JPH018350Y2 - - Google Patents
Info
- Publication number
- JPH018350Y2 JPH018350Y2 JP1984145570U JP14557084U JPH018350Y2 JP H018350 Y2 JPH018350 Y2 JP H018350Y2 JP 1984145570 U JP1984145570 U JP 1984145570U JP 14557084 U JP14557084 U JP 14557084U JP H018350 Y2 JPH018350 Y2 JP H018350Y2
- Authority
- JP
- Japan
- Prior art keywords
- groove
- flight
- grooves
- melting
- melting section
- 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
Links
- 239000000463 material Substances 0.000 claims description 64
- 238000002844 melting Methods 0.000 claims description 54
- 230000008018 melting Effects 0.000 claims description 54
- 239000012768 molten material Substances 0.000 claims description 21
- 230000007423 decrease Effects 0.000 claims description 13
- 230000010006 flight Effects 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 description 8
- 239000006185 dispersion Substances 0.000 description 7
- 238000002156 mixing Methods 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 238000004898 kneading Methods 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229920001903 high density polyethylene Polymers 0.000 description 3
- 239000004700 high-density polyethylene Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 235000012438 extruded product Nutrition 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 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
- B29C48/505—Screws
- B29C48/64—Screws with two or more threads
- B29C48/655—Screws with two or more threads having three or more threads
-
- 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
- B29C48/535—Screws with thread pitch varying along the longitudinal axis
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 |
|---|---|---|---|
| JP1984145570U JPH018350Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1984-09-25 | 1984-09-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984145570U JPH018350Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1984-09-25 | 1984-09-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6164429U JPS6164429U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1986-05-01 |
| JPH018350Y2 true JPH018350Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1989-03-06 |
Family
ID=30703824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984145570U Expired JPH018350Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1984-09-25 | 1984-09-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH018350Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4034124B2 (ja) * | 2002-06-05 | 2008-01-16 | 株式会社ブリヂストン | 押出機用スクリュー及びその製造方法 |
| KR100827251B1 (ko) | 2007-07-11 | 2008-05-07 | 주식회사 우진세렉스 | 사출성형기의 사출스크류 |
| JP5539943B2 (ja) * | 2011-10-24 | 2014-07-02 | 株式会社山城精機製作所 | ダブルフライトスクリュ |
-
1984
- 1984-09-25 JP JP1984145570U patent/JPH018350Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6164429U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1986-05-01 |