JPS56117629A - Deformation of synthetic resin foam - Google Patents
Deformation of synthetic resin foamInfo
- Publication number
- JPS56117629A JPS56117629A JP2112080A JP2112080A JPS56117629A JP S56117629 A JPS56117629 A JP S56117629A JP 2112080 A JP2112080 A JP 2112080A JP 2112080 A JP2112080 A JP 2112080A JP S56117629 A JPS56117629 A JP S56117629A
- Authority
- JP
- Japan
- Prior art keywords
- foam
- hole
- auger
- perforation
- diameter
- 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.)
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/56—After-treatment of articles, e.g. for altering the shape
Landscapes
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
PURPOSE:To make possible continuous flow of opration without semifinished products being stuck by heating a rotary auger for perforation at temperature for melting a foam and piercing a hole in a hot foam right after manufacture. CONSTITUTION:During the hot state without cooling of synthetic resin foam mainly based on polyethylene, poly PVC and their copolymer which can be softened and molten by heating right after manufacture, a rotary auger for perforation is heated at foam melting temperature and perforation is carried out, so that continuous flow of operation is enabled. The auger used here is a round bar of 6mm. in diameter with a cone-shaped nose 1, and a tapered center 2 measuring 5mm. and further with one mm.-deep ''V'' letter-shaped groove 3, 3' running provided at two spots from the nose to the center on the surface in parallel with an axial direction. Under this constitution, the hole surface presents the same condition as if it were pierced in a foam. Because of a thin center, scraps can easily be discharged and a 6mm.-hole having no difference between the inlet of an auger and the diameter of a hole diameter can be opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2112080A JPS56117629A (en) | 1980-02-21 | 1980-02-21 | Deformation of synthetic resin foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2112080A JPS56117629A (en) | 1980-02-21 | 1980-02-21 | Deformation of synthetic resin foam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56117629A true JPS56117629A (en) | 1981-09-16 |
Family
ID=12046013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2112080A Pending JPS56117629A (en) | 1980-02-21 | 1980-02-21 | Deformation of synthetic resin foam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56117629A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0553899U (en) * | 1991-12-26 | 1993-07-20 | 勇 山口 | Heater drill |
| CN109623943A (en) * | 2018-11-26 | 2019-04-16 | 贾海洋 | A kind of moxa column high temperature carbonization drill process |
-
1980
- 1980-02-21 JP JP2112080A patent/JPS56117629A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0553899U (en) * | 1991-12-26 | 1993-07-20 | 勇 山口 | Heater drill |
| CN109623943A (en) * | 2018-11-26 | 2019-04-16 | 贾海洋 | A kind of moxa column high temperature carbonization drill process |
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