| 摘要 |
PURPOSE:To obtain gas piping for welding device that maintains dew point of the gas and stabilizes the quality of welding, by using fluororesin hoses in supply piping of shield gas. CONSTITUTION:In a gas shielded welding device, fluororesin hoses are used for hoses connected to the welding torch in shield gas supply piping. As the dew point of the gas does not rise, moisture condensed in the hoses can be removed easily. Further, as the purity of the gas does not lower, weld zones of stable quality free from defect such as blowholes can be obtained. |
