CN206173482U - Sapphire growth is heat preservation screen structure for stove - Google Patents
Sapphire growth is heat preservation screen structure for stove Download PDFInfo
- Publication number
- CN206173482U CN206173482U CN201621167536.3U CN201621167536U CN206173482U CN 206173482 U CN206173482 U CN 206173482U CN 201621167536 U CN201621167536 U CN 201621167536U CN 206173482 U CN206173482 U CN 206173482U
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- molybdenum
- heat protection
- protection screen
- screen body
- screw rod
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Abstract
The utility model relates to a sapphire growth stove technical field discloses a sapphire growth is heat preservation screen structure for stove, including the molybdenum sheet of a plurality of parallels, be used for connecting the molybdenum filament of molybdenum sheet, the molybdenum sheet on be equipped with the molybdenum filament hole, be equipped with the molybdenum spacer ring between the adjacent molybdenum sheet, the molybdenum filament passes molybdenum filament hole, molybdenum spacer ring in proper order and connects into the independent heat preservation screen body of three groups with the molybdenum sheet, the screen body that is respectively keeping warm, well heat preservation screen body, keep warm and shield the body down, the screen body that go up to keep warm, well heat preservation screen body, keep warm and connect through main molybdenum filament between the screen body down, this the internal connecting hole that is equipped with of screen that go up to keep warm, the connecting hole in be equipped with the screw rod, the lower extreme of screw rod is equipped with the nut, the upper end and the connection pad of screw rod are connected. The utility model discloses have and to prevent that screw rod and nut sintering are in the same place, the molybdenum sheet is dismantled to change and is made things convenient for beneficial effect more.
Description
Technical field
This utility model is related to sapphire growth furnace technical field, more particularly to a kind of sapphire growth furnace is tied with heat protection screen
Structure.
Background technology
Sapphire growth furnace is used for manufacturing sapphire crystal, due to the temperature in sapphire growth furnace it is very high, in order to anti-
Only the high temperature in stove passes to bell, therefore generally needs to arrange heat protection screen inside the upper end of sapphire growth furnace, for every
High temperature absolutely in sapphire growth furnace so that temperature is reduced along the direction of heat protection screen according to gradient, prevents furnace high-temperature from transmitting
To on bell.Heat protection screen common at present generally adopts some molybdenum sheets, multiple screw rods will be passed through after molybdenum sheet parallel arrangement by molybdenum sheet
Connection, the lower end of screw rod is spacing by nut, and screw rod upper end is connected by support with sapphire growth furnace, so that in stove
Temperature is reduced from bottom to up according to gradient；Yet with the temperature highest that the molybdenum sheet of bottom is subject to, a stove is often fired, it is bottom
Molybdenum sheet will gross distortion, need to change once, and the lower end due to screw rod and nut are also at high-temperature region, nut and spiral shell
Bar easily sinters an entirety into and causes molybdenum sheet to be difficult to dismantle, and in sapphire manufacture process screw rod be also susceptible to it is crisp
Break and cause heat protection screen to drop, often fire a furnace rear, the dismounting of molybdenum sheet, replacing are extremely difficult, waste time and energy.
Utility model content
This utility model easily receives high-temperature firing one for the stud nut for overcoming heat protection screen lower end of the prior art
Rising causes molybdenum sheet to change inconvenient deficiency, there is provided one kind can prevent screw rod and nut to be sintered together, molybdenum sheet dismounting and change
Convenient sapphire growth furnace heat protection screen structure.
To achieve these goals, this utility model is adopted the following technical scheme that：
A kind of sapphire growth furnace heat protection screen structure, including some parallel molybdenum sheets, the molybdenum filament for connecting molybdenum sheet, institute
The molybdenum sheet stated is provided with molybdenum filament hole, and molybdenum spacer ring is provided between adjacent molybdenum sheet, and molybdenum filament sequentially passes through molybdenum filament hole, molybdenum spacer ring and connects molybdenum sheet
The heat protection screen body of three groups of independence is connected into, heat protection screen body, middle heat protection screen body, lower heat protection screen body is respectively gone up, it is described
Connected by main molybdenum filament between upper heat protection screen body, middle heat protection screen body, lower heat protection screen body；Described upper heat protection screen sheet is internal
Be provided with connecting hole, be provided with screw rod in described connecting hole, the lower end of the screw rod is provided with nut, the upper end of the screw rod be connected
Disk connects.Screw rod is only connected with upper heat protection screen body, and middle heat protection screen body, lower heat protection screen body are by main molybdenum filament and upper heat protection screen
Body, so that screw rod lower end rationally avoids the high-temperature region in sapphire growth furnace with the junction of nut, can effectively prevent
Only screw rod brittle failure, can also prevent screw rod to be sintered together with nut, fire a stove after, upper heat protection screen body will not deformation need not
Change, it is only necessary to disconnect main molybdenum filament, as needed heat protection screen body, lower heat protection screen body in integral replacing, change very square
Just.
Preferably, the position being located between terminal pad and upper heat protection screen body upper end on described screw rod is arranged with lining
Set.Bushing is for upper heat protection screen body positioning.
Preferably, the position being located between bushing and terminal pad on described screw rod is arranged with some adjusting sets.Adjust
The relative altitude for adjusting upper heat protection screen body, middle heat protection screen body, lower heat protection screen body in stove is covered, so as to by upper insulation
Avoid furnace high-temperature area in the lower end of screen body, it is ensured that upper heat protection screen body and screw rod will not be damaged with nut junction.
Preferably, the upper heat protection screen body, middle heat protection screen body, the center of lower heat protection screen body be equipped with coaxially,
Isometrical seed crystal avoids hole.Seed crystal avoids hole and is easy to seed crystal head to pass through.
