Tungsten carbide wood working drill bits are used for drilling into wood and some plastics. The bit is normally black in color and the tip of the bit has a raised spur or sharp point. This is used, before drilling, to place the point exactly where you want to drill the hole and using a bit of force to push the point into the wood to stabilize the bit before drilling. This will also ensure, while drilling, that your bit goes straight into the wood without running around and damaging the wood. You can use a variable speed drill for these bits but make sure the drill is not on the hammer position else you will damage the wood and the tip of the drill bit.

Here we introduce some commonly used types of wood working drill bits as follows:

1.Brad-Point Bit: A brad-point bit is designed for boring into wood. The brad at the center of the bit tip helps position the bit precisely for accurate drilling and produces a clean exit point in the work piece. The flutes — grooves that wrap around the bit and channel away chips and dust — are extra-wide to remove more material.

(To be continued. This article is divided into several parts and this is part 1, for part 2 please refer to http://news.chinatungsten.com/en/tungsten-information/80239-ti-10316)

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Tungsten carbide masonry drill bits are most commonly used in the home. The Masonry drill bit is generally silver in color and the tip looks spade like and the tip is normally painted red. They are used for drilling into brick, block, stone, quarry tiles or concrete. The cutting tip is made from tungsten carbide bonded to a spiraled steel shaft. These bits are used with a hammer action drill with or without speed variation, depending on what you are drilling into. Beware of cheap masonry bits as they will tend to break, shatter or even melt from too much force or heat that they generate. It is good to make sure that when you buy masonry bits that you talk to your hardware dealer and get the best option on masonry bits available.

Use a variable speed drill when drilling into harder surfaces. The harder the surface, the slower you set your drill speed. This will prevent the bit and the drill from being damaged and always make sure that when drilling with tungsten carbide masonry drill bits that you drill is set to the hammer action. This moves the bit back and forth while drilling in order to pound the surface to gain more depth without any damage.

You can use a masonry drill bit to drill into ceramic tiles. Should you do this, make sure that the hammer switch is in the off position and drill into the tile at a slower speed to prevent the tile from cracking.(The End )

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Hexagonal ammonium tungsten bronze, (NH4)0.33–xWO3–y, is a possible constituent of the intermediate “tungsten blue oxide” in non-sag (NS) tungsten production and a material of chromogenic and sensor interest. Its formation has been studied by in situ high-temperature powder X-ray diffraction (HT-XRD) accompanied by semiquantitative phase analysis through the partial thermal reduction of ammonium paratungstate tetrahydrate, (NH4)10[H2W12O42]·4H2O, in flowing 10 % H2/He. The effect of the heating program on the formation of the title compound has been discussed. Highly crystalline, monophasic hexagonal ammonium tungsten bronze prepared by partial reduction of ammonium paratungstate tetrahydrate has been characterised by high-precision powder XRD, X-ray photoelectron spectroscopy (XPS), chemical analysis and solid-state 1H NMR spectroscopy (1H-MAS-NMR).  

 

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In last part we know that compared to steel tools, tungsten carbide tools, or various other even tougher cemented carbide tools, have absolute advantages in wear or heat resistance which increases work efficiency. Here we talk about the advantages of tungsten carbide tools verse diamond tools.

A number of mining products also contain an element of diamonds in them and given that diamonds are the toughest material that you can find, it makes the work pass an awful lot quicker. The only problem with using diamonds comes with the cost of these tools as diamonds represent a large outlay. It is still likely that the use of tungsten carbide tools provides far better value for money and it is not as if the finished results from using this style of tool is poor, it is not just as good as the best tool available!

If money and scarcity was no object, diamonds would be in use everywhere in the mining industry but it would be wrong to dismiss or overlook the importance of tungsten carbide tools. When used in a drill bit, the drill bit provides a much better return, with respect to time and durability than standard steel. The fact that anyone looking to cut through steel will regularly turn to a tungsten carbide tool indicates everything you need to know about the power and reliability of tungsten carbide.

The consistency of tungsten carbide in the relentless conditions down a mine makes it the natural choice for any work in this sector.

(The end-This article is divided into 3 parts and this is part 3, for part 2 please refer to http://news.chinatungsten.com/en/tungsten-information/80170-ti-10296 )

Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
Tel.: 86 592 5129696; Fax: 86 592 5129797
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