Braze composition and process of use

Abstract

To provide a braze composition for joining components.SOLUTION: A composition includes the following constituents in the following approximate weight percentages: chromium of 15-17; silicon of 2.5-3.5; cobalt of 6.0-8.0; aluminum of 1.0-2.0; tantalum of 1.5-2.5; boron of 1.5-2.5; yttrium of 0.015-0.025; nickel of the balance; and incidental impurities.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure generally relates to parts an article for joining U-gumi components. Furthermore, port In particular, the present disclosure relates to an article for joining parts components U-gumi that maintains the ductility of a brazed joint having a continuous centerline eutectic phase And, . Suppress the formation, Regarding wax compositions

Background Art

[0002] parts (for example, Limitations It is not something that should be done. associated with joining the components in power generation, aerospace at and other fields parts such as )of turbines In the field of are increasing due to a number of factors. Such factors and improvements include, but are not limited to, turbomachinery construction, turbine Iku temperature as and the associated complexity of components used in these fields. In a combustor assembly that includes a micromixer Operation within a plate aperture High temperature and a process is applied to parts stabilize the assembly and tube minimize vibration within the plate Assembly [[ID=6】 along by fixing tube tube Rupu Iku In some instances, the fixing is achieved by friction welding, and in other instances, by using a relatively expensive brazing filler metal. Such fixing processes are time It may contain consuming and expenses and This can happen, do not always achieve but the desired results It's not possible. but and in extreme settings may require rework It can happen During operation within the plate aperture in the micromixer tube The potential vibration is , causing wear and tear metal loss and micromixer tube tip failure This could lead to... and ultimately the combustor of efficiency decline and failure This could lead to exists.

Summary of the Invention

[0003] The first aspect of the present disclosure is Outline in weight percentage chromium 15 - 17 silicon 2.5 - 3.5 cobalt 6.0 - 8.0 aluminum 1.0 - 2.0 tantalum 1.5 - 2.5 boron 1.5 - 2.5 yttrium 0.015 - 0.025 nickel the balance,[[]] and inevitable impurities to provide a composition.

[0004] The second aspect of the present disclosure is Outline in weight percentage chromium 15 - 17 silicon 2.5 - 3.5<00-00079>cobalt 6.0 - 8.0 aluminum 1.0 - 2.0 tantalum 1.5 - 2.5 boron 1.5 - 2.5 yttrium 0.015 - 0.025 nickel the balance,[[]] and inevitable impurities to provide a [[[]] material [[[]].[[]]

[0005] The third aspect of the present disclosure is Outline in weight percentage chromium 15 - 17 silicon 2.5 - 3.5 Cobalt 6.0 - 8.0 Aluminum 1.0 - 2.0 Tantalum 1.5 - 2.5 Boron 1.5 - 2.5 Yttrium 0.015 - 0.025 Nickel the balance, and Including inevitable impurities provides a material used How to use to provide. This method is used material in a turbo machine parts applied to the joint between Step and heated to melt the material to form a molten material and the Material is made to flow into the joint Inside and the molten Step is cooled and solidified Cool the material to hand , Turbomachinery parts join Step including.

[0006] A further aspect of the present disclosure is Outline in weight percentage, Chromium 16 Silicon 3 Cobalt 7 Aluminum 1.5 Tantalum 2 Boron 1.5 Yttrium 0.02 Nickel the balance, and Including inevitable impurities provides a material used.

[0007] An exemplary aspect of the present disclosure is described herein As described to solve problems and / or It is written other problems not addressed be .

[0008] Other features of the present disclosure The above are described in various embodiments of the present disclosure About as showIn conjunction with the attached drawings, the following detailed description of various aspects of this disclosure is relevant. capacity Understanding the I Ching You can cormorant. [Brief explanation of the drawing]

[0009] [Figure 1] This is a schematic diagram of an object joined with a wax composition according to an embodiment of this disclosure. [Figure 2] This is a schematic diagram of a wedge-shaped gap filled with a wax composition according to the embodiment of this disclosure. [Modes for carrying out the invention]

[0010] In addition, The drawings in this disclosure are not necessarily Not to scale The drawings show typical embodiments of this disclosure. This is merely an example, Disclosure technical Something that limits the scope isn't it .drawing In , Similar The sign is multiple Between drawings Similar configuration Represents an element.

