CN107267795A - A kind of high conductivity silver-based melt material and its method of smelting - Google Patents

A kind of high conductivity silver-based melt material and its method of smelting Download PDF

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Publication number
CN107267795A
CN107267795A CN201710469251.8A CN201710469251A CN107267795A CN 107267795 A CN107267795 A CN 107267795A CN 201710469251 A CN201710469251 A CN 201710469251A CN 107267795 A CN107267795 A CN 107267795A
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China
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silver
alloy
melt
graphene
conductivity
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CN201710469251.8A
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Chinese (zh)
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CN107267795B (en
Inventor
王星星
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华北水利水电大学
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C5/00Alloys based on noble metals
    • C22C5/06Alloys based on silver
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/10Alloys containing non-metals
    • C22C1/1036Alloys containing non-metals starting from a melt
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02Details
    • H01H85/04Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/05Component parts thereof
    • H01H85/055Fusible members
    • H01H85/06Fusible members characterised by the fusible material
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/10Alloys containing non-metals
    • C22C1/1036Alloys containing non-metals starting from a melt
    • C22C2001/1047Alloys containing non-metals starting from a melt by mixing and casting liquid metal matrix composites

Abstract

The invention discloses a kind of high conductivity silver-based melt material, formed by silver or the parts by weight of silver alloy 92 ~ 101, the parts by weight of silver-based graphene 2 ~ 12 and micro- 0.5 ~ 1.5 parts by weight melting:Each raw material of precise first;Use vacuum smelting furnace by silver-based graphene and the silver of 35 ~ 40% consumptions or silver alloy melting for alloy material A1;Then it is alloy material A2 by micro- and remaining silver or silver alloy melting;The alloy material A1 of fusing is finally added to the silver-base alloy that molten state is obtained in the alloy material A2 of fusing, the silver-base alloy of molten state is processed according to a conventional method and can obtain thread or banding melt material.The silver-base alloy melt material of the graphene-containing that melting of the present invention is obtained is nontoxic, environmental protection, fusion temperature is moderate, wetability is good, electric conductivity is strong, with excellent mechanical property, use it for electrovacuum field, it can ensure that vacuum system and vacuum component have high cleanliness factor, widen its application.

Description

A kind of high conductivity silver-based melt material and its method of smelting

Technical field

The present invention relates to metal material, more particularly, to the fuse that short-circuit and overcurrent protection is used as in electrical equipment High conductivity silver-based melt material, the invention further relates to the method for smelting of the high conductivity silver-based melt material.

Background technology

In high and low pressure distribution system and control system and electrical equipment, fuse is used as short circuit and the guarantor of overcurrent Device is protected, is using one of most common protection device.In general, fuse is mainly by melt, shell and the part group of bearing three Into wherein melt is the key element for controlling operating chacteristics.

Material, the size and dimension of melt determine the operating chacteristics of fuse.And melt material is broadly divided into low melting point With the class of high-melting-point two.Low melting material such as lead and metal, the low easy fusing of its fusing point, because its resistivity is larger, therefore are made The sectional dimension of melt is larger, and the metal vapors produced during fusing is more, is only applicable to the fuse of low breaking capacity;High-melting-point Material is mainly the non-ferrous metal such as noble metal and copper, nickel such as silver, gold, palladium, the electric conductivity such as pure metallic silver, gold, palladium, copper preferably, but Its fusing point is high, it is not easy to fuses, because resistivity is relatively low, can be made into sectional dimension more less than low fusing point melt material, fuses When the metal vapors that produces it is few, it is adaptable to the fuse of high breaking capacity, but deposited in terms of applying stability and high electric conductivity There is certain limitation.

In recent years, China's power consumption is substantially improved, and high and low pressure distribution system and control system and electrical equipment are wanted More and more higher is sought, therefore, the key element to controlling operating chacteristics in fuse --- the quality and performance of melt material are proposed Requirements at the higher level.But traditional low fusing point melt material lead and its alloy are used by limitation because poisonous, and it is dystectic Silver, Cu alloy material are in terms of electric conductivity and fusing stability again with certain limitation.

It is current most thin, intensity highest to be referred to as " dark fund ", the graphene of " king of new material ", and electric conductivity is most strong, lead A kind of hot best novel nano-material.The resistivity of graphene about 10-6Ω cm, it is lower than silver or copper, it is electric in the world The minimum material of resistance rate, i.e. electric conductivity most strong material, if using it for melt alloy Material Field, are expected to overcome existing The deficiency of melt material, develops the melt alloy of Novel high-conductivity performance.

