摘要:
The steel wire material of the present invention contains 0.05 to 1.2% of C (mass %; same for the chemical components hereafter), 0.01 to 0.5% of Si, 0.1 to 1.5% of Mn, 0.02% or less (but not 0%) of P, 0.02% or less (but not 0%) of S, and 0.005% or less (but not 0%) of N, with the balance being iron and inevitable impurities. The wire material has a scale layer that is no thicker than 7.0 μm or less. The scale layer has an FeO percentage of 30 to 80 vol % and an Fe2SiO4 percentage of less than 0.1 vol %. The scale layer that is formed will not peel when cooled after hot rolling or during storage and transport, but will easily peel during mechanical descaling.
摘要:
A hard coating film having wear resistance superior to conventional TiAlN coating films, oxide coating films, and the like. The hard coating film of the present invention has a component composition represented by one of the following two formulas: (TiaAlbSic)Ox, wherein 0.3≦a≦0.7, 0.3≦b≦0.7, 0≦c≦0.2, a+b+c=1, and 0.8≦[x/(2a+1.5b+2c)]≦1.2; and (TiaCrdAlbSic)Ox, wherein 0.05≦a≦0.4, 0.1≦d≦0.85, 0≦b≦0.7, 0≦c≦0.2, a+b+c+d=1, and 0.8≦[x/(2a+1.5d+1.5b+2c)]≦1.2; where variables a, d, b, and c denote the atomic ratios of Ti, Cr, Al, and Si respectively, and variable x indicates the atomic ratio of O.
摘要翻译:具有优于常规TiAlN涂膜,氧化物涂膜等的耐磨性的硬涂层膜。 本发明的硬涂膜具有由以下两种式中的一种表示的组分组成:(TiaAlbSic)Ox,其中0.3和nlE; a≦̸ 0.7,0.3和nlE; b≦̸ 0.7,0和nlE; c≦̸ 0.2,a + b + c = 1和0.8≦̸ [x /(2a + 1.5b + 2c)]≦̸ 1.2; 和(TiaCrdAlbSic)Ox,其中0.05和n1E; a和nlE; 0.4,0.1和nlE; d≦̸ 0.85,0和nlE; b≦̸ 0.7,0和nlE; c≦̸ 0.2,a + b + c + d = 1和0.8& (2a + 1.5d + 1.5b + 2c)]≦̸ 1.2; 其中变量a,d,b和c分别表示Ti,Cr,Al和Si的原子比,变量x表示O的原子比。
摘要:
An FeO layer including fine crystal grains having random orientation is formed as inner layer scale on the surface of the steel wire rod containing C: 0.05-1.2 mass % (hereinafter referred to as “%”), Si: 0.01-0.50%, Mn: 0.1-1.5%, P: 0.02% or below, S: 0.02% or below, N: 0.005% or below, an Fe2SiO4 layer with the thickness: 0.01-1.0 μm is formed in the boundary face between the FeO layer of the inner layer scale and steel, and the thickness of the inner layer scale is 1-40% of the total scale thickness. In another aspect, the maximum grain size of the crystal grain of the inner layer scale is 5.0 μm or below and the average grain size is 2.0 μm or below.
摘要:
This steel wire material contains 0.05%-1.2% C (“%” means “% by mass,” same hereinafter for chemical components.), 0.01%-0.7% Si, 0.1%-1.5% Mn, 0.02% max. P (not including 0%), 0.02% max. S (not including 0%), and 0.005% max. N (not including 0%), with the remainder being iron and unavoidable impurities. The steel wire material has a scale 6.0-20 μm thick and holes of an equivalent circle diameter of 1 μm max. in said scale that occupy 10% by area max. Said scale does not detach in the cooling process after hot rolling or during storage or transportation but can readily detach during mechanical descaling.
摘要:
A hard coating film having wear resistance superior to conventional TiAlN coating films, oxide coating films, and the like. The hard coating film of the present invention has a component composition represented by one of the following two formulas: (TiaAlbSic)Ox, wherein 0.3≦a≦0.7, 0.3≦b≦0.7, 0≦c≦0.2, a+b+c=1, and 0.8≦[x/(2a+1.5b+2c)]≦1.2; and (TiaCrdAlbSic)Ox, wherein 0.05≦a≦0.4, 0.1≦d≦0.85, 0≦b≦0.7, 0≦c≦0.2, a+b+c+d=1, and 0.8≦[x/(2a+1.5d+1.5b+2c)]≦1.2; where variables a, d, b, and c denote the atomic ratios of Ti, Cr, Al, and Si respectively, and variable x indicates the atomic ratio of O.
摘要翻译:具有优于常规TiAlN涂膜,氧化物涂膜等的耐磨性的硬涂层膜。 本发明的硬涂膜具有由以下两种式中的一种表示的组分组成:(TiaAlbSic)Ox,其中0.3和nlE; a≦̸ 0.7,0.3和nlE; b≦̸ 0.7,0和nlE; c≦̸ 0.2,a + b + c = 1和0.8≦̸ [x /(2a + 1.5b + 2c)]≦̸ 1.2; 和(TiaCrdAlbSic)Ox,其中0.05和n1E; a和nlE; 0.4,0.1和nlE; d≦̸ 0.85,0和nlE; b≦̸ 0.7,0和nlE; c≦̸ 0.2,a + b + c + d = 1和0.8& (2a + 1.5d + 1.5b + 2c)]≦̸ 1.2; 其中变量a,d,b和c分别表示Ti,Cr,Al和Si的原子比,变量x表示O的原子比。
摘要:
An FeO layer including fine crystal grains having random orientation is formed as inner layer scale on the surface of the steel wire rod containing C: 0.05-1.2 mass % (hereinafter referred to as “%”), Si: 0.01-0.50%, Mn: 0.1-1.5%, P: 0.02% or below, S: 0.02% or below, N: 0.005% or below, an Fe2SiO4 layer with the thickness: 0.01-1.0 μm is formed in the boundary face between the FeO layer of the inner layer scale and steel, and the thickness of the inner layer scale is 1-40% of the total scale thickness. In another aspect, the maximum grain size of the crystal grain of the inner layer scale is 5.0 μm or below and the average grain size is 2.0 μm or below.