发明申请
- 专利标题： GAS CUTTING METHOD, GAS CUTTING MACHINE, AND CUTTING TIP
- 专利标题（中）： 气体切割方法，气体切割机和切割机
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申请号： US13641943申请日： 2011-03-24
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公开(公告)号： US20130032250A1公开(公告)日： 2013-02-07
- 发明人: Toyoyuki Sato , Yasuyuki Yamamoto , Takashi Kato , Masayuki Nagahori , Hirotaka Kamikihara , Takashi Takeda
- 申请人： Toyoyuki Sato , Yasuyuki Yamamoto , Takashi Kato , Masayuki Nagahori , Hirotaka Kamikihara , Takashi Takeda
- 申请人地址： JP TOKYO
- 专利权人： TAIYO NIPPON SANSO CORPORATION
- 当前专利权人： TAIYO NIPPON SANSO CORPORATION
- 当前专利权人地址： JP TOKYO
- 优先权： JP2010-097258 20100420
- 国际申请： PCT/JP2011/057206 WO 20110324
- 主分类号： B23K7/00
- IPC分类号： B23K7/00 ; B23K7/06
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 %.
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