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1. 发明专利

JP2013091839A Facility and method for manufacturing steel sheet 有权
标题翻译：制造钢板的设备和方法
公开(公告)号：JP2013091839A
公开(公告)日：2013-05-16
申请号：JP2011236077
申请日：2011-10-27
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： YONEZU KEITA , FURUTO AKIRA
IPC分类号： C21D9/56 , C21D1/70 , C21D9/46 , C22C38/00 , C22C38/04
摘要： PROBLEM TO BE SOLVED: To provide a facility and method of manufacturing a steel sheet capable of suppressing the generation of a pattern-like defect on a surface of a steel strip.SOLUTION: The facility of manufacturing the steel sheet includes: a wringer roll 2 that removes moisture from the surface of conveyed steel strip C; a dryer 4 that is disposed more downstream in the conveyance direction of the steel strip C than the wringer roll 2, and dries the surface of steel strip C on the inlet side of a continuous annealing furnace; and a spray facility 6 that is disposed between the wringer roll 2 and the dryer 4, and atomizes cooling water mist to the surface of steel strip C.
摘要翻译：要解决的问题：提供能够抑制在钢带表面上产生图案状缺陷的钢板的设备和方法。解决方案：制造钢板的设备包括：从输送钢带C的表面除去水分的绞拧辊2; 设置在钢带C的输送方向比卷取辊2更靠近下游的干燥机4，在连续退火炉的入口侧使钢带C的表面变干; 以及设置在绞拧辊2和干燥器4之间的喷雾装置6，并将冷却水雾雾化到钢带C的表面。（C）2013，JPO＆INPIT

2. 发明专利

JP2011047042A Process for production of high-strength cold-rolled steel sheet having excellent chemical conversion processability 有权
标题翻译：生产具有优异化学转化加工性能的高强度冷轧钢板的工艺
公开(公告)号：JP2011047042A
公开(公告)日：2011-03-10
申请号：JP2010166124
申请日：2010-07-23
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： HIRASAWA JUNICHIRO , YOSHIMI NAOTO , NAKAMARU HIROKI , HASEGAWA KOHEI , TSURUMARU HIDEYUKI , YONEZU KEITA , TAKAHASHI HIDEYUKI , SASAKI SHIGETO
IPC分类号： C21D9/46 , C21D1/76 , C22C38/00 , C22C38/06 , C22C38/58
CPC分类号： C21D8/0236 , C21D1/74 , C21D6/008 , C21D8/0273 , C21D8/0457 , C21D9/46 , C21D9/48 , C21D9/561 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06
摘要： PROBLEM TO BE SOLVED: To provide a process for producing an Si-rich cold-rolled steel sheet having good chemical conversion processability without so controlling as to increase the dew point in the reductive atmosphere or the hydrogen partial pressure in water vapor in a soaking pit even when Si is contained in an amount of 0.6% or more. SOLUTION: In a method of continuously annealing a cold-rolled steel sheet comprising, by mass, 0.05-0.3% C, 0.6-3.0% Si, 1.0-3.0% Mn, 0.1% or less P, 0.02% or less S, 0.01-1% Al, and 0.01% or less N, with the balance Fe with inevitable impurities, the steel sheet is heated in a furnace using an oxidative burner until the temperature of the steel sheet reaches 700°C or higher, the heated steel sheet is isothermally annealed in a furnace having a reductive atmosphere at 750-900°C, and the annealed steel sheet is cooled at an average cooling rate of 50°C/s or more in a temperature range from 500°C to 100°C. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决的问题：提供一种具有良好化学转化加工性能的富Si冷轧钢板的制造方法，而不进行控制以增加还原性气氛中的露点或水蒸气中的氢分压即使含有0.6％以上的Si，也是均匀的浸渍槽。解决方案：一种冷轧钢板的连续退火方法，其特征在于，含有0.05〜0.3％的C，0.6〜3.0％的Si，1.0〜3.0％的Mn，0.1％以下的P，0.02％以下 S，0.01〜1％的Al，0.01％以下的N，余量为Fe的不可避免的杂质，使用氧化燃烧器在炉内加热钢板直至钢板的温度达到700℃以上将加热后的钢板在750-900℃的还原气氛的炉中进行等温退火，退火后的钢板在500℃〜100℃的温度范围内以50℃/ s以上的平均冷却速度进行冷却 C。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2012036437A Method for manufacturing steel sheet 有权
