公开(公告)号：US09605376B2

公开(公告)日：2017-03-28

申请号：US14138109

申请日：2013-12-22

Applicant: Pravin Mistry

Inventor： Pravin Mistry

IPC: B23K10/00 ,  D06M10/02 ,  D06M10/00

CPC classification number: D06M10/025 ,  B23K10/00 ,  B23K26/348 ,  D06M10/005

Abstract: Material treatment is effected in a treatment region by at least two energy sources, such as (i) an atmospheric pressure (AP) plasma and (ii) an ultraviolet (UV) laser directed into the plasma and optionally onto the material being treated. During processing, the material being treated may remain substantially at room temperature. Precursor materials may be dispensed before, and finishing material may be dispensed after treatment. Precursors may be combined in the plasma, allowing for in situ synthesis and dry treatment of the material. Electrodes (e1, e2) for generating the plasma may comprise two spaced-apart rollers which, when rotating, advance the material through a treatment region. Nip rollers adjacent the electrode rollers define a semi-airtight cavity, and may have a metallic outer layer. Loose fibers and fragile membranes may be supported on a carrier membrane, which may be doped. Individual fibers may be processed. Electrostatic deposition may be performed. Topographical changes may be effected. Various laser configurations and parameters are disclosed.

公开(公告)号：US5902498A

公开(公告)日：1999-05-11

申请号：US822829

申请日：1997-03-24

Applicant: Pravin Mistry ,  Shengzhong Liu ,  Manuel C. Turchan

Inventor： Pravin Mistry ,  Shengzhong Liu ,  Manuel C. Turchan

IPC: F16H41/28 ,  B01J2/00 ,  B01J19/12 ,  B01J37/34 ,  B05D7/24 ,  B22F9/14 ,  B22F9/30 ,  B23K23/00 ,  B23K26/00 ,  B23K26/14 ,  B23K35/02 ,  B23K35/24 ,  B23K35/34 ,  B23K35/40 ,  C01B13/18 ,  C01B21/064 ,  C01B21/076 ,  C01B31/30 ,  C01B33/18 ,  C01F5/02 ,  C01F5/06 ,  C01F7/30 ,  C01F7/44 ,  C01F11/02 ,  C01F17/00 ,  C01G23/04 ,  C01G49/00 ,  C04B2/10 ,  B23K26/10

CPC classification number: C04B2/10 ,  B01J2/00 ,  B01J37/349 ,  B22F9/30 ,  B23K1/0056 ,  B23K23/00 ,  B23K35/0222 ,  B23K35/0238 ,  B23K35/0244 ,  B23K35/0255 ,  B23K35/28 ,  B23K35/284 ,  B23K35/286 ,  B23K35/288 ,  B23K35/34 ,  B82Y30/00 ,  C01B13/18 ,  C01F5/06 ,  C01F7/30 ,  C01F7/44 ,  B23K2201/001 ,  B23K2203/04 ,  B23K35/025 ,  C01P2004/64 ,  F16H41/28 ,  Y10S977/777 ,  Y10T29/49321

Abstract: Thermal stresses normally associated with joining are alleviated by a low temperature joining technique of the present invention. A low-temperature joining material is applied (as a paste, or as a powder spray, or as a tape, or as a paint, or as a putty) at the junction of two components desired to be joined together. Energy from a source such as a laser beam (for example an Nd:YAG or a CO.sub.2 laser) or by a flame, arc, plasma, or the like, is either "walked" along the joining material to react the entire amount of joining material, or the joining material is self-sustaining and simply requires igniting a selected portion of the joining material by the energy source. In an exemplary application of the process, vanes are brazed to the bowl and/or to the shroud of an automatic transmission bowl (impeller or turbine) assembly, preferably using the low-temperature joining material. Systems for delivering the joining material and the energy are described. The fabrication of hollow vanes is described. The fabrication of shroudless bowl components and stator components subsuming the function of the shroud are described.

