JPS4990780A - - Google Patents
Info
- Publication number
- JPS4990780A JPS4990780A JP48000685A JP68573A JPS4990780A JP S4990780 A JPS4990780 A JP S4990780A JP 48000685 A JP48000685 A JP 48000685A JP 68573 A JP68573 A JP 68573A JP S4990780 A JPS4990780 A JP S4990780A
- Authority
- JP
- Japan
- 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.)
- Pending
Links
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
- B29C48/505—Screws
- B29C48/625—Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP48000685A JPS4990780A (ro) | 1972-12-31 | 1972-12-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP48000685A JPS4990780A (ro) | 1972-12-31 | 1972-12-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4990780A true JPS4990780A (ro) | 1974-08-29 |
Family
ID=11480601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48000685A Pending JPS4990780A (ro) | 1972-12-31 | 1972-12-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS4990780A (ro) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4220306Y1 (ro) * | 1966-11-05 | 1967-11-25 |
-
1972
- 1972-12-31 JP JP48000685A patent/JPS4990780A/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4220306Y1 (ro) * | 1966-11-05 | 1967-11-25 |