标题翻译：制造钢板的方法
公开(公告)号：JP2012036437A
公开(公告)日：2012-02-23
申请号：JP2010176879
申请日：2010-08-06
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： SASAKI SHIGETO , TAKAHASHI HIDEYUKI , HIRASAWA JUNICHIRO , TSURUMARU HIDEYUKI , YONEZU KEITA , OTSUKA SHINJI
IPC分类号： C21D9/56 , C21D1/52 , C21D1/76 , C22C38/00 , C22C38/02 , C23C8/14
摘要： PROBLEM TO BE SOLVED: To manufacture a steel sheet containing 0.2 mass% or more Si and exhibiting excellent chemical conversion treatment properties throughout its length and width in an inexpensive manner.SOLUTION: When continuously annealing a steel sheet, three or more heating zones each equipped with a direct heating burner group are provided along a sheet passing direction in a direct heating furnace, wherein the steel sheet is heated to 400-600°C at an air ratio of the direct heating burner being 0.60-0.95 in one or more heating zones (A) on the most upstream side, the steel sheet is heated to 600-750°C at an air ratio of the direct heating burner being 1.05-1.25 in one or more heating zones (B) downstream therefrom, and the steel sheet is heated to 650-800°C at an air ratio of the direct heating burner being 0.60-0.95 in one ore more heating zones (C) on the most downstream side.
摘要翻译：要解决的问题：制造含有0.2质量％以上的Si的钢板，并且在其长度和宽度上以廉价的方式表现出优异的化学转化处理性能。解决方案：在连续退火钢板时，在直接加热炉中沿片材通过方向设置每个配有直接加热燃烧器组的三个或更多个加热区，其中将钢板加热至400-600℃ 在直接加热燃烧器的最上游侧的一个或多个加热区域（A）中，直接加热燃烧器的空气比为0.60-0.95，钢板以直接加热燃烧器的空气比为1.05加热至600-750℃ -1.25，在一个或多个加热区（B）的下游，将钢板在直接加热燃烧器的空气比为0.60-0.95的一个加热区（C）中加热到650-800℃ 大多数下游方版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2011006753A Method and facility for manufacturing steel sheet 有权
标题翻译：制造钢板的方法和设备
公开(公告)号：JP2011006753A
公开(公告)日：2011-01-13
申请号：JP2009152839
申请日：2009-06-26
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： SASAKI SHIGETO , TAKAHASHI HIDEYUKI , HIRASAWA JUNICHIRO , TSURUMARU HIDEYUKI , YONEZU KEITA
IPC分类号： C21D9/52 , C21D1/52 , C21D1/76 , C21D9/56
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a steel sheet by which excellent chemical convertibility can be obtained over the whole length and the whole width of the steel sheet.SOLUTION: The method for manufacturing the steel sheet in a continuous annealing facility includes a combustion-type heating furnace and a successive annealing furnace. In the combustion-type heating furnace, the steel sheet is heated while blowing gas having oxidizing action in addition of combustion gas, thereafter the steel sheet is annealed in the annealing furnace. Even a high-strength cold-rolled steel containing Si can sufficiently secure the oxidizing quantity, and even in the non-ordinary part when changing the size of the steel sheet, the oxidized quantity can sufficiently be secured and the uniform inner oxidized layer can be generated, thereby manufacturing the steel sheet excellent in the chemical convertibility over the whole length and the whole width.
