CN205122399U - Copper covers compound rivet contact of silver -colored graphite alkene - Google Patents
Copper covers compound rivet contact of silver -colored graphite alkene Download PDFInfo
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- CN205122399U CN205122399U CN201520803653.3U CN201520803653U CN205122399U CN 205122399 U CN205122399 U CN 205122399U CN 201520803653 U CN201520803653 U CN 201520803653U CN 205122399 U CN205122399 U CN 205122399U
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- silver
- rivet contact
- colored graphene
- rivet
- copper
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Abstract
The utility model provides a copper covers compound rivet contact of silver -colored graphite alkene, the rivet contact includes the main part, the head and/or the afterbody of main part are equipped with silver -colored graphite alkene composite bed. The main part of rivet contact becomes for the copper. The utility model discloses a compound rivet contact that electric conductive property is good, hardness is high, the electric life is high is prepared out as rivet head or afterbody clad material to silver graphite alkene. Simultaneously, this method is simple, and the technology controllability is good, and is with low costs, easy realization of large -scale production, rivet contact material tissue is even, the stable performance.
Description
Technical field
The utility model belongs to electric device field, specifically, is that a kind of copper covers silver-colored Graphene composite rivet contact, and such as copper covers the two composite rivet contact (AgGR/Cu) of silver-colored Graphene, three composite rivet contact (AgGR/Cu/AgGR).
Background technology
In low-voltage electrical apparatus, silver-based composite material is current most popular contact material.In order to saving silver resource, reduce entreprise cost, Some Enterprises brings into use two composite rivet contact and three composite rivet contact simultaneously.But due to restriction that the is silver-colored and performance of alloy own, copper covers silver-colored rivet contact and also there is a lot of deficiency.At present the main clad material adopted is silver-colored nickel, silver/tin oxide etc., alloying element nickel or adding of reinforcement tin oxide silver-based material electric conductivity is declined, meanwhile, the thickness of money base coating and the electric life performance of rivet closely related.
Graphene is a kind of environment-friendly type carbonaceous new material by the bi-dimensional cellular shape lattice structure of carbon atom dense packing of the unique existence found at present, and its thickness, usually within 10 nanometers, has extra specific surface area 2630m
2/ g, be that the material that current known strength is the highest reaches 130GPa, its current-carrying mobility is up to 150,000cm
2/ Vs.If the excellent properties of Graphene is incorporated in silver-based composite material, bring tremendous influence by for the design of silver-based composite material and performance boost, silver-colored Graphene (AgGR) is applied in composite rivet and also will improves electric conductivity and the reliability thereof of rivet.
Publication number is the Chinese utility model patent of CN202585146U, and provide a kind of rivet composite contact, be made up of matrix and composite bed, described composite bed is positioned at the top of matrix.In this patent, composite bed is that metal platinum or platinum alloy are made, although the combination property of composite rivet makes moderate progress, its production cost significantly improves, and hinders industrial applications.
Publication number is the Chinese invention patent of CN101226836A, provides the preparation method that a kind of copper covers silver and silver alloy three composite rivet contact.This invention uses three composite algorithms to prepare AgSnO
2/ Cu/AgSnO
2three composite rivet contact, AgCdO
10/ Cu/AgCdO
10three composite rivet contact, Ag/Cu/Ag three composite rivet contact.Three composite rivet contact not only increases the combination property of rivet, also reduces production cost, but in this invention, composite bed is AgCdO
10, cadmium element all can cause larger upper injury to human body or environment.Find a kind of new environmental protection clad material and become problem demanding prompt solution.
Therefore, a kind of environmental protection, low cost, high performance composite rivet contact not only have important scientific research value, and have market application widely.
Utility model content
The purpose of this utility model is for the deficiencies in the prior art, provides a kind of copper to cover silver-colored Graphene composite rivet contact, adopts silver-colored Graphene as novel clad material, and rivet contact obtained by this method has excellent electric conductivity and higher electric life.
The utility model is achieved through the following technical solutions:
The utility model provides a kind of copper to cover silver-colored Graphene composite rivet contact, and described rivet contact comprises main body, is head above described main body, and the below of described main body is the afterbody of rivet contact, and described head and/or described afterbody are provided with silver-colored Graphene composite bed.
Preferably, the upper surface of described head is provided with silver-colored Graphene composite bed.
Preferably, the lower surface of described afterbody is provided with silver-colored Graphene composite bed.
Preferably, the main body of described rivet contact is that copper becomes.
Preferably, described silver-colored Graphene composite bed and described main body process composite molding by rivet driver.
Preferably, described silver-colored Graphene composite bed, thickness is 0.05-1mm.
Concrete, when to cover silver-colored Graphene composite rivet contact be Send double deck complex rivet to described copper, the upper surface (lower surface of head and body contact) of described head is provided with silver-colored Graphene composite bed, and main body is that copper becomes.
