公开(公告)号：US6120623A

公开(公告)日：2000-09-19

申请号：US24849

申请日：1998-02-17

Applicant: Alok Kumar Gupta ,  David James Lloyd ,  Michael Jackson Bull ,  Pierre H. Marois ,  Daniel Ronald Evans

Inventor： Alok Kumar Gupta ,  David James Lloyd ,  Michael Jackson Bull ,  Pierre H. Marois ,  Daniel Ronald Evans

IPC: C22F1/05 ,  C22C21/02 ,  C22C21/06 ,  C22C21/08 ,  C22F1/00 ,  C22F1/04 ,  C22F1/047 ,  C22F1/057

CPC classification number: C22C21/08 ,  C22F1/047 ,  C22F1/057

Abstract: A process of producing an aluminum alloy sheet product suitable for forming into automotive parts and exhibiting reduced roping effects. The process involves producing an aluminum alloy sheet product by direct chill casting an aluminum alloy to form a cast ingot, homogenizing the ingot, hot rolling the ingot to form and intermediate gauge product, cold rolling the intermediate gauge product to form a product of final gauge, and subjecting the final gauge product to a solutionizing treatment by heating the product to a solutionizing temperature, followed by a pre-aging step involving cooling the product to a coiling temperature above 50.degree. C., coiling the cooled product at the coiling temperature, and cooling the coiled final gauge product from the coiling temperature above 50.degree. C. to ambient temperature at a rate less than about 10.degree. C. per hour to improve T8X temper characteristics of the product. Additionally, a batch anneal step is carried out on the intermediate gauge product or at an intermediate stage of the cold rolling to reduce or eliminate roping tendencies of the alloy sheet product. To maintain a high T8X response, the alloy used in the process has the following composition: 0.4 to 1.1% by weight magnesium; 0.3 to 1.4% by weight silicon; 0 to 1.0% by weight copper; 0 to 0.4% by weight iron; 0 to 0.15% by weight manganese; 0 to 0.15% weight naturally-occurring impurities (collective total); and the balance aluminum. The invention also relates to a sheet alloy product exhibiting reduced roping effects produced by the indicated process.

Abstract translation: 一种制造适合于形成汽车部件并显示降低的绳索效果的铝合金板材产品的方法。 该方法包括通过直接冷铸铝合金来生产铝合金板产品，以形成铸锭，均质铸锭，热轧锭以形成和中间量规产品，冷轧中间规格产品以形成最终规格的产品 并通过将产物加热至溶解温度，然后进行预熟化步骤，使产物冷却到高于50℃的卷取温度，对最终规格产品进行固溶处理，卷取卷取温度下的冷却产物， 并将卷取的最终规格产品从高于50℃的卷取温度以小于约10℃/小时的速率冷却至环境温度，以改善产品的T8X回火特性。 此外，在中间规格产品上或在冷轧的中间阶段进行批量退火步骤，以减少或消除合金板产品的卷曲倾向。 为了保持高T8X响应，该方法中使用的合金具有以下组成：0.4至1.1重量％的镁; 0.3〜1.4重量％的硅; 0〜1.0重量％的铜; 0〜0.4％（重量）铁; 0〜0.15重量％的锰; 0〜0.15％重量的天然杂质（总量）; 和铝的平衡。 本发明还涉及一种表现出由所指示的方法产生的减少纱线效应的片状合金制品。

公开(公告)号：US06248193B1

公开(公告)日：2001-06-19

申请号：US09508172

申请日：2000-05-12

Applicant: Pizhi Zhao ,  Takeshi Moriyama ,  Noboru Hayashi ,  Kunihiro Yasunaga ,  Paul Wycliffe ,  David James Lloyd

Inventor： Pizhi Zhao ,  Takeshi Moriyama ,  Noboru Hayashi ,  Kunihiro Yasunaga ,  Paul Wycliffe ,  David James Lloyd

IPC: C22F104

CPC classification number: C22F1/047

Abstract: A continuously cast and rolled sheet of an aluminum alloy having Mg in a content of 3 to 6% by weight is annealed, followed by strain correction, heat and hold treatment at a given temperature between 240° C. and 340° C. for one hour or more, and slowly cooling treatment, to thereby provide an aluminum alloy sheet having enhanced resistance to stress corrosion cracking and improved shape fixability. The slowly cooling treatment is carried out at a cooling rate chosen from a preset cooling zone corresponding to a present temperature zone S defined in obliquely lined surround form in the accompanying drawing.

