DE912508C - Lead-bearing metal - Google Patents

Lead-bearing metal

Info

Publication number
DE912508C
DE912508C DEM3454D DEM0003454D DE912508C DE 912508 C DE912508 C DE 912508C DE M3454 D DEM3454 D DE M3454D DE M0003454 D DEM0003454 D DE M0003454D DE 912508 C DE912508 C DE 912508C
Authority
DE
Germany
Prior art keywords
lead
bearing metal
alloys
cadmium
metals
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
DEM3454D
Other languages
German (de)
Inventor
Dr Oscar Roder
Dr Hans Siegens
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.)
GEA Group AG
Original Assignee
Metallgesellschaft 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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Priority to DEM3454D priority Critical patent/DE912508C/en
Application granted granted Critical
Publication of DE912508C publication Critical patent/DE912508C/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
    • C22C11/00—Alloys based on lead
    • C22C11/02—Alloys based on lead with an alkali or an alkaline earth metal as the next major constituent

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

Bleilagermetall Im Patent 748 254 sind alkali- und erdalkalimetallhaltige Bleilagermetalle beschrieben, die aus 0,6o bis 0,75 °/o, vorzugsweise über 0,7 % Kalzium, mindestens o,2 °/o, vorzugsweise mindestens 0,35°/o Barium und/oder Strontium, und zwar bis zu einer oberen Grenze von o,6 °/o, vorzugsweise bis 0,55 °/o für jedes der beiden Metalle, o,r bis o,25 °/o Natrium, o,oz bis o,2 % Aluminium, Rest Blei bestehen. Die Legierungen können außerdem noch o,oz bis 0,05 % Kalium enthalten.Lead bearing metal In patent 748 254, lead bearing metals containing alkali and alkaline earth metals are described, which are composed of 0.6o to 0.75 %, preferably over 0.7% calcium, at least 0.2%, preferably at least 0.35% Barium and / or strontium, up to an upper limit of 0.6%, preferably up to 0.55% for each of the two metals, 0.25 to 0.25% sodium, 0.0 oz up to 0.2 % aluminum, the remainder lead. The alloys can also contain 0.1 oz to 0.05% potassium.

Diese Legierungen zeichnen sich durch eine hohe Beständigkeit der Härte bei Warmlagerung aus und besitzen eine gegenüber den bekannten alkali- und erdalkalimetallhaltigen Bleilagermetallen besonders gute Umschmelzbarkeit. Sie verlieren auch bei häufigem Umschmelzen nur wenig an Härte.These alloys are characterized by a high level of resistance Hardness from hot storage and have a compared to the known alkaline and Lead bearing metals containing alkaline earth metals are particularly easy to remelt. They are losing only little hardness even with frequent remelting.

Es wurde nun gefunden, daß diese Legierungen durch Zusatz von bis z % Kadmium, vorzugsweise über o,5 °/o Kadmium, an Härte gewinnen und daß auch diese Legierungen mit gesteigerter Härte die gute Umschmelzbarkeit und die geringe Warmenthärtung der Legierungen des Hauptpatents behalten. Die durch Kadmiumzusatz erzielte höhere Härte ist gegen längeres Erwärmen und auch gegen häufigeres Umschmelzen beständig. Auch die Korrosionsfestigkeit der Legierung wird durch den Kadmiumzusatz nicht ungünstig beeinflußt.It has now been found that these alloys gain in hardness by adding up to z% cadmium, preferably above 0.5% cadmium, and that these alloys with increased hardness also retain the good remeltability and low heat hardening of the alloys of the main patent. The higher hardness achieved by adding cadmium is resistant to prolonged heating and more frequent remelting. The corrosion resistance of the alloy is also not adversely affected by the addition of cadmium.

Die kadmiumhaltigen Legierungen können insbesondere für Zwecke, bei denen auch ohne Warmbehandlung eine höhere Härte erwünscht erscheint, angewendet werden.The cadmium-containing alloys can be used in particular for purposes at which a higher hardness appears to be desirable even without heat treatment will.

Claims (1)

PATENTANSPRÜCHE: i. Bleilägermetall, gekennzeichnet durch folgende Zusammensetzung: o,6o bis 0,75 0/0, vorzugsweise über 0,7 % Kalzium, mindestens o;2 0,l0, vorzugsweise mindestens 0,35 % Barium oder Strontium oder beide, und zwar bis zu einer oberen Grenze von o,6 0/0, vorzugsweise bis 0,55 0/0 für jedes der beiden Metalle, 0,i bis 0,25 % Natrium, o,oi bis 0,2 O/, Aluminium, bis i 0/0, vorzugsweise 0,5 und mehr Prozent Kadmium, Rest Blei. z. Bleilagermetall nach Anspruch r, dadurch gekennzeichnet, daß es noch o,oi bis 0,05 0,10 Kalium enthält. Angezogene Druckschriften: Österreichische Patentschrift Nr. io6 2o8.PATENT CLAIMS: i. Lead metal, characterized by the following composition: 0.6 to 0.75 %, preferably over 0.7% calcium, at least 0.210, preferably at least 0.35% barium or strontium or both, up to an upper limit of 0.6%, preferably to 0.55 %, for each of the two metals, 0.1 to 0.25% sodium, o, oi to 0.2%, aluminum, to i 0 / 0, preferably 0.5 and more percent cadmium, the remainder lead. z. Lead-bearing metal according to claim r, characterized in that it also contains from 0.05 to 0.10 potassium. Attached publications: Austrian patent specification no. Io6 2o8.
DEM3454D 1941-03-19 1941-03-19 Lead-bearing metal Expired DE912508C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM3454D DE912508C (en) 1941-03-19 1941-03-19 Lead-bearing metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM3454D DE912508C (en) 1941-03-19 1941-03-19 Lead-bearing metal

Publications (1)

Publication Number Publication Date
DE912508C true DE912508C (en) 1954-05-31

Family

ID=7292183

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM3454D Expired DE912508C (en) 1941-03-19 1941-03-19 Lead-bearing metal

Country Status (1)

Country Link
DE (1) DE912508C (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT106208B (en) * 1924-03-12 1927-04-25 Metallbank & Metallurg Ges Ag High lead bearing metal.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT106208B (en) * 1924-03-12 1927-04-25 Metallbank & Metallurg Ges Ag High lead bearing metal.

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