公开(公告)号：US5523050A

公开(公告)日：1996-06-04

申请号：US032437

申请日：1993-03-15

Applicant: David J. Lloyd ,  Iljoon Jin

Inventor： David J. Lloyd ,  Iljoon Jin

IPC: C22C1/02 ,  C22C1/10 ,  C22C21/04 ,  C22C32/00 ,  C22C21/00 ,  C22C1/00

CPC classification number: C22C1/1036 ,  C22C32/00 ,  Y10T428/12535 ,  Y10T428/12576 ,  Y10T428/12611

Abstract: A method is described for preparing a refined or reinforced eutectic or hyper-eutectic metal alloy, comprising: melting the eutectic or hyper-eutectic metal alloy, adding particles of non-metallic refractory material to the molten metal matrix, mixing together the molten metal alloy and the particles of refractory material, and casting the resulting mixture under conditions causing precipitation of at least one intermetallic phase from the molten metal matrix during solidification thereof such that the intermetallics formed during solidification wet and engulf said refractory particles. The added particles may be very small and serve only to refine the precipitating intermetallics in the alloy or they may be larger and serve as reinforcing particles in a composite with the alloy. The products obtained are also novel.

Abstract translation: 描述了一种用于制备精炼或增强的共晶或超共晶金属合金的方法，包括：熔化共晶或超共晶金属合金，将非金属耐火材料的颗粒添加到熔融金属基体中，将熔融金属合金 和耐火材料颗粒，并在所述混合物的凝固期间从熔融金属基体中引起至少一种金属间化合物析出的条件下浇铸所得混合物，使得在固化期间形成的金属间化合物湿润并吞噬所述耐火材料颗粒。 添加的颗粒可能非常小，仅用于细化合金中的沉淀金属间化合物，或者它们可以更大并且用作与合金的复合材料中的增强颗粒。 所获得的产品也是新颖的。

公开(公告)号：US5246057A

公开(公告)日：1993-09-21

申请号：US839835

申请日：1992-02-21

Applicant: Inge L. H. Hansson ,  David J. Lloyd ,  Iljoon Jin ,  Michael D. Skibo

Inventor： Inge L. H. Hansson ,  David J. Lloyd ,  Iljoon Jin ,  Michael D. Skibo

IPC: C22C1/10 ,  C22C21/00 ,  C22C21/06 ,  C22C32/00

CPC classification number: C22C32/00 ,  C22C1/1036 ,  C22C21/06 ,  C22C32/0036 ,  C22C2001/1047 ,  C22C2001/1052

Abstract: A method for preparing a composite material comprises the steps of providing a first mixture of a molten aluminum-base matrix alloy having at least about 4 percent by weight magnesium, and a mass of discontinuous reinforcing particles that are not soluble in the molten matrix alloy, and mixing the first mixture to wet the matrix alloy to the particles and to distribute the particles throughout the volume of the molten matrix alloy. The first matrix alloy is diluted to reduce the magnesium content of the mixture to less than about 4 percent by weight magnesium, to produce a second mixture, and the second mixture is cast. The second mixture has at least about 5 volume percent particles, and preferably has about 5-25 volume percent particles.

Abstract translation: 制备复合材料的方法包括以下步骤：提供具有至少约4重量％镁的熔融铝基基质合金和不溶于熔融基质合金的不连续增强颗粒的质量的第一混合物， 并将第一混合物混合以将基质合金润湿至颗粒，并将颗粒分散在整个熔融基质合金的体积中。 将第一种基质合金稀释以将混合物的镁含量降低至小于约4％（重量）的镁，以产生第二种混合物，并将第二种混合物浇铸。 第二混合物具有至少约5体积％的颗粒，优选具有约5-25体积％的颗粒。

公开(公告)号：US5028392A

公开(公告)日：1991-07-02

申请号：US538225

申请日：1990-06-14

Applicant: David J. Lloyd ,  Alan D. McLeod ,  Philip L. Morris ,  Iljoon Jin

Inventor： David J. Lloyd ,  Alan D. McLeod ,  Philip L. Morris ,  Iljoon Jin

IPC: B22D1/00 ,  C22C1/10 ,  C22C21/00 ,  C22C32/00

CPC classification number: B22D1/00 ,  C22C1/1036 ,  C22C32/0036 ,  Y10T428/12486

Abstract: A metal matrix composite material containing discontinuous particles in a metallic matrix is prepared by forming a mixture of the molten alloy and the particles in a closed reactor, removing oxygen from the interior of the reactor, statically pressurizing the interior of the reactor with nitrogen gas, mixing the mixture of the molten alloy and particles in the presence of the static nitrogen gas to wet the molten matrix to the particles, and evacuating the interior of the reactor in a stepwise manner. The nitrogen gas aids in wetting the metallic alloy to the particles by forming aluminum nitride at the particle-molten matrix interface, so that a lower contact angle of the alloy to the particle results. Oxygen that may be present in the sealed reactor is gettered by the aluminum, and the nitrogen is removed by stepwise evacuation, thereby minimizing the introduction of gas into, and retention of gas within, the melt.

