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    • 9. 发明授权
    • Methods for repairing gas turbine engine components
    • 修理燃气涡轮发动机部件的方法
    • US07244320B2
    • 2007-07-17
    • US10858365
    • 2004-06-01
    • David R. MalleyCarl E. KellyRobert P. Schaefer
    • David R. MalleyCarl E. KellyRobert P. Schaefer
    • C22C30/00C21D1/70C22F1/16
    • B23P6/005C21D9/50
    • Systems and methods for repairing Thermo-Span® gas turbine engine components are described herein. Embodiments of these methods minimize post-weld residual stresses in a weld repaired Thermo-Span® component by solution heat treating the component by heating the component to about 2000° F.±25° F., holding the component at about 2000° F.±25° F. for about one hour; and cooling the component to below about 700° F. at a rate equivalent to cooling in air; and precipitation heat treating the component by heating the component to about 1325° F.±25° F., holding the component at about 1325° F.±25° F. for about 8 hours, cooling the component to about 1150° F.±25° F. at a maximum rate of about 100° F./hour, holding the component at about 1150° F.±25° F. for about 8 hours, and cooling the component at a predetermined cooling rate. Dimensions of the fully-machined and weld repaired component are maintained during solution heat treating and precipitation heat treating via custom designed furnace tools.
    • 本文描述了用于修理Thermo-Span(R)燃气涡轮发动机部件的系统和方法。 这些方法的实施例通过将组件加热至约2000°F±25°F,将组件保持在约2000°,通过对部件进行固溶热处理,使焊接修补的Thermo-Span(R)部件中的焊后残余应力最小化 F.±25°F约1小时; 并以相当于在空气中冷却的速率将组分冷却至约700°F以下; 并通过将组分加热至约1325°F±25°F进行沉淀热处理,将组分保持在约1325°F±25°F下约8小时,将组分冷却至约1150°F ±25°F,最大速率为约100°F /小时,将组分保持在约1150°F±25°F约8小时,并以预定的冷却速率冷却组分。 在通过定制设计的炉具的固溶热处理和沉淀热处理期间,维持完全加工和焊接修补部件的尺寸。