The content of the invention

It is an object of the invention to provide a kind of fusion temperature is moderate, excellent in mechanical performance, wettability are good contains stone The high conductivity silver-based melt material of black alkene, the present invention also provides the method for smelting of the high conductivity silver-based melt material.

To achieve the above object, the present invention can take following technical proposals:

High conductivity silver-based melt material of the present invention, is pressed by silver or silver alloy, silver-based graphene and trace element Weight melting is stated to form:

92 ~ 101 parts of silver or silver alloy, 2 ~ 12 parts of silver-based graphene, 0.5 ~ 1.5 part of trace element.

The silver alloy is made up of silver with any one in copper, nickel, manganese, palladium or two kinds and above element.

The trace element is made up of any two kinds in rubidium, indium, yttrium.

The method of smelting of high conductivity silver-based melt material of the present invention is:Each raw material of precise in proportion first;Using Silver-based graphene and the silver of 35 ~ 40% consumptions or silver alloy melting are alloy material A1 by vacuum smelting furnace;Then by trace element It is alloy material A2 with remaining silver or silver alloy melting;The alloy material A1 of fusing is finally added to the alloy material of fusing The silver-base alloy of molten state is obtained in A2, the silver-base alloy of molten state is processed according to a conventional method and obtains thread or banding melt material Material.

During actual melting, the silver or silver alloy ratio shared in alloy material A1 is 37.5%, in alloy material A2 In shared ratio best results when being 62.5%.

Such as molten state silver-base alloy is cast or horizontal casting, extruding, drawing, you can obtain required silver-base alloy bar (Silk material);And first extrude ingot casting for band, after roughing, finish rolling, you can be prepared into silver-base alloy strip material(Foil).

Advantages of the present invention be embodied in it is following some:

1st, the silver-base alloy melt material for the graphene-containing that melting is obtained is nontoxic, environmental protection, and fusion temperature is moderate, wetting Property is good, and electric conductivity is strong(Electric conductivity than fine silver is also strong);By the ratio of optimization element used, melt the silver-based that the present invention is obtained Body material can also be prepared into the foil of various thickness and widths in addition to it can be prepared as silk material;

2nd, " king of new material " graphene is introduced melt material field by the present invention, best by adding electric conductivity in fine silver Graphene, while adding the trace elements such as rubidium, indium, yttrium, can cooperate with the electric conductivity for improving melt material silver-base alloy, also simultaneously Ensure that silver-based melt material has excellent mechanical property;

3rd, the present invention effectively controls distribution and the content of graphene by silver-based graphene, solves graphene in alloy melting During float it is indefinite, it is impossible to the problem of accurate control graphene content and skewness.

4th, the silver-based melt alloy quality better purity that the present invention is developed is high, does not contain the element of vapo(u)rability(Such as Zn, P, Sn Deng), use it for electrovacuum field, it is ensured that vacuum system and vacuum component have high cleanliness factor, widened its application Scope.

Embodiment

More detailed explanation is done to the present invention below by specific embodiment.

Embodiment 1

The high conductivity silver-based melt material of the present invention, is by silver-colored 92kg, the kg of silver-based graphene 12, the kg of rubidium 0.2, the kg of indium 0.3 Melting is formed:

Use vacuum smelting furnace by 12 kg silver-based graphene and 34.5 kg silver-colored melting for alloy material A1 first;Then will Rubidium 0.2 kg, the kg of indium 0.3 are alloy material A2 with the silver-colored meltings of remaining 57.5 kg;Finally the alloy material A1 of fusing is added The silver-base alloy of molten state is obtained into the alloy material A2 of fusing, by the casting of the silver-base alloy of molten state or horizontal casting, is squeezed Pressure, drawing, obtain the thread silver-based melt alloy of high conductivity, and the melt alloy has higher electric conductivity(Than leading for fine silver Electrically also it is eager to excel, during 20 DEG C of fine silver, resistivity minimum 15.62 × 10-6Ω·mm), moderate fusion temperature and excellent mechanics Performance, its technical indicator see the table below 1.

Embodiment 2

The high conductivity silver-based melt material of the present invention, is by silver-colored 101kg, the kg of silver-based graphene 2, the kg of rubidium 0.3, the kg of yttrium 0.2 Melting is formed:

Use vacuum smelting furnace by 2 kg silver-based graphene and 37.8 kg silver-colored melting for alloy material A1 first;Then will Rubidium 0.3kg, the kg of yttrium 0.2 and remaining 63.2kg silver melting are alloy material A2;Finally the alloy material A1 of fusing is added to The silver-base alloy of molten state is obtained in the alloy material A2 of fusing, the silver-base alloy of molten state is cast into ingot casting, ingot casting is first squeezed Press as band, after roughing, finish rolling, obtain the banding silver-based melt alloy of high conductivity, the melt alloy has higher lead Electrically(Electric conductivity than fine silver is also eager to excel, during 20 DEG C of fine silver, resistivity minimum 15.62 × 10-6Ω·mm), moderate fusing Temperature and excellent mechanical property, its technical indicator see the table below 1.

