GB821611A - Improvements in or relating to methods of making shell moulds - Google Patents
Improvements in or relating to methods of making shell mouldsInfo
- Publication number
- GB821611A GB821611A GB534955A GB534955A GB821611A GB 821611 A GB821611 A GB 821611A GB 534955 A GB534955 A GB 534955A GB 534955 A GB534955 A GB 534955A GB 821611 A GB821611 A GB 821611A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mould
- pattern
- pattern part
- heated
- parts
- 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
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C23/00—Tools; Devices not mentioned before for moulding
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)
- Casting Devices For Molds (AREA)
Abstract
821,611. Moulding processes. POLYGRAM CASTING CO. Ltd. Feb. 17, 1956 [Feb. 22, 1955], No. 5349/55. Drawings to Specification. Class 83 (1). Shell moulds are made by injecting the moulding mixture into the cavity between a first heated pattern part which defines the working face of the mould, and a second pattern part which defines the back of the mould and which is separated from the first pattern part by a rim round the edge of the cavity, the height of the rim corresponding to the thickness of the mould required, the second pattern part being apertured to permit said injection. In an embodiment a perforated pattern part which shapes the back of the mould is fitted to the perforated bottom of a bin containing the mould mix. Heated complementary pattern parts are then fed in succession e.g. by a turntable, and held in engagement with the first said pattern part and mix is blown from the bin into the cavity defined by the pattern parts. The heated pattern part with the adherent mould is then removed to an oven for further curing. Rams or clamping devices may be used for holding the pattern parts together. In a modification all parts of the pattern are heated. They may be provided with heating means. Specifications 674,422, 795,441, 798,161 and 803,612 are referred to.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB534955A GB821611A (en) | 1955-02-22 | 1955-02-22 | Improvements in or relating to methods of making shell moulds |
| DE1956C0012581 DE1178555B (en) | 1955-02-22 | 1956-02-21 | Process for the production of molded masks for foundry purposes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB534955A GB821611A (en) | 1955-02-22 | 1955-02-22 | Improvements in or relating to methods of making shell moulds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB821611A true GB821611A (en) | 1959-10-14 |
Family
ID=9794434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB534955A Expired GB821611A (en) | 1955-02-22 | 1955-02-22 | Improvements in or relating to methods of making shell moulds |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1178555B (en) |
| GB (1) | GB821611A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2929397C2 (en) * | 1979-07-20 | 1985-08-08 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Method for separating a refractory molded mask from a foundry pattern |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH207107A (en) * | 1937-12-02 | 1939-09-30 | Croning Johannes | Process for the production of casting molds and apparatus for carrying out the process. |
-
1955
- 1955-02-22 GB GB534955A patent/GB821611A/en not_active Expired
-
1956
- 1956-02-21 DE DE1956C0012581 patent/DE1178555B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1178555B (en) | 1964-09-24 |
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