公开(公告)号：US11590266B2

公开(公告)日：2023-02-28

申请号：US16559810

申请日：2019-09-04

申请人： UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION

发明人： Prashant N. Kumta ,  Sung Jae Chung ,  Partha Saha ,  Oleg Velikokhatnyi ,  Moni Kanchan Datta ,  Dae Ho Hong ,  Da-Tren Chou

IPC分类号： C22C38/00 ,  A61L31/02 ,  A61L31/14 ,  C22C33/10 ,  C22C38/14 ,  C22C45/02

摘要： The invention relates to biodegradable iron alloy-containing compositions for use in preparing medical devices. In addition, biodegradable crystalline and amorphous compositions of the invention exhibit properties that make them suitable for use as medical devices for implantation into a body of a patient. The compositions include elemental iron and one or more elements selected from manganese, magnesium, zirconium, zinc and calcium. The compositions can be prepared using a high energy milling technique. The resulting compositions and the devices formed therefrom are useful in various surgical procedures, such as but not limited to orthopedic, craniofacial and cardiovascular.

公开(公告)号：US10787726B2

公开(公告)日：2020-09-29

申请号：US15142323

申请日：2016-04-29

申请人： GENERAL ELECTRIC COMPANY

发明人： Junyoung Park ,  Ibrahim Ucok

IPC分类号： C22C37/10 ,  C21D5/14 ,  C21D5/00 ,  C21C1/10 ,  C22C33/06 ,  C22C33/10 ,  C22C37/04 ,  C22C37/06 ,  C21D9/32

摘要： A ductile iron composition including, by weight: about 3.4% to about 4.0% Si; about 3.0% to about 3.5% C; about 0.5% to about 1.0% Cr; about 0.02% to about 0.05% Mo; up to about 0.01% S; up to about 0.5% Mn; and balance iron and incidental impurities. The composition has a a ferritic body center cubic microstructure and has a graphite nodule density of greater than 100 per mm2. A method for forming a ductile iron composition is also disclosed.

公开(公告)号：US20170314104A1

公开(公告)日：2017-11-02

申请号：US15142323

申请日：2016-04-29

申请人： GENERAL ELECTRIC COMPANY

发明人： Junyoung PARK ,  Ibrahim UCOK

IPC分类号： C22C37/10 ,  C22C37/04 ,  C22C33/10 ,  C22C37/06 ,  C22C33/06

摘要： A ductile iron composition including, by weight: about 3.4% to about 4.0% Si; about 3.0% to about 3.5% C; about 0.5% to about 1.0% Cr; about 0.02% to about 0.05% Mo; up to about 0.01% S; up to about 0.5% Mn; and balance iron and incidental impurities. The composition has a a ferritic body center cubic microstructure and has a graphite nodule density of greater than 100 per mm2. A method for forming a ductile iron composition is also disclosed.

公开(公告)号：US6099614A

公开(公告)日：2000-08-08

申请号：US875427

申请日：1997-07-03

申请人： Ettore Bennati

发明人： Ettore Bennati

IPC分类号： C21C7/04 ,  C21C1/00 ,  C21C1/02 ,  C21C1/10 ,  C21C7/00 ,  C21C7/06 ,  C22C33/08 ,  C22C33/10

CPC分类号： C22C33/10 ,  C21C1/02 ,  C21C1/10 ,  C21C7/06

摘要： This invention covers the method and equipment for the continuous or discontinuous addition of reaction/inoculation materials necessary for desulphurization or the production of ductile iron obtainable during the passage of the base iron through a basin containing the chamber for melting, vaporizing and distributing the reaction-inoculation materials into the melt (e.g. magnesium vapor-Ferrum Silicon). The treatment can be conducted continuously for unlimited or freely definable quantities of iron.

摘要翻译： PCT No.PCT / IT95 / 02223 Sec。 371日期1997年7月3日 102（e）日期1997年7月3日PCT 1995年12月20日PCT PCT。 公开号WO96 / 21046 日期1996年7月11日本发明涵盖连续或不连续加入反应/接种材料的方法和设备，用于脱硫或生产球铁时可获得的反应/接种材料，其在碱铁通过含有用于熔化，蒸发 并将反应接种材料分配到熔体中（例如镁蒸汽 - Ferrum硅）。 可以连续进行无限量或可自由定量的铁的处理。

公开(公告)号：US5098651A

公开(公告)日：1992-03-24

申请号：US619043

申请日：1990-11-28

申请人： Henych Ivo

发明人： Henych Ivo

IPC分类号： B22D1/00 ,  C21C1/10 ,  C22C33/10

CPC分类号： C22C33/10 ,  B22D1/00 ,  C21C1/10 ,  C21C1/105

摘要： A magnesium treatment process is proposed for the production of a treated iron melt containing less than 100 grams per ton non-metallic inclusions. The treatment reaction is so arranged that the magnesium is introduced into the melt from a chamber at a depth of at least 200 mm below the surface of the melt. Thus, the quantity of vaporized magnesium produces a mixing energy of at least 1,000 W/m.sup.3, which ensures the necessary elimination of non-metallic inclusions. The surface of the molten mass is covered by a non-oxidizing, preferably a reducing atmosphere.

