CN106024432A - Zirconium carbide copper-based contact material for low-voltage electric appliances and processing method thereof - Google Patents

Zirconium carbide copper-based contact material for low-voltage electric appliances and processing method thereof Download PDF

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Publication number
CN106024432A
CN106024432A CN201610437097.1A CN201610437097A CN106024432A CN 106024432 A CN106024432 A CN 106024432A CN 201610437097 A CN201610437097 A CN 201610437097A CN 106024432 A CN106024432 A CN 106024432A
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CN
China
Prior art keywords
contact
oxide
copper
zirconium carbide
zirconium
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Pending
Application number
CN201610437097.1A
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Chinese (zh)
Inventor
吴康楼
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Xianju Nanda Alloy Technology Co Ltd
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Xianju Nanda Alloy Technology Co Ltd
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Publication date
Application filed by Xianju Nanda Alloy Technology Co Ltd filed Critical Xianju Nanda Alloy Technology Co Ltd
Priority to CN201610437097.1A priority Critical patent/CN106024432A/en
Publication of CN106024432A publication Critical patent/CN106024432A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/02Contacts characterised by the material thereof
    • H01H1/021Composite material
    • H01H1/025Composite material having copper as the basic material
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/04Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
    • H01H11/048Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by powder-metallurgical processes

Abstract

The invention discloses a zirconium carbide copper-based contact material for low-voltage electric appliances. The zirconium carbide copper-based contact material is characterized in that the contact material is prepared from the following components in percentages by weight: 1% to 5% of zirconium carbide, 0.1% to 5% of alloy metals, 0.1% to 10% of rare earth oxides and the balance of copper, wherein the alloy metals comprise one or the combination of two or more than two of aluminum, lanthanum, cerium, yttrium, nickel, chromium, zirconium, niobium, vanadium and tungsten; and the rare earth oxides comprise one or the combination of two or more than two of rhenium oxide, lanthanum oxide, cerium oxide, yttrium oxide, yttrium oxide sulfide, samarium oxide and zirconium oxide. A low-voltage electric appliance contact prepared from the materials is high in welding resistance, wear resistance and oxidation resistance, and can be safely used for a long time. Moreover, the invention also provides a processing method of the zirconium carbide copper-based contact material for the low-voltage electric appliances.

