CN203820876U - Antioxidant function gradient aluminium oxide-silicon carbide-graphite crucible - Google Patents
Antioxidant function gradient aluminium oxide-silicon carbide-graphite crucible Download PDFInfo
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- CN203820876U CN203820876U CN201420063028.5U CN201420063028U CN203820876U CN 203820876 U CN203820876 U CN 203820876U CN 201420063028 U CN201420063028 U CN 201420063028U CN 203820876 U CN203820876 U CN 203820876U
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- crucible
- transition layer
- silicon carbide
- antioxidant function
- upper opening
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- Devices For Use In Laboratory Experiments (AREA)
Abstract
The utility model discloses an antioxidant function gradient aluminium oxide-silicon carbide-graphite crucible. The antioxidant function gradient aluminium oxide-silicon carbide-graphite crucible comprises a crucible body, wherein the crucible body comprises an upper opening part, a crucible base and a transition layer, the upper opening part is arranged at the upper part of the body, the crucible base is arranged at the lower part of the body, the transition layer is arranged between the upper opening part and the crucible base, the transition layer is of a hierarchical structure, and the transition layer is divided into two layers at least. The antioxidant function gradient aluminium oxide-silicon carbide-graphite crucible has the advantages that the problem that thermal expansion coefficient is mismatched is solved, so that the crucible can not be cracked owning to mismatch of the thermal expansion coefficient in a heating process; the upper opening part can solve the problem of the existing crucible that an upper opening can be oxidized easily; by adopting the structural design of the utility model, the upper opening part of the crucible has strong antioxidant function.
Description
Technical field
The utility model relates to a kind of crucible, is a kind of anti-oxidant function graded oxidation aluminum/silicon carbide-plumbago crucible specifically.
Background technology
Anti-oxidant function graded oxidation aluminum/silicon carbide-plumbago crucible is mainly used in the fusing of non-ferrous metal.Use crucible to carry out non-ferrous metal melting in process furnace during user, because its heat source is in the bottom of crucible, therefore in general use procedure the upper and lower temperature difference of crucible at 100 – 150
oc.While being applied in gas heating furnace melting aluminum alloy as crucible, crucible middle and lower part temperature is 900
omore than C, and the oral area temperature of crucible is about 800
oc; Cause crucible in heat-processed because thermal expansivity does not mate and ftractures, because the upper oral part partial volume of existing crucible is oxidizable, cause pot life to shorten in addition.
Summary of the invention
The utility model provides a kind of anti-oxidant function graded oxidation aluminum/silicon carbide-plumbago crucible.
The purpose of this utility model be solve more existing crucibles in heat-processed because thermal expansivity does not mate the problem ftractureing.
The utility model solves the technical scheme that its technical problem adopts: a kind of anti-oxidant function graded oxidation aluminum/silicon carbide-plumbago crucible, comprise crucible body, described body comprises part suitable for reading, crucible bottom and transition layer part, described upper oral part is divided into body top, described crucible bottom is located at body bottom, described transition layer part is located between part suitable for reading and crucible bottom, and described transition layer part is hierarchical structure, and described transition layer part is at least two layers.
Described transition layer part is four layers, is down followed successively by First Transition layer, the second transition layer, the 3rd transition layer and the 4th transition layer from the part suitable for reading of body.
The material of described part suitable for reading is to make after silicon carbide and aluminum oxide mix.
The material of described crucible bottom is to make after silicon carbide and graphite mix.
The material of described transition layer part is to make after silicon carbide, aluminum oxide and graphite mix.
Transition layer part of the present utility model has solved the problem of coefficient of thermal expansion mismatch, avoid crucible in heat-processed because thermal expansivity does not mate and ftractures, upper oral part of the present utility model divides the problem that has solved the easy oxidation suitable for reading of existing crucible; Strong by structure design crucible of the present utility model part anti-oxidant function suitable for reading.
Brief description of the drawings
Fig. 1 is cross-sectional view of the present utility model.
Fig. 2 is component flow process chart of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in the figure, the utility model comprises crucible body 7, described body 7 comprises part 1 suitable for reading, crucible bottom 6 and transition layer part, described part suitable for reading 1 is located at body 7 tops, described crucible bottom 6 is located at body 7 bottoms, described transition layer part is located between part 1 suitable for reading and crucible bottom 6, and described transition layer part is hierarchical structure, and described transition layer part is at least two layers.
