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2014年12月21日星期日

Tungsten Copper Melting Point

Tungsten Copper Alloy
The alloy which is used by taking copper and tungsten is known as copper tungsten alloy. Such alloys are pseudo alloys of tungsten and copper which means that their microstructure is a metal matrix composite and not really a true alloy. This happens because copper and tungsten are not mutually soluble when mixed together. When copper and tungsten are combined, the material which is obtained has properties of both copper and tungsten. The material which is obtained is heat-resistant, thermally conductive and has high electrical conductivity as well. These materials are also ablation resistant. This is the reason why this material is used for making copper tungsten electrodes.



Tungsten Copper Alloy Features
Tungsten copper is composite materials using excellent metal characteristic of high-purity tungsten powder, and good plasticity, high conductivity of high purity copper powder, by refining process of isocratic pressing, high temperature sintering, and dissolved copper infiltration. Good broken arc performance, good thermal conductivity, little thermal expansion, does not soften at high temperature, high strength, high density, and high hardness.


Tungsten copper has good electrical and thermal conductivity, good high temperature strength and certain plasticity. At very high temperatures, such as above 3000 , the copper in alloy is liquefied and evaporated, absorbs heat, reduces the surface temperature. So this kind of material is also called metal sweating materials.

2014年12月11日星期四

Tungsten Copper Thermal Conductivity

As the speed and degree of integration of semiconductor devices increases, more heat is generated, and the performance and lifetime of semiconductor devices depend on the dissipation of the generated heat. Tungsten copper alloys have high electrical and thermal conductivity, low contact resistances, and low coefficients of thermal expansion, thus allowing them to be used as a shielding material for microwave packages, and heat sinks for high power integrated circuits (ICs). In this study, the thermal conductivity and thermal expansion of several types of tungsten–copper (W–Cu) composites are investigated, using compositions of 5–30 wt.% copper balanced with tungsten. The tungsten–copper powders were produced using the spray conversion method, and the W–Cu alloys were fabricated via the metal injection molding. The tungsten–copper composite particles were nanosized, and the thermal conductivity of the W–Cu alloys gradually decreases with temperature increases. The thermal conductivity of the W–30 wt. % Cu composite was 238 W/(m K) at room temperature.


We present the temperature dependence of the thermophysical properties for tungsten–copper composite from room temperature to 400 °C. The powders of tungsten–copper were produced by the spray conversion method and the W–Cu alloys were fabricated by the metal injection molding. Thermal conductivity and thermal expansion of tungsten–copper composite was controllable by volume fraction copper.

2014年11月18日星期二

EDM Tungsten Copper Electrode

EDM tungsten copper electrode is a powder metal product designed to combine the best EDM properties of tungsten and copper. Tungsten copper combines the high electrical conductivity of copper with the high melting point of tungsten. The combination of these two metals creates an electrode material with very good wear properties. 

The manufacturing of Copper Tungsten Electrodes is telling about a combination of two metals: copper and tungsten. So this is a product is caring the properties of both the metals. Copper tungsten rod is highly heat resistant and conductive. 10 – 50% copper is incorporated according to the demand of usability.


Features of Copper Tungsten Electrodes:
Thermal and electrical conductivity up to a high limit
Available in both finished and semi finished shape

Our product range also comprises of tungsten copper bar, tungsten copper blocks and other tungsten copper products.

2014年11月13日星期四

Tungsten Copper Rod

As our network is instability this morning, I have tested our finished products tungsten copper rod. These rods are ordered by our Brazil customer, and customer also have ordered pure tungsten rod. We are glad he is our old client, he has purchased many times, and the feedback about our products are excellent.
Tungsten copper rods are used as electrode, so it also named as tungsten copper electrode. We are able to provide the tungsten content for 50%W to 90%W, and we are also able to provide the special content as per clients required. If you have any special required about tungsten copper products, please do not hesitate to contact us.

The following is the photo about our tungsten copper rod:



Our con-men size of tungsten copper rod is 300mm length, and the smallest diameter is 1mm. but if you have any special required about size, we could meet your per required. Welcome to send inquiry to us. We will try our best to provide our best products to you.

2014年11月9日星期日

Tungsten Copper Electrode

The manufacturing of copper tungsten electrodes is telling about a combination of two metals copper and tungsten. So this is a product is caring the properties of both the metals. Copper tungsten rod is highly heat resistant and conductive. Tungsten copper electrode is use as High electrical and high thermal conductivity in for various welding process. Electric discharge machine and but welding etc.


Features of Copper Tungsten Electrodes:
Thermal and electrical conductivity up to a high limit
Available in both finished and semi finished shape

Specifications of Copper Tungsten Electrodes:
Tungsten, Copper Ratio (80%-20%) & (70%-30%)
Surface Tungsten Surface
10 – 50% copper is incorporated according to the demand of usability

Features of Tungsten Copper Alloy Electrode:
Tough and tensile
Affordable prices
Supreme quality materials
Reliable and efficient

Rust proof

2014年10月27日星期一

New Order for Tungsten Copper Plate

Last week, we have got our old client’s new order for tungsten copper plate, and this client is from Malaysia, he is a good client.
Last order, he have order some rods and some plates, he said our products are excellent. And they wook well, so he want to order more this time.
The following photos are the products he had ordered:


Tungsten copper plate is a combination of tungsten and copper. The manufacturing process is as follows: press the refractory metal, sinter the pressed compact at a high temperature, and infiltrate it with copper. All this is done under very closely controlled conditions. The result is a relatively hard material with superior arc and wear resistance, high physical Properties: at elevated temperatures, and good electrical and thermal conductivity.
The application of tungsten copper plate are as following:
1. Resistance Welding Electrode
2. Electric Spark Electrode
3. High-voltage Discharge Tube Electrode
4. Electrical Seal Material

2014年10月20日星期一

Tungsten Copper Welding Electrode

At the end of September, our client inform us our tungsten copper welding electrode which have been delivery to his company at the end of July are not suitable for his application.
He inform us maybe the material are wrong, the real material he have been used are not tungsten copper, so he send us his product. We have got his product on the Oct.8th, 2014. As we could not testing the materials content, so we have sent the products to Beijing to test. Now, the the test result reports that the material is not tungsten copper, it is pure tungsten.
We inform the client we are also able provide pure tungsten, so the client requires us provide the quotation about pure tungsten to him. Now, the price are under calculating, we will provide the price to him soon.
The following is the tungsten copper welding electrode provided by us:
If you have any inquiries and do not know the real material, you can contact us and send us your sample, we could testing the material for you.