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1. 发明专利

JP2011012315A NON-TEMPERED HIGH TENSILE STRENGTH THICK STEEL PLATE HAVING YIELD STRENGTH OF 885 MPa OR MORE, AND METHOD FOR PRODUCING THE SAME 有权
标题翻译： 885MPa以上的非温度高张力强度的厚钢板及其制造方法
公开(公告)号：JP2011012315A
公开(公告)日：2011-01-20
申请号：JP2009158126
申请日：2009-07-02
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： GOTO MICHINORI , TSUZUKI TAKESHI , KAWABATA NORIMASA
IPC分类号： C22C38/00 , C21D8/02 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a non-tempered high tensile strength thick steel plate having a yield strength of ≥885 MPa, to which Ni and Mo are not added, whose alloy cost is low, and in which a tempering stage is omitted in an off line, and to provide a method for producing the same.SOLUTION: The thick steel plate is composed of a steel containing 0.08 to 0.11% C, 0.03 to 0.20% Si, 1.85 to 2.5% Mn, ≤0.012% P, ≤0.005% S, 0.003 to 0.05% Nb, 0.003 to 0.030% Ti, 0.0003 to 0.0030% B, 0.01 to 0.1% Al, ≤0.0050% N, and the balance Fe with inevitable impurities, and has a microstructure being a mixed structure composed of martensite and lower bainite, and in which the total area ratio of both the structures is ≥95%, and the steel plate is produced by regulating cooling conditions after hot rolling.
摘要翻译：要解决的问题：为了提供合金成本低的屈服强度≥885MPa的不加入Ni和Mo的非回火高强度厚钢板，其中省略回火阶段并且提供其制造方法。解决方案：厚钢板由含有0.08〜0.11％C，0.03〜0.20％Si，1.85〜2.5％Mn，≤0.012％P，≤ 0.005％S，0.003〜0.05％Nb，0.003〜0.030％Ti，0.0003〜0.0030％B，0.01〜0.1％Al，≤0.0050％N，余量为Fe与不可避免的杂质，组成为混合结构的马氏体和下贝氏体，其中两种结构的总面积比为≥95％，并且通过调节热轧后的冷却条件来生产钢板。

2. 发明专利

JP2006212671A METHOD FOR PREVENTING SURFACE FLAW AT THE TIME OF ROLLING IN Ni-CONTAINING STEEL 有权
标题翻译：用于在含镍钢中滚压时防止表面波的方法
公开(公告)号：JP2006212671A
公开(公告)日：2006-08-17
申请号：JP2005028441
申请日：2005-02-04
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： HOSHINO MANABU , SAITO NAOKI , UEJIMA YOSHIYUKI , KAWABATA NORIMASA
IPC分类号： B21B1/02 , B21B3/00 , C21D8/02 , C22C38/00 , C22C38/08 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a method for preventing the generation of surface flaws generated at the time of rolling in an Ni-containing steel.
SOLUTION: In the method, the surface of an Ni-containing steel comprising 1 to 10% Ni is mechanical ground, so as to remove an intergranular oxidized part and a cracked part in the surface, thereafter, the depth d
0 and the steepness parameter θ of the recessed part in the surface of the slab after the surface grinding are allowed to satisfy formula (1), and then, the slab is coated with an oxidation preventive, is heated at 1,000 to 1,180°C, and is rolled. The formula (1) is d
0 ×a×cos
2 θ/R
1 ×10
3 ≤0.004×(T-700)×R
1 +40; wherein, a is the depth ratio after the first pass of the rolling in the depth of the recessed part and a=0.3; d
0 is the depth (mm) of the recessed part in the surface of the slab; θ is the steepness parameter (° ) of the recessed part in the surface of the slab expressed by formula (2); R
1 is the draft ratio on and after the first pass of the rolling and satisfies the sheet thickness of the steel sheet after the first pass of the rolling/the sheet thickness of the steel sheet after the completion of the rolling; and T is the heating temperature (°C). The formula (2) is tanθ=L
0 /d
0 ; wherein, L
0 is the representative length (mm) in the steepness of the recessed part in the surface of the slab.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种防止在含Ni钢中轧制时产生的表面缺陷的方法。解决方案：在该方法中，包含1至10％Ni的含Ni钢的表面是机械研磨的，以除去表面中的晶间氧化部分和裂纹部分，其后深度d 0 ，并且表面研磨后的板坯表面中的凹部的陡度参数θ被允许满足式（1），然后将板坯涂覆有防氧化剂，加热至1,000 至1180℃，并被轧制。公式（1）为d 0 ×a×cos 2 θ/ R 1 ×10 3 ≤0.004 ×（T-700）×R 1 40; 其中，a是在凹陷部分的深度中第一次滚动之后的深度比，a = 0.3; d 0 是板坯表面的凹部的深度（mm） θ是由公式（2）表示的板坯表面凹陷部分的陡度参数（°）; R＆lt; SB＆gt; 1＆lt; / SB＆gt;是在轧制的第一次通过之后和之后的牵伸比，并且在钢板的第一次通过/钢板的厚度完成之后满足钢板的板厚滚动; T为加热温度（℃）。式（2）是tanθ= L 0 / SB> / d 0 ; 其中，L 0 是在板坯的表面中的凹部的陡度中的代表长度（mm）。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

