Rus Articles Journal

Than process diamonds?

Ya think, you should not tell about that, diamond is how solid. In total and so know that diamond - the most solid substance from all, meeting in the nature. But all, at the same time, know that diamonds cut, grind, facet, polish. Than? What can cope with this supersolid substance? Only diamond.

That if to rub one rough diamond about other, their side are ground and gloss both increases, noticed in ancient India. In Europe began to facet diamonds much later, in the XIV-XV centuries. In the middle of the 15th century the jeweler of the Burgundian duke Ludwig van Berkem for the first time facetted diamond which received the name " subsequently; Sans .

In the 17th century diamonds learned to saw. The first saws represented an iron wire which surface the sharzhirovana was (saturated) with diamond powder. Sawing of large diamonds lasted long, for example, " diamond; Regent the weighing 410th carat, about two years sawed, spending a huge amount of diamond powder.

Now diamonds cut on special machines by means of quickly rotating bronze disks 0,05 - 0,07 mm thick. On disks give suspension of diamond powder. Modern installations provide application for an intensification of cutting of diamonds ultrasonic, electroerosive, laser and other types of processing.

The most difficult and responsible process at production of diamonds of diamonds is the facet. It is made by means of quickly rotating disk from a copper alloy in which vpressovana small diamonds, or a pig-iron disk in which surface rub the diamond powder divorced in burdock or olive oil.

At the same time the form of a stone and an arrangement of sides in it are done so that the incident light did not pass through a stone, and, having undergone full reflection from internal surfaces of sides, would come back, providing game light.

A facet of diamonds - extraordinary difficult and labor-intensive process. Large stones facet for months, and unique - till some years. The mass of diamond from this operation is cut by half or three times, also its cost in proportion grows.

Therefore before starting a facet of large diamonds, carefully shorthand a form of future diamond which will provide the best game also will allow to keep the mass of an initial stone as much as possible. Now for this purpose use computers which as much as possible facilitate a task.

It would seem, diamond - a faultless stone. But also it has shortcomings. It is chemically active in relation to iron and nickel. At the increased temperature it forms with them solutions of introduction and collapses. That is it is impossible to cut diamond steel at a high speed.

Diamond is powerless even against soft iron. Heating up in the course of cutting, iron begins to dissolve in large numbers in itself carbon. Thereby it eats the most solid material in the world.

However, any shortcoming can be turned into advantage. This simple chemical reaction can be used for processing of diamonds. Such property of unapproachable diamond allows to cut easily it the heated steel wire.

If to put the iron cutter heated to 1000 C to diamond it will begin to dissolve in itself(himself) carbon, plunging deep into diamond with a speed up to 0,3 mm an hour. Changing a cutter head form, it is possible to make the most difficult details of diamonds, for example, of the plug, gears and other irregular shape of a product which cannot be made in a different way.

In principle, on diamond it would be possible to write also this article, there would be a diamond of the suitable sizes and the heated tack!