Abstract translation: 通过本发明的低温接合技术可以缓解通常与接合相关的热应力。 在期望接合在一起的两种组分的接合处施加低温接合材料（作为糊剂，或作为粉末喷雾，或作为胶带，或作为油漆，或作为油灰）。 源自诸如激光束（例如Nd：YAG或CO2激光器）或火焰，电弧，等离子体等的能量沿着接合材料“走动”以反应整个量的接合 材料或接合材料是自维持的，并且仅需要通过能量源点燃连接材料的选定部分。 在该方法的示例性应用中，叶片钎焊到自动变速箱（叶轮或涡轮机）组件的碗和/或护罩上，优选地使用低温接合材料。 描述了用于传送接合材料和能量的系统。 描述了中空叶片的制造。 描述了包含护罩功能的无罩碗部件和定子部件的制造。

公开(公告)号：US5648127A

公开(公告)日：1997-07-15

申请号：US465589

申请日：1995-06-05

Applicant: Manuel C. Turchan ,  Pravin Mistry

Inventor： Manuel C. Turchan ,  Pravin Mistry

IPC: B81C99/00 ,  C23C14/06 ,  C23C14/22 ,  C23C14/28 ,  C23C16/26 ,  C23C16/27 ,  C23C16/44 ,  C23C26/00 ,  C30B23/02 ,  C30B25/10 ,  C30B25/18 ,  C08J7/18

CPC classification number: C30B25/18 ,  C23C14/0605 ,  C23C14/22 ,  C23C14/28 ,  C23C16/26 ,  C23C16/27 ,  C23C16/4418 ,  C23C26/00 ,  C30B23/02 ,  C30B25/105 ,  F41A21/04 ,  F16C33/62 ,  Y10S427/103 ,  Y10S427/104

Abstract: Energy, such as from one or more lasers, is directed at the surface of a substrate to mobilize and vaporize a constituent element (e.g., carbide) within the substrate (e.g., steel). The vaporized constituent element is reacted by the energy to alter its physical structure (e.g., from carbon to diamond) to that of a composite material which is diffused back into the substrate as a composite material. An additional secondary element, which can be the same as or different from the constituent element, may optionally be directed (e.g., sprayed) onto the substrate to augment, enhance and/or modify the formation of the composite material, as well as to supply sufficient or additional material for fabricating one or more coatings on the surface of the substrate. The process can be carried out in an ambient environment (e.g., without a vacuum), and without pre-heating or post-cooling of the substrate. Articles formed by the disclosed processes are described, including three-dimensional objects.

Abstract translation: 诸如来自一个或多个激光器的能量被引导到衬底的表面以便移动和汽化衬底（例如钢）内的构成元件（例如，碳化物）。 蒸发的构成元素通过能量反应以改变其物理结构（例如，从碳到金刚石）到​​作为复合材料漫反射到基底中的复合材料的物理结构。 另外可以与构成元件相同或不同的次要元件可任选地被引导（例如喷涂）到基底上以增强，增强和/或改变复合材料的形成，以及供应 用于在衬底的表面上制造一个或多个涂层的足够的或附加的材料。 该方法可以在周围环境（例如，没有真空）中进行，并且不需要对基材进行预热或后冷却。 描述由所公开的方法形成的物品，包括三维物体。

公开(公告)号：US20130001204A1

公开(公告)日：2013-01-03

申请号：US13536257

申请日：2012-06-28

Applicant: Pravin Mistry ,  Jahr Turchan

Inventor： Pravin Mistry ,  Jahr Turchan

IPC: B23K10/00 ,  B05C9/12 ,  B05D3/10

CPC classification number: D06M10/025 ,  B05D1/60 ,  B05D3/06 ,  B05D3/142 ,  B05D3/145 ,  D06M10/005 ,  H01H1/24 ,  H05H1/34

Abstract: Material treatment is effected in a treatment region by at least two energy sources, such as (i) an atmospheric pressure plasma and (ii) an ultraviolet laser directed into the plasma and optionally onto the material being treated. Precursor materials may be dispensed before, and finishing material may be dispensed after treatment. Electrodes for generating the plasma may comprise two spaced-apart rollers. Nip rollers adjacent the electrode rollers define a semi-airtight cavity, and may have a metallic outer layer.

