CN105428863A - Connector in amplifier - Google Patents

Connector in amplifier Download PDF

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Publication number
CN105428863A
CN105428863A CN201510823790.8A CN201510823790A CN105428863A CN 105428863 A CN105428863 A CN 105428863A CN 201510823790 A CN201510823790 A CN 201510823790A CN 105428863 A CN105428863 A CN 105428863A
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CN
China
Prior art keywords
layer
connector
silicon nitride
tin
phosphor bronze
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CN201510823790.8A
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Chinese (zh)
Inventor
杨继波
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Ningbo City Yinzhou Yongjia Connecting Device Factory (general Partner)
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Ningbo City Yinzhou Yongjia Connecting Device Factory (general Partner)
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Priority to CN201510823790.8A priority Critical patent/CN105428863A/en
Publication of CN105428863A publication Critical patent/CN105428863A/en
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • C22C9/02—Alloys based on copper with tin as the next major constituent

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Products (AREA)

Abstract

The present invention relates to a connector in an amplifier, and belongs to the technical field of an alloy material. The connector consists of a base segment, a middle segment and a connecting segment. The middle segment consists of a curved portion disposed in a right angle circular arc mode and thickened portions disposed on the two ends of the curved portion; an outer diameter of each thickened portion is greater than the outer diameter of the curved portion; the base segment consists of a vertical portion and a horizontal portion, and is disposed in a '7 shape; the horizontal portion is connected with one of the thickened portions of the middle segment; the connecting segment consists of an inserting portion and an extending position; a circular ring is arranged at a joint of the inserting portion and the extending position; the outer diameter of the circular ring is equal to the outer diameter of each thickened portion; the extending portion is connected with the other one of the thickened portions of the middle segment; the outer diameter of the extending portion is equal to the outer diameter of the curved portion; the connector is made of a three-dimensional network silicon nitride ceramic/tin-phosphor bronze composite; the composite comprises 10 to 30 percent by volume of three layers of layered porous silicon nitride ceramic and 70 to 90 percent by volume of tin-phosphor bronze. The connector has relatively high mechanical performance, good conductivity and good thermal fatigue resistance.

Description

Connector in a kind of amplifier
Technical field
The present invention relates to a kind of connector, be specifically related to the connector in a kind of amplifier, belong to technical field of alloy material.
Background technology
Connector is a kind of parts common in electronic engineering, and its effect is very simple: be blocked in circuit between place or isolated obstructed circuit, erect the bridge of communication, thus make current flowing, make the function that circuit realiration is predetermined.Connector is indispensable parts in electronic equipment, and the path along current flowing is observed, and always finds that there is one or more connector.Connector form and structure are Protean, along with differences such as application, frequency, power, applied environments, have various multi-form connector.Such as, the connector of lighting and the connector of hard disk drive on court, and the connector lighting rocket differs widely.But connector whatever, all will ensure that electric current is continuously smooth and easy and reliably circulate.And connector of the prior art is made up of metal (as copper alloy, aluminium alloy etc.) substantially, although electric conductivity is better, but the intensity of connector, especially thermal fatigue resistance is comparatively general, have a strong impact on the use of connector, greatly reduce service efficiency and the useful life of connector.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose the connector in the amplifier that a thermal fatigue resistance is good, intensity is high, service efficiency is high.
Above-mentioned purpose of the present invention is achieved through the following technical solutions: the connector in a kind of amplifier, described connector is by basal segment, interlude and linkage section composition, the bend that interlude is arranged by rectangular circular arc and the overstriking portion point being located at bend two ends form, the external diameter in overstriking portion is greater than the external diameter of bend, basal segment is made up of vertical portion and horizontal part and arranges in " 7 " font, horizontal part and interlude wherein an overstriking portion are connected, linkage section is made up of insertion section and extension, insertion section is provided with annulus with the junction of extension and the external diameter in the external diameter of annulus and overstriking portion is identical, another overstriking portion of extension and interlude is connected and the external diameter of the external diameter of extension and bend is identical, described connector is made up of three-dimensional network silicon nitride ceramics/tin-phosphor bronze composite material, described three layer by layer shape porous silicon nitride ceramic/tin-phosphor bronze composite material comprise volume percent content be 10-30% three shape porous silicon nitride ceramic and volume percent content are the tin-phosphor bronze of 70-90% layer by layer.
