AT96533B - Procedure for repairing defective cast. - Google Patents
Procedure for repairing defective cast.Info
- Publication number
- AT96533B AT96533B AT96533DA AT96533B AT 96533 B AT96533 B AT 96533B AT 96533D A AT96533D A AT 96533DA AT 96533 B AT96533 B AT 96533B
- Authority
- AT
- Austria
- Prior art keywords
- procedure
- repairing defective
- defective cast
- cavities
- cast
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 7
- 230000002950 deficient Effects 0.000 title description 2
- 238000005266 casting Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Ausbesserung fehlerhaften Busses.
Die Erfindung betrifft ein Verfahren zur Ausbesserung fehlerhafter Gussstucke, um den bisher ausserordentlich grossen Verlust an Guss durch Bildung von Poren und sonstigen Höhlungen zu ver- meiden. Insbesondere soll sich das Verfahren auf den Guss von Maschinenzylindern beziehen.
Zweck der Erfindung ist ein Verfahren zum Ausfüllen der Gusshöhlungen zu liefern, bei dem der
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und mit Säure und Flussmitteln behandelt wurden, erfindungsgemäss mit dem Füllmaterial in kaltem Zustande ausgefüllt werden, worauf die Füllung örtlich bis zum Schmelzfluss erhitzt und während des Erhitzens und im schmelzflüssigen Zustande einer Press- und Reibewirkung unterworfen wird.
Hiebei kommt als Füllmaterial nur ein solches in Betracht, das, wenn es in geeigneter Weise zur Anwendung kommt, sich dem Guss fest einverleibt, so dass dieser irgendeinem praktisch vorkommenden Heizgrad ausgesetzt werden kann, ohne dass die Füllung im Gebrauch dadurch beschädigt oder abge-
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Bei Anwendung des Verfahrens gemäss der Erfindung wird folgendermassen verfahren : Wenn sich der Guss als fehlerhaft erweist, indem er eine oder mehrere Höhlungen oder Poren enthält, so müssen diese Höhlungen oder Poren zunächst griindlich von der äusseren metallischen Kruste und jedem anderen Fremdstoff, der darin eingeschlossen sein könnte, befreit werden. Zu diesem Zweck wird die Benutzung eines . Meissels oder Aufreibers vorgeschlagen, u. zw. vorzugsweise eines solchen mit mechanischem Antrieb.
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der Arbeit nötigen Winkel zu ermöglichen. Die Wandungen der Höhlungen oder Poren werden nun mit einer geeigneten Säure, wie z. B.
Salzsäure und mit Salmiak vermischtes Zink, behandelt, um alle Oxydverbindungen zu zerstören und auf diese Weise das Anhaften der anzubringenden metallischen
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**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Procedure for repairing faulty buses.
The invention relates to a method for repairing defective cast pieces in order to avoid the previously extremely large loss of cast due to the formation of pores and other cavities. In particular, the method should relate to the casting of machine cylinders.
The purpose of the invention is to provide a method for filling the casting cavities in which the
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and have been treated with acid and flux, according to the invention are filled with the filling material in the cold state, whereupon the filling is locally heated up to the melt flow and subjected to a pressing and rubbing effect during the heating and in the molten state.
The only filling material to be considered here is one that, if used in a suitable manner, is firmly incorporated into the casting so that it can be exposed to any practically occurring degree of heating without the filling being damaged or worn off during use.
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When using the method according to the invention, the following procedure is followed: If the casting proves to be faulty in that it contains one or more cavities or pores, these cavities or pores must first be thoroughly removed from the outer metallic crust and any other foreign matter that is trapped therein could be liberated. For this purpose, the use of a. Chisels or Aufreibers suggested u. between. Preferably one with a mechanical drive.
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to allow the necessary angles for the work. The walls of the cavities or pores are now treated with a suitable acid, such as. B.
Hydrochloric acid and zinc mixed with ammonia, treated to destroy all oxide compounds and thus the adhesion of the metallic ones to be applied
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** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US96533XA | 1917-03-06 | 1917-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT96533B true AT96533B (en) | 1924-04-10 |
Family
ID=21738954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT96533D AT96533B (en) | 1917-03-06 | 1920-07-10 | Procedure for repairing defective cast. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT96533B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0286916A3 (en) * | 1987-04-14 | 1989-07-19 | Georg Fischer Aktiengesellschaft | Method for compaction of inside blowholes of castings |
-
1920
- 1920-07-10 AT AT96533D patent/AT96533B/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0286916A3 (en) * | 1987-04-14 | 1989-07-19 | Georg Fischer Aktiengesellschaft | Method for compaction of inside blowholes of castings |
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