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公开(公告)号：US20130032250A1
公开(公告)日：2013-02-07
申请号：US13641943
申请日：2011-03-24
申请人： Toyoyuki Sato , Yasuyuki Yamamoto , Takashi Kato , Masayuki Nagahori , Hirotaka Kamikihara , Takashi Takeda
发明人： Toyoyuki Sato , Yasuyuki Yamamoto , Takashi Kato , Masayuki Nagahori , Hirotaka Kamikihara , Takashi Takeda
CPC分类号： F23D14/42 , B23K7/00 , B23K35/228 , B23K35/38 , F23D14/22 , F23D14/32 , F23D14/54 , F23K2900/05004
摘要： A gas cutting method is provided which includes: mixing hydrogen gas and hydrocarbon gas to acquire fuel gas; ejecting a preheating flame, which is formed by mixing and igniting the fuel gas and preheating oxygen gas, from an end of a cutting tip to heat a workpiece; and ejecting cutting hydrogen gas to the heated workpiece to cut the workpiece. Here, the content of the hydrocarbon gas in the fuel gas is more than 0 vol % and equal to or less than 4 vol %.
摘要翻译： 提供了一种气体切割方法，包括：混合氢气和烃气以获得燃料气体; 喷射通过从切割尖端的端部混合并点燃燃料气体和预热氧气形成的预热火焰以加热工件; 并将切割氢气喷射到加热的工件上以切割工件。 这里，燃料气体中的烃气体的含量大于0体积％且为4体积％以下。
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公开(公告)号：US08574379B2
公开(公告)日：2013-11-05
申请号：US13060843
申请日：2009-08-19
申请人： Masayuki Nagahori , Hirotaka Kamikihara , Takashi Takeda , Toyoyuki Sato , Yasuyuki Yamamoto , Takashi Kato
发明人： Masayuki Nagahori , Hirotaka Kamikihara , Takashi Takeda , Toyoyuki Sato , Yasuyuki Yamamoto , Takashi Kato
IPC分类号： B23K7/00
CPC分类号： F23D14/42 , B23K7/008 , F23C2900/9901 , F23D14/32 , F23K5/007 , F23K2401/201 , F23K2900/05004 , F23N3/005 , F23N2037/08 , F23N2041/11
摘要： The object of the present invention is to provide a method for cutting with gas which uses a cutting tip including a preheating hole for forming a preheating flame with a fuel gas and an oxygen gas for preheating, and an oxygen gas hole for cutting a workpiece by injecting oxygen gas for cutting, and which can decrease an amount of hydrogen gas used by supply a fuel gas to the preheating hole, which is appropriate in both heating and cutting the workpiece, and an apparatus for cutting with gas, and the present invention provides an apparatus for cutting with gas (30) which supplies an oxygen gas, and a fuel gas to a cutting tip (20) including a preheating hole (23) and an oxygen gas hole for cutting (22), wherein the apparatus (30) includes a supply circuit for oxygen gas (50), a supply circuit for hydrogen gas (41), a supply circuit for hydrocarbon-based gas (45), and a gas supply control means (60), and the gas supply control means (60) can alter a ratio of the hydrogen gas and the hydrocarbon-based gas which are supplied to the preheating hole in a case of heating the workpiece and a case of cutting the workpiece.
摘要翻译： 本发明的目的是提供一种使用包括用于形成预热火焰的预热孔的切割尖端的燃料气体和氧气用于预热的气体切割方法，以及用于切割工件的氧气孔 注入用于切割的氧气，并且通过在加热和切割工件时适合于预热孔中的燃料气体供给所使用的氢气量以及用气体切割的设备，本发明提供 一种用于向供给氧气的气体（30）进行切割的装置和向包括预热孔（23）和用于切割的氧气孔（22）的切割尖端（20）进行切割的燃料气体，其中，所述装置（30） 包括氧气供给回路（50），氢气供给回路（41），烃类气体供给回路（45）以及气体供给控制单元（60），气体供给控制单元 60）可以改变氢气和h的比例 在加热工件的情况下供给预热孔的基于碳基的气体和切割工件的情况。
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公开(公告)号：US20110146846A1
公开(公告)日：2011-06-23
申请号：US13060843
申请日：2009-08-19
申请人： Masayuki Nagahori , Hirotaka Kamikihara , Takashi Takeda , Toyoyuki Sato , Yasuyuki Yamamoto , Takashi Kato
发明人： Masayuki Nagahori , Hirotaka Kamikihara , Takashi Takeda , Toyoyuki Sato , Yasuyuki Yamamoto , Takashi Kato
CPC分类号： F23D14/42 , B23K7/008 , F23C2900/9901 , F23D14/32 , F23K5/007 , F23K2401/201 , F23K2900/05004 , F23N3/005 , F23N2037/08 , F23N2041/11
摘要： The object of the present invention is to provide a method for cutting with gas which uses a cutting tip including a preheating hole for forming a preheating flame with a fuel gas and an oxygen gas for preheating, and an oxygen gas hole for cutting a workpiece by injecting oxygen gas for cutting, and which can decrease an amount of hydrogen gas used by supply a fuel gas to the preheating hole, which is appropriate in both heating and cutting the workpiece, and an apparatus for cutting with gas, and the present invention provides an apparatus for cutting with gas (30) which supplies an oxygen gas, and a fuel gas to a cutting tip (20) including a preheating hole (23) and an oxygen gas hole for cutting (22), wherein the apparatus (30) includes a supply circuit for oxygen gas (50), a supply circuit for hydrogen gas (41), a supply circuit for hydrocarbon-based gas (45), and a gas supply control means (60), and the gas supply control means (60) can alter a ratio of the hydrogen gas and the hydrocarbon-based gas which are supplied to the preheating hole in a case of heating the workpiece and a case of cutting the workpiece.