AU2018430608B2 Steel plate and method of manufacturing the same 未知
公开(公告)号：AU2018430608B2
公开(公告)日：2021-02-04
申请号：AU2018430608
申请日：2018-08-20
申请人： NIPPON STEEL CORP
发明人： TAKAMINE FUMITOSHI , FURUYA HITOSHI , KAWABATA NORIMASA , MIYAKE TAKUMI
IPC分类号： C21D8/02
摘要： (12) ]i 8$ - t'~ T] 40 ;1 J IT d- 51 (19)tl- [ J r i i ( (10) (43) P9Wm> PIHWO 00 398A 2020*2f 27H(27.02.2020) WO 2020/039485 A1 (51) ;'t &I-: -I-IN(FURUYA Hitoshi); T1008071 ANVF C22C 38/00 (2006.01) C22C38/54(2006.01) It F9 E: A ) T F1 6 * 1 -q V H 1; 4 C21D 8/02 (2006.01) AgToh Tokyo (JP). )II ai #IIE(KAWABATA (21) 2 PCT/JP2018/030676 Norimasa); T1008071 A T :7 It flJ 0) TF1 6*1 -q ftH ]A iT Tokyo (22)IiH RtJ : 2018l8) A20H(20.08.2018) (JP)_ -- A tf (MIYAKE Takumi); ~T1008071 (26) pf 0 l: H $H IMA 4 $1 Tokyo (JP). (71)t AX:H a 4% (NIPPON STEEL (74) tiXA : 44 | At, (TANAI Sumio et al.); CORPORATION) [JP/JP]; T1008071 WA#+ T 1006620 W 32TT S :7 I E T IF E Ao T H 6 * 1 - Tokyo (P). 9 2 Tokyo (P). (81)tt(0t\IR) 0t0i t (72)#HB3#:ih d$ 5k (TAKAMINE Fumitoshi); t A GMT U ~i~1008071 ~~ ~ ~ 9 fibST t EM TE6) : AE, AG, AL, AM, AO, AT, AU, AZ, T1008071 3 0:7 I 4 $X:A0 T 6 ( - BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, 1 -q ft E 21tW-4PTok yoJP). tr (54) Title: STEEL SHEET AND PRODUCTION METHOD THEREFOR (54) RME P 0) -: ]t4)1 J t OYiWAtm - 13 12 1mm . . . .5mm co - 5rnhf 1mm 12 13 IC(57) Abstract: One embodiment of the present application pertains to a steel sheet having a chemical composition that falls within a prescribed range, wherein: the central part of the steel sheet in the thickness direction contains martensite and bainite in a total area fraction of at least 99%; in the central part in the sheet thickness direction, the average value of en. 4 prior austenite grains is less than 80 pm, Ceq equals 0.750%-0.800%, Al x N is at least 2.0 x 10- , Ti/N is at most 3.4, and 4 x f > 9.00 is satisfied; in the central part in the sheet thickness direction, the three point average of a C-direction Charpy test is not less than 47 J at -20°C; and a surface layer W O 2020/039485 A 1 ||||||||||||||||||||||||||||||||||1|1||||||||||||||||||||||||||||||||||||| CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, Fl, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) L\(0 pU) & Jgg Jg A fib): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), .a-5 7 (AM, AZ, BY, KG, KZ, RU, TJ, TM), - ' (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, Fl, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). and the sheet-thickness-direction central part have an HB hardness of at least 350 and a sheet thickness of over 200 nun. t /+-f 4 R &y /1Z^t f 4 ) V111 -6--t [MAR% *- 9 9 % L), - T 'J 4 M FP Ij L t, I El tJ 7 t -f 0 $), CeqbC0. 750-~0. 800%T& '), AIX N bC 2. O X 1 0 L'.),L C ), T i / N bC 3. 4.0L' -F -b, 4 X f 9. 0 0 4B4 6a&5 Tff-, E~ rPj 8: t6 - 2 0°'C T 0) C 2rdJ np J E° - 0 3 15itbC 4 7 J L),T ), -eb Y -rB 1-0 So& h f-FPb N) kb H B T 3 5 0 L),kLT M,b $ bM 2 0 0 m m M T 76.o

