EP 2893118 A1 20150715 - ULTRA-HARD CONSTRUCTIONS WITH IMPROVED ATTACHMENT STRENGTH
Title (en)
ULTRA-HARD CONSTRUCTIONS WITH IMPROVED ATTACHMENT STRENGTH
Title (de)
ULTRAHARTE KONSTRUKTIONEN MIT VERBESSERTER BEFESTIGUNGSSTÄRKE
Title (fr)
CONSTRUCTIONS ULTRA-DURES AVEC FORCE D'ATTACHEMENT AMÉLIORÉE
Publication
Application
Priority
- US 201261698408 P 20120907
- US 201314019411 A 20130905
- US 2013058425 W 20130906
Abstract (en)
[origin: US2014069727A1] Ultra-hard constructions comprise a sintered diamond-bonded body comprising a matrix of bonded-together diamond grains and a plurality of interstitial regions substantially free of a catalyst material. A metal material comprising a carbide constituent is disposed on a substrate interface surface of the diamond body. A substrate is attached to the diamond-bonded body through a braze joint interposed between the metal material and the substrate. The braze joint is formed from a non-active braze material that reacts with the substrate and metal material. The braze joint is formed at the melting temperature of the non-active braze material in the absence of high-pressure conditions. In an example embodiment, the non-active braze material reacts with the carbide constituent in the metal material. Example materials useful for forming the non-active braze material include those selected from Cu, Ni, Mn, Au, Pd, and combinations and alloys thereof.
IPC 8 full level
E21B 10/46 (2006.01); B24D 3/10 (2006.01); B24D 18/00 (2006.01); C04B 35/645 (2006.01); C04B 37/02 (2006.01); E21B 10/573 (2006.01)
CPC (source: CN EP US)
B23K 1/0008 (2013.01 - CN EP US); B24D 3/007 (2013.01 - US); B24D 3/10 (2013.01 - CN EP US); B24D 18/0009 (2013.01 - CN EP US); C04B 35/645 (2013.01 - CN EP US); C04B 37/025 (2013.01 - CN EP US); C04B 37/026 (2013.01 - CN EP US); E21B 10/55 (2013.01 - US); E21B 10/567 (2013.01 - CN EP US); E21B 10/5735 (2013.01 - CN EP US); B23K 2101/002 (2018.07 - CN EP US); C04B 2235/5436 (2013.01 - CN EP US); C04B 2237/083 (2013.01 - CN EP US); C04B 2237/12 (2013.01 - CN EP US); C04B 2237/123 (2013.01 - CN EP US); C04B 2237/124 (2013.01 - CN EP US); C04B 2237/125 (2013.01 - CN EP US); C04B 2237/363 (2013.01 - CN EP US); C04B 2237/401 (2013.01 - CN EP US); C04B 2237/406 (2013.01 - CN EP US); C04B 2237/55 (2013.01 - CN EP US); C04B 2237/60 (2013.01 - CN EP US); C04B 2237/708 (2013.01 - CN EP US); C04B 2237/72 (2013.01 - CN EP US)
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
US 2014069727 A1 20140313; CA 2883776 A1 20140313; CN 104769208 A 20150708; EP 2893118 A1 20150715; EP 2893118 A4 20151028; WO 2014039771 A1 20140313
DOCDB simple family (application)
US 201314019411 A 20130905; CA 2883776 A 20130906; CN 201380055829 A 20130906; EP 13835409 A 20130906; US 2013058425 W 20130906