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Title:
GAS CUTTNG METHOD AND GAS CUTTING DEVICE, AND CUTTING NOZZLE
Document Type and Number:
WIPO Patent Application WO/2011/132496
Kind Code:
A1
Abstract:
Provided are a gas cutting method, gas cutting device, and cutting nozzle whereby: a fuel gas is obtained by mixing hydrogen gas with a hydrocarbon gas; a preheating flame formed by mixing and igniting the fuel gas with oxygen gas for preheating is sprayed from the tip of a cutting nozzle to heat a workpiece; and the heated workpiece is then cut by spraying the workpiece with an oxygen gas for cutting. The content of the hydrocarbon gas in the fuel gas is over 0 volume% and less than or equal to 4 volume%.

Inventors:
SATO Toyoyuki (3-26 Koyama 1-chome, Shinagawa-k, Tokyo 58, 〒1428558, JP)
佐藤 豊幸 (〒58 東京都品川区小山一丁目3番26号 大陽日酸株式会社内 Tokyo, 〒1428558, JP)
YAMAMOTO Yasuyuki (3-26 Koyama 1-chome, Shinagawa-k, Tokyo 58, 〒1428558, JP)
山本 康之 (〒58 東京都品川区小山一丁目3番26号 大陽日酸株式会社内 Tokyo, 〒1428558, JP)
KATO Takashi (3-26 Koyama 1-chome, Shinagawa-k, Tokyo 58, 〒1428558, JP)
加藤 隆 (〒58 東京都品川区小山一丁目3番26号 大陽日酸株式会社内 Tokyo, 〒1428558, JP)
Application Number:
JP2011/057206
Publication Date:
October 27, 2011
Filing Date:
March 24, 2011
Export Citation:
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Assignee:
TAIYO NIPPON SANSO CORPORATION (3-26, Koyama 1-chome Shinagawa-k, Tokyo 58, 〒1428558, JP)
大陽日酸株式会社 (〒58 東京都品川区小山一丁目3番26号 Tokyo, 〒1428558, JP)
NISSAN TANAKA CORPORATION (11 Oaza Chikumazawa, Miyoshi-machi Iruma-gu, Saitama 85, 〒3548585, JP)
日酸TANAKA株式会社 (〒85 埼玉県入間郡三芳町大字竹間沢11番地 Saitama, 〒3548585, JP)
SATO Toyoyuki (3-26 Koyama 1-chome, Shinagawa-k, Tokyo 58, 〒1428558, JP)
佐藤 豊幸 (〒58 東京都品川区小山一丁目3番26号 大陽日酸株式会社内 Tokyo, 〒1428558, JP)
YAMAMOTO Yasuyuki (3-26 Koyama 1-chome, Shinagawa-k, Tokyo 58, 〒1428558, JP)
山本 康之 (〒58 東京都品川区小山一丁目3番26号 大陽日酸株式会社内 Tokyo, 〒1428558, JP)
International Classes:
B23K7/10
Attorney, Agent or Firm:
SHIGA Masatake et al. (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)
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Claims: