GB931928A - Improvements in and relating to screw presses for the treatment of thermoplastic materials - Google Patents

Improvements in and relating to screw presses for the treatment of thermoplastic materials

Info

Publication number
GB931928A
GB931928A GB43476/61A GB4347661A GB931928A GB 931928 A GB931928 A GB 931928A GB 43476/61 A GB43476/61 A GB 43476/61A GB 4347661 A GB4347661 A GB 4347661A GB 931928 A GB931928 A GB 931928A
Authority
GB
United Kingdom
Prior art keywords
kestermann
thermoplastic materials
treatment
relating
screw presses
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
GB43476/61A
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.)
ROLF KESTERMANN
Original Assignee
ROLF KESTERMANN
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 ROLF KESTERMANN filed Critical ROLF KESTERMANN
Publication of GB931928A publication Critical patent/GB931928A/en
Expired legal-status Critical Current

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
    • B29B7/484—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 with two shafts provided with screws, e.g. one screw being shorter than the other
    • 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
    • B29C48/395—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
    • B29C48/41—Intermeshing counter-rotating screws
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/003—Compounds containing elements of Groups 4 or 14 of the Periodic Table without C-Metal linkages
    • 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)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Edible Seaweed (AREA)
  • Meat, Egg Or Seafood Products (AREA)

Abstract

931,928. Pug mills. R. KESTERMANN, and A. KESTERMANN, [trading as GERHARD KESTERMANN ZAHNRADERUND MASCHINENFABRIK KOMM.-GES.]. Dec. 5, 1961 [Dec. 6, 1960], No. 43476/61. Class 86. [Also in Group V] A screw press for thermoplastic materials comprises two or more screws L, R, in mesh with one another, on each of which at least one additional screw thread 3 is developed with a diameter increasing in the direction of flow of the plastic up to the outer diameter of the screws. The press may have an entry portion AB and a discharge portion EF separated by the treatment portion CD in which the thread 3 expands to its final size.
GB43476/61A 1960-12-06 1961-12-05 Improvements in and relating to screw presses for the treatment of thermoplastic materials Expired GB931928A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK42326A DE1155232B (en) 1960-12-06 1960-12-06 Screw extrusion press for processing thermoplastics

Publications (1)

Publication Number Publication Date
GB931928A true GB931928A (en) 1963-07-24

Family

ID=7222708

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43476/61A Expired GB931928A (en) 1960-12-06 1961-12-05 Improvements in and relating to screw presses for the treatment of thermoplastic materials

Country Status (6)

Country Link
BE (1) BE621534A (en)
CH (1) CH394593A (en)
DE (1) DE1155232B (en)
FR (1) FR1310147A (en)
GB (1) GB931928A (en)
LU (2) LU40853A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4797077A (en) * 1984-09-27 1989-01-10 Anderson Dean R G Rotary expansible chamber device
DE4239220C2 (en) * 1992-11-21 1996-08-22 Blach Verfahrenstechnik Gmbh Constant twist - twin screw extruder

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE884105C (en) * 1943-05-30 1953-08-03 Dynamit Nobel Ag Injection molding process and device for the production of all kinds of molded parts from thermoplastic materials
DE879913C (en) * 1944-02-22 1953-06-18 Bayer Ag Kneading device with multi-pitch screws

Also Published As

Publication number Publication date
CH394593A (en) 1965-06-30
LU40859A1 (en) 1962-01-23
FR1310147A (en) 1963-03-06
BE621534A (en) 1900-01-01
DE1155232B (en) 1963-10-03
LU40853A1 (en) 1962-01-22

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