CN1132710C - Horizontal conticaster dedicated for Mg-alloy - Google Patents
Horizontal conticaster dedicated for Mg-alloy Download PDFInfo
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- CN1132710C CN1132710C CN 01105715 CN01105715A CN1132710C CN 1132710 C CN1132710 C CN 1132710C CN 01105715 CN01105715 CN 01105715 CN 01105715 A CN01105715 A CN 01105715A CN 1132710 C CN1132710 C CN 1132710C
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Abstract
The present invention relates to a horizontal special conticaster for Mg-alloy. A crucible which is provided with a sealing cover and a protective gas input device is placed in a furnace body; a covering flux pool is arranged below the crucible; a composite crystallizer is installed at the outer edge of a sprue gate at the side part of a pouring furnace along the horizontal direction; the composite crystallizer adopts a composite structure which is formed from a graphite flow guiding sleeve, an inner red copper sleeve and an outer steel sleeve; a traction mechanism adopts a chain wheel type structure which is driven by a DC motor. The present invention adopts a gas shield way to melt and adopts a counterpressure way to transfer liquids, and Mg-alloy liquids are continuously cast and crystallized without oxidation or combustion under the condition of completely isolating from oxygen; the present invention adopts the composite crystallizer and a sliding type secondary cooling water nozzle, so the present invention has the advantages of favorable cooling effects on the casting blanks, high safety of the whole system, and high efficiency and reliability.
Description
Technical field:
The present invention relates to a kind of horizontal casting unit, relate in particular to a kind of horizontal caster that is exclusively used in magnesium alloy continuous casting, belong to technical field of material.
Background technology:
Magnesium and alloy tool low-gravity, high specific strength and specific stiffness and lower remarkable advantages such as the prices of raw and semifnished materials, recent two decades come Mg Alloy Research and use the attention that is subjected to material educational circles and industrial quarters day by day.Along with the enhancing of people's environmental protection consciousness and the requirement of energy savings; developing of automobile industry trend is the lightness of automobile; guaranteeing under the situation that the automobile original function requires; adopt light-alloy (aluminium alloy and magnesium alloy) parts to replace a large amount of iron and steel parts that use in the automobile as far as possible; in this case, magnesium alloy becomes the first-selected substitution material of iron and steel parts day by day.The various forming techniques of magnesium alloy and equipment are also corresponding to grow up, the production of the casting die of the most employing of magnesium alloy parts at present, but expansion along with the magnesium alloy range of application, magnesium alloy deformation product (as extrudate, rolling, punching press, forging parts) will become its development trend according to estimates, produce the then magnesium alloy continuous casting blank of essential high-quality of modified product such as various extrudates.
The continuous casting unit has research as the necessaries of producing various continuous casting billets in the prior art.As produce vertical casting machine, circular-arc type continuous casting machine, horizontal caster of cast steel etc.; produce the continuous up-casting machine of electrician's copper bar; the vertical semi-continuous casting machine of production aluminium ingot and horizontal caster etc.; but because magnesium alloy has very active chemical property; very easily produce oxidation, burning with the oxygen reaction; and magnesium liquid contacts the danger that generation " hydrogen is quick-fried " also arranged with water, and the conticaster of producing steel, copper, aluminium at present is owing to there not being special-purpose safeguard procedures can't avoid the possibility of contacting of liquid magnesium alloy and oxygen and magnesium liquid water breakthrough not to be suitable for the continuous casting of magnesium alloy.The report of vertical magnesium alloy continuous casting machine was once arranged the seventies, but this conticaster still adopts direct water spray mode to carry out the secondary cooling, in case cast failure, magnesium metal liquid easily takes place to be contacted with cooling water and causes the danger of " hydrogen is quick-fried ", simultaneously, the continuous casting billet length of vertical casting machine is subjected to its device-restrictive and very limited, and production efficiency is low, in fact be a kind of D.C.casting production, can't realize real continuous casting.According to data-searching, do not see the report of the horizontal casting unit of magnesium alloy special use at present in the world as yet.
Summary of the invention:
The objective of the invention is to develop a kind of horizontal conticaster dedicated for Mg-alloy, with safety, finish melting, protection and the continuous pouring of magnesium alloy efficiently, and can draw out the high-quality magnesium alloy strand of different shape.
