CN105479115B - The forming method of turbine blade soldering abnormity stellite alloy film silver soldering piece - Google Patents
The forming method of turbine blade soldering abnormity stellite alloy film silver soldering piece Download PDFInfo
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- CN105479115B CN105479115B CN201511021800.2A CN201511021800A CN105479115B CN 105479115 B CN105479115 B CN 105479115B CN 201511021800 A CN201511021800 A CN 201511021800A CN 105479115 B CN105479115 B CN 105479115B
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- silver soldering
- soldering piece
- alloy
- piece
- silver
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention discloses a kind of forming method of turbine blade soldering abnormity stellite alloy film silver soldering piece, it comprises the following steps：The processing of mould：Alloy groove shape is gone out by square steel Milling Machining and is used as lower mould, the 3D section of wire cutting stellite alloy film is as upper mould；It is preforming：Silver soldering piece is subjected to blanking on request, and silver soldering piece is positioned on alloy groove, is compressed silver soldering piece using U-shaped pincers；Shaping：Lower mould is heated, 100 500 DEG C of heating-up temperature；The 3D section of alloy sheet is set to be bonded under external force with alloy groove；Cooling：Room temperature is cooled in atmosphere；Polishing：After silver soldering piece is polished into metallic luster, shaping is completed.Above-mentioned forming method efficiently solves thin silver soldering piece, and molding resilience rate is big at room temperature, the silver soldering piece caused by the dimensional uniformity difference after offhand and alloy groove, alloy sheet are bonded the problems such as bad, the requirement of filling silver soldering piece when preferably meeting soldering 3D alloy sheets.
Description
Technical field
The invention belongs to turbine blade brazing alloy chip technology, more particularly to a kind of turbine blade soldering abnormity department is too
The forming method of vertical alloy sheet silver soldering piece.
Background technology
, can be with a piece of hard stellite alloy film with good corrosion resistance of the steam admission side soldering of turbine blade
Effectively slow down blade caused water erosion effect in the process of running.With the development of the anti-water erosion technology of turbine blade, in order to
The liquid impact erosion resistance of blade is improved, the face shaping of this hard metal tip is according to the needs in anti-water erosion region, its configuration design
Increasingly tend to be complicated.
Alloy sheet and blade body are usually attached by stellite alloy film using the method for soldering.Soldering Si Taili is closed
The process of gold plaque is：Blade body, alloy sheet and silver soldering piece are heated to silver soldering piece fusing, the silver soldering liquid filling of free-flowing
Among gap between alloy sheet and body alloy groove, after cooling, the connection of alloy sheet and blade is realized.Alloy sheet closes with blade
Fitting gap between golden groove directly affects the flowing and filling of silver solder, gap is too small easily cause silver soldering liquid stream move it is bad and
Cause to fill uneven；Gap is excessive, causes silver soldering liquid stream to lose and causes local silver solder deficiency and form defect.Silver soldering piece
It is a kind of Ag-Cu alloys, its thickness is typically only 0.3mm, and has good toughness.Therefore bending silver soldering piece when, because its compared with
Big deformation resilience rate causes that the shaping difficulty of silver soldering piece is big, compact dimensions low precision.The precision of silver soldering piece compact dimensions, determine
The size in the gap between alloy sheet and alloy groove, to the forming gap after heating between alloy sheet and alloy groove or even soldering
Weldquality has important influence.In the soldering of irregular alloy sheet, this required precision embodies particularly evident.
The content of the invention
It is an object of the invention to provide a kind of shaping of turbine blade soldering abnormity stellite alloy film silver soldering piece
Method, to solve thin silver soldering piece in the prior art, dimensional uniformity difference of the molding resilience rate greatly, after offhand is led at room temperature
The silver soldering piece of cause and alloy groove, alloy sheet are bonded the problems such as bad.
To use following technical scheme up to this purpose, the present invention：
A kind of forming method of turbine blade soldering abnormity stellite alloy film silver soldering piece, it comprises the following steps：
The processing of step 1) mould：Alloy groove shape is gone out by square steel Milling Machining and is used as lower mould, the conjunction of the lower mould
The shape of golden groove and the alloy groove shape of blade to be brazed should be consistent；The 3D section of wire cutting stellite alloy film is as upper
Mould,
Step 2) is preforming：Silver soldering piece is subjected to blanking on request, blank size determines according to the usage amount of solder；By hand
Silver soldering piece is bent similar to alloy groove profile, and silver soldering piece is positioned on alloy groove, using U-typed clamp by silver soldering piece pressure
Tightly,
Step 3) is molded：Lower mould is heated, 100-500 DEG C of heating-up temperature；Upper mould is gently tapped using external force, makes conjunction
The 3D section of gold plaque is bonded with alloy groove under external force,
Step 4) cools down：Room temperature is cooled in atmosphere,
Step 5) is polished：Silver soldering piece after cooling is polished, scale removal, silver soldering piece is polished into metallic luster
Afterwards, shaping is completed.
