公开(公告)号：US5097110A

公开(公告)日：1992-03-17

申请号：US558238

申请日：1990-07-26

Applicant: Shoichi Hamada ,  Isao Shirasu ,  Tadashi Nagashima ,  Takashi Akaba ,  Shuhei Kuri ,  Takuya Kidera ,  Yasumi Nagura ,  Seiichi Kawaguchi ,  Takashi Ishide ,  Yoshio Hashimoto

Inventor： Shoichi Hamada ,  Isao Shirasu ,  Tadashi Nagashima ,  Takashi Akaba ,  Shuhei Kuri ,  Takuya Kidera ,  Yasumi Nagura ,  Seiichi Kawaguchi ,  Takashi Ishide ,  Yoshio Hashimoto

IPC: B23K26/06 ,  B23K26/10 ,  B23K26/14 ,  B23K26/28 ,  B23K37/02 ,  G02B5/08 ,  G02B5/28

CPC classification number: B23K37/0276 ,  B23K26/0643 ,  B23K26/106 ,  B23K26/142 ,  B23K26/1476 ,  B23K26/282 ,  G02B5/0808 ,  G02B5/0858 ,  G02B5/282 ,  B23K2201/06 ,  B23K2201/14

Abstract: The known reflecting mirror for a laser beam conisting of a mirror base member and a high-reflectivity metal coating layer formed on the mirror base member for reflecting a laser beam, is improved so as to maintain a high mirror reflectivity without necessitating a cooling facility. The improvements reside in that a coating layer having a small diffusion coefficient is provided on the back surface side of the high-reflectivity metal coating layer, and/or in that at least one layer of dielectric coating layer or layers are provided on the surface of the high reflectivity metal coating layer. Also, an improved laser beam welding apparatus for an inner circumferential surface of a tube is provided by employing the aforementioned improved reflection mirror as a reflecting mirror in an optical condensing system included in a laser beam welding apparatus for an inner circumferential surface of a tube, which apparatus comprises a flexible tube including an optical fiber extended therethrough for transmitting a welding laser beam, said flexible tube being insertable into a work tube, a position detector for detecting a relative position of the flexible tube with respect to the work tube and fixing means of internally expansible type for fixing the flexible tube within the work tube, respectively provided at the front end portion of the flexible tube, a rotary cylinder rotatably supported from the flexible tube, guide support means mounted to the rotary cylinder in a relatively rotatable manner and being able to be held in contact with the inner wall surface of the work tube for holding the rotary cylinder concentrically with the work tube, rotary drive means having its output shaft disposed coaxially with said rotary cylinder for rotationally driving the rotary cylinder, an optical condensing system disposed within said rotary cylinder for leading the welding laser beam emanating from the front end of the optical fiber to the inner wall surface of the work tube in a condensed state, gas scavenging means for discharging metal vapor produced upon welding of the work tube, and gas cooling means for cooling the optical condensing system.

公开(公告)号：US4891275A

公开(公告)日：1990-01-02

申请号：US879581

申请日：1986-06-27

Applicant: Richard Knoll

Inventor： Richard Knoll

IPC: B23K1/00 ,  B23K1/08 ,  B23K1/20 ,  B23K35/28 ,  C23C2/06 ,  F28F19/06

CPC classification number: F28F19/06 ,  B21C29/006 ,  B23K1/0012 ,  B23K1/08 ,  B23K1/20 ,  B23K35/282 ,  C23C2/06 ,  B23K2201/14 ,  B23K2203/10 ,  Y10T428/12736 ,  Y10T428/12792

Abstract: An aluminum or aluminum alloy shape for manufacture of heat exchangers is coated with a metallic layer of a zinc-base alloy constituting a fluxless soldering or low temperature brazing material when heated. A process for direct coating of formed aluminum shapes in nascent state includes the steps of providing a non-reactive atmosphere around the shape, providing a coating material of zinc-base alloy and bringing the aluminum shape and the coating material into contact and maintaining the contact at an elevated temperature for a predetermined period of time for forming a coherent coating on the aluminum shape.

