Tungsten Copper Hard Dart Tip

Tungsten Copper Hard Dart Tip  has been used for very long , and it has a variety of different types. Other common standard dart tip darts are embedded in hard metal darts dart barrel. This dart barrel can be made of brass or tungsten or tungsten-copper alloy. The main difference between the two metals is that twice the density of tungsten brass, under the same weight, hard tungsten darts are smaller than the diameter of brass. This means that, with respect to the brass darts, you can more easily be thrown darts three double hard tungsten region.

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Tungsten Copper Dart

Copper tungsten darts are made ​​of tungsten copper alloy , typically containing tungsten content of 70 % -80 %. Many types of darts , production materials are also varied. Tungsten copper and copper tungsten darts combines the characteristics of organized crime , excellent performance with high density and good processability. Tungsten Copper Dart with its unique advantages , gradually replacing copper darts. Copper -plated tungsten dart barrel and processed refined appearance overall slender , practical, to overcome the shortcomings of other materials darts , not damaged, and long service life .

Tungsten copper alloy is used in darts production because of tungsten and tungsten-copper alloy with copper features a high density material , and has good workability. Because tungsten copper alloy with high weight volume ratio , so there is a slim darts good manufacturing materials . The percentage used to produce tungsten content higher darts , darts more slender. Due to technical difficulties with the manufacture , 100% of the tungsten is present in the dart barrel . In fact, people buy all the " tungsten " darts are made of tungsten alloy . Tungsten copper rod is raw copper tungsten dart dart dart barrel .
Better toughness of tungsten copper dart , darts surface to copper, tungsten content which is generally 70% to 80%. Some darts players , especially old-timers , in use for some time in the future , like the kind of tiny grooves grip the metal surface.


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Tungsten Copper Sintering Phase

 Tungsten Copper  sintering  phase is made of high temperature liquid phase sintering tungsten powder and copper and mixing, pressing, sintering and prepared liquid process for copper tungsten composites. Traditional methond is usually higher than the melting point of the copper at the temperature above 300 ℃ what is the temperature of densified liquid sintering phase.The production process of sintering is simple, and there is a higher sintering temperature. The sintering time is long, and

the sintered density is low (only for the theoretical density of 90 to 95).Other shortcomings, can not meet the requirements. Therefore, in order to improve the density of the material after the liquid-phase sintering treatment step to be associated with increased pressure such as multiplexing, hot pressing, hot forging, etc., but it increases the complexity of the process, the application is limited. AK Bhallal8 et al prepared using explosive compaction of tungsten copper material, has good high temperature liquid phase sintering effect. In addition, the high temperature liquid phase sintering process of discovery, tungsten, copper powder particle size also affects the sintered tungsten-copper composite material density, the finer the powder, the higher the density obtained by sintering.

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Tungsten Copper Infiltration Method

The method of  tungsten copper infiltration is that tungsten powder is pressed into briquettes , calcined at a temperature to prepare a porous tungsten skeleton with a certain density and strength , and lower melting point of copper to melt infiltrated tungsten skeleton , whereby the denser methods tungsten copper materials. When the mechanism is a porous metal substrate wetting liquid , the liquid metal filling the pores of the porous tungsten skeleton capillary force in the gap along the particle flow ,

so as to obtain a denser material. This method can improve the toughness of tungsten copper materials. Infiltration prepared using high- density tungsten-copper composite material , its good thermal and electrical conductivity , but difficult to achieve tungsten skeleton and pore connectivity all the same size , and the infiltration of the product after it is difficult to ensure the distribution of copper uniformity , which is bound to affect the material properties. With powder plasticized near net shape technology development and modern science and technology to improve the shape of the complexity of the components required for the preparation of tungsten skeleton from a single conventional powder metallurgy molded and injection molding to extrusion direction. If the United States RM German , who used injection molding technology to prepare tungsten skeleton , get good results , they will be pre-prepared tungsten skeleton of calcined at 900 ℃ , at 1500 ℃ infiltration 9O ~ 120min, superior alloys obtained . Due to the excellent performance of the method for preparing tungsten-copper composite material , therefore the most widely used . However , this method is also a great lack of specific performance after infiltrating need to be machined to remove excess copper , increasing the cost of the machining sequence , reducing the yield , but also not conducive to the complex shape parts adopted .

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Tungsten Copper and Silver Tungsten Processing Considerations

Tungsten copper and silver tungsten alloy may be due to impact or excessive force and lack of processing load occurs in the production of thin-walled corners. Tungsten, copper and silver tungsten alloy products when making through-hole drilling
Please note coming through holes in the load force feeding, avoid processed lacking.
Tungsten, copper and silver tungsten alloy non-magnetic, Guang Yi Rong company clients before the job can be grateful to confirm the product has been firmly fixed.
2 EDM, wire cutting
Tungsten copper and silver tungsten product discharge wire cutting speed is relatively slow, is a normal phenomenon.

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Tungsten Copper Vacuum Contact Materials

Tungsten copper vacuum contact materials have very good machining properties and thermal shock resistance, due to the arcing contact and breaking contact, Tungsten copper vacuum contact materials within a few tenths of the time the temperature rises several thousand degrees Celsius. We produced the W-Cu contact material due to its excellent physical properties and is widely used.
Advantages: High ablation resistance, high toughness, good electrical conductivity, thermal conductivity. Good machinability.
Delivery status: copper, steel and other support links good variety of shapes W-Cu contacts
Semi-finished products: No infiltration processing of various casting materials; various contacts unprocessed, welded or brazed to the copper or steel support; welding or brazing process.

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Tungsten Copper

Tungsten copper materials composed of two elements. Tungsten and copper do not form a solid solution, an intermetallic compound is not formed, but the respective metal components independently and uniformly exists. So start called a "fake alloy", was also classified as "composite" in. Having a tungsten skeleton (skeletal density is generally 70% to 86% of theoretical density) tungsten copper material at high temperature, the molten
copper, the heat of evaporation and absorption of the surface of the substrate W has a cooling effect, as the human body to reduce sweating Like temperature, sweating is a metal material. Tungsten has a high melting point, high strength and high hardness, copper has good electrical conductivity, thermal conductivity and toughness, tungsten, copper and copper tungsten material consolidated performance with high value.



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