摘要:
A non-oriented electrical steel sheet is characterized in that the number density of inclusions with an equivalent volume diameter of less than 100 nm contained in the steel sheet is 1×1010 [/mm3] or less, and that the steel sheet contains, by mass %, C: up to 0.01%, Si: 0.1% to 7.0%. Al: 0.1% to 3.0%. Mn: 0.1% to 2.0%, REM: 0.0003% to 0.05%. Ti: up to 0.02%. S: up to 0.005%. and N: up to 0.005%. the balance Fe and inevitable impurities and the mass % of Al represented by [Al] and the mass % of Ti represented by [Ti] satisfy the equation log([Ti]×[N])−1.19×log([Al]×[N])+1.84>0 . . . (1).
摘要翻译:无取向电工钢板的特征在于,钢板中所含的等体积直径小于100nm的夹杂物的数密度为1×10 10 [/ mm 3]以下,钢板以质量%计, ,C:0.01%以下,Si:0.1〜7.0%。 Al:0.1〜3.0%。 Mn:0.1〜2.0%,REM:0.0003〜0.05%。 Ti:最高0.02%。 S:高达0.005%。 和N:高达0.005%。 由[Al]表示的Fe和不可避免的杂质和Al的质量%以及由[Ti]表示的Ti的质量%满足等式log([Ti] x [N]) - 1.19xlog([Al] x [ N])+ 1.84> 0。 。 。 (1)。
摘要:
A non-oriented electrical steel sheet is characterized in that the number density of inclusions with an equivalent volume diameter of less than 100 nm contained in the steel sheet is 1×1010 [/mm3] or less, and that the steel sheet contains, by mass%, C: up to 0.01%, Si: 0.1% to 7.0%, Al: 0.1% to 3.0%, Mn: 0.1% to 2.0%, REM: 0.0003% to 0.05%, Ti: up to 0.02%, S: up to 0.005%, and N: up to 0.005%, the balance Fe and inevitable impurities and the mass % of Al represented by [All and the mass % of Ti represented by [Ti] satisfy the equation loq([Ti]×[N])−1.19×loq([Al]×[N])+1.84>0 . . . (1).
摘要翻译:无取向电工钢板的特征在于,钢板中所含的等体积直径小于100nm的夹杂物的数量密度为1×10 6 [/ mm 3 / SUP>]以下,钢板以质量%计含有C:0.01%以下,Si:0.1〜7.0%,Al:0.1〜3.0%,Mn:0.1〜2.0%,REM: 0.0003%〜0.05%,Ti:0.02%以下,S:0.005%以下,N:0.005%以下,余量为Fe和不可避免的杂质,Al的质量%为[全部和质量%Ti 由[Ti]表示,满足方程式loq([Ti] x [N]) - 1.19xloq([Al] x [N])+ 1.84> 0。 。 。 (1)。
摘要:
A quench solidification method, wherein a steel cast strip having a mean grain size 50 μm or more is prepared and then the steel cast strip is rolled to produce a non-oriented electrical steel sheet having high magnetic flux density in both L and C directions. However the magnetic flux density reduces when the cold reduction rate exceeds 70%. To avoid this problem the non-oriented electrical steel sheet is manufactured with a ratio of at least 4 of the integrated intensity of the {100} plane for a given sample of steel to the integrated intensity of {100} plane for a “random” sample in which crystal grains have random orientations; and a cold reduction rate of the cold-rolling is between 70% and 85%. The superheating degree of the molten steel can be 70° C. or more.
摘要:
The invention provides a non-oriented electrical steel sheet excellent in yield strength for use as an iron core material for high rpm motors that does not sacrifice yield or productivity in motor core punching or steel sheet production, which non-oriented electrical steel sheet is given a chemical composition of, in mass %, C: 0.01 to 0.05%, Si: 2.0 to 4.0%, Mn: 0.05 to 0.5%, Al: 3.0% or less and Nb: 0.01 to 0.05%, and optionally Ni at a preferable content of more than 0.5% and less than 3.0%, the balance being Fe and unavoidable impurities, Mn and C contents expressed in mass % are made to satisfy Mn≦0.6−10×C, recrystallized portion area fraction is made 50% or greater, yield strength in tensile testing is made 650 MPa or greater, and average-grain diameter viewed in steel sheet cross-section is made 40 μm or less, and electrical steel sheet production is conducted using a hot-rolled sheet whose transition temperature in impact testing is 70° C. or less.
