DE407017C - Acid-resistant alloy - Google Patents

Acid-resistant alloy

Info

Publication number
DE407017C
DE407017C DED45519D DED0045519D DE407017C DE 407017 C DE407017 C DE 407017C DE D45519 D DED45519 D DE D45519D DE D0045519 D DED0045519 D DE D0045519D DE 407017 C DE407017 C DE 407017C
Authority
DE
Germany
Prior art keywords
acid
cobalt
resistant alloy
percent
silicon
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
DED45519D
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.)
FRITZ DOEBLIN
Original Assignee
FRITZ DOEBLIN
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 FRITZ DOEBLIN filed Critical FRITZ DOEBLIN
Priority to DED45519D priority Critical patent/DE407017C/en
Application granted granted Critical
Publication of DE407017C publication Critical patent/DE407017C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/07—Alloys based on nickel or cobalt based on cobalt

Description

Säurebeständige Legierung. Zusatz zum Patent 387398*). In der Patentschrift 387398 wurde eine säurebeständige Legierung beschrieben, bestehend aus Kobalt und nicht unter 32 Gewichtsprozent Silizium. Es hat sich nun ergeben, daß sich die Festigkeiten dieser Legierungsreihen noch beträchtlich erhöhen lassen, ohne ihre gegen oxydierend und reduzierend wirkende Säuren bestehende Widerstandsfähigkeit herabzumindern, wenn ein Teil des Kobalts durch Wolfram, Vanadium, Molybdän, Titan oder Chrom ersetzt wird, und zwar genügen schon geringe Mengen dieser Metalle, um die Festigkeitserhöhung hervorzurufen. Auch können mehrere der genannten Metalle gleichzeitig zulegiert werden. Die Wirkung tritt ferner auch auf, wenn etwa statt reinem Silizium hochprozentiges Ferrosilizium in handelsüblicher Form angewandt wird, wie in der Patentschrift 389189 beschrieben ist, oder statt reinem Kobalt handelsübliche Ware mit geringem Nickelgehalt. Besondere Vorteile bieten noch die Legierungen mit etwa 32 bis 49 Gewichtsprozent Silizium und entsprechend etwa 51 bis 68 Gewichtsprozent Kobalt, da bei diesen Legierungen die exotherme Reaktion bei Bildung der Verbindung Co Si durch ihre plötzliche starke Temperatursteigerung die Aufnahme der genannten Zusatzmetalle in die Legierung sehr erleichtert.Acid-resistant alloy. Addition to patent 387398 *). In the patent specification 387398 describes an acid-resistant alloy consisting of cobalt and not less than 32 percent by weight silicon. It has now been found that the strengths these alloy series can still be increased considerably without their anti-oxidizing properties and reducing acids to reduce existing resistance, when part of the cobalt is replaced by tungsten, vanadium, molybdenum, titanium or chromium is, and even small amounts of these metals are sufficient to increase the strength to evoke. Several of the metals mentioned can also be alloyed at the same time will. The effect also occurs if, for example, instead of pure silicon, high-percentage Ferrosilicon is used in commercial form, as in patent 389189 or, instead of pure cobalt, commercially available goods with a low nickel content. The alloys with about 32 to 49 percent by weight also offer particular advantages Silicon and correspondingly about 51 to 68 percent by weight cobalt, as in these alloys the exothermic reaction in the formation of the compound Co Si due to its sudden strength Increase in temperature the absorption of the mentioned additional metals in the alloy very much relieved.

Claims (2)

PATENTANSPRÜCHE: i. Säurebeständige Kobalt-Silizium-Legierung nach Patent 387398 finit nicht unter 32 Gewichtsprozent Silizium, dadurch gekennzeichnet, daß ein Teil des Kobalts durch Wolfram, Vanadium, Molybdän, Titan oder Chromersetzt wird. PATENT CLAIMS: i. Acid-resistant cobalt-silicon alloy according to Patent 387398 finite not less than 32 percent by weight silicon, characterized that part of the cobalt is replaced by tungsten, vanadium, molybdenum, titanium or chromium will. 2. Säurebeständige Kobalt-Silizium-Legierung nach Anspruch i, dadurch gekennzeichnet, daß bis zu i o Gewichtsprozent des Kobalts durch die Zusatzmetalle Wolfram, Vanadium, Molybdän, Titan oder Chrom einzeln oder durch mehrere gemeinsam ersetzt werden. *) Früheres Zusatzpatent 389i89.2. Acid-resistant cobalt-silicon alloy according to claim i, characterized in that that up to i o weight percent of the cobalt by the additional metals tungsten, vanadium, Molybdenum, titanium or chromium can be replaced individually or by several together. *) Former additional patent 389i89.
DED45519D 1924-05-16 1924-05-16 Acid-resistant alloy Expired DE407017C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED45519D DE407017C (en) 1924-05-16 1924-05-16 Acid-resistant alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED45519D DE407017C (en) 1924-05-16 1924-05-16 Acid-resistant alloy

Publications (1)

Publication Number Publication Date
DE407017C true DE407017C (en) 1924-12-03

Family

ID=7049066

Family Applications (1)

Application Number Title Priority Date Filing Date
DED45519D Expired DE407017C (en) 1924-05-16 1924-05-16 Acid-resistant alloy

Country Status (1)

Country Link
DE (1) DE407017C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180012A (en) * 1963-07-12 1965-04-27 Du Pont Cobalt alloys

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180012A (en) * 1963-07-12 1965-04-27 Du Pont Cobalt alloys

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