公开(公告)号：US20140178242A1

公开(公告)日：2014-06-26

申请号：US14117964

申请日：2012-05-07

Applicant: Naoyuki Sano ,  Tatsuya Hasegawa

Inventor： Naoyuki Sano ,  Tatsuya Hasegawa

IPC: C22C38/60 ,  C22C38/24 ,  C22C38/42 ,  C22C38/00 ,  C22C38/46 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/28 ,  C22C38/50

CPC classification number: C22C38/42 ,  C21D8/065 ,  C21D9/0068 ,  C21D9/525 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/24 ,  C22C38/28 ,  C22C38/46 ,  C22C38/50 ,  C22C38/60 ,  F16C7/023 ,  F16C9/045

Abstract: Non-post-heat treated steel contains: in mass %, C: 0.27 to 0.40%, Si: 0.15 to 0.70%, Mn: 0.55 to 1.50%, P: 0.010 to 0.070%, S: 0.05 to 0.15%, Cr: 0.10 to 0.60%, V: 0.030% or more and less than 0.150%, Ti: more than 0.10%, not more than 0.200%, Al: 0.002 to 0.050%, and N: 0.002 to 0.020%, and optionally one or more of Cu≦0.40% and Ni≦0.30%; the balance being Fe and impurities, wherein [Ti]−3.4[N]−1.5[S]

Abstract translation: 非后热处理钢中，以质量％计含有C：0.27〜0.40％，Si：0.15〜0.70％，Mn：0.55〜1.50％，P：0.010〜0.070％，S：0.05〜0.15％，Cr： 0.10〜0.60％，V：0.030％以上且小于0.150％，Ti：0.10％以上，0.200％以下，Al：0.002〜0.050％，N：0.002〜0.020％，可选地， 的Cu＆nlE; 0.40％和Ni＆NlE; 0.30％; 其余为Fe和杂质，其中[Ti] -3.4 [N] -1.5 [S] <0和0.60 [C] +（[Si] / 10）+（[Mn] / 5）+ Cr] / 22）+（33 [V] / 20） - （5 [S] / 7）<0.80。 该钢可以用于制造用于汽车发动机的高疲劳强度连杆，其由热锻造形状断裂。 非后热处理钢构件的vERT可以为1.0〜7.0J / cm 2，w≥450MPa。

公开(公告)号：US20110284133A1

公开(公告)日：2011-11-24

申请号：US13116405

申请日：2011-05-26

Applicant: Naoyuki Sano ,  Masayuki Horimoto ,  Yoshinari Okada ,  Masaki Amano ,  Akihito Ninomiya

Inventor： Naoyuki Sano ,  Masayuki Horimoto ,  Yoshinari Okada ,  Masaki Amano ,  Akihito Ninomiya

IPC: C23C8/32 ,  B32B15/04

CPC classification number: C23C8/32 ,  C21D1/06 ,  C21D1/18 ,  C21D9/32 ,  C21D2211/004 ,  C21D2221/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/18 ,  C22C38/22 ,  C23C8/02 ,  C23C8/22 ,  C23C8/80

Abstract: A carbonitrided part, where a base steel contains, in mass percent, C: 0.10 to 0.35%, Si: 0.15 to 1.0%, Mn: 0.30 to 1.0%, Cr: 0.40 to 2.0%, S≦0.05%, and according to need further Mo≦0.50%, with the balance being Fe and impurities, and in the region to a position of effective hardening depth from the surface of a hardened layer of the carbonitrided part, iron nitride particles of ε-Fe3N and/or ζ-Fe2N are dispersed, and retained austenite is decomposed into bainitic ferrite, Fe3C, and α″-Fe16N2 has excellent abrasion strength and high pitting strength, although the base steel is a low-cost one with less content of Mo of an expensive alloy element or without addition of Mo. This carbonitrided part can be produced, for example, by subjecting the base steel part to carburizing in which the base steel part is held in a carburizing atmosphere at 900 to 950° C. and successively to carbonitriding in which the base steel part is held in a carbonitriding atmosphere with a nitrogen potential of 0.2 to 0.6% at 800 to 900° C., subsequently quenching the base steel part, and thereafter tempering the base steel part by heating to a temperature in the range of more than 250° C. to not more than 350° C.