Connector employing three of the present invention layer by layer shape porous silicon carbide ceramic/tin-phosphor bronze composite material is made, three shape porous SiC ceramics and tin-phosphor bronze support frames each other layer by layer, give full play to the advantage of SiC ceramic and tin-phosphor bronze two class material, effectively improve the high strength of connector, high-temperature stability, mar proof, corrosion resistance etc.If the too high levels of silicon nitride ceramics in the composite, can increase the fragility of composite material, reduce the overall performance of composite material, if the content of silicon nitride ceramics is too low, the resistance to wear of composite material and resistance to elevated temperatures can not get improving.
In connector in above-mentioned amplifier, described three layer by layer shape silicon nitride ceramics comprise the intermediate layer between upper surface layer, undersurface layer and upper and lower surface layer, wherein upper surface layer and undersurface layer silicon nitride ceramics raw material composition (mass percent) be 90-95%Si 3n 4and 5-10%Y 2o 3, raw material composition (mass percent) of intermediate layer silicon nitride ceramics is 0.5-3%SiO 2, 0.5-1% carbon black, 2-6%Y 2o 3, surplus Si 3n 4.
The present invention is by changing Si in silicon nitride ceramics 3n 4with the relative amount of silicon dioxide and carbon dust, realize controlling the porosity, by changing intermediate layer Si 3n 4the content of crystal seed and interface layer are on the impact of layered porous silicon nitride ceramics sintering character, microstructure and mechanical property.Along with Si 3n 4the increase of seed count, shrinkage reduces gradually, and the porosity reduces gradually.Based on the technique of this kind of control porous silicon nitride porosity, preparation three shape porous silicon nitride ceramic layer by layer.Along with the Si in the raw material of intermediate layer 3n 4the increase gradually of content, shrinkage and the porosity of whole layered porous silicon nitride reduce gradually, and bending strength increases gradually.When intermediate layer differs larger with the shrinkage of superficial layer, although be that weak interface combines, the mechanical property of interface residual stress to layered porous silicon nitride produced is highly beneficial.When the shrinkage of intermediate layer and superficial layer and the porosity close to time, weak interface combines the mechanical property changing strong―binding interface into and be also conducive to improving layered porous silicon nitride ceramics.In a word, as the Si in intermediate layer 3n 4during changes of contents, layered porous silicon nitride ceramics all has higher mechanical property all the time.
Further preferably, the particle diameter of described carbon black is 60-80nm, SiO 2particle diameter be 0.1-0.5 μm, Y 2o 3particle diameter be 0.2-1.2 μm, Si 3n 4for the α-Si of α >95% 3n 4.
In connector in above-mentioned amplifier, described tin-phosphor bronze is made up of following composition (by percentage to the quality): Zn:2.7-3.3%, Sn:3.5-4.5%, P:0.01-0.03%, Fe:0.01-0.05%, Ni:0.5-1%, Si:0.05-0.1%, rare earth element: 0.1-0.5%, Pb < 0.02%, Al < 0.002%, Sb < 0.002%, Bi < 0.002%, surplus is Cu and inevitable impurity element.
In prior art, in Sn-P-Cu alloy, the content of Sn is greatly about 6-7%, and content is higher, the function admirables such as the intensity of alloy and elasticity, but due to Sn too high levels, and along with the increase of Sn content, the electric conductivity of alloy sharply declines.And along with the rising of temperature, the stress relaxation resistance of alloy also there will be decline.Therefore, the present invention, on the basis of existing Sn-P-Cu alloy, reduces the content of Sn element, makes alloy have excellent conductivity, stress relaxation-resistant ability etc.Meanwhile, the present invention is by the content of other element of adjustment.And with the addition of Zn, Ni, Si and rare earth element, to improve the mechanical performance such as intensity, hardness of Sn-P-Cu alloy.Because Zn solid solubility in Sn-P-Cu alloy is comparatively large, with the addition of Zn element, can play solution strengthening effect to Sn-P-Cu alloy in Sn-P-Cu alloy.And Ni element can put forward heavy alloyed intensity, toughness and stress corrosion dehiscence resistant ability.Si element also can put forward the performances such as heavy alloyed intensity, hardness.In addition, a small amount of Pb element existed in Si element and alloy can play synergy, can also reduce the friction factor of alloy.