For realizing such purpose, the present invention has designed a continuous casting unit that is specially adapted for magnesium alloy, by melting furnace, pouring furnace, back-pressure hydrocone type woven hose, gas shield mechanism, several parts such as crystallizer and sprocket-type haulage gear are formed, melting furnace adopts the resistance wire heating, furnace shell is the tetragonal structure that steel plate is welded, place the crucible that has seal cover and protective gas input unit in the body of heater, the crucible below is provided with the covering flux pond in the body of heater, can guarantee magnesium alloy melting under complete closed and gas protective condition like this, prevent magnesium alloy oxidation and burning in fusion process, in case crucible generation leakage also has safeguard measure; The fabricated structure that crystallizer adopts interior cover of graphite water conservancy diversion cover and red copper and steel overcoat to constitute both had been convenient to installation, dismounting and the replacement of crystallizer, and favorable cooling effect is arranged again; The sprocket-type structure that haulage gear adopts direct current generator to drive provides enough tractive force that strand is pulled out in crystallizer, and stable working, and is economical and practical.
Concrete structure of the present invention is: bottom of furnace body is provided with the molten bath that holds covering flux in the melting furnace; place fusion crucible on the molten bath; the sealed crucible lid is housed on the crucible; crucible cover and compressed air input pipe; protective gas input pipe and molten metal siphon pipe link to each other; siphon pipe one end inserts the molten metal in the crucible; the other end is connected in the pouring furnace; be provided with the unhurried current groove in the pouring furnace; the siphon pipe top is equipped with vent valve; protective cover is housed on the pouring furnace; and is furnished with the protective gas input unit; the pouring furnace sidepiece has the sprue gate, and its outer along continuous straight runs is equipped with fourplatemold, and crystallizer is connected with pouring furnace with flow throttling ball valves by seal felt; the secondary cooling water nozzle links to each other with crystallizer by bellows, and is rack-mount by the horizontal guide rail that sprocket wheel drives.
In the water mold, front end is the high purity graphite cover, and the rear end is a cover in the copper, and cover is processed with the cooling water helicla flute in the copper, in put and also have oil guiding hole, cover fit on steel overcoat has oil filler point and apopore above the steel overcoat in copper.
Compact conformation of the present invention is reasonable, the thinking novelty, the alloy liquid of fusing under the compressed-air actuated back-pressure effect from melting furnace in liquid-transport pipe-line flows into pouring furnace, and under siphonage, keep the balance of two stove inner metal liquid faces, alloy liquid in the pouring furnace from the side the sprue gate through ball valve, graphite cannula flows in the crystallizer of inserting good seeding ingot in advance, solidification and crystallization under the acting in conjunction that water mold and secondary cooling water directly cool off, and drive seeding ingot along continuous straight runs by haulage gear and outwards pull out, when continuous casting billet reaches specific length, close ball valve, pull out ingot casting and can obtain a qualified strand.Continuous casting is opened the vent valve on the liquid-transport pipe-line after finishing, and the alloy liquid in the pipeline just can flow back in two stoves.Owing to adopted the transfusion of melting of gas shield mode and back-pressure; liquid magnesium alloy carries out continuous pouring and crystallization under the condition of isolating oxygen fully; not oxidation is not burnt, and adopts fourplatemold and slidingtype secondary cooling water nozzle; make the strand cooling effect good; casting billet surface is bright and clean, dense internal organization, and also whole system is safe in utilization; easy to operate, the production efficiency height.
The present invention is suitable for the continuous casting of various light-alloys, is particularly suitable for the continuous casting of magnesium alloy.
Description of drawings:
Fig. 1 is an overall structure schematic diagram of the present invention.
Among Fig. 1, body of heater 1, molten bath 2, crucible 3; crucible cover 4, compressed air input pipe 5, protective gas input pipe 6, siphon pipe 7, vent valve 8; pouring furnace 9, unhurried current groove 10, protective cover 11, protective gas input unit 12; flow throttling ball valves 13, nozzle entrance hole 14, crystallizer 15, bellows 16; secondary cooling water nozzle 17, strand 18, seeding ingot 19, guide rail 20; sprocket wheel 21, support 22, seal felt 23.
Fig. 2 is the structural representation of combined type water mold among the present invention.
Among Fig. 2, high purity graphite cover 24, cover 25 in the copper, oil guiding hole 26, oil filler point 27, apopore 28, cooling water helicla flute 29, steel overcoat 30.
The specific embodiment:
Below by accompanying drawing technical scheme of the present invention is described in further detail.
Fig. 1 is an overall structure schematic diagram of the present invention.
