CN201413775Y - Large-power hard copper tungsten iron composite electric contact material - Google Patents
Large-power hard copper tungsten iron composite electric contact material Download PDFInfo
- Publication number
- CN201413775Y CN201413775Y CN2009203030215U CN200920303021U CN201413775Y CN 201413775 Y CN201413775 Y CN 201413775Y CN 2009203030215 U CN2009203030215 U CN 2009203030215U CN 200920303021 U CN200920303021 U CN 200920303021U CN 201413775 Y CN201413775 Y CN 201413775Y
- Authority
- CN
- China
- Prior art keywords
- contact material
- copper
- layer
- composite electric
- copper tungsten
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a large-power hard copper tungsten iron composite electric contact material. A layer of copper tungsten layer is sintered on the iron alloy layer. Because the iron alloy isused as the basis material, the contact material has features of high hardness and good abrasion resistance. Because copper material is used, the current breaking capacity, conducting capacity and current interruption feature are greatly increased. If the material is in service life period, the performance uniformity is high. The contact material simplifies the appliance switch structure, eliminates the spring dispersibility in the switch and greatly increases the reliability. The material is widely used for producing electric contacts on various vacuum circuit breakers.
Description
Technical field
The utility model relates to electrical contact material in a kind of vacuum circuit-breaker, relates in particular to a kind of high-power nothing silver electrical contact material.
Background technology
In vacuum circuit-breaker, contact material has been proposed the requirement of many aspects, mainly contain three aspects: high current interruption characteristic (electric current breaking capacity), discontinuous current characteristic (shut off value) and high current-carrying domestic animal property (conductivity).
The material main silver-colored tungsten carbide material, Guillaume metal, copper-tungsten and the chromiumcopper that are used for vacuum circuit-breaker at present.Different materials respectively has pluses and minuses, and silver-colored tungsten carbide material uses noble metal silver to make conductor material, expensive; Guillaume metal has good, but the electric current breaking capacity is undesirable; Though breaking capacity that the copper-tungsten tool is good good and conduction power, discontinuous current characteristic (shut off value) is undesirable, and owing to take infiltration process, occurs copper easily and assemble; Chromiumcopper material potentiality are big, but the difficult and contact material gas content height of Control of Impurities in the present chromium material causes material property dispersed high.
The utility model content
The utility model purpose is to provide a kind of good conduction of copper, heat conduction and chemical stability of making full use of, in conjunction with tungsten carbide material thermionic emission ability, and utilize the meticulous control of the distance between tungsten/tungsten carbide particle and the particle, reach the combination property that improves contact material, by the measured contact material of explained hereafter pledge of innovation.Utilize Technology for Heating Processing simultaneously, ferroalloy is integral sintered at contact product non-working surface, manufacture high-power hard copper ferrotungsten composite electric contact material at last with premium properties.
The technical scheme that realizes the utility model purpose is:
A kind of high-power hard copper ferrotungsten composite electric contact material is characterized in that: described electrical contact material closes sintering layer of copper tungsten alloy layer on the alloy-layer by iron.
The utility model compared with prior art has following advantage:
1. this electrical contact material is because to adopt the iron alloy be base material, has hardness height, characteristics that mar proof is good.
2. because material adopts copper product, the combination property height such as electric current breaking capacity, conductive capability and discontinuous current characteristic of the electrical contact of making are improved; Material in the cycle in useful life, the performance uniformity height.
3. adopt this contact material to simplify electrical switch structure, eliminated the dispersiveness of switch medi-spring, increase substantially the reliability of parts.
4. owing to adopt cheap copper, iron to be combined into raw material, reduced the cost of electrical contact material significantly.
Description of drawings
Fig. 1 is the structural representation of high-power hard copper ferrotungsten composite electric contact material described in the utility model
Fig. 2 is the manufacture craft flow chart of copper-tungsten blank described in the utility model
1. copper-tungsten layer 2. iron close alloy-layer
Embodiment
As can be seen from Figure 1, a kind of high-power hard copper ferrotungsten composite electric contact material is characterized in that: described electrical contact material closes sintering layer of copper tungsten alloy layer 1 on the alloy-layer 2 by iron.
As can be seen from Figure 2, a kind of manufacture craft of high-power hard copper ferrotungsten composite electric contact material is as follows: at first select copper powder, tungsten carbide powder and the tungsten of suitable particles degree to mix by a certain percentage.
