Tungsten carbide gun drill is a straight fluted drill with coolant holes in drill’s body, which is able to let cutting fluid like compressed air and suitable liquid to be introduced through a small hole within the tool. Compared with the metal tips, it adopts carbide tips to lower the total cost and extend the service time. The coolant hole in the hollow body plays roles of removing the cutting chips and offering lubrication as well as cooling to the cutting edges.



Tungsten carbide gun drill owns ability to drill long straight holes no matter in metal, plastic or wood. Differently from standard twist drill, gun drilling finely solves the problem related to drill holes with accurately size and straight. Gun drilling was well developed and available to drill a long and straight hole over a range of depths and diameters.


Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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The deep hole drilling processes are separated by the ways cutting coolant removes heat and flushes the chips. Generally ,While using tungsten carbide cutting tools, the deep drilling types are fallen into three categories,

Gun Drilling

The tungsten carbide cutting tool is a fluted solid rod uses carbide tips and recognized as a straight fluted drill with ability to offer the coolant entry and chip removal. Coolant is injected through the center hole, when it flows back outside the drill, the chips and the heat are removed.

Boring and Trepanning Association

The tungsten carbide cutting tool is a tube. Coolant enters around the cutting tool surface and removes the chips out through the center tube. The acceptable minimum sizes of diameter is over15.6mm ,since the technology limitation.BTA drilling becomes more effective than gun drilling around a 50mm hole diameter.

Ejector System

The cutting tool is a set with two nested tubes.Coolant is carried through the smaller tube to the cutting face and the cutting chips are removed via bigger tube.


Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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Tool Holder Selection

The recommended  types of tool holder for the tungsten carbide cutting tools comprise collet chuck, side handle and hydraulic chuck. On the contrary, quickly change chuck is not suggested.



Proper Cooling Process

In order to ensure the tungsten carbide drill bits could work functionally, special attention needed to be paid to the directional combination of cooling as well as the upper and lower echelon configuration during the external cooling. In terms of inner cooling, the pressure and flow rate are the vital parts. Attention also needed to be draw for the leakage of the cooling liquid.

Beside all the aspects listed above, the right drilling technology also play an important role in the selection procedure.


Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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As one of the most popular solid carbide cutting tools , tungsten carbide drill bits are widely used in various machining processes.Understanding how to correctly use the drill bits could improve the efficiency of the working process and also making all the material resources into good account. The aspects related to correctly use tungsten carbide drill bits include,



Right Machine Tool Selection

High power and good rigidity are the characteristics of machine tools suggested to be contained. The low power and poor precision ones like radial drill and universal milling machine should not be in the list of machine tools selection,as they may easily cause the tungsten carbide drill bits deformation and breakage.


Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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4.The tungsten carbide cutting tools must be away from corrosive atmospheric and properly stored in a dry environment after use.

5.When using tungsten carbide cutting tools some cutting chips might be generated, for safety consideration, the labor protection articles and use instruction are required.



6.Cutting fluid is recommended, since its related to the tungsten carbide cutting tool lifetime , to an extend.

7.If the cracks occurred during cutting process, stop using the cutting tools.

8.Let the specialists grind the tungsten carbide cutting tools, when there’s an edge passivation or strength reduction .
 

Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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Each year, the worldwide tungsten carbide industry generates large amount of scrap because of the parts rejected at different stages of the manufacturing and worn-out or broken tungsten carbide cutting tools.

Differently from basic recycling approach of scrap pieces, instead of breaking them into powders, the chemical approach (Zinc recovery process, electrolytic recovery and etc.) could solve some problems including avoiding the recycling equipment wear. But the there is still a considerable shortcoming related to the recycling rate of WC-Co, which is less than 20%. The improved method in nowadays is using molten-zinc (Zn) bath to recovery WC and Co from the hard cutting-tool scraps.


Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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Tungsten sputtering target is made of tungsten powder, can be used in solar cell coating, tool and mould coating, glass coating or high temperature resistance, wear resistance, corrosion-resistant in high-grade decorative items and other industries.

