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公开(公告)号：EP3725908A1
公开(公告)日：2020-10-21
申请号：EP20178527.6
申请日：2012-12-11
发明人： YANG, Guohua , LIU, Xiandong , LI, Guobao , YANG, Yongjie , HU, Zhuochao , HEI, Hongxu , ZHANG, Jun , SU, Dejun , SUN, Huande , WU, Meihong
IPC分类号： C22C38/02 , C21D8/12 , C21D3/04 , C21D6/00 , C21D9/46 , C23C8/02 , C23C8/26 , C22C38/00 , C22C38/06 , H01F1/147 , H01F1/16 , H01F1/18 , H01F41/02 , H01F41/32 , C22C38/04 , C21D1/26 , C23C8/80
摘要： The invention discloses an oriented silicon steel with excellent magnetic properties and a manufacturing method thereof. The present invention obtains the oriented silicon steel with excellent magnetic properties by controlling the area ratio of small crystal grains of D
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公开(公告)号：EP4276212A1
公开(公告)日：2023-11-15
申请号：EP22762550.6
申请日：2022-03-02
发明人： ZHANG, Jun , ZHAO, Sixin , GAO, Jiaqiang , WANG, Wei
摘要： Disclosed is a cold forged gear steel. In addition to Fe and inevitable impurities, the cold forged gear steel further comprises the following chemical elements in mass percentage: 0.15-0.17% of C, 0.10-0.20% of Si, 1.0-1.10% of Mn, 0.80-0.90% of Cr and 0.02-0.04% of Al. Correspondingly, further disclosed is a manufacturing method for the cold forged gear steel, comprising the steps of: (1) smelting and casting; (2) heating; (3) forging or rolling; and (4) spheroidizing annealing: heating to and keeping at 750-770 °C, then cooling with a cooling rate of 5-15 °C/h to and keeping at 700-720 °C, cooling with a cooling rate of 3-12 °C/h to and keeping at 660-680 °C, and cooling with a cooling rate of 5-20 °C/h to 500 °C or below, and then tapping and cooling.
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公开(公告)号：EP4089198A1
公开(公告)日：2022-11-16
申请号：EP21761014.6
申请日：2021-02-07
发明人： ZHAO, Sixin , HUANG, Zongze , GAO, Jiaqiang , ZHANG, Jun
摘要： Disclosed are a steel with controlled steel ratio and a manufacturing method therefor. The steel comprises the following components in percentage by mass: C: 0.245-0.365%, Si: 0.10-0.80%, Mn: 0.20-2.00%, P: ≤0.015%, S: ≤0.003%, Cr: 0.20-2.50%, Mo: 0.10-0.90%, Nb: 0-0.08%, Ni: 2.30-4.20%, Cu: 0-0.30%, V: 0.01-0.13%, B: 0-0.0020%, Al: 0.01-0.06%, Ti: 0-0.05%, Ca: ≤0.004%, H: ≤0.0002%, N: ≤0.013%, O: ≤0.0020%, , and the balance of Fe and inevitable impurities, wherein the components satisfy (8.57 ∗ C+1.12 ∗ Ni) ≥ 4.8% and 1.2%≤ (1.08 ∗ Mn+2.13 ∗ Cr) ≤5.6%. The steel has excellent low-temperature impact toughness and aging impact toughness at -20°C and -40°C, a rationally controlled yield ratio, and ultra-high strength, ultra-high toughness, and ultra-high plasticity, which can be used in applications such as offshore platform mooring chains, mechanical structures, and automobiles that require high strength and toughness of the steel.
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公开(公告)号：EP3954799A1
公开(公告)日：2022-02-16
申请号：EP20813182.1
申请日：2020-05-25
发明人： ZHANG, Jun , ZHAO, Sixin , GAO, Jiaqiang , WANG, Wei
摘要： Provided is a steel comprising the following chemical composition in percentage by mass: 0.150-0.250% of C, 0.10-0.50% of Si, 0.60-1.50% of Mn, 0.30-1.20% of Cr, 0.20-0.80% of Mo, 2.00-4.00% of Ni, 0-0.10% of Nb, 0.0010-0.0050% of B, 0-0.12% of V, 0.003-0.06% of Ti, 0.01-0.08% of Al, the balance being Fe and unavoidable impurities. Also provided is a steel bar and a manufacturing method thereof. The steel bar is made from the above steel. The manufacturing method comprises the steps of smelting and casting, heating, forging or rolling, quenching, and tempering.
