Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A rock drill insert
A rock drill insert made of cemented carbide that comprises hard constituents of 5 tungsten carbide (WC) in a binder phase comprising Co, wherein the cemented carbide comprises 4-18 mass % Co and balance WC and unavoidable impurities, characterized in that said cemented carbide also comprises Cr in such an amount that the mass ratio Cr/Co is within the range of 0.04-0.19, and, the difference between the hardness at 0.3 mm depth at any point of the surface of the rock drill insert and the 10 hardness of the bulk of the rock drill insert is at least 40 HV3. 17796089_1 (GHMatter) P110860.AU.1
A rock drill insert
A rock drill insert made of cemented carbide that comprises hard constituents of 5 tungsten carbide (WC) in a binder phase comprising Co, wherein the cemented carbide comprises 4-18 mass % Co and balance WC and unavoidable impurities, characterized in that said cemented carbide also comprises Cr in such an amount that the mass ratio Cr/Co is within the range of 0.04-0.19, and, the difference between the hardness at 0.3 mm depth at any point of the surface of the rock drill insert and the 10 hardness of the bulk of the rock drill insert is at least 40 HV3. 17796089_1 (GHMatter) P110860.AU.1
A rock drill insert
MÅRTENSSON MALIN (Autor:in) / ARVANITIDIS IOANNIS (Autor:in) / TURBA KRYSTOF (Autor:in)
02.03.2023
Patent
Elektronische Ressource
Englisch