CN103447506B - Low-melting alloy ultrasonic agitation compound smelting equipment - Google Patents
Low-melting alloy ultrasonic agitation compound smelting equipment Download PDFInfo
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Abstract
The invention discloses a kind of low-melting alloy ultrasonic agitation compound smelting equipment, the low-melting alloy being applicable to less than 300 DEG C is the melting of the alloy of various tin bismuth system and preparation particularly; This equipment comprises crucible, heat insulation and heating equipment, temperature regulating device, ultrasonic agitation device, ultrasonic wave generation and control device and mechanical stirring device, and metal bath is placed in crucible; Its simple structure is practical, mechanical stirring device and ultrasonic wave agitating device orthogonal, non-interference, ultrasonic wave is directed into metal bath from crucible side, efficiency is high, ultrasonic energy losses is few, and higher at metal bath solid rate, still can apply ultrasonic wave and stir until metal freezing time mechanical agitation is inoperative; Ultrasonic and mechanical composite stirring, can crystal grain thinning, obtains non-bearing crack, accelerates the composition of molten metal bath and the homogenising of temperature, and the plasticity of prepared alloy comparatively conventional method significantly improves.
Description
Technical field
The invention belongs to the preparing technical field of metal, be specifically related to a kind of low-melting alloy ultrasonic agitation compound smelting equipment, the low-melting alloy being applicable to less than 300 DEG C is the melting of the alloy of various tin bismuth system and preparation particularly.
Background technology
Metallic article such as the quality of ingot casting, foundry goods, continuous cast products is directly decided by the quality of melting link and metal bath.Gas in melt, the level of control of field trash are the important reactions of the degree of purity of metal bath.Along with smelting and the development of equipment and technology, the degree of purity of metal bath is largely increased, and level of inclusions and gas content are reduced, but this problem still exists.Improve melt quality, mechanical mixing method is simple, but also exist and stir dead band, affect the uniformity of melt, ultrasonic wave process metal bath, can fining metal solidify crystal grain, can promote that the gas of metal bath forms bubble and floating of growing up, the reunion of field trash can be promoted, and then float, also have research to think field trash can be carried out fragmentation and realize Dispersed precipitate, these all contribute to the quality improving metal bath.
Ultrasonic tool head mainly immerses in pending metal bath by existing research method carries out ultrasonic process, but during the method process refractory metal (as steel melt), require high to the high temperature resistant of ultrasonic tool head and decay resistance, traditional metal materials is difficult to meet the demands; Even if adopt cermet to avoid corrosion, still there is processing, assembling difficulty and the easy problem that brittle failure occurs.Have and adopt metal tantalum as tool heads material, performance is good but expensive (Chinese patent CN102554195A).Also has the method be adsorbed onto from the side by ultrasonic tool head by electromagnet on metallic crucible, indirectly ultrasonic delivery metal bath, but adopt the method ultrasonic attenuation serious, be difficult to effectively process metal bath, and iron crucible not corrosion-resistant (Chinese patent CN1478624A) itself.The mode that ultrasonic tool head immerses pending metal bath also hampers churned mechanically adding.
Summary of the invention
Therefore, in order to overcome the above problems, the invention provides a kind of low-melting alloy ultrasonic agitation compound smelting equipment.The low-melting alloy being applicable to less than 300 DEG C is the melting of the alloy of various tin bismuth system and preparation particularly.Include crucible, heat insulation and heating equipment, temperature regulating device, ultrasonic agitation device, ultrasonic wave generation and control device and mechanical stirring device.Mechanical stirring device and ultrasonic wave agitating device orthogonal, non-interference, ultrasonic wave is directed into metal bath from the side, and ultrasonic wave agitating device is made up of ultrasonic transducer, ultrasonic transformer and working head.Working head and crucible have gap, and gap is sealed by heat resisting fluororubber, and working head directly contacts with metal bath.Be heat insulation and heating equipment outside crucible, temperature probe inserts in metal bath, and attemperating unit can control metal bath temperature.
