The spray drying process of tungsten copper consists of three stages: spray drying, preparation and hybrid of original liquor and conversion of fluidized bed.

This method is used to prepare WC-Co, W-Ni-Fe and various tungsten copper alloy and nano composite powder. The comprehensive mechanical properties of tungsten copper prepared by the method are obviously improved, and the service life is three times higher than that of conventional products, the process is easy to operate, no impurities and has broad prospects.

The powder obtained by this process can be converted into metal composite powder by fluidized bed, mixing a variety of metal salt solution, quickly injected into the drying chamber through the nozzle to obtain metal salt particles, roasting it, ultrafine particles of nano crystalline oxide composite powder precursors were obtained. Under certain conditions, the precursor powder is obtained through reduction or carbonization to obtain alloy composite powder or carbide.

The cold rolling process of tungsten copper sheet not only has the advantages of low energy consumption, low equipment investment and high production efficiency, but also can rapidly improve the cold working plasticity of tungsten copper alloy.

Nowadays, the processing method of tungsten copper has lots of problems. For example: long production cycle, high energy consumption, most using equipment is the high power processing equipment, high investment, etc. The cold rolling of tungsten copper sheet not only can solve the problem of low energy consumption, but also can enhance productivity, shrink area, improve the processing plasticity of tungsten copper.

Tungsten copper counterweight block is widely used in weapons, aerospace and ships, tungsten copper provides a lateral force for the sailboat, as a military weapon, the size tolerance of it is smaller, high resistance to heat treatment and high mechanical properties. In aerospace, it is often used in gyroscopes and aircraft counterweight, the high density of tungsten copper alloy products greatly reduces the physical size of the components and it easy to increase sensitivity and control weight distribution, but it should be noted that in aerospace, there have higher requirements of the density and mechanical.

Advantages of tungsten copper alloy counterweight block:

1. It improves tungsten plasticity because of contain copper.

2. Easy molding.

3. Density, uniform structure.

4. High hardness and tensile strength.

Tungsten copper tail rudder can be divided into two types:

1. Cross tail rudder: Four rudders is the cruciform layout, because it is suitable for the submarine activities, the rudder of the horizontal arrangement is larger and the force bearing area is smaller than that of the tail rudder with a cross shaped layout, it is not easy to break when come across ice breaking.

2.X tail rudder: It usually less than or equal to the size of the diameter of the submarine, X shaped layout, smaller size, compared with cross tail rudder, it is safer and less prone to damage.

Effect: On the one hand to provide stability for aircraft, to ensure the balance of the aircraft, control the fly of plane. On the other hand, with the help of the aileron to produce centrifugal force to complete a large angle steering. It can adjust the horizontal and vertical lifting capacity, etc.

Tungsten copper is a kind of material which can be used as lining material, ceramic matrix composites and reinforced material, the thermal shock of throat lining mainly occurs at the moment of ignition, the tungsten copper material is made of tungsten infiltrated copper, not only because of its high density, hardness, strength, the good conductivity and thermal conductivity of copper, at the same time, the melting point of tungsten and copper is different, a large amount of heat is taken away by the evaporation of copper, which leaves the hard tungsten to ensure the stability of throat lining.

The principle of tungsten copper rocket throat:

1. Gas energy produced by combustion chamber through nozzle of solid rocket motor by controlling exhaust expansion control the expansion of the exhaust effectively into kinetic energy.

2.The main role of throat lining is limiting throat area

3. Commonly used metal powder for rocket engines, as a high energy propellant combustion, high temperature burning rate of air entrained solids scour throat, severe erosion of throat lining will directly affect the engine thrust and efficiency.

According to different arc extinguishing medium, tungsten copper contact in the high voltage switch can be divided into:

1. Oil circuit breaker contact.

2. Magnetic blow circuit breaker contact.

3. SF6 breaker contact.

4. Air circuit breaker contact.

5. Solid gas circuit breaker contact.

6. Vacuum circuit breaker contact.

The main function of it is to cut off, close the no-load current and load current in the high voltage circuit, through relay repair system failure. When loading on, the bounce of the contact causes the temperature of the surface rise continuously and the pulling arc is generated between the contacts.

The principle of it is when the switching load is switched on, ensure the contacts in the closing contact，meanwhile shortening the arcing time of the switch contact. In order to make the contact bounce, be sure to exert a great deal of pressure on the contact so as to cause a greater impact.

Tungsten copper alloy is widely used in high voltage switch, lightning arrester and high voltage vacuum load. It is not only small in size, but also widely used in flammable, explosive, humid and corrosive environment. Tungsten copper is widely used in high voltage switch, lightning arrester and high voltage vacuum load. It is not only small in size, but also widely used in flammable, explosive, humid and corrosive environment.

The special technology of vacuum degassing, infiltration and so on is needed. In high pressure, the special technology of vacuum degassing, infiltration and so on is needed in high pressure switch. The resistance to arc erosion, gas content and hot electron emission is limited.

Main properties in high voltage switch:

1. Higher demand for arc erosion.

2. Request high fusion welding resistance.

3. Small cut-off current.

4. Small gas content.

5. Low thermal electron emission.

Tungsten copper heat sink is a part of electronic packaging technology, because of the low expansion property of tungsten and thermal conductivity of copper is higher, the use of tungsten copper coefficient of thermal expansion and conductive thermal conductivity of materials to facilitate the use of materials.

Tungsten copper heat sink convenience for optoelectronic devices and cooling electronics convenience, on the one hand, in a light emitting diode and a high power laser, the physical design of the tungsten copper electronic package is convenient for cooling the peripheral fluid (the surface area of the air contact is increased); On the other hand, in the graphics processor and the computer central processor, the heat sink plays an important role in the final junction of the thermal interface material and the basic attachment method. The heat dissipation performance of heat sink can be determined by test attribute value.

Tungsten copper plate properties: it has good plasticity and high electrical conductivity, its electrical processing speed is relatively fast and easy to machining.

The production：

The technological process of tungsten copper plate is mainly formed by mixing powder, pressing, sintering and infiltration. Make tungsten copper powder press forming before liquid phase sintering. The material prepared by the mixed powder is far inferior to the activated sintering, mechanical alloying and oxide reduction. In order to improve the densification of tungsten copper alloy, it should through nano powder to improve the sintering activity. However, the sintering of nickel will make the electrical and thermal conductivity decrease rapidly make tungsten copper is difficult to produce.

Use of tungsten copper plate: Tungsten copper plate is usually used in electrode material, electric shock material, welding material and guide material. As electrode material, it is widely used in thin electrode discharge machining and high hardness materials; As welding materials are used in radio resistance and submerged arc welding machine; In order to play a guiding role in the protection of various wire rolling.

Tungsten copper rod are commonly used in EDM molds, its advantage are as follows:

1. The internal structure of tungsten copper rod is even

2. Tungsten copper rod has a long service life and high hardness

3. Because of high metal removal rate and conductivity, tungsten copper rod production capacity will continue to improve.

4. The mould has high surface finish and high density.

Tungsten copper rod specifications: (unit：mm）