| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a gas pressure welding method for a steel stock, which applies a hydrogen-ethylene mixture gas to the gas pressure welding of a steel stock to improve workability. <P>SOLUTION: The gas pressure welding method for a steel stock includes: butting steel stocks 1, 2 on each other; spraying the hydrogen-ethylene mixture gas together with an oxygen gas to a butting portion 3 of the steel stocks 1, 2; and heating the butting portion 3 of the steel stocks 1, 2 with flames of the hydrogen-ethylene mixture gas while applying a pressure to the steel stocks 1, 2, to joint the steel stocks 1, 2 to each other. <P>COPYRIGHT: (C)2013,JPO&INPIT |
