GB975475A - Improvements in and relating to the moulding of articles from granulated materials - Google Patents
Improvements in and relating to the moulding of articles from granulated materialsInfo
- Publication number
- GB975475A GB975475A GB3793962A GB3793962A GB975475A GB 975475 A GB975475 A GB 975475A GB 3793962 A GB3793962 A GB 3793962A GB 3793962 A GB3793962 A GB 3793962A GB 975475 A GB975475 A GB 975475A
- Authority
- GB
- United Kingdom
- Prior art keywords
- die
- moulding
- carrier
- sand
- diaphragm
- 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
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/28—Compacting by different means acting simultaneously or successively, e.g. preliminary blowing and finally pressing
Abstract
975,475. Moulding granular plastic material. BAKER PERKINS Ltd. Nov. 1, 1963 [Oct. 8, 1962], No. 37939/62. Heading B5A. [Also in Division B3] In a moulding process, particularly for CO 2 hardened moulds and cores, the moulding material is blown into contact with die means and simultaneously compressed by a perforated flexible diaphragm a surface of which contacts the moulding material and pressurized fluid acting on the opposite surface of said diaphragm and through its perforations. A sand carrier 4 is reciprocable on rails 17 by cylinders 14, 15 between a position above the die 20. In the latter position the sand carrier may be clamped between a pressure chamber 6 and the die by a cylinder 7 and pressure air admitted from the chamber 6 through a valve 12 to the rear of the perforated diaphragm 13 to blow the sand from the carrier 4 into the die and simultaneously compress it. The two-part die 20 comprises a part 20b movable by toggle means 22 and cylinder 21, and is heated by electric heater plates 24. The rails 17 above the die are spring- mounted for effective sealing of the carrier to the die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3793962A GB975475A (en) | 1962-10-08 | 1962-10-08 | Improvements in and relating to the moulding of articles from granulated materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3793962A GB975475A (en) | 1962-10-08 | 1962-10-08 | Improvements in and relating to the moulding of articles from granulated materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB975475A true GB975475A (en) | 1964-11-18 |
Family
ID=10400080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3793962A Expired GB975475A (en) | 1962-10-08 | 1962-10-08 | Improvements in and relating to the moulding of articles from granulated materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB975475A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3807483A (en) * | 1971-01-08 | 1974-04-30 | E Buhler | Methods and apparatus for producing sand molds |
| US3983923A (en) * | 1974-04-12 | 1976-10-05 | Giovan Battista Albenga | Sand blowing head |
| EP0650788A1 (en) * | 1993-10-29 | 1995-05-03 | Georg Fischer Giessereianlagen AG | Apparatus for compacting powdery materials |
-
1962
- 1962-10-08 GB GB3793962A patent/GB975475A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3807483A (en) * | 1971-01-08 | 1974-04-30 | E Buhler | Methods and apparatus for producing sand molds |
| US3983923A (en) * | 1974-04-12 | 1976-10-05 | Giovan Battista Albenga | Sand blowing head |
| EP0650788A1 (en) * | 1993-10-29 | 1995-05-03 | Georg Fischer Giessereianlagen AG | Apparatus for compacting powdery materials |
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