公开(公告)号：US5964963A

公开(公告)日：1999-10-12

申请号：US465266

申请日：1995-06-05

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

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

IPC: B01J37/34 ,  B22F1/00 ,  B23K23/00 ,  B23K26/14 ,  B23K35/02 ,  B23K35/24 ,  B23K35/26

CPC classification number: B82Y30/00 ,  B01J37/349 ,  B22F1/0018 ,  B23K23/00 ,  B23K26/144 ,  B23K35/0222 ,  B23K35/025 ,  B23K35/24 ,  B23K35/26 ,  B23K35/262 ,  B23K35/28 ,  B23K35/282 ,  B23K35/284 ,  B23K35/30 ,  B23K35/3006 ,  B23K35/3013 ,  B23K2201/001 ,  B23K2203/04 ,  B23K35/0244 ,  Y10S977/777

Abstract: Thermal stresses normally associated with brazing are alleviated by a low temperature brazing technique of the present invention. A low-temperature brazing paste, preferably suitable to be melted at temperatures of no greater than 200.degree. C. (e.g., 100-200.degree. C.), containing nanoscale (.ltoreq.100 nanometer) size particles of gold, cadmium, copper, zinc, tin, lead, silver, silicon, chromium, cobalt, antimony, bismuth, aluminum, iron, magnesium, nitrogen, carbon, boron, and alloys and composites of these materials, is applied as a bead or as a powder spray at the junction of two components desired to be joined together. Energy from a source such as a laser beam (for example a CO.sub.2 laser, an Nd-Yag laser or an excimer laser), flame, arc, plasma, or the like, is "walked" along the brazing material. The energy beam is sufficient to cause melting and re-crystallization of the nanoscale-particle-containing brazing paste. In an exemplary application of the process, blades (vanes) are brazed to the housing and/or to the shroud of an automatic transmission impeller assembly, preferably using the low-temperature brazing paste containing nanoscale (.ltoreq.100 nanometer) size particles of gold, cadmium, copper and/or zinc, or other suitable nanoscale brazing materials.

Abstract translation: 通过本发明的低温钎焊技术可以缓解通常与钎焊相关的热应力。 低温钎焊膏，优选适于在不超过200℃（例如，100-200℃）的温度下熔化，其含有纳米级（

公开(公告)号：US5826431A

公开(公告)日：1998-10-27

申请号：US596827

申请日：1996-02-05

Applicant: Yoshinobu Makino ,  Kiyoshi Yamada ,  Hiroshi Matsui ,  Yoshihiro Aburatani ,  Yamato Kaminaka ,  Hiroshi Kubo ,  Hiroaki Okamoto

Inventor： Yoshinobu Makino ,  Kiyoshi Yamada ,  Hiroshi Matsui ,  Yoshihiro Aburatani ,  Yamato Kaminaka ,  Hiroshi Kubo ,  Hiroaki Okamoto

IPC: F02C7/00 ,  B23K26/24 ,  B23K26/28 ,  B23K26/38 ,  F23R3/00 ,  F23R3/06 ,  F23R3/42 ,  F02G3/00

CPC classification number: F23R3/002 ,  B23K26/244 ,  B23K26/282 ,  B23K26/384 ,  B23K26/388 ,  B23K26/389 ,  B23K26/40 ,  B23K2201/001 ,  B23K2203/26 ,  B23P2700/13 ,  F05B2260/202 ,  Y10T29/4932 ,  Y10T29/49346

Abstract: Provided are a gas turbine multi-hole film-cooled combustor liner, which can be manufactured with improved accuracy in shape and position of cooling holes in a very short time, ensuring desirable buckling strength and satisfactory cooling performance. A planar flat member is curved to form a liner shell of a cylindrical shape, the cylindrical member is welded in the longitudinal direction thereof to form a cylindrical shell. Then a wavy configuration and a corrugated configuration are formed on the cylindrical shell by a hydro-bulging method, cooling holes are formed through the liner shell by laser drilling at or near wave crest portions of the wavy configuration of the liner shell, and inner rings are attached to the liner shell by resistance spot welding or vacuum brazing.

