CN2625023Y

CN2625023Y - Sheet catalyst for synthesizing diamond

Info

Publication number: CN2625023Y
Application number: CN 03227686
Authority: CN
Inventors: 张树芳; 陈建海; 赵彬强
Original assignee: HUNAN SANY NEW MATERIAL INDUSTRY Co Ltd
Current assignee: HUNAN SANY NEW MATERIAL INDUSTRY Co Ltd
Priority date: 2003-05-20
Filing date: 2003-05-20
Publication date: 2004-07-14
Anticipated expiration: 2013-05-20

Abstract

The utility model discloses a flaky catalyst for synthetic diamonds. The flaky catalyst has the thin and shallow shape and its thickness is 0.1 to 0.25 mm. The utility model makes the shape of the existing flaky catalyst become thin and shallow, which obviously improves the yield per unit, the quality and the thermal stability of diamonds; at the same time, the precious metals are saved due to the reduction of usage amount of the catalyst materials, which has the very obvious economic benefits.

Description

The diamond synthesis slice catalyst

Technical field:

The utility model relates to a kind of diamond synthesis slice catalyst.

Background technology:

Since the nineties, diamond synthesis uses the thickness of slice catalyst just always between 0.5-0.4mm.In recent years, more than 90 percent enterprise all adopts the slice catalyst of 0.4mm thickness, because in the intrinsic idea of people, this thickness is the thickness that can not go beyond again from present material installation and technology, therefore people are in order to increase per unit area yield, all on the place face of catalyst contact carbon plate, work hard and study, as Chinese patent " diamond synthesis catalyst ", the number of applying for a patent is ZL:98235222, increase the contact area of catalyst and carbon plate by the surface roughness that changes catalyst, attempt to reach the purpose that increases per unit area yield like this, its effect is unconspicuous obviously.

The utility model content:

The purpose of this utility model is to provide a kind of diamond synthesis slice catalyst that can effectively improve per unit area yield.

The technical scheme that the utility model is taked is: make diamond synthesis have more flat thin shape with slice catalyst, thickness is 0.1-0.25mm.

Inventor of the present utility model proves by repetition test, adopts existing material installation and technology to realize that the technical scheme that the utility model proposes can reach fully, has from then on broken through the constraint of outdated ideas.Because will having the shape of slice catalyst now, the utility model becomes flat thin, make the group number of single synthetic rod assembling carbon plate and catalyst increase, reduce the consumption of catalyst material simultaneously, therefore on the one hand because the increase of the installation group number of synthetic rod, increased the contact area of catalyst alloy and carbon plate, help adamantine homogeneous nucleation and growth, significantly improve per unit area yield and quality and adamantine thermal stability, save noble metal owing to the catalyst material consumption reduces on the other hand, had very significantly economic benefit.

Description of drawings:

Fig. 1 is a side view schematic diagram of the present utility model.

The specific embodiment is given an example:

As can be seen from Figure 1, the utility model has had more flat thin shape than prior art, present embodiment is one and is used for being installed in the slice catalyst that diameter is the 38mm synthetic cavity, thickness is 0.18mm, it is flat thin that its shape is compared with prior art obviously wanted, carbon plate (thickness the is 1.0mm) intersecting of itself and prior art is loaded in the synthetic rod cavity, can adorn 24 groups, per unit area yield can reach 50 carats, and use catalyst material weight only is 37.8 grams, if but with onesize synthetic rod cavity, load onto prior art catalyst (thickness is 0.4mm) and carbon plate (1.0mm) and can only adorn 20 groups, 42 carats of per unit area yields, and the catalyst material weight of using restrains up to 70, and two compare present embodiment than 8 carats of the relative raisings of prior art per unit area yield, promptly improve 19%, save catalyst consumption (weight) 32.2 grams, promptly save 46%.In fact this is one and the catalyst shape is become flat thin back improves many good effects that the catalyst utilization rate is brought.

The utility model slice catalyst of several embodiments in addition has the flat thin shape that thickness is 0.1mm, 0.14mm, 0.2mm, 0.22mm, 0.25mm respectively, the synthetic cavity that still with the diameter is 38mm is an example, the carbon plate mistake that they and 1.0mm is thick is laminated in the group number that can reach in the synthetic cavity and is respectively 26,25,24,23,23,22 groups, can reach per unit area yield (unit: carat) respectively: 52,50,47,44, apparently higher than the prior art per unit area yield.

Claims

1, the slice catalyst used of a kind of diamond synthesis, it is characterized in that: this slice catalyst has more flat thin shape, and thickness is 0.1-0.25mm.

2, the slice catalyst used of diamond synthesis according to claim 1, it is characterized in that: described thickness is 0.14mm.

3, the slice catalyst used of diamond synthesis according to claim 1, it is characterized in that: described thickness is 0.18mm.

4, the slice catalyst used of diamond synthesis according to claim 1, it is characterized in that: described thickness is 0.2mm.

5, the slice catalyst used of diamond synthesis according to claim 1, it is characterized in that: described thickness is 0.22mm.