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DE921730C - Pressurized gas cylinder filled with luminous gas and process for its manufacture - Google Patents

Pressurized gas cylinder filled with luminous gas and process for its manufacture

Info

Publication number
DE921730C
DE921730C DEM4098D DEM0004098D DE921730C DE 921730 C DE921730 C DE 921730C DE M4098 D DEM4098 D DE M4098D DE M0004098 D DEM0004098 D DE M0004098D DE 921730 C DE921730 C DE 921730C
Authority
DE
Germany
Prior art keywords
gas cylinder
pressurized gas
sulfur
gas
manufacture
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
Application number
DEM4098D
Other languages
German (de)
Inventor
Hans Stoffels
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vodafone GmbH
Original Assignee
Mannesmann AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mannesmann AG filed Critical Mannesmann AG
Priority to DEM4098D priority Critical patent/DE921730C/en
Application granted granted Critical
Publication of DE921730C publication Critical patent/DE921730C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23FNON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/02Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in air or gases by adding vapour phase inhibitors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Description

Mit Leuchtgas gefüllte Druckgasflasche und Verfahren zu ihrer Herstellung Es ist bekannt, daß in Werkstücken aus Eisen und Stahl, wenn sie unter statischer Beanspruchung stehen und gewissen korrodierenden Einflüssen ausgesetzt sind, transkristalline Risse entstehen, die ein schnelles Zubruchgehen des so beanspruchten Werkstückes zur Folge haben. Eine Abhilfe gegen diese Werkstoffzerstörungen ist von großer praktischer Bedeutung besonders im Hinblick auf den Zerknall von Druckflaschen, die als Treibgas für Explosionsmotoren Leuchtgas enthalten. Es konnte nachgewiesen werden, daß hier die transkristalline Korrosion durch die Anwesenheit von geringen Mengen Blausäure bei gleichzeitiger Gegenwart von Feuchtigkeit im Gas hervorgerufen wird. Es sind bereits mehrere Schutzmaßnahmen gegen diese äußerst schädliche Korrosion bekanntgeworden. So wurde vorgeschlagen, entweder das Gas vor dem Einfüllen in die Flaschen vollständig von Blausäure oder Feuchtigkeit zu befreien oder aber das Innere der Flaschen durch Überzüge zu schützen. Es wurde auch versucht, die Korrosion von der Innenseite der Flaschen fernzuhalten, indem Eisen mit einer möglichst großen Oberfläche, z. B. in Form von Spänen od. dgl., in die Flaschen eingebracht wurde.Pressurized gas cylinder filled with luminous gas and process for its manufacture It is known that in workpieces made of iron and steel when under static Steady stress and are exposed to certain corrosive influences, transcrystalline Cracks arise, which cause the stressed workpiece to break open quickly have as a consequence. A remedy against this material destruction is of great practicality Significance especially with regard to the cracking of pressure bottles, which are used as propellants Contains illuminating gas for explosion engines. It could be proven that here the transcrystalline corrosion due to the presence of small amounts of hydrocyanic acid caused by the simultaneous presence of moisture in the gas. There are Several protective measures against this extremely harmful corrosion have already become known. So it has been suggested to either completely remove the gas before filling it into the bottles to free from hydrogen cyanide or moisture or through the inside of the bottles Protect coatings. Attempts have also been made to reduce the corrosion from the inside of the Keep bottles away by using iron with as large a surface as possible, e.g. B. in the form of chips or the like. Was introduced into the bottles.