Concrete, when to cover silver-colored Graphene composite rivet contact be three layers of composite rivet contact to described copper, the upper surface of described head and/or the lower surface (upper surface of afterbody and body contact) of afterbody are equipped with silver-colored Graphene composite bed, described main body is between afterbody and head, and described main body is that copper becomes.The composite silver Graphene of rivet contact can improve contact conductivity, obtains higher electric life simultaneously.
The utility model adopts silver-colored Graphene as rivet head or afterbody clad material, can be conducted electricity very well, hardness is high, composite rivet contact that electric life is high.Meanwhile, this composite rivet contact preparation method is simple, and process controllability is good, and cost is low, easily accomplishes scale production, and rivet contact material structure is even, stable performance.
The utility model gained copper covers the two compound of silver-colored Graphene or three composite rivet contact material, different unlike selected clad material from existing, the utility model is that silver-colored Graphene is as clad material, introduce high performance grapheme material, rivet contact electric property is improved obviously, can meet different application demands preferably.
Compared with prior art, the beneficial effect that has of the utility model:
(1) the silver-colored Graphene composite bed of creationary employing and Copper substrate carry out compound, make interface cohesion good;
(2) compared with traditional silver-colored graphite material, silver-colored grapheme material has applicable hardness and plasticity, can prepare the silver-colored Graphene silk material of stable performance, be applicable to composite rivet contact;
(3) electric conductivity of silver-colored Graphene excellence and arc resistance energy, make composite rivet have good physical property, have higher electric life compared with traditional rivet contact.
Composite rivet contact excellent performance of the present utility model, breaches a series of problem in science and technical barrier.Such as adopt the two composite rivet contact of the AgGR/Cu of the utility model design, the vickers hardness hv of silver-colored Graphene composite bed is 80; The vickers hardness hv of Copper substrate layer is 110; This composite rivet has low and stable contact resistance; High electric life characteristic.
Accompanying drawing explanation
Fig. 1 is AgGR/Cu Send double deck complex rivet structural representation in the utility model one embodiment.
Fig. 2 is AgGR/Cu/AgGR three composite rivet contact structural representation in the utility model one embodiment.
Fig. 3 is the arcing energy in the utility model one embodiment in the electrical endurance test of AgGR/Cu Send double deck complex rivet.
Fig. 4 is the arcing time in the utility model one embodiment in the electrical endurance test of AgGR/Cu Send double deck complex rivet.
Fig. 5 is the contact resistance in the utility model one embodiment in the electrical endurance test of AgGR/Cu Send double deck complex rivet.
Embodiment
Elaborate to embodiment of the present utility model below, following examples give detailed execution mode and concrete operating process, but protection range of the present utility model is not limited to following embodiment.
The utility model devises a kind of copper and covers silver-colored Graphene composite rivet contact, and described rivet contact comprises main body, and described head and/or described afterbody are provided with silver-colored Graphene composite bed.
As shown in Figure 1, this figure is the two composite rivet contact structural representation of AgGR/Cu of the utility model one embodiment: this contact is double-decker, and wherein main body is copper one-tenth and Copper substrate 2, is head above main body, and the upper surface of head is provided with silver-colored graphene layer 1.Wherein silver-colored Graphene composite bed and Copper substrate process composite molding by rivet driver.
Described silver-colored Graphene composite bed, thickness is 0.05-1mm.
As shown in Figure 2, this figure is the AgGR/Cu/AgGR three composite rivet contact structural representation of the utility model preferred embodiment: this contact is three-decker, intermediate host 2 is copper one-tenth and Copper substrate, it is head above main body 2, the upper surface of head is provided with silver-colored graphene layer 1, be afterbody below main body, afterbody lower surface is provided with silver-colored graphene layer 1.Wherein silver-colored Graphene composite bed and Copper substrate process composite molding by rivet driver.
Described silver-colored Graphene composite bed, thickness is 0.05-1mm.
In another embodiment, be only provided with silver-colored graphene layer 1 at the afterbody of composite rivet contact main body, also can improve contact conductivity, obtain higher electric life simultaneously.
Copper described in the utility model covers in silver-colored Graphene composite rivet contact, and silver-colored Graphene and copper interface cohesion well, have excellent physical property.Meanwhile, the preparation technology of the utility model composite rivet is simple, and process is easily controlled, application of easily accomplishing scale production.
The composite rivet contact structure that the utility model is above-mentioned, preparation method is: utilize composite rivet machine work to obtain composite rivet contact silver-colored Graphene silk material and copper wire material.Further, in silver-colored Graphene silk material, Graphene content is 0.5wt%-5wt%.
In order to better understand the utility model, below provide the specific embodiment of preparation method to illustrate, but concrete enforcement of the present utility model is not limited to following examples:
Embodiment 1
The step that the present embodiment 1 prepares the two composite rivet contact of AgGR/Cu is as follows:
I) material composition of silver-colored Graphene silk material
Material composition mainly argent and the Graphene of silver Graphene silk material, wherein Graphene content is 0.5wt%-5wt%.Certainly in other embodiments, also can choose the material composition of concrete silver-colored Graphene silk material according to actual needs, be not limited to listed by the utility model embodiment.