Then above-mentioned mixed powder is carried out repeatedly heat treatment, compression moulding and fragmentation, be pressed into porosity copper-tungsten material up to standard at last, and carry out pre-burning and handle and to make the complete infiltration of copper in alloy material, make the copper-tungsten blank.
To be ready to blank after iron alloy and the pre-burning and carry out together that sintering, infiltration are made into high-power hard copper ferrotungsten composite electric contact material.
This material is widely used in the electrical contact of making on the various vacuum circuit-breakers.
Claims (1)
1. high-power hard copper ferrotungsten composite electric contact material is characterized in that: described electrical contact material closes alloy-layer (2) by iron and goes up sintering layer of copper tungsten alloy layer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203030215U CN201413775Y (en) | 2009-05-11 | 2009-05-11 | Large-power hard copper tungsten iron composite electric contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203030215U CN201413775Y (en) | 2009-05-11 | 2009-05-11 | Large-power hard copper tungsten iron composite electric contact material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201413775Y true CN201413775Y (en) | 2010-02-24 |
Family
ID=41715656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203030215U Expired - Fee Related CN201413775Y (en) | 2009-05-11 | 2009-05-11 | Large-power hard copper tungsten iron composite electric contact material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201413775Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551575A (en) * | 2013-10-31 | 2014-02-05 | 福达合金材料股份有限公司 | Preparation method of soft magnetic electrical contact material with self-arc-quenching characteristic and product obtained by same |
-
2009
- 2009-05-11 CN CN2009203030215U patent/CN201413775Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551575A (en) * | 2013-10-31 | 2014-02-05 | 福达合金材料股份有限公司 | Preparation method of soft magnetic electrical contact material with self-arc-quenching characteristic and product obtained by same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6100978B1 (en) | Graphene reinforced copper-based composite contact material and method for producing the same | |
| CN102166650B (en) | Method for manufacturing gradient copper-wolfram/copper-chromium zirconium bronze integrated contact | |
| CN101510479B (en) | Method for preparing siller tin oxide electric contact material | |
| CN101777438A (en) | High-performance silver cadmium oxide material and manufacturing method thereof | |
| CN101707146B (en) | Ag based electrical contact material and preparation method thereof | |
| CN101834070A (en) | AgWC (wolfram carbide) electrical contact material and manufacturing method thereof | |
| CN101127253B (en) | Silver nickel electricity-conductive ceramic electrical contact material and its production method | |
| CN101452773A (en) | Copper-based SiCp rare-earth ceramet composite electric contact material | |
| CN101979694A (en) | Voltage-withstanding silver tungsten carbide graphite contact material and preparation method thereof | |
| CN102051496A (en) | Electric contact material made of silver-tungsten carbide graphite and preparation method thereof | |
| CN201413775Y (en) | Large-power hard copper tungsten iron composite electric contact material | |
| CN104409227A (en) | Arc contact processed by various materials for high-voltage switch | |
| CN102237204A (en) | High-voltage tungsten-base composite contact material and method for making same | |
| CN102347158A (en) | Processing technique for high-power hard copper-tungsten-iron (Cu-W-Fe) compound electrical contact | |
| CN101572194A (en) | Profiled high conductivity copper-tungsten electrical contact material and processing technique thereof | |
| CN102446643A (en) | Composite electrical contact processing technology | |
| CN106222476A (en) | A kind of Novel electric contact material | |
| CN104131246B (en) | A kind of nickeliferous fiber siluer metal oxide electric contact material and preparation method thereof | |
| CN1055732C (en) | Copper-base powder alloy material for electric contact | |
| CN106282643A (en) | A kind of cuprio electric contact composite material and vacuum hot-pressing process thereof | |
| CN105349820A (en) | Copper-based electrical contact composite material and discharge plasma sintering process thereof | |
| CN105719854A (en) | Preparation method for copper-based electric contact material with graphene | |
| CN102347148A (en) | High-power hard copper, tungsten and ferrum compound electric contact material | |
| CN100369171C (en) | Silver base rare earth alloy contact material for low-voltage switch electric appliance and method for preparing same | |
| CN102436864B (en) | Titanium carbide based electrical contact material as well as preparation method and applications thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jingjiang Haiyuan Nonferrous Metal Material Co., Ltd. Assignor: Song Heming Contract record no.: 2011320001079 Denomination of utility model: High-power hard copper, tungsten and ferrum compound electric contact material Granted publication date: 20100224 License type: Exclusive License Record date: 20110805 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20120511 |