CN1132674A - Composite solder and its prodn process - Google Patents
Composite solder and its prodn process Download PDFInfo
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- CN1132674A CN1132674A CN 95118821 CN95118821A CN1132674A CN 1132674 A CN1132674 A CN 1132674A CN 95118821 CN95118821 CN 95118821 CN 95118821 A CN95118821 A CN 95118821A CN 1132674 A CN1132674 A CN 1132674A
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Abstract
A composite spelter for braze welding of hard alloy/steel workpiece to obtain high shear and impact strengthes of welded part is a three-layer structure including two outer layers of silver alloy and core layer of Cu-base alloy containing Sn (3.0-6.5 Wt.%), P or Si (0.1-0.3) and Cu (rest) and is made by rolling overlapped said three layers, thermal treatment for diffusion between surfaces and refine rolling to obtain finished product of 0.3 mm in thickness.
Description
The present invention relates to carbide alloy and drill rod and connect and use composite soldering, particularly accompany the formation and the manufacture method thereof of three layers of composite soldering band of sandwich layer between silver solder alloy.
Carbide alloy and drill rod meet area 〉=10 * 10mm
2The soldering occasion, during with common solder alloy soldering, because the linear expansion coefficient of carbide alloy and steel is widely different, behind the pricker in the cooling procedure, steel can produce obvious contraction, and that carbide alloy shrinks is very little, and the result is not because solder layer is torn by the part and made a brazing filler metal intensity decline, make carbide alloy produce be full of cracks exactly, in order to eliminate this stress rupture phenomenon that carbide alloy and drill rod postwelding are produced, in existing technology, using a kind of silver solder/copper/silver solder three shape composite soldering layer by layer.The spy opens the manufacture method that clear 63-44476 discloses a kind of like this composite soldering.The silver solder alloy plate promptly thick at 2mm, that 130mm is wide, 500mm is long is electroplated last layer 5 μ m copper by middle copper coin one side, then sandwiching a copper coin that 4mm is thick, 130mm, wide 500mm are long between these two blocks of silver solder plates, after 500 ℃ of heating, with 5.0 tons/cm
2Pressure compacting, obtain the composite plate blank, and then be rolled into the composite soldering band of thickness 0.30mm, during soldering, intermediate layer copper does not melt, behind pricker in the cooling procedure, copper will behind the pricker since two kinds partly sponged because of the stress that coefficient of expansion greatest differences is produced by brazing metal, thereby improve a brazing filler metal intensity and eliminate the carbide alloy cracking phenomena.This class composite soldering intermediate layer fine copper matter is soft, and the plasticity height can absorb residual stress behind the pricker well.But, in practicality, find, be subjected under high shear force and the greater impact load at pricker spare, destroy all vestiges of visible copper of incision position, promptly at middle copper damage layer, moreover, in the mill since the resistance of deformation of sandwich layer copper well below the resistance of deformation of silver solder, manufacturing process's complexity of material, cost is higher.
The spy opens clear 56-165587 and also discloses a kind of compound silver solder, and its version mainly contains two kinds, and a kind of is the two-layer composite soldering of garden cylindricality, and its internal layer is a silver-base alloy, and its skin is an acid bronze alloy.Another kind of form is a three ply board formula structure composite soldering, and its sandwich layer is a silver-base alloy, and its two skin is an acid bronze alloy.But this composite soldering core alloys and outer layer alloys when soldering melt simultaneously, form brazing filler metal alloy after the alloying, thereby are not suitable for brazing filler metal area 〉=10 * 10mm
2Carbide alloy and the brazing filler metal of steel.
Purpose of the present invention is to overcome the shortcoming of prior art, and a kind of improved composite soldering is provided, with the member of soldering carbide alloy and steel effectively.Use composite soldering of the present invention, both can absorb effectively behind the pricker because two kinds of stress that produced because of coefficient of expansion greatest differences by brazing metal, can improve the intensity, particularly shearing strength of brazing filler metal head again, the shock resistance of joint is better than fine copper core goods.