摘要翻译：要解决的问题：提供一种在钢板的整个长度和整个宽度上可以获得优异的化学可转换性的钢板的制造方法。解决方案：连续退火设备中的钢板的制造方法包括燃烧型加热炉和连续退火炉。在燃烧式加热炉中，在吹入除燃烧气体之外具有氧化作用的气体的同时对钢板进行加热，然后在退火炉中对钢板进行退火。即使含有Si的高强度冷轧钢也能够充分确保氧化量，即使在改变钢板尺寸的情况下，在非普通部中也能充分确保氧化量，均匀的内部氧化层可以从而制造整个长度和整个宽度上的化学可转换性优异的钢板。

5. 发明专利

JP2014159021A Coating pan for roll coater type coating apparatus 有权
标题翻译：涂层辊涂辊式涂装装置
公开(公告)号：JP2014159021A
公开(公告)日：2014-09-04
申请号：JP2013031606
申请日：2013-02-21
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： YONEZU KEITA , MATSUMURA KAZUHIRO
IPC分类号： B05C1/08
摘要： PROBLEM TO BE SOLVED: To provide a coating pan for a roll coater type coating apparatus that can suppress generation of a coating material stagnation part within the coating pan and can effectively prevent generation of minute foreign matters caused by generation of air bubbles.SOLUTION: A coating pan for a roll coater type coating apparatus includes: a front partition plate that surrounds a front region of a pickup roll by side face plates extended forwards in the vicinity of both side faces of the pickup roll and a front face plate extended in parallel with the pickup roll before the pickup roll and having an opening on the lower side and that is installed at height higher than a coating material liquid level; a coating material replenishment port installed on the front side and one side in the width direction of the coating pan; a coating material discharge port that is installed on the front side and the other side in the width direction of the coating pan at the same height as that of the coating material liquid level; and a discharge port partition plate that is extended from the coating material discharge port toward the side wall of the coating pan and toward the front partition plate and is installed at height higher than that of the coating material liquid level.
摘要翻译：要解决的问题：提供一种能够抑制涂布板内的涂料滞留部的产生的辊涂机型涂布装置的涂布盘，能够有效地防止由气泡的产生引起的微小异物的产生。解决方案：A 用于辊涂机的涂布机包括：前隔板，其通过在拾取辊的两个侧面附近向前延伸的侧面板和与所述拾取辊的两个侧面平行延伸的前面板围绕拾取辊的前部区域拾取辊之前的拾取辊，并且在下侧具有开口，并且安装在高于涂料液位的高度处; 安装在涂布盘的前侧和宽度方向一侧的涂料补充口; 涂料排出口，其以与涂料液面相同的高度安装在涂布盘的宽度方向的前侧和另一侧; 以及排出口隔板，其从涂料排出口朝向涂布盘的侧壁延伸并朝向前隔板延伸，并且安装在高于涂料液位的高度。

6. 发明专利

JP2010111910A Method for manufacturing high-strength cold-rolled steel sheet reduced in strength fluctuation 有权
标题翻译：在强度波动下制造高强度冷轧钢板的方法
公开(公告)号：JP2010111910A
公开(公告)日：2010-05-20
申请号：JP2008284950
申请日：2008-11-06
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： YONEZU KEITA , KAWAMURA KENJI
IPC分类号： C21D9/46 , C22C38/00 , C22C38/12
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a high-strength cold-rolled steel sheet having the tensile strength of ≥980 MPa and capable of reducing the strength fluctuation even when the steel sheet is subjected to the quenching such as water hardening in a cooling process during the annealing without adding a large amount of alloy elements such as Al and Si. SOLUTION: In the method for manufacturing the high-strength cold-rolled steel sheet, the steel having the composition consisting of, by mass, 0.14-0.16% C, 0.35-0.50% Si, 1.45-1.70% Mn, ≤0.02% P, ≤0.002% S, 0.01-0.02% Nb, and the balance Fe with inevitable impurities is subjected to the annealing under the condition that the steel sheet is kept at the annealing temperature of 760-820°C for 10-1,000s in a continuous annealing line after the hot rolling and the cold rolling, cooled to 650-700°C at the average cooling rate of ≤20°C/s, and further cooled at the average cooling rate of ≥500°C/s, and tempered at 150-300°C. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：为了提供一种抗拉强度≥980MPa的高强度冷轧钢板的制造方法，即使钢板经受淬火，例如退火时的冷却过程中的水硬化，而不添加大量的合金元素如Al和Si。解决方案：在高强度冷轧钢板的制造方法中，具有以质量计含有0.14-0.16％C，0.35-0.50％Si，1.45-1.70％Mn，≤ 0.02％P，≤0.002％S，0.01-0.02％Nb，余量为不可避免的杂质的Fe进行退火，条件是将钢板的退火温度保持在760-820℃10-1,000 在热轧和冷轧后的连续退火线中，以≤20℃/ s的平均冷却速率冷却至650-700℃，并以≥500℃/ s的平均冷却速度进一步冷却，并在150-300℃下回火。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2010053446A Method for producing high silicon cold-rolled steel sheet excellent in chemical convertibility 有权
标题翻译：生产化学可变性优良的高硅钢冷轧钢板的方法
公开(公告)号：JP2010053446A
公开(公告)日：2010-03-11
申请号：JP2009176116
申请日：2009-07-29
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： HIRASAWA JUNICHIRO , YOSHIMI NAOTO , NAKAMARU HIROKI , FUJITA SAKAE , TSURUMARU HIDEYUKI , YONEZU KEITA , TAKAHASHI HIDEYUKI , SASAKI SHIGETO , HASEGAWA KOHEI , NAGANO HIDEKI
IPC分类号： C21D9/46 , C21D1/52 , C21D1/74 , C21D9/56 , C22C38/00 , C22C38/06 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a high Si cold-rolled steel sheet having excellent chemical convertibility even when the content of Si is ≥0.6%.