Embodiment 3

The high conductivity silver-based melt material of the present invention, is silver-based graphene 2 kg by silver-colored 92kg, and indium 0.5kg, yttrium 1.0kg is pressed The method melting of embodiment 1 is formed, and the melt alloy has higher electric conductivity(Electric conductivity than fine silver is also eager to excel), it is moderate Fusion temperature and excellent mechanical property, its technical indicator see the table below 1.

Embodiment 4

The high conductivity silver-based melt material of the present invention, is by silver-colored 96.5kg, the kg of silver-based graphene 7, rubidium 0.5 kg, yttrium 0.5kg Melting is formed as described in Example 1, and the melt alloy has higher electric conductivity(Electric conductivity than fine silver is also eager to excel), it is moderate Fusion temperature and excellent mechanical property, its technical indicator see the table below 1.

Embodiment 5

The high conductivity silver-based melt material of the present invention, is by yellow gold 98kg, silver-based graphene 5 kg, indium 0.4kg, yttrium Melting is formed 0.6kg as described in Example 1, and the melt alloy has higher electric conductivity(Electric conductivity than fine silver will also By force), moderate fusion temperature and excellent mechanical property, its technical indicator see the table below 1.

Embodiment 6

The present invention high conductivity silver-based melt material, be by the kg of silver-nickel 95, the kg of silver-based graphene 8.5, the kg of indium 0.8, Melting is formed the kg of rubidium 0.2 as described in Example 1, and the melt alloy has higher electric conductivity(Electric conductivity than fine silver will also By force), moderate fusion temperature and excellent mechanical property, its technical indicator see the table below 1.

Embodiment 7

The high conductivity silver-based melt material of the present invention, is by the kg of silver-bearing copper nickel alloy 100, the kg of silver-based graphene 3, yttrium 0.1 Melting is formed as described in Example 1 by kg, the kg of rubidium 0.9, and the melt alloy has higher electric conductivity(Than the electric conductivity of fine silver Also it is eager to excel), moderate fusion temperature and excellent mechanical property, its technical indicator see the table below 1.

Embodiment 8

The high conductivity silver-based melt material of the present invention, is by the kg of silver-bearing copper manganese alloy 94, the kg of silver-based graphene 10, yttrium 0.4 Melting is formed as described in Example 1 by kg, the kg of rubidium 0.1, and the melt alloy has higher electric conductivity(Than the electric conductivity of fine silver Also it is eager to excel), moderate fusion temperature and excellent mechanical property, its technical indicator see the table below 1.

Embodiment 9

The high conductivity silver-based melt material of the present invention, is by the kg of silver-bearing copper nickel-manganese 97, the kg of silver-based graphene 4, indium 0.2 Melting is formed as described in Example 1 by kg, the kg of rubidium 0.8, and the melt alloy has higher electric conductivity(Than the electric conductivity of fine silver Also it is eager to excel), moderate fusion temperature and excellent mechanical property, its technical indicator see the table below 1.

Embodiment 10

The high conductivity silver-based melt material of the present invention, is by silver-bearing copper nickel manganese palldium alloy 94.5 kg, the kg of silver-based graphene 9, indium Melting is formed as described in Example 1 by 0.7 kg, the kg of rubidium 0.3, and the melt alloy has higher electric conductivity(Than leading for fine silver Electrically also it is eager to excel), moderate fusion temperature and excellent mechanical property, its technical indicator see the table below 1.

Embodiment 11(Comparative example)

A kind of high conductivity silver-based melt material, is that the kg of indium 0.3 is by real by silver-colored 92kg, silver-based graphene 15kg, the kg of rubidium 0.2 The method melting for applying example 1 is formed, and obtained melt alloy has moderate fusion temperature, but because silver-based graphene content is inclined High so that the mechanical property and electric conductivity of melt material deteriorate, its technical indicator see the table below 1.

Embodiment 12(Comparative example)

A kind of high conductivity silver-based melt material, is pressed by silver-colored 101kg, the kg of silver-based graphene 1.0, the kg of rubidium 0.3, the kg of yttrium 0.2 The method melting of embodiment 1 is formed, and obtained melt alloy has moderate fusion temperature, but because silver-based graphene content is inclined Low so that the mechanical property and electric conductivity of melt material deteriorate, its technical indicator see the table below 1.