4. 发明专利

AU2018287603B2 Steel plate 未知
公开(公告)号：AU2018287603B2
公开(公告)日：2019-07-11
申请号：AU2018287603
申请日：2018-02-27
申请人： NIPPON STEEL CORP
发明人： SAWAMURA MITSURU , SAITOH NAOKI , TAKAHASHI YASUNORI , MIYAKE TAKUMI , KAWABATA NORIMASA , TSUZUKI TAKESHI
IPC分类号： C22C38/00 , C21D8/02 , C22C38/38 , C22C38/58
摘要： A steel sheet according to one embodiment has a prescribed chemical composition. The indicator Q determined from formula (1) is 0.00 or more. The carbon equivalent amount Ceq (%) determined from formula (2) is less than 0.800%. The ratio of the difference between the surface hardness and the hardness in the center in the sheet thickness direction relative to the surface hardness at room temperature is 15.0% or less. The surface hardness at room temperature is a Vickers hardness of 400 or more, and the sheet thickness is 40 mm or more. Formula (1): Q=0.18-1.3(logT)+0.75(2.7×[C]+[Mn]+0.45×[Ni]+0.8×[Cr]+2×[Mo]) Formula (2): Ceq(%)=[C]+[Mn]/6+[Si]/24+[Ni]/40+[Cr]/5+[Mo]/4+[V]/4

5. 发明专利

AU2018430608A1 Steel plate and method of manufacturing the same 未知
公开(公告)号：AU2018430608A1
公开(公告)日：2020-03-05
申请号：AU2018430608
申请日：2018-08-20
申请人： NIPPON STEEL CORP
发明人： TAKAMINE FUMITOSHI , FURUYA HITOSHI , KAWABATA NORIMASA , MIYAKE TAKUMI
IPC分类号： C21D8/02
摘要： 7 5 0-O0. 8O0O0%T,,U) A I xN t' 2. 0 X 1 041 kLC L JU T i /N/J' 3. 4 Ik FT,,U) 4 xf R!!9. 0 0 f.-*V 'CT7ODCLY V3 {4Y JIk L ,'b) H ,350Ik- , j t 2O0m0km m

6. 发明专利

AU2018287603A1 Steel sheet 未知
公开(公告)号：AU2018287603A1
公开(公告)日：2019-05-16
申请号：AU2018287603
申请日：2018-02-27
申请人： NIPPON STEEL CORP
发明人： SAWAMURA MITSURU , SAITOH NAOKI , TAKAHASHI YASUNORI , MIYAKE TAKUMI , KAWABATA NORIMASA , TSUZUKI TAKESHI
IPC分类号： C22C38/00 , C21D8/02 , C22C38/38 , C22C38/58
摘要： A steel sheet according to one embodiment has a prescribed chemical composition. The indicator Q determined from formula (1) is 0.00 or more. The carbon equivalent amount Ceq (%) determined from formula (2) is less than 0.800%. The ratio of the difference between the surface hardness and the hardness in the center in the sheet thickness direction relative to the surface hardness at room temperature is 15.0% or less. The surface hardness at room temperature is a Vickers hardness of 400 or more, and the sheet thickness is 40 mm or more. Formula (1): Q=0.18-1.3(logT)+0.75(2.7×[C]+[Mn]+0.45×[Ni]+0.8×[Cr]+2×[Mo]) Formula (2): Ceq(%)=[C]+[Mn]/6+[Si]/24+[Ni]/40+[Cr]/5+[Mo]/4+[V]/4

7. 发明专利

BR112018071948B1 Chapa de aço de alta resistência 未知
公开(公告)号：BR112018071948B1
公开(公告)日：2022-03-03
申请号：BR112018071948
申请日：2016-07-29
申请人： NIPPON STEEL & SUMITOMO METAL CORP , NIPPON STEEL CORP
发明人： YOSHIMURA MASAHIDE , MINAGAWA MASANORI , KAWABATA NORIMASA , TSUZUKI TAKESHI
IPC分类号： C21D8/02 , C22C38/00 , C22C38/14 , C22C38/58
摘要： a presente invenção refere-se a uma placa de aço de alta resistência que tem uma composição química predeterminada e compreende um ou mais tipos de martensita e bainita nos quais di é de 2,0 a 7,8, o pcm é 0,189% ou maior, e a estrutura metálica é 99% ou mais em razão de área total. a razão de aspecto de grãos de austenita anteriores é 2,0 ou maior, a fração numérica de cementita na qual o comprimento na direção de eixo geométrico longo é de 1,0 µm ou maior em relação à cementita, na qual o comprimento na direção de eixo geométrico longo é de 0,1 µm ou maior é 5% ou menos, sendo que a espessura de placa é 4,5 mm a 20 mm, o limite de elasticidade é 885 mpa ou maior, a resistência à tração é 950 mpa ou maior, o alongamento em ruptura é 12% ou maior e a energia absorvida de charpy em - 20°c é 59 j/cm2 ou maior.