摘要翻译： 本发明的目的是提供一种使用包括用于形成预热火焰的预热孔的切割尖端的燃料气体和氧气用于预热的气体切割方法，以及用于切割工件的氧气孔 注入用于切割的氧气，并且通过在加热和切割工件时适合于预热孔中的燃料气体供给所使用的氢气量以及用气体切割的设备，本发明提供 一种用于向供给氧气的气体（30）进行切割的装置和向包括预热孔（23）和用于切割的氧气孔（22）的切割尖端（20）进行切割的燃料气体，其中，所述装置（30） 包括氧气供给回路（50），氢气供给回路（41），烃类气体供给回路（45）以及气体供给控制单元（60），气体供给控制单元 60）可以改变氢气和h的比例 在加热工件的情况下供给预热孔的基于碳基的气体和切割工件的情况。
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公开(公告)号：US06313432B1
公开(公告)日：2001-11-06
申请号：US09446090
申请日：1999-12-17
申请人： Yozo Nagata , Masayuki Nagahori
发明人： Yozo Nagata , Masayuki Nagahori
IPC分类号： B23K2614
CPC分类号： B23K26/123 , B23K26/12 , B23K26/125 , B23K26/14 , B23K26/1437 , B23K26/1476
摘要： A development of a laser cutting method and a laser cutter in which the adverse effects such as self burning to the cutting surface can be prevented, when the material is cut at a high speed, has been desired. In order to achieve the object, the present invention provides a laser cutting method and a laser cutter in which a cutting laser beam 22 is applied to a material 25 to be cut at a cutting point 26, while ejecting gases 23 and 24 to the cutting point 26 or its surrounding area from a plurality of nozzle openings 30 and 31 arranged in a ring or in a line, wherein the oxygen concentrations of the gases 23 and 24 ejecting from at least one of the nozzle opening 30 and 31 are changed to adjust the oxygen concentration distribution in an area within several millimeters of the cutting point 26; thereby the cutting quality can be improved.
摘要翻译： 需要开发激光切割方法和激光切割机，其中当材料被高速切割时，可以防止诸如自身燃烧到切割表面的不利影响。 为了实现该目的，本发明提供了一种激光切割方法和激光切割器，其中切割激光束22施加到在切割点26处切割的材料25，同时将气体23和24喷射到切割 点26或其周围区域从排列成环或直线的多个喷嘴开口30和31，其中从喷嘴开口30和31中的至少一个排出的气体23和24的氧气浓度被改变以调整 在切割点26的几毫米内的区域中的氧浓度分布; 从而可以提高切割质量。
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公开(公告)号：US06492617B2
公开(公告)日：2002-12-10
申请号：US09829647
申请日：2001-04-10
IPC分类号： B23K2614
CPC分类号： B23K26/142 , B23K26/1494 , B23K26/389
摘要： The present invention stably supplies a side blow gas to a piercing site and prevents the adherence of spatter to a cutting nozzle. A hood, which is attached to a side blow gas nozzle, guides side blow gas jetted from a side blow gas nozzle to the piercing site and prevents spatter from adhering to the cutting nozzle as laser beam and assist gas are respectively radiated or jetted onto a cutting material through a communicating hole.