Abstract translation: 用于制造热交换器的铝或铝合金形状在加热时涂覆有构成无助焊剂或低温钎焊材料的锌基合金的金属层。 在新生状态下直接涂覆形成的铝形状的方法包括以下步骤：在形状周围提供非反应性气氛，提供锌基合金的涂层材料，并使铝形状和涂层材料接触并保持接触 在高温下预定的时间用于在铝形上形成粘结涂层。

公开(公告)号：US4754913A

公开(公告)日：1988-07-05

申请号：US879584

申请日：1986-06-27

Applicant: Arvid B. Espedal ,  Richard Knoll

Inventor： Arvid B. Espedal ,  Richard Knoll

IPC: B23K1/06 ,  B23K1/19

CPC classification number: B23K1/19 ,  B23K1/06 ,  B23K2201/14

Abstract: Fluxless joining of aluminum members, one of which is provided wih a coating of zinc solder, includes preheating the assembled members to a temperature above the melting point of the solder coating and applying a multistep vibration to the assembled members at elevated temperature. A heat exchanging section has a core of spaced hollow aluminum shapes interconnected by thin aluminum fins extending through the zinc coating layer and having direct contact with the aluminum shapes.

Abstract translation: 铝构件的无焊接合，其中之一是镀锌焊料的涂层，包括将组装的构件预热到高于焊料涂层的熔点的温度，并在升高的温度下对组装的构件施加多步振动。 热交换部分具有间隔开的中空铝形状的芯，该铝芯形状通过薄铝合金翅片相互连接，薄铝片延伸穿过锌涂层并与铝形状直接接触。

公开(公告)号：US4736092A

公开(公告)日：1988-04-05

申请号：US720107

申请日：1985-04-04

Applicant: William E. Pirl ,  John M. Driggers ,  Donald R. Stoner

Inventor： William E. Pirl ,  John M. Driggers ,  Donald R. Stoner

IPC: B23K3/053 ,  C21D9/08 ,  F22B37/00 ,  H05B6/38 ,  H05B3/06

CPC classification number: F22B37/003 ,  B23K3/053 ,  C21D9/08 ,  H05B6/38 ,  B23K2201/14 ,  Y02P10/253

Abstract: An improved heater assembly and method for applying a brazing heat across a selected longitudinal section of a tube is disclosed herein. The heater assembly generally comprises a heater mandrel having an electrical resistance heating element coiled thereabout, and a support mandrel for supporting and centering this heating element. The heater mandrel further includes a means for directing a flow of inert gas in the space between the coiled heating element and the inner walls of the tube being brazed in order to purge this space of ambient atmospheric oxygen and prevent the heater mandrel from oxidizing. The support mandrel includes a centering means in the form of two roller assemblies, each of which has three spring-loaded rollers equidistantly spaced 120.degree. around its diameter. In the method of the invention, the heater mandrel is inserted into the tube and slid across the longitudinal section to be brazed. The heater then applies a brazing heat while a purging flow of inert gas is directed in the annular space between the coiled heating element and the inner walls of the tube. After the brazing operation has been completed, the flow of purge gas may be increased to cool down the heater assembly. The heater assembly is particularly useful for brazing reinforcing sleeves across sections of corrosion-damaged heat exchange tubes in nuclear steam generators.

Abstract translation: 本文公开了一种改进的加热器组件和用于在管的所选纵向部分上施加钎焊热的方法。 加热器组件通常包括具有在其周围盘绕的电阻加热元件的加热器心轴和用于支撑和对中该加热元件的支撑心轴。 加热器心轴还包括用于将惰性气体流引导到被卷绕的加热元件和被钎焊的管的内壁之间的空间中的装置，以便清除该环境大气氧的空间并防止加热器心轴氧化。 支撑心轴包括两个辊组件形式的定心装置，每个辊组件具有围绕其直径等距离间隔120°的三个弹簧加载辊。 在本发明的方法中，将加热器心轴插入管中并滑过要钎焊的纵向部分。 然后，加热器施加钎焊热，同时将惰性气体的吹扫流引导到卷绕的加热元件和管的内壁之间的环形空间中。 在钎焊操作完成之后，可以增加吹扫气体的流量以冷却加热器组件。 加热器组件特别适用于在核蒸汽发生器中的腐蚀损坏的热交换管的部分上钎焊加强套管。

