JPS5131824B2 - - Google Patents
Info
- Publication number
- JPS5131824B2 JPS5131824B2 JP47032794A JP3279472A JPS5131824B2 JP S5131824 B2 JPS5131824 B2 JP S5131824B2 JP 47032794 A JP47032794 A JP 47032794A JP 3279472 A JP3279472 A JP 3279472A JP S5131824 B2 JPS5131824 B2 JP S5131824B2
- 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.)
- Expired
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
- B29C48/62—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
- B29C48/25—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
- B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
-
- 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
- B29C48/565—Screws having projections other than the thread, e.g. pins
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47032794A JPS5131824B2 (en:Method) | 1972-04-01 | 1972-04-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47032794A JPS5131824B2 (en:Method) | 1972-04-01 | 1972-04-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS48100479A JPS48100479A (en:Method) | 1973-12-18 |
| JPS5131824B2 true JPS5131824B2 (en:Method) | 1976-09-09 |
Family
ID=12368744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP47032794A Expired JPS5131824B2 (en:Method) | 1972-04-01 | 1972-04-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5131824B2 (en:Method) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS567863B2 (en:Method) * | 1974-03-23 | 1981-02-20 | ||
| JPS5339360A (en) * | 1976-09-22 | 1978-04-11 | Furukawa Electric Co Ltd | Method of producing bridged polyolefin mold |
| JPS6337915A (ja) * | 1986-07-31 | 1988-02-18 | Sekisui Plastics Co Ltd | 熱可塑性樹脂発泡体の製法 |
| US9011131B2 (en) | 2010-03-11 | 2015-04-21 | Rms Equipment Llc | Lug type extruder screw |
| JP6846243B2 (ja) | 2017-03-10 | 2021-03-24 | マクセル株式会社 | 発泡成形体の製造方法及び製造装置 |
-
1972
- 1972-04-01 JP JP47032794A patent/JPS5131824B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS48100479A (en:Method) | 1973-12-18 |