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1. 发明申请

US20220170124A1 METHOD FOR RECYCLING CHROMIUM OXIDE AND FORMING CHROMIUM-ALLOY STEEL 有权
公开(公告)号：US20220170124A1
公开(公告)日：2022-06-02
申请号：US17432370
申请日：2020-03-17
申请人： SABIC Global Technologies B.V.
发明人： Mansour Nasser ALHARBI , Sami Muteib ALMUTAIRI , Malleswara Rao TADIBOYINA
IPC分类号： C21C7/00 , C21C5/52 , C22C38/18 , C21C5/54 , C22C33/06
摘要： Disclosed are processes for recycling chromium oxide and producing chromium-alloy steel. Chromium oxide is reduced to metallic chromium and metallic chromium is mixed with steel to form chromium-alloy steel.

2. 发明授权

US10662510B2 Ductile iron composition and process of forming a ductile iron component 有权
公开(公告)号：US10662510B2
公开(公告)日：2020-05-26
申请号：US15142732
申请日：2016-04-29
申请人： GENERAL ELECTRIC COMPANY
发明人： Junyoung Park , Brian Victor Moore
IPC分类号： C22C37/10 , B22D1/00 , B22D41/00 , C21C1/10 , C22C33/06 , C22C33/10 , C22C37/04 , F27B17/00
摘要： A ductile iron composition including, by weight: about 3.1% to about 3.6% C; about 3.5% to about 4.0% Si; about 0.035% to about 0.050% Mg; about 0.001% to about 0.004% Ce; up to about 0.005% Sb; about 0.008% to about 0.016% S; up to about 0.04% P; up to about 0.3% Mn; and balance iron and incidental impurities; The ductile iron composition includes a ratio of Sb/Ce greater than or equal to about 1.25, has a ferritic microstructure and graphite nodules, and greater than about 65% of the graphite nodules having a highly spherical geometry. A method and apparatus for forming a ductile iron composition are also disclosed.

3. 发明授权

US3991988A Apparatus for mixing different kinds of metallic material 失效
标题翻译：用于混合不同种类的金属材料的设备
公开(公告)号：US3991988A
公开(公告)日：1976-11-16
申请号：US618265
申请日：1975-09-30
申请人： Teiichi Kawai
发明人： Teiichi Kawai
IPC分类号： C21C1/10 , C21C7/04 , C22C1/02 , C22C33/04 , C22C33/06 , F27D3/00
CPC分类号： C21C1/10 , F27D3/0026
摘要： An apparatus for adding a metallic additive to a molten metal having a temperature higher than the boiling point of the metallic additive comprises a double-walled ladle structure having an adiabatic space formed between inner and outer containers which constitute the ladle structure, and a lid. The lid is adapted to close the top opening of the ladle structure so that a substantially hermetically sealed working chamber can be formed therein and above the surface level of the molten metal within the inner container. The working chamber is, when the lid is in position to close the ladle opening, held in communication with the adiabatic space through a plurality of vent passages.
摘要翻译：将金属添加剂添加到温度高于金属添加剂沸点的熔融金属中的装置包括具有形成在构成钢包结构的内容器和外容器之间形成的绝热空间的双壁钢包结构和盖。盖子适于封闭钢包结构的顶部开口，使得可以在其内部和内部容器内的熔融金属的表面水平面上形成基本上气密的工作室。当盖子处于关闭钢包开口的位置时，工作室是通过多个通气通道与绝热空间保持连通的。

4. 发明授权

US2207350A Method of making alloys 失效
公开(公告)号：US2207350A
公开(公告)日：1940-07-09
申请号：US28282639
申请日：1939-07-04
申请人： BATTELLE MEMORIAL INSTITUTE
发明人： LORIG CLARENCE H , KINNEAR HARRY B
IPC分类号： C22C33/06
CPC分类号： C22C33/06

5. 发明申请

US20210262068A1 ALLOY STEEL MANUFACTURING METHOD 有权
公开(公告)号：US20210262068A1
公开(公告)日：2021-08-26
申请号：US17261077
申请日：2019-07-15
申请人： POSCO
发明人： Woong Hee HAN , Yeo Sun YUN , Soo Chang KANG , Jung Hwan SON
IPC分类号： C22C33/06 , C21C5/52
摘要： Provided is an alloy steel manufacturing method, the method including: preparing a manganese-containing first molten ferroalloy; preparing a chromium-containing second molten alloy; preparing molten steel; mixing the first molten ferroalloy and the second molten ferroalloy to manufacture third molten ferroalloy; and mix pouring the third molten ferroalloy and the molten steel to manufacture an alloy steel, wherein the phosphorous concentration in the molten steel may efficiently be controlled by reducing the converter end point temperature of the molten steel to improve a phosphorous control capacity during converter refining.

