CN203380346U - Vacuum centrifugal casting device provided with heating and thermal insulation devices - Google Patents
Vacuum centrifugal casting device provided with heating and thermal insulation devices Download PDFInfo
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- CN203380346U CN203380346U CN201320445280.8U CN201320445280U CN203380346U CN 203380346 U CN203380346 U CN 203380346U CN 201320445280 U CN201320445280 U CN 201320445280U CN 203380346 U CN203380346 U CN 203380346U
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- heating
- centrifugal casting
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- conservancy diversion
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Abstract
The utility model discloses a vacuum centrifugal casting device provided with heating and thermal insulation devices. The vacuum centrifugal casting device comprises a device case, wherein an upper cover is arranged at the upper end of the device case, a smelting cavity and a pouring cavity are symmetrically formed in the device case, and a smelting device turnover space is formed among the upper cover, the smelting cavity and the pouring cavity. The heating and thermal insulation devices are added on the outer side of a centrifugal pouring device of the vacuum centrifugal casting device, the whole pouring device can rotate through a rotating base at the bottom, and casting of thin-walled metal castings is facilitated.
Description
Technical field
The utility model belongs to the Special Processes of Metal Castings technical field, relates to a kind of vacuum centrifugal casting device with heating and heat-insulating device.
Background technology
Centrifugal casting specifically refers to waters liquid metal in the casting mold of rotation, under centrifugal action, fills type and is frozen into the casting method of foundry goods, belongs to a kind of in the Special Processes of Metal Castings technology.The information of casting according to statistics association issue shows, to the annual production of 2012 all kinds of foundry goods of China, at 4,250 ten thousand tons, and wherein the foundry goods of centre spinning method production accounts for 15% of foundry goods annual production.In all multi-methods of producing foundry goods, centre spinning method is only second to the casting method of sand mold, has very important status.
The characteristics of centrifugal casting are: 1) without moulding, coremaking, saved associated materials and equipment investment; 2) molten metal is at centrifugal action lower charging type and solidifying, and the metal feeding is effective, the densification of foundry goods outer tissue, and non-metallic inclusion is few, good mechanical property; 3) some part does not need any dead head, and as the casting hollow foundry goods does not need dead head, using rate of metal can improve greatly.
Traditional vacuum induction centrifugal casting stove only utilizes effect filling casting mold and the solidification forming of centrifugal acceleration, shortened the flowing time of molten metal, make its filling shell comparatively abundant, can obtain the foundry goods of even tissue, but, during with the foundry goods below centrifugal mechanism cast wall thickness 1mm, will the defect of foundry goods misrun or cold shut appear.
The utility model content
The purpose of this utility model is to provide a kind of vacuum centrifugal casting device with heating and heat-insulating device, while having solved the foundry goods below existing casting device existence cast wall thickness 1mm, the problem of foundry goods misrun or cold shut occurs.
The technical scheme that the utility model adopts is, vacuum centrifugal casting device with heating and heat-insulating device, include device case, the device case upper end is provided with upper cover, be symmetrically arranged with melting chamber and cast chamber in device case, melting is provided with smelting apparatus in chamber, and cast is provided with the centrifugal casting device in chamber, is provided with smelting apparatus upset space between upper cover and melting chamber, cast chamber.
Characteristics of the present utility model also are:
Smelting apparatus includes crucible, on the outer wall of crucible, is provided with inductance coil, and crucible is fixed in rollover stand, and rollover stand is connected with switching mechanism and the automatically controlled button that overturns successively, and the automatically controlled button that overturns is arranged on the device case outer wall.
On cover and be provided with emissive plastic glazing.
Device case is circumscribed with vacuum system and argon bottle.
The centrifugal casting device, include the apparatus for pouring housing, be provided with the cast inner bag in the apparatus for pouring housing, the lower end of cast inner bag is connected with centrifugal chassis through the bottom of apparatus for pouring housing, the upper end of cast inner bag is communicated with guiding device, the outer cover of cast inner bag is connected to the heating flue, on the outer wall of heating inner liner, is wound with heater strip, and between heating flue and apparatus for pouring housing, vacant part is provided with insulation material.
Heater strip equates with the gap of heating flue two side.
Centrifugal chassis is cylindrical.
Centrifugal heating apparatus for pouring outer setting has wireless thermocouple temperature transmitter, the Wireless thermocouple temperature transmitter includes thermocouple probe and thermocouple display screen, thermocouple probe is arranged at close heating flue one side-walls in insulation material, and the thermocouple display screen is arranged at the outside of device case.