Rare earth element then can make Sn-P-Cu alloy cast sturcture of the present invention dendrite grid attenuate little, the obvious refinement of grain structure after distortion annealing.And, add rare earth element and can also purify alloy, eliminate the illeffects of its impurity, and CuCeP intermetallic compound can be generated with copper, in point-like Dispersed precipitate at crystal boundary or intracrystalline, refinement alloy structure, can also significantly improve the dislocation density in alloy substrate, thus effectively improve the hardness of Sn-P-Cu alloy, enhance the resistance to wear of alloy.
In addition, compared with prior art, present invention reduces the content of P element, alloy can being avoided on the one hand easily segregation phenomena to occur when casting, affecting the performances such as plasticity.On the other hand, the Fe element of the trace existed in the P element of trace of the present invention and alloy, can form Fe 2p, while not falling low-alloyed conductivity, can also improve intensity and the stress relaxation resistance of alloy.
In connector in above-mentioned amplifier, the rare earth element described in tin-phosphor bronze is (1.3-1.5) by Ce and Sc in mass ratio: 1 forms.
In connector in above-mentioned amplifier, as preferably, described tin-phosphor bronze is grouped into by the one-tenth of following percentage by weight: Zn:2.8-3.2%, Sn:3.8-4.2%, P:0.015-0.025%, Fe:0.02-0.04%, Ni:0.6-0.8%, Si:0.06-0.08%, rare earth element: 0.2-0.4%, Pb < 0.02%, Al < 0.002%, Sb < 0.002%, Bi < 0.002%, surplus is Cu and inevitable impurity element.
In connector in above-mentioned amplifier, described three layer by layer shape porous silicon nitride ceramic/tin-phosphor bronze composite material obtain by the following method:
Press the feed proportioning described in upper surface layer, intermediate layer, undersurface layer respectively, respectively batching is utilized organic carrier dip forming and sinter 1-2h at the nitrogen pressure of 0.3-0.6MPa and 1680-1700 DEG C, respectively the dry powder of obtained upper surface layer, intermediate layer, undersurface layer;
The dry powder of obtained upper surface layer, intermediate layer, undersurface layer is applied successively and puts, finally make type at the pressure of 3-4MPa, obtain three shape porous silicon nitride ceramics layer by layer;
By three, shape porous silicon nitride ceramic and tin-phosphor bronze utilize vacuum-air pressure method for casting to make three shape porous silicon carbide ceramic/tin-phosphor bronze composite materials layer by layer layer by layer.
First make three shape porous silicon nitride ceramics layer by layer, again by tin-phosphor bronze introducing three layer by layer shape porous silicon nitride ceramic, make silicon nitride ceramics and tin-phosphor bronze support frame each other in the composite material obtained, give full play to the advantage of both materials, and improve the physical property such as hardness, resistance to wear, corrosion resistance of composite material further.
As preferably, the vacuum degree in vacuum-air pressure method for casting is 0.05-0.08MPa.
Three layer by layer shape porous silicon carbide ceramic/tin-phosphor bronze composite material namely be can be made into the connector in amplifier of the present invention by common moulding process, as forging molding, casting etc.
Compared with prior art, the present invention has following beneficial effect:
1, the connector in amplifier of the present invention by three layer by layer shape porous silicon carbide ceramic/tin-phosphor bronze composite material make, there is the advantage of three shape porous silicon carbide ceramic and tin-phosphor bronze bi-materials layer by layer simultaneously, by both proportionings, increase substantially electric conductivity and the heat conductivility of composite material, also effectively improve the high strength of connector, high-temperature stability, mar proof, corrosion resistance etc.
2, the present invention prepares three components of reasonable compatibility tin-phosphor bronze in shape porous silicon carbide ceramic/tin-phosphor bronze composite material layer by layer of connector, not only reduce the content of P, Sn element, and with the addition of Zn, Ni, Si and rare earth element, by the synergy between each element, as the synergy of a small amount of Pb element existed in Si element and alloy, reduce the friction factor of alloy; Rare earth element and copper generate CuCeP intermetallic compound, and the Fe element of P element and trace, can form Fe 2p etc., improves the conductivity of Sn-P-Cu alloy while not falling the mechanical performances such as low-alloyed intensity, hardness, improves the intensity of connector, wear-resisting, thermal fatigue resistance, stress relaxation resistance etc. further, and then improves the service efficiency of connector.