Technical scheme of the present invention is, opens the spy on the basis of clear 63-44476, changes the composition of sandwich layer, is about to sandwich layer and changes a kind of acid bronze alloy into by fine copper.
Composite soldering of the present invention is made up of three-decker, and its two skin is a kind of prior art silver solder alloy (1), and its composition (weight %) is: Ag 48～50, Cu 18.0～28.0, and Zn 20.0～21.0, and Mn 2.0～8.0, Ni 0.3～5.0, and its fusion temperature is 670～690 ℃; Feature of the present invention is: the sandwich layer of said composite soldering is a kind of acid bronze alloy (2), and its composition (weight %) is: Sn 3.0～6.5, a kind of 0.1～0.3 among P or the Si, Cu surplus.
The manufacture method of composite soldering of the present invention comprises the three-decker composite rolling, and Diffusion Welding heat treatment subsequently and last finish rolling, it is characterized in that having following concrete operation:
A. make sheet material a slice that 1.0～4.0mm is thick, 100～150mm is wide in advance by sandwich layer acid bronze alloy (2) composition of design;
B. make two of the sheet materials that 0.5～2.0mm is thick, 100～150mm is wide in advance by two outer silver solder alloy (1) compositions of design;
C. use machinery or chemical method cleaning process A and the prepared sheet material of B, and under 500～600 ℃ of temperature, annealed 2～4 hours;
D. will be stacked together through the silver solder alloy and the acid bronze alloy sheet material of above-mentioned processing, the acid bronze alloy sheet is clipped between the two silver solder alloy sheets, three's same length, the milling train of then it being sent into gross pressure and be 350～400 tons carries out composite rolling, obtains the composite soldering base band of three-decker;
E. the prepared composite soldering base of step D band is incubated 4～8 hours down at 300～550 ℃, carries out Diffusion Welding heat treatment between composite surface, composite surface is combined into one securely;
F. finish rolling will be arrived needed thickness 0.3mm through the composite soldering base band finish rolling of operation E;
G. adopt above-mentioned manufacture method, can obtain different solder layers and core layer thickness ratio, i.e. solder layer: sandwich layer: solder layer=1: (1.5～2.0) in design in advance: 1, and composite soldering band gross thickness is 0.3 ± 0.05mm.
Compare with prior art, composite soldering of the present invention and manufacture method thereof have following advantage:
1, copper alloy sandwich layer in pricker joint is because soft relatively, HB≤100, and there is the stress 45～60% between carbide alloy and steel faying face in absorption of residual effectively, and its effect is suitable with fine copper;
2, use composite soldering of the present invention, when soldering YG8 carbide alloy and 65Mn steel, its joint shearing strength can reach 220～270MPa, improves 15～42% than fine copper core structure like product, and the capacity of resisting impact load of joint has also had obvious improvement;
3, manufacture method is simple, and operation is few, and manufacturing cost is lower, is particularly suitable for continuous batch production.
Description of drawings:
Fig. 1 is the structural representation of composite soldering of the present invention, and wherein (1) is the silver solder alloy, and (2) are the sandwich layer acid bronze alloys.
Embodiment 1
Prepare two of the silver solder sheet alloys of thick 1.0mm, wide 100mm, acid bronze alloy sheet material a slice of thick 2.0mm, wide 100mm with the alloying element of purity 〉=99.9% by the known technology method.The composition of silver solder alloy (weight %) is: Ag 49, and Cu 18.0, and Zn 20.0, Mn8.0, and Ni 5.0; The composition of acid bronze alloy is: Sn 3.0, and P 0.3, the Cu surplus.With the above-mentioned sheet material of alcohol wash, and under 600 ℃, annealed 2 hours.To stack through the sheet metal layer of above-mentioned processing, copper base alloy plate is clipped between the two silver solder alloy sheets, and three's length is identical, then it is sent into milling train and carry out composite rolling under 400 tons of pressure, obtains the composite soldering base band of three-decker.Solder base band is incubated 5 hours down at 450 ℃, carries out Diffusion Welding heat treatment, and then finish rolling is thick to 0.3mm, composite soldering gets product.