Guiding device includes guiding gutter and is arranged at the sprue gate of guiding gutter lower end, and sprue gate is communicated with the cast inner bag.
Guide trough structure is: include the first water conservancy diversion inclined-plane and the 3rd water conservancy diversion inclined-plane that are arranged at both sides in guiding device, the lower end on the first water conservancy diversion inclined-plane is connected with the second water conservancy diversion inclined-plane, the lower end on the second water conservancy diversion inclined-plane is connected with an end at sprue gate, the lower end on the 3rd water conservancy diversion inclined-plane is connected with the other end at sprue gate, the first water conservancy diversion inclined-plane and guiding device upper surface are the angle of 55 °, be the angle of 135 ° between the first water conservancy diversion inclined-plane and the second water conservancy diversion inclined-plane, the 3rd water conservancy diversion inclined-plane and guiding device lower surface are the angle of 70 °.
The beneficial effects of the utility model are:
(1) of the present utility model with the vacuum centrifugal casting device of heating and heat-insulating device in for the cast inner bag increased heater, this heater can provide a casting preheat temperature, reduce the temperature difference between molten metal and cast inner bag, improved mold-filling capacity;
(2) heater of the vacuum centrifugal casting device with heating and heat-insulating device of the present utility model can be the molten metal be poured in the cast inner bag lasting heating is provided, also can be by the temperature of radio-type thermocouple temperature transmitter monitoring cast inner bag, guarantee that molten metal keeps higher temperature in casting process, guarantee that molten metal has good mold-filling capacity;
(3) of the present utility model with the vacuum centrifugal casting device of heating and heat-insulating device in also for the cast inner bag disposes attemperator, attemperator can effectively prevent that a large amount of of molten metal heat in casting process scatter and disappear;
(4) of the present utility modelly with the apparatus for pouring in the vacuum centrifugal casting device of heating and heat-insulating device, can be rotated, in centrifugal casting, guarantee that foundry goods and molten metal, in higher temperature, can cast out complex-shaped zero defect thin-walled parts between 0.3mm～0.5mm.
The accompanying drawing explanation
Fig. 1 is the plan structure figure of the vacuum centrifugal casting device with heating and heat-insulating device of the present utility model;
Fig. 2 is the sectional structure chart with centrifugal casting device in the vacuum centrifugal casting device of heating and heat-insulating device of the present utility model;
Fig. 3 is the structure chart of the guiding device of the vacuum centrifugal casting device with heating and heat-insulating device of the present utility model.
In figure, 1. the apparatus for pouring housing, 2. heat flue, 3. insulation material, 4. cast inner bag, 5. heater strip, 6. thermocouple probe, 7. guiding gutter, 8. smelting apparatus, 9. device case, 10. centrifugal casting device, 11. centrifugal chassis, 12. guiding devices, 13. the melting chamber, 14. cast chambeies, 15 first water conservancy diversion inclined-planes, 16. the second water conservancy diversion inclined-plane, 17. the 3rd water conservancy diversion inclined-planes, 18. sprue gates.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Vacuum centrifugal casting device with heating and heat-insulating device of the present utility model, its structure as shown in Figure 1, include device case 9, device case 9 upper ends are provided with upper cover, be symmetrically arranged with melting chamber 13 and cast chamber 14 in device case 9, be provided with smelting apparatus 8 in melting chamber 13, cast is provided with centrifugal casting device 10 in chamber 14, and 14 of upper cover and melting chamber 13, cast chamber are provided with smelting apparatus 8 upset spaces.
Smelting apparatus 8 includes crucible, on the outer wall of crucible, is provided with inductance coil, and crucible is fixed in rollover stand, and rollover stand is connected with switching mechanism and the automatically controlled button that overturns successively, and the automatically controlled button that overturns is arranged on device case 9 outer walls.
Wherein, the interior turning device for the crucible upset of smelting apparatus 8, mainly utilized the transmission of power transmission shaft to produce the power of upset for crucible, power transmission shaft one end is for extending to the clutch end in device case 9, the other end is for extending to the outer power intake of device case 9, this turning device also is connected with the power intake of power transmission shaft by outside gear mechanism, drive power transmission shaft to rotate around it the hydraulic cylinder of axis reciprocating rotation, the power intake of power transmission shaft directly and rollover stand be connected, or be connected with rollover stand by interior transmission mechanism, to drive the linkage section of rollover stand upset, turning device flip angle in the present invention is less than 120 °.
