GB1040949A - Hollow body molding process - Google Patents
Hollow body molding processInfo
- Publication number
- GB1040949A GB1040949A GB2975263A GB2975263A GB1040949A GB 1040949 A GB1040949 A GB 1040949A GB 2975263 A GB2975263 A GB 2975263A GB 2975263 A GB2975263 A GB 2975263A GB 1040949 A GB1040949 A GB 1040949A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- mould
- soluble
- sleeves
- cavity
- 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
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
- B29C45/4457—Removing or ejecting moulded articles for undercut articles using fusible, soluble or destructible cores
-
- 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)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
1,040,949. Moulding hollow bodies. F. H. MALONEY CO. July 26, 1963 [Dec. 4, 1962], No. 29752/63. Heading B5A. A method of moulding hollow bodies of elastomeric materials comprises positioning a soluble core in a mould cavity, filling the cavity with uncured elastomeric material, which is then cured by heat, and dissolving out the soluble core. The core assembly comprises a support rod 56, extending through the core and beyond the diameter of the spherical cavity formed in the mould. Sleeves 58 enclose the ends of the rod and position valve anchor inserts 60. The core 54 may be formed by placing the supporting assembly within a mould, and filling the mould with soluble material and compressing it, or by moulding the sphere from a fused salt. Sodium chloride or other water-soluble salts may be used. The core may be glazed to render it impervious. The core is positioned by locating it between two mould halves 10, 12, sleeves 58 fitting in sockets 40. Elastomeric material, e.g. natural or synthetic rubber or polyurethane is introduced through transfer sprues 24 from a transfer pot 16, and the mould is heated by passing steam through a passageway 42. After vulcanization, sleeves 58 are removed, the support rod 56 withdrawn and the core 54 is dissolved out, to leave the inserts 60 retained in the sphere.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24230962A | 1962-12-04 | 1962-12-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1040949A true GB1040949A (en) | 1966-09-01 |
Family
ID=22914262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2975263A Expired GB1040949A (en) | 1962-12-04 | 1963-07-26 | Hollow body molding process |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1040949A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0173447A2 (en) * | 1984-07-24 | 1986-03-05 | Clarks Limited | Hollow body injection moulding process using a soluble core |
| EP0718085A1 (en) * | 1994-12-21 | 1996-06-26 | MAGNETI MARELLI S.p.A. | Process for the manufacture of hollow bodies of plastics material and installation which implements the process |
| CN104416693A (en) * | 2013-08-26 | 2015-03-18 | 黄建源 | Production mould of pipeline cleaning head |
| CN111089766A (en) * | 2019-12-11 | 2020-05-01 | 重庆大学 | Random closed cavity manufacturing equipment and method based on soluble cavity salt block |
| WO2024040631A1 (en) * | 2022-08-24 | 2024-02-29 | 禾材高科(苏州)有限公司 | Preparation method for inner-container-free high-pressure gas storage tank |
-
1963
- 1963-07-26 GB GB2975263A patent/GB1040949A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0173447A2 (en) * | 1984-07-24 | 1986-03-05 | Clarks Limited | Hollow body injection moulding process using a soluble core |
| EP0173447A3 (en) * | 1984-07-24 | 1988-02-03 | Clarks Limited | Hollow body injection moulding process using a soluble core |
| EP0718085A1 (en) * | 1994-12-21 | 1996-06-26 | MAGNETI MARELLI S.p.A. | Process for the manufacture of hollow bodies of plastics material and installation which implements the process |
| CN104416693A (en) * | 2013-08-26 | 2015-03-18 | 黄建源 | Production mould of pipeline cleaning head |
| CN104416693B (en) * | 2013-08-26 | 2017-04-12 | 黄建源 | Production mould of pipeline cleaning head |
| CN111089766A (en) * | 2019-12-11 | 2020-05-01 | 重庆大学 | Random closed cavity manufacturing equipment and method based on soluble cavity salt block |
| CN111089766B (en) * | 2019-12-11 | 2023-03-10 | 重庆大学 | Random closed cavity manufacturing equipment and method based on soluble cavity salt block |
| WO2024040631A1 (en) * | 2022-08-24 | 2024-02-29 | 禾材高科(苏州)有限公司 | Preparation method for inner-container-free high-pressure gas storage tank |
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