FR2039736A5 - Mixer-extruder element for plastics - Google Patents

Mixer-extruder element for plastics

Info

Publication number
FR2039736A5
FR2039736A5 FR7009956A FR7009956A FR2039736A5 FR 2039736 A5 FR2039736 A5 FR 2039736A5 FR 7009956 A FR7009956 A FR 7009956A FR 7009956 A FR7009956 A FR 7009956A FR 2039736 A5 FR2039736 A5 FR 2039736A5
Authority
FR
France
Prior art keywords
mixer
plastics
extruder
extruder element
unit
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
FR7009956A
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Application granted granted Critical
Publication of FR2039736A5 publication Critical patent/FR2039736A5/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
    • B29C48/03—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
    • 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
    • B29C48/455—Screws arranged to convey material towards each other, e.g. separate screws arranged after each other and feeding in opposite directions

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)

Abstract

A mixer-extruder unit with paired screws receives independent inputs of material which undergo independent treatment in separate regions of the unit, the material is drawn off in separate flows after processing. The drive of the mixer-extruder screws is connected at adjacent ends of the shafts.
FR7009956A 1969-03-19 1970-03-19 Mixer-extruder element for plastics Expired FR2039736A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80842869A 1969-03-19 1969-03-19

Publications (1)

Publication Number Publication Date
FR2039736A5 true FR2039736A5 (en) 1971-01-15

Family

ID=25198734

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7009956A Expired FR2039736A5 (en) 1969-03-19 1970-03-19 Mixer-extruder element for plastics

Country Status (7)

Country Link
AU (1) AU1275270A (en)
BE (1) BE747602A (en)
CA (1) CA928914A (en)
CH (1) CH519383A (en)
DE (1) DE2012322A1 (en)
FR (1) FR2039736A5 (en)
NL (1) NL7003935A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3632256A (en) * 1969-03-19 1972-01-04 Union Carbide Corp Extrusion-compounding apparatus

Also Published As

Publication number Publication date
CH519383A (en) 1972-02-29
BE747602A (en) 1970-09-21
DE2012322A1 (en) 1970-10-08
NL7003935A (en) 1970-09-22
CA928914A (en) 1973-06-26
AU1275270A (en) 1971-09-23

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Legal Events

Date Code Title Description
ST Notification of lapse