Especially, in the step 1) during wire cutting stellite alloy film, specification shape is cut off, is only retained irregular
The 3D section.
Especially, the silver soldering piece area in the step 2) after blanking should be greater than the face of flute profile corresponding to alloy sheet the 3D section
Product.
Especially, lower mould is uniformly heated using oxyacetylene torch in the step 3), and uses temperature measurer
Monitoring mold temperature in real time.
Especially, polished in the step 5) by any silver soldering piece by after cooling of scouring pad or sand paper.
Beneficial effects of the present invention are that the turbine blade soldering abnormity stellite alloy film is used compared with prior art
The forming method of silver soldering piece efficiently solves thin silver soldering piece, and the dimensional uniformity of molding resilience rate greatly, after offhand is poor at room temperature
Caused silver soldering piece and alloy groove, alloy sheet are bonded the problems such as bad, are filled when preferably meeting soldering 3D alloy sheets
The requirement of silver soldering piece.
Brief description of the drawings
Fig. 1 is the turbine blade soldering abnormity stellite alloy film silver soldering piece that the specific embodiment of the invention 1 provides
Forming method mould structural representation；
Fig. 2 is the turbine blade soldering abnormity stellite alloy film silver soldering piece that the specific embodiment of the invention 1 provides
Forming method pre-formed states figure；
Fig. 3 is the turbine blade soldering abnormity stellite alloy film silver soldering piece that the specific embodiment of the invention 1 provides
Forming method another pre-formed states figure；
Fig. 4 is the turbine blade soldering abnormity stellite alloy film silver soldering piece that the specific embodiment of the invention 1 provides
Forming method completed state figure.
In figure：
1st, lower mould；10th, alloy groove；2nd, upper mould；3rd, silver soldering piece；4th, U-typed clamp.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
Refer to shown in Fig. 1 to Fig. 4, in the present embodiment, a kind of turbine blade soldering abnormity stellite alloy film silver
The forming method of weld tabs, it comprises the following steps：
The processing of mould：By the way of machining, square steel is processed into simulation blade, simulation blade is derived from leaf
A part for piece is as lower mould 1, and the part is the part that blade contains alloy groove 10, it is desirable to which the alloy groove 10 for simulating blade should
It is consistent with the alloy groove of real blade institute band.Select a piece of complete stellite alloy film (3D alloy sheets), using wire cutting or
Other machining process, the 3D section of the 3D alloy sheets is cut, cutting position is located at the boundary of alloy sheet 3D curvature portions
Near, the upper mould 2 using the 3D curvature portions cut as mould.
The blanking of silver soldering piece：According to the size in stellite alloy film the 3D section region, the blank size of silver soldering piece 3 is determined,
Silver solder specification is generally that 0.3mm thickness X16.5mm is wide, and the silver solder area after blanking should be greater than groove corresponding to alloy sheet the 3D section
The area of shape.
Cold conditions is preforming：In order to facilitate fixation, it should use by hand or silver soldering piece 3 is carried out prebuckling extremely by other mechanical means
With alloy groove similar in profile, and silver soldering piece 3 is fixed between alloy groove 10 and upper mould 2, and fixed using U-typed clamp 4.
The heating of mould：The lower mould 1 made using oxyacetylene torch to simulation blade is heated, while using non-contact
Formula infrared radiation thermometer detects the heating-up temperature of mould, and mould is heated into 100-500 DEG C, the temperature when silver soldering piece 3 starts softening
Spend to be optimal.
Shaping：After lower mould 1 is heated to 100-500 DEG C of forming temperature, the fore shaft position (arrow in such as Fig. 4 of upper mould 2 is gently tapped
Head A meanings position), the position of mould 2 in adjustment, the position that upper mould 2 is pushed into fit with alloy groove 10.Upper mould 2 and alloy groove 10
After fitting, U-typed clamp 4 is further fastened, silver soldering piece 3 is in the state by upper mould 2 and the firm grip of alloy groove 10.
Cooling：Room temperature is naturally cooled in air.
