JPS545833B2 - - Google Patents
Info
- Publication number
- JPS545833B2 JPS545833B2 JP2461075A JP2461075A JPS545833B2 JP S545833 B2 JPS545833 B2 JP S545833B2 JP 2461075 A JP2461075 A JP 2461075A JP 2461075 A JP2461075 A JP 2461075A JP S545833 B2 JPS545833 B2 JP S545833B2
- 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
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
- B29C48/336—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die
- B29C48/3366—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die using a die with concentric parts, e.g. rings, cylinders
-
- 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2461075A JPS545833B2 (en:Method) | 1975-02-27 | 1975-02-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2461075A JPS545833B2 (en:Method) | 1975-02-27 | 1975-02-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5198766A JPS5198766A (en:Method) | 1976-08-31 |
| JPS545833B2 true JPS545833B2 (en:Method) | 1979-03-22 |
Family
ID=12142908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2461075A Expired JPS545833B2 (en:Method) | 1975-02-27 | 1975-02-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS545833B2 (en:Method) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906066A (zh) * | 2019-12-09 | 2020-03-24 | 东台市竹林高科技材料有限公司 | 一种高强度抗压性的pvc管及其制备方法 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4867353A (en:Method) * | 1971-12-18 | 1973-09-14 | ||
| JPS4977962A (en:Method) * | 1972-11-29 | 1974-07-26 | ||
| JPS544555Y2 (en:Method) * | 1975-01-16 | 1979-02-27 |
-
1975
- 1975-02-27 JP JP2461075A patent/JPS545833B2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906066A (zh) * | 2019-12-09 | 2020-03-24 | 东台市竹林高科技材料有限公司 | 一种高强度抗压性的pvc管及其制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5198766A (en:Method) | 1976-08-31 |