摘要:
The invention provides a non-oriented electrical steel sheet excellent in yield strength for use as an iron core material for high rpm motors that does not sacrifice yield or productivity in motor core punching or steel sheet production, which non-oriented electrical steel sheet is given a chemical composition of, in mass %, C: 0.01 to 0.05%, Si: 2.0 to 4.0%, Mn: 0.05 to 0.5%, Al: 3.0% or less and Nb: 0.01 to 0.05%, and optionally Ni at a preferable content of more than 0.5% and less than 3.0%, the balance being Fe and unavoidable impurities, Mn and C contents expressed in mass % are made to satisfy Mn≦0.6-10×C, recrystallized portion area fraction is made 50% or greater, yield strength in tensile testing is made 650 MPa or greater, and average-grain diameter viewed in steel sheet cross-section is made 40 μm or less, and electrical steel sheet production is conducted using a hot-rolled sheet whose transition temperature in impact testing is 70° C. or less.
摘要:
A high-strength non-oriented electrical steel sheet contains: by mass %, C: not less than 0.002% nor more than 0.05%; Si: not less than 2.0% nor more than 4.0%; Mn: not less than 0.05% nor more than 1.0%; N: not less than 0.002% nor more than 0.05%; and Cu: not less than 0.5% nor more than 3.0%. An Al content is 3.0% or less, and when a Nb content (%) is set to [Nb], a Zr content (%) is set to [Zr], a Ti content (%) is set to [Ti], a V content (%) is set to [V], a C content (%) is set to [C], and an N content (%) is set to [N], Formula (1) and Formula (2) are satisfied. A balance is composed of Fe and inevitable impurities, a recrystallization area ratio is 50% or more, yield stress at a tensile test is 700 MPa or more, fracture elongation is 10% or more, and an eddy current loss We10/400 (W/kg) satisfies Formula (3) in relation to a sheet thickness t (mm) of the steel sheet. 2.0×10−4≦[Nb]/93+[Zr]/91+[Ti]/48+[V]/51 (1) 1.0×10−3≦[C]/12+[N]/14−([Nb]/93+[Zr]/91+[Ti]/48+[V]/51)≦3.0×10−3 (2) We10/400≦70×t2 (3)
摘要:
A non-oriented electrical steel sheet excellent in permeability whose steel contains, in percentage by weight, 0.1%≦Si≦1.0%, 0.1%≦Mn≦0.8%, 0.1%≦Al≦1.0% and the balance of Fe and unavoidable impurities, and which has an ay transformation, an electrical resistivity of not less than 10×10−8 &OHgr;m and not greater than 32×10−8 &OHgr;m and a permeability &mgr;{fraction (15/60)} of not less than 1500 (Gauss/Oe); and a method of producing the same.
摘要翻译:钢的渗透性优异的无方向性电磁钢板,以重量%计含有0.1%<= Si <= 1.0%,0.1%<= Mn <= 0.8%,0.1%<= Al <= 1.0% Fe和不可避免的杂质的平衡,并且具有不少于10重量%的转化,电阻率不小于10×10 -8欧姆和不大于32×10 -8欧姆,渗透率μ(分数(15/60)}不小于1500 (高斯/ Oe); 及其制造方法。
摘要:
The present invention provides: an ink jet recording material which displays sufficient water resistance and further, excellent definition of initial images; and a coating agent therefor to give such an ink jet recording material. A first coating agent for ink jet recording materials, according to the present invention, comprises: an aqueous polymer having a carboxyl group; and a water-soluble polymer having an oxazoline group as a crosslinking agent. A second coating agent for ink jet recording materials, according to the present invention, comprises a polymer and a crosslinking agent, wherein the polymer has both a structural unit, as formed by ring-opening polymerization of an oxazoline compound, and a carboxyl group. An ink jet recording material, according to the present invention, has on at least one face thereof a coated and cured layer of the above present invention first coating agent and/or a coated and cured layer of the above present invention second coating agent, and displays high water resistance and excellent image quality.
摘要:
A carbon black-graft polymer, produced by causing a polymer possessing within the molecular unit thereof at least one reactive group selected from the class consisting of aziridine group, oxazoline group. N-hydroxyalkylamide group, epoxy group, and thioepoxy group to react with carbon black. The polymer can be used as a toner for electrostatically charged image, resin composition, coating composition, ink for thermographic transfer, coating agent for magnetic recording medium, rubber composition, and carbon black dispersion and the like.
摘要:
A high-strength non-oriented electrical steel sheet contains: in mass %, C: 0.010% or less; Si: not less than 2.0% nor more than 4.0%; Mn: not less than 0.05% nor more than 0.50%; Al: not less than 0.2% nor more than 3.0%; N: 0.005% or less; S: not less than 0.005% nor more than 0.030%; and Cu: not less than 0.5% nor more than 3.0%, a balance being composed of Fe and inevitable impurities. An expression (1) is established where a Mn content is represented as [Mn] and a S content is represented as [S], and not less than 1.0×104 pieces nor more than 1.0×106 pieces of sulfide having a circle-equivalent diameter of not less than 0.1 μm nor more than 1.0 μm are contained per 1 mm2 10≦[Mn]/[S]≦50 (1).