CN105382366A - Brazing method for high-temperature alloy tapered thin-walled component provided with gas film cooling grooves - Google Patents
Brazing method for high-temperature alloy tapered thin-walled component provided with gas film cooling grooves Download PDFInfo
- Publication number
- CN105382366A CN105382366A CN201510909053.XA CN201510909053A CN105382366A CN 105382366 A CN105382366 A CN 105382366A CN 201510909053 A CN201510909053 A CN 201510909053A CN 105382366 A CN105382366 A CN 105382366A
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- China
- Prior art keywords
- taper sleeve
- conical sleeve
- inner conical
- external conical
- temperature
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
- B23K1/206—Cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
Abstract
The invention relates to a brazing method for a high-temperature alloy tapered thin-walled component provided with gas film cooling grooves. The brazing method comprises the following steps that (1) the surfaces to be connected of an inner taper sleeve and an outer taper sleeve are polished and ground, oxides and ablation surfaces are removed, and cleaning and drying are conducted; (2) amorphous foil-shaped HBNi68WCrSiB brazing filler metal with the thickness being 0.03 mm is fixed to the surface to be connected of the outer taper sleeve; (3) the inner taper sleeve and the outer taper sleeve are assembled together through an outer clamp and an inner clamp and pressed tightly through a press machine, so that the surfaces to be connected are combined tightly; (4) the inner taper sleeve and the outer taper sleeve enter a furnace integrally, and transient liquid phase transition brazing is conducted; (5) vacuum aging treatment is conducted at the temperature of 900+/- 5 DEG C for six hours; and (6) high-purity argon or nitrogen is introduced into the furnace, after the pressure inside the furnace is increased to 8*104 MPa, fast cooling is conducted till the temperature is below 65 DEG C, and the component is discharged out of the furnace. By means of the brazing method, the strength of the tapered component is guaranteed, and the situation that the performance of the tapered component is affected caused by blockage of the gas film cooling grooves is avoided.
Description
Technical field
The invention belongs to welding technology field, relate to a kind of method for welding, be specifically related to a kind of method for welding of the high temperature alloy tapered thin-walled component with gaseous film control groove.
Background technology
Inside and outside cylinder leading portion is tapered thin-walled component, is made up of GH4648 high-temperature alloy material, and they are the component parts in fanjet combustion chamber.As illustrated in fig. 1 and 2, tapered thin-walled component to process the long gaseous film control groove K of multiple four angular shape.With regard to current process technology, the forming processing technology such as available laser cut hole, galvano-cautery perforation, water under high pressure cut hole, smart type casting moulding, 3D printing.But all there is certain enforcement difficulty in these forming processing technology.
1, laser hole-cutting: the degree of depth due to gaseous film control groove K is 38mm, adopts laser cutting depth to be the deep hole of 50mm, large-scale laser possible in theory, but due to laser beam decay, aperture can produce convergence and four angle accurate shape are difficult to ensure.
2, galvano-cautery perforation: adopt galvano-cautery perforation, to make circular arc square hole precision be difficult to ensure due to wear to electrodes, and is difficult to ensure frustoconical bevel angle because electrode that 0.5mm is wide wears deep hole, and bore area ablation layer cannot be removed.
3, water under high pressure cut hole: the loose property of holding back of water under high pressure determines it and cannot be cut into the wedge angle nibs meeting dimensional requirement.
4, smart type casting moulding: the intensity, thermal stress performance etc. of precision castings all cannot meet the performance requirement of tapered thin-walled component.
5,3D printing technique: current 3D printing technique is feasible in theory, but this conical thin-wall part is made up of GH4648 high temperature alloy, due to the particularity of material and design of part, requirement on machining accuracy is high, after 3D printing shaping, endoporus roughness requirements cannot ensure, and manufacturing cost is high, the process-cycle is long.
In view of above-mentioned forming processing technology cannot produce the tapered thin-walled component met the demands, present inventor considers the mode adopting somatotype to manufacture.That is, first produce inner conical drogue 1 as shown in Figures 3 and 4, the outer surface of described inner conical drogue 1 processes the open slot 2 with the consistent size of described gaseous film control groove K.Owing to being processing open slot 2, so it adopts prior art to process than being easier to.Then external conical sleeve 3 is as shown in Figure 5 produced.Described inner conical drogue 1 and external conical sleeve 3 are welded together.
