METHOD OF DIAMONDS MAKING

The invention deals with artificial diamonds production by means of explosion and results in obtaining materials with special properties. Diamonds are produced by means of graphite powder compacting in the capsule of the mold using simultaneous explosion of two special-form blasting charges directed to each other.

The invention deals with artificial diamonds production by means of explosion and can be used to obtain materials with special properties.

There is a method of making diamonds and diamond-like materials (patent of the RF #2051093, С 01 В 31/06, 21/064, В 01 J 3/08, 1995.) which includes carbonic materials compacting in the chamber by means of simultaneous explosion of two blasting charges placed on the opposite ends of the blank.

The drawback of this method is the fact that compacted carbonic blank is freely placed in the chamber and this hinders from obtaining a big diamond crystal.

Also there is a method of making diamonds (patent of the RF #2124079, С 30 В 29/04,

В 01 J 3/08, С 01 31/06, 1998) when graphite powder is calked in the capsule of the mold and compacted by means of the explosion of a blasting charge according to calculated compacting process parameters.

The drawback of this method is absence of directed heating from the explosion and, hence, one-sided compacting of the graphite powder.

In our method these two drawbacks are eliminated because the graphite powder is compacted using simultaneous explosion of two blasting charges of a truncated cone shape placed on both ends of the capsule. There is a cavity on the smaller base of each charge facing the end of the capsule.

Our method if compared with the other two gives the best solution to the problem of obtaining high quality diamonds.

The essential feature of the method claimed is calking and compacting of the graphite powder in the sectional capsule of the mold using simultaneous explosion of two blasting charges directed to each other.

The mold for making diamonds is presented in Fig. 1, 2:

Fig. 1. Assembled mold before graphite powder compacting.

Fig. 2. Assembled mold after graphite powder compacting.

The mold consists of case 1 in which bush 2 and capsule 3 with graphite powder 4, screws 5 with blasting charges 6, electric detonators 7 and cardboard bushes 8 are placed.

Bush 2 is comprised of two parts with cutoff points along the axis and has a ring riffle 9 inside. Capsule 3 is made of two parts 10, 11 inserted in each other. These parts have ring lugs 12 on the bases of their cylinders. In the screws 5 there are cavities 13 for blasting charges 6 with electric detonators 7 and channels 14 for power cables.

Blasting charges 6 of the truncated cone shape have cavities 15 on the smaller bases of each charge facing the end of the capsule 3.

According to the method diamonds are made in the following way.

The mold is assembled in accordance with Fig. 1; then blasting charges 6 are set off. The explosion leads to heating of parts 10, 11 of capsule 3 and graphite powder 4 inside and pressing the powder. Under the inner pressure of graphite powder 4 ring lugs 12 are introduced into the ring riffle 9.

After the gas pressure is released through channels 14 the mold is disassembled and the diamond crystal 16 is extracted

THE INVENTION FORMULA

The method of diamonds making includes calking and compacting of the graphite powder in the capsule of the mold using explosion of blasting charges according to calculated compacting process parameters. The distinctive feature of the method is compacting of the powder by means of the simultaneous explosion of blasting charges of a truncated cone shape placed on both ends of the capsule; there is a cavity on the smaller base of each charge facing the end of the capsule.

Source: http://web.vrn.ru/diamond/opisanie_e.htm