Abstract translation: 通过在密闭反应器中形成熔融合金和颗粒的混合物来制备金属基体中含有不连续颗粒的金属基质复合材料，从反应器内部除去氧气，用氮气静置加压反应器内部， 在静态氮气存在下将熔融合金和颗粒的混合物混合，将熔融基体润湿颗粒，并逐步排空反应器内部。 氮气有助于通过在颗粒 - 熔融基质界面处形成氮化铝将金属合金润湿到颗粒中，从而导致合金与颗粒的较低接触角。 可能存在于密封反应器中的氧气被铝吸收，并且通过逐步排空除去氮气，从而最小化气体进入和保持熔体内的气体。

公开(公告)号：US5255433A

公开(公告)日：1993-10-26

申请号：US863399

申请日：1992-04-03

Applicant: Iljoon Jin ,  Paul W. Jeffrey ,  David J. Lloyd ,  Sergio Gallo

Inventor： Iljoon Jin ,  Paul W. Jeffrey ,  David J. Lloyd ,  Sergio Gallo

IPC: C22C1/10 ,  C22C32/00 ,  F02F1/10 ,  F02F7/00 ,  B22D19/14

CPC classification number: C22C32/0036 ,  C22C1/1094 ,  F02F1/10 ,  F02F7/0085 ,  F02F2007/009 ,  Y10T29/49272

Abstract: Engine block cylinder liners are formed from high melting temperature aluminum alloy composites. A cast composite is first formed from a high melting temperature aluminum alloy, e.g. Al-Mn, Al-Cr, Al-Ni, Al-Fe or Al-Cr-Zr, and refractory particles, e.g. alumina. This composite is then extruded into a tubular sleeve. If desired, a long tube may be extruded which is then cut into desired lengths. These new cylinder liners have the following desirable properties: high melting temperature, good strength at the service temperature, higher thermal conductivity than cast iron, good wear resistance and good corrosion resistance.

Abstract translation: 发动机缸体气缸套由高熔点铝合金复合材料制成。 铸造复合材料首先由高熔点铝合金形成，例如， Al-Mn，Al-Cr，Al-Ni，Al-Fe或Al-Cr-Zr，以及耐火材料颗粒。 氧化铝。 然后将该复合物挤压成管状套筒。 如果需要，可以挤出长管，然后将其切割成所需长度。 这些新的气缸套具有以下所需的性能：高熔点温度，在使用温度下良好的强度，比铸铁更高的热导率，良好的耐磨性和良好的耐腐蚀性。

公开(公告)号：US4929421A

公开(公告)日：1990-05-29

申请号：US232613

申请日：1988-08-15

Applicant: Iljoon Jin ,  David J. Lloyd

Inventor： Iljoon Jin ,  David J. Lloyd

IPC: C22F1/04 ,  B22D11/06 ,  C22C21/00 ,  C22F1/00

CPC classification number: C22C21/00

Abstract: A new family of medium and high strength, thermally stable aluminum based alloys are described having the following composition: 0.4 to 1.2% by weight chromium, 0.3 to 0.8% by weight zirconium, 1.5 to 2.5% by weight manganese, 0 to 2.0% by weight magnesium and the balance essentially aluminum. These alloys can be produced on a twin-roll caster preferably at a thickness of no more than 4 mm and a casting temperature of at least 820.degree. C.

公开(公告)号：US06257312B1

公开(公告)日：2001-07-10

申请号：US09131131

申请日：1998-08-07

Applicant: Don Doutre ,  Gary Hay ,  Iljoon Jin ,  Peter Wales ,  David J. Lloyd

Inventor： Don Doutre ,  Gary Hay ,  Iljoon Jin ,  Peter Wales ,  David J. Lloyd

IPC: B22D1914

CPC classification number: C22C1/1036 ,  C22C1/1094 ,  C22C2001/1047 ,  H01L23/15 ,  H01L23/3733 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A composite material having less than about 25 volume percent refractory particles in a metal matrix is concentrated to have about 37-45 volume percent refractory particles. The concentrating is accomplished by heating the composite material to melt the matrix, and then contacting the molten composite material to a porous element having an average pore size greater than that of the average particle size. A small pressure differential, on the order of about one atmosphere, is applied across the porous element, so that metal matrix material separates from the composite material and flows through the porous element. The particulate volume fraction in the composite material gradually increases. When the particulate volume fraction exceeds about 37 volume percent, the mass of composite material becomes semi-solid and freestanding. The resulting composite material may be further processed, as by forming to a useful shape or diluting with another matrix material.