But existing welding method is difficult to the intensity ensureing tapered thin-walled component, and after welding, solder easily blocks gaseous film control groove, thus affects the performance of tapered thin-walled component.
In view of the above-mentioned technological deficiency of prior art, in the urgent need to developing a kind of novel welding method.
Summary of the invention
The object of the invention is to overcome the shortcoming existed in prior art, a kind of method for welding of the high temperature alloy tapered thin-walled component with gaseous film control groove is provided, namely this method for welding ensure that the intensity of tapered thin-walled component, can not block gaseous film control groove again and affect the performance of tapered thin-walled component.
To achieve these goals, the invention provides following technical scheme: a kind of method for welding of the high temperature alloy tapered thin-walled component with gaseous film control groove, is characterized in that, comprise the following steps:
(1), throw grind inner conical drogue and external conical sleeve treat junction, get rid of oxide and ablated surface, and cleaning and drying;
(2), described external conical sleeve treat junction is fixed the thick amorphous state foil-like HBNi68WCrSiB solder of 0.03mm;
(3), with outer fixture and interior fixture described inner conical drogue and external conical sleeve are assembled together, and compress with forcing press, what make described inner conical drogue and external conical sleeve treats that junction is combined closely;
(4), make the described outer fixture that is assembled together and interior fixture and described inner conical drogue and external conical sleeve entirety enter stove to carry out Transient liquid phase transition soldering, wherein, in Transient liquid phase transition brazing process, in stove, vacuum is not less than 4 × 10
-2pa, temperature is 1140 ± 10 DEG C, and temperature retention time is 60min;
(5), to the described inner conical drogue after Transient liquid phase transition soldering and external conical sleeve carry out vacuum aging process, wherein, temperature during vacuum aging process is 900 DEG C ± 5 DEG C, and the retention time is 6 hours;
(6) after vacuum aging process toward filling high-purity argon gas or nitrogen in stove, make furnace pressure rise to 8 × 10
4after Pa, start fan stirring gas, be cooled fast to less than 65 DEG C to come out of the stove.
Compared with existing welding method, the method for welding of the high temperature alloy tapered thin-walled component of band gaseous film control groove of the present invention has following Advantageous Effects:
1, the solder adopted is nickel-based solder, and it is high temperature resistant solder, has best high-temperature behavior, also stress cracking can not occur during soldering, and meanwhile, the W that in this solder, W content reaches in 10.0%-11.0W% solder can strengthen solder, improves the elevated temperature strength of solder; Further, not only this solder can diffuse in part mother metal in brazing process, ensure that the intensity of part but also can not block air film hole and affect part performance.
2, the process of soldering and the solution treatment process of part material consistent, in the process of soldering, also achieve the solution treatment of part, improve the performance of part.
Accompanying drawing explanation
Fig. 1 is the front view of the high temperature alloy tapered thin-walled component of existing band gaseous film control groove.
Fig. 2 is the A-A cutaway view Amplified image of Fig. 1.
Fig. 3 is the front view of inner conical drogue.
Fig. 4 is the A-A cutaway view Amplified image of Fig. 3.
Fig. 5 is the front view of external conical sleeve.
Fig. 6 be weld after inner conical drogue assembles with external conical sleeve before schematic diagram.
Fig. 7 is the assembling schematic diagram that inner conical drogue coordinates with fixture with external conical sleeve.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described, and the content of embodiment is not as the restriction to protection scope of the present invention.
The present invention relates to the method for welding of the high temperature alloy tapered thin-walled component of the band gaseous film control groove that split manufactures, forming the welding between the inner conical drogue of high temperature alloy tapered thin-walled component and external conical sleeve for realizing.
In the present invention, be first throw grind inner conical drogue 1 and external conical sleeve 3 treat junction, get rid of oxide and ablated surface, and ensure that the surface roughness of inner conical drogue 1 and external conical sleeve 3 meets the requirement of Transient liquid phase transition soldering.Afterwards, the described inner conical drogue 1 after grinding throwing and external conical sleeve 3 clean, and get rid of and throw levigation end etc., and dry.
