DE3519291C2 - - Google Patents

Info

Publication number
DE3519291C2
DE3519291C2 DE3519291A DE3519291A DE3519291C2 DE 3519291 C2 DE3519291 C2 DE 3519291C2 DE 3519291 A DE3519291 A DE 3519291A DE 3519291 A DE3519291 A DE 3519291A DE 3519291 C2 DE3519291 C2 DE 3519291C2
Authority
DE
Germany
Prior art keywords
screw
melt
flight
extruder
worm
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
DE3519291A
Other languages
German (de)
English (en)
Other versions
DE3519291A1 (de
Inventor
Guenter Dr.-Ing. Langecker
Karl-Albert 5882 Meinerzhagen De Hardenacke
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.)
BATTENFELD GLOENCO EXTRUSION SYSTEMS Ltd DROITWICH WORCESTERSHIRE GB
Original Assignee
BATTENFELD GLOENCO EXTRUSION SYSTEMS Ltd DROITWICH WORCESTERSHIRE GB
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 BATTENFELD GLOENCO EXTRUSION SYSTEMS Ltd DROITWICH WORCESTERSHIRE GB filed Critical BATTENFELD GLOENCO EXTRUSION SYSTEMS Ltd DROITWICH WORCESTERSHIRE GB
Priority to DE19853519291 priority Critical patent/DE3519291A1/de
Publication of DE3519291A1 publication Critical patent/DE3519291A1/de
Application granted granted Critical
Publication of DE3519291C2 publication Critical patent/DE3519291C2/de
Granted 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
    • B29B7/40—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
    • B29B7/428—Parts or accessories, e.g. casings, feeding or discharging means
    • B29B7/429—Screws
    • 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
    • B29B7/82—Heating or cooling
    • B29B7/826—Apparatus therefor
    • 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
    • B29C48/56—Screws having grooves or cavities other than the thread or the channel
    • 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
    • B29C48/59—Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw
    • B29C48/605—Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw the thread being discontinuous
    • 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
    • B29C48/62—Screws characterised by the shape of the thread channel, e.g. U-shaped
    • 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)
DE19853519291 1985-05-30 1985-05-30 Verfahren zum homogenisieren und kuehlen der kunststoffschmelze, insbesondere einer mit einem triebmittel begasten kunststoff-schmelze, und extruder zu seiner ausuebung Granted DE3519291A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19853519291 DE3519291A1 (de) 1985-05-30 1985-05-30 Verfahren zum homogenisieren und kuehlen der kunststoffschmelze, insbesondere einer mit einem triebmittel begasten kunststoff-schmelze, und extruder zu seiner ausuebung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853519291 DE3519291A1 (de) 1985-05-30 1985-05-30 Verfahren zum homogenisieren und kuehlen der kunststoffschmelze, insbesondere einer mit einem triebmittel begasten kunststoff-schmelze, und extruder zu seiner ausuebung

Publications (2)

Publication Number Publication Date
DE3519291A1 DE3519291A1 (de) 1986-12-04
DE3519291C2 true DE3519291C2 (nl) 1989-07-13

Family

ID=6271942

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853519291 Granted DE3519291A1 (de) 1985-05-30 1985-05-30 Verfahren zum homogenisieren und kuehlen der kunststoffschmelze, insbesondere einer mit einem triebmittel begasten kunststoff-schmelze, und extruder zu seiner ausuebung

Country Status (1)

Country Link
DE (1) DE3519291A1 (nl)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63291632A (ja) * 1987-05-25 1988-11-29 Mitsubishi Heavy Ind Ltd 可塑化スクリュ
US5356208A (en) * 1993-04-07 1994-10-18 Zehev Tadmor Screw element having shearing and scraping flights
US6136246A (en) * 1997-11-07 2000-10-24 Rauwendaal Extrusion Engineering Screw extruder with improved dispersive mixing elements
DE10215806A1 (de) 2002-04-10 2003-10-23 Buehler Ag Mischer mit Durchsatzglättung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3252182A (en) * 1963-01-22 1966-05-24 Lavorazione Mat Plast Screw press for extrusion of plastics
DE1302096B (de) * 1965-03-18 1969-12-18 Reifenhaeuser Kg Schneckenpresse
US3504400A (en) * 1967-08-04 1970-04-07 Vish Khim T I Sesquithread feed worm for an extruder
DE2461320A1 (de) * 1973-01-17 1976-07-08 Exxon Research Engineering Co Schraubenmischer
US4131368A (en) * 1976-04-09 1978-12-26 Iddon Brothers Limited Scrolls for extruding machines
US4341474A (en) * 1980-08-27 1982-07-27 Wheeler Jr Norton C Extruder screw

Also Published As

Publication number Publication date
DE3519291A1 (de) 1986-12-04

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8363 Opposition against the patent
8339 Ceased/non-payment of the annual fee