Abstract translation: 材料处理在处理区域通过至少两种能量源进行，例如（i）大气压等离子体和（ii）引导到等离子体中的紫外线激光和任选地被引导到待处理的材料上。 前体材料可以在之前分配，并且整理材料可以在处理后分配。 用于产生等离子体的电极可以包括两个间隔开的辊。 邻近电极辊的压辊定义了半气密腔，并且可以具有金属外层。

公开(公告)号：US5731046A

公开(公告)日：1998-03-24

申请号：US241930

申请日：1994-05-12

Applicant: Pravin Mistry ,  Manuel C. Turchan

Inventor： Pravin Mistry ,  Manuel C. Turchan

IPC: C04B41/80 ,  B01J19/12 ,  B23K26/06 ,  B81C99/00 ,  C21D1/09 ,  C23C14/06 ,  C23C14/22 ,  C23C14/28 ,  C23C16/26 ,  C23C16/27 ,  C23C16/44 ,  C23C20/06 ,  C23C26/00 ,  C30B23/02 ,  C30B25/02 ,  C30B25/10 ,  C30B25/18 ,  C30B29/04 ,  H01S3/00 ,  B05D3/06

CPC classification number: B23K26/0604 ,  B23K26/0622 ,  C23C14/0605 ,  C23C14/22 ,  C23C14/28 ,  C23C16/26 ,  C23C16/27 ,  C23C16/4418 ,  C30B23/02 ,  C30B25/105 ,  C30B25/18

Abstract: Energy, such as from three different lasers, is directed at the surface of a substrate to mobilize and vaporize a carbon constituent element (e.g., carbide) within the substrate (e.g., steel). The vaporized constituent element is reacted by the energy to alter its physical structure (e.g., from carbon to diamond) to that of a composite material which is diffused back into the substrate as a composite material. An additional secondary element, which also contains carbon, may optionally be directed (e.g., sprayed) onto the substrate to augment, enhance and/or modify the formation of the composite material, as well as to supply sufficient or additional material for fabricating a diamond or diamond-like coating on the surface of the substrate. The process can be carried out in an ambient environment (e.g., without a vacuum), and without pre-heating or post-cooling of the substrate.

Abstract translation: 诸如来自三种不同激光器的能量被引导到衬底的表面以便在衬底（例如，钢）内移动和汽化碳构成元件（例如碳化物）。 蒸发的构成元素通过能量反应以改变其物理结构（例如，从碳到金刚石）到​​作为复合材料漫反射到基底中的复合材料的物理结构。 另外还含有碳的次要元素可以任选地被引导（例如喷涂）到基底上以增强，增强和/或改变复合材料的形成，以及提供用于制造金刚石的足够的或附加的材料 或金刚石样涂层。 该方法可以在周围环境（例如，没有真空）中进行，并且不需要对基材进行预热或后冷却。

公开(公告)号：US5643641A

公开(公告)日：1997-07-01

申请号：US465583

申请日：1995-06-05

Applicant: Manuel C. Turchan ,  Pravin Mistry

Inventor： Manuel C. Turchan ,  Pravin Mistry

IPC: B81C99/00 ,  C23C14/06 ,  C23C14/22 ,  C23C14/28 ,  C23C16/26 ,  C23C16/27 ,  C23C16/44 ,  C23C26/00 ,  C30B23/02 ,  C30B25/10 ,  C30B25/18 ,  C23C16/48

CPC classification number: C30B25/18 ,  C23C14/0605 ,  C23C14/22 ,  C23C14/28 ,  C23C16/26 ,  C23C16/27 ,  C23C16/4418 ,  C23C26/00 ,  C30B23/02 ,  C30B25/105 ,  F41A21/04 ,  F16C33/62 ,  Y10S427/103 ,  Y10S427/104

Abstract: Energy, such as from one or more lasers, is directed at the surface of a substrate to mobilize and vaporize a constituent element (e.g., carbide) within the substrate (e.g., steel). The vaporized constituent element is reacted by the energy to alter its physical structure (e.g., from carbon to diamond) to that of a composite material which is diffused back into the substrate as a composite material. The method of the present invention includes the additional steps of using the energy to move a carbon constituent element in a sub-surface zone of the substrate towards the surface of the substrate, vaporizing selected amounts of the carbon constituent element to produce a vaporized carbon constituent element, reacting the vaporized carbon constituent element to modify its physical structure and properties, reacting the vaporized carbon constituent element to modify its physical structure and properties, and fabricating the diamond coating from the reacted vaporized carbon constituent element.