A kind of low-melting alloy ultrasonic agitation compound smelting equipment provided by the invention, comprise crucible 8, heat insulation and heating equipment 9, temperature regulating device 5, ultrasonic agitation device 10, ultrasonic wave generation and control device 4 and mechanical stirring device 6, metal bath 11 is placed in crucible 8; The integrative-structure that described ultrasonic wave agitating device 10 is made up of ultrasonic transducer 3, ultrasonic transformer 2 and working head 1; Described crucible 8 outer layer covers heat insulation and heating equipment 9, temperature regulating device 5 connects heat insulation and heating equipment 9 and temperature probe 7 respectively, and temperature probe 7 inserts in metal bath 11, and ultrasonic wave occurs to be connected with ultrasonic agitation device 10 with control device 4; The stirring vane of mechanical stirring device 6 inserts in metal bath 11, mechanical stirring device 6 is placed with ultrasonic wave agitating device 10 is mutually vertical, the top of described working head 1 penetrates crucible 8 and directly contacts with metal bath 11, and ultrasonic wave imports in metal bath 11 from the side.
Described ultrasonic wave agitating device 10 to be threaded connection by said sequence by ultrasonic transducer 3, ultrasonic transformer 2 and working head 1 and to form integrative-structure.
Have gap between the top of described working head 1 and crucible 8, gap uses the sealing of heat resisting fluororubber sealing ring.
The amplitude of described working head is 30 ~ 60 μm.
Described ultrasonic wave occurs and its ultrasonic frequency of control device is 15 ~ 25KHz, and power is 500 ~ 1500W.
The stirring vane rotating speed of described mechanical stirring device is 100 ~ 500 revs/min.
Beneficial effect of the present invention:
Mechanical stirring device and ultrasonic wave agitating device orthogonal, two is non-interference, can apply simultaneously.Ultrasonic agitation composite stirring, can eliminate the gas in churned mechanically dead band, removing melt.Low-temperature alloy melting greatly reduces the high temperature resistant of ultrasonic wave working head and decay resistance requirement, and the working head done with general tool steel just can long-term stable operation.Ultrasonic wave is directed into metal bath from the side, working head and crucible have gap, gap is sealed by heat resisting fluororubber, heat resisting fluororubber sealing can completely cut off transfer of ultrasonic energy and lose to crucible, working head directly contacts with metal bath, ultrasonic energy efficiently can import metal bath, and does not limit by crucible material.And higher at metal bath solid rate, still can apply ultrasonic wave time mechanical agitation is inoperative and stir until metal freezing.Ultrasonic and mechanical composite stirring, can crystal grain thinning, obtains non-bearing crack, accelerates the composition of molten metal bath and the homogenising of temperature, the excellent plasticity of prepared alloy.
Accompanying drawing explanation
Fig. 1 is low-melting alloy ultrasonic agitation compound smelting device structure schematic diagram of the present invention.
Wherein: 1, working head, 2, ultrasonic transformer, 3, ultrasonic transducer, 4, ultrasonic wave occurs and control device, 5, temperature regulating device, 6, mechanical stirring device, 7, temperature probe, 8, crucible, 9, heat insulation and heating equipment, 10, ultrasonic agitation device, 11, metal bath.
Detailed description of the invention
Below in conjunction with accompanying drawing 1, the present invention will be further described:
As shown in Figure 1, low-melting alloy ultrasonic agitation compound smelting equipment includes crucible 8, heat insulation and heating equipment 9, temperature regulating device 5, ultrasonic agitation device 10(working head 1, ultrasonic transformer 2, ultrasonic transducer 3 are one, between to be connected by screw thread form integrative-structure), ultrasonic wave occurs and control device 4 and mechanical stirring device 6 form.Temperature regulating device 5 is connected respectively to heat insulation and heating equipment 9 and temperature probe 7, is heat insulation and heating equipment 9 outside crucible 8, and temperature probe 7 inserts in metal bath 11, and attemperating unit 5 can control the temperature of metal bath 11.Ultrasonic wave occurs to be connected with ultrasonic agitation device 10 with control device 4.Mechanical stirring device 6 and the orthogonal installation of ultrasonic wave agitating device 10, ultrasonic wave is directed into metal bath 11 from the side, has gap between working head 1 and crucible 8, and gap is sealed by heat resisting fluororubber sealing ring.