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5.发明公开METHOD AND DEVICE FOR CONTROLLING FURNACE PRESSURE OF CONTINUOUS ANNEALING FURNACE 审中-公开VERFAHREN UND VORRICHTUNG ZUR REGELUNG DES DRUCKS EINES KONTINUIERLICHENGLÜHOFENS
公开(公告)号：EP2634272A1
公开(公告)日：2013-09-04
申请号：EP11835487.7
申请日：2011-04-14
发明人： LIU, Yongfeng , GU, Huazhong , QIAN, Guoqiang , YIN, Bin , WEN, Dejian , HEI, Hongxu , ZHANG, Jun , HU, Deyang
摘要： A method for controlling furnace pressure of a continuous annealing furnace is disclosed. The method comprises detecting a coal gas flow volume and an air flow volume in each section by use of a coal gas flow volume detector and an air flow volume detector disposed in each section of a continuous annealing furnace, respectively, adding up the coal gas flow volume detected in each section to obtain a total input coal gas flow volume; adding up the air flow volume detected in each section to obtain a total input air flow volume, and calculating a pre-combustion gas pressure in the furnace based on the total input coal gas flow volume and the total input air flow volume; detecting compositions of the coal gas and a ratio of the coal gas to the air by use of a composition detector; detecting a pre-combustion gas temperature in the furnace by use of a thermocouple; predicting post-combustion gas compositions and a total gas volume based on chemical combustion reaction equations and based on the total input coal gas flow volume, the total input air flow volume, the coal gas compositions and the ratio of the coal gas to the air; igniting the coal gas and the air in the furnace; and detecting a post-combustion gas temperature in the furnace by use of a thermocouple; calculating a post-combustion gas pressure in the furnace based on the pre-combustion gas pressure in the furnace, pre-combustion gas temperature in the furnace and the post-combustion gas temperature in the furnace; and calculating an opening degree for an exhaust gas fan based on the pre-combustion gas pressure in the furnace and the post-combustion gas pressure in the furnace and by use of a gas increment pass algorithm, and using the opening degree to control the exhaust gas fan.
摘要翻译： 公开了一种用于控制连续退火炉的炉压的方法。 该方法包括通过使用分别设置在连续退火炉的每个部分中的煤气流量检测器和空气流量检测器来检测每个部分中的煤气流量和空气流量，将煤气流 在每个部分检测到体积，以获得总输入煤气流量; 加上每个部分检测到的空气流量，以获得总输入空气流量，并基于总输入煤气流量和总输入气流量计算炉内的预燃气压力; 使用组合物检测器检测煤气的组成和煤气与空气的比例; 通过使用热电偶检测炉内的预燃气体温度; 基于化学燃烧反应方程，根据总输入煤气流量，总输入空气流量，煤气组成和煤气与空气的比例预测燃烧后气体组成和总气体体积; 点燃炉内的煤气和空气; 并通过使用热电偶检测炉内的后燃气温度; 基于炉内的预燃气体压力，炉内预燃气体温度和炉内后燃气温度计算炉内燃烧后气体压力; 以及基于所述炉内的预燃气体压力和所述炉内的后燃气体压力来计算排气扇的开度，并且使用气体增量通过算法，并且使用所述开度来控制排气 气扇。
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6.发明公开ORIENTED SILICON STEEL AND METHOD FOR MANUFACTURING SAME 审中-公开澳大利亚国家石油公司（VERFAHREN ZUR HERSTELLUNG DAVON）
公开(公告)号：EP2924139A1
公开(公告)日：2015-09-30
申请号：EP12888787.4
申请日：2012-12-11
发明人： YANG, Guohua , LIU, Xiandong , LI, Guobao , YANG, Yongjie , HU, Zhuochao , HEI, Hongxu , ZHANG, Jun , SU, Dejun , SUN, Huande , WU, Meihong
CPC分类号： H01F1/14775 , C21D3/04 , C21D6/008 , C21D8/1216 , C21D8/1222 , C21D8/1233 , C21D8/1255 , C21D8/1261 , C21D8/1283 , C21D9/46 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C23C8/02 , C23C8/26 , H01F1/14783 , H01F1/16 , H01F1/18 , H01F41/02 , H01F41/32
摘要： The invention discloses an oriented silicon steel with excellent magnetic properties and a manufacturing method thereof. The present invention obtains the oriented silicon steel with excellent magnetic properties by controlling the area ratio of small crystal grains of D
