CN106392372B - A kind of preparation method of engine components sealing silver-based multicomponent alloy narrowband - Google Patents
A kind of preparation method of engine components sealing silver-based multicomponent alloy narrowband Download PDFInfo
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- CN106392372B CN106392372B CN201610968178.4A CN201610968178A CN106392372B CN 106392372 B CN106392372 B CN 106392372B CN 201610968178 A CN201610968178 A CN 201610968178A CN 106392372 B CN106392372 B CN 106392372B
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- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/302—Cu as the principal constituent
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
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Abstract
The present invention provides a kind of engine components sealing preparation methods of silver-based multicomponent alloy narrowband, include the following steps：One, each raw material is weighed by mass percentage；Two, raw material is refined, rectangle ingot blank is obtained after casting；Three, it cuts；Four, groove rolling is carried out, process wire is obtained；Five, process wire is made annealing treatment；Six, wire drawing process is carried out, silk material is obtained；Seven, narrowband rolling is carried out to silk material, obtains engine components sealing silver-based multicomponent alloy narrowband.While there is good fluidity, wellability using silver-based multicomponent alloy narrowband prepared by the present invention, there is high brazing temperature, during the sealed with brazing of engine components, there is high reliability and stability.
Description
Technical field
The invention belongs to technical field of soldering materials, and in particular to a kind of engine components sealing is narrow with silver-based multicomponent alloy
The preparation method of band.
Background technology
In recent years, with space flight, the development of aeronautical technology, engine components sealing superalloy solder it is high temperatures
It can require more and more high.Traditional silver-based two-spot, three former alloys are difficult to meet the requirements, the preparation method of polynary high temperature alloy by
The concern of various countries.
Silver, copper, zinc, manganese alloy have good mobility, wellability and applied to engine components level-one be brazed, it is preceding
The Soviet Union and country of Europe, the United States are early in 80~nineties of last century just to carry out relevant research work.It is domestic due to the barrier of technology
Technology of preparing cannot achieve for many years product quantization production, restrict China's space flight, aeronautical technology advances.
Invention content
Technical problem to be solved by the present invention lies in view of the above shortcomings of the prior art, provide a kind of engine components
The preparation method of sealing silver-based multicomponent alloy narrowband.Using this method prepare the polynary high temperature alloy narrowband of silver-based of the present invention with
Traditional process, which is compared, has following advantage：First, while with good fluidity, wellability, there is high soldering
Temperature；Second, the alloy narrowband in the brazing process of engine components, has high reliability and stability.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of engine components sealing silver-based is more
The preparation method of first alloy narrowband, which is characterized in that this approach includes the following steps：
Step 1: weighing various raw materials according to following mass percent：Cu 46%~50%, Zn 5%~8%, Mn
7%~9%, surplus Ag；
Step 2: by the various raw materials weighed in step 1 vacuum degree be 1 × 10-3MPa~1 × 10-2The item of MPa
It is refined under part, rectangle ingot blank is obtained after casting；
Step 3: it is longitudinally cutting to the progress of rectangle ingot blank described in step 2, obtain polylith strip piece；
Step 4: four long sides to strip piece described in step 3 carry out chamfer machining respectively, then by chamfer machining
Strip piece afterwards is sent into pass milling train and carries out groove rolling, and it is ellipse to obtain cross sectional shape, and equivalent diameter is 6mm~10mm
Process wire；
Step 5: process wire described in step 4 is protected in argon gas atmosphere, the item that temperature is 640 DEG C~760 DEG C
25min~55min is kept the temperature under part to be made annealing treatment；
Step 6: carrying out multi-pass wire drawing to the process wire after being made annealing treatment in step 5, obtaining cross sectional shape is
Circle, diameter of section are the silk material of 1mm~2mm；
Step 7: carrying out the rolling of 1~2 passage narrowband to silk material described in step 6, engine components sealing silver is obtained
Based multicomponent alloy narrowband.
A kind of preparation method of above-mentioned engine components sealing silver-based multicomponent alloy narrowband, which is characterized in that step
The temperature refined described in two is 750 DEG C~1000 DEG C.
