叶輪是汽輪机的主要部件之一,通常在高温高压和高速迴轉的情况下工作,要求在工作中絕对可靠,为此,对叶輪的制造質量,提出了一系列的技朮要求,在叶輪的制造过程中,必須根据这些要求,通过材料試驗、金相分析、內应力測定,硫印試驗、酸蝕白点試驗、物理探伤,靜力平衡及超速試驗等8个試驗項目,对叶輪質量进行全面的鑑定。其 Impeller is one of the main components of the steam turbine, usually working under high temperature, high pressure and high-speed rotation, which requires absolute reliability in the work. Therefore, a series of technical requirements are proposed for the manufacturing quality of the impeller. Impeller manufacturing process must be based on these requirements, through the material test, metallographic analysis, internal stress measurement, sulfur printing test, acid white point test, physical testing, static balance and speeding test of eight pilot projects, Impeller quality comprehensive appraisal. its