BG51442A3 - Method for metal articles injection moulding using a meltible foam model - Google Patents
Method for metal articles injection moulding using a meltible foam modelInfo
- Publication number
- BG51442A3 BG51442A3 BG092831A BG9283190A BG51442A3 BG 51442 A3 BG51442 A3 BG 51442A3 BG 092831 A BG092831 A BG 092831A BG 9283190 A BG9283190 A BG 9283190A BG 51442 A3 BG51442 A3 BG 51442A3
- Authority
- BG
- Bulgaria
- Prior art keywords
- pressure
- meltible
- injection moulding
- sub
- metal articles
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title abstract 4
- 229910052751 metal Inorganic materials 0.000 title abstract 2
- 239000002184 metal Substances 0.000 title abstract 2
- 239000006260 foam Substances 0.000 title 1
- 238000001746 injection moulding Methods 0.000 title 1
- 238000005266 casting Methods 0.000 abstract 3
- 229910000838 Al alloy Inorganic materials 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 230000001133 acceleration Effects 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 238000002425 crystallisation Methods 0.000 abstract 1
- 230000007423 decrease Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
Landscapes
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
The method is applicable in foundry engineering for the production of aluminium alloy castings. The castings, produced following this method, do not contain gas pits on the surface or any carbon inclusions. Their density is improved. The method applies incremental isostatic pressure on the mould after burning the fusible model, the acceleration rate being such that it creates a sub-pressure on the interfacial surface between the metal melt and the moulding mixture. The sub-pressure reaches a value determined by two limit figures and then it decreases, while the applied pressure increases up to a maximum value, where it is maintained until complete crystallisation of the produced casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BG092831A BG51442A3 (en) | 1990-09-12 | 1990-09-12 | Method for metal articles injection moulding using a meltible foam model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BG092831A BG51442A3 (en) | 1990-09-12 | 1990-09-12 | Method for metal articles injection moulding using a meltible foam model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BG51442A3 true BG51442A3 (en) | 1993-05-14 |
Family
ID=3923241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BG092831A Active BG51442A3 (en) | 1990-09-12 | 1990-09-12 | Method for metal articles injection moulding using a meltible foam model |
Country Status (1)
| Country | Link |
|---|---|
| BG (1) | BG51442A3 (en) |
-
1990
- 1990-09-12 BG BG092831A patent/BG51442A3/en active Active
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