公开(公告)号：US5070607A

公开(公告)日：1991-12-10

申请号：US657377

申请日：1991-02-19

Applicant: James E. Boardman ,  John O. Fowler

Inventor： James E. Boardman ,  John O. Fowler

IPC: B21D53/04 ,  B23K20/18 ,  F28D9/00

CPC classification number: F28D9/0031 ,  B21D53/045 ,  B23K20/18 ,  B23K2201/14 ,  Y10T29/18 ,  Y10T29/49371

Abstract: It is common practice to assemble heat exchangers from a multitude of pre-formed and sometimes extremely delicate pieces. The pieces have to be held in jigs along with appropriately placed braze material and then heated to achieve brazing. The invention takes advantage of the ability which some materials have to considerably extend their areas without rupturing by using such materials in that they are assembled in the flat condition and then diffusion bonded, followed by inflation of the parts of the assembly which are to provide the fluid passageways, inlet manifolds, and headers. The construction of heat exchangers is thus considerably simplified.

Abstract translation: 通常的做法是从大量预先形成的和有时非常细腻的部件组装热交换器。 必须将夹具与适当放置的钎焊材料一起夹在夹具中，然后加热以实现钎焊。 本发明利用了一些材料必须通过使用这些材料而大大延长其面积而不破裂的能力，因为它们被组装在平坦状态然后扩散粘合，随后组装部件被充气以提供 流体通道，入口歧管和集管。 因此，热交换器的结构大大简化。

公开(公告)号：US4911351A

公开(公告)日：1990-03-27

申请号：US357673

申请日：1989-05-30

Applicant: Kazunori Ishikawa ,  Shigenori Asami

Inventor： Kazunori Ishikawa ,  Shigenori Asami

IPC: B23K1/00 ,  B23K1/19 ,  B23K1/20 ,  B23K35/28 ,  B23K35/38 ,  C23C10/08

CPC classification number: B23K1/0012 ,  B23K1/19 ,  B23K1/20 ,  B23K35/282 ,  B23K35/38 ,  C23C10/08 ,  B23K2201/14

Abstract: A method of manufacturing heat-exchanger excellent in the pitting corrosion resistance is disclosed, wherein, in the manufacture of aluminum heat-exchanger to be brazed under heat in the furnace of inert gas atmosphere using fluoride flux, Zn is disposed at a position of 430.degree. to 620.degree. C. in the furnace to melt and vaporize it and the vapor of Zn is allowed to contact with the fin material and the tube material coated with said flux simultaneously with the brazing under heat of these aluminum components, or the fin material coated with said flux and dried and the tube material without flux are assembled and retained for not less than 1 minute in the vapor of Zn of a temperature lower than the melting point of said flux and higher than the temperature, at which these components are heated, in the inert gas and thereafter brazing is performed at a temperature higher than the melting point of said flux.

公开(公告)号：US4705206A

公开(公告)日：1987-11-10

申请号：US810295

申请日：1985-12-18

Applicant: Hiroshi Kamiya ,  Takeshi Iguchi ,  Shigenobu Fukumi

Inventor： Hiroshi Kamiya ,  Takeshi Iguchi ,  Shigenobu Fukumi

IPC: B23K1/19 ,  B23K1/20 ,  B23K35/00 ,  B23K103/10 ,  B23K31/02

CPC classification number: B23K35/002 ,  B23K1/20 ,  B23K2201/14 ,  B23K2203/10 ,  B23K2203/16

Abstract: An aluminum alloy including magnesium can be joined by brazing even when flux made of potassium fluoaluminates is employed. The aluminum alloy including magnesium is heated in a vacuum, so that magnesium in the aluminum alloy evaporates from the surface of the aluminum alloy. The weight ratio of magnesium at the surface of the aluminum alloy can be reduced to less than 0.5 as a result of the heating step. The aluminum alloy treated by this operation is, thereafter covered with brazing material and clad with flux. After that, the aluminum alloy is heated in a furnace in order to melt the brazing material.

Abstract translation: 包括镁的铝合金即使使用由氟化铝钾制成的焊剂也可以通过钎焊接合。 包括镁的铝合金在真空中加热，铝合金中的镁从铝合金的表面蒸发。 由于加热步骤，铝合金表面的镁的重量比可以降低到小于0.5。 通过该操作处理的铝合金，然后用钎焊材料覆盖并用助熔剂包覆。 之后，在炉中加热铝合金，以熔化钎料。

公开(公告)号：US4700053A

公开(公告)日：1987-10-13

申请号：US938369

申请日：1986-12-04

Applicant: John M. Driggers ,  William E. Pirl

Inventor： John M. Driggers ,  William E. Pirl

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

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

Abstract: Both an apparatus and a process for accurately applying a correct amount of brazing heat to a conduit are disclosed herein. The apparatus generally comprises a mandrel including an electrical resistance wire heating element and a heat sensor for sensing the temperature of the inside walls of the conduit which were heated. The mandrel is preferably formed from a refractory material, and the heat sensor is located beneath the surface of the mandrel in order to insulate it from heat radiated from the electrical resistance wire wound about the mandrel body. The mandrel further includes an opening in the portion of the mandrel which surrounds the heat sensor in order that the sensor may be selectively exposed to a section of conduit to which heat was applied by sliding the mandrel to a position which aligns the opening with the wall of the heated conduit. The temperature of the conduit may then be determined as a function of the radiant heat received by the heat sensor. The invention is particularly useful in producing high quality braze joints between reinforcing sleeves inserted within damaged heat exchange tubes of a nuclear steam generator since the heat sensor allows the operator to determine whether or not a proper amount of brazing heat was applied to the sleeve/tube configuration.