On cover and be provided with emissive plastic glazing, infrared thermometer is aimed at crucible by emissive plastic glazing can monitor the temperature in crucible.
Device case 9 is circumscribed with vacuum system; Vacuum system includes vavuum pump, vacuum valve body, vacuum detecting instrument composition, and vacuum system is existing vacuum system.
The outer setting of centrifugal casting device 10 has wireless thermocouple temperature transmitter, and the Wireless thermocouple temperature transmitter includes thermocouple probe 6 and thermocouple display screen; Be positioned at heating flue 2 one side-walls in the insulation material 3 of thermocouple probe 6 insertion apparatus for pouring housings 1, the thermocouple display screen is arranged at the outside of device case 9.
The upper surface of apparatus for pouring housing 1 is provided with concave station, guiding device 12 is arranged in concave station, guiding device 12, and its structure is as shown in Figure 2, include guiding gutter 7 and the sprue gate 18 that is arranged at guiding gutter 7 lower ends, guiding gutter 7 is communicated with cast inner bag 4 by sprue gate 18.Guiding gutter 7 structures are: include the first water conservancy diversion inclined-plane 15 and the 3rd water conservancy diversion inclined-plane 17 that are arranged at guiding device 12 interior both sides, the first 15 lower end, water conservancy diversion inclined-plane is connected with the second water conservancy diversion inclined-plane 16, the second 16 lower end, water conservancy diversion inclined-plane is connected with an end at sprue gate 14, the 3rd 17 lower end, water conservancy diversion inclined-plane is connected with the other end at sprue gate 14, the first water conservancy diversion inclined-plane 15 is the angle of 55 ° with the guiding device upper surface, be the angle of 135 ° between the first water conservancy diversion inclined-plane 15 and the second water conservancy diversion inclined-plane 16, the 3rd water conservancy diversion inclined-plane 17 is the angle of 70 ° with the guiding device lower surface, the length on the first water conservancy diversion inclined-plane 15 is less than the 3rd water conservancy diversion inclined-plane 17 length, the 3rd water conservancy diversion inclined-plane 17 length are less than the length on the second water conservancy diversion inclined-plane 16.
Step 1.1, get the titanium alloy metal solid, wherein the titanium alloy metal solid is Ti-6Al-4V;
Step 1.2, by the crucible in the titanium alloy metal solid embedding device housing 9 in step 1.1, the volume of titanium alloy metal solid is no more than 80% of crucible volume;
Step 1.3, startup cooling water circulation, guarantee that the vavuum pump group in vacuum system, induction coil and the power supply of crucible outer wall maintain normal operating temperature;
Afterwards, vacuum system is communicated with device case 9 is interior, to being vacuumized in device case 9, treats that the atmospheric pressure value in device housing 9 is 0.01Pa, close vacuum system;
Step 1.4, after step 1.3 vacuumizes processing, argon bottle is communicated with device case 9 is interior, to the interior input argon gas of device case 9, utilizing argon gas to carry out one or many washes away, treat that the force value shown on the external mechanical pressure gauge of device housing 9 is 0.02MPa～0.08MPa, stop to the interior supply argon gas of device case 9.
Step 2, by the titanium alloy metal solid melting in step 1 and casting mold the pre-heat treatment:
Switch on power, smelting apparatus 8 in opening device housing 9, be 0.01Pa and have under the condition of argon shield in vacuum, utilize the vacuum induction principle, with inductance coil, the titanium alloy metal solid in crucible is carried out to melting, it is 1700 ℃～1800 ℃ that smelting temperature is controlled, and obtains the titanium alloy molten metal;
In the process of smelting metal liquid, the variations in temperature by infrared thermometer in can the Real-Time Monitoring crucible, the smelting temperature of crucible is relevant with the fusing point for the treatment of smelting metal, according to treating that the fusing point of smelting metal determines smelting temperature.
When the temperature in crucible is elevated to 1000 ℃, start the heater strip 5 in centrifugal casting device 10, heater strip 5 starts heating flue 2 is heated, it is 800 ℃～900 ℃ that heating flue 2 adds hot pouring inner bag 4 to thermocouple display screen displays temperature simultaneously, completes the casting mold the pre-heat treatment of cast inner bag.