A kind of preparation method of above-mentioned engine components sealing silver-based multicomponent alloy narrowband, which is characterized in that step
The time refined described in two is 2min~5min.
A kind of preparation method of above-mentioned engine components sealing silver-based multicomponent alloy narrowband, which is characterized in that step
The angle of chamfer machining described in four is 45 °.
A kind of preparation method of above-mentioned engine components sealing silver-based multicomponent alloy narrowband, which is characterized in that step
Groove rolling described in four is that commutation rolls, and the pass reduction of the groove rolling is 10%~15%, groove rolling process
Middle to carry out multiple first intermediate annealing, the general working rate of adjacent first intermediate annealing twice is 40%~70%；In described first
Between the temperature annealed be 700 DEG C~780 DEG C, soaking time is 30min~60min.
A kind of preparation method of above-mentioned engine components sealing silver-based multicomponent alloy narrowband, which is characterized in that step
The pass reduction of wire drawing described in six is 8%~12%, carries out multiple second intermediate annealing in drawing process, adjacent twice the
The general working rate of two intermediate annealings is 30%~60%；The temperature of second intermediate annealing is 640 DEG C~710 DEG C, when heat preservation
Between be 25min~45min.
A kind of preparation method of above-mentioned engine components sealing silver-based multicomponent alloy narrowband, which is characterized in that step
The general working rate of the rolling of narrowband described in seven is 30%~70%.
Compared with the prior art, the present invention has the following advantages：
1, the present invention uses the compound technology of preparing of refining, cutting and relevant heat treatment and cold working；The present invention distinguishes
In the line-frequency induction refining platoon cast used, the traditional handicraft of hammer cogging in the past；The ingredient of alloy is set to be controlled well
The problems such as making, efficiently solving forge crack, impurity, meanwhile, using commutation groove rolling method and breach aximal deformation value narrowband
The technical bottleneck of rolling；
2, the preparation method of the polynary high temperature alloy narrowband of silver-based of the present invention has following excellent compared with traditional process
Gesture：First, while with good fluidity, wellability, there is high brazing temperature；Second, the alloy narrowband is in engine
In the brazing process of component, there is high reliability and stability；
3, the preparation method of the polynary high temperature alloy narrowband of silver-based of the present invention is different from the non-line-frequency induction refining used in the past
The traditional handicraft of platoon casting machine hammer cogging, can make the ingredient of alloy be well controlled, efficiently solve forge crack,
The problems such as impurity, breaches the technical bottleneck of aximal deformation value narrowband rolling, is provided for China's domestic material and mass production
Good approach.
With reference to embodiment, invention is further described in detail.
Specific implementation mode
Certain client is intended to purchase a kind of silver-copper-zinc-manganese alloy solder, and level-one of the purpose for engine components is brazed.For
The index request of product is：725 DEG C of solidus, 810 DEG C of liquidus curve, 810 DEG C~830 DEG C of brazing temperature.Applicant is as manufacturing
Unit, original adoption line-frequency induction refine the preparation of the casting technique progress solder of townhouse cast.Put into 10 charge compositions qualification
Be only 6 stoves, after groove rolling and cold drawing pull into silk material, there is stain (oxide is mingled with) in silk material surface, using multi-pass
There is camber, snakelike phenomenon curved, dimensional tolerance range is big, after delivery, Subscriber Unit in the narrowband milling method of small deformation amount
It is proposed quality objection.Later, applicant was aided with hammer cogging method, and was put into 10 stoves using vacuum induction refining, billet cast
Material, ingredient is met the requirements, but malleability is poor, phenomenon of rupture occurs.After analysing in depth and repeatedly improving, applicant finally uses
Vacuum induction refines, wide plate cast cutting, groove rolling, is aided with heat treatment and implements to roll with the narrowband of aximal deformation value compound
Preparation process is tested, and experiment process and test result are shown in embodiment 1 to 3.
