MY114865A - Improved injection molding method for producing shaped, hollow resin articles, and mold for use therein - Google Patents
Improved injection molding method for producing shaped, hollow resin articles, and mold for use thereinInfo
- Publication number
- MY114865A MY114865A MYPI9500326A MY114865A MY 114865 A MY114865 A MY 114865A MY PI9500326 A MYPI9500326 A MY PI9500326A MY 114865 A MY114865 A MY 114865A
- Authority
- MY
- Malaysia
- Prior art keywords
- hollow
- shaped
- molten resin
- mold
- resin mass
- Prior art date
Links
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
DISCLOSED IS AN INJECTION MOLDING METHOD FOR PRODUCING A SHAPED, HOLLOW RESIN ARTICLE BY INTRODUCING A PRESSURIZED FLUID INTO A MOLTEN RESIN MASS INJECTED INTO A MOLD CAVITY, WHEREIN, DURING THE INTRODUCTION OF THE PRESSURIZED FLUID, THE TEMPERATURE OF AT LEAST ONE PRESELECTED PORTION OF A BACK SURFACE OF THE MOLTEN RESIN MASS IS MAINTAINED AT A LEVEL WHICH IS AT LEAST 5 °C HIGHER THAN THE TEMPERATURE OF A FRONT SURFACE OF THE MOLTEN RESIN MASS, CAUSING THE FLUID TO FLOW INTO THE MOLTEN RESIN MASS ALONG A LINE SUBSTANTIALLY CORRESPONDING TO A LINE ALONG WHICH THE AT LEAST ONE PRESELECTED PORTION OF THE BACK SURFACE EXTENDS, SO THAT A SHAPED, HOLLOW RESIN ARTICLE PRODUCED HAS A HOLLOW IN A POSITION CORRESPONDING TO THE AT LEAST ONE PRESELECTED PORTION OF THE BACK SURFACE. BY THE METHOD OF THE PRESENT INVENTION, THE FLOW OF THE PRESSURIZED FLUID INTRODUCED CAN BE SURELY LED TO AN INTENDED PORTION IN THE MOLTEN RESIN MASS, SO THAT THE LOCATION OF A HOLLOW IN THE MOLTEN RESIN MASS CAN BE SURELY CONTROLLED. ACCORDING TO ONE PREFERRED EMBODIMENT OF THE PRESENT INVENTION, A SHAPED, HOLLOW RESIN ARTICLE PRODUCED HAS A THICKNESS OF AT LEAST 1.0 MM AS MEASURED AT A PORTION HAVING A HOLLOW THEREIN. ACCORDING TO ANOTHER PREFERRED EMBODIMENT OF THE PRESENT INVENTION, A SHAPED, HOLLOW RESIN ARTICLE PRODUCED HAS A THICKNESS OF 3.5 MM OR LESS AS MEASURED AT A PORTION HAVING A HOLLOW THEREIN. IN EACH OF THE PREFERRED EMBODIMENTS, A SHAPED, HOLLOW RESIN ARTICLE HAVING A FRONT SURFACE THEREOF WHICH IS IN A UNIFORM, SMOOTH SURFACE CONDITION CAN BE OBTAINED. ALSO DISCLOSED IS A MOLD FOR USE IN THE METHOD.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MYPI9500326 MY114865A (en) | 1995-02-11 | 1995-02-11 | Improved injection molding method for producing shaped, hollow resin articles, and mold for use therein |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MYPI9500326 MY114865A (en) | 1995-02-11 | 1995-02-11 | Improved injection molding method for producing shaped, hollow resin articles, and mold for use therein |
Publications (1)
Publication Number | Publication Date |
---|---|
MY114865A true MY114865A (en) | 2003-02-28 |
Family
ID=47221671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MYPI9500326 MY114865A (en) | 1995-02-11 | 1995-02-11 | Improved injection molding method for producing shaped, hollow resin articles, and mold for use therein |
Country Status (1)
Country | Link |
---|---|
MY (1) | MY114865A (en) |
-
1995
- 1995-02-11 MY MYPI9500326 patent/MY114865A/en unknown
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