Tungsten Copper Alloy
Tungsten copper is formed by isostatic pressing-high temperature sintered tungsten skeleton-copper infiltration process. It is an alloy of tungsten and copper.
● Resistance welding electrode:
Combining the advantages of tungsten and copper, high temperature resistance, arc ablation resistance, high strength, high specificity, good electrical and thermal conductivity, easy cutting and processing, and has the characteristics of sweating and cooling, due to the high hardness, high melting point and resistance of tungsten The characteristics of adhesion are often used to make projection welding and butt welding electrodes with certain wear resistance and high temperature resistance.
●Electric spark electrode: When the mold made of tungsten steel and high temperature resistant super hard alloy needs electrolytic corrosion, the ordinary electrode wears large and the speed is slow. The high electric corrosion rate of tungsten copper, low loss rate, precise electrode shape, and excellent processing performance can ensure that the accuracy of the workpiece is greatly improved.
●High-voltage discharge tube electrode: When the high-voltage vacuum discharge tube is working, the temperature of the contact material will increase by several thousand degrees Celsius in a few tenths of a second. The high ablation resistance, high toughness, and good electrical and thermal conductivity of tungsten copper provide the necessary conditions for the stable operation of the discharge tube.
●Electronic packaging material: It has both the low expansion characteristics of tungsten and the high thermal conductivity of copper. Its thermal expansion coefficient and electrical and thermal conductivity can be changed by adjusting the composition of the material, thus providing convenience for the use of the material.
Tungsten Copper Composite Electrode
The composite electrode combined with tungsten copper and iron eliminates the problems of pores and cracks in the welding composite used in this process in the past.
The tungsten-copper-iron composite electrode is a composite of tungsten-copper and iron, with high bonding strength and good electrical conductivity.
1. The reasonable combination of tungsten copper and iron makes its mechanical properties more reasonable and convenient to use. The deformation problem in the machining of small precision electrodes has been well solved;
2. The electrode can be directly adsorbed on the magnetic table for grinding. The flatness, surface finish and dimensional precision after processing are unmatched by other processing methods. It is especially advantageous in the processing of large flat electrodes;
3. The electrode reference after grinding has good reproducibility, which is especially suitable for the electrode that needs to be processed by multiple processes;
4. Multiple electrodes can be processed at the same time, which can greatly improve work efficiency;
5. Worn electrodes can be reused after grinding, with high utilization rate, greatly improving work efficiency and reducing processing costs.
Tungsten Copper Rod
Application: EDM for precision molds, electrodes for welding high-temperature resistant conductive parts of equipment (resistance welding electrodes)
Tungsten copper plate, tungsten copper strip
Application: Electric discharge machining of precision molds, electrodes for welding high-temperature resistant conductive parts of equipment (resistance welding electrodes), non-ferrous metal die-casting molds
Tungsten copper dot pad
Applicable: Electric discharge machining of seam welding electrodes in resistance production and various gear electrodes
Tungsten copper ring, cake electrode
Applicable: precision mold electric discharge machining, resistance welding seam welding wheel
Tungsten Copper Copper Integral Contact
Application: The bonding surface of the tungsten copper and copper surface of the contact is mutually diffused in by the two elements of tungsten and copper. The bonding strength of the two is very high. The tungsten copper is used as the arc ablation resistant working surface, and the copper layer is used as the base braze. Welding surface or riveting working surface, truly realize the composite of two different materials.
Tungsten Copper Slope Copper Plate
Application: EDM for precision molds.
Tungsten copper radiator discharge electrode
Application: Discharge machining of precision molds for radiators.
Our company provides you with one-time forming tungsten copper and iron combined tungsten copper radiator discharge electrode, the problem of deformation in the processing of tungsten copper sheet electrode has been well solved;
Tungsten Copper Nonferrous Metal Die Casting Mould
Application: non-ferrous metal casting mold
The copper-tungsten alloy is used to make die-casting molds, and preliminary assessment tests have been conducted.
Die-casting non-ferrous metal copper to make gas stove burner (120g), originally used 3Cr2W8V, life is about 1000～2000℃; using DH42 made by Japan Datong Steel, the life is not significantly improved; after using copper tungsten alloy, the life is about more than 5000 Pieces. If the die-casting process (such as preheating temperature) is further improved, the temperature difference between the surface of the die-casting mold and the interior is relatively large, resulting in thermal stress caused by different changes in the volume of the inner and outer layers, which may have a certain effect on the preheating of the mold before use. In addition, the single-weight and light-weight parts of die castings will cause less thermal load on the mold, which will also help increase the life.
Tungsten copper temperature resistant conductive parts
Application: high temperature resistant conductive parts and base of equipment.
Tungsten Copper Contact
Application: high voltage switch, circuit breaker, contactor, arrester, etc.
Contact material
Application: high voltage switch, circuit breaker, contactor, arrester, etc.
Tungsten copper rolled steel guide guard baffle
Application: guide and guard baffle in steel wire production
When the steel is hot rolled, the surface temperature of the guide and guard is increased (about 700～800℃, including the conduction heat of the hot billet and mutual friction heat), the guide and guard must withstand high temperature friction and high temperature oxidation, and the temperature increases and decreases (water cooling) Expansion stress has many tests; in addition, the steel itself oxidizes rapidly in the hot rolling temperature range, and the oxide scale produced on the steel surface falls off during rolling, and abrasive wear occurs when the steel and the guide guard move relative to each other. Under the influence of the above comprehensive factors, the steel rolling guide and guard were made of cast iron, nickel-chromium alloy and cemented carbide in the past. After the use of copper-tungsten alloys, the service life is about 3 to 4 times longer, and the phenomenon of “sticking to steel” is rarely seen, that is, metal adhesion wear is greatly reduced. This not only reduces the consumption of the guide guard itself and the number of times to replace the guide guard, but also improves the steel rolling operation rate. As there is little “sticking of steel”, it reduces the damage on the surface of the steel, improves the quality of the surface of the steel, and eliminates the serious “stacking” accident caused by the “sticking of steel” during steel rolling.
Copper-tungsten “alloy” guide guards replace nickel-chromium alloys, especially hard alloy guide guards that are generally considered to be high in hardness and wear resistance. The reason is that the characteristics of the aforementioned “alloy” adapt to the work of making rolling steel guide guards. Claim.
Tungsten copper is formed by isostatic pressing-high temperature sintered tungsten skeleton-copper infiltration process. It is an alloy of tungsten and copper.