Embodiment 1
The preparation method of the present embodiment engine components sealing silver-based multicomponent alloy narrowband includes the following steps：
Step 1: weighing various raw materials according to following mass percent：Cu 50%, Zn 5%, Mn 7%, surplus Ag；
In actual mechanical process, each raw material chooses supplying in the form of elemental metals or/and intermediate alloy；Preferably processing procedure is：
First by raw material A g, Cu, Zn and Mn, by the selection of alloy nominal composition, (wherein elemental metals Ag includes Ag in the form of elemental metals
Foil), with the 10 kilograms of amount sortings of every stove, then whole elemental metals Zn and partial elemental metals Cu are made in Cu-38Zn
Between alloy, whole elemental metals Mn is coated with Ag foils and with due regard to scaling loss amount；
Step 2: by the various raw materials weighed in step 1 vacuum degree be 1 × 10-3MPa, the item that temperature is 800 DEG C
3min is refined under part, and rectangle ingot blank is obtained after casting；
In actual mechanical process, preferred processing procedure is：Raw material A g, Cu and Zn are put into magnesia crucible, then
It is placed in vacuum induction refining furnace, banking vacuumizes, when vacuum degree reaches 1 × 10-3Heat temperature raising when MPa, after being heated to 800 DEG C
After constant temperature makes Ag, Cu and Zn melt, Mn is added from hopper, each element is made to carry out alloying, cooled down after refining 3min, poured into a mould
It is cooling for use in 200 × 300mm rectangle molds；It materialses in the head of rectangle ingot blank, tail portion, ingredient is carried out with chemical method
Analysis, result are：Ag 38%, Cu 48%, Zn 6%, Mn 8%.It is mono- that the selection of the refinery practice preferably solves Zn, Mn
Matter metal, which causes to volatilize since saturated vapor pressure is relatively low in alloying process, leads to the overproof problem of ingredient；
Step 3: it is longitudinally cutting to the progress of rectangle ingot blank described in step 2, obtain polylith strip piece；
In actual mechanical process, preferred processing procedure is：Rectangle ingot blank is taken to carry out along its length longitudinally cutting,
It is cut into width 45mm, the strip piece of the elongated side of thickness 45mm, removal head shrinkage cavity, the central axial casting flaws such as loose,
Step 4: four long sides to strip piece described in step 3 carry out 45 ° of chamfer machinings respectively, after then processing
Strip piece be sent into pass milling train in carry out groove rolling, obtain cross sectional shape be ellipse, equivalent diameter be 9mm semi-finished product
Silk material；The groove rolling is that commutation rolls, and the pass reduction of the groove rolling is 12%, the passage of the groove rolling
Number is 27 passages, and multiple first intermediate annealing, the general working rate of adjacent first intermediate annealing twice are carried out during groove rolling
For 40% (once being annealed after often rolling 4 passages)；The temperature of first intermediate annealing is 780 DEG C, and soaking time is
40min；
By the way that rectangular strip piece chamfer machining has been eliminated internal stress, then carried out along its diagonal line in pass milling train
Commutation rolling can preferably solve to deform by controlling pass reduction and the twice general working rate between the first intermediate annealing
Cracking phenomena caused by uneven two；
Step 5: process wire described in step 4 is protected in argon gas atmosphere, temperature is kept the temperature under conditions of being 700 DEG C
40min is made annealing treatment；
Step 6: carrying out 36 passage wire drawings to the process wire after being made annealing treatment in step 5, obtaining cross sectional shape is
Circle, diameter of section are the silk material of 2.0mm；The pass reduction of the wire drawing is 8%, is carried out in multiple second in drawing process
Between anneal, the general working rate of adjacent second intermediate annealing twice is 60% (once being annealed after 11 passage of often wire drawing)；Institute
The temperature for stating the second intermediate annealing is 700 DEG C, soaking time 30min；
Step 7: silk material described in step 6 is carried out 1 passes on milling train, the general working rate of rolling is 50%,
Obtain engine components sealing silver-based multicomponent alloy narrowband.
Camber caused by inhomogeneous deformation two, snakelike curved, dimensional tolerance range can be eliminated by aximal deformation value rolling
Big phenomenon obtains the narrowband of high dimensional accuracy.
Engine components sealing manufactured in the present embodiment is with the size of silver-based multicomponent alloy narrowband：Thickness 0.6mm, width
2.6mm, performance are：725 DEG C of solidus, 810 DEG C of liquidus curve, 810 DEG C~830 DEG C of brazing temperature.