3, the present invention prepares the preparation method of three shape porous silicon carbide ceramic/tin-phosphor bronze composite materials layer by layer of connector for first making three shape porous silicon nitride ceramics layer by layer, again by tin-phosphor bronze introducing three layer by layer shape porous silicon nitride ceramic, make silicon nitride ceramics and tin-phosphor bronze support frame each other in the composite material obtained, give full play to the advantage of both materials, and improve the physical property such as hardness, resistance to wear, corrosion resistance of composite material further.
Accompanying drawing explanation
Fig. 1 is the structural representation of the connector in amplifier of the present invention.
Fig. 2 is the right view of the connector in amplifier of the present invention.
In figure, 1, basal segment; 2, interlude; 21, bend; 22, overstriking portion; 3, linkage section; 31, insertion section; 32, extension; 33, annulus.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figure 1-2, the present invention is used for the connector of amplifier, described connector is by basal segment 1, interlude 2 and linkage section 3 form, the bend 21 that interlude 2 is arranged by rectangular circular arc and the overstriking portion 22 point being located at bend two ends form, the external diameter in overstriking portion 21 is greater than the external diameter of bend 21, basal segment 1 is made up of vertical portion and horizontal part and arranges in " 7 " font, horizontal part and interlude wherein an overstriking portion are connected, linkage section 3 is made up of insertion section 31 and extension 32, insertion section 31 is provided with annulus 33 with the junction of extension 32 and the external diameter in the external diameter of annulus and overstriking portion 22 is identical, another overstriking portion of extension 32 and interlude is connected and the external diameter of the external diameter of extension and bend 21 is identical.
Connector of the present invention is made up of three-dimensional network silicon nitride ceramics/tin-phosphor bronze composite material, described three layer by layer shape porous silicon nitride ceramic/tin-phosphor bronze composite material comprise volume percent content be 10-30% three shape porous silicon nitride ceramic and volume percent content are the tin-phosphor bronze of 70-90% layer by layer.
Described three layer by layer shape silicon nitride ceramics comprise the intermediate layer between upper surface layer, undersurface layer and upper and lower surface layer, wherein upper surface layer and undersurface layer silicon nitride ceramics raw material composition (mass percent) be 90-95%Si 3n 4and 5-10%Y 2o 3, raw material composition (mass percent) of intermediate layer silicon nitride ceramics is 0.5-3%SiO 2, 0.5-1% carbon black, 2-6%Y 2o 3, surplus Si 3n 4.
As preferably, the particle diameter of described carbon black is 60-80nm, SiO 2particle diameter be 0.1-0.5 μm, Y 2o 3particle diameter be 0.2-1.2 μm, Si 3n 4for the α-Si of α >95% 3n 4.
Described tin-phosphor bronze is made up of following composition (by percentage to the quality): Zn:2.7-3.3%, Sn:3.5-4.5%, P:0.01-0.03%, Fe:0.01-0.05%, Ni:0.5-1%, Si:0.05-0.1%, rare earth element: 0.1-0.5%, Pb < 0.02%, Al < 0.002%, Sb < 0.002%, Bi < 0.002%, surplus is Cu and inevitable impurity element.
As preferably, described rare earth element is (1.3-1.5) by Ce and Sc in mass ratio: 1 forms.
As preferably, described tin-phosphor bronze is grouped into by the one-tenth of following percentage by weight: Zn:2.8-3.2%, Sn:3.8-4.2%, P:0.015-0.025%, Fe:0.02-0.04%, Ni:0.6-0.8%, Si:0.06-0.08%, rare earth element: 0.2-0.4%, Pb < 0.02%, Al < 0.002%, Sb < 0.002%, Bi < 0.002%, surplus is Cu and inevitable impurity element.