Preferably, the seed crystal avoids the inwall in hole is provided with two groups of staged observation breach.The observation of prior art lacks
Mouthful all it is inclined, not ladder, it is all different that this results in the structure per a piece of molybdenum sheet, this changes to molybdenum sheet and brings pole
Big inconvenience, the species of the molybdenum sheet that stepped observation breach is effectively reduced while observation is met so that molybdenum sheet is more
Change convenient.
Therefore, this utility model has can prevent screw rod and nut to be sintered together, molybdenum sheet dismounting and change is convenient has
Beneficial effect.
Description of the drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is to remove terminal pad and the top view after stud in Fig. 1.
Fig. 3 is close-up schematic view at A in Fig. 1.
In figure：Molybdenum sheet 1, molybdenum filament 2, molybdenum filament hole 3, molybdenum spacer ring 4, upper heat protection screen body 5, middle heat protection screen body 6, lower heat protection screen
Body 7, main molybdenum filament 8, connecting hole 9, screw rod 10, nut 11, terminal pad 12, bushing 13, adjusting set 14, seed crystal avoid hole 15, rank
Ladder type observes breach 16.
Specific embodiment
This utility model is further described with reference to the accompanying drawings and detailed description：
A kind of sapphire growth furnace heat protection screen structure as shown in Figure 1, Figure 2 and Figure 3, including some parallel molybdenum sheets 1,
For connecting the molybdenum filament 2 of molybdenum sheet, molybdenum sheet is provided with molybdenum filament hole 3, molybdenum spacer ring 4 is provided between adjacent molybdenum sheet, and molybdenum filament sequentially passes through molybdenum
Molybdenum sheet is connected into the heat protection screen body of three groups of independence for silk hole, molybdenum spacer ring, respectively goes up heat protection screen body 5, middle heat protection screen body
6th, lower heat protection screen body 7, is connected between upper heat protection screen body, middle heat protection screen body, lower heat protection screen body by main molybdenum filament 8；
Upper heat protection screen is originally provided with vivo connecting hole 9, and screw rod 10 is provided with connecting hole, and the lower end of screw rod is provided with nut 11, spiral shell
The upper end of bar is connected with terminal pad 12；The position being located between terminal pad and upper heat protection screen body upper end on screw rod is arranged with bushing
13, the position being located between bushing and terminal pad on screw rod is arranged with some adjusting sets 14.
Upper heat protection screen body, middle heat protection screen body, the center of lower heat protection screen body are equipped with coaxial, isometrical seed crystal and avoid
Hole 15, seed crystal avoids the inwall in hole and is provided with two groups of staged observation breach 16.
Terminal pad is connected with the upper end of sapphire growth furnace, and screw rod lower end is only connected with upper heat protection screen body, according to blue precious
The height and interior temperature distribution of stone growth furnace, is used to adjust upper heat protection screen body blue precious from a number of adjusting set
Position in stone growth furnace, so that screw rod lower end rationally avoids the high temperature in sapphire growth furnace with the junction of nut
Area, can effectively prevent screw rod brittle failure, can also prevent screw rod to be sintered together with nut, after firing a stove, upper heat protection screen sheet
Body will not deformation without the need for changing, it is only necessary to main molybdenum filament is disconnected, heat protection screen body, lower heat protection screen sheet in integral replacing as needed
Body, is very convenient to.
Claims (5)
1. a kind of sapphire growth furnace heat protection screen structure, is characterized in that, including some parallel molybdenum sheets, for connecting molybdenum sheet
Molybdenum filament, described molybdenum sheet is provided with molybdenum filament hole, and molybdenum spacer ring is provided between adjacent molybdenum sheet, and molybdenum filament sequentially passes through molybdenum filament hole, molybdenum spacer ring
Molybdenum sheet is connected into into the heat protection screen body of three groups of independence, heat protection screen body, middle heat protection screen body, lower heat protection screen sheet is respectively gone up
Body, described upper heat protection screen body, is connected between middle heat protection screen body, lower heat protection screen body by main molybdenum filament；Described upper guarantor
This is provided with vivo connecting hole with temperature screen, and screw rod is provided with described connecting hole, and the lower end of the screw rod is provided with nut, the screw rod
Upper end is connected with terminal pad.
2. a kind of sapphire growth furnace heat protection screen structure according to claim 1, is characterized in that, described screw rod is upper
Position between terminal pad and upper heat protection screen body upper end is arranged with bushing.
3. a kind of sapphire growth furnace heat protection screen structure according to claim 2, is characterized in that, described screw rod is upper
Position between bushing and terminal pad is arranged with some adjusting sets.
4. a kind of sapphire growth furnace heat protection screen structure according to claim 1 or 2 or 3, is characterized in that, the upper guarantor
Temperature screen body, middle heat protection screen body, the center of lower heat protection screen body are equipped with coaxial, isometrical seed crystal and avoid hole.
5. a kind of sapphire growth furnace heat protection screen structure according to claim 4, is characterized in that, the seed crystal avoids hole
Inwall be provided with two groups of stageds observation breach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621167536.3U CN206173482U (en) | 2016-11-02 | 2016-11-02 | Sapphire growth is heat preservation screen structure for stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621167536.3U CN206173482U (en) | 2016-11-02 | 2016-11-02 | Sapphire growth is heat preservation screen structure for stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206173482U true CN206173482U (en) | 2017-05-17 |
Family
ID=58680805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621167536.3U Active CN206173482U (en) | 2016-11-02 | 2016-11-02 | Sapphire growth is heat preservation screen structure for stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206173482U (en) |
-
2016
- 2016-11-02 CN CN201621167536.3U patent/CN206173482U/en active Active
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