CN108754196A - A kind of preparation method of bonding acieral busbar - Google Patents
A kind of preparation method of bonding acieral busbar Download PDFInfo
- Publication number
- CN108754196A CN108754196A CN201811000424.2A CN201811000424A CN108754196A CN 108754196 A CN108754196 A CN 108754196A CN 201811000424 A CN201811000424 A CN 201811000424A CN 108754196 A CN108754196 A CN 108754196A
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- bonding
- acieral
- busbar
- preparation
- bar
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Wire Bonding (AREA)
- Conductive Materials (AREA)
Abstract
The present invention relates to alloy busbar processing technique fields, and in particular to a kind of preparation method of bonding acieral busbar.Main technical schemes are：A kind of preparation method of bonding acieral busbar, includes the following steps：Prepare mixed raw material；The mixed raw material includes：At least one of aluminum feedstock, element silicon and ferro element, copper, nickel element；Melting mixed raw material；Mixed liquor after fusing keeps the temperature the predetermined time in predetermined temperature；Metallic element and content of impurities in mixed liquor in addition to aluminium are less than 200ppm；To mixed liquor degasification and filter；Mixed liquor is subjected to bar casting；Bar carries out evenly heating processing；Bar is squeezed into bonding acieral busbar.The tensile strength of bonding acieral busbar can be promoted using the present invention, and make it have higher elongation percentage.
Description
Technical field
The present invention relates to alloy busbar processing technique field more particularly to a kind of preparation sides of bonding acieral busbar
Method.
Background technology
Bonding busbar is the processing precursor of bonding wire, i.e. bonding is processed as bonding wire with busbar through drawing, and line footpath is in 10-
Between 500 μm.Bonding wire is one of the primary structural material of integrated antenna package industry, in addition to for integrated circuit, bonding wire
It is widely used in the semiconductor separation parts such as diode, triode or component as lead.Bonding wire is wanted as conducting wire
Ask it relatively low in the resistance of pad, i.e. the conductivity of unit volume is higher, thus available metal be confined to gold, silver, aluminium and
In copper.Wherein the advantages of bonding aluminium wire, is：Conductivity height (10 μ Ω cm of electricalresistivityρ <)；Elongation percentage is big, and terminal is bonded aluminium wire
20~100 μm can be drawn to；Fusing point is low, can be welded at normal temperatures, is influenced on component smaller；Electrochemically resistant corrosive power
It is relatively strong；It is of low cost, therefore be widely used.
The bonding busbar of traditional method production, after meeting the requirement of elongation percentage, tensile strength is relatively low, and then influences it
Bonding performance.
Invention content
In view of this, the present invention provides a kind of preparation method of bonding acieral busbar, main purpose is full
After the requirement of sufficient elongation percentage, the tensile strength of bonding acieral busbar is promoted, and makes it have higher elongation percentage.
In order to achieve the above objectives, present invention generally provides following technical solutions：
The embodiment of the present invention provides a kind of preparation method of bonding acieral busbar, includes the following steps：
Prepare mixed raw material；The mixed raw material includes：In aluminum feedstock, element silicon and ferro element, copper, nickel element
At least one；
Melting mixed raw material；Mixed liquor after fusing keeps the temperature the predetermined time in predetermined temperature；In mixed liquor in addition to aluminium
Metallic element and content of impurities are less than 200ppm；
To mixed liquor degasification and filter；
Mixed liquor is subjected to bar casting；
Bar carries out evenly heating processing；
Bar is squeezed into bonding acieral busbar.
Further, the holding temperature of the mixed liquor after fusing is 730~745 DEG C.
Further, the soaking time of the mixed liquor after fusing is 0.5~2 hour.
Further, the temperature of bar casting is 690~720 DEG C.
Further, the evenly heating treatment temperature of bar is 400~500 DEG C；
The evenly heating processing time of bar is 4~8 hours.
Further, 380~440 DEG C of the extrusion die temperature that bar is extruded；
Extrusion cylinder temperature is 380~440 DEG C.
Further, the purity of the aluminum feedstock is 99.999~99.9995%.
