公开(公告)号：DE69509083D1

公开(公告)日：1999-05-20

申请号：DE69509083

申请日：1995-01-31

Applicant: UNITED TECHNOLOGIES CORP

Inventor： DRAGHI PETER ,  PIETRUSKA NORMAN ,  ARMSTRONG WAYNE

IPC: F01D5/28 ,  B05D7/14 ,  B23K35/02 ,  B23K35/14 ,  B23K35/30 ,  B23P6/04 ,  C23C30/00 ,  C23G5/00 ,  F02C7/00 ,  B23K35/36

Abstract: A repair coating for superalloy articles, such as gas turbine engine components, includes a volatile organic carrier or water-based carrier, a fluxing agent, a thickening agent, balance a filler mix. The filler mix consists of at least two distinct particulate components. The mix includes a first particulate component having a composition which approximates that of the article being repaired. The mix also includes a second particulate component having a composition approximating that of the article and a melting point depressant, such as boron. This melting point depressant is substantially in excess of that in the article and sufficient to provide melting of a portion of the mix at a processing temperature below the melting temperature of the article. The above filler mix is blended with the other constituents to form the repair coating which is applied to an article.

公开(公告)号：DE69504367T2

公开(公告)日：1999-05-06

申请号：DE69504367

申请日：1995-10-23

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SHURMAN BRIAN ,  DRAGHI PETER

IPC: B08B3/12 ,  B08B9/00 ,  B64F5/00 ,  F01D25/00 ,  F02B77/04 ,  F02C7/30

Abstract: A cleaning method for gas turbine engine airfoils includes a step of immersing an ultrasonic agitator, such as a welding horn, into a tank with a cleaning solution and a step of directing the ultrasonic agitator onto the portion of the airfoil having the crust layer. A subsequent step of high pressure water jet spray removes the crust debris. The cleaning method of the present invention significantly increases the power density of the ultrasonic cleaning.

公开(公告)号：DE69509083T2

公开(公告)日：1999-11-18

申请号：DE69509083

申请日：1995-01-31

Applicant: UNITED TECHNOLOGIES CORP

Inventor： DRAGHI PETER ,  PIETRUSKA NORMAN ,  ARMSTRONG WAYNE

IPC: F01D5/28 ,  B05D7/14 ,  B23K35/02 ,  B23K35/14 ,  B23K35/30 ,  B23P6/04 ,  C23C30/00 ,  C23G5/00 ,  F02C7/00 ,  B23K35/36

Abstract: A repair coating for superalloy articles, such as gas turbine engine components, includes a volatile organic carrier or water-based carrier, a fluxing agent, a thickening agent, balance a filler mix. The filler mix consists of at least two distinct particulate components. The mix includes a first particulate component having a composition which approximates that of the article being repaired. The mix also includes a second particulate component having a composition approximating that of the article and a melting point depressant, such as boron. This melting point depressant is substantially in excess of that in the article and sufficient to provide melting of a portion of the mix at a processing temperature below the melting temperature of the article. The above filler mix is blended with the other constituents to form the repair coating which is applied to an article.

公开(公告)号：DE69504367D1

公开(公告)日：1998-10-01

申请号：DE69504367

申请日：1995-10-23

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SHURMAN BRIAN ,  DRAGHI PETER

IPC: B08B3/12 ,  B08B9/00 ,  B64F5/00 ,  F01D25/00 ,  F02B77/04 ,  F02C7/30

Abstract: A cleaning method for gas turbine engine airfoils includes a step of immersing an ultrasonic agitator, such as a welding horn, into a tank with a cleaning solution and a step of directing the ultrasonic agitator onto the portion of the airfoil having the crust layer. A subsequent step of high pressure water jet spray removes the crust debris. The cleaning method of the present invention significantly increases the power density of the ultrasonic cleaning.