-
公开(公告)号：JP2003239091A
公开(公告)日：2003-08-27
申请号：JP2002345085
申请日：2002-11-28
Applicant: UNITED TECHNOLOGIES CORP
Inventor： ABRILES BETH KWIATKOWSKI , MANIS BRYAN W , MADHAVA MURALI N
Abstract: PROBLEM TO BE SOLVED: To provide a masking system which minimizes depletion caused by fluoride, and substantially prevents intergranular attack. SOLUTION: The present invention relates to a maskant system for use with a fluoride cleaning system. The maskant system comprises a parting compound applied to a surface which requires protection and a chromium rich maskant for substantially preventing intergranular attack and which reduces a depletion zone. The parting compound contains colloidal silica, de-ionized water, fused alumina grains, and alumina powder. The maskant is comprised of chromium powder mixed with a binder, a wetting agent, a thickening agent, and water. The maskant system may be used to clean components formed from nickel-based or cobalt-based alloys using a fluoride cleaning system and has particular utility when components formed from single crystal nickel based alloys are cleaned using a fluoride cleaning system. COPYRIGHT: (C)2003,JPO
-
公开(公告)号：JP2002160091A
公开(公告)日：2002-06-04
申请号：JP2001262053
申请日：2001-08-30
Applicant: UNITED TECHNOLOGIES CORP
Inventor： ABRILES BETH KWIATKOWSKI , RUTZ DAVID A , MANIS BRYAN W
Abstract: PROBLEM TO BE SOLVED: To provide an improved brazing filler metal for cleaning and repairing engine parts, and provide a more rapid and sure method for cleaning of gas- turbine engine parts which is required for application of brazing. SOLUTION: A brazing paste preferably comprises lithium fluoride of
-
公开(公告)号：DE60124042D1
公开(公告)日：2006-12-07
申请号：DE60124042
申请日：2001-08-22
Applicant: UNITED TECHNOLOGIES CORP
Inventor： ABRILES BETH KWIATKOWSKI , RUTZ DAVID A , MANIS BRYAN W
Abstract: The present invention relates to a self cleaning braze paste which is used in the repair of gas turbine engines. The braze paste comprises lithium fluoride in an amount sufficient to act as a flux which allows the braze material to flow into a crack or void in a part to be repaired up to an amount where there is no residual lithium or fluoride in the crack or void, preferably up to about 20% by volume, a gel binder in an amount up to about 15% by volume, and the balance comprising at least one of a nickel braze alloy and a cobalt braze alloy. In a preferred embodiment, the lithium fluoride is present in an amount from about 10% to about 15% by volume. The braze material of the present invention may be applied in a paste form or, alternatively, in a paint or tape form. A method for cleaning and repairing a braze joint is also disclosed. The method broadly comprises the steps of forming a braze material containing lithium fluoride in the above mentioned range, a gel binder in an amount up to about 15% by volume, and the balance comprising at least one of a nickel braze alloy or a cobalt braze alloy, applying the braze material to the braze joint, and heating the braze material to a temperature in the range of from about a temperature sufficient to cause the lithium fluoride to volatize up to about 2300 DEG F for a time period from about 1.0 minute to about 30.0 minutes.
-
公开(公告)号：DE60124042T2
公开(公告)日：2007-05-03
申请号：DE60124042
申请日：2001-08-22
Applicant: UNITED TECHNOLOGIES CORP
Inventor： ABRILES BETH , RUTZ DAVID A , MANIS BRYAN W
Abstract: The present invention relates to a self cleaning braze paste which is used in the repair of gas turbine engines. The braze paste comprises lithium fluoride in an amount sufficient to act as a flux which allows the braze material to flow into a crack or void in a part to be repaired up to an amount where there is no residual lithium or fluoride in the crack or void, preferably up to about 20% by volume, a gel binder in an amount up to about 15% by volume, and the balance comprising at least one of a nickel braze alloy and a cobalt braze alloy. In a preferred embodiment, the lithium fluoride is present in an amount from about 10% to about 15% by volume. The braze material of the present invention may be applied in a paste form or, alternatively, in a paint or tape form. A method for cleaning and repairing a braze joint is also disclosed. The method broadly comprises the steps of forming a braze material containing lithium fluoride in the above mentioned range, a gel binder in an amount up to about 15% by volume, and the balance comprising at least one of a nickel braze alloy or a cobalt braze alloy, applying the braze material to the braze joint, and heating the braze material to a temperature in the range of from about a temperature sufficient to cause the lithium fluoride to volatize up to about 2300 DEG F for a time period from about 1.0 minute to about 30.0 minutes.