Further, the silicon content is 10~30ppm.
Further, a kind of content in the iron, copper, nickel is 10~40ppm.
Further, the bar casting is carried out using semicontinuous casting machine.
By above-mentioned technical proposal, the present invention is bonded at least has following advantages with the preparation method of acieral busbar：
Bonding is higher with the tensile strength of acieral busbar, and makes it have higher elongation percentage, can avoid its
Drawing or the extrusion process disconnection problem caused by elongation percentage deficiency.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, below with presently preferred embodiments of the present invention and after coordinating attached drawing to be described in detail such as.
Description of the drawings
Fig. 1 is using a kind of bonding of the preparation method production of bonding acieral busbar provided in an embodiment of the present invention
With the micro-organization chart of acieral busbar.
Specific implementation mode
It is of the invention to reach the technological means and effect that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Specific implementation mode, structure, feature and its effect applied according to the present invention is described in detail such as in attached drawing and preferred embodiment
Afterwards.In the following description, what different " embodiment " or " embodiment " referred to is not necessarily the same embodiment.In addition, one or more
Special characteristic, structure or feature in a embodiment can be combined by any suitable form.
A kind of preparation method for bonding acieral busbar that one embodiment of the present of invention proposes, including walk as follows
Suddenly：
Prepare mixed raw material；The ultrapure aluminum feedstock for the use of purity being 99.999%~99.9995%.Metallic element is added,
Silicon content is 10~30ppm, and the present embodiment chooses element silicon 30ppm；One kind in ferro element, copper, nickel element contains
Amount is 10~40ppm；The present embodiment chooses copper 30ppm, nickel element 30ppm and ferro element 10ppm.The metal of all additions
The raw material of element is 99.999% or more purity, to ensure the stability contorting of mixed raw material proportioning.
Melting mixed raw material；The heating that carries out of the raw metal of ultrapure aluminum feedstock and addition is melted using vacuum melting furnace
Refining.Metallic element and content of impurities in mixed liquor in addition to aluminum feedstock are less than 200ppm；Addition amount of metal can drop when higher
The conductivity of low-alloy busbar.Mixed liquor after fusing is kept the temperature, and holding temperature is 730~745 DEG C, soaking time 0.5
~2 hours, to ensure that melting is mixed thoroughly.
To mixed liquor degasification and filter；After aluminum feedstock melts completely, mixeding liquid temperature is made to be maintained between 730~745 DEG C,
Be stirred with online degasification, by logical argon gas degasification, argon flow amount is 2~5m3/ min, online degasification time 6min.Online
Degasification terminates rear surface and skims, and 30min is stood after skimming.After degasification, mixed liquor passes through 40PPI filter plates.
Mixed liquor is subjected to bar casting；Bar casting is carried out using semicontinuous casting machine.The temperature of bar casting is 690
DEG C~720 DEG C.The casting preferably pieces of bar stock of a diameter of 120mm, convenient for processing in next step.
Bar carries out evenly heating processing；The evenly heating treatment temperature of bar is 400~500 DEG C；The evenly heating of bar is handled
Time is 4~8 hours, can improve the crystalline structure and performance inside bar, eliminates casting stress, reduces segregation, in favor of
Thereafter extruding production.
Bar is cut to extruder prove-in length.6 hours are kept the temperature by being warming up to 450 DEG C after bar addition soaking pit.It will.
380~440 DEG C of the extrusion die temperature that bar is extruded；Extrusion cylinder temperature is 380~440 DEG C.Bonding is squeezed into be closed with aluminium base
After golden busbar, busbar winding and packaging are carried out.
A kind of preparation method production procedure of bonding acieral busbar provided in an embodiment of the present invention is longer but single
Procedure technology is simple.Casting bar degasification slagging-off ability is stronger, and bar quality controllability is good.Bar is to wire rod extrusion deformation degree
Greatly, wire internal grain uniformity is good after molding, and plasticity is high, and follow-up deformability is strong.