公开(公告)号：US4619716A

公开(公告)日：1986-10-28

申请号：US659423

申请日：1984-10-10

Applicant: Kenichi Suzuki ,  Fusayoshi Miura

Inventor： Kenichi Suzuki ,  Fusayoshi Miura

IPC: B23K1/20 ,  B23K35/02 ,  B23K35/28 ,  B23K35/36 ,  C23C22/34 ,  B23K35/34

CPC classification number: C23C22/34 ,  B23K1/203 ,  B23K35/0233 ,  B23K35/0244 ,  B23K35/3605 ,  B23K2201/14 ,  B23K2203/10 ,  B23K35/286

Abstract: In a method of brazing aluminum material, the flux is formed on the surface of the aluminum material by a chemical conversion coating step. The aluminum material is brought into contact with a treating solution containing potassium and fluorine ions to cause a chemical reaction between aluminum components and potassium and fluorine ions, thereby forming K.sub.2 AlF.sub.5. The K.sub.2 AlF.sub.5 is present on the surface of the aluminum material as a uniform coating and acts as the flux during brazing. With the treating solution further containing zinc, the flux of K.sub.2 AlF.sub.5 and a pitting corrosion inhibiting layer of metallic zinc are simultaneously formed. The treating solution may further include powdered K.sub.2 AlF.sub.5 or AlF.sub.3 to increase the amount of flux and thus to intensify the action of the flux. The chemical conversion coating may be applied either to the material to be brazed or to the material for brazing.

Abstract translation: 在铝材钎焊的方法中，通过化学转化涂覆步骤在铝材料的表面上形成焊剂。 使铝材与含有钾离子和氟离子的处理溶液接触，引起铝成分与钾和氟离子之间的化学反应，从而形成K2AlF5。 K2AlF5作为均匀的涂层存在于铝材料的表面上，并且在钎焊期间用作焊剂。 通过处理液还含有锌，同时形成了K2AlF5的焊剂和金属锌的点腐蚀抑制层。 处理溶液还可以包括粉末化的K 2 AlF 5或AlF 3以增加通量，从而增强助焊剂的作用。 化学转化涂层可以施加到待钎焊的材料或用于钎焊的材料。

公开(公告)号：US4558735A

公开(公告)日：1985-12-17

申请号：US539360

申请日：1983-10-06

Applicant: Klaus Meike

Inventor： Klaus Meike

IPC: B23K11/00 ,  B23K11/20 ,  F28F1/10 ,  F28F3/02 ,  F28F21/08

CPC classification number: B23K11/20 ,  B23K11/0046 ,  F28F1/10 ,  F28F3/025 ,  B23K2201/14 ,  F28F2275/085 ,  Y10S165/329

Abstract: A heat baffle plate of aluminum or another good heat-conducting metal is secured on a steel member. Since aluminum cannot be welded to steel, connections are utilized which result in a good heat-conducting connection but without direct welding. For example, a steel plate can be placed over a portion of the heat baffle plate and then be welded through openings in the aluminum plate to the steel member. The baffle plate can alternatively be supported by a form-locking engagement with a holding plate of steel which is welded to the steel member. The better heat conductivity of the aluminum baffle plate causes the heat emission or heat absorption to be substantially increased for a given structural arrangement in comparison to a heat baffle plate of steel.

Abstract translation: 铝或其他良好导热金属的热障板固定在钢构件上。 由于铝不能焊接到钢上，所以连接被使用，导致良好的导热连接但不直接焊接。 例如，可以将钢板放置在热障板的一部分上，然后通过铝板中的开口焊接到钢构件。 挡板可替代地通过与焊接在钢构件上的钢板保持板的形状锁定接合来支撑。 与钢的热障板相比，铝挡板的更好的导热性导致给定的结构布置显着增加了散热或吸热。