摘要翻译： 本发明公开了一种磁性优异的取向硅钢及其制造方法。 本发明通过将取向硅钢成品中D <5mm的小晶粒的面积比控制在3％以下来获得具有优异磁性能的取向硅钢，并且控制磁性的比例μ17/μ15 电导率在1.7T的磁感应下，磁导率在1.5T的磁感应下在定向硅钢成品中为0.50以上。 此外，通过使用具有适当成分的取向硅钢板和优化的冷轧工序，本发明有效地降低了板坯的加热温度及其制造成本，同时更好地控制了晶体的尺寸和比例 定向硅钢成品中的晶粒和磁感应的一定范围内的磁导率，确保二次再结晶具有良好的高斯织构取向，最终稳定获得具有优良磁性能的取向硅钢产品。
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公开(公告)号：EP4089197A1
公开(公告)日：2022-11-16
申请号：EP21760437.0
申请日：2021-02-23
发明人： GAO, Jiaqiang , ZHAO, Sixin , WANG, Wei , ZHANG, Jun
摘要： A steel for mining chain and a manufacturing method thereof, wherein the steel has compositions by weight percentage: C: 0.20~0.28%, Si: 0.01~0.40%, Mn: 0.50~1.50%, P≤0.015%, S≤0.005%, Cr : 0.30~2.00%, Ni: 0.50~2.00%, Mo: 0.10~0.80%, Cu: 0.01~0.30%, Al: 0.01~0.05%, Nb : 0.001~0.10%, V: 0.001~0.10%, H≤0.00018%, N≤0.0150%, O≤0.0020%, and the balance is Fe and inevitable impurities. The manufacturing method comprises steps of smelting, refining and vacuum treatment, casting, heating, forging or rolling, and quenching and tempering heat treatment processes. The steel in the present invention has high strength and good impact toughness, good elongation and reduction of area. The steel can also resist stress corrosion cracking and have good weather resistance, wear resistance and fatigue resistance, which can be used in scenarios where the steel having high strength and toughness is required, such as construction machinery and marine engineering.
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公开(公告)号：EP2634272B1
公开(公告)日：2018-08-08
申请号：EP11835487.7
申请日：2011-04-14
发明人： LIU, Yongfeng , GU, Huazhong , QIAN, Guoqiang , YIN, Bin , WEN, Dejian , HEI, Hongxu , ZHANG, Jun , HU, Deyang
摘要： A method for controlling furnace pressure of a continuous annealing furnace is disclosed. The method comprises detecting a coal gas flow volume and an air flow volume in each section by use of a coal gas flow volume detector and an air flow volume detector disposed in each section of a continuous annealing furnace, respectively, adding up the coal gas flow volume detected in each section to obtain a total input coal gas flow volume; adding up the air flow volume detected in each section to obtain a total input air flow volume, and calculating a pre-combustion gas pressure in the furnace based on the total input coal gas flow volume and the total input air flow volume; detecting compositions of the coal gas and a ratio of the coal gas to the air by use of a composition detector; detecting a pre-combustion gas temperature in the furnace by use of a thermocouple; predicting post-combustion gas compositions and a total gas volume based on chemical combustion reaction equations and based on the total input coal gas flow volume, the total input air flow volume, the coal gas compositions and the ratio of the coal gas to the air; igniting the coal gas and the air in the furnace; and detecting a post-combustion gas temperature in the furnace by use of a thermocouple; calculating a post-combustion gas pressure in the furnace based on the pre-combustion gas pressure in the furnace, pre-combustion gas temperature in the furnace and the post-combustion gas temperature in the furnace; and calculating an opening degree for an exhaust gas fan based on the pre-combustion gas pressure in the furnace and the post-combustion gas pressure in the furnace and by use of a gas increment pass algorithm, and using the opening degree to control the exhaust gas fan.
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