Abstract translation: 本文公开了用于将准确地施加正确量的钎焊热量的设备和方法。 该设备通常包括一个心轴，它包括一个电阻线加热元件和一个热传感器，用于感测被加热的导管内壁的温度。 心轴优选由耐火材料形成，并且热传感器位于心轴表面下方，以使其与缠绕在心轴本体上的电阻丝辐射的热绝缘。 心轴还包括在心轴的围绕热传感器的部分中的开口，以便传感器可以选择性地暴露于通过将心轴滑动到将开口与壁对准的位置而施加热量的导管部分 的加热导管。 然后可以将导管的温度确定为由热传感器接收的辐射热的函数。 本发明特别可用于在插入核蒸汽发生器的损坏的热交换管内的加强套管之间生产高品质的钎焊接头，因为热传感器允许操作者确定是否适当量的钎焊热施加到套筒/管 组态。

公开(公告)号：US4615952A

公开(公告)日：1986-10-07

申请号：US570845

申请日：1984-01-16

Applicant: Richard Knoll

Inventor： Richard Knoll

IPC: B23K1/00 ,  B23K1/08 ,  B23K1/20 ,  B23K35/28 ,  C23C2/06 ,  F28F19/06 ,  F28F21/08 ,  C23C2/00

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, 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，其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：US4501387A

公开(公告)日：1985-02-26

申请号：US417089

申请日：1982-09-13

Applicant: Francis L. E. Hoyer

Inventor： Francis L. E. Hoyer

IPC: B23K1/008 ,  B23K31/02

CPC classification number: B23K1/008 ,  B23K2201/14

Abstract: A method of brazing heat exchanger cores in a cell inside which two heat exchangers are subjected to a gas flux flowing first through one heat exchanger in a first direction, then to a gas flux flowing through other heat exchanger in an opposite direction.

Abstract translation: 在两个热交换器中首先通过一个热交换器沿第一方向流过的气体流经第一方向流过气体通道的气室内的热交换器芯的钎焊方法，然后流向沿相反方向流过另一个热交换器的气体流路。

公开(公告)号：US4339066A

公开(公告)日：1982-07-13

申请号：US137709

申请日：1980-04-07

Applicant: Gerald N. Matthews ,  Frank H. Sanders

Inventor： Gerald N. Matthews ,  Frank H. Sanders

IPC: B23K3/06 ,  B23K1/06 ,  B23K1/08

CPC classification number: B23K3/0669 ,  B23K2201/14

Abstract: Apparatus and method of venting a plate fin coil during the ultrasonic soldering of aluminum return bend tubes to the heat exchange tubes in the coil. The apparatus includes a snorkel member arranged on the heat exchanger carrying mechanism whereby one end of the snorkel is telescoped in the open end of a heat exchange tube forming an end of a circuit in the coil, with the other end communicating with the atmosphere, whereby pressure in the interior of the circuit is relieved when the coil is immersed in the solder bath.

Abstract translation: 在将铝返回弯管的超声波焊接到线圈中的热交换管的过程中，将板翅片线圈排气的装置和方法。 该装置包括布置在热交换器承载机构上的通气管构件，从而使排气管的一端在形成线圈中的回路端部的热交换管的开口端中伸缩，另一端与大气连通，由此 当线圈浸入焊锡槽中时，电路内部的压力得以缓解。

公开(公告)号：US4240574A

公开(公告)日：1980-12-23

申请号：US885911

申请日：1978-03-13

Applicant: Duane J. Schmatz ,  Walter L. Winterbottom

Inventor： Duane J. Schmatz ,  Walter L. Winterbottom

IPC: B23K1/008 ,  B23K35/28 ,  B23K1/19

CPC classification number: B23K35/286 ,  B23K1/008 ,  B23K2201/14

Abstract: A method of brazing aluminum parts in an inert gas atmosphere is disclosed. The brazed filler metal is controlled to contain a ternary alloy of aluminum-silicon-magnesium and the base aluminum parts are controlled to contain a binary alloy of aluminum-magnesium. Magnesium in the base metal is controlled to 0.4-1.2% and in the filler metal it is controlled to 0.2-0.6%; in the filler metal only, silicon is controlled to 7-12%. The assembled base metal parts and filler metal are subjected to differential heating rates, one rate being limited to at least 50.degree. C./minute when the metal parts reach temperatures in the range of 400.degree.-550.degree. C., and a conventional rate when outside said temperature zone. As a result, three physical parameters are caused to occur simultaneously: initiation of porosity in oxide film on the metal parts, transport of magnesium to the oxide interface and reaction with the oxide, and initial melting of the filler metal as well as wettings of the oxide by the filler metal.

