS559290B1 (xx) 1980-03-08

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