CN102554486A - High heat conduction welding material and manufacture method thereof - Google Patents
High heat conduction welding material and manufacture method thereof Download PDFInfo
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- CN102554486A CN102554486A CN2010106105174A CN201010610517A CN102554486A CN 102554486 A CN102554486 A CN 102554486A CN 2010106105174 A CN2010106105174 A CN 2010106105174A CN 201010610517 A CN201010610517 A CN 201010610517A CN 102554486 A CN102554486 A CN 102554486A
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Abstract
The invention provides a high heat conduction welding material and a manufacture method thereof, which belong to the field of welding materials. The high heat conduction welding material comprises a welding material body and a strip-shaped high heat conduction membrane mixed in the welding material body. The welding material body is made of at least one of a tin-lead welding material, a nickel base welding material, a carbon steel and steel welding material, an aluminum base welding material, a copper base welding material and a silver base welding material. The high heat conduction membrane is a high heat conduction graphite membrane or a graphene membrane. The manufacture method of the high heat conduction welding material comprises manufacturing the high heat conduction membrane; evenly mixing a liquid welding material body and the high heat conduction membrane; and processing the mixture of the liquid welding material body and the high heat conduction membrane, and cooling and solidifying the mixture to obtain the high heat conduction welding material. By means of the high heat conduction welding material and the manufacture method of the high heat conduction welding material, the shortcoming of poor heat conduction performance of the welding material in the prior art can be overcome.
Description
Technical field
The present invention relates to field of welding material.
Background technology
A lot of electronic products, mechanical device etc. all need be used the good welding material of heat conductivility and connect; Welding material in the prior art products is generally carbon steel wlding or metal wlding; Comparatively speaking, the heat conductivility of some metal wlding is better, like the thermal conductivity of aluminium is: 237W/mK; The thermal conductivity of copper is: 401W/mK; The thermal conductivity of silver is: 429W/mK; Heat conductivility for welding materials such as tin, lead is then relatively poor, and for example the thermal conductivity of tin is: 67W/mK; Plumbous thermal conductivity is: 34.8W/mK; The thermal conductivity of carbon steel is 46.4-52W/mK.
Numerous areas such as electronic product, machinery, electric power, communication, chemical industry in the process of the processing of product, production, and in the process of using, all can produce the different heat of quantity.If the heat that produces can not effectively be distributed, processing and use to product all might impact.The heat conductivility of at present a lot of welding materials is good inadequately, can not satisfy the demand of high heat dispersion far away.
Therefore, the problem that presses for those skilled in the art's solution at present is to seek the welding material with high thermal conductivity, to satisfy the requirement of many electronic products to high heat dispersion.
In the present invention, can be applied to membrane material with high heat dispersion.Wherein, utilize the height heat radiation graphite film of carbon component made, have very high heat-sinking capability, can reach 1500～1750W/mK.
And, then having more powerful heat-sinking capability at present as the grapheme material of research focus, its thermal conductivity is about 5000W/mK.
Summary of the invention
In order to overcome the not high defective of welding material heat conductivility in the prior art, the present invention provides a kind of high heat conduction welding material and manufacturing approach thereof.
The technical scheme that the present invention adopts is:
A kind of high heat conduction welding material, described high heat conduction welding material includes the wlding body, and the high heat conduction diaphragm that is blended in the strip in the wlding body.
Preferably, the high heat conduction diaphragm of described strip, integral body is wrapped in the wlding body, to improve the capacity of heat transmission of whole welding material.
Preferably, the high heat conduction diaphragm of described strip also can be prepared into the diaphragm structure that comprises an above strip structure and marginal texture, and when the preparation welding material, the strip structure of heat conduction diaphragm is wrapped in the wlding body, and marginal texture is positioned at wlding, and this is external.When carrying out welding operation, can heat be delivered on the welding material fast through the marginal texture of the high heat conduction diaphragm of heating, make its fusing and weld.
Preferably, high heat conduction diaphragm, by high conductive graphite film and graphene film at least one of which prepare, preparation the width range of bar form height heat conducting film sheet be 0.01-15mm, the length range of high heat conduction diaphragm is 0.1-200mm.
Preferably, high heat conduction diaphragm also can be prepared into compound high heat conduction diaphragm, because high heat conduction diaphragm is a flexible material, fully launches for making high heat conduction diaphragm, can high heat conduction diaphragm be arranged on the matrix structure, forms compound high heat conduction diaphragm.Described matrix structure is metal material or both one of which of thermal conductive ceramic.