Abstract translation: 将具有3〜6重量％的Mg的铝合金的连续铸造和轧制板退火，然后在240℃〜340℃的给定温度下进行应变校正，热处理和保持处理，一个 小时以上，缓慢冷却处理，从而提供具有增强的耐应力腐蚀开裂性和改善的形状固定性的铝合金板。 缓慢冷却处理以选自对应于在附图中以倾斜排列的环绕形式限定的当前温度区域S的预设冷却区域中的冷却速率进行。

公开(公告)号：US20100022472A1

公开(公告)日：2010-01-28

申请号：US12573536

申请日：2009-10-05

Applicant: David James Lloyd

Inventor： David James Lloyd

IPC: A61K31/728 ,  A61P27/02

CPC classification number: A61K9/0048 ,  A61K31/728 ,  A61K31/737

Abstract: A liquid, eye-instillable preparation comprises a viscosity-enhancing agent comprised of one or both of sodium hyaluronate and chondroitin sulphate, a preservative comprised of polyhexanide, and one or more carriers in which the agent and the preservative are dispersed.

Abstract translation: 液体，滴眼液制剂包括由透明质酸钠和硫酸软骨素之一或两者组成的粘度增强剂，由聚己酰胺组成的防腐剂和其中分散有试剂和防腐剂的一种或多种载体。

公开(公告)号：US6086688A

公开(公告)日：2000-07-11

申请号：US901800

申请日：1997-07-28

Applicant: Don Allen Doutre ,  Iljoon Jin ,  David James Lloyd

Inventor： Don Allen Doutre ,  Iljoon Jin ,  David James Lloyd

IPC: C22C1/10 ,  C22C32/00 ,  F16D65/12 ,  F16D69/02 ,  C22C21/00 ,  F16D65/10

CPC classification number: F16D69/027 ,  C22C1/1036 ,  C22C32/0036 ,  F16D65/125 ,  B22F2998/00 ,  F16D2250/0007 ,  Y10T428/12486 ,  Y10T428/12736

Abstract: A metal-matrix composite material includes a matrix having magnesium in an amount of more than about 0.3 weight percent but no more than about 2.5 weight percent, an alloying element of about 0.8 to about 2.5 weight percent iron or from about 1.0 to about 2.5 weight percent manganese, and the balance aluminum and impurities. Dispersed throughout the matrix is a plurality of metal oxide particles present in an amount of more than about 5 volume percent but no more than about 25 volume percent of the total volume of the matrix and the particles. This material may be cast into casting molds. After casting is complete and during solidification of the matrix alloy, a high volume fraction of intermetallic particles is crystallized in the matrix alloy. The total of the volume fractions of the metal oxide particles and the intermetallic particles is from about 10 to about 40 volume percent, preferably from about 25 to about 40 volume percent.

Abstract translation: 金属基质复合材料包括具有大于约0.3重量％但不超过约2.5重量％的镁的基体，约0.8至约2.5重量％的铁或约1.0至约2.5重量％的合金元素 百分数锰，余量为铝和杂质。 在整个基质中分散的是多个金属氧化物颗粒，其量以基体和颗粒总体积的大于约5体积％但不超过约25体积％。 这种材料可以铸造成铸模。 铸造完成后，在基质合金固化过程中，基体合金中大量的金属间化合物颗粒结晶。 金属氧化物颗粒和金属间化合物颗粒的体积分数的总和为约10至约40体积％，优选约25至约40体积％。

公开(公告)号：US06406571B1

公开(公告)日：2002-06-18

申请号：US09568411

申请日：2000-05-11

Applicant: Alok Kumar Gupta ,  David James Lloyd ,  Pierre Henri Marois

Inventor： Alok Kumar Gupta ,  David James Lloyd ,  Pierre Henri Marois

IPC: C22F104

CPC classification number: C22F1/05 ,  C22F1/04 ,  C22F1/057

Abstract: A process of producing a shaped article suitable for use as an automotive body panel intended for finishing by painting and, if necessary, baking. The process comprises obtaining a sheet article made of an aluminum alloy of the 2000 or 6000 series in a T4 or T4P temper and that exhibits an increase in hardness after painting and optionally baking, shaping the sheet article by forming to produce an intermediate shaped article, and subjecting the intermediate shaped article to a thermal spiking treatment prior to painting and optionally baking. The thermal spiking treatment involves heating the intermediate shaped article from ambient temperature to a temperature in a range of 150 to 300° C. with or without holding at that temperature for a period of time to enhance the increase in hardness. The process may also include the painting and optionally baking step. The invention includes the shaped articles, either prior to or after painting and optionally baking, produced by the process. The invention makes it possible to provide shaped articles that develop good hardness when used as automotive panels and the like, and may thus make it possible to reduce the gauge (and therefore weight) of those articles. This can be done without having to modify conventional procedures of casting and rolling to gauge to produce coiled sheet products.