6. 发明申请

US20200335246A1 Fe-Co BASED AMORPHOUS SOFT MAGNETIC ALLOY AND PREPARATION METHOD THEREOF 审中-公开
公开(公告)号：US20200335246A1
公开(公告)日：2020-10-22
申请号：US16851117
申请日：2020-04-17
申请人： Baolong Shen , Donghui Li , Xingdu Fan , Qianqian Wang , Mufeng Jiang , Xiangrong Jiang , Xiangyue Wang
发明人： Baolong Shen , Donghui Li , Xingdu Fan , Qianqian Wang , Mufeng Jiang , Xiangrong Jiang , Xiangyue Wang
IPC分类号： H01F1/153 , C21D9/52 , C21D8/02 , C22C45/02 , C22C33/06
摘要： The invention relates to the technical field of amorphous soft magnetic material, specifically relating to the field of Fe—Co based amorphous soft magnetic alloy and preparation method thereof. The Fe—Co based amorphous soft magnetic alloy provided in the invention has chemical composition of FeaCobSicBdCue, which possesses merits of highly-saturated magnetic induction, outstanding soft magnetic property and great amorphous forming ability at the same time; the embodiment of Fe—Co based amorphous soft magnetic alloy disclosed in the invention has indicated that its saturation magnetic induction is 1.79˜1.86 T, coercivity 1.4˜4.3 A/m, and permeability 8000˜14000; the invention has advantages of easy treatment process, low annealing temperature, which reduces process cost remarkably and economizes energy, thus having great application prospect.

7. 发明申请

US20190214170A1 MAGNET MATERIAL, PERMANENT MAGNET, MOTOR, AND POWER GENERATOR 审中-公开
公开(公告)号：US20190214170A1
公开(公告)日：2019-07-11
申请号：US16354298
申请日：2019-03-15
申请人： Kabushiki Kaisha Toshiba
发明人： Masaki ENDO , Yasutaka NISHIDA , Shinya SAKURADA , Keiko OKAMOTO , Fumihiko AIGA
IPC分类号： H01F1/047 , H02K1/02 , H01F1/08 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/10 , C22C38/12 , C22C38/24 , C22C38/30 , C22C38/32 , C22C38/38 , H01F7/02 , H02K1/27 , C22C38/00 , C22C33/04 , C22C33/06
摘要： A magnet material of an embodiment includes a composition represented by a formula 1: (Fe1-x-yCoxTy)2(B1-aAa)b, and a metallic structure having a CuAl2 crystal phase as a main phase. T is at least one element selected from V, Cr, and Mn. A is at least one element selected from C, N, Si, S, P, and Al. An atomic ratio x of Co and an atomic ratio y of the element T satisfy 0.01≤y≤0.5 and x+y≤0.5. When the element T includes at least one element selected from V and Cr, a total atomic ratio of V and Cr is 0.03 or more. When the element T includes Mn, an atomic ratio of Mn is 0.3 or less. An atomic ratio a of the element A satisfies 0≤a≤0.4. A total atomic ratio b of B and the element A satisfies 0.8≤b≤1.2.

8. 发明授权

US3999984A Method of adding metallic additive to molten metal of higher temperature than boiling point of the additive 失效
标题翻译：将金属添加剂添加到比添加剂沸点高的熔融金属中的方法
公开(公告)号：US3999984A
公开(公告)日：1976-12-28
申请号：US618266
申请日：1975-09-30
申请人： Teiichi Kawai
发明人： Teiichi Kawai
IPC分类号： C21C1/10 , C21C7/04 , C22C1/02 , C22C33/04 , C22C33/06 , F27D3/00 , C22C33/08
CPC分类号： C21C1/10 , F27D3/0026
摘要： A method of adding a metallic additive to a molten metal having a temperature higher than the boiling point of the metallic additive comprises introduction of the metallic additive into the molten metal while the pressure within a double-walled ladle structure is adjusted to a value substantially equal to 70 to 85% of the vapor pressure evolved by the vaporization of the metallic additive. The method employs the double walled ladle structure having an adiabatic space formed between inner and outer containers which constitute the ladle structure together with a lid adapted to close the top opening of the ladle structure to enable the pressure within the ladle structure can be adjusted to the predetermined value.
摘要翻译：将金属添加剂添加到温度高于金属添加剂沸点的熔融金属中的方法包括将金属添加剂引入熔融金属中，同时将双壁钢包结构内的压力调节至基本相等的值至通过金属添加剂蒸发而释放的蒸汽压的70至85％。该方法采用双壁浇包结构，其具有形成在内部和外部容器之间的绝热空间，其构成浇包结构以及适于闭合浇包结构的顶部开口的盖，使得钢包结构内的压力可以调节到预定值。

9. 发明授权

US2986459A Metallurgical process 失效
公开(公告)号：US2986459A
公开(公告)日：1961-05-30
申请号：US85729359
申请日：1959-12-04
申请人： STRATEGIC UDY METALLURGICAL & CHEMICAL PROCESSES LTD
发明人： UDY MURRAY C
IPC分类号： C21B13/00 , C22C33/06
CPC分类号： C21B13/006 , C22C33/06 , Y02P10/216

10. 发明授权

US2259342A Method of adding lead to steel 失效
标题翻译：添加铅钢的方法
公开(公告)号：US2259342A
公开(公告)日：1941-10-14
申请号：US33011440
申请日：1940-04-17
申请人： INLAND STEEL CO
发明人： HARDER OSCAR E
IPC分类号： C22C33/06
CPC分类号： C22C33/06

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