摘要翻译： 提出了一种镁处理工艺，用于生产含有少于100克/吨非金属夹杂物的处理铁熔体。 处理反应如此布置，使得镁从在熔体表面下方至少200mm深度的室引入熔体中。 因此，蒸发的镁的量产生至少1,000W / m 3的混合能量，这确保了非金属夹杂物的必要消除。 熔融物质的表面被非氧化性，优选还原气氛覆盖。

公开(公告)号：US4997167A

公开(公告)日：1991-03-05

申请号：US388995

申请日：1989-08-03

申请人： Pertti Harma

发明人： Pertti Harma

IPC分类号： B22D11/10 ,  B22D1/00 ,  B22D11/108 ,  B22D11/111 ,  C12C1/02 ,  C21C1/10 ,  C21C7/04 ,  C22C33/10

CPC分类号： C22C33/10 ,  C21C1/10

摘要： The present invention relates to a dispensing equipment for adding inoculants to the stream of molten iron flowing from the spout of a tilting ladle. The dispensing equipment comprises a hopper (4) for the inoculant which hopper has an outlet opening (5) which extends through the wall of a first pipe 6. Means (9) is arranged for continuously and adjustably transportation of inoculant from the hopper (4) through the first pipe (6) and a second pipe 8 into the spout (1) of the ladle. The second pipe (8) is rotatably connected to the first pipe (6). A mounting frame (18) is suspended from the first pipe (6) by means of at least two bearings (16, 17), which bearings (16, 17) are rotatably arranged about the first pipe (6). The mounting frame (18) is firmly affixed to the second pipe (8), and a mounting arm (21) is fixed to the mounting frame (18), said mounting arm being intended to cooperate with a mounting bracket (3) on the ladle spout (1).

公开(公告)号：US4900509A

公开(公告)日：1990-02-13

申请号：US723041

申请日：1985-04-15

申请人： Werner Menk ,  Urs Brandenberger

发明人： Werner Menk ,  Urs Brandenberger

IPC分类号： C21C1/08 ,  C21C1/10 ,  C22C33/10

CPC分类号： C21C1/08 ,  C21C1/10

摘要： A process for the manufacture of cast iron containing vermicular graphite is described, in which nodular cast iron (GGG) is used as a starting melt. The GGG melt can be produced in a converter in a precise and reproducible way, whereby the sulphur and oxygen contents of the GGG melt are limited within narrow ranges. Additional sulphur is added to the GGG melt in an amount determined by an empirical formula depending on the magnesium and sulphur contents of the GGG melt to produce cast iron containing vermicular graphite (GGV). The GGV is produced by the present process with precision and in a reproducible manner.

摘要翻译： 描述了制造含蠕虫状石墨的铸铁的方法，其中使用球墨铸铁（GGG）作为起始熔体。 GGG熔体可以以精确和可再现的方式在转化器中制备，由此GGG熔体的硫和氧含量被限制在窄范围内。 根据经验公式确定的额外的硫加入到GGG熔体中，取决于GGG熔体的镁和硫含量以产生含蠕虫状石墨（GGV）的铸铁。 GGV是通过本方法以精确和可重现的方式产生的。

公开(公告)号：US4690385A

公开(公告)日：1987-09-01

申请号：US915779

申请日：1986-10-06

申请人： Gunther Beele

发明人： Gunther Beele

IPC分类号： B22D39/04 ,  C21C1/10 ,  C22C33/10 ,  F27B14/08 ,  F27B14/14 ,  C21C7/02

CPC分类号： C21C1/10 ,  C22C33/10

摘要： An apparatus (1) for storing and maintaining the temperature level of molten metals, such as a cast iron melt which has been treated with pure magnesium. The apparatus includes a heatable furnace chamber (3) having a pressure-tight cover (4) and an inlet and an outlet (2), which also may be provided with a cover (6). The inlet and outlet (2) is preferably formed as a common inlet and outlet siphon. The closed furnace chamber (3) is supplied with a medium such as argon or nitrogen under pressure. A cast iron melt which has been treated with particular additives can be maintained at a certain temperature over longer periods of time with a decaying effect.