Prepare two of the silver solder sheet alloys of thick 0.5mm, wide 100mm, acid bronze alloy sheet material a slice of thick 1.0mm, wide 100mm with the alloying element of purity 〉=99.9% by the known technology method.The composition of silver solder alloy is identical with embodiment 1; The composition of acid bronze alloy is: Sn 3.0, and Si 0.3, the Cu surplus.With the above-mentioned sheet material of alcohol wash, and under 550 ℃, annealed 4 hours.To stack through the sheet metal layer of above-mentioned processing, copper base alloy plate is clipped between the two silver solder alloy sheets, and three's length is identical, then it is sent into milling train and carry out composite rolling under 350 tons of pressure, obtains the composite soldering base band of three-decker.Solder base band is incubated 5 hours down at 400 ℃, carries out Diffusion Welding heat treatment, and then finish rolling is thick to 0.3mm, composite soldering gets product.
Embodiment 3
Prepare two of the silver solder sheet alloys of thick 1.0mm, wide 150mm, acid bronze alloy sheet material a slice of thick 1.5mm, wide 150mm with the alloying element of purity 〉=99.9% by the known technology method.The composition of silver solder alloy is identical with embodiment 1; The composition of acid bronze alloy is: Sn 4.0, and Si 0.2, the Cu surplus.With the above-mentioned sheet material of alcohol wash, and under 600 ℃, annealed 3 hours.To stack through the sheet metal layer of above-mentioned processing, copper base alloy plate is clipped between the two silver solder alloy sheets, and three's length is identical, then it is sent into milling train and carry out composite rolling under 350 tons of pressure, obtains the composite soldering base band of three-decker.Solder base band is incubated 6 hours down at 500 ℃, carries out Diffusion Welding heat treatment, and then finish rolling is thick to 0.3mm, composite soldering gets product.
Embodiment 4
Prepare two of the silver solder sheet alloys of thick 2.0mm, wide 100mm, acid bronze alloy sheet material a slice of thick 4.0mm, wide 100mm with the alloying element of purity 〉=99.9% by the known technology method.The composition of silver solder alloy is identical with embodiment 1; The composition of acid bronze alloy is: Sn4.0, P 0.2, the Cu surplus.With the above-mentioned sheet material of alcohol wash, and under 600 ℃, annealed 4 hours.To stack through the sheet metal layer of above-mentioned processing, copper base alloy plate is clipped between the two silver solder alloy sheets, and three's length is identical, then it is sent into milling train and carry out composite rolling under 400 tons of pressure, obtains the composite soldering base band of three-decker.Solder base band is incubated 6 hours down at 550 ℃, carries out Diffusion Welding heat treatment, and then finish rolling is thick to 0.3mm, composite soldering gets product.
Embodiment 5
Substantially the same manner as Example 1, just the composition of acid bronze alloy is Sn 5.0, and P 0.2, the Cu surplus.
Embodiment 6
Substantially the same manner as Example 1, just the composition of acid bronze alloy is Sn 5.0, and Si 0.2, the Cu surplus.
Embodiment 7
Substantially the same manner as Example 1, just the composition of acid bronze alloy is Sn 6.0, and P 0.1, the Cu surplus.
Embodiment 8
Substantially the same manner as Example 2, just the composition of acid bronze alloy is Sn 6.0, and Si 0.1, the Cu surplus.
Embodiment 9
Substantially the same manner as Example 3, just the composition of acid bronze alloy is Sn 6.5, and P 0.15, the Cu surplus.
