CN201684906U - Novel process equipment for centrifugal casting furnace tubes - Google Patents
Novel process equipment for centrifugal casting furnace tubes Download PDFInfo
- Publication number
- CN201684906U CN201684906U CN2009202115080U CN200920211508U CN201684906U CN 201684906 U CN201684906 U CN 201684906U CN 2009202115080 U CN2009202115080 U CN 2009202115080U CN 200920211508 U CN200920211508 U CN 200920211508U CN 201684906 U CN201684906 U CN 201684906U
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- centrifugal casting
- process equipment
- furnace tubes
- boiler tube
- novel process
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Abstract
The utility model discloses novel process equipment for centrifugal casting furnace tubes, which belongs to the metallurgy centrifugal casting field. The novel process equipment for centrifugal casting furnace tubes aims to overcome shortcomings that alloying elements are broken, moved and the like in metal liquid under the influence of Lorentz force in the electromagnetic field, eliminate alloying element segregation and improve performance of furnace tubes, comprises an electromagnetic generator, centrifugal casting equipment and the like and is characterized in that the a centrifugal machine is additionally provided with the electromagnetic generator. The novel process equipment leads crystallizing mode, crystal types, alloy distribution and the like of the metal liquid to be reasonable and even in a manufacturing process, thereby increasing performance of the furnace tubes and prolonging service lives thereof.
Description
Technical field
The utility model discloses a kind of process equipment of novel centrifugal casting boiler tube, belong to metallurgical centrifugal casting field.
Background technology
At present the spun casting boiler tube of industrial furnace is in its casting process, and its mould need adopt water cooling, molten metal in the mould that enters rotation at a high speed, cooling, moulding under centrifugal action.In process of production, owing to contain different elements in the molten metal, serious gross segregation phenomenon can take place in their density variation in manufacture process.Simultaneously, also be subjected to the restriction of the cooling capacity of mould, can make the crystallization mode of molten metal and kind of crystalline not reach perfect condition, thereby influence the performance of boiler tube.
Summary of the invention
The purpose of this utility model is to propose a kind ofly to overcome above-mentioned defective, eliminates the alloying element segregation phenomena, improves the process equipment of the novel centrifugal casting boiler tube of boiler tube performance.A kind of process equipment of novel centrifugal casting boiler tube is characterized in that having added electromagnetic generator on centrifuge.The process equipment of this novel centrifugal casting boiler tube is the principle that is subjected to the Lorentz active force opposite with direction of rotation according to molten metal in steady magnetic field, by the part column crystal that is generated in the process of setting being smashed by the electromagnetic agitation of current strength control, form the new nuclei of crystallization, generate the equiax crystal of refinement, to improve the performance of boiler tube.Magnetic field generator is installed in the both sides of mould, at the inner horizontal steady magnetic field that forms perpendicular to the mold shaft line of mould.When molten metal injects, just open magnetic field, and keep a period of time, to the molten metal coagulation forming.This technology mainly is made up of electromagnetic generator and spun casting equipment, under the influence of electromagnetic field Lorentz force, motions such as these alloying elements produce in molten metal and fracture, migration, molten metal crystallization mode, kind of crystalline, alloy distribution etc. in mould are tending towards rationally, thereby have improved the performance of boiler tube.Improved the technological level that boiler tube is made, less stock, artificial etc.
The utility model forms the unicity magnetic pole in the mould both sides, through mould, electromagnetic field intensity can decay, and by increasing excitation voltage, the intensity by gaussmeter detection mould internal magnetic field finally forms steady magnetic field.The utility model proposes the making and the installation method of electromagnetic generator for this reason, realized that the process equipment of novel centrifugal casting boiler tube normally moves.Thereby the boiler tube performance is improved, has also reached the purpose that improves the boiler tube manufacturing technology level, reduces production costs simultaneously.
Description of drawings
Fig. 1 is the process schematic representation of novel centrifugal casting boiler tube.
The specific embodiment
Electromagnetic generator is made
According to actual needs, with the mould be the magnetic field that needs to produce the 5m*0.3m*1m size in the space of 1 meter of the left and right sides, center width.Electromagnetic generator adopts magnet exciting coil mode arranged side by side to make the large scale magnetic pole, forms the unicity magnetic pole in the mould both sides, adds heat insulation cooling layer 10 between magnetic pole 40 and the mould 30, and electromagnetism intensity is by excitation voltage regulation.A kind of process equipment of novel centrifugal casting boiler tube is characterized in that the electromagnetic generator that adds adopts thermal insulation layer to regulate distance between two poles in the both sides of mould.