8. 发明专利

JPH11254583A RESIN SANDWICH-TYPE VIBRATION DAMPING STEEL PLATE WITH OUTSTANDING WELDING APPLICABILITY 失效
公开(公告)号：JPH11254583A
公开(公告)日：1999-09-21
申请号：JP7123498
申请日：1998-03-06
申请人： NIPPON STEEL CORP
发明人： KUMAGAI TATSUYA , NAGAO TOSHIMICHI , KAWABATA NORIMASA
IPC分类号： B32B15/08
摘要： PROBLEM TO BE SOLVED: To improve the welding applicability of a resin sandwich-type vibration damping steel plate by locally filling a space between a front and a back steel plate with a specific thickness with a resin of specific thickness and arranging an insulator of specific size which shows a specified fusing temperature and also heat resistance between the front and the back steel plate outside at least, the resin on one of the sides of each of the steel plates. SOLUTION: A 0.05-5 mm thick resin is locally packed in a space between a front and a back steel plate 3a, 3b with a thickness of 1.6 mm or more and further, an insulator 1 with a width of 10 mm or more which is made of a heat-resistant material having a melt or decomposition temperature of 330 deg.C or more is packed in a space between the front and the back steel plate 3a, 3b outside the resin 2 on at least, one side or more of the four sides of each of the steel plates 3a, 3b. In addition, a void 6a of 10 mm or more is present outside each of the insulators 1 and the total widths of the voids 6a with the insulator 1 on one of the sides of each of the steel plates 3a, 3b are equivalent to 10% or less of the total length of the corresponding side of the four circumferential sides of each of the steel plates 3a, 3b. The heat-resistant material whose desired 10-point average roughness Rz of the front and the back steel plate 3a, 3b coming into contact with the resin 2 is 20 μm, is for example, a glass fiber.

9. 发明专利

JPH0960422A MULTI-LAYER METAL PLATE EXCELLENT IN GAS CUTTING DURABILITY AND CASH PROTECTING STRUCTURE COMPOSED OF THE METAL PLATE 失效
公开(公告)号：JPH0960422A
公开(公告)日：1997-03-04
申请号：JP21354495
申请日：1995-08-22
申请人： NIPPON STEEL CORP
发明人： TSUZUKI TAKESHI , IMAHARU TOMOAKI , KAWABATA NORIMASA , IGARI SHIGENORI
IPC分类号： E05G1/024 , B32B15/01
摘要： PROBLEM TO BE SOLVED: To prevent cash from being stolen by covering a cash keeping house with a multi-layer metal plate having more than two layers composed of a surface layer made of stainless steel plate and a gas turbulence hastening layer which has prescribed thickness and is set between the layers for making gas cutting impossible. SOLUTION: A multi-layer metal plate 1 is formed by laminating a stainless steel plate 1a, a gas turbulence hastening layer 2 and common steel plate 1b. In addition, as occasion demands, the gas turbulence hastening layer is set between the common steel plates 1b, and aluminum plates are laminated to form the multi-layer metal plate having two or more layers. The gas turbulence hastening layer 2 is formed of material to display action to disturb a gas flow in the case of gas cutting of natural resin, synthetic resin and rubber or the like, and its thickness is set up as 0.1-1.5mm. A cash keeping house or the like for a cash automatic paying machine and a vending machine is covered with the multi-layer metal plate 1, and even when an offender intends to gas-cut the keeping house, it can not be cut in a short time. Thus the theft of the cash can be prevented.

10. 发明专利

JPH101745A ATMOSPHERIC CORROSION RESISTING STEEL EXCELLENT IN VERY LARGE HEAT INPUT WELDABILITY 失效
公开(公告)号：JPH101745A
公开(公告)日：1998-01-06
申请号：JP17068596
申请日：1996-06-11
申请人： NIPPON STEEL CORP
发明人： TSUZUKI TAKESHI , KAWABATA NORIMASA , IMAHARU TOMOAKI
IPC分类号： C22C38/00 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide an atmospheric corrosion resisting steel capable of very large heat input welding for the purpose of welding performance cost reduction. SOLUTION: This atmospheric corrosion resisting steel, excellent in very large heat input weldability, has a composition consisting of, by weight, 0.03-0.10% C, 0.15-0.40% Si, 0.5-1.6% Mn, =2 elements among Nb, B, Mo, and V as strength improving element group.

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