Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
ROCK DRILL INSERT
A rock drill insert made of cemented carbide that comprises hard constituents of tungsten carbide (WC) in a binder phase of Ni-Cr, or Ni-Co-Cr, and balance WC and unavoidable impurities, wherein the cemented carbide comprises 3.5-18 wt% binder phase, the binder phase comprises >0 wt% Ni, the mass ratio Cr/(Ni+Co) is 0.02-0.19, the difference between the hardness at 0.3 mm depth at some point of the surface of the rock drill insert and the minimum hardness of the bulk of the rock drill insert is at least 30 HV3.
一种由硬质合金制成的钻岩刀片，所述硬质合金包括硬质成分和余量WC以及不可避免的杂质，所述硬质成分是在Ni‑Cr或Ni‑Co‑Cr粘结相中的碳化钨(WC)，其中所述硬质合金包括3.5‑18wt％的粘结相，所述粘结相包含＞0wt％的Ni，质量比Cr/(Ni+Co)为0.02‑0.19，在所述钻岩刀片的表面的某点处的0.3mm深度处的硬度与所述钻岩刀片的块体的最小硬度之间的差为至少30 HV3。
ROCK DRILL INSERT
A rock drill insert made of cemented carbide that comprises hard constituents of tungsten carbide (WC) in a binder phase of Ni-Cr, or Ni-Co-Cr, and balance WC and unavoidable impurities, wherein the cemented carbide comprises 3.5-18 wt% binder phase, the binder phase comprises >0 wt% Ni, the mass ratio Cr/(Ni+Co) is 0.02-0.19, the difference between the hardness at 0.3 mm depth at some point of the surface of the rock drill insert and the minimum hardness of the bulk of the rock drill insert is at least 30 HV3.
一种由硬质合金制成的钻岩刀片，所述硬质合金包括硬质成分和余量WC以及不可避免的杂质，所述硬质成分是在Ni‑Cr或Ni‑Co‑Cr粘结相中的碳化钨(WC)，其中所述硬质合金包括3.5‑18wt％的粘结相，所述粘结相包含＞0wt％的Ni，质量比Cr/(Ni+Co)为0.02‑0.19，在所述钻岩刀片的表面的某点处的0.3mm深度处的硬度与所述钻岩刀片的块体的最小硬度之间的差为至少30 HV3。
ROCK DRILL INSERT
钻岩刀片
LILJA MIRJAM (Autor:in) / TARRAGO CIFRE JOSE (Autor:in) / BORGH IDA (Autor:in) / MARTENSSON MALIN (Autor:in) / ARVANITIDIS IOANNIS (Autor:in) / TURBA KRYSTOF (Autor:in)
22.01.2021
Patent
Elektronische Ressource
Chinesisch