Then, as shown in Figure 6, described external conical sleeve 3 treat junction is fixed the thick amorphous state foil-like HBNi68WCrSiB solder 4 of 0.03mm.Described HBNi68WCrSiB solder is high temperature resistant solder, has best high-temperature behavior, and also stress cracking can not occur during soldering.Meanwhile, in this solder, the content of tungsten (W) reaches 10.0%-11.0W%, and the W in solder can strengthen solder, improves the elevated temperature strength of solder, thus ensures weld strength and quality.
Then, as shown in Figure 7, described inner conical drogue 1 and external conical sleeve 3 are assembled together with outer fixture O and interior fixture I, and compress with forcing press, what make described inner conical drogue 1 and external conical sleeve 3 treats that junction is combined closely, thus ensures welding quality.In the figure 7, the high temperature alloy tapered thin-walled component of A representative band gaseous film control groove, it is made up of described inner conical drogue 1 and external conical sleeve 3.
Afterwards, make the described outer fixture O that is assembled together and interior fixture I and described inner conical drogue 1 and external conical sleeve 3 entirety enter stove and carry out Transient liquid phase transition soldering.Wherein, in Transient liquid phase transition brazing process, in stove, vacuum is not less than 4 × 10
-2pa, temperature is 1140 ± 10 DEG C, and temperature retention time is 60min.Because the material of described inner conical drogue 1 and external conical sleeve 3 is GH4648, its fusion temperature is 1336 DEG C-1353 DEG C, and meanwhile, its solid solution temperature is 1140 DEG C.In the present invention, by making the temperature of Transient liquid phase transition soldering be 1140 ± 10 DEG C, not only can realize soldering, and the solution treatment of described inner conical drogue 1 and external conical sleeve 3 can be realized, that is, heat treatment.Therefore, in the present invention, the selection of Welding of Transient liquid phase transition soldering completes in the solution treatment process of part material, and it is a compatible technology.Namely complete welding, also solution treatment has been carried out to part material, killed two birds with one stone.In the present invention, described HBNi68WCrSiB solder can diffuse in the mother metal of described inner conical drogue 1 and external conical sleeve 3 in Transient liquid phase transition brazing process, namely ensure that the intensity of described inner conical drogue 1 and external conical sleeve 3, the performance that air film hole affects tapered thin-walled component can not be blocked again.
Afterwards, vacuum aging process is carried out to the described inner conical drogue 1 after Transient liquid phase transition soldering and external conical sleeve 3.Wherein, temperature during vacuum aging process is 900 DEG C ± 5 DEG C, and the retention time is 6 hours.By vacuum aging process, the strength of materials of the high temperature alloy tapered thin-walled component A of finished product can be improved further.
Finally, toward filling high-purity argon gas or nitrogen in stove after vacuum aging process, furnace pressure is made to rise to 8 × 10
4after Pa, start fan stirring gas, be cooled fast to less than 65 DEG C to come out of the stove, the high temperature alloy tapered thin-walled component of band gaseous film control groove can be obtained.
Certainly, be eliminate brazing filler metal distortion, need through shaping, then precision-machined parts length and each portion size such as external diameter, gaseous film control groove are to ensure the final size of part.
The above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here cannot give exhaustive to all embodiments.Every belong to technical scheme of the present invention the apparent change of extending out or variation be still in the row of protection scope of the present invention.