摘要翻译： 一种用于储存和保持熔融金属的温度水平的装置（1），例如用纯镁处理的铸铁熔体。 该装置包括具有耐压盖（4）和可以设置有盖（6）的入口和出口（2）的可加热炉室（3）。 入口和出口（2）优选地形成为公共入口和出口虹吸管。 封闭的炉室（3）在压力下被供给诸如氩气或氮气的介质。 已经用特定添加剂处理的铸铁熔体可以在更长的时间内保持在一定温度下，具有腐蚀作用。

公开(公告)号：US4657588A

公开(公告)日：1987-04-14

申请号：US828958

申请日：1986-02-12

申请人： Karl Gut ,  Ivo Henych

发明人： Karl Gut ,  Ivo Henych

IPC分类号： C22C33/10 ,  B22D1/00 ,  B22D41/50 ,  C21C1/10 ,  F27D25/00 ,  C22C33/08

CPC分类号： F27D25/00 ,  B22D41/50 ,  C21C1/10 ,  F27D25/005

摘要： A method of keeping inductor spouts, downgates and outlet casting channels and the like free of deposits during the production of a cast iron melt involves treatment with pure magnesium. Such deposits, which occur as reaction products and block the channels causing considerable maintenance expense, are prevented by the use of pure magnesium. The cast iron melt is flushed free of suspended highly basic reaction products, such as MgO, CaO, Al.sub.2 O.sub.3, FeO and MgS, in a predetermined magnesium treatment of the cast iron melt with pure magnesium by a simultaneous evaporation of magnesium not consumed in the magnesium treatment. By preventing the formation of deposits, the life of the vessel used is increased and maintenance costs are decreased.

摘要翻译： 在生产铸铁熔体期间保持不含沉积物的电感器喷口，下部浇口和出口铸造通道等的方法包括用纯镁处理。 通过使用纯镁可以防止这种作为反应产物发生并堵塞导致相当大的维护费用的沉积物。 在预定的镁处理铸铁熔体中，通过镁在镁中不被消耗的同时蒸发，将铸铁熔体在没有悬浮的高度碱性的反应产物如MgO，CaO，Al 2 O 3，FeO和MgS中进行冲洗。 治疗。 通过防止沉积物的形成，使用的容器的使用寿命增加，维护成本降低。

公开(公告)号：US4596606A

公开(公告)日：1986-06-24

申请号：US647333

申请日：1984-09-04

申请人： Bela V. Kovacs ,  Roman M. Nowicki

发明人： Bela V. Kovacs ,  Roman M. Nowicki

IPC分类号： C22C37/04 ,  B21B1/22 ,  B21B1/36 ,  C21C1/10 ,  C21D5/00 ,  C21D5/02 ,  C21D8/02 ,  C22C33/00 ,  C22C33/08 ,  C22C33/10 ,  C22C37/00

CPC分类号： C22C33/10 ,  B21B1/22 ,  C21D5/02 ,  C21D8/0236 ,  C22C33/00 ,  C22C33/08 ,  B21B1/36 ,  B21B2261/22 ,  B21B2265/14 ,  C21D8/0257 ,  C21D8/0268

摘要： A method is disclosed for making compacted graphite cast iron of improved strength and hardness while retaining excellent thermal conductivity, low shrinkage, and excellent damping characteristics. A ferrous alloy is melted consisting essentially of, by weight, 3-4% C, 2-3% Si, 0.2-0.7% Mn, 0.25-0.4 Mo, 0.5-3.0% Ni, up to 0.002% sulfur, up to 0.02% phosphorus, and impurities or contaminants up to 1.0%, with the remainder being essentially iron. The melt is subjected to a graphite modifying agent to form compacted graphite upon solidification. The solidified casting is heat treated by austempering and quenching to produce an iron having a matrix of bainite and austenite.

摘要翻译： 公开了一种制造压缩石墨铸铁的方法，其具有改进的强度和硬度，同时保持优异的导热性，低收缩率和优异的阻尼特性。 一种铁合金基本上由重量比为3-4％C，2-3％Si，0.2-0.7％Mn，0.25-0.4Mo，0.5-3.0％Ni，至多0.002％硫，至多0.02％ ％磷，高达1.0％的杂质或污染物，其余部分基本上是铁。 熔融物经历石墨改性剂以在固化时形成压实的石墨。 通过奥氏体淬火和淬火对固化的铸件进行热处理，以生产具有贝氏体和奥氏体的基体的铁。