Described three layer by layer shape porous silicon nitride ceramic/tin-phosphor bronze composite material obtain by the following method:
Press the feed proportioning described in upper surface layer, intermediate layer, undersurface layer respectively, respectively batching is utilized organic carrier dip forming and sinter 1-2h at the nitrogen pressure of 0.3-0.6MPa and 1680-1700 DEG C, respectively the dry powder of obtained upper surface layer, intermediate layer, undersurface layer;
The dry powder of obtained upper surface layer, intermediate layer, undersurface layer is applied successively and puts, finally make type at the pressure of 3-4MPa, obtain three shape porous silicon nitride ceramics layer by layer;
By three, shape porous silicon nitride ceramic and tin-phosphor bronze utilize vacuum-air pressure method for casting to make three shape porous silicon carbide ceramic/tin-phosphor bronze composite materials layer by layer layer by layer.
Embodiment 1
Respectively by the feed proportioning described in upper surface layer, intermediate layer, undersurface layer: raw material composition (mass percent) of upper surface layer and undersurface layer silicon nitride ceramics is 92%Si 3n 4and 8%Y 2o 3, raw material composition (mass percent) of intermediate layer silicon nitride ceramics is 1.8%SiO 2, 0.8% carbon black, 4%Y 2o 3, surplus Si 3n 4; The particle diameter of described carbon black is 60-80nm, SiO 2particle diameter be 0.1-0.5 μm, Y 2o 3particle diameter be 0.2-1.2 μm, Si 3n 4for the α-Si of α >95% 3n 4.
Respectively batching is utilized organic carrier dip forming and sinter 1.5h at the nitrogen pressure of 0.4MPa and 1690 DEG C, respectively the dry powder of obtained upper surface layer, intermediate layer, undersurface layer.
The dry powder of obtained upper surface layer, intermediate layer, undersurface layer is applied successively and puts, finally make type at the pressure of 3.5MPa, obtain three shape porous silicon nitride ceramics layer by layer.
By three shape porous silicon nitride ceramic and tin-phosphor bronze (constituents by weight percentage: Zn:3.0% layer by layer, Sn:4.0%, P:0.02%, Fe:0.03%, Ni:0.7%, Si:0.07%, rare earth element: 0.3%, Pb < 0.02%, Al < 0.002%, Sb < 0.002%, Bi < 0.002%, surplus is Cu and inevitable impurity element, its rare earth elements by Ce and Sc in mass ratio for 1.4:1 forms) utilize vacuum-air pressure casting (vacuum degree is 0.06MPa) method to make three shape porous silicon carbide ceramic/tin-phosphor bronze composite materials (in composite material, the percent by volume of three shape porous silicon nitride ceramic and Sn-P-Cu alloys is layer by layer respectively 20% and 80%) layer by layer.
By common forging molding process by three layer by layer shape porous silicon carbide ceramic/tin-phosphor bronze composite material make the connector in amplifier of the present invention.
Embodiment 2
Respectively by the feed proportioning described in upper surface layer, intermediate layer, undersurface layer: raw material composition (mass percent) of upper surface layer and undersurface layer silicon nitride ceramics is 94%Si 3n 4and 6%Y 2o 3, raw material composition (mass percent) of intermediate layer silicon nitride ceramics is 1.0%SiO 2, 0.9% carbon black, 5%Y 2o 3, surplus Si 3n 4; The particle diameter of described carbon black is the particle diameter of 60-80nm, SiO2 is 0.1-0.5 μm, Y 2o 3particle diameter be 0.2-1.2 μm, Si 3n 4for the α-Si of α >95% 3n 4.
Respectively batching is utilized organic carrier dip forming and sinter 1h at the nitrogen pressure of 0.5MPa and 1710 DEG C, respectively the dry powder of obtained upper surface layer, intermediate layer, undersurface layer.
The dry powder of obtained upper surface layer, intermediate layer, undersurface layer is applied successively and puts, finally make type at the pressure of 4MPa, obtain three shape porous silicon nitride ceramics layer by layer.