II) step of the two composite rivet contact of AgGR/Cu is prepared
1) adopt after chemical preparation goes out silver-colored graphene powder, the silver-colored Graphene silk material that to utilize powder metallurgy and Hot-extrusion to prepare diameter be 4mm; Gained silk material is carried out performance test, finds that resistivity is 1.53 Ω m × 10
-8; Density is 10.31g/cm
3; Hot strength is 190MPa; Elongation is 42%.
2), under described silver-colored Graphene silk material being placed in hydrogen environment, anneal 4.5 hours for 400 DEG C.Utilize wire drawing machine, the silver-colored Graphene silk material of be the silver-colored Graphene silk material drawing of 4mm by diameter to be diameter be 2.5mm.
3) utilize two composite rivet machine, silver-colored Graphene silk material and copper wire material compound are prepared the two composite rivet contact of AgGR/Cu, silver-colored Graphene composite bed thickness is 0.1mm.
Electrical endurance test by two for AgGR/Cu obtained above composite rivet contact:
1) by two for gained composite rivet contact, be contained on electrical contact electricity life machine, under 220V alternating voltage, 20A, resistive load condition, carry out electrical contact electricity life, cycle-index is 400000 times.
2) result of the test is as shown in Fig. 3, Fig. 4, Fig. 5.The two composite rivet contact of described AgGR/Cu, has lower arcing energy and arcing time, has low and stable contact resistance simultaneously.Fig. 3 demonstrate arcing energy for ~ 600mJ, Fig. 4 demonstrate the arcing time for ~ 25ms, Fig. 5 demonstrate contact resistance for ~ 0.0012m Ω.
Embodiment 2
1) adopt existing silver-colored Graphene silk material and copper wire material, silver-colored Graphene silk material diameter is 1.5-2.5mm; Copper wire material diameter is 1.5-2.5mm;
2) utilize composite rivet machine, silver-colored Graphene silk material and copper wire material compound are prepared the two composite rivet contact of AgGR/Cu or AgGR/Cu/AgGR three composite rivet contact.
The composite rivet contact excellent performance that the utility model is prepared, the two composite rivet contact of the AgGR/Cu that such as the utility model obtains, the vickers hardness hv of silver-colored Graphene composite bed is 80; The vickers hardness hv of Copper substrate layer is 110; This composite rivet has low and stable contact resistance; High electric life characteristic.
Should be understood that, above-described embodiment is only a part of execution mode of the present utility model.Although content of the present utility model has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be regarded as restriction of the present utility model.After those skilled in the art have read foregoing, for multiple amendment of the present utility model and substitute will be all apparent.Therefore, protection range of the present utility model should be limited to the appended claims.
Claims (8)
1. copper covers a silver-colored Graphene composite rivet contact, it is characterized in that: described rivet contact comprises main body, and the head of described main body and/or afterbody are provided with silver-colored Graphene composite bed.
2. copper according to claim 1 covers silver-colored Graphene composite rivet contact, it is characterized in that: the upper surface of described head is provided with silver-colored Graphene composite bed.
3. copper according to claim 1 covers silver-colored Graphene composite rivet contact, it is characterized in that: the lower surface of described afterbody is provided with silver-colored Graphene composite bed.
4. copper according to claim 1 covers silver-colored Graphene composite rivet contact, it is characterized in that: the main body of described rivet contact is that copper becomes.
5. copper according to claim 1 covers silver-colored Graphene composite rivet contact, it is characterized in that: described silver-colored Graphene composite bed and described main body process composite molding by rivet driver.
6. copper according to claim 1 covers silver-colored Graphene composite rivet contact, it is characterized in that: described silver-colored Graphene composite bed, thickness is 0.05-1mm.
7. the copper according to any one of claim 1-6 covers silver-colored Graphene composite rivet contact, it is characterized in that: when to cover silver-colored Graphene composite rivet contact be Send double deck complex rivet to described copper, the upper surface of described head is provided with silver-colored Graphene composite bed, and main body is that copper becomes.
8. the copper according to any one of claim 1-6 covers silver-colored Graphene composite rivet contact, it is characterized in that: when to cover silver-colored Graphene composite rivet contact be three layers of composite rivet contact to described copper, the upper surface of described head and/or the lower surface of afterbody are equipped with silver-colored Graphene composite bed, described main body is between afterbody and head, and described main body is that copper becomes.
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|---|---|---|---|
| CN201520803653.3U CN205122399U (en) | 2015-10-16 | 2015-10-16 | Copper covers compound rivet contact of silver -colored graphite alkene |
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|---|---|---|---|
| CN201520803653.3U CN205122399U (en) | 2015-10-16 | 2015-10-16 | Copper covers compound rivet contact of silver -colored graphite alkene |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185608A (en) * | 2015-10-16 | 2015-12-23 | 上海和伍复合材料有限公司 | Copper-coated-with-silver graphene composite rivet contact and preparation method therefor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185608A (en) * | 2015-10-16 | 2015-12-23 | 上海和伍复合材料有限公司 | Copper-coated-with-silver graphene composite rivet contact and preparation method therefor |
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