DE152188C - - Google Patents
Info
- Publication number
- DE152188C DE152188C DENDAT152188D DE152188DA DE152188C DE 152188 C DE152188 C DE 152188C DE NDAT152188 D DENDAT152188 D DE NDAT152188D DE 152188D A DE152188D A DE 152188DA DE 152188 C DE152188 C DE 152188C
- Authority
- DE
- Germany
- Prior art keywords
- iron
- water
- cast iron
- cooling
- toughness
- 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
- 229910001018 Cast iron Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims 1
- 238000006011 modification reaction Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- 238000001816 cooling Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
KLASSEGREAT
Bei dem durch das Patent 113597 geschützten Verfahren wird geschmolzenes Gußeisen aus einem Kupolofen, in kleine Partikel zerteilt, zur intensiven Abkühlung unmittelbar dem Wasser zugeführt. Um jedoch eine weniger intensive Abkühlung zu ermöglichen,. wendet man die bekannten Koquillen an, welchen aus einem Tiegel das flüssige Eisen zugeführt wird. Hierdurch wird erreicht, daß durch weniger rasche Abkühlung die Sprödigkeit des Eisens abnimmt. Um dem Gußeisen eine größere Zähigkeit zu geben, werden dem Eisen noch hierzu geeignete Zusätze hinzugefügt, die im Tiegel mit dem Eisen durch Umrühren vermengt werden. Die leicht verbrennbaren Zusätze dem Kupolofen unmittelbar zuzuführen, ist unangängig, ebenso ginge die durch solche Zusätze erzielte erhöhte Zähigkeit durch unmittelbares rasches Abkühlen in Wasser verloren. Bei Benutzung von Koquillen ist man in der Lage, die Abkühlung mit oder ohne Wasser je nach Bedarf äußerlich regeln zu können, um große Härtung, verbunden mit Zähigkeit, zu erzielen. Selbstverständlich müssen die Koquillen möglichst flach gewählt werden, so daß das erkaltete Eisen dünne Platten bildet, um eine durchgehende Härtung zu erreichen und um die nachherige Zerkleinerung zu Korn und Pulver zu erleichtern, welche andernfalls schwierig wäre, wenn die Platten zu stark ausfielen.The one protected by patent 113597 In the process, molten cast iron from a cupola furnace is broken up into small particles for immediate cooling fed to the water. However, in order to allow a less intensive cooling. one uses the well-known coquilles, which from a crucible the liquid iron is fed. This means that less rapid cooling reduces the brittleness of the iron. To that To give cast iron greater toughness, suitable additives are added to the iron added, which are mixed in the crucible with the iron by stirring. The easily combustible additives to the cupola Adding it directly is unacceptable, as would the one achieved by such additions increased toughness lost by immediate rapid cooling in water. When using Koquillen one is in the Able to regulate the cooling externally with or without water as required, to achieve great hardening combined with toughness. Of course they have to Coquillen should be chosen as flat as possible so that the cooled iron forms thin plates, to achieve a continuous hardening and to reduce the subsequent size reduction To facilitate grain and powder, which would otherwise be difficult if the plates were too turned out to be strong.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE152188C true DE152188C (en) |
Family
ID=418942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT152188D Active DE152188C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE152188C (en) |
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0
- DE DENDAT152188D patent/DE152188C/de active Active
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