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71. 发明授权

US5244144A Method for brazing aluminum materials 失效
标题翻译：铝材钎焊方法
公开(公告)号：US5244144A
公开(公告)日：1993-09-14
申请号：US974680
申请日：1992-11-12
申请人： Yasuhiro Osame , Satoko Arai , Shoichi Sato , Shuichi Murooka
发明人： Yasuhiro Osame , Satoko Arai , Shoichi Sato , Shuichi Murooka
IPC分类号： B23K1/008 , B23K1/19 , B23K35/38
CPC分类号： B23K1/008 , B23K1/19 , B23K35/38 , Y10S148/017
摘要： A method is provided to braze aluminum materials to each other, the method comprising a step of producing a fluoride gas-containing atmosphere within a brazing oven. The method further comprises a step of brazing the aluminum materials, by heating said materials within said atmosphere melts. The fluoride gas-containing atmosphere is produced in the soldering oven: by introducing an inert gas and the fluoride gas through different passages; by introducing into the oven a mixture of the inert gas and the fluoride gas; or by heating a fluoride in a receptacle which is placed in the oven so as to gasify the fluoride within the oven.
摘要翻译：提供了将铝材料彼此钎焊的方法，该方法包括在钎焊炉内生产含氟化物气体的气氛的步骤。该方法还包括通过加热所述气氛中的所述材料来钎焊铝材料的步骤。含氟气体的气氛在焊炉中产生：通过不同的通道引入惰性气体和氟化物气体; 通过向炉中引入惰性气体和氟化物气体的混合物; 或者通过加热放置在烘箱中的容器中的氟化物以使炉内的氟化物气化。

72. 发明授权

US5210388A Inert gas for TIG, MIG, MAG and plasma welding 失效
标题翻译：用于TIG，MIG，MAG和等离子体焊接的气体
公开(公告)号：US5210388A
公开(公告)日：1993-05-11
申请号：US844210
申请日：1992-03-02
申请人： Alfward Farwer
发明人： Alfward Farwer
IPC分类号： B23K35/38
CPC分类号： B23K35/383
摘要： Argon having a high degree of purity or else a mixture having a high degree of purity consisting of argon, helium, hydrogen, oxygen and/or carbon dioxide are used as the inert gas for TIG, MIG, MAG and plasma welding. For purposes of improving the welding result, 80 ppm to 250 ppm, preferably 120 ppm to 180 ppm of nitrogen are added to the inert gas.
摘要翻译：作为用于TIG，MIG，MAG和等离子体焊接的惰性气体，使用具有高纯度的氩或具有由氩，氦，氢，氧和/或二氧化碳组成的高纯度的混合物的氩。为了改善焊接结果，向惰性气体中加入80ppm至250ppm，优选120ppm至180ppm的氮气。

73. 发明授权

US5145103A Partial elimination of copper plate from steel strip by mechanical means 失效
标题翻译：通过机械方式从钢带部分去除铜板
公开(公告)号：US5145103A
公开(公告)日：1992-09-08
申请号：US599217
申请日：1990-10-17
申请人： Arnold T. Johnson
发明人： Arnold T. Johnson
IPC分类号： B23K1/00 , B21C37/06 , B23K1/19 , B23K31/02 , B23K35/38 , B23K101/06 , B23K103/02 , F16L9/18 , F16L58/02 , F16L58/08
CPC分类号： B23K1/19 , B21C37/06 , B23K35/38 , F16L58/02 , F16L58/08
摘要： A process for producing non-corrosive double-wall tubing in which an unbrazed, unsealed continuous double-wall tube of a given circumference is formed from a metal sheet composed of a first non-ferritic metal having a first defined region of exposed non-ferritic metal and a second region of a second metal in overlying relationship thereto, said exposed region having a width essentially equal to the circumference of the finished tube. The process including the steps of elevating the surface of the stainless steel to a brazing temperature while maintaining the material in a humidified gaseous atmosphere consisting essentially of a non-reactive carrier gas and reactive gas present in sufficient concentrations to achieve fluxing; maintaining the surface temperature of the steel for an interval sufficient to permit fusion between the selected metal and the non-ferritic steel surface; after metal fusion has been achieved, allowing the resulting fused metal material to cool to a first lowered temperature in a controlled non-oxidative atmosphere at a rate which retards the formation of fine-grained steel crystals in the metal; and after reaching a metallurgical transformation point, rapidly cooling the fused metal in a controlled atmosphere to a temperature below which the brazing metal is not reactive with oxygen. This process can be employed successfully in manufacturing unique, double-wall tubing which is relatively flexible and highly corrosion resistant.
摘要翻译：一种用于生产非腐蚀性双壁管的方法，其中给定周长的未开封的非密封连续双壁管由金属板形成，所述金属板由具有暴露的非铁素体的第一限定区域的第一非铁素体金属金属和第二金属的第二区域，其中所述暴露区域的宽度基本上等于成品管的周长。该方法包括以下步骤：将不锈钢的表面升高至钎焊温度，同时将材料保持在基本上由非反应性载气和以足够浓度存在的反应气体组成的加湿气氛中，以实现熔化; 保持钢的表面温度足以允许所选择的金属和非铁素体钢表面之间熔化的间隔; 在金属熔化已经实现之后，使所得到的熔融金属材料以受阻的非氧化性气氛中的第一降低温度冷却至一定程度，其速度阻碍了金属中细晶粒结晶的形成; 在达到冶金转化点之后，将熔融金属在受控气氛中快速冷却至低于该温度的钎焊金属不与氧反应的温度。该方法可以成功地用于制造相对柔性和高耐腐蚀性的独特的双壁管。

