Tungsten carbide ball has high hardness, wear resistance, corrosion resistance, can replace all the steel ball products in harsh environment. Tungsten carbide ball for pen is often used in producing ballpoint pen. Furthermore its surface condition has an important impact on the writing performance.

Describe the surface condition of the tungsten carbide ball for pen has two aspects, one is the surface roughness, and second, the ball surface and pore size distribution. Any type of tungsten carbide ball for pens to achieve good writing requirements, must have a low surface roughness and uniform fine pores. And throughout the writing process, tungsten carbide ball for pen is relatively stable characteristics can be maintained for a long time, and change little. When such writing can effectively reduce wear between the ball and the ball seat, capillary action through the porous ink is slowly taken out continuously while the excess ink back to the ball seat body, to ensure the stability and excellent writing property.




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In tungsten's raw form, it is a hard steel-gray metal that is often brittle and hard to work. If made very pure, tungsten retains its hardness (which exceeds that of many steels), and becomes malleable enough that it can be worked easily.

Tungsten heavy metal has the highest melting point and the lowest vapor pressure among all the metals, which makes it a preferred candidate for use as a high performance material in a variety of high temperature products and processes.

Tungsten heavy metal is resistant to corrosion when the humidity is below 60%. However, it must be protected at elevated temperatures. Tungsten heavy metal can oxidize in the presence of oxidizing gases at temperatures above 250°C. Despite this vulnerability, molten glass, nitrogen, inert gases, molten metals and ceramic oxides only slightly affect it.

Widely and extensively used in lighting industry, electronics, military equipment, nuclear, mechanical manufacturing, aircraft components, medical shields, and sports equipment. Tungsten Heavy metal has excellent radiation resistance, electric and thermal conductivities, corrosion resistance with high density (16.5-18.5 g/cm3) and good mechanical strength. Tungsten heavy metal also has small coefficient of expansion and large elastic modulus.




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Paraffin wax and rubber are most widely used in the tungsten carbide ball material production process of forming agent, but because of poor formability paraffin and tungsten carbide ball after a serious increase carbon rubber sintering, people are trying to find a new shape agent to replace the two polymers, hopes that the new wax forming agent both "clean" and rubber excellent formability characteristics, which can improve the tungsten carbide ball hardness and toughness .

Recently, the development of new carbide-forming agents there are two points: first, the "class paraffin" type, this forming agent to maintain the advantages of paraffin and improve its formability on this basis, so that it can improve the tungsten carbide ball properties, such as: the development of a low-melting wax, paraffin wax modification, paraffin wax and beeswax, ozokerite and polymer combination and the like. The second is "rubber" type, the purpose of this is to reduce its forming agent increases the amount of carbon on the basis of merit to keep the rubber, thus ensuring tungsten carbide ball hardness and toughness, mainly PVA, PS, SBS, SBP, SIS and so on.




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Tungsten carbide ball has high hardness, wear resistance, corrosion resistance, can replace all the steel ball products in harsh environment,. According carbide components, tungsten carbide ball can be divided into five categories:

1. Tungsten carbide balls have most varieties, the largest output, and the most widely used.
2. Titanium carbide ball including TIC-Mo-Ni, TIC-WC-TaC (NbC) -Mo-Ni series. They have high hardness, is mainly used for finishing of steel and super finishing.
3. The coated cemented carbide ball which is deposited a layer of titanium carbide, titanium nitride, or a composite of both the oxide and the like on the first type of carbide blade surface.
4. Steel base carbide ball is made of steel or tungsten carbide chin as hard phase, which is characterized by heat treatment can be carried out, in the annealed condition, can be cutting, easy preparation various shapes of complex products.
5. Other carbide ball including chromium carbide based cemented carbide ball, carbo-nitride carbide ball, Carbonation Chin alumina carbide ball, etc., they have different characteristics, and is under development.




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In 1781, Carl Wilhelm Scheele discovered that a new acid, tungstic acid, could be made from scheelite (at the time named tungsten). Scheele and Torbern Bergman suggested that it might be possible to obtain a new metal by reducing this acid. In 1783, José and Fausto Elhuyar found an acid made from wolframite that was identical to tungstic acid. Later that year, in Spain, the brothers succeeded in isolating tungsten by reduction of this acid with charcoal, and they are credited with the discovery of the element.