Abstract translation: 在金属基质中具有少于约25体积％的难熔颗粒的复合材料被浓缩以具有约37-45体积％的耐火颗粒。 浓缩通过加热复合材料以熔化基质，然后使熔融的复合材料与平均孔径大于平均粒径的多孔元件接触来实现。 大约一个大气压的小压差施加在多孔元件上，使得金属基质材料与复合材料分离并流过多孔元件。 复合材料中的颗粒体积分数逐渐增加。 当颗粒体积分数超过约37体积％时，复合材料的质量变成半固体和独立的。 所得到的复合材料可以进一步加工，如通过形成有用的形状或用另一种基质材料稀释。

公开(公告)号：US6015528A

公开(公告)日：2000-01-18

申请号：US610671

申请日：1996-03-04

Applicant: Richard S. Bruski ,  Larry G. Hudson ,  Iljoon Jin ,  David J. Lloyd ,  Michael D. Skibo

Inventor： Richard S. Bruski ,  Larry G. Hudson ,  Iljoon Jin ,  David J. Lloyd ,  Michael D. Skibo

IPC: B22D11/00 ,  B22D1/00 ,  B22D11/10 ,  B22D11/11 ,  B22D11/112 ,  B22D11/114 ,  B22D11/115 ,  B22D11/116 ,  B22D19/14 ,  C22C1/10

CPC classification number: B22D1/00 ,  B22D11/11 ,  B22D19/14 ,  Y10T428/12486

Abstract: A composite material mixture of free flowing reinforcement particles in a molten metal is solidified at a cooling rate greater than about 15.degree. C. per second between the liquidus and solidus temperatures of the matrix alloy. This high cooling rate imparts a homogeneous structure to the solid composite material. Care is taken to avoid the introduction of gas bubbles into the molten composite material while the mixture is stirred to prevent segregation of the particles. For viscous melts, an artificial surface layer such as a fiberglass blanket may be used to prevent entrapment of bubbles during pre-casting stirring. Additionally, gas bubbles are removed from the molten mixture by filtering and skimming.

Abstract translation: 在熔融金属中的自由流动的增强颗粒的复合材料混合物在基质合金的液相线和固相线温度之间以大于约15℃/秒的冷却速率固化。 这种高冷却速率赋予固体复合材料均匀的结构。 注意避免在熔融的复合材料中引入气泡，同时搅拌混合物以防止颗粒分离。 对于粘性熔体，可以使用诸如玻璃纤维毯的人造表面层来防止在预浇铸搅拌期间夹带气泡。 此外，通过过滤和撇取从熔融混合物中除去气泡。

公开(公告)号：US5616189A

公开(公告)日：1997-04-01

申请号：US279214

申请日：1994-07-22

Applicant: Iljoon Jin ,  John Fitzsimon ,  Michael J. Bull ,  Pierre H. Marois ,  Alok K. Gupta ,  David J. Lloyd

Inventor： Iljoon Jin ,  John Fitzsimon ,  Michael J. Bull ,  Pierre H. Marois ,  Alok K. Gupta ,  David J. Lloyd

IPC: B22D11/00 ,  B22D11/06 ,  C22C21/02 ,  C22C21/06 ,  C22C21/08 ,  C22C21/14 ,  C22C21/16 ,  C22F1/00 ,  C22F1/043 ,  C22F1/05 ,  C22F1/057 ,  C22F1/04

CPC classification number: C22C21/16 ,  C22C21/02 ,  C22C21/08 ,  C22C21/14 ,  C22F1/043 ,  C22F1/05 ,  C22F1/057