[0011] first, This disclosure Technical content To explain clearly Furthermore, the relevant brazing materials and treatments are mentioned and explain When using Select a word It is necessary ru. as much as possible , general industry The term, normal meaning Use in a manner that matches (Details will be provided separately.) It was done Unless otherwise specified, such terms are not valid. This application The context and the attached claims In accordance with Broad sense to interpretation all It is. How many characteristics A few different or overlapping terms use hand mention that Many Something This is obvious to those skilled in the art. It is likely. In this specification, single Even if it is listed as a component , It can sometimes encompass things that consist of multiple characteristics, and in other contexts, it may be described as something consisting of multiple characteristics. . Or This specification In a certain place It shall include multiple features Note Listed Even if , In another place Single part It is sometimes listed as a material. .

[0012] Furthermore, in this specification, as described below, Several descriptive terms It can be used repeatedly. . "The 1st 」 "2 ” and "The 3rd" 」 The term is, parts to other parts and To distinguish compatible , individual The position of the part or This indicates importance It is not .

[0013] In this specification Use The word is, Special This is merely to illustrate a specific embodiment and does not limit the present disclosure. It is not This specification In singular Even if it is written in a specific form, unless it is otherwise clear from the context, Plural It also means . In this specification, "Preparation" ru " and / or " include The term " " refers to the described features, integers, steps, operation , composition elements and / or parts To show that it exists, One or more other Features, integers, steps, operation , composition element, Parts and Beauty / also teeth These groups existence In or added exclusion It is not something to do. . "Run" meaning " or " Appropriately " the term teeth, The following terms were listed phenomenon also The situation occurred You can come or not. thing Or teeth The parts listed after that term or composition elements exist It doesn't matter if it exists or not. This means The description is If that event occurs or if the part exists and, Those If it does not happen or This includes the case where it does not exist.

[0014] be compositionelement also The layers are different composition element or layer "above" " Engage " Connect " or " Combined " They are doing so case, the Another composition element or layer Even if it is located directly above , Directly engaged, connected to or bonded to that other component or layer That's fine, Or is involved composition element also There are layers ite That's good too. contrasting There composition The elements are different composition element or layer The phrase "directly on," "directly engaged with," "directly connected to," or "directly coupled to" means In that case, intervening composition element also The layers exist do not . composition To explain the relationships between elements Used other term (For example, "~during" "Directly between," "adjacent," and "directly adjacent" etc.) It is interpreted similarly. In this specification Use " Reach Beauty / also The term "ha" is One or more of the items listed Rayuru Includes all combinations .

[0015] Brazing process Gas turbine industry Wide It is widely used. A strong brazed joint is formed in the gap between the two objects to be joined. liquid Metal solder Capillary force by Move gap filling When It is formed. Furthermore, The robust brazed joint is As shown in Figure 1 vinegar so, u After solidification sea ​​urchin Mostly central eutectic phase or Not at all In state The fillet is formed and In effect porous having No. In addition, solid Brazing Department The brazed joint is The area is In effect exist do not have.

[0016] Referring to Figure 1, Brazing process In the gap G is, U B Joining should Two objects or parts 10 and Between 20 Gap dimensions Define GS. Book In a particular aspect of the embodiment, object 10 and 20 is turbomachinery parts This disclosure may include: of In other embodiments, object 10 and 20 is limited It is not something that should be done. However, within the micromixer combustion assembly Pipes and plate Like, Turbo-mechanical combustor parts It can include... Gap dimensions GS is Solid in the brazing process Desired sufficient reactor The void fills the volume of the gap. Each can be managed. Metal filler solder Regarding recommendation Recommendation Gap dimensions GS range This is so that a solid brazed joint that fills the gap volume can be obtained. It is often decided.

[0017] For example, recommended brazing for AMDRY 100 (BNi-5) Gap dimensions The range is 0.0005 inches to 0.004 inches (0.012 mm to 0.1 mm). Also, recommended brazing for AMDRY DF4B. Gap dimensions The range is 0.010 inches to 0.060 inches (0.254 mm to 1.5 mm). Brazing Gap dimensions range of control do too, reactor Fool The gap Outside If the appropriate volume of wax paste is not placed , porous or shortage of wax (LOB ;lack of braze ) is still observed There is ru. In that case , requires reprocessing It is sometimes said that .

[0018] In many cases, brazing Gap dimensions It is not uniform. This non-uniformity is due to the object Base material This can be due to tolerances. Therefore, LOB within brazing. and Porosity can be determined by visual inspection. by It can be observed. in the case of Also, reprocessing is required. It is sometimes said that .