Because the used die wall of spun casting is thick bigger, and be in the condition of high temperature during operation.Therefore the making of electromagnetic generator has taken into full account the operating mode of centrifuge, adopts the mode that increases excitation voltage to improve electromagnetism intensity, and mould is passed in magnetic field still can reach technological requirement after overdamping.The spacing of magnetic pole must satisfy the requirement of magnetic field intensity, and can guarantee magnetic pole not to be subjected to the mould hyperthermia radiation and damage.Therefore, near a side of mould thermal insulation layer is set at magnetic pole, this layer can be ignored to the decay of electromagnetism intensity.Because mould is longer, therefore adopts and make the unicity magnetic pole to mode arranged side by side along mold shaft.Adopt steel plate to isolate between the adjacent windings, prevent that magnetic field from interfering with each other.
Electromagnetic centrifugal casting is installed
Magnetic pole adopts frock to be installed in the mould both sides, and the magnetic pole plane is relative with the mold shaft line, and each magnet exciting coil is in isometry position.Whole device is placed on the shifting sledge, is convenient to the fitting operation of centrifuge.Simultaneously can be by changing distance between two poles fit adjustment magnetic field intensity.Thermal insulation layer and magnet exciting coil division board are installed together, and are convenient to change.Measure the horizontal magnetic field that guarantees to form steady with gaussmeter, the device of control excitation voltage can set the place in addition.
The electromagnetic centrifugal casting process
To the test of comparing of mould cold junction, adopt different magnetic field intensity and rotating speed, the boiler tube cold junction is carried out Metallographic Analysis, the relation of analyzing crystal kind and formation rule and magnetic field intensity, rotating speed etc., thus obtain technological parameters such as reasonable magnetic field intensity, mould rotating speed, duration.
Mould is after preheating, start magnetic field during the molten steel cast, gradually during crystallisation by cooling, metal liquid 20 is subjected to the influence of the Lorentz force opposite with direction of rotation in steady magnetic field, by electromagnetic agitation the part column crystal that generates in the process of setting is smashed, form the new nuclei of crystallization, generate the equiax crystal of refinement.Simultaneously, each alloying element in molten metal is subjected to Lorentz force to influence the generation reverse rotation, can to a certain degree alleviate the gross segregation phenomenon of alloying element.After the moulding of boiler tube crystallisation by cooling, close magnetic field and on slide rail, remove electromagnetic generator.
Claims (4)
1. the process equipment of a novel centrifugal casting boiler tube is characterized in that having added electromagnetic generator on centrifuge.
2. the process equipment of a kind of novel centrifugal casting boiler tube according to claim 1 is characterized in that the electromagnetic generator that adds adopts magnet exciting coil mode arranged side by side.
3. the process equipment of a kind of novel centrifugal casting boiler tube according to claim 1 is characterized in that isolating with steel plate between the adjacent magnet exciting coil of the electromagnetic generator that adds, and makes the unicity magnetic pole that satisfies centrifuge and mould size.
4. the process equipment of a kind of novel centrifugal casting boiler tube according to claim 1 is characterized in that the electromagnetic generator that adds adopts thermal insulation layer to regulate distance between two poles in the both sides of mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202115080U CN201684906U (en) | 2009-10-29 | 2009-10-29 | Novel process equipment for centrifugal casting furnace tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202115080U CN201684906U (en) | 2009-10-29 | 2009-10-29 | Novel process equipment for centrifugal casting furnace tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201684906U true CN201684906U (en) | 2010-12-29 |
Family
ID=43373197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202115080U Expired - Lifetime CN201684906U (en) | 2009-10-29 | 2009-10-29 | Novel process equipment for centrifugal casting furnace tubes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201684906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103357835A (en) * | 2012-03-26 | 2013-10-23 | 卓然(靖江)设备制造有限公司 | Novel electromagnetic centrifugal furnace tube casting device |
-
2009
- 2009-10-29 CN CN2009202115080U patent/CN201684906U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103357835A (en) * | 2012-03-26 | 2013-10-23 | 卓然(靖江)设备制造有限公司 | Novel electromagnetic centrifugal furnace tube casting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 200335 Shanghai city Changning District road 268 Lane 3, facing the new Co-patentee after: Zuoran (Jingjiang) Equipment Manufacture Co., Ltd. Patentee after: Shanghai zhuoran engineering Limited by Share Ltd Address before: 200001 Shanghai City, Huangpu District Guangdong Road No. 689 room 1603 Co-patentee before: Zuoran (Jingjiang) Equipment Manufacture Co., Ltd. Patentee before: Shanghai Zhuoran Engineering Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101229 |