JPS61175429U - - Google Patents
Info
- Publication number
- JPS61175429U JPS61175429U JP1985060046U JP6004685U JPS61175429U JP S61175429 U JPS61175429 U JP S61175429U JP 1985060046 U JP1985060046 U JP 1985060046U JP 6004685 U JP6004685 U JP 6004685U JP S61175429 U JPS61175429 U JP S61175429U
- Authority
- JP
- Japan
- Prior art keywords
- weir
- screw
- sub
- main screw
- main
- 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.)
- Granted
Links
- 238000004898 kneading Methods 0.000 claims 1
Classifications
-
- 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
- B29C48/68—Barrels or cylinders
- B29C48/685—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads
- B29C48/686—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads having grooves or cavities
-
- 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
- B29C48/575—Screws provided with elements of a generally circular cross-section for shearing the melt, i.e. shear-ring elements
-
- 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
- B29C48/64—Screws with two or more threads
- B29C48/65—Screws with two or more threads neighbouring threads or channels having different configurations, e.g. one thread being lower than its neighbouring thread
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985060046U JPH0222268Y2 (US20110232667A1-20110929-C00004.png) | 1985-04-22 | 1985-04-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985060046U JPH0222268Y2 (US20110232667A1-20110929-C00004.png) | 1985-04-22 | 1985-04-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61175429U true JPS61175429U (US20110232667A1-20110929-C00004.png) | 1986-11-01 |
| JPH0222268Y2 JPH0222268Y2 (US20110232667A1-20110929-C00004.png) | 1990-06-15 |
Family
ID=30587034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985060046U Expired JPH0222268Y2 (US20110232667A1-20110929-C00004.png) | 1985-04-22 | 1985-04-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0222268Y2 (US20110232667A1-20110929-C00004.png) |
-
1985
- 1985-04-22 JP JP1985060046U patent/JPH0222268Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0222268Y2 (US20110232667A1-20110929-C00004.png) | 1990-06-15 |
