Global Patent Index - EP 3260561 A1

EP 3260561 A1 20171227 - GRAIN REFINEMENT OF COPPER ZINC SILICON CASTING ALLOYS WITH IRON AND BORON

Title (en)

GRAIN REFINEMENT OF COPPER ZINC SILICON CASTING ALLOYS WITH IRON AND BORON

Title (de)

KORNFEINUNG VON KUPFER-ZINK-SILICIUM-GUSSLEGIERUNGEN MIT EISEN UND BOR

Title (fr)

AFFINEMENT DE GRAINS D'ALLIAGES DE COULÉE CUIVRE/ZINC/SILICIUM À L'AIDE DE FER ET DE BORE

Publication

EP 3260561 A1 20171227 (DE)

Application

EP 17001201 A 20140703

Priority

  • DE 102013012288 A 20130724
  • EP 14735475 A 20140703
  • EP 2014001832 W 20140703

Abstract (en)

[origin: WO2015010768A1] The invention relates to a copper alloy with the following composition [in % by weight]: Cu from 70.0 to 97.0%; Si from 2.0 to 4.5%; B from 0.002 to 0.03%; Fe from 0.01 to 1.0%; if desired also up to 2.0% of Sn, if desired also up to 0.4% of Ni, if desired also up to 0.2% of P, if desired also up to 0.25% of Pb, and if desired in each case also up to 0.15% of As or Sb, the remainder being Zn and unavoidable impurities. The ratio of boron content to the sum of iron content and nickel content here is at least 0.025 and at most 0.12. The invention further relates to the use of boron and iron and optionally also nickel as means for obtaining grain-refined copper-zinc-silicon alloys.

Abstract (de)

Die Erfindung betrifft die Verwendung von Bor und Eisen sowie optional noch Nickel als Kornfeinungsmittel für Kupfer-Zink-Silicium-Gusslegierungen. Dabei beträgt das Verhältnis aus Borgehalt und der Summe aus Eisen- und Nickelgehalt mindestens 0,025 und höchstens 0,12.

IPC 8 full level

C22C 9/04 (2006.01); C22C 1/06 (2006.01)

CPC (source: EP)

C22C 1/06 (2013.01); C22C 9/04 (2013.01)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

DE 102013012288 A1 20150129; EP 3024956 A1 20160601; EP 3024956 B1 20180627; EP 3260561 A1 20171227; EP 3260561 B1 20200624; WO 2015010768 A1 20150129

DOCDB simple family (application)

DE 102013012288 A 20130724; EP 14735475 A 20140703; EP 17001201 A 20140703; EP 2014001832 W 20140703