Abstract translation: 本发明提供一种燃气轮机多孔薄膜冷却燃烧器衬套，能够在非常短的时间内提高冷却孔的形状和位置的精度，确保理想的翘曲强度和令人满意的冷却性能。 平面平面构件弯曲以形成圆柱形的衬套，圆柱形构件沿其纵向方向焊接以形成圆柱形壳体。 然后通过水力膨胀方法在圆柱形壳体上形成波状结构和波纹状结构，通过在衬套壳的波状构造的波峰部分处或附近通过激光钻孔在衬套壳体上形成冷却孔，并且内圈 通过电阻点焊或真空钎焊连接到衬套外壳。

公开(公告)号：US5762727A

公开(公告)日：1998-06-09

申请号：US843175

申请日：1997-04-14

Applicant: Gerald Richard Crawmer ,  John Francis Nolan

Inventor： Gerald Richard Crawmer ,  John Francis Nolan

IPC: B23P6/00 ,  B23K9/04 ,  B23K9/14 ,  B23K9/16 ,  B23K31/00 ,  B23K35/00 ,  B23K35/30 ,  C21D9/50 ,  B23K31/02

CPC classification number: B23P6/007 ,  B23K35/004 ,  B23K9/044 ,  B23K9/164 ,  C21D9/50 ,  B23K2201/001 ,  B23K35/3053 ,  Y10T428/12653 ,  Y10T428/12965

Abstract: A method for weld repairing an article formed of a low-alloy steel, such as a steam turbine component. The method generally includes the step of depositing a first weld repair (14) on a surface of the article, during which a hard heat-affected zone (HAZ) (18) having a fine grain size is formed in the article beneath the surface on which the weld repair (14) is deposited. The first weld repair (14) and at least a portion of the HAZ (18) adjacent the first weld repair (14) are then locally heat treated at a temperature above a critical temperature A.sub.1 of the alloy from which the article is formed. As a result of this localized heat treatment, the original grain structures of the first weld repair (14) and the HAZ (18) are entirely replaced with a fine-grain structure with acceptable hardness. Thereafter, at least one additional weld repair layer (16) is deposited on the first weld repair (14). The first weld repair (14) is intentionally formed to have a sufficient thickness to avoid formation of additional HAZ in the surface of the article as the additional weld repair layer (16) is deposited. Without a post-weld heat treatment of the additional weld repair layer (16) or the article as a whole, the method yields a repair weld (12) that exhibits properties that are comparable to and can even exceed that of the base material (10) of the article.

公开(公告)号：US5704765A

公开(公告)日：1998-01-06

申请号：US668791

申请日：1996-06-24

Applicant: Dennis Ray Amos ,  Sallie Ann Bachman ,  Jianqiang Chen

Inventor： Dennis Ray Amos ,  Sallie Ann Bachman ,  Jianqiang Chen

IPC: B23K9/04 ,  B23K35/00 ,  B23K35/30 ,  F01D5/00 ,  F01D5/28 ,  F01D5/02 ,  B23P15/00

CPC classification number: B23K9/044 ,  B23K35/004 ,  B23K35/308 ,  F01D5/005 ,  F01D5/28 ,  B23K2201/001 ,  Y10T29/49318 ,  Y10T29/4932

Abstract: A low pressure steam turbine and generator low alloy steel disc rotors with extended useful life properties. A ring member of the disc rotor has disposed on it multiple weld layers of ferrous material, forming a weld region. The ring member is made of a low alloy ferrous metal alloy having less than about six weight percent alloying ingredients including chromium. The chromium content of the weld region increases overall from a portion of the weld region adjacent to the ring member to a portion of the weld region farthest from the ring member. This general increase is accomplished using weld metal of a single chromium concentration of between 9% and 17% chromium and varying the welding parameters.