Embodiment 10
Substantially the same manner as Example 4, just the composition of acid bronze alloy is Sn 6.5, and Si 0.15, the Cu surplus.
Composite soldering (Comparative Examples 1) with above-mentioned composite soldering of the present invention and silver solder/copper/silver solder structure adopts high-frequency induction heating soldering YG8 carbide alloy/65Mn steel workpiece down at 730 ℃, on workpiece, survey the shearing strength of brazing filler metal head then, and compare, its result is as shown in table 1, as seen from Table 1, the shearing strength of the brazing filler metal head of composite soldering of the present invention on average improves 15～42% than the shearing strength of fine copper sandwich layer composite soldering brazing filler metal head.
Table 1
Specimen coding shearing strength (MPa) embodiment 1 230 embodiment 2 220 embodiment 3 248 embodiment 4 254 embodiment 5 255 embodiment 6 250 embodiment 7 265 embodiment 8 260 embodiment 9 270 embodiment 10 265 Comparative Examples 1 190
Claims (2)
1, a kind of composite soldering, be made up of three-decker, its two skin is a kind of prior art silver solder alloy (1), and its composition (weight %) is: Ag 48～50, Cu 18.0～28.0, Zn 20.0～21.0, and Mn 2.0～8.0, and Ni 0.3～5.0, feature of the present invention is: the sandwich layer of said composite soldering is a kind of acid bronze alloy (2), its composition (weight %) is: Sn 3.0～6.5, a kind of 0.1～0.3 among P or the Si, Cu surplus.
2, a kind of manufacture method of composite soldering comprises the three-decker composite rolling, and Diffusion Welding heat treatment subsequently and last finish rolling, it is characterized in that having following concrete operation:
A. make sheet material a slice that 1.0～4.0mm is thick, 100～150mm is wide in advance by sandwich layer acid bronze alloy (2) composition of design;
B. make two of the sheet materials that 0.5～2.0mm is thick, 100～150mm is wide in advance by two outer silver solder alloy (1) compositions of design;
C. use machinery or chemical method cleaning process A and the prepared sheet material of B, and under 500～600 ℃ of temperature, annealed 2～4 hours;
D. will be stacked together through the silver solder alloy and the acid bronze alloy sheet material of above-mentioned processing, the acid bronze alloy sheet is clipped between the two silver solder alloy sheets, three's same length, the milling train of then it being sent into gross pressure and be 350～400 tons carries out composite rolling, obtains the composite soldering base band of three-decker;
E. the prepared composite soldering base of step D band is incubated 4～8 hours down at 300～550 ℃, carries out Diffusion Welding heat treatment between composite surface, composite surface is combined into one securely;
F. finish rolling will be arrived needed thickness 0.3mm through the composite soldering base band finish rolling of operation E;
G. adopt above-mentioned manufacture method, can obtain different solder layers and core layer thickness ratio, i.e. solder layer: sandwich layer: solder layer=1: (1.5～2.0) in design in advance: 1, and composite soldering band gross thickness is 0.3 ± 0.05mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95118821 CN1038183C (en) | 1995-12-27 | 1995-12-27 | Composite solder and its prodn process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95118821 CN1038183C (en) | 1995-12-27 | 1995-12-27 | Composite solder and its prodn process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1132674A true CN1132674A (en) | 1996-10-09 |
| CN1038183C CN1038183C (en) | 1998-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95118821 Expired - Fee Related CN1038183C (en) | 1995-12-27 | 1995-12-27 | Composite solder and its prodn process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1038183C (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316053C (en) * | 2005-01-14 | 2007-05-16 | 北京科技大学 | Metal material index rolling method |