公开(公告)号：US06369347B1

公开(公告)日：2002-04-09

申请号：US09508174

申请日：2000-05-11

Applicant: Pizhi Zhao ,  Takeshi Moriyama ,  Noboru Hayashi ,  Kunihiro Yasunaga ,  Paul Wycliffe ,  David James Lloyd

Inventor： Pizhi Zhao ,  Takeshi Moriyama ,  Noboru Hayashi ,  Kunihiro Yasunaga ,  Paul Wycliffe ,  David James Lloyd

IPC: B23K1116

CPC classification number: C22C21/06

Abstract: An aluminum alloy sheet for automotive use is provided which comprises a starting aluminum alloy sheet which has an alloy composition containing from 2 to 6% by weight of Mg, 0.15 to 1.0% by weight of Fe and from 0.03 to 2.0% by weight Mn, and a surface layer disposed over one surface of the starting alloy sheet to be pressed against electrodes for use in welding, the surface layer containing a particulate intermetallic compound has a particle diameter of 0.5 &mgr;m or more and a density of 4,000 pieces of particles per one mm2 or more. The product alloy sheet ensure least deformation of an electrode and stable weldability by means of continuous resistance spot welding.

Abstract translation: 本发明提供一种汽车用铝合金板材，其具有含有2〜6重量％的Mg，0.15〜1.0重量％的Fe和0.03〜2.0重量％的Mn的合金组成的起始铝合金板， 以及设置在起始合金板的一个表面上以被压靠在用于焊接的电极上的表面层，含有颗粒状金属间化合物的表面层的粒径为0.5μm以上，密度为4,000个颗粒 mm2以上。 产品合金板通过连续电阻点焊确保电极的最小变形和稳定的焊接性。

公开(公告)号：US07029543B2

公开(公告)日：2006-04-18

申请号：US10863557

申请日：2004-06-08

Applicant: Michael Jackson Bull ,  David James Lloyd

Inventor： Michael Jackson Bull ,  David James Lloyd

IPC: C22F1/05

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

Abstract: A process is described for producing an aluminum alloy sheet having excellent bendability for use in forming panels for automobiles. An aluminum alloy containing 0.50 to 0.75 by weight Mg, 0.7 to 0.85% by weight Si, 0.1 to 0.3% by weight Fe, 0.15 to 0.35% by weight Mn, and the balance Al and incidental impurities, is used and is semi-continuously cast into ingot. The cast alloy ingot is subjected to hot rolling and cold rolling, followed by solution heat treatment of the formed sheet. The heat treated sheet is quenched to a temperature of about 60–120° C. and the sheet is then coiled. This coil is then pre-aged by slowly cooling the coil from an initial temperature of about 60–120° C. to room temperature at a cooling rate of less than 10° C./hr.

公开(公告)号：US06780259B2

公开(公告)日：2004-08-24

申请号：US10138844

申请日：2002-05-02

Applicant: Michael Jackson Bull ,  David James Lloyd

Inventor： Michael Jackson Bull ,  David James Lloyd

IPC: C22F105

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

Abstract: A process is described for producing an aluminum alloy sheet having excellent bendability for use in forming panels for automobiles. An aluminum alloy containing 0.50 to 0.75 by weight Mg, 0.7 to 0.85% by weight Si, 0.1 to 0.3% by weight Fe, 0.15 to 0.35% by weight Mn, and the balance Al and incidental impurities, is used and is semi-continuously cast into ingot. The cast alloy ingot is subjected to hot rolling and cold rolling, followed by solution heat treatment of the formed sheet. The heat treated sheet is quenched to a temperature of about 60-120° C. and the sheet is then coiled. This coil is then pre-aged by slowly cooling the coil from an initial temperature of about 60-120° C. to room temperature at a cooling rate of less than 10° C./hr.

Abstract translation: 描述了一种用于制造用于形成用于汽车的面板的具有优异的弯曲性的铝合金板的方法。 使用含有0.50〜0.75重量％的Mg，0.7〜0.85重量％的Si，0.1〜0.3重量％的Fe，0.15〜0.35重量％的Mn，余量为Al和附带的杂质，并且是半连续的 铸成锭。 对铸造合金锭进行热轧和冷轧，然后对成型片材进行固溶热处理。 将热处理的片材淬火至约60-120℃的温度，然后将片材卷绕。 然后通过以小于10℃/小时的冷却速度将线圈从约60-120℃的初始温度缓慢冷却至室温，从而对该线圈进行预老化。