Preferably, described wlding body is one of at least a wlding in tin-lead solder, Ni-based wlding, carbon steel and steel wlding, aluminium base wlding, copper base wlding, the money base wlding; Described high heat conduction welding material is for welding plate, welding rod, welding wire, solder flux, the metal dust form of one of which at least.
Preferably, in the described high heat conduction welding material, the mass ratio that high heat conduction diaphragm accounts for total welding material is 0.1%-30%.
The present invention also provides a kind of manufacturing approach of high heat conduction welding material, and this method may further comprise the steps,
Step 1 prepares high heat conduction diaphragm;
Step 2 is evenly mixed liquid wlding body and high heat conduction diaphragm;
Step 3, liquid towards wlding body and high heat conduction diaphragm mixture are handled, and cooled and solidified forms high heat conduction welding material.
Preferably, in the said step 1, high heat conduction diaphragm is a strip, is made by high conductive graphite film or graphene film, and the high heat conducting film chip size of preparation is long 0.1-200mm, wide 0.01-15mm.In addition, high heat conduction diaphragm can be prepared into compound substrate, is covered in metal or non-metal material surface forms compound high heat conduction diaphragm by high heat conduction diaphragm.
Preferably, described liquid wlding body is obtained through the fusing of rising temperature by welding material.Described welding material is one of at least a wlding in tin-lead solder, Ni-based wlding, carbon steel and steel wlding, aluminium base wlding, copper base wlding, the money base wlding.Certainly, other wlding commonly used also can be used as the wlding body described in the present invention.
Preferably, described liquid towards wlding body and high heat conduction diaphragm mixture are handled, its processing mode be following one of them:
Making sheet is handled, and liquid wlding body and high heat conduction diaphragm mixture is processed tabular, becomes the weldering plate after the cooled and solidified;
Tie rod is handled, and liquid wlding body and high heat conduction diaphragm mixture are carried out the tie rod processing, becomes welding rod after the cooled and solidified;
Wire drawing is handled, and liquid wlding body and high heat conduction diaphragm mixture are pulled into the filament shape, becomes welding wire after the cooled and solidified;
Pulverization process is carried out pulverization process with liquid wlding body and high heat conduction diaphragm mixture, becomes the powder wlding after the cooled and solidified.
Description of drawings
Fig. 1-the 1st, a kind of high sketch map of leading hot-weld board shown in the embodiment of the invention.
Fig. 1-2 is the sketch map that the another kind of height shown in the embodiment of the invention is led hot-weld board.
Fig. 1-the 3rd, another height shown in the embodiment of the invention is led the sketch map of hot-weld board.
Fig. 1-the 4th, a kind of high sketch map of leading hot-weld board shown in another embodiment of the present invention.
Fig. 1-the 5th, the sketch map of a kind of high heat conduction welding wire shown in the embodiment of the invention.
Fig. 2 is a high heat conduction welding material step of manufacturing flow chart of the present invention.
The specific embodiment
In commercial production, need use welding material with heat conductivility through regular meeting.Such as, the welding material in the fields such as electronic radiation device all needs good heat-sinking capability.
In the present invention, in conjunction with existing high heat conducting film material, can realize a kind of welding material with stronger capacity of heat transmission.
This high heat conduction welding material includes the wlding body, and the high heat conduction diaphragm that is blended in the strip in the wlding body.
Described high heat conduction diaphragm refers to the list structure with high heat dispersion.The typical case includes high conductive graphite film or graphene film for example.Utilize the high conductive graphite film of carbon component preparation, have the very high capacity of heat transmission, thermal conductivity can reach: 1500～1750W/mK.And grapheme material then has the more powerful capacity of heat transmission, and its thermal conductivity is about 5000W/mK.Among the present invention with high conductive graphite film or graphene film as heat-conducting medium, the heat dispersion of welding material is promoted significantly.
The general designation of consumable material when described wlding body is meant welding; Material for conduct welding commonly used at present; Like tin-lead solder, Ni-based wlding, carbon steel and steel wlding, aluminium base wlding, copper base wlding, money base wlding etc., and some other wlding commonly used all can be used as the wlding body among the present invention.The high heat conduction welding material that makes can be that weldering plate, welding rod, welding wire, solder flux, metal dust etc. are multi-form.
