Examples of using Sintering method in English and their translations into Korean
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Ultrafine/ nano-alloy powder sintering method directly;
Sintering method results in small composition segregation is, but with the highest cost.
Tungsten Copper Rod Sintering Method- Chinatungsten Online.
The performance of the W-Cu Composite materials prepared by different liquid phase sintering methods.
Tungsten Copper Sheet Sintering Method- Chinatungsten Online.
The method of preparation is mainly divided into two categories: infiltration and direct sintering method.
High-temperature sintering method using the material made of high relative density, good overall performance.
And then produce the W/Cu composite material by Compression Molding and Powder Injection Molding sintering method.
Ultrafine/ nano-alloy powder sintering method directly; this method uses mechanical alloying, sol-gel.
Mechanical alloying: Tungsten copper mechanical alloying is a kind of sintering method by high-energy ball milling.
The use of high-temperature sintering method of manufacturing the material relatively high density, good overall performance.
MA(Mechanical Alloying): After high-energy ball milling and other processing and to achieve the mechanical alloying between tungsten and copper tungsten copper powder corresponding sintering method.
Tungsten copper sintering method also includes the activation temperature liquid phase sintering and sintering method.
It solves the problem that the difference of sintering temperature andshrinkage of different composition gradient layers, which is difficult to conventional sintering technology furnace constant temperature sintering method.
The name suggests, a direct sintering method, after forming the desired composition of the mixed powder of tungsten and copper repression directly sintered product.
As there is a huge distance between the tungsten and copper of the melting point, so we can adopt high temperature liquid sintering method to make tungsten copper alloy, through which densificate its density at the temperature higher than copper melting point.
The sintering method of tungsten copper plate are different with the method of tungsten copper sheet, due to the thickness of the tungsten copper plate is much larger than tungsten copper sheet.
Tungsten copper material with low oxygen content, high purity,high temperature sintering method suitable for the manufacture of copper mass fraction φ(Cu) is not greater than 15% of the tungsten copper material.
Liquid phase sintering method is characterized by the activation of the production process is simple, but there is a high sintering temperature, sintering time is long, a large number of volatile copper, poor sintering performance, lower sintered density and other shortcomings, can not meet the requirements.
The oxygen content of the tungsten and copper material is very low,high purity, high temperature sintering method suitable for manufacture of the mass fraction of copper is not greater than 15% of the tungsten and copper material.
However, activation of liquid phase sintering method to obtain the desired relative density, hardness, tensile strength, such as sintering performance good, but unfortunately, the impact of adding activator with high conductivity copper electrical conductivity, thermal conductivity, thermal conductivity significantly reduces the composite, conductivity, thermal conductivity which is high demand for electronic packaging sheet material is unfavorable, the material prepared by this method can only be applied with the guide to provoke less demanding areas.
As there is a huge distance between the tungsten and copper of the melting point, so we can adopt high temperature liquid sintering method to make tungsten copper alloy, through which densification its density at the temperature higher than copper melting point.
Activation of activator liquid phase sintering method of adding significantly lower thermal conductivity properties, this method requires a high electrical and thermal conductivity of microelectronic materials is unfavorable.
Tungsten, copper mutually insoluble tungsten-copper alloypowder metallurgy manufacturing process, commonly used methods can only be used ordinary sintering method and the melt infiltration process, but the system is more difficult to take the high relative density of copper tungsten alloy.
Overall, the production of high-temperature liquid phase sintering process is simple, but has a high sintering temperature, sintering time is long,a large number of volatile copper, poor sintering performance, lower sintered density and other shortcomings, so the high-temperature liquid phase sintering method can not prepare high density of tungsten copper composite material, if after assisted sintering process makes the process complicated and costly.
This method is called sandwich method, sintering combination method. .
Tungsten Copper Process — Co-reduction Tungsten copper co-reduction process is a kind of method sintering in reductive atmosphere after mixing tungsten and copper oxides powder, pressing and forming.