Abstract translation: 碳素氮化部，以质量％计含有C：0.10〜0.35％，Si：0.15〜1.0％，Mn：0.30〜1.0％，Cr：0.40〜2.0％，S＆lt; lE; 0.05％ 需要进一步的Mo＆NE; 0.50％，余量为Fe和杂质，并且在该区域中，从碳氮共渗部分的硬化层的表面到有效硬化深度的位置，Fe 3 N和/或ζ的氮化铁颗粒 -Fe2N分散，残留奥氏体分解为贝氏体铁素体，Fe3C，α“-Fe16N2具有优异的耐磨强度和较高的点蚀强度，虽然基础钢是价格昂贵的合金元素的Mo含量低的低成本 或不添加Mo。该碳氮共渗部分可以例如通过将基体钢部分进行渗碳处理来生产，其中将基体钢部分保持在渗碳气氛中在900〜950℃，然后依次进行碳氮共渗，其中 基础钢部分保持在含氮化的碳氮共渗气氛中 n电位在800〜900℃下为0.2〜0.6％，接着对基体钢部分进行淬火，然后通过加热至250℃以上350℃以下的温度回火钢基部分 C。

公开(公告)号：US10087510B2

公开(公告)日：2018-10-02

申请号：US14117964

申请日：2012-05-07

Applicant: Naoyuki Sano ,  Tatsuya Hasegawa

Inventor： Naoyuki Sano ,  Tatsuya Hasegawa

IPC: C22C38/42 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/24 ,  C22C38/28 ,  C22C38/46 ,  C22C38/50 ,  C22C38/60 ,  C21D8/06 ,  C21D9/00 ,  C21D9/52 ,  C22C38/00 ,  F16C9/04 ,  F16C7/02

Abstract: Non-post-heat treated steel contains: in mass %, C: 0.27 to 0.40%, Si: 0.15 to 0.70%, Mn: 0.55 to 1.50%, P: 0.010 to 0.070%, S: 0.05 to 0.15%, Cr: 0.10 to 0.60%, V: 0.030% or more and less than 0.150%, Ti: more than 0.10%, not more than 0.200%, Al: 0.002 to 0.050%, and N: 0.002 to 0.020%, and optionally one or more of Cu≤0.40% and Ni≤0.30%; the balance being Fe and impurities, wherein [Ti]−3.4[N]−1.5[S]

公开(公告)号：US07416616B2

公开(公告)日：2008-08-26

申请号：US11312498

申请日：2005-12-21

Applicant: Naoyuki Sano ,  Takayuki Nakatani ,  Yoshihiko Kamada

Inventor： Naoyuki Sano ,  Takayuki Nakatani ,  Yoshihiko Kamada

IPC: C22C38/22 ,  C22C38/04 ,  C22C38/14

CPC classification number: C22C38/60 ,  C22C38/02 ,  C22C38/04 ,  C22C38/14

Abstract: Non-heat treated steel for soft-nitriding to form parts having high fatigue strength and excellent bend leveling property even in a case of applying soft-nitriding without thermal refining, comprising, by mass %, C: 0.30 to 0.45%, Si: 0.1 to 0.5%, Mn: 0.6 to 1.0%, Ti: 0.005-0.1% and N: 0.015 to 0.030%, and the balance Fe and impurities, having a mixed microstructure of bainite and ferrite whose bainite fraction is 5 to 90% or having a mixed microstructure of bainite, ferrite and pearlite whose bainite fraction is 5 to 90%, the steel could contain one or more of elements of Nb: 0.003 to 0.1% Mo: 0.01 to 1.0%, Cu: 0.01-1.0%, Ni: 0.01 to 1.0%, B: 0.001 to 0.005%, S: 0.01 to 0.1%, and Ca: 0.0001 to 0.005.

Abstract translation: 即使在不进行热精炼的情况下进行软氮化的情况下，也可以以质量％计含有C：0.30〜0.45％的Si：0.1的软化氮化的非热处理钢，形成具有高的疲劳强度和优异的弯曲均匀性的部件 至0.5％，Mn：0.6〜1.0％，Ti：0.005〜0.1％，N：0.015〜0.030％，余量为Fe，杂质，贝氏体和铁素体的组织为贝氏体组分，贝氏体分数为5〜90％ 贝氏体，铁素体和珠光体的贝氏体分数为5〜90％的混合微观结构，该钢可含有Nb：0.003〜0.1％Mo：0.01〜1.0％，Cu：0.01〜1.0％，Ni： 0.01〜1.0％，B：0.001〜0.005％，S：0.01〜0.1％，Ca：0.0001〜0.005。

