CEMENTED CARBIDE AND CUTTING TOOL
卷宗概要
发明人
Takahiro YAMAKAWA; Takato YAMANISHI; Masahito HIKIJI
IPC 分类
CPC 分类
A cemented carbide includes a first phase, a second phase, and a third phase. The first phase consists of WC particles. A content of the first phase is 65 vol % to 85 vol %. The particles have an arithmetic mean particle size a of 0.5 μm to 2.0 μm. The a and a particle size standard deviation b of the particles have a relation of Formula I. The a and a number-based 10% cumulative particle size c of the particles have a relation of Formula II. The second phase is composed of cobalt. A cobalt content in the cemented carbide is 3 mass % to 15 mass %. The third phase is composed of at least one element selected from the group consisting of titanium and the like, and at least any of carbon and nitrogen. The third phase includes no WC. A total content of titanium and the like in the cemented carbide is 2 mass % to 8 mass %.
原文（中文）
A cemented carbide includes a first phase, a second phase, and a third phase. The first phase consists of WC particles. A content of the first phase is 65 vol % to 85 vol %. The particles have an arithmetic mean particle size a of 0.5 μm to 2.0 μm. The a and a particle size standard deviation b of the particles have a relation of Formula I. The a and a number-based 10% cumulative particle size c of the particles have a relation of Formula II. The second phase is composed of cobalt. A cobalt content in the cemented carbide is 3 mass % to 15 mass %. The third phase is composed of at least one element selected from the group consisting of titanium and the like, and at least any of carbon and nitrogen. The third phase includes no WC. A total content of titanium and the like in the cemented carbide is 2 mass % to 8 mass %.