In World War II, tungsten played a significant role in background political dealings. Portugal, as the main European source of the element, was put under pressure from both sides, because of its deposits of wolframite ore at Panasqueira. Tungsten's resistance to high temperatures and its strengthening of alloys made it an important raw material for the arms industry.




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Bucking bar is used to form bucktails on rivets. And come in many different shapes and sizes. Tungsten bucking bar ,tungsten bar is normally made from an alloy steel similar to tool steel. The particular shape to be used depends upon the location and accessibility of the rivet to be driven.
 
Tungsten bar is used on the backside of a metal rivet to counter the force of the hammering on the other side. They also can be used to absorb the force of rivet guns, reducing the vibration of bucking.




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Some notable features of tungsten bucking bar are:

1.      Excellent durability, robust construction and supreme finish.

2.      The bars are made using tungsten alloy which has very high density.

3.      All the working bars have well rounded edges and smooth faces.

4.      They are ideal for applications that involve vibration damping.

5.      The tungsten alloys are mainly composed of 95% tungsten.

6.      The bars are designed with a 15 degree angle on one side.

7.      Tungsten barscan also be manufactured to match your particular requirements.

8.      These bars are specifically useful for bucking rivets.

9.      The bars may also be designed with a spacer for low-recoil impact absorption.

10.  The bars are manufactured using advanced state-of-the-art processes using high quality certified materials.

Tungsten bucking bar is used to manufacture a wide range of cutting tools for various industries. Apart from riveting operations, these bars are also essential when building aircrafts.




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In situations where working space is limited, tungsten bucking bar is the ideal option. These bars are twice as heavy as the conventional ones made of steel. This material allows you to create smaller bars that can fit perfectly in smaller locations. Although they may have a smaller size, their weight and mass is sufficient for the manufacture of high quality rivets. Apart from the small size for big density, they increase operator comfort by minimizing vibration.

Although these bars may cost substantially more than steel bars, they are worth every penny spent. The experience they offer is simply incomparable. A single tungsten bucking bar can replace several other bars made of steel. These bars are specifically polished on all surfaces to allow bucking on any surface of the bar. Radiused corners prevent any damage to materials.




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A bucking bar is a tool that is placed on a work surface or the backside of a metal rivet to provide a cushioning counter in order to hammer rivets on the opposite side. It can also be used in operations that require impact fasteners. This includes applications involving tool heads and handle parts that have low recoil absorbing space. The bar size and weight usually depends on the alloy used and the rivet size required.

In everyday use, bucking bars undergo considerable stress. The bars are meant to withstand the impact when rivet guns deliver their impulsive blow. If the supporting metal alloy is rather soft, the bucking bar will quickly wear out and the necessary assembly support will not be achieved. On the flip side, if the metal alloy is very hard and brittle, the bucking bar will soon get fractured. Striking a balance between the tendency to crack and overall hardness is vital for success.

Recent research results indicate that bucking bars made of tungsten provide extra safety for operators through vibration reduction. Operators also get less fatigued and their chances of injury are significantly reduced. The density of tungsten is a reliable property that makes it ideal for future designs of bucking bars. Most bucking bar designs contain 90% tungsten. Deburred edges and polished working surfaces ensure trouble-free use.




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Many companies use steel in the manufacture of their bucking bars, but often this material does not sufficiently absorb the force or deaden the vibration and there is a still a risk to the user.

Tungsten alloy can be used in the manufacture of either the entire bucking bar or just the impact face, and is a much safer alternative than other materials. As tungsten is a very dense metal, a larger mass can be incorporated into a smaller area. The resultant extra weight is pivotal in decreasing the vibration felt by the worker.

Using tungsten bucking bars has been shown to visibly reduce the effects of vibration white finger, and consequently improves efficiency in the workplace. Studies have indicated that using Wolfmet can save workers up to three seconds per rivet.

Tungsten alloy can also be used for other tooling applications such as boring bars for machine tools and grinding quills.




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