-
Patent Agency Ranking
公开(公告)号：AT343451T
公开(公告)日：2006-11-15
申请号：AT01402211
申请日：2001-08-22
Applicant: UNITED TECHNOLOGIES CORP
Inventor： ABRILES BETH KWIATKOWSKI , RUTZ DAVID A , MANIS BRYAN W
Abstract: The present invention relates to a self cleaning braze paste which is used in the repair of gas turbine engines. The braze paste comprises lithium fluoride in an amount sufficient to act as a flux which allows the braze material to flow into a crack or void in a part to be repaired up to an amount where there is no residual lithium or fluoride in the crack or void, preferably up to about 20% by volume, a gel binder in an amount up to about 15% by volume, and the balance comprising at least one of a nickel braze alloy and a cobalt braze alloy. In a preferred embodiment, the lithium fluoride is present in an amount from about 10% to about 15% by volume. The braze material of the present invention may be applied in a paste form or, alternatively, in a paint or tape form. A method for cleaning and repairing a braze joint is also disclosed. The method broadly comprises the steps of forming a braze material containing lithium fluoride in the above mentioned range, a gel binder in an amount up to about 15% by volume, and the balance comprising at least one of a nickel braze alloy or a cobalt braze alloy, applying the braze material to the braze joint, and heating the braze material to a temperature in the range of from about a temperature sufficient to cause the lithium fluoride to volatize up to about 2300 DEG F for a time period from about 1.0 minute to about 30.0 minutes.
-
公开(公告)号：DE60238965D1
公开(公告)日：2011-03-03
申请号：DE60238965
申请日：2002-11-28
Applicant: UNITED TECHNOLOGIES CORP
Inventor： ABRILES BETH KWIATKOWSKI , MANIS BRYAN W , MADHAVA MURALI N
-
公开(公告)号：CA2353374A1
公开(公告)日：2002-02-28
申请号：CA2353374
申请日：2001-07-23
Applicant: UNITED TECHNOLOGIES CORP
Inventor： KWIATKOWSKI ABRILES BETH , RUTZ DAVID A , MANIS BRYAN W
Abstract: The present invention relates to a self cleaning braze paste which is used in the repair of gas turbine engines. The braze paste comprises lithium fluoride in an amount sufficient to act as a flux which allows the braze material to flow into a crack or void in a part to be repaired up to an amount where there is no residual lithium or fluoride in the crack or void, preferably up to about 20% by volume, a gel binder in an amount up to about 15% by volume, and the balance comprising at least one of a nickel braze alloy and a cobalt braze alloy. In a preferred embodiment, the lithium fluoride is present in an amount from about loo to-about 15% by volume. The braze material of the present invention may be applied in a paste form or, alternatively, in a paint or tape form. A method for cleaning and repairing a braze joint is also disclosed. The method broadly comprises the steps of forming a braze material containing lithium fluoride in the above mentioned range, a gel binder in an amount up to about 15% by volume, and the balance comprising at least one of a nickel braze alloy or a cobalt braze alloy, applying the braze material to the braze joint, and heating the braze material to a temperature in the range of from about a temperature sufficient to cause the lithium fluoride to volatize up to about 2300ÀFfor a time period from about 1.0 minute to about 30.0 minutes.
-
公开(公告)号：AT496153T
公开(公告)日：2011-02-15
申请号：AT02258204
申请日：2002-11-28
Applicant: UNITED TECHNOLOGIES CORP
Inventor： ABRILES BETH KWIATKOWSKI , MANIS BRYAN W , MADHAVA MURALI N
-
公开(公告)号：CA2353374C
公开(公告)日：2004-09-28
申请号：CA2353374
申请日：2001-07-23
Applicant: UNITED TECHNOLOGIES CORP
Inventor： MANIS BRYAN W , KWIATKOWSKI ABRILES BETH , RUTZ DAVID A
Abstract: The present invention relates to a self cleaning braze paste which is used in the repair of gas turbine engines. The braze paste comprises lithium fluoride in an amount sufficient to act as a flux which allows the braze material to flow into a crack or void in a part to be repaired up to an amount where there is no residual lithium or fluoride in the crack or void, preferably up to about 20% by volume, a gel binder in an amount up to about 15% by volume, and the balance comprising at least one of a nickel braze alloy and a cobalt braze alloy. In a preferred embodiment, the lithium fluoride is present in an amount from about loo to-about 15% by volume. The braze material of the present invention may be applied in a paste form or, alternatively, in a paint or tape form. A method for cleaning and repairing a braze joint is also disclosed. The method broadly comprises the steps of forming a braze material containing lithium fluoride in the above mentioned range, a gel binder in an amount up to about 15% by volume, and the balance comprising at least one of a nickel braze alloy or a cobalt braze alloy, applying the braze material to the braze joint, and heating the braze material to a temperature in the range of from about a temperature sufficient to cause the lithium fluoride to volatize up to about 2300ÀFfor a time period from about 1.0 minute to about 30.0 minutes.
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.029 seconds)