For the structure of high heat conduction diaphragm, can be independent graphite film or graphene film structure, also can be the mixed structure of graphite film or graphene film and other auxiliary base materials.The high heat conduction diaphragm of described strip width range is 0.01-15mm, and the length range of high heat conduction diaphragm is 0.1-200mm.The mass ratio of described high heat conduction diaphragm in total welding material is 0.1%-30%.
In addition, high heat conduction diaphragm also can be prepared into compound high heat conduction diaphragm, because high heat conduction diaphragm is flexible material, in welding material, being easy to can distortion or folding, when high heat conduction diaphragm can't drawout, can influence the heat conductivility of whole welding material.In this case, can adopt auxiliary base material to make high heat conduction diaphragm reduce crooked probability.
During practical implementation, can carry out like this: with described form height heat conducting film sheet, be arranged on the base material of counter structure on, form compound high heat conduction diaphragm.Between high heat conduction diaphragm and auxiliary base material, can fix through bonding mode, perhaps, through solidifying the mode of fixing, both are fixed then through heat fusing part base material.In addition, also can high heat conduction diaphragm and egative film be fixed through the mode of clamping.
The base material that is adopted is preferably metal material, like aluminium, copper etc.; Can certainly be other nonmetallic materials, like thermal conductive ceramic etc.
There is different modes in combining form for high heat conduction diaphragm and wlding body:
First kind of combination is: high heat conduction diaphragm integral body is wrapped in the wlding body, and a plurality of high heat conduction diaphragms are dispersed in the wlding body interior.
Height shown in Fig. 1-1 is led hot-weld board 100, is exactly this combination, and welding material is shaped as board-like, and high heat conduction diaphragm 120 is dispersed in format wlding body 110 inside.
High heat conduction welding wire 500 shown in Fig. 1-5 also is this combination, and high heat conduction diaphragm 520 is dispersed in thread wlding body 510 inside.
Second kind of combination is: the high heat conduction diaphragm of strip is the diaphragm structure that comprises an above strip structure and marginal texture, and the strip structure of heat conduction diaphragm is wrapped in the wlding body, and marginal texture is positioned at wlding, and this is external.
Height shown in Fig. 1-4 is led hot-weld board 400; Be second kind of combination; High heat conduction diaphragm is divided into list structure 420 and marginal texture 410 two parts, and high heat conduction diaphragm has 2 list structures 420, all is positioned at the wlding body interior; There is the gap between two list structures, is beneficial to high heat conduction diaphragm firm in the wlding body.Marginal texture 410 is positioned at the wlding body exterior, when carrying out welding operation, can heat is delivered on the welding material fast through the marginal texture 410 of the high heat conduction diaphragm of heating, makes its fusing and welds.
In addition, lead hot-weld board for height, also have different layout structures, for the layout structure as welding, can the weldering plate space of a whole page be made into groove form or bulge-structure, this structure can make more convenient the carrying out of welding operation.
Height shown in Fig. 1-2 is led hot-weld board 200, and its layout structure is bulge-structure, and wherein 310 is bossings, and the 220th, the high heat conduction diaphragm in the wlding body;
Height shown in Fig. 1-3 is led hot-weld board 300, and its layout structure is channel form, and wherein 210 is groove structures, and the 320th, the high heat conduction diaphragm in the wlding body.
In conjunction with high heat conduction welding material described above, describe in detail in the face of the manufacturing approach of the high heat conduction welding material of preparation down, as shown in Figure 2, this method may further comprise the steps:
Step 1 prepares high heat conduction diaphragm;
Step 2 is evenly mixed liquid wlding body and high heat conduction diaphragm;
Step 3, liquid towards wlding body and high heat conduction diaphragm mixture are handled, and cooled and solidified forms high heat conduction welding material.
In the step 1, high heat conduction diaphragm is a strip, is made by high conductive graphite film or graphene film, and the high heat conducting film chip size of preparation is long 0.1-200mm, wide 0.01-15mm.
In addition, high heat conduction diaphragm can be prepared into compound high heat conduction diaphragm, is covered in metal or non-metal material surface forms compound high heat conduction diaphragm by high heat conduction diaphragm, and its preparation method has been done to be described in detail in front.
