CN102347148A - High-power hard copper, tungsten and ferrum compound electric contact material - Google Patents
High-power hard copper, tungsten and ferrum compound electric contact material Download PDFInfo
- Publication number
- CN102347148A CN102347148A CN2010102434223A CN201010243422A CN102347148A CN 102347148 A CN102347148 A CN 102347148A CN 2010102434223 A CN2010102434223 A CN 2010102434223A CN 201010243422 A CN201010243422 A CN 201010243422A CN 102347148 A CN102347148 A CN 102347148A
- Authority
- CN
- China
- Prior art keywords
- contact material
- copper
- tungsten
- electric contact
- ferrum
- 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.)
- Pending
Links
Abstract
The invention discloses a high-power hard copper, tungsten and ferrum compound electric contact material. A layer of copper and tungsten alloy layer is sintered on a ferrum alloy layer; as the ferrum alloy is used as a base material, the compound electric contact material has the characteristics of high hardness and high abrasion resistance; due to adoption of a copper material, comprehensive performance, such as the current breaking capacity, the conductivity, the current intermittent characteristic and the like, of the manufactured electric contacts is improved; and within the service life cycle, the performance uniformity of the electric contact material is high. By adoption of the contact material, a switch structure of an electric appliance is simplified, the dispersibility of springs in a switch is eliminated and the reliability of parts is improved greatly. The material is widely applied to manufacturing of electric contacts of various vacuum circuit breakers.
Description
Technical field
The present invention relates to electrical contact material in a kind of vacuum circuit-breaker, relate 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 the dispersed height of material property.
Summary of the invention
The object of the invention 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, through 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 object of the invention 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 present invention 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 is in the cycle in useful life, and performance uniformity is high.
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 according to the invention
Fig. 2 is the manufacture craft flow chart of copper-tungsten blank described in the present invention
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 following: 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, process 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 |
|---|---|---|---|
| CN2010102434223A CN102347148A (en) | 2010-07-29 | 2010-07-29 | High-power hard copper, tungsten and ferrum compound electric contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102434223A CN102347148A (en) | 2010-07-29 | 2010-07-29 | High-power hard copper, tungsten and ferrum compound electric contact material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102347148A true CN102347148A (en) | 2012-02-08 |
Family
ID=45545727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102434223A Pending CN102347148A (en) | 2010-07-29 | 2010-07-29 | High-power hard copper, tungsten and ferrum compound electric contact material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102347148A (en) |
-
2010
- 2010-07-29 CN CN2010102434223A patent/CN102347148A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6100978B1 (en) | Graphene reinforced copper-based composite contact material and method for producing the same | |
| JP6126066B2 (en) | Electrical contact material and manufacturing method thereof | |
| CN102166650B (en) | Method for manufacturing gradient copper-wolfram/copper-chromium zirconium bronze integrated contact | |
| CN101777438A (en) | High-performance silver cadmium oxide material and manufacturing method thereof | |
| CN101834070A (en) | AgWC (wolfram carbide) electrical contact material and manufacturing method thereof | |
| CN102051496B (en) | Electric contact material made of silver-tungsten carbide graphite and preparation method thereof | |
| CN101979694A (en) | Voltage-withstanding silver tungsten carbide graphite contact material and preparation method thereof | |
| CN101452773A (en) | Copper-based SiCp rare-earth ceramet composite electric contact material | |
| US20100133951A1 (en) | Carbon brush for transmitting high currents | |
| CN102347158A (en) | Processing technique for high-power hard copper-tungsten-iron (Cu-W-Fe) compound electrical contact | |
| CN201413775Y (en) | Large-power hard copper tungsten iron composite electric contact material | |
| CN102237204A (en) | High-voltage tungsten-base composite contact material and method for making same | |
| 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 | |
| CN102347148A (en) | High-power hard copper, tungsten and ferrum compound electric contact material | |
| CN105761956A (en) | Contact material, vacuum arc-extinguishing chamber contact and manufacturing method thereof | |
| CN106282643A (en) | A kind of cuprio electric contact composite material and vacuum hot-pressing process thereof | |
| CN104362015A (en) | Preparation method of copper-tungsten contact material | |
| CN104131246A (en) | Nickel-fiber-containing silver metal-oxide electrical contact material and preparation method thereof | |
| CN102899551B (en) | Silver-saving silver tungsten carbide graphite electrical contact material for high-performance low-voltage circuit breaker | |
| CN105428148B (en) | The high-power compound electric connector of one kind and its processing technology | |
| CN100369171C (en) | Silver base rare earth alloy contact material for low-voltage switch electric appliance and method for preparing same | |
| CN105861864A (en) | Preparation method of alloy electrical contact material | |
| CN107204557A (en) | The preparation method of commutator, the motor using the commutator and commutator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120208 |
|
| WD01 | Invention patent application deemed withdrawn after publication |