Die bekannten Maßnahmen haben sich aber nicht restlos bewährt. So erfordert die Reinigung des Gases von Blausäure oder Feuchtigkeit umfangreiche und dementsprechend kostspielige Einrichtungen. Weiterhin ist die Wirksamkeit der bis jetzt verwendeten Überzüge unzureichend und nicht genügend kontrollierbar. Schließlich birgt die Verwendung von Eisenspänen in den Flaschen die Gefahr in sich, daß Späne- oder Rostteilchen mit dem Gas in die Motoren gelangen und deren sicheren Betrieb gefährden.However, the known measures have not completely proven themselves. So requires extensive cleaning of the gas from hydrogen cyanide or moisture and accordingly expensive facilities. Furthermore, the effectiveness of the bis coatings now used inadequately and not sufficiently controllable. In the end the use of iron filings in the bottles harbors the risk that swarf or rust particles get into the engines with the gas and their safe operation endanger.

Es wurde nun gemäß der Erfindung überraschenderweise festgestellt, daß diese transkristalline Korrosion nicht auftritt, wenn die mit Leuchtgas gefüllte Druckgasflasche eine mit Schwefel oder Schwefelverbindungen angereicherte Oberfläche aufweist. Die Herstellung einer solchen Druckgasflasche kann in der Weise erfolgen, daß ihre Innenfläche mit einem mit Schwefel oder mit in Wasser unlöslichen Schwefelverbindungen pigmentierten Lack überzogen wird. Die Herstellung kann aber auch dadurch erfolgen, daß Schwefel oder Schwefelverbindungen in das Innere der Druckgasflasche eingebracht werden. Für die Wirkung ist es gleichgültig, ob elementarer Schwefel oder Schwefel-Eisen in Pulverform oder gelöstes Natriumsulfid oder Kalium-Xanthogenat verwendet wird.It has now surprisingly been found according to the invention that this transcrystalline corrosion does not occur when the filled with luminous gas Pressurized gas cylinder has a surface enriched with sulfur or sulfur compounds having. Such a pressurized gas cylinder can be produced in such a way that that their inner surface is covered with a sulfur compound or with a sulfur compound that is insoluble in water pigmented varnish is coated. The production can also be done by that sulfur or sulfur compounds introduced into the interior of the pressurized gas cylinder will. For the effect it does not matter whether elemental sulfur or sulfur-iron in powder form or dissolved sodium sulfide or potassium xanthate is used.

Claims (1)

PATENTANSPRÜCHE: i. Mit Leuchtgas gefüllte Druckgasflasche, gekennzeichnet durch eine mit Schwefel oder Schwefelverbindungen angereicherte Oberfläche. a. Verfahren zur Herstellung einer Druckgasflasche nach Anspruch i, dadurch gekennzeichnet, daß ihre Innenfläche mit einem mit Schwefel oder mit in Wasser unlöslichen Schwefelverbindungen pigmentierten Lack überzogen wird. 3. Verfahren zur Herstellung einer Druckgasflasche nach Anspruch i, dadurch gekennzeichnet, daß Schwefel oder Schwefelverbindungen in das Innere der Druckgasflasche eingebracht werden.PATENT CLAIMS: i. Pressurized gas cylinder filled with luminous gas, marked by a surface enriched with sulfur or sulfur compounds. a. procedure for producing a pressurized gas cylinder according to claim i, characterized in that their inner surface with one with sulfur or with water-insoluble sulfur compounds pigmented varnish is coated. 3. Method of manufacturing a pressurized gas cylinder according to claim i, characterized in that sulfur or sulfur compounds be introduced into the interior of the pressurized gas cylinder.
DEM4098D 1942-01-25 1942-01-25 Pressurized gas cylinder filled with luminous gas and process for its manufacture Expired DE921730C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM4098D DE921730C (en) 1942-01-25 1942-01-25 Pressurized gas cylinder filled with luminous gas and process for its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM4098D DE921730C (en) 1942-01-25 1942-01-25 Pressurized gas cylinder filled with luminous gas and process for its manufacture

Publications (1)

Publication Number Publication Date
DE921730C true DE921730C (en) 1954-12-23

Family

ID=7292513

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM4098D Expired DE921730C (en) 1942-01-25 1942-01-25 Pressurized gas cylinder filled with luminous gas and process for its manufacture

Country Status (1)

Country Link
DE (1) DE921730C (en)

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