Embodiment 2
The preparation method of the present embodiment engine components sealing silver-based multicomponent alloy narrowband, which is characterized in that this method
Include the following steps：
Step 1: weighing various raw materials according to following mass percent：Cu 46%, Zn 8%, Mn 9%, surplus Ag；
It is 1 in vacuum degree Step 2: the various raw materials weighed in step 1 are added together in vacuum induction refining furnace
×10-2MPa, temperature refine 5min under conditions of being 1000 DEG C, rectangle ingot blank are obtained after casting；
Step 3: it is longitudinally cutting to the progress of rectangle ingot blank described in step 2, obtain polylith strip piece；
Step 4: four long sides to strip piece described in step 3 carry out 45 ° of chamfer machinings respectively, after then processing
Strip piece be sent into pass milling train and carry out groove rolling, it is ellipse to obtain cross sectional shape, equivalent diameter be 10mm half at
Product silk material；The groove rolling is that commutation rolls, and the pass reduction of the groove rolling is 10%, during groove rolling into
The general working rate of multiple first intermediate annealing of row, adjacent first intermediate annealing twice (carries out for 70% after often rolling 12 passages
Primary annealing)；The temperature of first intermediate annealing is 720 DEG C, soaking time 60min；
Step 5: process wire described in step 4 is protected in argon gas atmosphere, temperature is kept the temperature under conditions of being 760 DEG C
50min is made annealing treatment；
Step 6: carrying out 36 passage wire drawings to the process wire after being made annealing treatment in step 5, obtaining cross sectional shape is
Circle, diameter of section are the silk material of 1.0mm；The pass reduction of the wire drawing is 12%, and multiple second is carried out in drawing process
The general working rate of intermediate annealing, adjacent second intermediate annealing twice is 30% (carrying out once annealing per 3 passage of wire drawing)；It is described
The temperature of second intermediate annealing is 640 DEG C, soaking time 45min；
Step 7: silk material described in step 6 to be carried out to the rolling of 2 passage narrowbands on milling train, the general working rate of rolling is
70%, obtain engine components sealing silver-based multicomponent alloy narrowband.
Engine components sealing manufactured in the present embodiment is with the size of silver-based multicomponent alloy narrowband：Thickness 0.16mm, it is wide
Spend 1.5mm；Performance is：725 DEG C of solidus, 810 DEG C of liquidus curve, 810 DEG C~830 DEG C of brazing temperature.
Embodiment 3
The preparation method of the present embodiment engine components sealing silver-based multicomponent alloy narrowband, which is characterized in that this method
Include the following steps：
Step 1: weighing various raw materials according to following mass percent：Cu 47%, Zn 6%, Mn 8%, surplus Ag；
It is 5 in vacuum degree Step 2: the various raw materials weighed in step 1 are added together in vacuum induction refining furnace
×10-3MPa, temperature refine 2min under conditions of being 750 DEG C, rectangle ingot blank are obtained after casting；
Step 3: it is longitudinally cutting to the progress of rectangle ingot blank described in step 2, obtain polylith strip piece；
Step 4: four long sides to strip piece described in step 3 carry out 45 ° of chamfer machinings respectively, after then processing
Strip piece be sent into pass milling train in carry out groove rolling, obtain cross sectional shape be ellipse, equivalent diameter be 6mm semi-finished product
Silk material；The groove rolling is that commutation rolls, and the pass reduction of the groove rolling is 15%, and the road number of groove rolling is
26 passages carry out multiple first intermediate annealing during groove rolling, and the general working rate of adjacent first intermediate annealing twice is
55% (once being annealed after often rolling 5 passages)；The temperature of first intermediate annealing is 700 DEG C, and soaking time is
30min；
Step 5: process wire described in step 4 is protected in argon gas atmosphere, temperature is kept the temperature under conditions of being 640 DEG C
55min is made annealing treatment；
Step 6: carrying out 28 passage wire drawings to the process wire after being made annealing treatment in step 5, obtaining cross sectional shape is
Circle, diameter of section are the silk material of 1.4mm；The pass reduction of the wire drawing is 10%, and multiple second is carried out in drawing process
The general working rate of intermediate annealing, adjacent second intermediate annealing twice is 35% (once being annealed after 4 passage of every wire drawing)；Institute
The temperature for stating the second intermediate annealing is 710 DEG C, soaking time 25min；
Step 7: silk material described in step 6 to be carried out to the rolling of 1 passage narrowband on milling train, the general working rate of rolling is
30%, obtain engine components sealing silver-based multicomponent alloy narrowband.