摘要翻译： 本发明稳定地向穿孔部位供给侧吹气体，防止飞溅物附着在切割喷嘴上。 附着在侧吹气体喷嘴的引擎罩引导从侧吹气体喷嘴喷射到穿刺部位的侧吹气体，并且防止飞溅物附着在切割喷嘴上，因为激光束和辅助气体分别被辐射或喷射到 通过连通孔切割材料。
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6.发明申请公开(公告)号：US20130015168A1
公开(公告)日：2013-01-17
申请号：US13637971
申请日：2011-02-21
IPC分类号： B23K26/16
CPC分类号： B23K26/38 , B23K26/14 , B23K26/1476 , B23K26/1482 , B23K2103/02
摘要： A laser cutting nozzle configured such that a laser beam is irradiated through a nozzle hole formed in a nozzle main body from an opening of the nozzle hole, and an assist gas surrounding the laser beam is emitted. The nozzle hole includes a first control flow path, a second control flow path, and a third control flow path formed in a coaxial cylindrical shape, in sequence from upstream toward downstream in a flow direction of the assist gas. If a diameter of the first control flow path is φA, a diameter of the second control flow path is φB, and a diameter of the third control flow path is φC, an equation φA
摘要翻译： 一种激光切割喷嘴，被配置为使得激光束从喷嘴主体的形成在喷嘴主体上的喷嘴孔照射，并且发射围绕激光束的辅助气体。 喷嘴孔包括第一控制流路，第二控制流路以及沿辅助气体的流动方向从上游向下游依次形成为同轴圆筒状的第三控制流路。 如果第一控制流路径的直径为A，则第二控制流路的直径为B，第三控制流路的直径为C，方程式为A <＆phgr; C <＆phgr; B满意。
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7.发明授权公开(公告)号：US09126288B2
公开(公告)日：2015-09-08
申请号：US13637971
申请日：2011-02-21
CPC分类号： B23K26/38 , B23K26/14 , B23K26/1476 , B23K26/1482 , B23K2103/02
摘要： A laser cutting nozzle configured such that a laser beam is irradiated through a nozzle hole formed in a nozzle main body from an opening of the nozzle hole, and an assist gas surrounding the laser beam is emitted. The nozzle hole includes a first control flow path, a second control flow path, and a third control flow path formed in a coaxial cylindrical shape, in sequence from upstream toward downstream in a flow direction of the assist gas. If a diameter of the first control flow path is φA, a diameter of the second control flow path is φB, and a diameter of the third control flow path is φC, an equation φA
摘要翻译： 一种激光切割喷嘴，被配置为使得激光束从喷嘴主体的形成在喷嘴主体上的喷嘴孔照射，并且发射围绕激光束的辅助气体。 喷嘴孔包括第一控制流路，第二控制流路以及沿辅助气体的流动方向从上游向下游依次形成为同轴圆筒状的第三控制流路。 如果第一控制流路径的直径为A，则第二控制流路的直径为B，第三控制流路的直径为C，方程式为A <＆phgr; C <＆phgr; B满意。
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8.发明授权公开(公告)号：US06316743B1
公开(公告)日：2001-11-13
申请号：US09247620
申请日：1999-02-10
IPC分类号： B23K2614
CPC分类号： B23K26/123 , B23K26/04 , B23K26/125 , B23K26/1435 , B23K26/1438 , B23K26/146 , B23K26/382 , B23K26/40 , B23K2103/04 , B23K2103/50
摘要： In a piercing operation prior to the laser cutting of steel, etc., the development of a technology in which a piercing hole of the intended shape is obtained in a short time, even for a thick cut work. An oxygen gas coaxial to the laser beam applied towards the cut work and a low concentration gas with a low oxygen concentration and major components comprising nitrogen gas, air, or a mixture thereof discharged from an outer gas nozzle disposed so as to surround the outer side of the flow of this oxygen gas is supplied and disposed towards said cut work, and can realize shortening of the time, etc., of the piercing operation time by applying a laser beam to the cut work. In addition, a laser processing nozzle provided with an inner gas nozzle which discharges oxygen gas and an outer gas nozzle which discharges low concentration gas, and a laser cutting apparatus provided with this nozzle is provided.
摘要翻译： 在激光切割钢等之前的穿孔操作中，即使在粗切削加工中也能够在短时间内获得预期形状的穿孔的技术的发展。 与激光束同轴的氧气与被切割的工件同时运转，低浓度气体具有低的氧浓度，并且主要成分包括氮气，空气或其混合物，其从外部气体喷嘴排出，以便围绕外侧 这种氧气的流动被提供并且朝向所述切割工件设置，并且可以通过对切割工件施加激光束来实现刺穿操作时间的缩短等。 此外，设置有设置有排出氧气的内部气体喷嘴和排出低浓度气体的外部气体喷嘴的激光加工喷嘴和设置有该喷嘴的激光切割装置。
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