74. 发明授权

US5017752A Plasma arc torch starting process having separated generated flows of non-oxidizing and oxidizing gas 失效
标题翻译：等离子体电弧割炬启动过程具有分离的非氧化和氧化气体的产生流
公开(公告)号：US5017752A
公开(公告)日：1991-05-21
申请号：US487747
申请日：1990-03-02
申请人： Wayne S. Severance, Jr. , Tommie Z. Turner
发明人： Wayne S. Severance, Jr. , Tommie Z. Turner
IPC分类号： B23K10/00 , B23K35/38 , H05H1/34
CPC分类号： B23K35/38 , H05H1/3405 , H05H2001/3421 , H05H2001/3426 , H05H2001/3436 , H05H2001/3442 , H05H2001/3452 , H05H2001/3468
摘要： A process for starting a plasma arc torch is disclosed which minimizes the oxidation of the electrode to thereby extend the life of the electrode. A flow of non-oxidizing gas is first generated between the discharge end of the torch electrode and the nozzle assembly of the torch. A pilot arc then is created between the discharge end of the electrode and the nozzle assembly. The pilot arc is transferred and the flow of non-oxidizing gas is terminated. A flow of oxidizing gas then is generated for plasma formation.

75. 发明授权

US4973822A Gas metal arc welding and shielding gas therefor 失效
标题翻译：气体金属电弧焊及其保护气体
公开(公告)号：US4973822A
公开(公告)日：1990-11-27
申请号：US480112
申请日：1990-02-14
申请人： James R. Evans , Earl D. Colvin
发明人： James R. Evans , Earl D. Colvin
IPC分类号： B23K9/16 , B23K9/173 , B23K35/38
CPC分类号： B23K9/173 , B23K35/383
摘要： A welding method and shielding gas therefor which enables the use of gas metal arc welding to produce smooth welds with little or no surface oxidation and without encountering arc instability during the metal deposition.

76. 发明授权

US4925992A Perfluorinated 2-ISO propyl derivative compounds 失效
标题翻译：全氟化2-ISO丙基衍生物化合物
公开(公告)号：US4925992A
公开(公告)日：1990-05-15
申请号：US313129
申请日：1989-02-21
申请人： Frank K. Schweighardt , Webb I. Bailey , John T. Lileck , John K. Graybill , Eugene G. Lutz
发明人： Frank K. Schweighardt , Webb I. Bailey , John T. Lileck , John K. Graybill , Eugene G. Lutz
IPC分类号： B23K35/38 , C07C22/00 , C07C23/36
CPC分类号： B23K35/386 , C07C22/00 , C07C23/36
摘要： A novel composition of the formula: ##STR1## wherein the carbon rings are fully fluorinated.
摘要翻译：一种下式的新型组合物：其中碳环是完全氟化的。

77. 发明授权

US4911351A Method of manufacturing heat-exchanger 失效
标题翻译：制造热交换器的方法
公开(公告)号：US4911351A
公开(公告)日：1990-03-27
申请号：US357673
申请日：1989-05-30
申请人： Kazunori Ishikawa , Shigenori Asami
发明人： Kazunori Ishikawa , Shigenori Asami
IPC分类号： B23K1/00 , B23K1/19 , B23K1/20 , B23K35/28 , B23K35/38 , C23C10/08
CPC分类号： B23K1/0012 , B23K1/19 , B23K1/20 , B23K35/282 , B23K35/38 , C23C10/08 , B23K2201/14
摘要： 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.