Description

Low-voltage electrical apparatus zirconium carbide copper-base contact material and processing method thereof
Technical field
The present invention relates to a kind of low-voltage electrical apparatus contact material and processing method thereof.
Background technology
In the market the contact material of low-voltage electrical apparatus contact mainly divide Ag-based electrical contact material with silver as main constituent and Copper-based electrical contact material two class with copper as main constituent.Ag-based electrical contact material with silver as main constituent has good conduction Property, heat conductivity, there is the characteristics such as contact resistance is little, oxidation resistance is strong, such as siller tin oxide, Ag-ZnO, silver nickel, silver rare earth etc. Contact material.But along with the development of national economy, low-voltage electrical apparatus is on the increase, and silver consumption increases year by year, China and complete The silver shortage of resources in the world and expensive, constrain the development of money base low-voltage electrical apparatus contact material.So based on copper The copper-base contact material of composition starts to be applied to low voltage electrical apparatus industry, but the copper-base contact material with copper as main constituent is anti-molten Weldering ability is poor, and abrasion resistance, antioxygenic property etc. are also not enough, although at present can portion by the anti-melting welding dispersion-strengtherning component of addition Decompose certainly anti-welding problems, but this kind of contact Long Term Contact uses easily abrasion and oxidation etc., cause wiper resistance unstable, thus There is potential safety hazard.
Summary of the invention
The problem existed in view of currently known technology, the invention provides a kind of low-voltage electrical apparatus zirconium carbide cuprio contact material Material and processing method thereof, the contact prepared by above-mentioned material and processing method thereof has the resistance fusion welding energy of excellence, anti-wear performance And antioxygenic property, can long-term safety use simultaneously.
The present invention adopts the following technical scheme that and realizes:
Low-voltage electrical apparatus zirconium carbide copper-base contact material, it is characterised in that the composition of described contact material is by weight percentage: The rare earth oxide of the alloying metal of zirconium carbide, 0.1%~5%, 0.1%~10% of 1%~5%, its surplus is copper;Described alloy gold Belong to for a kind of in aluminum, lanthanum, cerium, yttrium, nickel, chromium, zirconium, niobium, vanadium, tungsten or two or more combination, described rare-earth oxidation Thing be the one in rheium oxide, lanthana, cerium oxide, yittrium oxide, yttrium oxysulfide, Disamarium trioxide, zirconium oxide or two kinds or two kinds with On combination.
In above-mentioned contact material, the anti-abrasion resistance of entirety and the non-oxidizability that add for improving contact of zirconium carbide Can, thus contact is effectively ensured and uses for a long time and also can keep stablizing of wiper resistance, and raising is played in the addition of alloying metal The effect of contact hardness, it is ensured that contact surface uniform wear, the junctional complex that contact seam moment produces has relatively low-intensity, reduces Contact surface and the formation of contact body crackle and extension, be finally reached the effect reducing electric arc etch;Adding of rare earth oxide Enter for improving contact resistance fusion welding and wearability, improve contact service life.
The low-voltage electrical apparatus processing method of zirconium carbide copper-base contact material, it is characterised in that comprise the following steps:By weight Amount percentage ratio by 1%~5% the RE oxide powder of the alloyed metal powder of zirconium carbide powder, 0.1%~5%, 0.1%~10% Mix with the copper powders of its surplus, by grinding, obtain the ultra-fine mixed powder of below 200 mesh;By the ultra-fine mixing of above-mentioned acquisition Powder is inserted in hermetic container and is pressed into the column stock needed for processing with cold isostatic press, and cold isostatic press operating pressure is 200MPa~250MPa, pressurize 3 minutes;Stock is sintered under a shielding gas, sintering temperature 950 DEG C~1200 DEG C, time 2~3 hours;Stock after sintering is by extruding or forging molding, then rolls, and eventually forms contact material.
Using the contact material that above-mentioned processing method prepares, not only intensity is high but also Stability Analysis of Structures, makes contact have excellence Resistance fusion welding energy, anti-wear performance and antioxygenic property, it is ensured that contact can long-term safety use.
Detailed description of the invention
The low-voltage electrical apparatus of present invention zirconium carbide copper-base contact material, the composition of described contact material is by weight percentage For: the rare earth oxide of the alloying metal of zirconium carbide, 0.1%~5%, 0.1%~10% of 1%~5%, its surplus is copper;Described conjunction Gold metal is a kind of in aluminum, lanthanum, cerium, yttrium, nickel, chromium, zirconium, niobium, vanadium, tungsten or two or more combination, described rare earth Oxide is the one in rheium oxide, lanthana, cerium oxide, yittrium oxide, yttrium oxysulfide, Disamarium trioxide, zirconium oxide or two kinds or two Plant above combination.
The low-voltage electrical apparatus of the present invention processing method of zirconium carbide copper-base contact material, comprises the following steps:By weight Percentage ratio by 1%~5% the alloyed metal powder of zirconium carbide powder, 0.1%~5%, 0.1%~10% RE oxide powder and The copper powders mixing of its surplus, by grinding, obtains the ultra-fine mixed powder of below 200 mesh;By the ultra-fine mixed powder of above-mentioned acquisition Inserting in hermetic container and be pressed into the column stock needed for processing with cold isostatic press, cold isostatic press operating pressure is 200MPa ~250MPa, pressurize 3 minutes;Stock is sintered under a shielding gas, sintering temperature 950 DEG C~1200 DEG C, the time 2 ~3 hours;Stock after sintering is by extruding or forging molding, then rolls, and eventually forms contact material.
Embodiment one: low-voltage electrical apparatus zirconium carbide copper-base contact material, its composition by weight percentage: 5% zirconium carbide, 0.5% aluminum, 0.5% chromium, 0.5% zirconium, 1% rheium oxide, 1% lanthana, its surplus is copper.Contact material processing method is as follows:By upper The powder stating the zirconium carbide of percentage by weight, aluminum, chromium, zirconium, rheium oxide, lanthana and copper is sufficiently mixed, and by grinding, obtains Ultra-fine mixed powder below 200 mesh;The ultra-fine mixed powder of above-mentioned acquisition is inserted in hermetic container and is pressed into cold isostatic press Column stock needed for processing, cold isostatic press operating pressure is 250MPa, pressurize 3 minutes;Stock enters under a shielding gas Row sintering processes, sintering temperature 1100 DEG C, time 2 h;Stock after sintering is by extruding or forging molding, then rolls System, eventually forms contact material.
Embodiment two: low-voltage electrical apparatus zirconium carbide copper-base contact material, its composition by weight percentage: 2% zirconium carbide, 1% Nickel, 2% Disamarium trioxide, its surplus is copper.Contact material processing method is as follows:By the zirconium carbide of above-mentioned percentage by weight, nickel, oxygen The powder changing samarium and copper is sufficiently mixed, and by grinding, obtains the ultra-fine mixed powder of below 200 mesh;Ultra-fine by above-mentioned acquisition mixes Conjunction powder is inserted in hermetic container and is pressed into the column stock needed for processing with cold isostatic press, and cold isostatic press operating pressure is 200MPa, pressurize 3 minutes;Stock is sintered under a shielding gas, sintering temperature 1000 DEG C, 2.5 hours time; Stock after sintering is by extruding or forging molding, then rolls, and eventually forms contact material.
The low-voltage electrical apparatus zirconium carbide copper-base contact material prepared by above-described embodiment, its performance is as follows: density >= 8.6g/cm3;Hardness 700~900MPa;Resistivity≤2.2 μ Ω cm.