Step 3, will be through the titanium alloy pouring metal melt of step 2 casting mold the pre-heat treatment in cast inner bag 4:
Step 3.1, the automatically controlled button of startup upset, crucible produces upset, the titanium alloy molten metal that is 1700 ℃～1800 ℃ by temperature is poured in guiding gutter 7, and the titanium alloy molten metal is in guiding gutter 7, sprue gate 18 enter cast inner bag 4, and cast titanium alloy molten metal will be controlled in 8s and complete;
Step 3.2, through step 3.1 complete the cast 5min～30min after, close centrifugal heating apparatus for pouring power supply, cast inner bag 4 stops the rotation, heater strip 5 stops heating, treat that vaccum sensitive stove is cooled to normal temperature under the effect of circulating water, cooling purpose is to prevent that thin-wall titanium alloy foundry goods and crucible are oxidized after blow-on, treats that crucible is thoroughly dimmed, till cannot see from form, this time is 1h～3h.
Step 4, open upper cover, take off guiding device 12, guiding device 12 is placed in to baking oven and dries, prevent a large amount of air-breathingly and reduce and vacuumize efficiency next time, take out thin-wall titanium alloy foundry goods in cast inner bag 4 and get final product.
Claims (10)
1. with the vacuum centrifugal casting device of heating and heat-insulating device, it is characterized in that, include device case (9), described device case (9) upper end is provided with upper cover, be symmetrically arranged with melting chamber (13) and cast chamber (14) in described device case (9), be provided with smelting apparatus (8) in described melting chamber (13), be provided with centrifugal casting device (10) in described cast chamber (14), be provided with described smelting apparatus (8) upset space between described upper cover and described melting chamber (13), cast chamber they (14).
2. the vacuum centrifugal casting device with heating and heat-insulating device according to claim 1, it is characterized in that, described smelting apparatus (8) includes crucible, be provided with inductance coil on the outer wall of described crucible, described crucible is fixed in rollover stand, described rollover stand is connected with switching mechanism and the automatically controlled button that overturns successively, and the automatically controlled button of described upset is arranged on device case (9) outer wall.
3. the vacuum centrifugal casting device with heating and heat-insulating device according to claim 1, is characterized in that, covers on described and be provided with emissive plastic glazing.
4. the vacuum centrifugal casting device with heating and heat-insulating device according to claim 1, is characterized in that, described device case (9) is circumscribed with vacuum system and argon bottle.
5. the vacuum centrifugal casting device with heating and heat-insulating device according to claim 1, it is characterized in that, described centrifugal casting device (10), include apparatus for pouring housing (1), be provided with cast inner bag (4) in described apparatus for pouring housing (1), the lower end of described cast inner bag (4) is connected with centrifugal chassis (11) through the bottom of described apparatus for pouring housing (1), the upper end of described cast inner bag (4) is communicated with guiding device (12), the outer cover of described cast inner bag (4) is connected to heating flue (2), be wound with heater strip (5) on the outer wall of described heating inner liner (2), between described heating flue (2) and apparatus for pouring housing (1), vacant part is provided with insulation material (3).
6. the vacuum centrifugal casting device with heating and heat-insulating device according to claim 5, is characterized in that, described heater strip (5) equates with the gap of described heating flue (2) two side.
7. the vacuum centrifugal casting device with heating and heat-insulating device according to claim 5, is characterized in that, described centrifugal chassis (11) is cylindrical.
8. the vacuum centrifugal casting device with heating and heat-insulating device according to claim 5, it is characterized in that, described centrifugal casting device (10) outer setting has wireless thermocouple temperature transmitter, described Wireless thermocouple temperature transmitter includes thermocouple probe (6) and thermocouple display screen, described thermocouple probe (6) is arranged at close heating flue (2) one side-walls in insulation material (3), and described thermocouple display screen is arranged at the outside of device case (9).
9. the vacuum centrifugal casting device with heating and heat-insulating device according to claim 5, it is characterized in that, described guiding device (12) includes guiding gutter (7) and is arranged at the sprue gate (18) of guiding gutter (7) lower end, and described sprue gate (18) are communicated with described cast inner bag (4).
