DE356681C - Process for preventing rust formation on iron parts - Google Patents
Process for preventing rust formation on iron partsInfo
- Publication number
- DE356681C DE356681C DEE23005D DEE0023005D DE356681C DE 356681 C DE356681 C DE 356681C DE E23005 D DEE23005 D DE E23005D DE E0023005 D DEE0023005 D DE E0023005D DE 356681 C DE356681 C DE 356681C
- Authority
- DE
- Germany
- Prior art keywords
- iron parts
- rust formation
- preventing rust
- iron
- prevent
- 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
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/68—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous solutions with pH between 6 and 8
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
Verfahren zur Verhinderung von Rostbildung auf Eisenteilen. Das Anrosten von eisernen Gegenständen konnte bisher nur durch einen Schutzanstrich verhindert werden, durch welchen die Eisenteile mit einem dauernden und zumeist ziemlich dicken Überzuge versehen wurden. Ein Mittel, um unbearbeitete, in Arbeit befindliche oder bearbeitete Eisenteile vorübergehend oder auf einige Zeit, z. B. während des Transports oder längerer Lagerung, vor dem Rosten zu` schützen und vor allem nicht mit einem Anstrich versehene Eisenteile bei längerem Lagern in Wasser oder wäBrigen Lösungen aufzubewahren (z. B. chirurgische Instrumente), ohne daB die Oberfläche verändert oder angegriffen wurde, gab es bisher nicht. Es ist zwar bekannt, daB kaustische Alkalien oder Ammoniak die Rostbildung verhindern können, diese Wirkung wird jedoch aufgehoben, sobald durch Verminderung der Kaustizität, z. B. durch Kohlensäureanziehung aus der Luft oder durch Verdunstung des gasförmigen Ammoniaks, eine wesentliche Verringerung der Konzentration des wirksamen Agens eintritt.Process to prevent rust formation on iron parts. The rusting Iron objects could only be prevented by a protective coating so far through which the iron parts with a permanent and mostly quite thick Coatings were provided. A means of getting unedited, work in progress, or machined iron parts temporarily or for some time, e.g. B. during transport or longer storage, to protect from rusting and especially not with a Painted iron parts after prolonged storage in water or aqueous solutions (e.g. surgical instruments) without changing the surface or was attacked, has not yet existed. It is known that caustic Alkalis or ammonia can prevent rust from forming, but this effect will canceled as soon as the causticity is reduced, e.g. B. by carbonic acid attraction from the air or through evaporation of the gaseous ammonia, an essential one Reduction in the concentration of the active agent occurs.
Es ist auch schon versucht worden, die Rostbildung auf Eisenteilen durch Aufbringung einer Lösung von Ferro- oder Ferrocyanwasserstoffsäure zu verhindern; doch ist die Rostschutzwirkung dieser Lösung eine sehr geringe, und es wurde bei der Nachprüfung festgestellt, daB mit einer zoprozentigen Lösung- von Ferrocyanwasserstoffsäure behandelte Stahlbleche nach viel Wochen vollkommen zerfressen und zerfallen waren. Abgesehen davon stehen die zur Ausführung dieses Verfahrens benötigten Chemikalien nur zu relativ hohen Preisen und in beschränkten Mengen zur Verfügung, so daB das Verfahren niemals technische Bedeutung hat erlangen können.Attempts have also been made to prevent rust from forming on iron parts prevent by applying a solution of ferro- or ferrocyanic acid; however, the anti-rust effect of this solution is very poor, and it was at The examination found that with a 10% solution of ferrocyanic acid treated steel sheets were completely eaten away and disintegrated after many weeks. Apart from that, there are the chemicals needed to carry out this procedure only available at relatively high prices and in limited quantities, so that Process has never been able to acquire technical importance.
Ich habe nun gefunden, daB eiserne Gegenstände auf kurze Zeit oder auch dauernd vor Rostbildung geschützt werden können, wenn man sie mit einer Lösung von neutralen anorganischen oder organischen Salzen der Phosphorsäure behandelt oder sie in solche Lösungen hineinlegt. Im allgemeinen genügt ein Befeuchten der Eisengegenstände mit einer etwa zo prozentigen Lösung eines Neütralsalzes der dreibasischen Phosphorsäure, um jede Rostbildung selbst bei Aufbewahrung in feuchten Räumen zu verhindern, ein Umstand, der beispielsweise für die Lagerung von Roheisen oder von Halbfabrikaten vor der Fertigstellung und für den Versand von Fertigfabrikaten, insbesondere auch für den Versand und für die Lagerung von Munition, von Wichtigkeit ist, da die Ausführung dieses Verfahrens sehr einfach und billig ist, durch Eintauchen, Übergießen oder Besprengen ausgeführt werden kann, fast keinerlei Handarbeit, vor allem keinen Pinselauftrag erfordert und die Gegenstände nicht mit einem Schutz- oder Lack-Überzuge umkleidet; der bei der Weiterverarbeitung wieder entfernt werden muBte oder - wie beispielsweise bei Munition - durch VolumvergröBerung hinderlich sein könnte.I have now found that iron objects for a short time or can also be permanently protected against rust formation if you use a solution treated with neutral inorganic or organic salts of phosphoric acid or place them in such solutions. In general, it is sufficient to moisten the Iron objects with about ten percent solution of a neutralsalt of the tribasic Phosphoric acid to prevent any rust formation even when stored in damp rooms prevent a circumstance which, for example, for the storage of pig iron or of Semi-finished products before completion and for the dispatch of finished products, especially important for the shipping and storage of ammunition is, since this procedure is very simple and cheap to carry out, by immersion, Pouring over or sprinkling can be carried out, almost no manual work especially does not require a brush application and the objects are not covered with a protective or varnish covers; which are removed again during further processing had to or - as for example with ammunition - a hindrance due to the increase in volume could be.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE23005D DE356681C (en) | 1918-03-08 | 1918-03-08 | Process for preventing rust formation on iron parts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE23005D DE356681C (en) | 1918-03-08 | 1918-03-08 | Process for preventing rust formation on iron parts |
Publications (1)
Publication Number | Publication Date |
---|---|
DE356681C true DE356681C (en) | 1922-10-24 |
Family
ID=7070952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEE23005D Expired DE356681C (en) | 1918-03-08 | 1918-03-08 | Process for preventing rust formation on iron parts |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE356681C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE872100C (en) * | 1942-03-21 | 1953-03-30 | Henkel & Cie Gmbh | Drilling emulsions |
US5242366A (en) * | 1989-07-07 | 1993-09-07 | Asahi Kogaku Kogyo Kabushiki Kaisha | Mechanism for folding continuous-form sheet |
-
1918
- 1918-03-08 DE DEE23005D patent/DE356681C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE872100C (en) * | 1942-03-21 | 1953-03-30 | Henkel & Cie Gmbh | Drilling emulsions |
US5242366A (en) * | 1989-07-07 | 1993-09-07 | Asahi Kogaku Kogyo Kabushiki Kaisha | Mechanism for folding continuous-form sheet |
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