| 摘要 |
PURPOSE: A method for removing foreign matters from an oil feed pipe of a gas turbine is provided to improve the quality of the product, and to cut down manufacturing cost by preventing generation of foreign matters inside the oil feed pipe and eliminating scale completely. CONSTITUTION: To manufacture an oil feed pipe(20) formed in an inlet casing of a gas turbine, the oil feed pipe is manufactured through the casting process. Chrome sand(22) is charged in the oil feed pipe before the heat treatment of the processed oil feed pipe, and both sides of the oil feed pipe are sealed by using clay(24). The oil feed pipe is processed with the heat when combined with the inlet casing of the gas turbine. Chrome sand is removed from the oil feed pipe, and scale is removed from the oil feed pipe by using a grinding apparatus.
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