公开(公告)号：US5948180A

公开(公告)日：1999-09-07

申请号：US106361

申请日：1998-06-29

Applicant: Toshiro Tomida ,  Shigeo Uenoya ,  Naoyuki Sano

Inventor： Toshiro Tomida ,  Shigeo Uenoya ,  Naoyuki Sano

IPC: C21D8/12 ,  H01F1/147 ,  H01F1/04

CPC classification number: H01F1/14775 ,  C21D8/12 ,  C21D2201/05

Abstract: (1) A doubly oriented silicon steel sheet having excellent magnetic characteristics in two directions, i.e. in a rolling direction and in a direction perpendicular to the rolling direction, and most suited for use as material for cores of small-sized transformers, and (2) a method for manufacturing the same. The doubly oriented silicon steel sheet as mentioned above in (1) is characterized in that: Si and Mn are contained in amounts which satisfy a predetermined formula of relation; an average crystal grain is as large as 1 to 8 times the thickness of the sheet as measured on a cross section parallel to the surface of the sheet; and at least 60% of all crystal grains have a size of X/3 to 3X, where X is an average grain size. In the doubly oriented silicon steel sheet, preferably, crystal grains having a crystallographic orientation difference within .+-.15 degrees from a cubic orientation of {100} occupy an areal percentage of not less than 70%, or the thickness of a surface oxide layer of the steel sheet is not greater than 0.5 .mu.m. The method for manufacturing a doubly oriented magnetic steel sheet as mentioned above in (2) includes the steps of hot-rolling and cold-rolling steel containing C in an amount of 0.02% to 0.2% and Si and M in amounts satisfying a predetermined formula of relation, wherein annealing is performed at a temperature not lower than 750.degree. C. and through quick application of heat during cold rolling; and the obtained steel sheet is annealed under reduced pressure through use of an annealing separator. In this method for manufacturing a doubly oriented magnetic steel sheet, preferably, a rolling reduction is 40% to 85% in cold rolling performed before and after intermediate annealing.

Abstract translation: （1）一种双向取向硅钢板，其在两个方向上具有优异的磁特性，即在轧制方向和与轧制方向垂直的方向上，最适合用作小型变压器的铁心材料，（2） ）其制造方法。 如上述（1）所述的双取向硅钢板的特征在于：Si和Mn的含量满足规定的关系式; 在平行于片材表面的截面上测量的平均晶粒大小为片材厚度的1至8倍; 并且所有晶粒的至少60％具有X / 3至3X的尺寸，其中X是平均晶粒尺寸。 在双取向硅钢板中，优选地，具有{100} <001>的立方取向的±15度以内的晶体取向差的晶粒占面积百分比不小于70％，或者厚度为 钢板的表面氧化层不大于0.5μm。 如上述（2）所述的双向取向电磁钢板的制造方法，包括含有C：0.02〜0.2％的钢的热轧和冷轧钢的工序，以及满足规定的式 的关系，其中退火在不低于750℃的温度下进行，并且在冷轧期间通过快速加热; 通过使用退火分离机将得到的钢板进行减压退火。 在这种制造双向电磁钢板的方法中，优选在中间退火之前和之后的冷轧中，轧制压下率为40％至85％。

公开(公告)号：US20120211122A1

公开(公告)日：2012-08-23

申请号：US13415198

申请日：2012-03-08

Applicant: Naoyuki SANO ,  Masayuki HORIMOTO ,  Yoshinari OKADA ,  Masaki AMANO ,  Akihito NINOMIYA

Inventor： Naoyuki SANO ,  Masayuki HORIMOTO ,  Yoshinari OKADA ,  Masaki AMANO ,  Akihito NINOMIYA

IPC: C23C8/32 ,  C23C8/80

CPC classification number: C23C8/02 ,  C21D1/25 ,  C21D1/74 ,  C21D7/06 ,  C21D9/32 ,  C22C38/02 ,  C22C38/04 ,  C22C38/18 ,  C23C8/22 ,  C23C8/32 ,  C23C8/80

Abstract: A method for producing a carbonitrided member comprising the steps of carburizing a steel part having a composition of, by mass percent, C: 0.10 to 0.35%, Si: 0.15 to 1.0%, Mn: 0.30 to 1.0%, Cr: 0.40 to 2.0%, S: 0.05% or less with the balance being Fe and impurities in a carburizing atmosphere of 900 to 950° C. The carburized steel part is carbonitrided in a carbonitriding atmosphere with the temperature of 800 to 900° C. and the nitrogen potential of 0.2 to 0.6%. The carbonitrided steel part is qhenched and then shot peened. The shot peening treatment may be further performed while heating to a temperature not higher than 350° C. or immediately after heating to a temperature not higher than 350° C. After quenching, the shot peening treatment may be further performed after tempering in the temperature range exceeding 250° C. and not higher than 350° C.

