FR904317A - Worm die - Google Patents

Worm die

Info

Publication number
FR904317A
FR904317A FR904317DA FR904317A FR 904317 A FR904317 A FR 904317A FR 904317D A FR904317D A FR 904317DA FR 904317 A FR904317 A FR 904317A
Authority
FR
France
Prior art keywords
worm
die
worm die
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.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LAVORAZIONE MAT PLAST
Original Assignee
LAVORAZIONE MAT PLAST
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 LAVORAZIONE MAT PLAST filed Critical LAVORAZIONE MAT PLAST
Application granted granted Critical
Publication of FR904317A publication Critical patent/FR904317A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/24—Extrusion presses; Dies therefor using screws or worms
    • B30B11/243—Extrusion presses; Dies therefor using screws or worms using two or more screws working in the same chamber
    • 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
    • B29C48/395—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
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/52—Screws with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance
    • B29C48/525—Conical 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
    • B29C48/03—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)
FR904317D 1943-05-06 1944-05-17 Worm die Expired FR904317A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT620684X 1943-05-06

Publications (1)

Publication Number Publication Date
FR904317A true FR904317A (en) 1945-11-02

Family

ID=11293273

Family Applications (1)

Application Number Title Priority Date Filing Date
FR904317D Expired FR904317A (en) 1943-05-06 1944-05-17 Worm die

Country Status (5)

Country Link
BE (1) BE456090A (en)
CH (1) CH242208A (en)
DE (1) DE883338C (en)
FR (1) FR904317A (en)
GB (1) GB620684A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE879861C (en) * 1950-08-04 1953-06-15 August Georg Schaefer Filling roller for screw presses for the production of thin-walled, dimensionally stable extruded articles, in particular of covers for electrical cables
DE2446420C2 (en) * 1974-09-28 1982-07-15 Krauss-Maffei AG, 8000 München Screw extruder for processing plastics
NO146803C (en) * 1980-06-13 1984-06-01 Stord Bartz As SCREW PRESSURE DEVICE
DE8138295U1 (en) * 1980-06-13 1982-09-23 Stord Bartz A/S, 5000 Bergen SCREW PRESS
AT376397B (en) * 1982-12-21 1984-11-12 Cincinnati Milacron Austria SCREW EXTRUSION PRESS
DE3888533T3 (en) * 1988-09-14 2004-03-04 Fratelli Babbini & C. Sas, Civitella Di Romagna Dewatering screw press with two or more screw-shaped elements with interlocking profiles.
DE4115583A1 (en) * 1991-05-13 1992-11-19 Johannes Dr Ing Weber MULTIPLE SCREW EXTRUDERS
JP3086217B1 (en) * 1999-05-07 2000-09-11 財団法人工業技術研究院 Dual screw rotor device

Also Published As

Publication number Publication date
GB620684A (en) 1949-03-29
CH242208A (en) 1946-04-30
BE456090A (en) 1900-01-01
DE883338C (en) 1956-03-08

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