As shown in the figure; horizontal caster is by melting furnace; pouring furnace; liquid-transport pipe-line; crystallizers etc. are partly formed; body of heater 1 is tetragonal structure in the melting furnace; liner thermal insulation fire-resistant brick; be provided with a molten bath 2 that holds covering flux in body of heater 1 bottom; on the molten bath, place fusion crucible 3 again; the crucible cover 4 that seals is housed on the crucible; crucible cover 4 and compressed air input pipe 5; protective gas input pipe 6 and molten metal siphon pipe 7 link to each other; siphon pipe 7 one ends insert the molten metal in the crucible; the other end then is connected in the pouring furnace 9, is provided with a unhurried current groove 10 in pouring furnace 9.At siphon pipe 7 tops a vent valve 8 is installed, protective cover 11 is housed on the pouring furnace, and be furnished with a protective gas input unit 12.Sidepiece at pouring furnace 9 has the sprue gate, and along continuous straight runs is equipped with fourplatemold 15 outside the sprue gate, and crystallizer 15 is connected with pouring furnace 9 with flow throttling ball valves 13 by seal felt 23.Secondary cooling water nozzle 17 links to each other with crystallizer by bellows 16; between crystallizer 15 and secondary cooling water nozzle 17, constitute enclosed environment; import protective gas by the entrance hole on the nozzle 14; form protective atmosphere on high temperature strand 18 surfaces, and the position of secondary cold water nozzle 17 can be adjusted freely by along continuous straight runs.Be provided with the guide rail 20 of horizontal direction below continuous casting billet 18, guide rail is installed on the support 22 that angle steel is welded into, and is driven by sprocket wheel 21, and under the acting in conjunction of guide rail, sprocket wheel and seeding ingot 19, the magnesium alloy strand is by pulling straight in the crystallizer.
As seen from the figure, in case crucible 3 uses and the effect of magnesium corrosion liquid magnesium alloy takes place is leaked owing to long-term, the alloy liquid of leakage directly bleeds in the molten bath 2 at the bottom of the melting furnace, and the flux the molten bath in is avoided danger such as generation burning rapidly with its covering.Crucible cover 4 seals, and protective gas is enclosed in the crucible 3, and the effect of unhurried current groove 10 then is to alleviate the impact to the pouring furnace melt of the molten metal that flows out from siphon pipe 7.The effect of vent valve 8 is when continuous casting finishes, can allow siphon pipe 7 interior melt-flow get back in melting furnace and the pouring furnace by opening vent valve 8.Easy for removal and installation by the crystallizer system that seal felt 23, flow throttling ball valves 13 and combined type water mold 15 are formed, and the crystallizer of replacing different size and shape.The position of secondary cooling water nozzle 17 can freely be adjusted by along continuous straight runs, is convenient to regulate according to actual needs the intensity of cooling and the crystallization rate of strand.
Fig. 2 is the structural representation of combined type water mold among the present invention.
Among the figure, front end is a high purity graphite cover 24 in the water mold, and the rear end is a cover 25 in the copper, and cover 25 is processed with cooling water helicla flute 29 in the copper, in put and also have oil guiding hole 26.Cover fit on steel overcoat 30 has oil filler point 27 and apopore 28 above the steel overcoat in copper.
As seen from the figure, high purity graphite cover 24 has steady water conservancy diversion and certain insulation effect, can avoid alloy liquid to cool off rapidly, adopting the purpose of cover 25 in the copper is to utilize its good heat-conducting that alloy liquid is carried out crystallisation by cooling, the effect of helicla flute 29 is that cooling water is flowed by crystallizer rear end forward end, make crystallizer have rational intensity of cooling and distribute, and cover 25 inner surfaces in the copper are lubricated the resistance when reducing continuous casting billet 18 tractions by oil filler point 27 and oil guiding hole 26 importing lubricating oil.Whole crystallizer is economical and practical, convenient disassembly, and assembling is flexibly.
Claims (2)
1; a kind of horizontal conticaster dedicated for Mg-alloy; it is characterized in that by melting furnace; pouring furnace; liquid-transport pipe-line; crystallizers etc. are partly formed; body of heater in the melting furnace (1) bottom is provided with the molten bath (2) that holds covering flux; place fusion crucible (3) on the molten bath; sealed crucible lid (4) is housed on the crucible; crucible cover (4) and compressed air input pipe (5); protective gas input pipe (6) and molten metal siphon pipe (7) link to each other; siphon pipe (7) one ends insert the molten metal in the crucible; the other end is connected in the pouring furnace (9); be provided with unhurried current groove (10) in the pouring furnace (9); siphon pipe (7) top is equipped with vent valve (8); protective cover (11) is housed on the pouring furnace; and is furnished with protective gas input unit (12); pouring furnace (9) sidepiece has the sprue gate; its outer along continuous straight runs is equipped with fourplatemold (15); crystallizer (15) is connected with pouring furnace (9) with flow throttling ball valves (13) by seal felt (23); secondary cooling water nozzle (17) links to each other with crystallizer by bellows (16), and the horizontal guide rail (20) that is driven by sprocket wheel (21) is installed on the support (22).