Abstract translation: 低压蒸汽轮机和发电机低合金钢盘式转子，使用寿命延长。 圆盘转子的环形构件设置有多个铁质材料的焊接层，形成焊接区域。 环构件由具有小于约6重量％的包含铬的合金成分的低合金黑色金属合金制成。 焊接区域的铬含量总体上从邻近环形构件的焊接区域的一部分增加到距环形构件最远的焊接区域的一部分。 这种普遍的增加是使用铬酸铬浓度在9％至17％之间的焊接金属来完成的，并改变焊接参数。

公开(公告)号：US5551623A

公开(公告)日：1996-09-03

申请号：US390317

申请日：1995-02-17

Applicant: Andre C. F. Collot ,  Jean-Pierre Ferte ,  Roger Jolly

Inventor： Andre C. F. Collot ,  Jean-Pierre Ferte ,  Roger Jolly

IPC: B23K11/04 ,  B23K20/12 ,  B23K37/04 ,  F01D5/12

CPC classification number: B23K20/129 ,  B23K20/1205 ,  B23K2201/001

Abstract: Process for welding two blade parts (9, 10) by a means such as a linear friction welding machine, in which a collar or flange (15) of material to be sacrificed is placed between the contact surfaces (16) or around the latter in order to increase the heat produced by the friction at the leading and trailing edges of the blade. As a result of this arrangement it is possible to start with two blade parts (9, 10) having the dimensions of the finished product, possibly with the exception of the area around the contact surfaces, so that the final machining is very significantly reduced.

Abstract translation: 通过诸如线性摩擦焊接机的装置焊接两个刀片部件（9,10）的工艺，其中要牺牲的材料的套环或凸缘（15）被放置在接触表面（16）之间或者围绕其 以增加由叶片的前缘和后缘处的摩擦产生的热量。 作为这种布置的结果，可以从具有成品尺寸的两个刀片部件（9,10）开始，可能除了接触表面周围的区域之外，使得最终加工非常显着地减少。

公开(公告)号：US5479705A

公开(公告)日：1996-01-02

申请号：US255764

申请日：1994-06-07

Applicant: John O. Fowler ,  Brian Richardson

Inventor： John O. Fowler ,  Brian Richardson

IPC: B21D26/055 ,  B21D53/04 ,  B23K20/02 ,  B23K20/18 ,  B23P15/04

CPC classification number: B21D26/055 ,  B21D53/045 ,  B23K20/023 ,  B23K20/18 ,  B23K2201/001 ,  Y10T29/49339

Abstract: A plurality of titanium sheets are assembled into a stack. At least one of the sheets is provided with a stop off material on one of its surfaces to prevent diffusion bonding at predetermined positions. The edges of the sheets are welded together and a pipe is welded to the stack to interconnect with the stop off material to form a sealed assembly. The assembly is heated and externally pressurized to diffusion bond the sheets together. The integral structure so formed is heated and opposite ends of the integral structure are twisted relatively to contour the integral structure to a predetermined shape. The integral structure is internally pressurized to break the adhesive bonds. The integral structure is heated and internally pressurized to superplastically form one sheet to produce an article, e.g. a fan blade.

Abstract translation: 将多个钛片组装成堆叠。 至少一个片材在其一个表面上设置有停止材料，以防止在预定位置的扩散接合。 板的边缘被焊接在一起，并且管被焊接到堆叠以与停止材料互连以形成密封组件。 组件被加热和外部加压以将片材扩散粘合在一起。 这样形成的整体结构被加热，并且整体结构的相对端被相对扭转以将整体结构轮廓化为预定的形状。 整体结构内部加压以破坏粘结。 整体结构被加热并在内部被加压以超塑性地形成一片以产生制品，例如。 风扇叶片。

公开(公告)号：US5160822A

公开(公告)日：1992-11-03

申请号：US701403

申请日：1991-05-14

Applicant: Stephen Aleshin

Inventor： Stephen Aleshin

IPC: B23K26/34 ,  F01D5/20

CPC classification number: F01D5/20 ,  B23K26/342 ,  B23K35/0244 ,  B23K35/0255 ,  C23C24/10 ,  B23K2201/001 ,  F05D2250/34

Abstract: A method for depositing material on a tip of a gas turbine engine airfoil includes the steps of: selecting a linear principal weld path across the airfoil tip relative to an airfoil contour at the tip; selecting a weld bead stitch pattern to substantially completely cover the airfoil tip with the stitch pattern crisscrossing the linear principal weld path between opposite edges of the airfoil and advancing across the airfoil in the direction of the linear principal weld path; and depositing at least a first layer of tip material corresponding to the weld bead stitch pattern and the linear principal weld path by welding.

Abstract translation: 一种用于在燃气涡轮发动机翼型件的尖端上沉积材料的方法包括以下步骤：选择横跨翼型端头的线性主焊缝相对于尖端处的翼型轮廓; 选择焊缝图案基本上完全覆盖翼型头，其中缝合图案与翼型件的相对边缘之间的线性主要焊接路径交叉并沿线性主要焊接路径的方向前进穿过翼型; 以及通过焊接沉积对应于焊道缝合图案和线性主焊缝路径的至少第一层尖端材料。

公开(公告)号：US4903888A

公开(公告)日：1990-02-27

申请号：US190324

申请日：1988-05-05

Applicant: Robert E. Clark ,  Dennis R. Amos

Inventor： Robert E. Clark ,  Dennis R. Amos

IPC: F01D5/30 ,  B23K9/04 ,  B23K9/23 ,  B23K15/00 ,  B23K26/34 ,  F01D5/00 ,  F01D25/00

CPC classification number: B23P6/007 ,  B23K15/0086 ,  B23K26/32 ,  B23K26/342 ,  B23K35/0255 ,  B23K35/0272 ,  B23K35/308 ,  B23K9/046 ,  B23K9/23 ,  C22C38/12 ,  C22C38/18 ,  C22C38/22 ,  C22C38/24 ,  F01D5/005 ,  B23K2201/001 ,  B23K2203/50 ,  Y10T29/49318 ,  Y10T29/49746

Abstract: Novel methods for repairing worn surfaces of turbine rotors, are disclosed. These methods include depositing a first layer of weld metal on a worn surface of the component, whereby a heat-affected zone is created. A second layer of weld metal is then deposited over the first layer using a greater amount of heat to temper at least a portion of the heat-affected zone produced by the first layer. The preferred embodiments include the use of gas tungsten arc welding for producing fine-grain size and more creep resistance, especially in the weld and heat-affected zone. The resulting build-up can be machined, for example into a blade fastening to produce a component having properties equal to or better than the base-metal alloy. The invention also provides a longer lasting turbine system, including rotors which have serrated steeples that are more resistant to failure.

Abstract translation: 公开了用于修复涡轮转子磨损表面的新颖方法。 这些方法包括在组件的磨损表面上沉积第一层焊接金属，由此产生热影响区。 然后使用更大量的热量来使第一层上的第二层焊接金属沉积在第一层上，以回火由第一层产生的热影响区域的至少一部分。 优选的实施方案包括使用气体钨电弧焊接来产生细晶粒度和更大的抗蠕变性，特别是在焊接和热影响区域中。 所得到的堆积物可以加工成例如刀片紧固以产生具有等于或优于基础金属合金的性能的部件。 本发明还提供了一种更持久的涡轮机系统，包括具有更耐磨损的锯齿形尖塔的转子。