Polishing：Gently the surface of silver soldering piece 3 is polished using scouring pad or sand paper, untill there is metallic luster.
Above example is to elaborate the general principle and characteristic of the present invention, and the present invention is not limited by above-mentioned example,
Without departing from the spirit and scope, the present invention also has various change and change, and these changes and modifications are both fallen within
In scope of the claimed invention.The scope of the present invention is defined by the appended claims and its equivalents.
Claims (5)
1. a kind of forming method of turbine blade soldering abnormity stellite alloy film silver soldering piece, it is characterised in that it includes
Following steps：
The processing of step 1) mould：Alloy groove shape is gone out by square steel Milling Machining and is used as lower mould, the alloy groove of the lower mould
Shape and the alloy groove shape of blade to be brazed should be consistent；The 3D section of wire cutting stellite alloy film as upper mould,
Step 2) is preforming：Silver soldering piece is subjected to blanking on request, blank size determines according to the usage amount of solder；By hand by silver
Weld tabs bends similar to alloy groove profile, and silver soldering piece is positioned on alloy groove, compressed silver soldering piece using U-typed clamp,
Step 3) is molded：Lower mould is heated, 100-500 DEG C of heating-up temperature；Upper mould is gently tapped using external force, makes alloy sheet
The 3D section be bonded under external force with alloy groove,
Step 4) cools down：Room temperature is cooled in atmosphere,
Step 5) is polished：Silver soldering piece after cooling is polished, scale removal, after silver soldering piece is polished into metallic luster,
Shaping is completed.
2. the forming method of turbine blade soldering abnormity stellite alloy film silver soldering piece according to claim 1, its
It is characterised by, in the step 1) during wire cutting stellite alloy film, cuts off specification shape, only retain irregular 3D portions
Point.
3. the forming method of turbine blade soldering abnormity stellite alloy film silver soldering piece according to claim 1, its
It is characterised by, the silver soldering piece area in the step 2) after blanking should be greater than the area of flute profile corresponding to alloy sheet the 3D section.
4. the forming method of turbine blade soldering abnormity stellite alloy film silver soldering piece according to claim 1, its
It is characterised by, lower mould is uniformly heated using oxyacetylene torch in the step 3), and is supervised in real time using temperature measurer
Survey mold temperature.
5. the forming method of turbine blade soldering abnormity stellite alloy film silver soldering piece according to claim 1, its
It is characterised by, is polished in the step 5) by any silver soldering piece by after cooling of scouring pad or sand paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511021800.2A CN105479115B (en) | 2015-12-30 | 2015-12-30 | The forming method of turbine blade soldering abnormity stellite alloy film silver soldering piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511021800.2A CN105479115B (en) | 2015-12-30 | 2015-12-30 | The forming method of turbine blade soldering abnormity stellite alloy film silver soldering piece |
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| CN105479115A CN105479115A (en) | 2016-04-13 |
| CN105479115B true CN105479115B (en) | 2018-01-02 |
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| CN108857147A (en) * | 2018-06-29 | 2018-11-23 | 陕西图灵电子科技有限公司 | A kind of tin bismuth preformed solder production technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH02147192A (en) * | 1988-11-25 | 1990-06-06 | Tanaka Kikinzoku Kogyo Kk | Manufacture of annular brazing filler metal |
| JP4339723B2 (en) * | 2004-03-04 | 2009-10-07 | 株式会社ルネサステクノロジ | Semiconductor device and manufacturing method thereof, electronic device and mounting structure |
| JP2006320931A (en) * | 2005-05-18 | 2006-11-30 | Nippon Light Metal Co Ltd | Method of soldering, and soldered product |
| CN103008465B (en) * | 2012-12-11 | 2014-11-05 | 天津市津荣天宇精密机械有限公司 | In-die ultrathin soldering aid sheet rivet punching structure |
| CN103406626B (en) * | 2013-07-26 | 2016-03-02 | 郑州大学 | Curve surface of workpiece position weldering repair renovation method |
| CN103659201B (en) * | 2013-12-15 | 2015-12-30 | 无锡透平叶片有限公司 | A kind of processing technology adopting the turbine blade of the anti-water erosion of laser melting coating |
| CN203726005U (en) * | 2013-12-23 | 2014-07-23 | 江阴亿欣新材料科技有限公司 | Solder strip forming device |
| CN103994013A (en) * | 2014-04-24 | 2014-08-20 | 云南电力试验研究院（集团）有限公司电力研究院 | Abrasion-proof method of water turbine fixed guide vane by welding on hard alloy |
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