Abstract: An alloy of aluminum containing magnesium, silicon and optionally copper in amounts in percent by weight falling within one of the following ranges:(1) 0.4.ltoreq.Mg.ltoreq.0.8, 0.2.ltoreq.Si.ltoreq.0.5, 0.3.ltoreq.Cu.ltoreq.3.5;(2) 0.8.ltoreq.Mg.ltoreq.1.4, 0.2.ltoreq.Si.ltoreq.0.5, Cu.ltoreq.2.5; and(3) 0.4.ltoreq.Mg.ltoreq.1.0, 0.2.ltoreq.Si.ltoreq.1.4, Cu.ltoreq.2.0; said alloyhaving been formed into a sheet having properties suitable for automotive applications. The alloy may also contain at least one additional element selected from the group consisting of Fe in an amount of 0.4 percent by weight or less, Mn in an amount of 0.4 percent by weight or less, Zn in an amount of 0.3 percent by weight or less and a small amount of at least one other element, such as Cr, Ti, Zr and V. The alloy may be fabricated into sheet material suitable for automotive panels by, in a belt casting machine, producing alloy sheet by casting the alloy while extracting heat from the alloy at a rate that avoids both shell distortion of the sheet and excessive surface segregation, at least until said alloy freezes; solution heat treating the sheet to re-dissolve precipitated particles; and cooling the sheet at a rate that produces a T4 temper and a potential T8X temper suitable for automotive panels. By such means, panels suitable for automotive use can be produced efficiently and economically.

Abstract translation: 含有镁，硅和任选铜的铝的合金，其重量百分比在下列范围之内：（1）0.4

公开(公告)号：US5588478A

公开(公告)日：1996-12-31

申请号：US182683

申请日：1994-01-18

Applicant: Iljoon Jin ,  David J. Lloyd ,  Roland S. Timsit ,  Eric R. Lees

Inventor： Iljoon Jin ,  David J. Lloyd ,  Roland S. Timsit ,  Eric R. Lees

IPC: B22D11/06 ,  B22D11/11

CPC classification number: B22D11/11 ,  B22D11/0622 ,  B22D11/0697

Abstract: A high speed twin roll casting process is described in which molten metal is fed through a feeding nose into a convergent cavity formed between the walls of two rotating rolls with a meniscus of hot metal extending from the feeding nose tip in a casting zone and the metal strip formed in the casting zone is reduced in a rolling zone. According to the novel feature, the tendency of the metal strip to stick to the rolls is significantly inhibited by shrouding the hot metal meniscus with an oxygen enriched atmosphere. Also when the metal is an Al--Mg alloy, the sticking is greatly inhibited by adding to the alloy a small amount of at least one alloying element selected from nickel, lead, indium and bismuth.

Abstract translation: 描述了一种高速双辊铸造方法，其中熔融金属通过进料鼻进料到形成在两个旋转辊的壁之间的会聚空腔中，其中在铸造区域中从进料鼻尖延伸的热金属弯液面和金属 在轧制区域中，在铸造区域中形成的钢带减少。 根据新颖特征，通过用富氧气氛遮盖热金属弯液面，显着抑制了金属带粘附到辊上的趋势。 此外，当金属是Al-Mg合金时，通过向合金中添加少量选自镍，铅，铟和铋的至少一种合金元素，可以大大抑制粘附。

公开(公告)号：US5299724A

公开(公告)日：1994-04-05

申请号：US553111

申请日：1990-07-13

Applicant: Richard S. Bruski ,  Larry G. Hudson ,  Iljoon Jin ,  David J. Lloyd ,  Michael D. Skibo

Inventor： Richard S. Bruski ,  Larry G. Hudson ,  Iljoon Jin ,  David J. Lloyd ,  Michael D. Skibo

IPC: B22D11/00 ,  B22D1/00 ,  B22D11/10 ,  B22D11/11 ,  B22D11/112 ,  B22D11/114 ,  B22D11/115 ,  B22D11/116 ,  B22D19/14 ,  C22C1/10

CPC classification number: B22D1/00 ,  B22D11/11 ,  B22D19/14 ,  Y10T428/12486

Abstract: A composite material mixture of free flowing reinforcement particles in a molten metal is solidified at a cooling rate greater than about 15.degree. C. per second between the liquidus and solidus temperatures of the matrix alloy. This high cooling rate imparts a homogeneous structure to the solid composite material. Care is taken to avoid the introduction of gas bubbles into the molten composite material while the mixture is stirred to prevent segregation of the particles. For viscous melts, an artificial surface layer such as a fiberglass blanket may be used to prevent entrapment of bubbles during pre-casting stirring. Additionally, gas bubbles are removed from the molten mixture by filtering and skimming.

Abstract translation: 在熔融金属中的自由流动的增强颗粒的复合材料混合物在基质合金的液相线和固相线温度之间以大于约15摄氏度/秒的冷却速率固化。 这种高冷却速率赋予固体复合材料均匀的结构。 注意避免在熔融的复合材料中引入气泡，同时搅拌混合物以防止颗粒分离。 对于粘性熔体，可以使用诸如玻璃纤维毯的人造表面层来防止在预浇铸搅拌期间夹带气泡。 此外，通过过滤和撇取从熔融混合物中除去气泡。