Engine components sealing manufactured in the present embodiment is with the size of silver-based multicomponent alloy narrowband：Thickness 0.36mm, it is wide
3mm is spent, performance is：725 DEG C of solidus, 810 DEG C of liquidus curve, 810 DEG C~830 DEG C of brazing temperature.
The above is only presently preferred embodiments of the present invention, is not imposed any restrictions to the present invention.It is every according to invention skill
Art essence still falls within technical solution of the present invention to any simple modification, change and equivalence change made by above example
Protection domain in.
Claims (6)
1. a kind of preparation method of engine components sealing silver-based multicomponent alloy narrowband, which is characterized in that this method include with
Lower step：
Step 1: weighing various raw materials according to following mass percent：Cu 46%~50%, Zn 5%~8%, Mn 7%~
9%, surplus Ag；
Step 2: by the various raw materials weighed in step 1 vacuum degree be 1 × 10-3MPa~1 × 10-2Under conditions of MPa into
Row refining, obtains rectangle ingot blank after casting；
Step 3: it is longitudinally cutting to the progress of rectangle ingot blank described in step 2, obtain polylith strip piece；
Step 4: four long sides to strip piece described in step 3 carry out chamfer machining respectively, it then will be after chamfer machining
Strip piece is sent into pass milling train and carries out groove rolling, and it is ellipse to obtain cross sectional shape, and equivalent diameter is the half of 6mm~10mm
Finished product silk material；
Step 5: process wire described in step 4 is protected in argon gas atmosphere, under conditions of temperature is 640 DEG C~760 DEG C
Heat preservation 25min~55min is made annealing treatment；
Step 6: carrying out multi-pass wire drawing to the process wire after being made annealing treatment in step 5, it is circle to obtain cross sectional shape,
Diameter of section is the silk material of 1mm~2mm；
Step 7: carrying out the rolling of 1~2 passage narrowband to silk material described in step 6, the engine that cross sectional shape is rectangle is obtained
Component sealing silver-based multicomponent alloy narrowband, the cross-sectional width of the narrowband are 0.5mm~3mm, section thickness be 0.15mm~
0.6mm；
Groove rolling described in step 4 is that commutation rolls, and the pass reduction of the groove rolling is 10%~15%, pass
Multiple first intermediate annealing is carried out in the operation of rolling, the general working rate of adjacent first intermediate annealing twice is 40%~70%；Institute
The temperature for stating the first intermediate annealing is 700 DEG C~780 DEG C, and soaking time is 30min~60min.
2. a kind of preparation method of engine components sealing silver-based multicomponent alloy narrowband according to claim 1, special
Sign is that the temperature refined described in step 2 is 750 DEG C~1000 DEG C.
3. a kind of preparation method of engine components sealing silver-based multicomponent alloy narrowband according to claim 1, special
Sign is that the time refined described in step 2 is 2min~5min.
4. a kind of preparation method of engine components sealing silver-based multicomponent alloy narrowband according to claim 1, special
Sign is that the angle of chamfer machining described in step 4 is 45 °.
5. a kind of preparation method of engine components sealing silver-based multicomponent alloy narrowband according to claim 1, special
Sign is that the pass reduction of wire drawing described in step 6 is 8%~12%, in drawing process move back among multiple second
The general working rate of fire, adjacent second intermediate annealing twice is 30%~60%；The temperature of second intermediate annealing be 640 DEG C~
710 DEG C, soaking time is 25min~45min.
6. a kind of preparation method of engine components sealing silver-based multicomponent alloy narrowband according to claim 1, special
Sign is that the general working rate of the rolling of narrowband described in step 7 is 30%~70%.
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| CN106392372A (en) | 2017-02-15 |
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