Abstract translation: 诸如来自一个或多个激光器的能量被引导到衬底的表面以便移动和汽化衬底（例如钢）内的构成元件（例如，碳化物）。 蒸发的构成元素通过能量反应以改变其物理结构（例如，从碳到金刚石）到​​作为复合材料漫反射到基底中的复合材料的物理结构。 本发明的方法包括使用能量将基底的亚表面区域中的碳构成元素朝向基底的表面移动的附加步骤，蒸发选定量的碳构成元素以产生气化碳成分 使蒸发的碳组成元件反应以改变其物理结构和性质，使蒸发的碳组成元素反应以改变其物理结构和性质，以及从反应的气化碳构成元素制备金刚石涂层。

公开(公告)号：US5516500A

公开(公告)日：1996-05-14

申请号：US287726

申请日：1994-08-09

Applicant: Shengzhong Liu ,  Pravin Mistry

Inventor： Shengzhong Liu ,  Pravin Mistry

IPC: C01B31/06 ,  C30B1/00 ,  C30B1/02 ,  C30B29/04

CPC classification number: C01B31/06 ,  C30B1/00 ,  C30B29/04

Abstract: Diamond materials are formed by sandwiching a carbon-containing material in a gap between two electrodes. A high-amperage electric current is applied between the two electrode plates so as cause rapid-heating of the carbon-containing material. The current is sufficient to cause heating of the carbon-containing material at a rate of at least approximately 5,000.degree. C./sec, and need only be applied for a fraction of a second to elevate the temperature of the carbon-containing material at least approximately 1000.degree. C. Upon terminating the current, the carbon-containing material is subjected to rapid-quenching (cooling). This may take the form of placing one or more of the electrodes in contact with a heat sink, such as a large steel table. The carbon-containing material may be rapidly-heated and rapidly-quenched (RHRQ) repeatedly (e.g., in cycles), until a diamond material is fabricated from the carbon-containing material. The process is advantageously performed in an environment of a "shielding" (inert or non-oxidizing) gas, such as Argon (At), Helium (He), or Nitrogen (N.sub.2). In an embodiment of the invention, the carbon-containing material is polystyrene (e.g., a film) or glassy carbon (e.g., film or powder). In another embodiment of the invention, the carbon-containing material is a polymer, fullerene, amorphous carbon, graphite, or the like. In another embodiment of the invention, one of the electrodes is substrate upon which it is desired to form a diamond coating, and the substrate itself is used as one of the two electrodes. This would be useful for forming a thin-film diamond coating on a cutting tool insert.

Abstract translation: 通过将含碳材料夹在两个电极之间的间隙中形成金刚石材料。 在两个电极板之间施加高电流电流，以使含碳材料快速加热。 该电流足以使至少约5,000℃/秒的速率加热含碳材料，并且仅需要施加一小时，以至少将含碳材料的温度升高至少 约1000℃。在终止电流时，对含碳材料进行快速淬火（冷却）。 这可以采取将一个或多个电极放置在与散热器（例如大型钢台）接触的形式。 可以重复地（例如，循环）将含碳材料快速加热并快速骤冷（RHRQ），直到由含碳材料制造金刚石材料。 该方法有利地在诸如氩气（At），氦气（He）或氮气（N 2）的“屏蔽”（惰性或非氧化性）气体的环境中进行。 在本发明的一个实施方案中，含碳材料是聚苯乙烯（例如薄膜）或玻璃碳（例如薄膜或粉末）。 在本发明的另一个实施方案中，含碳材料是聚合物，富勒烯，无定形碳，石墨等。 在本发明的另一个实施例中，电极之一是需要形成金刚石涂层的衬底，并且衬底本身被用作两个电极之一。 这对于在切削工具刀片上形成薄膜金刚石涂层是有用的。

公开(公告)号：US5168742A

公开(公告)日：1992-12-08

申请号：US634194

申请日：1991-01-17

Applicant: Peter J. Heyes ,  Stephen J. Digby ,  Steven P. Williams ,  Kevin M. Ambrose ,  Pravin Mistry