| CN1325181C (en) * | 2005-01-14 | 2007-07-11 | 北京科技大学 | Method for preparing constructional gradient material |
| CN100382904C (en) * | 2005-01-14 | 2008-04-23 | 北京科技大学 | Process for preparing metal composite material |
| CN102126112A (en) * | 2011-03-16 | 2011-07-20 | 中南大学 | Preparation method of electromagnetic shielding multi-layer composite material in electric vacuum device |
| CN102489894A (en) * | 2011-12-05 | 2012-06-13 | 贵研铂业股份有限公司 | Novel composite welding flux |
| CN103203565A (en) * | 2012-01-12 | 2013-07-17 | 郑州大学 | High temperature-resistant welding flux for high-power semiconductor laser arrays and stacks |
| CN106271202A (en) * | 2016-08-30 | 2017-01-04 | 北京有色金属与稀土应用研究所 | A kind of composite brazing material and preparation method thereof |
| CN106346165A (en) * | 2016-08-30 | 2017-01-25 | 郑州机械研究所 | High-tin-content silver welding rod and manufacturing method thereof |
| CN108788517A (en) * | 2018-07-05 | 2018-11-13 | 四川广正科技有限公司 | A kind of low-cost and high-performance solder and preparation method thereof |
| CN111468857A (en) * | 2020-04-15 | 2020-07-31 | 郑州机械研究所有限公司 | Composite solder and preparation method and application thereof |
| CN115302123A (en) * | 2022-08-29 | 2022-11-08 | 大连理工大学 | High-reliability composite brazing filler metal sheet capable of being welded at low temperature, preparation method and application thereof |
-
1995
- 1995-12-27 CN CN 95118821 patent/CN1038183C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316053C (en) * | 2005-01-14 | 2007-05-16 | 北京科技大学 | Metal material index rolling method |
| CN1325181C (en) * | 2005-01-14 | 2007-07-11 | 北京科技大学 | Method for preparing constructional gradient material |
| CN100382904C (en) * | 2005-01-14 | 2008-04-23 | 北京科技大学 | Process for preparing metal composite material |
| CN102126112A (en) * | 2011-03-16 | 2011-07-20 | 中南大学 | Preparation method of electromagnetic shielding multi-layer composite material in electric vacuum device |
| CN102489894B (en) * | 2011-12-05 | 2013-09-11 | 贵研铂业股份有限公司 | Novel composite welding flux |
| CN102489894A (en) * | 2011-12-05 | 2012-06-13 | 贵研铂业股份有限公司 | Novel composite welding flux |
| CN103203565A (en) * | 2012-01-12 | 2013-07-17 | 郑州大学 | High temperature-resistant welding flux for high-power semiconductor laser arrays and stacks |
| CN103203565B (en) * | 2012-01-12 | 2016-02-03 | 郑州大学 | For the high temperature resistant solder of high power semiconductor lasers array and folded battle array |
| CN106271202A (en) * | 2016-08-30 | 2017-01-04 | 北京有色金属与稀土应用研究所 | A kind of composite brazing material and preparation method thereof |
| CN106346165A (en) * | 2016-08-30 | 2017-01-25 | 郑州机械研究所 | High-tin-content silver welding rod and manufacturing method thereof |
| CN106346165B (en) * | 2016-08-30 | 2019-02-05 | 郑州机械研究所 | A kind of high tin silver solder and preparation method thereof |
| CN108788517A (en) * | 2018-07-05 | 2018-11-13 | 四川广正科技有限公司 | A kind of low-cost and high-performance solder and preparation method thereof |
| CN111468857A (en) * | 2020-04-15 | 2020-07-31 | 郑州机械研究所有限公司 | Composite solder and preparation method and application thereof |
| CN115302123A (en) * | 2022-08-29 | 2022-11-08 | 大连理工大学 | High-reliability composite brazing filler metal sheet capable of being welded at low temperature, preparation method and application thereof |
| CN115302123B (en) * | 2022-08-29 | 2024-03-22 | 大连理工大学 | High-reliability composite solder sheet capable of being welded at low temperature, preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1038183C (en) | 1998-04-29 |
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