Abstract translation: 公开了一种在惰性气体气氛中钎焊铝部件的方法。 钎焊的填充金属被控制为含有铝 - 硅 - 镁的三元合金，并且将铝基部分控制为含有铝 - 镁的二元合金。 贱金属中的镁控制在0.4-1.2％，在填料金属中控制在0.2-0.6％; 仅在填充金属中，硅被控制在7-12％。 组装的基体金属部件和填充金属受到不同的加热速率，当金属部件达到400-550℃的温度时，一个速率被限制在至少50℃/分钟，并且常规速率 当外面的温度区域。 结果，导致三个物理参数同时发生：在金属部件上的氧化膜中引发孔隙率，将镁输送到氧化物界面并与氧化物反应，以及填充金属的初始熔化以及润湿 通过填充金属氧化。

公开(公告)号：US4214925A

公开(公告)日：1980-07-29

申请号：US952160

申请日：1978-10-17

Applicant: Koji Arita ,  Masahiro Chiji ,  Takayoshi Asami ,  Yasuhumi Karaki ,  Toshihiko Endo

Inventor： Koji Arita ,  Masahiro Chiji ,  Takayoshi Asami ,  Yasuhumi Karaki ,  Toshihiko Endo

IPC: B21C37/22 ,  B23K1/00 ,  B23K1/19 ,  B23K31/02 ,  B23P15/26 ,  C22F1/04 ,  C22F1/05 ,  F28F1/30 ,  F28F3/02 ,  F28F3/08 ,  B27C1/00

CPC classification number: B23K1/0014 ,  B23K1/19 ,  B23P15/26 ,  C22F1/04 ,  C22F1/05 ,  F28F3/025 ,  B23K2201/14 ,  Y10T29/49378 ,  Y10T29/49393

Abstract: In a method for fabricating a brazed aluminum fin heat exchanger comprising a pair of brazing sheets each consisting of a core sheet and a cladding of brazing material disposed on either side of said core sheet and a corrugated fin interposed between the brazing sheets and brazed thereto, an improved process comprises making at least the fin of a heat-treatable (age-hardenable) aluminum alloy in the Al-Mg-Si system containing 0.15 to 0.4% copper, assembling the fin with said brazing sheets into a brazed aluminum fin heat exchanger unit, maintaining the heat exchanger unit at a temperature between 500.degree. C. and 570.degree. C. for a time from 30 minutes to 4 hours, quenching the solution-treated unit to room temperature under cooling conditions which provide a cooling rate between 2.8.degree. C./min. and 50.degree. C./min. down to 200.degree. C. and thereafter, age-hardening the quenched heat exchanger unit. The above heat-treatable aluminum alloy in the Al-Mg-Si system is AA 6951 or AA 6061.

Abstract translation: 在一种钎焊铝翅片热交换器的制造方法中，包括一对钎焊片，每一个钎焊片由芯片和布置在所述芯片的两侧的钎焊材料的包层和插入在钎焊片之间的波纹状散热片组成， 改进的方法包括在含有0.15-0.4％铜的Al-Mg-Si体系中至少制备可热处理（老化 - 硬化）铝合金的翅片，将所述钎焊片与所述钎焊片组装成钎焊铝翅片热交换器 单元，将热交换器单元维持在500℃至570℃的温度下30分钟至4小时，在冷却条件下将溶液处理单元淬火至室温，冷却速率为2.8℃ C./min。 和50℃/分钟。 低于200℃，此后对淬火的热交换器单元进行时效硬化。 Al-Mg-Si体系中的上述可热处理的铝合金是AA 6951或AA 6061。

公开(公告)号：US4186474A

公开(公告)日：1980-02-05

申请号：US693587

申请日：1976-06-07

Applicant: Louis P. Hine

Inventor： Louis P. Hine

IPC: B21D53/08 ,  B23K1/06 ,  B23K1/08 ,  F28F9/26

CPC classification number: B21D53/085 ,  B23K1/06 ,  B23K1/08 ,  B23K2201/14 ,  F28F21/084 ,  F28F21/085 ,  F28F2275/04 ,  F28F9/268 ,  Y10T29/4938

Abstract: The copper inlet and outlet tube arrangements for an essentially all aluminum coil comprised of aluminum fins, hairpin tubes, and return bends, are ultrasonically soldered to open ends of the hairpin tubes at the same time as the return bends are soldered to the hairpin tubes in an ultrasonic soldering bath; with any bonds of the copper inlet and outlet tube arrangements, such as connections to an expansion device and a connection to a suction header being located at an elevation above the solder bath to preclude contamination of the bath from the bonds.

Abstract translation: 用于由铝翅片，发夹管和返回弯头组成的基本上所有铝线圈的铜入口和出口管布置在回弯弯管焊接到发夹管的同时被超声波焊接到发夹管的开口端 超声波焊接浴; 具有铜入口和出口管布置的任何连接，例如到膨胀装置的连接以及与抽吸集管的连接位于焊料槽上方的高度处，以防止熔池从粘结中被污染。