Claims (2)

1. low-voltage electrical apparatus zirconium carbide copper-base contact material, it is characterised in that the composition of described contact material is by weight percentage For: the rare earth oxide of the alloying metal of zirconium carbide, 0.1%~5%, 0.1%~10% of 1%~5%, its surplus is copper;Described conjunction Gold metal is a kind of in aluminum, lanthanum, cerium, yttrium, nickel, chromium, zirconium, niobium, vanadium, tungsten or two or more combination, described rare earth Oxide is the one in rheium oxide, lanthana, cerium oxide, yittrium oxide, yttrium oxysulfide, Disamarium trioxide, zirconium oxide or two kinds or two Plant above combination.
2. the low-voltage electrical apparatus processing method of zirconium carbide copper-base contact material, it is characterised in that comprise the following steps:By weight Percentage ratio by 1%~5% the alloyed metal powder of zirconium carbide powder, 0.1%~5%, 0.1%~10% RE oxide powder and The copper powders mixing of its surplus, by grinding, obtains the ultra-fine mixed powder of below 200 mesh;By the ultra-fine mixed powder of above-mentioned acquisition Inserting in hermetic container and be pressed into the column stock needed for processing with cold isostatic press, cold isostatic press operating pressure is 200MPa ~250MPa, pressurize 3 minutes;Stock is sintered under a shielding gas, sintering temperature 950 DEG C~1200 DEG C, the time 2 ~3 hours;Stock after sintering is by extruding or forging molding, then rolls, and eventually forms contact material.
CN201610437097.1A 2016-06-20 2016-06-20 Zirconium carbide copper-based contact material for low-voltage electric appliances and processing method thereof Pending CN106024432A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610437097.1A CN106024432A (en) 2016-06-20 2016-06-20 Zirconium carbide copper-based contact material for low-voltage electric appliances and processing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610437097.1A CN106024432A (en) 2016-06-20 2016-06-20 Zirconium carbide copper-based contact material for low-voltage electric appliances and processing method thereof

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CN106024432A true CN106024432A (en) 2016-10-12

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110504113A (en) * 2019-08-21 2019-11-26 哈尔滨东大高新材料股份有限公司 A kind of addition zircon powder ZrSiO4Strengthen copper-based electrical contact material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1767105A (en) * 2005-10-07 2006-05-03 乐清市帕特尼触头有限公司 Cleaning environment-friendly type copper-base contact material for low-voltage electrical apparatus and its contact preparing method
CN1892956A (en) * 2005-07-07 2007-01-10 株式会社日立制作所 Electrical contacts for vacuum circuit breakers and methods of manufacturing the same
CN102051496A (en) * 2010-11-25 2011-05-11 福达合金材料股份有限公司 Electric contact material made of silver-tungsten carbide graphite and preparation method thereof
CN103060604A (en) * 2013-01-24 2013-04-24 陕西斯瑞工业有限责任公司 Contact material applied to middle-high-voltage vacuum switch-on/off and preparation method for same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1892956A (en) * 2005-07-07 2007-01-10 株式会社日立制作所 Electrical contacts for vacuum circuit breakers and methods of manufacturing the same
CN1767105A (en) * 2005-10-07 2006-05-03 乐清市帕特尼触头有限公司 Cleaning environment-friendly type copper-base contact material for low-voltage electrical apparatus and its contact preparing method
CN102051496A (en) * 2010-11-25 2011-05-11 福达合金材料股份有限公司 Electric contact material made of silver-tungsten carbide graphite and preparation method thereof
CN103060604A (en) * 2013-01-24 2013-04-24 陕西斯瑞工业有限责任公司 Contact material applied to middle-high-voltage vacuum switch-on/off and preparation method for same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110504113A (en) * 2019-08-21 2019-11-26 哈尔滨东大高新材料股份有限公司 A kind of addition zircon powder ZrSiO4Strengthen copper-based electrical contact material

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Application publication date: 20161012