2, as the said horizontal conticaster dedicated for Mg-alloy of claim 1, it is characterized in that in the water mold (15), front end is high purity graphite cover (24), the rear end is a cover (25) in the copper, cover (25) is processed with cooling water helicla flute (29) in the copper, in put and also have oil guiding hole (26), cover fit on steel overcoat (30) has oil filler point (27) and apopore (28) above the steel overcoat in copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01105715 CN1132710C (en) | 2001-03-22 | 2001-03-22 | Horizontal conticaster dedicated for Mg-alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01105715 CN1132710C (en) | 2001-03-22 | 2001-03-22 | Horizontal conticaster dedicated for Mg-alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1317383A CN1317383A (en) | 2001-10-17 |
| CN1132710C true CN1132710C (en) | 2003-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01105715 Expired - Fee Related CN1132710C (en) | 2001-03-22 | 2001-03-22 | Horizontal conticaster dedicated for Mg-alloy |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109311527A (en) * | 2016-03-21 | 2019-02-05 | 吉宝岸外与海事技术中心 | Seabed remotely operates the depressed place submersible (ROV) |
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| CN100400198C (en) * | 2003-08-07 | 2008-07-09 | 李华伦 | Double roll super high speed continuous casting production line for thin magnesium strip |
| CN1325197C (en) * | 2003-08-07 | 2007-07-11 | 李华伦 | Double roll super high speed continuous casting machine for thin magnesium strip |
| KR100591619B1 (en) * | 2004-11-04 | 2006-06-20 | 한국기계연구원 | An apparatus for horizontal continuous casting of magnesium alloys plate and manufacturing method thereof |
| CN100348347C (en) * | 2005-08-15 | 2007-11-14 | 西安理工大学 | Equipment for horizontal continuous casting magnesium alloy wire material and horizontal continuous casting method thereof |
| CN100463744C (en) * | 2006-05-09 | 2009-02-25 | 赣南师范学院 | Casting machine with vacuum siphon tapped magnesium alloy |
| CN101797637A (en) * | 2010-04-20 | 2010-08-11 | 上海交通大学 | Duplex type magnesium alloy continuous casting device |
| CN101985164B (en) * | 2010-11-30 | 2012-10-10 | 金川集团有限公司 | Copper and copper alloy casting equipment under protection of nitrogen |
| CN102632226B (en) * | 2012-03-28 | 2013-04-10 | 攀枝花市立宇矿业有限公司 | Ingot casting method, equipment, accessory and refining and ingot casting integrated production process |
| CN102994779B (en) * | 2013-01-09 | 2017-03-01 | 九洲资源控股集团有限公司 | Tunnel type Two-way Cycle vacuum smelting furnace and its method |
| CN104107889B (en) * | 2013-04-16 | 2016-02-10 | 沈阳华铸科技有限公司 | Large-cross-section nodular cast iron horizontal casting production technology and graphite jig device thereof |
| CN103878348B (en) * | 2014-03-24 | 2015-08-19 | 中国重型机械研究院股份公司 | A kind of magnesium alloy board continuous producing apparatus and technique |
| CN104014752B (en) * | 2014-05-30 | 2016-08-10 | 上海坤孚企业(集团)有限公司 | A kind of semicontinuous many ingot casting casting systems of vertical direct water-cooling |
| CN104550805B (en) * | 2015-02-08 | 2016-10-19 | 东北大学 | A kind of deformation magnesium alloy ingot blank preparation facilities and method |
| CN104972093A (en) * | 2015-07-03 | 2015-10-14 | 朱洋 | Anti-explosion magnesium alloy pouring furnace |
| CN106270434A (en) * | 2016-11-01 | 2017-01-04 | 东莞市逸昊金属材料科技有限公司 | A kind of novel amorphous master alloy ingot continuous casting system and using method thereof |
| CN107421337A (en) * | 2017-07-14 | 2017-12-01 | 芜湖鼎瀚再制造技术有限公司 | A kind of metal melting furnaces cooling water storage device |
| CN108817339B (en) * | 2018-06-20 | 2020-04-14 | 北京科技大学 | Negative pressure continuous casting device and negative pressure continuous casting method |
| CN111780553B (en) * | 2020-05-14 | 2022-04-12 | 西安航空职业技术学院 | Refined magnesium liquid transfer device |
-
2001
- 2001-03-22 CN CN 01105715 patent/CN1132710C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109311527A (en) * | 2016-03-21 | 2019-02-05 | 吉宝岸外与海事技术中心 | Seabed remotely operates the depressed place submersible (ROV) |
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| Publication number | Publication date |
|---|---|
| CN1317383A (en) | 2001-10-17 |
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