DE373234C - Process for the production of insulating vessels with a copper coating - Google Patents

Process for the production of insulating vessels with a copper coating

Info

Publication number
DE373234C
DE373234C DEC29717D DEC0029717D DE373234C DE 373234 C DE373234 C DE 373234C DE C29717 D DEC29717 D DE C29717D DE C0029717 D DEC0029717 D DE C0029717D DE 373234 C DE373234 C DE 373234C
Authority
DE
Germany
Prior art keywords
production
copper coating
copper
insulating vessels
vessels
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
DEC29717D
Other languages
German (de)
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.)
CHEMISCHE WERKE VORM AUERGESEL
Original Assignee
CHEMISCHE WERKE VORM AUERGESEL
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 CHEMISCHE WERKE VORM AUERGESEL filed Critical CHEMISCHE WERKE VORM AUERGESEL
Priority to DEC29717D priority Critical patent/DE373234C/en
Application granted granted Critical
Publication of DE373234C publication Critical patent/DE373234C/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J41/00—Thermally-insulated vessels, e.g. flasks, jugs, jars
    • A47J41/02—Vacuum-jacket vessels, e.g. vacuum bottles
    • A47J41/022—Constructional details of the elements forming vacuum space
    • A47J41/024—Constructional details of the elements forming vacuum space made of glass

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Thermally Insulated Containers For Foods (AREA)

Description

Verfahren zur Herstellung von Isoliergefäßen mit Kupferbelag. Bei der Herstellung von Isolierflaschen mit Kupferbelag ergibt sich eine Schwierigkeit daraus, daß der Kupferbelag infolge Oxydation teilweise in Kupferoxyd übergeht und die so hergestellten Flaschen minderwertig sind. Wie sich herausgestellt hat, tritt die Oxydbildung namentlich dann ein, wenn die Flaschen feucht längere Zeit der Einwirkung von Luft ausgesetzt sind. Wenn man die Oxydation des Kupfers nicht vermeidet, muß man bei dem späteren Auspumpen, um blanke Spiegel zu erhalten, den Kupferbelag reduzieren, wobei natürlich Wasserdampf entsteht, der das Auspumpen bis zu einem Hochvakuum wesentlich erschwert.Process for the production of insulating vessels with a copper coating. at The manufacture of vacuum flasks with a copper coating results in a difficulty from the fact that the copper coating partially changes into copper oxide as a result of oxidation and the bottles produced in this way are inferior. As it turns out, occurs Oxide formation occurs especially when the bottles are moist for a longer period of exposure exposed to air. If one does not avoid the oxidation of the copper, one must when pumping out later, in order to obtain shiny mirrors, the copper coating is reduced, whereby water vapor is produced, of course, which causes the pump to be pumped down to a high vacuum made much more difficult.

Diese Nachteile werden erfindungsgemäß dadurch vermieden, daß möglichst bald nach der Verspiegelung und dem Auswaschen die Isoliergefäße einer Vakuumtrocknung bei relativ niederen Temperaturen in einem besonderen Arbeitsgang unterworfen werden. Hierdurch wird es möglich, vor dem Auspumpen die verkupferten Flaschen, ohne daß eine Oxydation der Kupferspiegel eintritt, beliebig lange aufzubewahren. Man erhält beim Auspumpen blanke Kupferspiegel, die entweder gar nicht oder nur einer ganz geringen Reduktion durch Wasserstoff bedürfen, um einen tadellosen Spiegel zu ergeben. Hierdurch wird die Leistungsfähigkeit der Pumpeinrichtung wesentlich erhöht, da die Leistung der Vakuumpumpe nicht durch den in den Isolierflaschen sonst vorhandenen Wasserdampf, der auch bei der Oxydation des Kupferoxyds entsteht, verlangsamt wird.These disadvantages are avoided according to the invention in that as far as possible soon after the mirror coating and washing out, the insulating vessels for vacuum drying be subjected to a special operation at relatively low temperatures. This makes it possible to pump out the copper-plated bottles without an oxidation of the copper level occurs, to be kept for any length of time. You get bare copper mirror when pumping out, either not at all or only one completely require little reduction by hydrogen to give a pristine level. As a result, the performance of the pumping device is significantly increased because the performance of the vacuum pump is not affected by that otherwise present in the vacuum flasks Water vapor, which is also produced when the copper oxide is oxidized, is slowed down.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Isoliergefäßen mit Kupferbelag, dadurch gekennzeichnet, daß die Gefäße möglichst bald nach Erzeugung des Spiegels und vor dem-Auspumpen einer Vakuumtrocknung unterworfen werden. PATENT CLAIM: Process for the production of insulating vessels with a copper coating, characterized in that the vessels are subjected to vacuum drying as soon as possible after the level has been generated and before they are pumped out.
DEC29717D 1920-10-09 1920-10-09 Process for the production of insulating vessels with a copper coating Expired DE373234C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC29717D DE373234C (en) 1920-10-09 1920-10-09 Process for the production of insulating vessels with a copper coating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC29717D DE373234C (en) 1920-10-09 1920-10-09 Process for the production of insulating vessels with a copper coating

Publications (1)

Publication Number Publication Date
DE373234C true DE373234C (en) 1923-04-09

Family

ID=7019075

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC29717D Expired DE373234C (en) 1920-10-09 1920-10-09 Process for the production of insulating vessels with a copper coating

Country Status (1)

Country Link
DE (1) DE373234C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7285719B2 (en) * 2003-04-02 2007-10-23 Solar Suspension Systems, Llc Solar array support methods and systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7285719B2 (en) * 2003-04-02 2007-10-23 Solar Suspension Systems, Llc Solar array support methods and systems

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