Abstract translation: 碳氮共渗构件的制造方法，其特征在于，将以质量％计含有C：0.10〜0.35％，Si：0.15〜1.0％，Mn：0.30〜1.0％，Cr：0.40〜2.0 ％，S：0.05％以下，余量为渗碳气氛中的Fe和杂质为900〜950℃。渗碳钢部分在碳氮共渗气氛中碳氮共混，温度为800〜900℃，氮势 为0.2〜0.6％。 将碳氮共渗钢部分进行复层，然后喷丸硬化。 可以在加热至不高于350℃的温度或加热至不高于350℃的温度之后进一步进行喷丸硬化处理。淬火后，可以在温度回火之后进一步进行喷丸硬化处理 范围超过250℃，不高于350℃

公开(公告)号：US09062364B2

公开(公告)日：2015-06-23

申请号：US13415198

申请日：2012-03-08

Applicant: Naoyuki Sano ,  Masayuki Horimoto ,  Yoshinari Okada ,  Masaki Amano ,  Akihito Ninomiya

Inventor： Naoyuki Sano ,  Masayuki Horimoto ,  Yoshinari Okada ,  Masaki Amano ,  Akihito Ninomiya

IPC: C23C8/32 ,  C23C8/02 ,  C21D1/25 ,  C21D1/74 ,  C21D7/06 ,  C21D9/32 ,  C22C38/02 ,  C22C38/04 ,  C22C38/18 ,  C23C8/22 ,  C23C8/80

CPC classification number: C23C8/02 ,  C21D1/25 ,  C21D1/74 ,  C21D7/06 ,  C21D9/32 ,  C22C38/02 ,  C22C38/04 ,  C22C38/18 ,  C23C8/22 ,  C23C8/32 ,  C23C8/80

Abstract: A method for producing a carbonitrided member comprising the steps of carburizing a steel part having a composition of, by mass percent, C: 0.10 to 0.35%, Si: 0.15 to 1.0%, Mn: 0.30 to 1.0%, Cr: 0.40 to 2.0%, S: 0.05% or less with the balance being Fe and impurities in a carburizing atmosphere of 900 to 950° C. The carburized steel part is carbonitrided in a carbonitriding atmosphere with the temperature of 800 to 900° C. and the nitrogen potential of 0.2 to 0.6%. The carbonitrided steel part is qhenched and then shot peened. The shot peening treatment may be further performed while heating to a temperature not higher than 350° C. or immediately after heating to a temperature not higher than 350° C. After quenching, the shot peening treatment may be further performed after tempering in the temperature range exceeding 250° C. and not higher than 350° C.

Abstract translation: 碳氮共渗构件的制造方法，其特征在于，将以质量％计含有C：0.10〜0.35％，Si：0.15〜1.0％，Mn：0.30〜1.0％，Cr：0.40〜2.0 ％，S：0.05％以下，余量为渗碳气氛中的Fe和杂质为900〜950℃。渗碳钢部分在碳氮共渗气氛中碳氮共混，温度为800〜900℃，氮势 为0.2〜0.6％。 将碳氮共渗钢部分进行复层，然后喷丸硬化。 可以在加热至不高于350℃的温度或加热至不高于350℃的温度之后进一步进行喷丸硬化处理。淬火后，可以在温度回火之后进一步进行喷丸硬化处理 范围超过250℃，不高于350℃