[0019] Furthermore, brazing Gap dimensions Brazing for Recommended brazing Gap dimensions If it is greater than, a continuous central line eutectic phase There is a risk that it will be formed. There is this continuous central eutectic phase formation It is hard and brittle, Therefore Reduces the ductility of the brazed joint. It's possible . Hard fragile continuous The eutectic phase is micro crack or Causes macro cracks fear Yes , causing a leak This affects the lifecycle. Reduced ductility of brazed joints can lead to LOB (Low-End Joint) and cracking at the brazed joint. and Leakage fear There is, In such cases rework but Need To be There is.

[0020] for example, limited It is not something that should be done. However, within the micromixer combustion assembly Pipes and plate like High-temperature gas pathways within a gas turbine parts In conventional brazing, tube Brazing between the plate to reactor cormorant Foil can be used. In a micromixer combustion assembly, tube and between the plate Gap dimensions is, control But it's difficult There are cases where this is the case. Therefore , deaf foil of use death brazed joint This includes cases where the brazing gap dimension is greater than a certain threshold dimension. A continuous eutectic phase may be observed.

[0021] To avoid the formation of a continuous eutectic phase in the micromixer combustion assembly, as described above, gold Its main component is Brazing filler in the brazing process to It has been used. Micromixer combustion assembly Beginning, several Tsuka tip In gas turbine machinery, there are over several thousand metal filters. Joint A joint is needed. To be There is, large gold Use for and Increased costs invite .

[0022] So , this disclosure It will be materialized reactor Wood assembly finished product Disclose the following ru. Book reactor Wood assembly The finished product is It has improved flow capacity and narrows the brazing gap size. stomach From things , moderate and large Up to one brazing heat cycle Fill together of Used can . This disclosure will be realized reactor Wood assembly The finished product 、 small gap From large Up to the gap Improve the flow , limited fixed It is not something that should be done. However, turbo machinery parts of beginning Between objects solid Brazing of Possible vinegar Furthermore, This disclosure will be realized reactor Wood assembly The finished product , desire Unpleasant, hard, and brittle centerline in accordance with continuous tet Crystal phase too restraint However, this eutectic phase leads to a decrease in ductility. .

[0023] This disclosure will be realized reactor Wood assembly The finished product is As a range of approximate weight percentage values The following components : Chrome 15-17 Silicon 2.5~3.5 Cobalt 6.0~8.0 Aluminum 1.0~2.0 Tantalum 1.5~2.5 Boron 1.5~2.5 Yttrium 0.015~0.025 Nickel remainder, and Inevitable impurities including .

[0024] moreover, one manner So , The brazing material composition is roughly In terms of weight percentage, Chrome 16 Silicon 3 Cobalt 7 Aluminum 1.5 Tantalum 2 Boron 1.5 Yttrium 0.02 Nickel remainder, and Inevitable impurities That is the case.

[0025] Figure 2 shows an embodiment of the present disclosure. Therefore , When using reactor Wood assembly Product B of Placed inside do wedge shape gap Show G vinegar . This disclosure will be realized reactor Wood assembly Product B is ,hair Under the force of the capillary tube gap From opening 25 of G gap Terminal 26 via G to It can flow. The terminal section 26 is In gap G At least up to 0.060 inches (1.5 mm), in some cases It can be even longer. .Also, This disclosure will be realized reactor Wood assembly Product B is ,hair Under the force of a small tube, at least 0.020 inches (0.5 mm) gap up to height gap It can flow into G. Therefore, Wood assembly Product B is under capillary force Flowing ,limited It is not something that should be done. However, the micromixer is positioned at the plate opening. tube Including a combustion device gap of beginning inside turbomachinery A gap, a gap The volume can be filled appropriately.

[0026] When using, Wood assembly Product B is a joint or gap This applies to G. street In certain embodiments of the embodiment, gap G is turbomachinery parts The joint between them, for example, the limit It is not something that should be done. However, the micromixer is positioned at the plate opening. tube Including a combustion device gap It is also acceptable. material ha, ro Wood assembly Product B melts Wood assembly It is heated to form product B. Wood assembly Product B is under capillary force gap Flow to G in ,reactor The material has gaps Inflow into G do After that, melt filter Wood assembly Product B of , cold On the contrary, solidify hand , Turbomachinery parts They can be joined together.

[0027] This disclosure will be realized reactor Wood assembly Technical effects of the finished product As for, fixed It is not something that should be done. However, the elimination of undesirable continuous central eutectic phases, such In the eutectic phase Caused by Internal residual stress in brazed joints reduction , In the brazed gap Ductility The increase of leak or LOB of decline by One benefit is a reduction in the tendency to crack.

