公开(公告)号：US4141127A

公开(公告)日：1979-02-27

申请号：US745166

申请日：1976-11-26

Applicant: Salvatore J. Cretella ,  Matthew Bernardo ,  Ralph T. De Musis

Inventor： Salvatore J. Cretella ,  Matthew Bernardo ,  Ralph T. De Musis

IPC: B23P6/00 ,  F01D5/00 ,  F01D5/28 ,  B23P15/02 ,  B23P7/04

CPC classification number: C22F1/10 ,  B23K10/027 ,  B23K31/02 ,  B23K35/0244 ,  B23K35/3046 ,  B23K35/3607 ,  B23P6/007 ,  F01D5/005 ,  F01D5/288 ,  B23K2201/001 ,  Y02T50/673 ,  Y10T29/49318 ,  Y10T29/49746

Abstract: A method of refurbishing vane or blade components. Used turbine vanes or blades are cleaned, annealed and in some cases slotted adjacent their ends, after which any cooling passages (in the case of vanes) are welded closed and all cracks welded over, on both leading and trailing edges. The trailing edge, for a vane or blade component having a short chord, is built up by welding along its full length with an alloy wire, after which any slots that were cut adjacent the ends are closed, also by welding. Then the worn surfaces of the vane or blade are built-up by a plasma spray process, using a metal powder with added silica, to a thickness which can be as great as 30 to 40 thousandths of an inch. The built-up vane or blade is then sintered and thereafter surface finished to conform to the original contour of the component when new. Any cooling holes are finally recut, and the vane or blade polished as required and inspected.

Abstract translation: 一种翻新叶片或叶片部件的方法。 使用的涡轮叶片或叶片被清洁，退火并且在某些情况下在其端部附近开槽，之后任何冷却通道（在叶片的情况下）被焊接封闭，并且所有裂纹在前缘和后缘两端焊接。 用于具有短弦的叶片或叶片部件的后缘通过使用合金丝沿着其全长进行焊接来构建，之后通过焊接将相邻端部切割的任何槽封闭。 然后叶片或叶片的磨损表面通过等离子体喷涂工艺，使用添加有二氧化硅的金属粉末构成，厚度可达30至40千分之一英寸。 然后将积木式叶片或叶片烧结，此后，当新的时候，表面加工完成以符合组件的原始轮廓。 任何冷却孔最后重新开始，叶片或叶片根据需要进行抛光和检查。

公开(公告)号：US4028787A

公开(公告)日：1977-06-14

申请号：US613479

申请日：1975-09-15

Applicant: Salvatore J. Cretella ,  Matthew Bernardo ,  Ralph T. De Musis

Inventor： Salvatore J. Cretella ,  Matthew Bernardo ,  Ralph T. De Musis

IPC: B23P6/00 ,  F01D5/00 ,  F01D5/28 ,  B23P15/04 ,  B23P7/00

CPC classification number: C22F1/10 ,  B23K10/027 ,  B23K31/02 ,  B23K35/0244 ,  B23K35/3046 ,  B23K35/3607 ,  B23P6/007 ,  F01D5/005 ,  F01D5/288 ,  B23K2201/001 ,  Y02T50/673 ,  Y10T29/49318 ,  Y10T29/49746

Abstract: A refurbished turbine vane and method of producing the same. Used turbine vanes are cleaned, annealed and slotted adjacent their ends, after which the cooling passages are welded closed and all cracks welded over, on both leading and trailing edges. The trailing edge, for a vane having a short chord, is built up by welding along its full length with an alloy wire, after which the slots that were cut adjacent the ends are closed, also by welding. Then the worn surfaces of the vane are built-up by a plasma spray process, using a metal powder with added silica, to a thickness as great as 30 to 40 thousandths of an inch. The built-up vane is then sintered and thereafter surface finished to conform to the original contour of the blade when new. The cooling holes are finally recut, and the vane polished as required and inspected.

Abstract translation: 翻新的涡轮叶片及其制造方法。 使用的涡轮叶片在其端部附近进行清洁，退火和开槽，之后冷却通道被焊接封闭，并且在前缘和后缘都焊接有所有裂纹。 用于具有短弦的叶片的后缘通过用合金线沿着其全长进行焊接而构成，之后通过焊接将相邻端部切割的槽封闭。 然后通过等离子体喷涂工艺，使用加入二氧化硅的金属粉末，将叶片的磨损表面构成厚度达30至40千分之一英寸的厚度。 然后将积层叶片烧结，此后，当新的时候，表面加工完成以符合叶片的原始轮廓。 冷却孔最后重新进入，叶片根据需要进行抛光和检查。