SOLUTION: When the cold-rolled steel sheet, which has composition composed, by mass%, of 0.05-0.3% C, 0.6-3% Si, 1.0-3.0% Mn, ≤0.1% P, ≤0.05% S, 0.01-1% Al, ≤0.01% N and the balance Fe with inevitable impurities, is continuously annealed, the steel sheet is heated by using a direct-firing burner of ≥0.95 in air ratio at least at ≥550°C in the steel sheet temperature at the temperature-raising time, and heated up to >650°C in the steel sheet temperature, and then is subjected to a soaking-heat annealing in a furnace under gaseous atmospheric state of 1-10 vol.% H
2 and the balance N
2 at a dew point ≤-25°C.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：待解决的问题：提供即使当Si含量≥0.6％时也具有优异的化学转化率的高Si冷轧钢板的制造方法。解决方案：当以质量％计含有0.05-0.3％C，0.6-3％Si，1.0-3.0％Mn，≤0.1％P，≤0.05％S的组成的冷轧钢板，0.01-1％Al，≤0.01％N，余量为Fe和不可避免的杂质，连续退火，钢板通过使用空气比≥0.95的直接燃烧式燃烧器在至少≥550℃下加热钢板温度在升温时间，并且在钢板温度下加热至> 650℃，然后在1-10体积％H气氛的大气气氛下在炉中进行均热热退火， SB> 2 ，余量为N 2 ，露点为-25℃。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2007246990A Equipment and method for cooling cold-rolled steel plate 有权
标题翻译：冷轧钢板的设备和方法
公开(公告)号：JP2007246990A
公开(公告)日：2007-09-27
申请号：JP2006072166
申请日：2006-03-16
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： YONEZU KEITA , OTA MASAJI , SUEFUJI NORIAKI
IPC分类号： C21D9/573
摘要： PROBLEM TO BE SOLVED: To provide a cold-rolled steel plate cooling equipment capable of effectively suppressing generation of stain even when the thickness of the steel plate is 2-3 mm, and the temperature of an advancing plate into the cooling equipment exceeds, for example, 100°C. SOLUTION: The cold-rolled steel plate cooling equipment provided on a continuous annealing furnace outlet side comprises a mist spraying means 5 for spraying cooling water in a mist state on a surface of a steel plate, and a water-cooling tank 3 which is provided on the downstream side of the mist spraying means 5 for immersing a liquid jetting means 4 for jetting cooling water on the surface of the steel plate and/or the steel plate therein. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种即使当钢板的厚度为2-3mm时能够有效地抑制污斑产生的冷轧钢板冷却设备，以及进入冷却设备的前进板的温度超过例如100℃。解决方案：设置在连续退火炉出口侧的冷轧钢板冷却设备包括用于在钢板表面喷雾雾状冷却水的喷雾装置5和水冷却槽3 其设置在雾喷射装置5的下游侧，用于将用于将冷却水喷射的液体喷射装置4浸入钢板和/或钢板的表面上。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2007092154A Method for manufacturing ultrahigh-strength cold-rolled steel sheet superior in formability 有权
标题翻译：制造超强度冷轧钢板的可行性方法
公开(公告)号：JP2007092154A
公开(公告)日：2007-04-12
申请号：JP2005286118
申请日：2005-09-30
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： KAWABE HIDENAO , TANAKA YASUSHI , SAWADA YOSHIHISA , YONEZU KEITA
IPC分类号： C21D9/46 , B21B1/22 , B21B1/26 , B21B3/00 , C22C38/00 , C22C38/06 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing an ultrahigh-strength cold-rolled steel sheet superior in formability so as to control a fluctuation range of yield strength (yield point) YP among steel sheets to 180 MPa or lower.