Tungsten sputtering target is made of tungsten powder, can be used in solar cell coating, tool and mould coating, glass coating or high temperature resistance, wear resistance, corrosion-resistant in high-grade decorative items and other industries. Because fossil fuel resources are dwindling today, people gradually turned to solar energy, which is mainly turning sun (light energy) into electricity and heat.

Today, solar cells have been developed to the third generation (thin-film solar cells), and sputter coating process is the first to become a preparation method, which is preferred. With the development of low-carbon economy, solar cells coated with tungsten target have become a worldwide supplier of all targets product development focus. Solar cell coating show explosive growth, statistics show that from 2005 to 2007, installed capacity of solar cells at annual rates of: 23%, 40%, 67%. Commonly used decorative coating materials are:  tungsten, zinc oxide, and molybdenum.

 

Tungsten Metals Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten.com.cn
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Tungsten carbide cutting tools are being widely applied in different industries and areas, during the usage there are several tips that could be taken into consideration.


1.Tungsten carbide cutting tools are easy to be broken while under too much force or specific local stress, since they are made from hard and brittle material. It will be quite dangerous, if a broken part of  the tungsten carbide cutting tool, which has a sharp cutting edges on it.

2.For most of tungsten carbide cutting tools, tungsten and cobalt are the two dominant components. So the cutting tools are always in high density. During the transportation and storage, special attention needed to be paid.

3.As the thermal expansion coefficient is different between tungsten carbide cutting tool and that of steel, proper temperature during the welding processes should be strictly controlled, in case of stress concentration that would cause cutting tool’s rupture.    


Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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Tungsten sputtering target are showing rapid growth in domestic and international market, technologies and services are equally important to the development of tungsten sputtering targets. Technical force is one of the determinants, of course, tungsten sputtering target industry will achieve the right to speak in the market competition if they own diverse product range and distinctive tungsten sputtering targets. If they can also provide high quality before and after sales service to coating manufacturers, which will undoubtedly achieve a great success.

Implementation of low-carbon economy is more and more widely nowadays, which makes energy-saving environmental protection has become an important strategic factor in business development must be considered. Tungsten sputtering targets belonging to the environmental protection industry, on the one hand is the development of the times, the other is to establish a good corporate image, in order to win customers. In general, tungsten sputtering target industry prospects, due to the rapid development of coating industry, market expansion and a sharp increase in demand, which is undoubtedly the rapid development of tungsten sputter target markets act as a catalyst.

 

Tungsten Metals Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten.com.cn
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Tungsten target also namely tungsten sputtering target, which is applied to solar, glass, LCD, LED and electrical industries, owns silver white metal luster brightness, fixed to the spacecraft so the instruments on the movable scan platform (cameras, infrared instrument, etc.) can point to a predictable target for calibration purposes.

 Tungsten targets are joined to graphite substrates by a brazing method employing a controlled atmosphere and a suitable braze material such as platinum and an alloy of platinum and chromium.

Application:

 Fixed Anode Target

The dimension of fixed anode target in our company:

Diameter: φ20-φ30mm;

Thickness: ≥2mm;

Density: ≥18.6g/cm3.

This kind of tungsten target is made of FW-1, which is mainly applying to producing X-Ray tube fixed anode Target.

 Rotating-Anode Target

Our tungsten target is made of material which material Grade is FW-1, FMo-1.Products main property is: Tungsten density≥18.6g/cm3, Molybdenum≥9.8g/cm3, un-balance is less than 2cm.

1. Mo-base Tungsten Target
Dimension is φ52.5～φ100

2. Rhenium-Tungsten Target
Rhenium is well-proportioned in tungsten, so this model has nicer machining property and high-temperature property. We can design different dimension and Rhenium purity according to your drawing.

3. Black-coating Tungsten Target
Black-coating Target is a kind of new products which has a kind of black-coating on molybdenum base, produced by our company in recent years. Now no other company can produce this product at home. This target has nicer efficiency of heat-radiation , the time of heat-sinking, so this product has longer life. We can produce various black-coating targets according to your requirement.

 

Tungsten Metals Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten.com.cn
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