CN203200376U

CN203200376U - Deformed backing ring for sapphire crystal growth crucible

Info

Publication number: CN203200376U
Application number: CN 201320161319
Authority: CN
Inventors: 刘海滨; 方建雄; 李呼相
Original assignee: SUZHOU HYPERION CRYSTAL CO Ltd
Current assignee: SUZHOU HYPERION CRYSTAL CO Ltd
Priority date: 2013-04-02
Filing date: 2013-04-02
Publication date: 2013-09-18
Anticipated expiration: 2023-04-02

Abstract

The utility model discloses a deformed backing ring for a sapphire crystal growth crucible. The deformed backing ring for the sapphire crystal growth crucible is of an annular structure, and the annular width of the lower end face of the deformed backing ring for the sapphire crystal growth crucible is lower than 10mm, so that when the crucible is used, the lower end face of the deformed backing ring is positioned on the upper end face of a crucible wall, and a crucible cover is supported by the upper end face of the deformed backing ring. The deformed backing ring, which is in contact with the upper end face of the crucible wall through the lower end face of the backing ring that is relatively small in surface area, can greatly reduce adhesion of a crystal to the crucible cover, thus achieving the recycle of the crucible cover.

Description

The special-shaped gasket ring of the long brilliant crucible of sapphire

Technical field

The utility model relates to a kind of crystal production instrument, especially prevents the special-shaped gasket ring of crucible cover and crucible adhesion.

Background technology

The synthetic sapphire crystal is that sapphire crystal hardness is very high, for 9 grades of Mohs' hardness, is only second to the hardest diamond, has good light transmission and electric insulating quality, the mechanics good mechanical property.The synthetic sapphire crystal has been widely used in many fields of science and technology, national defence and civilian industry, electronic technology as a kind of important techniques crystal.

Long brilliant crucible is the main tool of producing sapphire crystal at present; but because the long brilliant temperature of sapphire crystal is very high; the common employing of Sapphire Crystal Growth is melted alumina raw material then in the refractory material crucible, and decrease temperature crystalline carries out; place a crucible cover on the crucible top; can reduce the volatilization of melt in the crucible; play insulation effect simultaneously; but because melt often evaporates between the gap of crucible cover and sidewall of crucible; can cause the adhesion of crucible cover and crucible after the crystallization, when getting crucible cover, be easy to cause crucible cover damaged and can't reuse like this.

Summary of the invention

Goal of the invention: at the deficiencies in the prior art, the applicant has designed the special-shaped gasket ring of the long brilliant crucible of sapphire through long-term practical exploration.

Technical scheme: in order to realize the foregoing invention purpose, the technical scheme that the utility model adopts is: the special-shaped gasket ring of the long brilliant crucible of sapphire, the long brilliant crucible of described sapphire is annular with special-shaped gasket ring, and described sapphire is grown brilliant crucible with the annulus width＜10mm of special-shaped gasket ring lower surface.When using crucible, the lower surface of this device is positioned over the sidewall of crucible upper surface and utilizes the upper surface carrying crucible cover of this device, so just can reduce crucible and crucible cover.

Distance between described upper surface and the lower surface is 2-10mm.

The long brilliant crucible of described sapphire can use tungsten, molybdenum or miramint to make with special-shaped gasket ring.The applicant provides a kind of optimal way, namely uses tungsten.

Beneficial effect: the utility model compared with prior art, its beneficial effect is:

1, the utility model utilizes the less lower surface of gasket ring surface-area to contact with sidewall of crucible, can reduce the phenomenon that crystal is attached to crucible cover significantly, and can take off this device easily, realizes repeatedly utilizing;

2, after the crucible of production sapphire crystal is installed the utility model, can behind long brilliant the end, take off crucible cover easily, cause the adhesion of crucible cover and crucible after the crystallization that prevents from effectively volatilizing;

3, the utility model will carry upper surface area design bigger of crucible cover, crucible cover that can adaptive multiple size.

Description of drawings

Fig. 1 is the structural representation of the long brilliant crucible of the utility model sapphire with special-shaped gasket ring.

Fig. 2 is the structural representation in the utility model inverted triangle cross section.

Fig. 3 is the structural representation of the utility model trapezoid cross section.

Embodiment

Below by a most preferred embodiment, the technical program is elaborated, but protection domain of the present utility model is not limited to described embodiment.

As shown in Figure 1, the special-shaped gasket ring of the long brilliant crucible of sapphire, the long brilliant crucible of this sapphire is annular with special-shaped grommet design, have upper surface 1 and lower surface 2, described upper surface 1 carrying crucible cover, described lower surface 2 contacts with the sidewall of crucible upper surface, the annulus width＜10mm of described lower surface 2.Distance between described upper surface 1 and the lower surface 2 is 2-10mm.

As shown in Figure 2, the utility model provides a kind of design again, and namely the long brilliant crucible of sapphire is the shape of inverted triangle with the Cross section Design of special-shaped gasket ring.

As shown in Figure 3, the utility model can also be trapezoidal with Cross section Design, can guarantee better that like this gasket ring is placed in the stability on the sidewall of crucible.

In order to reach the purpose that increases the service life, the long brilliant crucible of described sapphire can use tungsten, molybdenum or miramint to make with special-shaped gasket ring.The applicant provides a kind of optimal way, namely uses tungsten.

The above only is preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. sapphire is grown the special-shaped gasket ring of brilliant crucible, and the long brilliant crucible of described sapphire is annular with special-shaped gasket ring, comprises upper surface (1) and lower surface (2), it is characterized in that: the annulus width＜10mm of described lower surface (2).

2. sapphire according to claim 1 is grown the special-shaped gasket ring of brilliant crucible, and it is characterized in that: the distance between described upper surface (1) and lower surface (2) is 2-10mm.