Title:
GAS CUTTING METHOD AND GAS CUTTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2010/032376
Kind Code:
A1
Abstract:
Provided is a gas cutting method for cutting a workpiece by using a cutting tip provided with a preheating hole for forming a preheating flame by a combustion gas and a preheating oxygen gas and a cutting oxygen hole for jetting a cutting oxygen gas, which is capable of reducing the amount of consumption of a hydrogen gas by supplying the combustion gas suitable for heating of the workpiece and cutting of the work piece, respectively, to the preheating hole. Also provided is a gas cutting device. A gas cutting device (30) for supplying an oxygen gas and a fuel gas to a cutting tip (20) provided with a preheating hole (23) and a cutting oxygen hole (22) is characterized by being provided with an oxygen gas supply circuit (50), a hydrogen gas supply circuit (41), a propane gas supply circuit (45), and a control unit (60), wherein the control unit (60) is configured to cause the ratios of a hydrogen gas and a hydrocarbon-based gas which are to be supplied to the preheating hole (23) when the workpiece is heated and when the workpiece is cut to differ from each other.
Inventors:
NAGAHORI, Masayuki (11 Oaza Chikumazawa, Miyoshi-machi, Iruma-gu, Saitama 85, 〒3548585, JP)
長堀正幸 (〒85 埼玉県入間郡三芳町大字竹間沢１１番地 日酸ＴＡＮＡＫＡ株式会社内 Saitama, 〒3548585, JP)
KAMIKIHARA, Hirotaka (11 Oaza Chikumazawa, Miyoshi-machi, Iruma-gu, Saitama 85, 〒3548585, JP)
上木原洋丘 (〒85 埼玉県入間郡三芳町大字竹間沢１１番地 日酸ＴＡＮＡＫＡ株式会社内 Saitama, 〒3548585, JP)
TAKEDA, Takashi (11 Oaza Chikumazawa, Miyoshi-machi, Iruma-gu, Saitama 85, 〒3548585, JP)
武田隆志 (〒85 埼玉県入間郡三芳町大字竹間沢１１番地 日酸ＴＡＮＡＫＡ株式会社内 Saitama, 〒3548585, JP)
長堀正幸 (〒85 埼玉県入間郡三芳町大字竹間沢１１番地 日酸ＴＡＮＡＫＡ株式会社内 Saitama, 〒3548585, JP)
KAMIKIHARA, Hirotaka (11 Oaza Chikumazawa, Miyoshi-machi, Iruma-gu, Saitama 85, 〒3548585, JP)
上木原洋丘 (〒85 埼玉県入間郡三芳町大字竹間沢１１番地 日酸ＴＡＮＡＫＡ株式会社内 Saitama, 〒3548585, JP)
TAKEDA, Takashi (11 Oaza Chikumazawa, Miyoshi-machi, Iruma-gu, Saitama 85, 〒3548585, JP)
武田隆志 (〒85 埼玉県入間郡三芳町大字竹間沢１１番地 日酸ＴＡＮＡＫＡ株式会社内 Saitama, 〒3548585, JP)
Application Number:
JP2009/003946
Publication Date:
March 25, 2010
Filing Date:
August 19, 2009
Export Citation:
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)
NAGAHORI, Masayuki (11 Oaza Chikumazawa, Miyoshi-machi, Iruma-gu, Saitama 85, 〒3548585, JP)
長堀正幸 (〒85 埼玉県入間郡三芳町大字竹間沢１１番地 日酸ＴＡＮＡＫＡ株式会社内 Saitama, 〒3548585, JP)
KAMIKIHARA, Hirotaka (11 Oaza Chikumazawa, Miyoshi-machi, Iruma-gu, Saitama 85, 〒3548585, JP)
上木原洋丘 (〒85 埼玉県入間郡三芳町大字竹間沢１１番地 日酸ＴＡＮＡＫＡ株式会社内 Saitama, 〒3548585, JP)
TAKEDA, Takashi (11 Oaza Chikumazawa, Miyoshi-machi, Iruma-gu, Saitama 85, 〒3548585, 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)
NAGAHORI, Masayuki (11 Oaza Chikumazawa, Miyoshi-machi, Iruma-gu, Saitama 85, 〒3548585, JP)
長堀正幸 (〒85 埼玉県入間郡三芳町大字竹間沢１１番地 日酸ＴＡＮＡＫＡ株式会社内 Saitama, 〒3548585, JP)
KAMIKIHARA, Hirotaka (11 Oaza Chikumazawa, Miyoshi-machi, Iruma-gu, Saitama 85, 〒3548585, JP)
上木原洋丘 (〒85 埼玉県入間郡三芳町大字竹間沢１１番地 日酸ＴＡＮＡＫＡ株式会社内 Saitama, 〒3548585, JP)
TAKEDA, Takashi (11 Oaza Chikumazawa, Miyoshi-machi, Iruma-gu, Saitama 85, 〒3548585, JP)
International Classes:
B23K7/10; F23D14/42
Attorney, Agent or Firm:
SHIGA, Masatake et al. (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)
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