公开(公告)号：US4423618A

公开(公告)日：1984-01-03

申请号：US302098

申请日：1981-09-14

Applicant: John P. Clarke

Inventor： John P. Clarke

IPC: B21D41/02 ,  B23K1/20

CPC classification number: B23K1/20 ,  B21D41/02 ,  B23K2201/14

Abstract: A method is described for manufacturing, shipping, and handling a process component of heat-exchanging, air-conditioning, and refrigerating circuits, such as a filter drier or an accumulator, so that the process component can be joined to fluid tubing of such circuits by field brazing, using phosphorus-bearing copper filler metal with little or no silver content to make the braze joints. The method finally comprises the steps of selecting the tubing used for the connectors with a diameter which is smaller than the diameter needed for the field brazing to the circuit tubing and then mechanically expanding the other end of the tubing from 2% to 20% to this field brazing diameter, whereby the tubing is work-hardened to a hardness of 45-50 F Scale Rockwell and is able to withstand damage from shipping and handling operations and thereby returns the critical tolerances needed by the field brazing. However, mechanical expansion is restricted to a maximum of 6% if it is desired to avoid an orange peel surface on the connector. Mechanical expansion is done by punching in one to four steps, each punch increasing the diameter of the tubing by 0.005 to 0.010 inch.

Abstract translation: 描述了一种用于制造，运输和处理热交换，空调和制冷回路（例如过滤干燥器或蓄能器）的工艺部件的方法，使得工艺部件可以连接到这种电路的流体管 通过现场钎焊，使用含有少量或不含银含量的含磷铜填料来制作钎焊接头。 该方法最终包括以下步骤：选择用于连接器的管道，其直径小于现场钎焊到回路管道所需的直径，然后将管道的另一端从2％机械膨胀到20％ 现场钎焊直径，由此管材加工硬化到45-50 F Scale Rockwell的硬度，并且能够承受运输和处理操作的损坏，从而返回现场钎焊所需的关键公差。 然而，如果希望避免连接器上的橙皮表面，则机械膨胀限制在最大6％。 机械膨胀通过冲压一到四个步骤完成，每个冲头将管的直径增加0.005到0.010英寸。

公开(公告)号：US4192052A

公开(公告)日：1980-03-11

申请号：US817948

申请日：1977-07-22

Applicant: Robert D. MacDonald

Inventor： Robert D. MacDonald

IPC: B21C37/24 ,  B23K1/20 ,  F28F1/24 ,  B23P15/26

CPC classification number: F28F1/24 ,  B21C37/24 ,  B23K1/20 ,  B23K2201/14 ,  B23K2203/10 ,  Y10T29/49378

Abstract: The fins of a heat exchanger are brazed to the exterior of the fluid-carrying tube by means of a lower melting point cladding on the tube which forms a secure bond between the tube surface and the unconfigured portion of the perimeter of the tube-receiving holes in the fins. The fins have a limited number of narrow tabs doubled back from the edge of each hole to function as longitudinal spacers between adjacent fins.

Abstract translation: 热交换器的翅片通过管上的较低熔点包层钎焊到流体承载管的外部，其在管表面和管接收孔的周边的未构造部分之间形成牢固的结合 在鳍。 翅片具有从每个孔的边缘加倍的有限数量的窄突出部，用作相邻翅片之间的纵向间隔件。

公开(公告)号：US3993236A

公开(公告)日：1976-11-23

申请号：US611202

申请日：1975-09-08

Applicant: John N. Antonevich

Inventor： John N. Antonevich

IPC: B23K1/00 ,  B23K1/08 ,  B23K3/06 ,  B23K1/06

CPC classification number: B23K3/0684 ,  B23K1/0012 ,  B23K1/08 ,  B23K3/0661 ,  B23K3/0669 ,  B23K2201/14

Abstract: A method and apparatus for fluxless soldering, particularly of capillary joints, is provided wherein the part to be soldered is immersed in a bath of molten solder, the solder is caused to cavitate and simultaneously the part is subject to vibratory or impact energy.

Abstract translation: 提供了一种用于无焊剂焊接，特别是毛细管接头的方法和装置，其中要焊接的部件浸入熔融焊料浴中，使焊料气蚀，同时该部件受到振动或冲击能量。

公开(公告)号：US3932728A

公开(公告)日：1976-01-13

申请号：US503404

申请日：1974-09-05

Applicant: Ian Stuart Maxwell

Inventor： Ian Stuart Maxwell

IPC: B23K9/067 ,  B23K9/10

CPC classification number: B23K9/0673 ,  B23K2201/06 ,  B23K2201/14

Abstract: A TIG welding arrangement utilizing a high frequency arc starting arrangement with a fuse protected secondary arc gap operable to protect the welding apparatus.