Inventor： Peter J. Heyes ,  Stephen J. Digby ,  Steven P. Williams ,  Kevin M. Ambrose ,  Pravin Mistry

IPC: B32B1/00 ,  B21C3/02 ,  B21D20060101 ,  B21D22/20 ,  B21D22/28 ,  B21D22/30 ,  B32B15/08 ,  B32B15/20

CPC classification number: B21D22/286 ,  B21D22/201 ,  B21D22/28 ,  B21D22/30 ,  Y10T428/131

Abstract: A wall ironing ring (8, 11, 14) for use in cooperation with a punch (1) to reduce the thickness of a sidewall of a cup (17) drawn from a laminate of a polyester film and sheet aluminum or sheet aluminum alloy has a frusto conical entry surface (24) to the ring which converges at an angle between 1.degree. and 4.degree. to a central axis perpendicular to the plane of the ring and terminates at a land of short length, measured at said axis; and divergent exit surface extends from said land at an angle in the range from 5.degree. to 15.degree.. The ironing ring may be made from a material having a thermal conductivity greater than 50 W/m.degree.C. used in cooperation with a like ring of smaller land diameter held apart from the first ring by a spacer (7) in which coolant is applied to the cup.

公开(公告)号：US09309619B2

公开(公告)日：2016-04-12

申请号：US13536257

申请日：2012-06-28

Applicant: Pravin Mistry ,  Jahr Turchan

Inventor： Pravin Mistry ,  Jahr Turchan

IPC: B23K9/00 ,  B23K9/02 ,  D06M10/02 ,  D06M10/00 ,  H05H1/34

CPC classification number: D06M10/025 ,  B05D1/60 ,  B05D3/06 ,  B05D3/142 ,  B05D3/145 ,  D06M10/005 ,  H01H1/24 ,  H05H1/34

Abstract: Material treatment is effected in a treatment region by at least two energy sources, such as (i) an atmospheric pressure plasma and (ii) an ultraviolet laser directed into the plasma and optionally onto the material being treated. Precursor materials may be dispensed before, and finishing material may be dispensed after treatment. Electrodes for generating the plasma may comprise two spaced-apart rollers. Nip rollers adjacent the electrode rollers define a semi-airtight cavity, and may have a metallic outer layer.

Abstract translation: 材料处理在处理区域通过至少两种能量源进行，例如（i）大气压等离子体和（ii）引导到等离子体中的紫外线激光和任选地被引导到待处理的材料上。 前体材料可以在之前分配，并且整理材料可以在处理后分配。 用于产生等离子体的电极可以包括两个间隔开的辊。 邻近电极辊的压辊定义了半气密腔，并且可以具有金属外层。

公开(公告)号：US06203865B1

公开(公告)日：2001-03-20

申请号：US09357621

申请日：1999-07-20

Applicant: Andrzej R. Badzian ,  Rustum N. Roy ,  Pravin Mistry ,  Manuel C. Turchan

Inventor： Andrzej R. Badzian ,  Rustum N. Roy ,  Pravin Mistry ,  Manuel C. Turchan

IPC: C23C1648

CPC classification number: C23C16/27 ,  C23C16/483

Abstract: A method for producing well-crystallized adherent diamond layers on WC—Co substrates. An array of focused laser beams is scanned across the WC—Co sample. Useful lasers include the excimer, YAG:Nd, and carbon dioxide types. The process is conducted in open air with carbon dioxide and nitrogen gases delivered for shrouding the substrate. A luminous plasma is found a few mm above the WC—Co insert. The duration of the deposition process in a typical case is approximately 40 s. This typically gives 20-40 &mgr;m thick coatings. The vertical growth rate is about 1 &mgr;m/s.

Abstract translation: 一种用于在WC-Co基底上生产良好结晶的粘附金刚石层的方法。 在WC-Co样品上扫描聚焦激光束阵列。 有用的激光器包括准分子，YAG：Nd和二氧化碳类型。 该过程在露天进行，二氧化碳和氮气输送用于覆盖基材。 发现等离子体在WC-Co插入物上方几毫米。 在典型情况下，沉积过程的持续时间约为40秒。 这通常会给出20-40毫米厚的涂层。 垂直生长速度约为1mum / s。