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US 2013/0340893 A1Published application
Combustible gas
AssigneeIwatani Corporation
InventorsMasahiko Nakamuta, Toshiaki Hashimoto, Yoshifumi Yoshida, Kazuto Matsumoto
Life of this patent
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Abstract
Combustible gas, which is easy to be stored, transported and the like and can contribute to improving the quality of a finished state of an operation such as gas cutting, gas welding or brazing, contains ethylene at 38 v/v % or more and 45 v/v % or less and the remainder being hydrogen and unavoidable impurity.
Claims6
A combustible gas used as a combustion gas in gas cutting of a steel, comprising:
- ethylene at 38 v/v % or more and 45 v/v % or less, and
- the remainder being hydrogen and unavoidable impurity.
A gas cutting method of steel by using a combustible gas as a combustion gas to cut a steel,
- said combustible gas comprising:
- ethylene at 38 v/v % or more and 45 v/v % or less, and
- the remainder being hydrogen and unavoidable impurity.
Dependencies are inferred from the claim text.