Embodiment 13(Comparative example)

A kind of high conductivity silver-based melt material, is that the kg of indium 0.1 is by real by silver-colored 92kg, silver-based graphene 12kg, the kg of rubidium 0.2 The method melting for applying example 1 is formed, and obtained melt alloy has moderate fusion temperature, but because micronutrient levels is relatively low, So that the electric conductivity of melt material is deteriorated, its technical indicator see the table below 1.

Embodiment 14(Comparative example)

A kind of high conductivity silver-based melt material, is indium 0.8 kg by silver-colored 101kg, the kg of silver-based graphene 2.0, and yttrium 1.2kg is pressed The method melting of embodiment 1 is formed, and obtained melt alloy has moderate fusion temperature, but because micronutrient levels is inclined High so that the electric conductivity of melt material is deteriorated, its technical indicator see the table below 1.

Table 1

From above-described embodiment(Including comparative example)In it can be seen that:When adding a certain proportion of silver-based graphite in silver-base alloy Alkene, and when adding any two kinds in a certain proportion of rubidium, indium, yttrium trace element simultaneously, silver-base alloy has good conductive Performance.If the ratio of trace element is not in the range of 0.5 ~ 1.5 part, the electric conductivity of silver-base alloy at least declines 6.5%;Enter One step research is found, when the parts by weight of graphene are less than 2 or higher than 12, can produce unfavorable shadow to the mechanical property of melt material Ring.

Therefore, the addition of control graphene is one of key point of the present invention, while when adding graphene, it is necessary to simultaneously The appropriate trace element of addition(Rubidium, indium, yttrium), just can guarantee that the electric conductivity for the silver-based solution material that melting is obtained is performed to most It is good.

Claims (5)

1. a kind of high conductivity silver-based melt material, it is characterised in that:It is by silver or silver alloy, silver-based graphene and trace element Formed by following weight meltings:
92 ~ 101 parts of silver or silver alloy, 2 ~ 12 parts of silver-based graphene, 0.5 ~ 1.5 part of trace element.
2. high conductivity silver-based melt material according to claim 1, it is characterised in that:The silver alloy be by silver with Any one in copper, nickel, manganese, palladium or two kinds and above element composition.
3. high conductivity silver-based melt material according to claim 1, it is characterised in that:It is described trace element by rubidium, indium, Any two kinds of compositions in yttrium.
4. the method for smelting of the high conductivity silver-based melt material described in claim 1 is:Each original of precise in proportion first Material;Use vacuum smelting furnace by silver-based graphene and the silver of 35 ~ 40% consumptions or silver alloy melting for alloy material A1;Then will Micro- is alloy material A2 with remaining silver or silver alloy melting;The alloy material A1 of fusing is finally added to fusing The silver-base alloy of molten state is obtained in alloy material A2, the silver-base alloy of molten state is processed according to a conventional method and obtains thread or band Shape melt material.
5. the method for smelting of high conductivity silver-based melt material according to claim 4, it is characterised in that:The silver or silver Alloy ratio shared in alloy material A1 is 37.5%, and shared ratio is 62.5% in alloy material A2.
CN201710469251.8A 2017-06-20 2017-06-20 High-conductivity silver-based melt material and smelting method thereof CN107267795B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001176912A (en) * 1999-12-16 2001-06-29 Noge Denki Kogyo:Kk Silver wire bonding wire filmed with gold
WO2008149666A1 (en) * 2007-06-07 2008-12-11 Tanaka Kikinzoku Kogyo K.K. Method for production of electric contact material, electric contact material, and thermal fuse
JP2011137198A (en) * 2009-12-28 2011-07-14 Tokuriki Honten Co Ltd Electrode material and method for manufacturing the same
CN105428097A (en) * 2015-12-24 2016-03-23 济南大学 Silver-based electrical contact composite material and preparation method therefor
CN106711117A (en) * 2017-01-24 2017-05-24 山东科大鼎新电子科技有限公司 Graphene bonding silver wire and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001176912A (en) * 1999-12-16 2001-06-29 Noge Denki Kogyo:Kk Silver wire bonding wire filmed with gold
WO2008149666A1 (en) * 2007-06-07 2008-12-11 Tanaka Kikinzoku Kogyo K.K. Method for production of electric contact material, electric contact material, and thermal fuse
JP2011137198A (en) * 2009-12-28 2011-07-14 Tokuriki Honten Co Ltd Electrode material and method for manufacturing the same
CN105428097A (en) * 2015-12-24 2016-03-23 济南大学 Silver-based electrical contact composite material and preparation method therefor
CN106711117A (en) * 2017-01-24 2017-05-24 山东科大鼎新电子科技有限公司 Graphene bonding silver wire and preparation method thereof

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