With reference to figure 1, using a kind of preparation method production of bonding acieral busbar provided in an embodiment of the present invention
The microstructure grain uniformity of bonding acieral busbar is preferable, and the tensile strength of bonding acieral busbar is higher,
And make it have higher elongation percentage, can avoid its in drawing or extrusion process the disconnection problem caused by elongation percentage deficiency.
The bonding of the method for the present invention production see the table below with acieral busbar physical performance index.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, according to
According to the technical spirit of the present invention to any simple modification, equivalent change and modification made by above example, this hair is still fallen within
In the range of bright technical solution.
Claims (10)
1. a kind of preparation method of bonding acieral busbar, which is characterized in that include the following steps：
Prepare mixed raw material；The mixed raw material includes：In aluminum feedstock, element silicon and ferro element, copper, nickel element extremely
Few one kind；
Melting mixed raw material；Mixed liquor after fusing keeps the temperature the predetermined time in predetermined temperature；Metal in mixed liquor in addition to aluminium
Element and content of impurities are less than 200ppm；
To mixed liquor degasification and filter；
Mixed liquor is subjected to bar casting；
Bar carries out evenly heating processing；
Bar is squeezed into bonding acieral busbar.
2. the preparation method of bonding acieral busbar according to claim 1, which is characterized in that
The holding temperature of mixed liquor after fusing is 730~745 DEG C.
3. the preparation method of bonding acieral busbar according to claim 2, which is characterized in that
The soaking time of mixed liquor after fusing is 0.5~2 hour.
4. the preparation method of bonding acieral busbar according to claim 3, which is characterized in that
The temperature of bar casting is 690~720 DEG C.
5. the preparation method of bonding acieral busbar according to claim 4, which is characterized in that
The evenly heating treatment temperature of bar is 400~500 DEG C；
The evenly heating processing time of bar is 4~8 hours.
6. the preparation method of bonding acieral busbar according to claim 5, which is characterized in that
380~440 DEG C of the extrusion die temperature that bar is extruded；
Extrusion cylinder temperature is 380~440 DEG C.
7. the preparation method of bonding acieral busbar according to claim 6, which is characterized in that
The purity of the aluminum feedstock is 99.999~99.9995%.
8. the preparation method of bonding acieral busbar according to claim 7, which is characterized in that
The silicon content is 10~30ppm.
9. the preparation method of bonding acieral busbar according to claim 8, which is characterized in that
A kind of content in the iron, copper, nickel is 10~40ppm.
10. the preparation method of bonding acieral busbar according to claim 9, which is characterized in that
The bar casting is carried out using semicontinuous casting machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811000424.2A CN108754196B (en) | 2018-08-30 | 2018-08-30 | Preparation method of aluminum-based alloy bus for bonding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811000424.2A CN108754196B (en) | 2018-08-30 | 2018-08-30 | Preparation method of aluminum-based alloy bus for bonding |
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| CN108754196A true CN108754196A (en) | 2018-11-06 |
| CN108754196B CN108754196B (en) | 2020-10-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208264A (en) * | 2019-06-17 | 2019-09-06 | 新疆众和股份有限公司 | A kind of method for making sample of high-purity aluminium busbar metallographic sample |
| CN113584355A (en) * | 2021-08-03 | 2021-11-02 | 上杭县紫金佳博电子新材料科技有限公司 | Aluminum-based alloy bus for bonding and preparation method thereof |
| CN113584354A (en) * | 2021-08-03 | 2021-11-02 | 上杭县紫金佳博电子新材料科技有限公司 | Bonding aluminum alloy wire and preparation method thereof |
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| JPH09310140A (en) * | 1996-05-17 | 1997-12-02 | Fuji Photo Film Co Ltd | Aluminum alloy substrate for lithographic plate and its production |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113584355A (en) * | 2021-08-03 | 2021-11-02 | 上杭县紫金佳博电子新材料科技有限公司 | Aluminum-based alloy bus for bonding and preparation method thereof |
| CN113584354A (en) * | 2021-08-03 | 2021-11-02 | 上杭县紫金佳博电子新材料科技有限公司 | Bonding aluminum alloy wire and preparation method thereof |
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| CN108754196B (en) | 2020-10-09 |
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