CA2047812A1 - Manufacture of plastics articles - Google Patents
Manufacture of plastics articlesInfo
- Publication number
- CA2047812A1 CA2047812A1 CA002047812A CA2047812A CA2047812A1 CA 2047812 A1 CA2047812 A1 CA 2047812A1 CA 002047812 A CA002047812 A CA 002047812A CA 2047812 A CA2047812 A CA 2047812A CA 2047812 A1 CA2047812 A1 CA 2047812A1
- Authority
- CA
- Canada
- Prior art keywords
- moulded
- salt
- core
- plastics material
- bath
- 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.)
- Abandoned
Links
- 239000004033 plastic Substances 0.000 title claims abstract description 32
- 229920003023 plastic Polymers 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 38
- 239000011162 core material Substances 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 29
- 239000002991 molded plastic Substances 0.000 claims abstract description 13
- 239000012266 salt solution Substances 0.000 claims abstract description 13
- 239000000155 melt Substances 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 150000003839 salts Chemical class 0.000 claims description 40
- 238000010438 heat treatment Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 230000006698 induction Effects 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 6
- 239000000374 eutectic mixture Substances 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- 238000007654 immersion Methods 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 235000010333 potassium nitrate Nutrition 0.000 claims description 3
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical class [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 3
- 235000010344 sodium nitrate Nutrition 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims description 2
- 229920001187 thermosetting polymer Polymers 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 13
- 229910052787 antimony Inorganic materials 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910001092 metal group alloy Inorganic materials 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- LQBJWKCYZGMFEV-UHFFFAOYSA-N lead tin Chemical compound [Sn].[Pb] LQBJWKCYZGMFEV-UHFFFAOYSA-N 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- JWVAUCBYEDDGAD-UHFFFAOYSA-N bismuth tin Chemical compound [Sn].[Bi] JWVAUCBYEDDGAD-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 235000013824 polyphenols Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002699 waste material 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
- B29C33/52—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles soluble or fusible
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Cleaning By Liquid Or Steam (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9016389A GB2246736A (en) | 1990-07-26 | 1990-07-26 | Removing a meltable core from a moulded plastics article by immersion in a heated salt solution |
| GB9016389.0 | 1990-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2047812A1 true CA2047812A1 (en) | 1992-01-27 |
Family
ID=10679675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002047812A Abandoned CA2047812A1 (en) | 1990-07-26 | 1991-07-24 | Manufacture of plastics articles |
Country Status (7)
| Country | Link |
|---|---|
| CA (1) | CA2047812A1 (it) |
| DE (1) | DE4124315A1 (it) |
| ES (1) | ES2047413B1 (it) |
| FR (1) | FR2665103A1 (it) |
| GB (1) | GB2246736A (it) |
| IT (1) | IT1251123B (it) |
| MX (1) | MX9100398A (it) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9216043D0 (en) * | 1992-07-28 | 1992-09-09 | Dunlop Automotive Composites U | Manufacture of composite type plastics articles |
| GB2269777B (en) * | 1992-07-30 | 1997-04-02 | Masaru Nemoto | Mould core |
| ATE344131T1 (de) * | 2003-09-05 | 2006-11-15 | Michelin Soc Tech | Verfahren zur herstellung von zur herstellung von reifen dargestellten formkernen bzw. hergestellte reifen und vorrichtung zur reifenherstellung |
| FR3128659A1 (fr) * | 2021-11-03 | 2023-05-05 | Safran | Dispositif et procédé d’élimination d’un noyau en alliage métallique dans une pièce en matériau composite. |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB207790A (en) * | 1922-11-30 | 1924-05-15 | Leonhard Deutsch | A process of hardening the products of condensation from phenols and aldehydes |
| GB557714A (en) * | 1941-11-07 | 1943-12-01 | Carborundum Co | Method of making abrasive articles |
| GB1218548A (en) * | 1967-05-09 | 1971-01-06 | Tenaplas Ltd | Improvements in or relating to heating devices for thermoplastic pipes |
| NL7801157A (nl) * | 1977-02-28 | 1978-08-30 | Pont A Mousson | Werkwijze en inrichting voor de vervaardiging van produkten uit verknoopt thermoplastisch materiaal. |
| US4464324A (en) * | 1981-09-21 | 1984-08-07 | Ozen | Apparatus and method for injection moulding of plastic parts of irregular shape, hollow or undercut form |
| EP0138985A4 (en) * | 1983-03-28 | 1987-11-23 | Park Chem Co | PRINTING PRESS METHOD WITH THE USE OF SALT CORE AND COMPOSITION FOR THE PRODUCTION THEREOF. |
| DE3829475C1 (it) * | 1988-08-31 | 1989-11-09 | Aeg-Elotherm Gmbh, 5630 Remscheid, De |
-
1990
- 1990-07-26 GB GB9016389A patent/GB2246736A/en not_active Withdrawn
-
1991
- 1991-07-23 ES ES09101717A patent/ES2047413B1/es not_active Expired - Lifetime
- 1991-07-23 DE DE4124315A patent/DE4124315A1/de not_active Withdrawn
- 1991-07-24 CA CA002047812A patent/CA2047812A1/en not_active Abandoned
- 1991-07-25 FR FR9109416A patent/FR2665103A1/fr active Pending
- 1991-07-26 IT ITMI912081A patent/IT1251123B/it active IP Right Grant
- 1991-07-26 MX MX9100398A patent/MX9100398A/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| MX9100398A (es) | 1992-02-28 |
| ES2047413A1 (es) | 1994-02-16 |
| DE4124315A1 (de) | 1992-01-30 |
| IT1251123B (it) | 1995-05-04 |
| ITMI912081A0 (it) | 1991-07-26 |
| GB9016389D0 (en) | 1990-09-12 |
| GB2246736A (en) | 1992-02-12 |
| ITMI912081A1 (it) | 1992-01-27 |
| ES2047413B1 (es) | 1994-09-01 |
| FR2665103A1 (fr) | 1992-01-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |