What are pyrometer and where they are used ?

 

For drilling a glass we need special bits, so we break into thousands of pieces. Here you indicate how to do it

Cool glass to drill or the wick

Then mark the exact spot where we want to drill, we must encircle it with a ring of plasticine or Putty around and fill the enclosure with a little turpentine or kerosene, this is done to cool the glass.

Another easiest way is to do it directly with Wick, i.e., wet the tip of the wick with kerosene or turpentine.

The task of cooling is important because the wick overheat when drilling, and the glass may crack.

How to drill GLASS – Perfect holes! SUPER simple!

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Fix the glass and drill

Now, we will set up well the glass so not we move during drilling (in the event is no longer a window glass subject, but one loose). For that, we should support it on a flat base.

Finally, be drilling at low revs, and pressing gently drill, to move it forward slowly and thus prevent splitting the glass.

So how to drill glass

First of all, we need to decide which drill bit is suitable for us to process glass. After all, the tools used, for example, for iron, in this case are not suitable – they will simply break the glass.

That is why we will need an unusual drill bit that has an arrowhead to get a hole in the glass. Such devices are covered with a unique coating, which allows not just drilling, but as if to remove one layer after another from the surface, confidently thinning it.

In addition, there are so-called tubular drills, in which the cutting part is covered with small diamonds. They are ideal for glass or tiles. We will not be able to do without this tool when we need to make a large hole.

And which tool to choose for such a drill? To be honest, the simplest drill will do, which provides for adjusting the speed of rotation (this is necessary because we will work at extremely low revs).

As for tempered glass, we will not even try to drill it – it will certainly deteriorate. But if you really need it, then seek help from specialists.

How to drill a hole in the glass

Despite the fact that making holes in the glass at first seems like a daunting task, which is only by a professional , in fact it can cope with anyone who has the skills a little repair. However, just drill a glass drill bit will not work – otherwise it will crack . There are several ways to drill the glass so that it is not cracked , and we consider here the two of them , the most common .

For the first method of drilling materials such as turpentine and alcohol, and tool – drill and drill for metal. To drill the glass, it must first be put on a table or any other flat surface to prevent it from cracking. The edges of the glass in any case should not hang on even 1 mm .

The speed of rotation of the drill should be minimal – usually it is marked as a unit . After clamping drill chuck should check it for run-out – with a strong heartbeat so you can not drill to drill glass , or cracked . Thereafter, the glass surface should be degreased with alcohol or acetone.

Next drill is placed in the center of the place in which to drill a hole and turns in the process of drilling at this site should drip turpentine . Drill in no way be strongly pressed to the glass. Sometimes this place is surrounded plasticine ring within which pre- poured turpentine .

How to choose the right drill

The second method is known for a very long time. For this method require wet fine sand and fusible material such as lead or tin , and a sharpened cone coli, with the end cone to the size of drill holes .

To use it, you first have to degrease the surface with alcohol in the right place , then sprinkle on the sand hill this place a height of about three centimeters. With a stick in the sand doing is smooth funnel the required diameter . After that, the funnel is filled with molten solder, and after a while , which is approximately two minutes from the surface of the glass is removed from the frozen sand cone , and it forms the desired hole. Before you use this method a good practice first on the wrong shard of glass as well can not get the first time.