[0028] This specification and claims Approximate representation used teeth It is a modifier of quantity, and that quantity is related to Changes to the basic functions Within acceptable limits that do not result in It may fluctuate Represents the quantity for Applicable Therefore, "About", "Omitted" and "In effect" like term inModified values Not limited to those precise figures . In some cases , approximation expression teeth, the Measure the value ru Corresponds to the precision of the equipment To do. Book Specification and Claims In this context, the numerically limited ranges combine and / or exchange with each other. It is possible, The extent of this is not clearly evident from the context, etc. as long as Identify and include all sub-ranges that fall within that range. Identifying the scope Used in the value "approximately" Upper and lower limits Applied to the value, the Accuracy of the instrument used to measure values Unless it depends on the number listed value ± It can show 10% a ru.

[0029] The following claims Functional description in ( Means Plus Function or Step Plus Function Configuration identified by ) The corresponding structure, material of the element, act And equivalents are In the claims specifically description Other composition elements and union Set the function all structure, material also teeth Includes the act . description Examples Reach and explanation The purpose is comprehensive Unless it's something else , Disclosed Limited to form It's not something you should do. . Book Disclosure technical Scope and technical thought Deviating from Within the limits of not doing so, Many fixes Reach deform However, to those skilled in the art It should be obvious. The embodiments of this disclosure are, The principles and The disclosure is most suitable for describing practical applications and is appropriate for those skilled in the art to understand the various embodiments and specific applications. Various corrections This information has been selected and included to help you understand the topic. . [Explanation of Symbols]

[0030] 10 parts 20 parts 25 Opening 26 Termination section B Material,reactor U-gumi finished product G gap GS Gap dimensions

Claims

1. Approximate weight percentages are: Chromium 15-17 Silicon 2.5 to 3.5 Cobalt 6.0-8.0 Aluminum 1.0 to 2.0 Tantalum 1.5 to 2.5 Boron 1.5 to 2.5 Yttrium 0.015 to 0.025 Nickel balance, and Inevitable impurities A composition comprising:

2. The composition of claim 1 , wherein the composition is a brazing composition.

3. The composition of claim 2 , wherein the brazing composition is configured to braze a turbomachinery component.

4. The composition of claim 3 , wherein the turbomachinery component includes a micromixer tube within a plate opening.

5. The brazing composition comprises, in approximate weight percentages: Chromium 16 Silicon 3 Cobalt 7 Aluminum 1.5 Tantalum 2 Boron 1.5 Yttrium 0.02 Nickel balance, and Inevitable impurities The composition of claim 2 comprising:

6. Approximate weight percentages are: Chrome 15-17 Silicon 2.5 to 3.5 Cobalt 6.0-8.0 Aluminum 1.0 to 2.0 Tantalum 1.5 to 2.5 Boron 1.5 to 2.5 Yttrium 0.015 to 0.025 Nickel balance, and Inevitable impurities a composition comprising 2. A brazing material comprising:

7. The composition comprises, in approximate weight percentages: Chromium 16 Silicon 3 Cobalt 7 Aluminum 1.5 Tantalum 2 Boron 1.5 Yttrium 0.02 Nickel balance, and Inevitable impurities The brazing material of claim 6 comprising:

8. 7. A process for using the brazing material of claim 6, comprising: applying the brazing material to a joint between turbomachinery components (10); heating the braze material to form a molten braze material and flowing the braze material into the joint; allowing the molten brazing material to cool, solidify, and join the turbomachinery components (10); The process includes:

9. The process of claim 8, wherein the turbomachinery component (10) comprises a turbomachinery component (10) of a combustor assembly.

10. The process of claim 9, wherein the turbomachinery component (10) of a combustor assembly comprises a portion of a micromixer.

11. The process of claim 10 , wherein the portion of the micromixer includes a micromixer tube within a plate opening.

12. Approximate weight percentages are: Chromium 16 Silicon 3 Cobalt 7 Aluminum 1.5 Tantalum 2 Boron 1.5 Yttrium 0.02 Nickel balance, and Inevitable impurities 2. A brazing material comprising:

13. The brazing material of claim 12 , wherein the brazing composition is configured to braze a turbomachinery component.

14. The brazing material of claim 13 , wherein the turbomachinery component includes a micro-mixer tube within a plate opening.

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