By three shape porous silicon nitride ceramic and tin-phosphor bronze (constituents by weight percentage: Zn:2.8% layer by layer, Sn:4.2%, P:0.015%, Fe:0.04%, Ni:0.6%, Si:0.08%, rare earth element: 0.2%, Pb < 0.02%, Al < 0.002%, Sb < 0.002%, Bi < 0.002%, surplus is Cu and inevitable impurity element, its rare earth elements by Ce and Sc in mass ratio for 1.4:1 forms) utilize vacuum-air pressure casting (vacuum degree is 0.055MPa) method to make three shape porous silicon carbide ceramic/tin-phosphor bronze composite materials (in composite material, the percent by volume of three shape porous silicon nitride ceramic and Sn-P-Cu alloys is layer by layer respectively 15% and 85%) layer by layer.
By common forging molding process by three layer by layer shape porous silicon carbide ceramic/tin-phosphor bronze composite material make the connector in amplifier of the present invention.
Embodiment 3
Respectively by the feed proportioning described in upper surface layer, intermediate layer, undersurface layer: raw material composition (mass percent) of upper surface layer and undersurface layer silicon nitride ceramics is 93%Si 3n 4and 7%Y 2o 3, raw material composition (mass percent) of intermediate layer silicon nitride ceramics is 2.5%SiO 2, 0.6% carbon black, 2%Y 2o 3, surplus Si 3n 4; The particle diameter of described carbon black is 60-80nm, SiO 2particle diameter be 0.1-0.5 μm, Y 2o 3particle diameter be 0.2-1.2 μm, Si 3n 4for the α-Si of α >95% 3n 4.
Respectively batching is utilized organic carrier dip forming and sinter 2h at the nitrogen pressure of 0.5MPa and 1715 DEG C, respectively the dry powder of obtained upper surface layer, intermediate layer, undersurface layer.
The dry powder of obtained upper surface layer, intermediate layer, undersurface layer is applied successively and puts, finally make type at the pressure of 3MPa, obtain three shape porous silicon nitride ceramics layer by layer.
By three shape porous silicon nitride ceramic and tin-phosphor bronze (constituents by weight percentage: Zn:3.2% layer by layer, Sn:3.8%, P:0.025%, Fe:0.02%, Ni:0.8%, Si:0.06%, rare earth element: 0.4%, Pb < 0.02%, Al < 0.002%, Sb < 0.002%, Bi < 0.002%, surplus is Cu and inevitable impurity element, its rare earth elements by Ce and Sc in mass ratio for 1.4:1 forms) utilize vacuum-air pressure casting (vacuum degree is 0.07MPa) method to make three shape porous silicon carbide ceramic/tin-phosphor bronze composite materials (in composite material, the percent by volume of three shape porous silicon nitride ceramic and Sn-P-Cu alloys is layer by layer respectively 25% and 75%) layer by layer.
By common cast shaping process by three layer by layer shape porous silicon carbide ceramic/tin-phosphor bronze composite material make the connector in amplifier of the present invention.
Embodiment 4
Respectively by the feed proportioning described in upper surface layer, intermediate layer, undersurface layer: raw material composition (mass percent) of upper surface layer and undersurface layer silicon nitride ceramics is 95%Si 3n 4and 5%Y 2o 3, raw material composition (mass percent) of intermediate layer silicon nitride ceramics is 3%SiO 2, 0.5% carbon black, 6%Y 2o 3, surplus Si 3n 4; The particle diameter of described carbon black is 60-80nm, SiO 2particle diameter be 0.1-0.5 μm, Y 2o 3particle diameter be 0.2-1.2 μm, Si 3n 4for the α-Si of α >95% 3n 4.
Respectively batching is utilized organic carrier dip forming and sinter 1h at the nitrogen pressure of 0.6MPa and 1730 DEG C, respectively the dry powder of obtained upper surface layer, intermediate layer, undersurface layer.
The dry powder of obtained upper surface layer, intermediate layer, undersurface layer is applied successively and puts, finally make type at the pressure of 4MPa, obtain three shape porous silicon nitride ceramics layer by layer.
By three shape porous silicon nitride ceramic and tin-phosphor bronze (constituents by weight percentage: Zn:2.7% layer by layer, Sn:4.5%, P:0.01%, Fe:0.05%, Ni:0.5-1%, Si:0.05%, rare earth element: 0.5%, Pb < 0.02%, Al < 0.002%, Sb < 0.002%, Bi < 0.002%, surplus is Cu and inevitable impurity element, its rare earth elements by Ce and Sc in mass ratio for 1.5:1 forms) utilize vacuum-air pressure casting (vacuum degree is 0.08MPa) method to make three shape porous silicon carbide ceramic/tin-phosphor bronze composite materials (in composite material, the percent by volume of three shape porous silicon nitride ceramic and Sn-P-Cu alloys is layer by layer respectively 10% and 90%) layer by layer.