10. the vacuum centrifugal casting device with heating and heat-insulating device according to claim 9, it is characterized in that, described guiding gutter (7) structure is: include the first water conservancy diversion inclined-plane (15) and the 3rd water conservancy diversion inclined-plane (17) that are arranged at the interior both sides of guiding device (12), the lower end on described the first water conservancy diversion inclined-plane (15) is connected with the second water conservancy diversion inclined-plane (16), the lower end on described the second water conservancy diversion inclined-plane (16) is connected with an end of described sprue gate (18), the lower end on described the 3rd water conservancy diversion inclined-plane (17) is connected with the other end of described sprue gate (18), described the first water conservancy diversion inclined-plane (15) is the angle of 55 ° with described guiding device (12) upper surface, be the angle of 135 ° between described the first water conservancy diversion inclined-plane (15) and described the second water conservancy diversion inclined-plane (16), described the 3rd water conservancy diversion inclined-plane (17) is the angle of 70 ° with guiding device (12) lower surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320445280.8U CN203380346U (en) | 2013-07-24 | 2013-07-24 | Vacuum centrifugal casting device provided with heating and thermal insulation devices |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320445280.8U CN203380346U (en) | 2013-07-24 | 2013-07-24 | Vacuum centrifugal casting device provided with heating and thermal insulation devices |
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| CN203380346U true CN203380346U (en) | 2014-01-08 |
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| CN201320445280.8U Expired - Fee Related CN203380346U (en) | 2013-07-24 | 2013-07-24 | Vacuum centrifugal casting device provided with heating and thermal insulation devices |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104942256A (en) * | 2015-06-05 | 2015-09-30 | 上海蓝铸特种合金材料有限公司 | Vacuum centrifugal casting device |
| CN105318717A (en) * | 2015-11-05 | 2016-02-10 | 嘉兴皓特特种陶瓷有限公司 | Integrated graphite crucible |
| CN106077500A (en) * | 2016-06-08 | 2016-11-09 | 中国船舶重工集团公司第七二五研究所 | A kind of heating furnace for the preheating of high temperature alloy precision casting shell and insulation |
| CN106862516A (en) * | 2016-03-21 | 2017-06-20 | 新荣株式会社 | A kind of centrifugal casting equipment |
| CN107803493A (en) * | 2017-12-12 | 2018-03-16 | 安徽应流集团霍山铸造有限公司 | A kind of Turbine Casting pours into a mould special purpose device |
| CN108889895A (en) * | 2018-06-21 | 2018-11-27 | 中车石家庄车辆有限公司 | Railway freight-car rivet heating device |
| CN110614355A (en) * | 2019-09-10 | 2019-12-27 | 浙江大学 | High-temperature heating system for directional solidification and fusion casting of materials in supergravity environment |
| CN114653918A (en) * | 2022-04-13 | 2022-06-24 | 扬州市雪龙铜制品有限公司 | Centrifugal casting method and casting equipment for large copper bush |
| CN114749622A (en) * | 2022-04-27 | 2022-07-15 | 中南大学 | Double-shaft centrifugal stirring casting device and mixed metal smelting casting method |
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2013
- 2013-07-24 CN CN201320445280.8U patent/CN203380346U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104942256A (en) * | 2015-06-05 | 2015-09-30 | 上海蓝铸特种合金材料有限公司 | Vacuum centrifugal casting device |
| CN105318717A (en) * | 2015-11-05 | 2016-02-10 | 嘉兴皓特特种陶瓷有限公司 | Integrated graphite crucible |
| CN106862516A (en) * | 2016-03-21 | 2017-06-20 | 新荣株式会社 | A kind of centrifugal casting equipment |
| CN106077500A (en) * | 2016-06-08 | 2016-11-09 | 中国船舶重工集团公司第七二五研究所 | A kind of heating furnace for the preheating of high temperature alloy precision casting shell and insulation |
| CN107803493A (en) * | 2017-12-12 | 2018-03-16 | 安徽应流集团霍山铸造有限公司 | A kind of Turbine Casting pours into a mould special purpose device |
| CN108889895A (en) * | 2018-06-21 | 2018-11-27 | 中车石家庄车辆有限公司 | Railway freight-car rivet heating device |
| CN110614355A (en) * | 2019-09-10 | 2019-12-27 | 浙江大学 | High-temperature heating system for directional solidification and fusion casting of materials in supergravity environment |
| CN110614355B (en) * | 2019-09-10 | 2023-11-28 | 浙江大学 | High-temperature heating system for directional solidification and casting of materials in hypergravity environment |
| CN114653918A (en) * | 2022-04-13 | 2022-06-24 | 扬州市雪龙铜制品有限公司 | Centrifugal casting method and casting equipment for large copper bush |
| CN114749622A (en) * | 2022-04-27 | 2022-07-15 | 中南大学 | Double-shaft centrifugal stirring casting device and mixed metal smelting casting method |
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| 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: 20140108 Termination date: 20140724 |
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| EXPY | Termination of patent right or utility model |