Described transition layer part is four layers, is down followed successively by First Transition layer 2, the second transition layer 3, the 3rd transition layer 4 and the 4th transition layer 5 from the part suitable for reading 1 of body 7.
The material of described part suitable for reading 1 is to make after silicon carbide and aluminum oxide mix.
The material of described crucible bottom 6 is to make after silicon carbide and graphite mix.
The material of described transition layer part is to make after silicon carbide, aluminum oxide and graphite mix.
Following is concrete data embodiment of the present utility model:
The upper oral part of anti-oxidant function graded oxidation aluminum/silicon carbide-plumbago crucible is divided into the A component that silicon carbide and aluminum oxide are mixed with according to a certain percentage, and crucible bottom is that body middle and lower part is silicon carbide and graphite formulated B component according to a certain percentage.Part suitable for reading and crucible bottom between the two are the transition layer parts that A, B component are proportionally prepared.
A component is formulated by silicon carbide and aluminum oxide, has excellent antioxidant property under relatively low use temperature, and making in the long-term use procedure of crucible not can be because of oxidized inefficacy gradually.But the thermal conductivity of A component is lower, therefore can only be applied in the oral area of crucible.
A component: carborundum content 0 – 80%, alumina content 20%-100%.
B component is formulated by silicon carbide and graphite, has excellent heat conductivility, and antioxidant property is better under higher use temperature.Therefore the middle and lower part material of crucible adopts B component to make, and makes the thermal conductivity of crucible entirety and antioxidant property reach best.
B component: carborundum content 10%-80%, content of graphite 20%-90%.
Described upper oral part is divided into 100% A component;
Described crucible bottom is 100% B component;
Described First Transition layer is 80% A component+20% B component;
The second described transition layer is 60% A component+40% B component;
The 3rd described transition layer is 40% A component+60% B component;
The 4th described transition layer is 20% A component+80% B component;
The functionally gradient transition layer that adopts A, B component to be made in proportion between the oral area of crucible and middle and lower part, the material of upper and lower two kinds of different ingredients is combined by functionally gradient transition layer, and this functionally gradient transition layer also solved the problem of coefficient of thermal expansion mismatch, avoid crucible in heat-processed because thermal expansivity does not mate and ftractures.Because the utility model part suitable for reading does not contain graphite, only have silicon carbide and aluminum oxide composition, such design makes the anti-oxidant function of crucible part suitable for reading strong.
Claims (2)
1. anti-oxidant function graded oxidation aluminum/silicon carbide-plumbago crucible, comprise crucible body, it is characterized in that described body comprises part suitable for reading, crucible bottom and transition layer part, described upper oral part is divided into body top, described crucible bottom is located at body bottom, described transition layer part is located between part suitable for reading and crucible bottom, and described transition layer part is hierarchical structure, and described transition layer part is at least two layers.
2. a kind of anti-oxidant function graded oxidation aluminum/silicon carbide-plumbago crucible according to claim 1, it is characterized in that described transition layer part is four layers, be down followed successively by First Transition layer, the second transition layer, the 3rd transition layer and the 4th transition layer from the part suitable for reading of body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420063028.5U CN203820876U (en) | 2014-02-12 | 2014-02-12 | Antioxidant function gradient aluminium oxide-silicon carbide-graphite crucible |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420063028.5U CN203820876U (en) | 2014-02-12 | 2014-02-12 | Antioxidant function gradient aluminium oxide-silicon carbide-graphite crucible |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203820876U true CN203820876U (en) | 2014-09-10 |
Family
ID=51476397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420063028.5U Expired - Fee Related CN203820876U (en) | 2014-02-12 | 2014-02-12 | Antioxidant function gradient aluminium oxide-silicon carbide-graphite crucible |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203820876U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112225570A (en) * | 2019-07-14 | 2021-01-15 | 江苏摩铸特种陶瓷有限公司 | Three-layer silicon carbide graphite crucible and preparation method thereof |
-
2014
- 2014-02-12 CN CN201420063028.5U patent/CN203820876U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112225570A (en) * | 2019-07-14 | 2021-01-15 | 江苏摩铸特种陶瓷有限公司 | Three-layer silicon carbide graphite crucible and preparation method thereof |
| CN112225570B (en) * | 2019-07-14 | 2023-02-17 | 江苏摩铸特种陶瓷有限公司 | Three-layer silicon carbide graphite crucible and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20150212 |
|
| EXPY | Termination of patent right or utility model |