By common forging molding process by three layer by layer shape porous silicon carbide ceramic/tin-phosphor bronze composite material make the connector in amplifier of the present invention.
Embodiment 5
Respectively by the feed proportioning described in upper surface layer, intermediate layer, undersurface layer: raw material composition (mass percent) of upper surface layer and undersurface layer silicon nitride ceramics is 90%Si 3n 4and 10%Y 2o 3, raw material composition (mass percent) of intermediate layer silicon nitride ceramics is 0.5%SiO 2, 1% carbon black, 2%Y 2o 3, surplus Si 3n 4; The particle diameter of described carbon black is 60-80nm, SiO 2particle diameter be 0.1-0.5 μm, Y 2o 3particle diameter be 0.2-1.2 μm, Si 3n 4for the α-Si of α >95% 3n 4.
Respectively batching is utilized organic carrier dip forming and sinter 2h at the nitrogen pressure of 0.3MPa and 1700 DEG C, respectively the dry powder of obtained upper surface layer, intermediate layer, undersurface layer.
The dry powder of obtained upper surface layer, intermediate layer, undersurface layer is applied successively and puts, finally make type at the pressure of 3MPa, obtain three shape porous silicon nitride ceramics layer by layer.
By three shape porous silicon nitride ceramic and tin-phosphor bronze (constituents by weight percentage: Zn:3.3% layer by layer, Sn:3.5%, P:0.03%, Fe:0.01%, Ni:1%, Si:0.05%, rare earth element: 0.5%, Pb < 0.02%, Al < 0.002%, Sb < 0.002%, Bi < 0.002%, surplus is Cu and inevitable impurity element, rare earth element wherein described in tin-phosphor bronze by Ce and Sc in mass ratio for 1.3:1 forms) utilize vacuum-air pressure casting (vacuum degree is 0.05MPa) method to make three shape porous silicon carbide ceramic/tin-phosphor bronze composite materials (in composite material, the percent by volume of three shape porous silicon nitride ceramic and Sn-P-Cu alloys is layer by layer respectively 30% and 70%) layer by layer.
By common cast shaping process by three layer by layer shape porous silicon carbide ceramic/tin-phosphor bronze composite material make the connector in amplifier of the present invention.
Comparative example 1
This comparative example 1 is the connector on market in common commercially available amplifier.
Comparative example 2
This comparative example 2 is the connector in the amplifier that adopts the tin-phosphor bronze described in embodiment 1 and make.
Connector in amplifier in embodiment 1-5 and in comparative example 1-2 is carried out performance test, and test result is as shown in table 1.
Table 1: the performance test results of the connector in the amplifier in embodiment 1-5 and in comparative example 1-2
In sum, connector in amplifier of the present invention by three layer by layer shape porous silicon carbide ceramic/tin-phosphor bronze composite material make, there is higher mechanical property, as high strength, high-temperature stability, mar proof, corrosion resistance etc., also there are good conductivity, thermal fatigue resistance etc.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.

Claims (8)

1. the connector in an amplifier, it is characterized in that, described connector is by basal segment, interlude and linkage section composition, the bend that interlude is arranged by rectangular circular arc and the overstriking portion point being located at bend two ends form, the external diameter in overstriking portion is greater than the external diameter of bend, basal segment is made up of vertical portion and horizontal part and arranges in " 7 " font, horizontal part and interlude wherein an overstriking portion are connected, linkage section is made up of insertion section and extension, insertion section is provided with annulus with the junction of extension and the external diameter in the external diameter of annulus and overstriking portion is identical, another overstriking portion of extension and interlude is connected and the external diameter of the external diameter of extension and bend is identical, described connector is made up of three-dimensional network silicon nitride ceramics/tin-phosphor bronze composite material, described three layer by layer shape porous silicon nitride ceramic/tin-phosphor bronze composite material comprise volume percent content be 10-30% three shape porous silicon nitride ceramic and volume percent content are the tin-phosphor bronze of 70-90% layer by layer.