SOLUTION: Base materials for the steel sheet are smelted so as to have the same target composition containing C, Si, Mn, Al and N adjusted into a proper range, and have such fluctuation amounts of C, Si and Mn contents as to respectively satisfy 0 to 0.02% for ΔC, 0 to 0.2% for ΔSi, and 0 to 0.2% for ΔMn. A plurality of the cold-rolled steel sheets are manufactured by the sequential steps of: hot-rolling the above base materials; winding them up at 400 to 700°C; pickling them; cold-rolling them; continuously annealing them while adjusting the fluctuation range of temperatures of the steel sheets when water cooling is started to 0 to 10°C; heat-treating them at 100 to 500°C; and a temper-rolling them at a rolling reduction to 0.05 to 1.6%, of which the fluctuation range is adjusted to 0 to 0.4%. Thereby, the ultrahigh-strength cold-rolled steel sheets acquire the yield strength of which the fluctuation amount among the steel sheets is 180 MPa or lower, and superior formability.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种制造成型性优异的超高强度冷轧钢板的方法，以将钢板的屈服强度（屈服点）YP的波动范围控制在180MPa以下。
解决方案：将钢板的基材熔炼成具有相同的含有C，Si，Mn，Al和N的目标组成，其调整为适当的范围，并且具有如下变化量的C，Si和Mn含量：分别满足0〜0.02％的ΔC，0〜0.2％的ΔSi，0〜0.2％的ΔMn。多个冷轧钢板通过以下顺序制造：热轧上述基材; 在400〜700℃下卷绕; 酸洗冷轧他们在水冷开始至0〜10℃的同时，调整钢板的温度波动范围，连续退火; 在100〜500℃下进行热处理; 将轧制压下量调整为0.05〜1.6％，其变动范围为0〜0.4％。由此，超高强度冷轧钢板获得钢板的变形量为180MPa以下的屈服强度，成形性优异。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2013253322A METHOD FOR PRODUCING HIGH-SILICON COLD-ROLLED STEEL SHEET EXCELLENT IN CHEMICAL CONVERTIBILITY 审中-公开
公开(公告)号：JP2013253322A
公开(公告)日：2013-12-19
申请号：JP2013148381
申请日：2013-07-17
申请人： JFE STEEL CORP
发明人： HIRASAWA JUNICHIRO , YOSHIMI NAOTO , NAKAMARU HIROKI , FUJITA SAKAE , TSURUMARU HIDEYUKI , YONEZU KEITA , TAKAHASHI HIDEYUKI , SASAKI SHIGETO , HASEGAWA KOHEI , NAGANO HIDEKI
IPC分类号： C21D9/46 , C22C38/00 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a high Si cold-rolled steel sheet having good chemical convertibility, even containing Si as 0.6% or higher.SOLUTION: A cold-rolled steel sheet has the component-composition composed by mass of 0.05-0.3% C, 0.56-3% Si, 1.0-3.0% Mn, ≤0.1% P, ≤0.05% S, 0.01-1% Al, ≤0.01% N, 0.0003-0.005% B and the balance Fe with inevitable impurities. When the cold-rolled steel sheet is continuously annealed, the steel sheet is heated by using a direct-firing burner of ≥0.95 in air-ratio at least 550°C or higher of the steel sheet temperature at the temperature-raising time, and then is heated up to 750°C or higher of the steel sheet temperature by using the direct-firing burner having an air ratio of ≤0.89. Thereafter, the steel sheet is soak-annealed in a furnace under gaseous atmospheric state of ((1-10 vol% H)+(balance Ngas)) at a dew-point of -25°C or lower.

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