78. 发明授权

US4895990A Fluorinated polycyclic compounds 失效
标题翻译：氟化多环化合物
公开(公告)号：US4895990A
公开(公告)日：1990-01-23
申请号：US66709
申请日：1987-06-24
申请人： Colin R. Sargent , David E. Wotton
发明人： Colin R. Sargent , David E. Wotton
IPC分类号： B23K35/36 , B23K35/363 , B23K35/38 , C07C17/00 , C07C17/02 , C07C23/18 , C07C23/20 , C07C23/38 , C07C23/40 , C07C67/00 , C09K5/00
CPC分类号： C07C23/18 , B23K35/386 , C07C23/38 , C07C23/40
摘要： A fully-fluorinated and fully saturated fluorocarbon, containing at least two condensed or non-condensed six-membered rings, seventeen carbon atoms and from 28 to 32 (inclusive) fluorine atoms in its molecule, and having a boiling point from 250.degree. to 265.degree. C.; provided that where the rings are non-condensed they are separated by not more than 4 carbon atoms. Such multi-ring C.sub.17 saturated-perfluorocarbons are produced by the saturation fluorination of the corresponding multi-ring hydrocarbons and are suitable for use as high-temperature vapour-soldering fluids, especially for use with solders melting above 200.degree. C.

79. 发明授权

US4871109A Vapor phase soldering using certain perfluorinated polyethers 失效
标题翻译：使用某些全氟化聚醚进行气相焊接
公开(公告)号：US4871109A
公开(公告)日：1989-10-03
申请号：US149773
申请日：1988-01-29
申请人： Dennis J. Kalota , John S. McConaghy, Jr. , David O. Fisher , Ronald E. Zielinski
发明人： Dennis J. Kalota , John S. McConaghy, Jr. , David O. Fisher , Ronald E. Zielinski
IPC分类号： B23K1/015 , B23K35/38 , C07C43/12 , F24V30/00 , H05K3/34
CPC分类号： B23K35/386 , B23K1/015
摘要： A perfluorinated polyether having the formulaR.sub.f O--(CF.sub.2 CF.sub.2 O).sub.n --R'.sub.fwherein n=3-11 and R.sub.f and R.sub.f ' are perfluorinated C.sub.1 -C.sub.5 alkyl radicals is used in vapor phase soldering applications. Especially useful for such applications is perfluoroheptaglyme.

80. 发明授权

US4851636A Method and apparatus for generating an ultra low current plasma arc 失效
标题翻译：用于产生超低电流等离子弧的方法和装置
公开(公告)号：US4851636A
公开(公告)日：1989-07-25
申请号：US95427
申请日：1987-09-11
申请人： Hisashi Sugimoto , Goro Watanabe
发明人： Hisashi Sugimoto , Goro Watanabe
IPC分类号： B23K10/02 , B23K9/067 , B23K10/00 , B23K35/38 , H05H1/34 , H05H1/36
CPC分类号： B23K9/0672 , B23K10/00 , B23K35/383 , H05H1/34 , H05H1/341 , H05H1/36 , H05H2001/3421 , H05H2001/3478
摘要： A method and apparatus for generating a plasma arc used in arc welding, arc transformation hardening, minute working, etc. A plasma gas used for generating a plasma arc includes xenon. A tungsten electrode having a diameter of 0.5 millimeters or less is used. Thus, an extremely low plasma arc current of 0.1 amperes or less can be produced in a stabilized manner.
摘要翻译：用于产生用于电弧焊，电弧转换硬化，微小加工等的等离子体电弧的方法和装置。用于产生等离子弧的等离子体气体包括氙气。使用直径为0.5毫米以下的钨电极。因此，可以以稳定的方式产生0.1安培或更小的极低等离子体电弧电流。

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