Claims (4)
1. a low-melting alloy ultrasonic agitation compound smelting equipment, it is characterized in that: comprise crucible (8), heat insulation and heating equipment (9), temperature regulating device (5), ultrasonic agitation device (10), ultrasonic wave generation and control device (4) and mechanical stirring device (6), metal bath (11) is placed in crucible (8); The integrative-structure that described ultrasonic wave agitating device (10) is made up of ultrasonic transducer (3), ultrasonic transformer (2) and working head (1); Described crucible (8) outer layer covers heat insulation and heating equipment (9), temperature regulating device (5) connects heat insulation and heating equipment (9) and temperature probe (7) respectively, temperature probe (7) inserts in metal bath (11), and ultrasonic wave occurs to be connected with ultrasonic agitation device (10) with control device (4); The stirring vane of mechanical stirring device (6) inserts in metal bath (11), mechanical stirring device (6) is placed with ultrasonic wave agitating device (10) is mutually vertical, the top of described working head (1) penetrates crucible (8) and directly contacts with metal bath (11), and ultrasonic wave imports in metal bath (11) from the side;
Described ultrasonic wave agitating device (10) to be threaded connection by said sequence by ultrasonic transducer (3), ultrasonic transformer (2) and working head (1) and to form integrative-structure;
Have gap between the top of described working head (1) and crucible (8), gap uses the sealing of heat resisting fluororubber sealing ring.
2. low-melting alloy ultrasonic agitation compound smelting equipment according to claim 1, is characterized in that: the amplitude of described working head is 30 ~ 60 μm.
3. low-melting alloy ultrasonic agitation compound smelting equipment according to claim 1, is characterized in that:
Described ultrasonic wave occurs and its ultrasonic frequency of control device is 15 ~ 25kHz, and power is 500 ~ 1500W.
4. low-melting alloy ultrasonic agitation compound smelting equipment according to claim 1, is characterized in that:
The stirring vane rotating speed of described mechanical stirring device is 100 ~ 500 revs/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310377626.XA CN103447506B (en) | 2013-08-27 | 2013-08-27 | Low-melting alloy ultrasonic agitation compound smelting equipment |
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| CN201310377626.XA CN103447506B (en) | 2013-08-27 | 2013-08-27 | Low-melting alloy ultrasonic agitation compound smelting equipment |
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| CN103447506A CN103447506A (en) | 2013-12-18 |
| CN103447506B true CN103447506B (en) | 2016-04-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105499590A (en) * | 2015-12-14 | 2016-04-20 | 石京 | Preparation method and device of ceramic particle reinforced metal matrix composite powder |
| CN106513640B (en) * | 2016-10-28 | 2019-07-09 | 中南大学 | A kind of ultrasonic wave die casting method of steel alloy |
| CN112404402B (en) * | 2020-11-19 | 2021-11-09 | 深圳市天合兴五金塑胶有限公司 | Casting process of pore-free aluminum alloy |
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| JPS55139148A (en) * | 1979-04-14 | 1980-10-30 | Daido Steel Co Ltd | Ultrasonic wave casting method for steel ingot excellent in inner quality |
| JP5565115B2 (en) * | 2010-06-07 | 2014-08-06 | 日本軽金属株式会社 | Method for producing aluminum alloy |
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| CN1065195A (en) * | 1991-03-09 | 1992-10-14 | 中国人民解放军空军工程学院 | Ultrasonic cavitron |
| CN1454743A (en) * | 2002-04-29 | 2003-11-12 | 李素伟 | Ultrasonic variable amplitude bar and tool head vibrating mode and connecting apparatus |
| CN1478624A (en) * | 2003-07-08 | 2004-03-03 | 上海大学 | Power ultrasonic Lead-in method for improving metal hardened structure |
| CN1702188A (en) * | 2005-06-06 | 2005-11-30 | 辽宁工学院 | Method for preparing nanocystalline ingot casting by magnetic field and ultrasonic combined treatment of metal melt and dedicated apparatus therefor |
| CN1827809A (en) * | 2006-03-24 | 2006-09-06 | 哈尔滨工业大学 | Method and apparatus for preparing composite solder for welding particle enhanced aluminium-based composite material |
| CN101391290A (en) * | 2008-11-05 | 2009-03-25 | 江苏大学 | Method for synthesizing metal matrix composition using metal reaction under the coupling action of magnetic field and ultrasonic field |
| CN101612658A (en) * | 2009-07-28 | 2009-12-30 | 华南理工大学 | The ultrasonic agitation continuous casing and the device of preparation metal-base nanometer composite material |
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| CN203448652U (en) * | 2013-08-27 | 2014-02-26 | 广东工业大学 | Ultrasonic agitation composite smelting equipment for low-melting-point alloy |
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