2. the connector in a kind of amplifier according to claim 1, it is characterized in that, described three layer by layer shape silicon nitride ceramics comprise the intermediate layer between upper surface layer, undersurface layer and upper and lower surface layer, wherein upper surface layer and undersurface layer silicon nitride ceramics raw material composition (mass percent) be 90-95%Si 3n 4and 5-10%Y 2o 3, raw material composition (mass percent) of intermediate layer silicon nitride ceramics is 0.5-3%SiO 2, 0.5-1% carbon black, 2-6%Y 2o 3, surplus Si 3n 4.
3. the connector in a kind of amplifier according to claim 2, is characterized in that, the particle diameter of described carbon black is 60-80nm, SiO 2particle diameter be 0.1-0.5 μm, Y 2o 3particle diameter be 0.2-1.2 μm, Si 3n 4for the α-Si of α >95% 3n 4.
4. the connector in a kind of amplifier according to claim 1, it is characterized in that, described tin-phosphor bronze is made up of following composition (by percentage to the quality): Zn:2.7-3.3%, Sn:3.5-4.5%, P:0.01-0.03%, Fe:0.01-0.05%, Ni:0.5-1%, Si:0.05-0.1%, rare earth element: 0.1-0.5%, Pb < 0.02%, Al < 0.002%, Sb < 0.002%, Bi < 0.002%, surplus is Cu and inevitable impurity element.
5. the connector in a kind of amplifier according to claim 4, it is characterized in that, described tin-phosphor bronze is grouped into by the one-tenth of following percentage by weight: Zn:2.8-3.2%, Sn:3.8-4.2%, P:0.015-0.025%, Fe:0.02-0.04%, Ni:0.6-0.8%, Si:0.06-0.08%, rare earth element: 0.2-0.4%, Pb < 0.02%, Al < 0.002%, Sb < 0.002%, Bi < 0.002%, surplus is Cu and inevitable impurity element.
6. the connector in a kind of amplifier according to claim 4 or 5, is characterized in that, the rare earth element described in tin-phosphor bronze is (1.3-1.5) by Ce and Sc in mass ratio: 1 forms.
7. the connector in a kind of amplifier according to any one of claim 1-6, is characterized in that, described three layer by layer shape porous silicon nitride ceramic/tin-phosphor bronze composite material obtain by the following method:
Press the feed proportioning described in upper surface layer, intermediate layer, undersurface layer respectively, respectively batching is utilized organic carrier dip forming and sinter 1-2h at the nitrogen pressure of 0.3-0.6MPa and 1680-1700 DEG C, respectively the dry powder of obtained upper surface layer, intermediate layer, undersurface layer;
The dry powder of obtained upper surface layer, intermediate layer, undersurface layer is applied successively and puts, finally make type at the pressure of 3-4MPa, obtain three shape porous silicon nitride ceramics layer by layer;
By three, shape porous silicon nitride ceramic and tin-phosphor bronze utilize vacuum-air pressure method for casting to make three shape porous silicon carbide ceramic/tin-phosphor bronze composite materials layer by layer layer by layer.
8. the connector in a kind of amplifier according to claim 7, is characterized in that, the vacuum degree in vacuum-air pressure method for casting is 0.05-0.08MPa.
CN201510823790.8A 2015-11-24 2015-11-24 Connector in amplifier Withdrawn CN105428863A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0999611A1 (en) * 1998-11-04 2000-05-10 Japan Aviation Electronics Industry, Limited Multi-coaxial connector having a metallic block connected in common to outer conductors of a plurality of coaxial cables
CN104779464A (en) * 2015-04-14 2015-07-15 四川华丰企业集团有限公司 Metal brazing sealing type airtight electric connector and manufacturing process thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0999611A1 (en) * 1998-11-04 2000-05-10 Japan Aviation Electronics Industry, Limited Multi-coaxial connector having a metallic block connected in common to outer conductors of a plurality of coaxial cables
CN104779464A (en) * 2015-04-14 2015-07-15 四川华丰企业集团有限公司 Metal brazing sealing type airtight electric connector and manufacturing process thereof

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