In the step 2, described liquid wlding body is obtained through the fusing of rising temperature by welding material.Welding material is one of at least a wlding in tin-lead solder, Ni-based wlding, carbon steel and steel wlding, aluminium base wlding, copper base wlding, the money base wlding.Certainly, other wlding commonly used also can be used as the wlding body described in the present invention.
After obtaining liquid wlding body and high heat conduction diaphragm mixture,, can carry out different processing with high heat conduction diaphragm mixture by liquid towards wlding body in order to obtain difform high heat conduction welding material.Therefore the processing mode in the step 3 has following several kinds:
Making sheet is handled, and in order to obtain welding the high heat conduction welding material of plate structure, can liquid wlding body and high heat conduction diaphragm mixture be processed tabularly, and cooled and solidified becomes the weldering plate then;
Tie rod is handled, and in the time of need obtaining welding rod, then liquid wlding body and high heat conduction diaphragm mixture is carried out tie rod processing, cooled and solidified then;
Wire drawing is handled, and is meant liquid wlding body and high heat conduction diaphragm mixture are pulled into the filament shape, becomes welding wire after the cooled and solidified;
Pulverization process is carried out pulverization process with liquid wlding body and high heat conduction diaphragm mixture, becomes the powder wlding after the cooled and solidified.
More than be the description of this invention and non-limiting, based on other embodiment of inventive concept, all among protection scope of the present invention.
Claims (16)
1. one kind high heat conduction welding material, it is characterized in that: described high heat conduction welding material includes the wlding body, and the high heat conduction diaphragm that is blended in the strip in the wlding body.
2. a kind of high heat conduction welding material according to claim 1 is characterized in that: the high heat conduction diaphragm of described strip, integral body is wrapped in the wlding body.
3. a kind of high heat conduction welding material according to claim 1 is characterized in that: the high heat conduction diaphragm of described strip, comprise an above strip structure and marginal texture, and its strip structure is wrapped in the wlding body, and marginal texture is positioned at wlding, and this is external.
4. a kind of high heat conduction welding material according to claim 1, it is characterized in that: the width range of described form height heat conducting film sheet is 0.01-15mm, the length range of high heat conduction diaphragm is 0.1-200mm.
5. a kind of high heat conduction welding material according to claim 1 is characterized in that: described wlding body is one of at least a wlding in tin-lead solder, Ni-based wlding, carbon steel and steel wlding, aluminium base wlding, copper base wlding, the money base wlding.
6. a kind of high heat conduction welding material according to claim 1 is characterized in that: described high heat conduction welding material is for welding plate, welding rod, welding wire, solder flux, the metal dust form of one of which at least.
7. a kind of high heat conduction welding material according to claim 1 is characterized in that: described high heat conduction diaphragm is high conductive graphite film and graphene film one of which at least.
8. a kind of high heat conduction welding material according to claim 1 is characterized in that: the high heat conduction diaphragm of described bar shaped, be arranged on the matrix structure, and form compound high heat conduction diaphragm.
9. a kind of high heat conduction welding material according to claim 8 is characterized in that: described matrix structure is metal material or both one of which of thermal conductive ceramic.
10. a kind of high heat conduction welding material according to claim 1 is characterized in that: in the described high heat conduction welding material, the mass ratio that high heat conduction diaphragm accounts for total welding material is 0.1%-30%.
11. the manufacturing approach of a high heat conduction welding material is characterized in that: this method may further comprise the steps,
Step 1 prepares high heat conduction diaphragm;
Step 2 is evenly mixed liquid wlding body and high heat conduction diaphragm;
Step 3, liquid towards wlding body and high heat conduction diaphragm mixture are handled, and cooled and solidified forms high heat conduction welding material.
12. the manufacturing approach of the high heat conduction welding material of a kind of tool according to claim 11 is characterized in that: in the said step 1, high heat conduction diaphragm is a strip, and high heat conducting film chip size is long 0.1-20mm, wide 0.01-5mm.
13. the manufacturing approach of the high heat conduction welding material of a kind of tool according to claim 11; It is characterized in that: in the said step 1; High heat conduction diaphragm can be compound substrate, is covered in metal or non-metal material surface forms compound high heat conduction diaphragm by high heat conduction diaphragm.
14. the manufacturing approach of the high heat conduction welding material of a kind of tool according to claim 11 is characterized in that: described high heat conduction diaphragm is high conductive graphite film and graphene film one of which at least.