Claims (1)
1. a method for welding for the high temperature alloy tapered thin-walled component with gaseous film control groove, is characterized in that, comprise the following steps:
(1), throw grind inner conical drogue (1) and external conical sleeve (3) treat junction, get rid of oxide and ablated surface, and cleaning and oven dry;
(2), described external conical sleeve (3) treat junction is fixed the thick amorphous state foil-like HBNi68WCrSiB solder (4) of 0.03mm;
(3), with outer fixture (O) and interior fixture (I), described inner conical drogue (1) and external conical sleeve (3) are assembled together, and compress with forcing press, what make described inner conical drogue (1) and external conical sleeve (3) treats that junction is combined closely;
(4), make the described outer fixture (O) that is assembled together and interior fixture (I) and described inner conical drogue (1) and external conical sleeve (3) entirety enter stove and carry out Transient liquid phase transition soldering, wherein, in Transient liquid phase transition brazing process, in stove, vacuum is not less than 4 × 10
-2pa, temperature is 1140 ± 10 DEG C, and temperature retention time is 60min;
(5), to the described inner conical drogue (1) after Transient liquid phase transition soldering and external conical sleeve (3) carry out vacuum aging process, wherein, temperature during vacuum aging process is 900 DEG C ± 5 DEG C, and the retention time is 6 hours;
(6) after vacuum aging process toward filling high-purity argon gas or nitrogen in stove, make furnace pressure rise to 8 × 10
4after Pa, start fan stirring gas, be cooled fast to less than 65 DEG C to come out of the stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510909053.XA CN105382366A (en) | 2015-12-10 | 2015-12-10 | Brazing method for high-temperature alloy tapered thin-walled component provided with gas film cooling grooves |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510909053.XA CN105382366A (en) | 2015-12-10 | 2015-12-10 | Brazing method for high-temperature alloy tapered thin-walled component provided with gas film cooling grooves |
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| CN105382366A true CN105382366A (en) | 2016-03-09 |
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| CN201510909053.XA Pending CN105382366A (en) | 2015-12-10 | 2015-12-10 | Brazing method for high-temperature alloy tapered thin-walled component provided with gas film cooling grooves |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817846A (en) * | 2016-06-12 | 2016-08-03 | 河北首创节能设备有限公司 | Titanium cylinder machining process |
| CN107201431A (en) * | 2016-03-18 | 2017-09-26 | 贵州航天精工制造有限公司 | A kind of aging treatment method of raising GH2132 bolt high temperature endurance performances |
| CN108188520A (en) * | 2017-12-01 | 2018-06-22 | 浙江工业大学 | A kind of method using Pd-Si composite soldering soldering connection DD98M single crystal super alloys |
| CN109848659A (en) * | 2019-03-08 | 2019-06-07 | 任耀文 | A kind of axisymmetric nozzle integral welding method |
| CN110116296A (en) * | 2019-03-28 | 2019-08-13 | 任耀文 | A kind of production method of high temperature alloy thin-walled cooling cone component |
| CN112338308A (en) * | 2020-10-23 | 2021-02-09 | 西安远航真空钎焊技术有限公司 | Vacuum brazing method based on brazing filler metal preset melting solidification |
| CN113601115A (en) * | 2021-08-10 | 2021-11-05 | 西安远航真空钎焊技术有限公司 | Preparation method of honeycomb trapezoidal corrugated heat exchange plate component |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107201431A (en) * | 2016-03-18 | 2017-09-26 | 贵州航天精工制造有限公司 | A kind of aging treatment method of raising GH2132 bolt high temperature endurance performances |
| CN105817846A (en) * | 2016-06-12 | 2016-08-03 | 河北首创节能设备有限公司 | Titanium cylinder machining process |
| CN105817846B (en) * | 2016-06-12 | 2018-01-12 | 河北首创节能设备有限公司 | A kind of titanium cylinder processing technology |
| CN108188520A (en) * | 2017-12-01 | 2018-06-22 | 浙江工业大学 | A kind of method using Pd-Si composite soldering soldering connection DD98M single crystal super alloys |
| CN109848659A (en) * | 2019-03-08 | 2019-06-07 | 任耀文 | A kind of axisymmetric nozzle integral welding method |
| CN110116296A (en) * | 2019-03-28 | 2019-08-13 | 任耀文 | A kind of production method of high temperature alloy thin-walled cooling cone component |
| CN112338308A (en) * | 2020-10-23 | 2021-02-09 | 西安远航真空钎焊技术有限公司 | Vacuum brazing method based on brazing filler metal preset melting solidification |
| CN113601115A (en) * | 2021-08-10 | 2021-11-05 | 西安远航真空钎焊技术有限公司 | Preparation method of honeycomb trapezoidal corrugated heat exchange plate component |
| CN113601115B (en) * | 2021-08-10 | 2022-05-31 | 西安远航真空钎焊技术有限公司 | Preparation method of honeycomb trapezoidal corrugated heat exchange plate component |
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Application publication date: 20160309 |
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