公开(公告)号：US20060096671A1

公开(公告)日：2006-05-11

申请号：US11312498

申请日：2005-12-21

Applicant: Naoyuki Sano ,  Takayuki Nakatani ,  Yoshihiko Kamada

Inventor： Naoyuki Sano ,  Takayuki Nakatani ,  Yoshihiko Kamada

IPC: C22C38/14

CPC classification number: C22C38/60 ,  C22C38/02 ,  C22C38/04 ,  C22C38/14

Abstract: Non-heat treated steel for soft-nitriding to form parts having high fatigue strength and excellent bend leveling property even in a case of applying soft-nitriding without thermal refining, comprising, by mass %, C: 0.30 to 0.45%, Si: 0.1 to 0.5%, Mn: 0.6 to 1.0%, Ti: 0.005-0.1% and N: 0.015 to 0.030%, and the balance Fe and impurities, having a mixed microstructure of bainite and ferrite whose bainite fraction is 5 to 90% or having a mixed microstructure of bainite, ferrite and pearlite whose bainite fraction is 5 to 90%, the steel could contain one or more of elements of Nb: 0.003 to 0.1% Mo: 0.01 to 1.0%, Cu: 0.01-1.0%, Ni: 0.01 to 1.0%, B: 0.001 to 0.005%, S: 0.01 to 0.1%, and Ca: 0.0001 to 0.005.

Abstract translation: 即使在不进行热精炼的情况下进行软氮化的情况下，也可以以质量％计含有C：0.30〜0.45％的Si：0.1的软化氮化的非热处理钢，形成具有高的疲劳强度和优异的弯曲均匀性的部件 至0.5％，Mn：0.6〜1.0％，Ti：0.005〜0.1％，N：0.015〜0.030％，余量为Fe，杂质，贝氏体和铁素体的组织为贝氏体组分，贝氏体分数为5〜90％ 贝氏体，铁素体和珠光体的贝氏体分数为5〜90％的混合微观结构，该钢可含有Nb：0.003〜0.1％Mo：0.01〜1.0％，Cu：0.01〜1.0％，Ni： 0.01〜1.0％，B：0.001〜0.005％，S：0.01〜0.1％，Ca：0.0001〜0.005。

公开(公告)号：US20080000553A1

公开(公告)日：2008-01-03

申请号：US11892579

申请日：2007-08-24

Applicant: Naoyuki Sano ,  Hitoshi Matsumoto ,  Takayuki Nakatani ,  Yoshihiko Kamada ,  Masaki Amano ,  Tetsuya Asai

Inventor： Naoyuki Sano ,  Hitoshi Matsumoto ,  Takayuki Nakatani ,  Yoshihiko Kamada ,  Masaki Amano ,  Tetsuya Asai

IPC: C23C8/26

CPC classification number: C22C38/60 ,  C21D9/30 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/22 ,  C22C38/24 ,  C23C8/26

Abstract: Soft-nitrided parts wherein a ferrite grain in the diffusion layer does not have a γ′ nitride of more than 20 μm in the longitudinal axis, which is made of a non-heat treated steel that has a chemical composition of, by mass %, C: 0.30 to 0.45%, Si: 0.1 to 0.5%, Mn: 0.6 to 1.0%, Ti: 0.005 to 0.1%, N: 0.010 to 0.030%, and the balance Fe and impurities, and that has a mixed microstructure of bainite and ferrite whose bainite fraction is 5 to 90% or a mixed microstructure of bainite, ferrite and pearlite whose bainite fraction is 5 to 90%. The non-heat treated steel may contain one or more elements of 0.001 to 0.1% of Nb, 0.01 to 1.0% of Mo:, 0.01 to 1.0% of Cu, 0.01 to 1.0% of Ni and 0.001 to 0.005% of B, 0.01 to 0.1% of S and 0.0001 to 0.005% of Ca. This invention provides machinery parts, based on this non-heat treated steel for soft-nitriding, which has further improved high fatigue strength and excellent bending straightening property after soft-nitrided even omitting thermal refining.

Abstract translation: 软化氮化部分，其中扩散层中的铁素体晶粒在纵轴上不具有大于20μm的γ'氮化物，其由化学组成按质量％计的非热处理钢制成， C：0.30〜0.45％，Si：0.1〜0.5％，Mn：0.6〜1.0％，Ti：0.005〜0.1％，N：0.010〜0.030％，余量为Fe和杂质，并具有贝氏体 贝氏体组分为5〜90％的铁素体或贝氏体组份为5〜90％的贝氏体，铁素体和珠光体的组织。 非热处理钢可以含有Nb：0.001〜0.1％，Mo：0.01〜1.0％，Cu：0.01〜1.0％，Ni：0.001〜0.005％，B：0.01 至0.1％的S和0.0001至0.005％的Ca。 本发明提供了一种基于该非热处理钢用于软氮化的机械部件，其进一步提高了柔软氮化甚至省略热精炼后的高疲劳强度和优异的弯曲矫直性能。