15. the manufacturing approach of the high heat conduction welding material of a kind of tool according to claim 14 is characterized in that: described welding material is one of at least a wlding in tin-lead solder, Ni-based wlding, carbon steel and steel wlding, aluminium base wlding, copper base wlding, the money base wlding.
16. the manufacturing approach of the high heat conduction welding material of a kind of tool according to claim 11 is characterized in that: described liquid towards wlding body and high heat conduction diaphragm mixture are handled, and processing mode is following one of them mode:
Making sheet is handled, and liquid wlding body and high heat conduction diaphragm mixture is processed tabular, becomes the weldering plate after the cooled and solidified;
Tie rod is handled, and liquid wlding body and high heat conduction diaphragm mixture are carried out the tie rod processing, becomes welding rod after the cooled and solidified;
Wire drawing is handled, and liquid wlding body and high heat conduction diaphragm mixture are pulled into the filament shape, becomes welding wire after the cooled and solidified;
Pulverization process is carried out pulverization process with liquid wlding body and high heat conduction diaphragm mixture, becomes the powder wlding after the cooled and solidified.
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Cited By (9)
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| CN105382440A (en) * | 2015-12-23 | 2016-03-09 | 哈尔滨工业大学 | Graphene-enhanced Al-based composite solder auxiliary soldering method |
| CN106346111A (en) * | 2016-09-18 | 2017-01-25 | 安徽克里斯特新材料有限公司 | Press roller surface gas shielded surfacing process based on modified Fe-based graphene composite solder |
| CN106735681A (en) * | 2016-12-28 | 2017-05-31 | 无锡市雷克莱特电器有限公司 | Full automatic superconducting body microwelding equipment Graphene welding head structure |
| CN107186331A (en) * | 2017-06-28 | 2017-09-22 | 兰州大学 | A kind of new YBCO coating conductors welding point of graphene-containing and preparation method |
| CN109175764A (en) * | 2018-09-20 | 2019-01-11 | 哈尔滨工业大学 | A kind of method of graphene sponge middle layer assistant brazing |
| CN109411376A (en) * | 2018-11-02 | 2019-03-01 | 武汉天马微电子有限公司 | Display panel manufacturing method and display panel |
| CN111037147A (en) * | 2020-02-26 | 2020-04-21 | 郑州大学 | Combined stainless steel core coated welding rod |
| CN111168273A (en) * | 2020-02-12 | 2020-05-19 | 郑州大学 | Flux-cored welding rod for stainless steel welding |
| CN112809241A (en) * | 2020-12-31 | 2021-05-18 | 南京力之兴焊接材料有限公司 | Aluminum soldering paste and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382440A (en) * | 2015-12-23 | 2016-03-09 | 哈尔滨工业大学 | Graphene-enhanced Al-based composite solder auxiliary soldering method |
| CN106346111A (en) * | 2016-09-18 | 2017-01-25 | 安徽克里斯特新材料有限公司 | Press roller surface gas shielded surfacing process based on modified Fe-based graphene composite solder |
| CN106735681A (en) * | 2016-12-28 | 2017-05-31 | 无锡市雷克莱特电器有限公司 | Full automatic superconducting body microwelding equipment Graphene welding head structure |
| CN107186331A (en) * | 2017-06-28 | 2017-09-22 | 兰州大学 | A kind of new YBCO coating conductors welding point of graphene-containing and preparation method |
| CN109175764A (en) * | 2018-09-20 | 2019-01-11 | 哈尔滨工业大学 | A kind of method of graphene sponge middle layer assistant brazing |
| CN109175764B (en) * | 2018-09-20 | 2020-07-07 | 哈尔滨工业大学 | Method for auxiliary brazing of graphene sponge middle layer |
| CN109411376A (en) * | 2018-11-02 | 2019-03-01 | 武汉天马微电子有限公司 | Display panel manufacturing method and display panel |
| CN111168273A (en) * | 2020-02-12 | 2020-05-19 | 郑州大学 | Flux-cored welding rod for stainless steel welding |
| CN111168273B (en) * | 2020-02-12 | 2021-04-23 | 郑州大学 | Flux-cored welding rod for stainless steel welding |
| CN111037147A (en) * | 2020-02-26 | 2020-04-21 | 郑州大学 | Combined stainless steel core coated welding rod |
| CN112809241A (en) * | 2020-12-31 | 2021-05-18 | 南京力之兴焊接材料有限公司 | Aluminum soldering paste and preparation method thereof |
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