公开(公告)号：US4873414A

公开(公告)日：1989-10-10

申请号：US206125

申请日：1988-06-13

Applicant: Kong Ma ,  John T. Pinder

Inventor： Kong Ma ,  John T. Pinder

IPC: B23K26/03 ,  B23K26/18 ,  B23K26/38

CPC classification number: B23K26/009 ,  B23K26/032 ,  B23K26/18 ,  B23K26/382 ,  B23K26/389 ,  B23K2201/001

Abstract: A method and apparatus for drilling holes through a component (16) from a first surface to a second surface. The method includes the step of applying a thixotropic water soluble medium to the second surface. The medium contains material to disperse the laser light and light emitting material (which could be fluorescent, phosphorescent or luminescent). Monitoring means and beam splitter are provided for monitoring light emitted, or reflected, by the component 16, along the length of the hole drilled by the laser and for monitoring light emitted by the medium. In this way one can detect when the laser breaks through the second surface and also produce an image indicative of the size and shape of the hole.

Abstract translation: 一种用于从第一表面到第二表面通过部件（16）钻孔的方法和装置。 该方法包括向第二表面施加触变性水溶性介质的步骤。 该介质包含分散激光和发光材料（可以是荧光，磷光或发光）的材料。 提供监测装置和分束器，用于监测由部件16沿由激光器钻出的孔的长度发射或反射的光并用于监测由介质发射的光。 以这种方式，可以检测何时激光穿过第二表面，并产生指示孔的尺寸和形状的图像。

公开(公告)号：US4817858A

公开(公告)日：1989-04-04

申请号：US192630

申请日：1988-05-11

Applicant: Clemens Verpoort

Inventor： Clemens Verpoort

IPC: B23K20/00 ,  B23K20/02 ,  B23K20/233 ,  B23K20/24 ,  C22C19/05 ,  C22F1/10 ,  B21K3/04

CPC classification number: C22C19/056 ,  B23K20/02 ,  B23K20/233 ,  B23K20/24 ,  C22F1/10 ,  B23K2201/001 ,  Y10T29/49336

Abstract: Method of manufacturing a workpiece of any given cross-sectional dimensions from an oxide-dispersion-hardened nickel-based superalloy available in the form of coarse-grained longitudinally directed columnar crystals by connecting previously very finely machined workpiece parts derived from a semi-finished product by diffusion-bonding using hot isostatic pressing, the workpiece parts being first heat-treated under a protective gas in the temperature range of 50.degree. to 100.degree. C. below the recrystallization temperature, under a pressure p.sub.k of not more than 5 MPa with the machined surfaces to be connected joined together, the workpiece then being heated at least to a critical temperature T.sub.K, above which no further cold working takes place, and the pressure then being gradually increased to the diffusion bonding pressure p.sub.max of 100 to 300 MPa with simultaneous increase in temperature are a heating rate of not more of 2.degree. C./min to the diffusion bonding temperature T.sub.D of 0 to 50.degree. C. below the recrystallization temperature, this condition being maintained for 1 to 24 hours. Safe variant: only raise the pressure when T.sub.D has been reached!Application: gas turbine blading of large dimensions.

Abstract translation: 通过将先前非常精细加工的半成品的工件部件连接起来，以粗粒度纵向柱状晶体的形式从由氧化物分散硬化的镍基超级合金制成任何给定横截面尺寸的工件的方法 通过使用热等静压进行扩散接合，首先在低于再结晶温度的50℃〜100℃的保护气体下，在压力pk不大于5MPa的条件下，首先对工件进行热处理， 要连接的加工表面连接在一起，然后将工件加热至少至临界温度TK，在此之上不再进行冷加工，然后将压力逐渐增加到100-300MPa的扩散粘合压力pmax，同时 温度升高对于0〜50℃的扩散接合温度TD为2℃/ min以上的加热速度 使再结晶温度下降，该条件保持1〜24小时。 安全型：仅在达到TD时提高压力！应用：大尺寸的燃气轮机叶片。