CN104174823A - Clad material solid/liquid composite continuous-casting forming device and method - Google Patents
Clad material solid/liquid composite continuous-casting forming device and method Download PDFInfo
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- CN104174823A CN104174823A CN201410440799.6A CN201410440799A CN104174823A CN 104174823 A CN104174823 A CN 104174823A CN 201410440799 A CN201410440799 A CN 201410440799A CN 104174823 A CN104174823 A CN 104174823A
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Abstract
The invention discloses a clad material solid/liquid composite continuous-casting forming device and method and belongs to the technical field of clad material continuous casting. A core product protecting device, a guide pipe, a reverse coagulator and the like are installed on the side of a crucible, a core material is not heated in advance, the designed small-capacity reverse coagulator is used for preventing the core material from penetrating a cladding layer metal melt for a long period of time, the melt flows out of the side of the bottom of the crucible by relying on self weight, the sizes of the reverse coagulator and a water-cooling crystallizer are effectively regulated and controlled, and other measures are adopted, so that a high-quality clad material with required shape and size is formed through continuous casting. The clad material solid/liquid composite continuous-casting forming device is simple in structure, convenient to operate and maintain, reasonable and compact in layout, high in production efficiency, low in investment, short in forming process, energy-saving, environment-friendly, efficient and low in cost, parts are easy to replace, automatic control is easy to achieve, large-scale industrial production is facilitated, combination freedom degree of cladding layer metal and core material metal is high, and the prepared clad material is good in quality and performance.
Description
Technical field
The invention belongs to clad material continuous casting technology field, be specifically related to a kind of clad material solid-liquid composite continuous casting former and method.
Technical background
Clad material is the composite of coated one deck dissimilar metal on core, have the advantage of clad metal and core metal concurrently, not only Integrated using excellent performance, and greatly reduce the consumption of precious metal, reduce cost, therefore of many uses in fields such as Aero-Space, energy environment protection, building machinery, petrochemical industry, communications and transportation, electronic information, defence and military and daily lifes, be a prior development direction of current composite.
Traditional clad material manufacturing process mainly comprises core coating surface method (as galvanoplastic, electroless plating method, displacement plating method etc.), solid phase composite algorithm (as clad welded method, jacket plastic working composite algorithm) and composite casting.First two method, having brought into play certain positive role aspect the shaping of clad material, is also applied in the production of some clad materials; But these two kinds of methods also exist separately significantly shortcoming.For example, some method environmental pollutions are large, clad metal thickness is thinner, interface bond strength is low; Some method equipment investments are large, production procedure is long, be difficult to realize continuous production, production efficiency is low, compound interface is second-rate, clad metal thickness is limited and cladding ratio is difficult to that the quality and performance of accurate control, clad material is unstable, production cost is high.And clad material composite casting based on metal bath not only has the remarkable advantages such as short flow process, nearly end form, high efficiency, low cost, environmental protection, applied range, and easily realize serialization, automation and the mass production of clad material, be a kind of mainstream technology and the important development trend that clad material is shaped, its research and development and applying day by day come into one's own.
The continuous composite casting of clad material based on metal bath can be divided into two large classes at present, one class is the composite casting (as double-current casting, horizontal magnetic field braking composite continuous casting method) that adopts two kinds of metal baths to carry out direct combination shaping, another kind of for adopting clad metal bath to carry out continuously the coated composite casting (as reverse solidification method, hot dipping method) being shaped to the solid core being shaped.Last class methods are two kinds of metal baths due to what adopt, exist the unmanageable mixing of easy occurrence degree or excessively compound in interface of two kinds of metal baths, also very easily generate intermetallic compound, easily occur that interfacial layer thickness is inhomogeneous, the problems such as interface bond strength is difficult to ensure and the uniformity of interface quality is poor, simultaneously to device fabrication, technological level, operative skill and automation control require very high, particularly correct control and Proper Match technological parameter, metal interfaces combination is good and interface stability is more difficult to make two kinds, and investment is large, required energy consumption is high, the combination free degree of metal is also limited significantly, therefore seriously having restricted it applies.Rear class methods are owing to having adopted the solid core being shaped, therefore many shortcomings of last class methods have been overcome, the difficulty of equipment, technique and control also reduces greatly, so these class methods become the current clad material composite casting main method adopting that is shaped, and have obtained practical application in the production of some clad materials; But existing these class methods also exist deficiency separately.
Such as, reverse solidification method is through clad metal bath core (being generally sheet metal strip), clad metal bath is attached to core surface solidification, the two forms metallurgical binding in interface, and along with the continuous movement of core, the clad metal thickness of core surface solidification progressively increases, until completely by clad metal bath, then by a pair roller, the clad material of formed thereby is rolled, reach flat surface, control the object of clad material thickness, the final a kind of process that obtains required clad material, be mainly used in the progressive forming of coated band.Reverse solidification is that clad metal bath solidifies on its surface by the heat conduction of core, there is no the cooled and solidified effect of the crystallizer of traditional continuous casting, and therefore crystallizer is not installed on reverse solidification equipment yet.While adopting traditional reverse solidification method shaping clad material, be immersed in for a long time in clad metal bath except existing core, core is easily melted outside the problem of too much or fusing, also exist clad metal thickness and be difficult to stable control, the correct control of preparation technology parameter and Proper Match are more difficult, the problems such as interfacial diffusion layer thickness and interface quality (as easy generation intermetallic compound etc.) are difficult to control, and clad metal surface is second-rate.Hot dipping method is that the core (being generally metal wire rod) preheating is immersed in clad metal bath, make between core and clad metal the transition zone in interface formation metallurgical binding by modes such as dissolving, chemical reaction and diffusions, in the time that core proposes from clad metal bath, clad metal bath in transition zone surface attachment becomes clad metal through cooled and solidified, thereby obtain a kind of process of required clad material, be mainly used in the progressive forming of cladding wires.Equally, hot-dip coating installation is not installed crystallizer yet.While adopting hot dipping method shaping clad material, core need to be preheating to certain high temperature in advance, and core also can be immersed in clad metal bath the long period, high temperature core in clad metal bath more easily by excessive corrode, the interfacial diffusion layer thickness of clad material, interface quality (as easy generation intermetallic compound etc.) and clad metal thickness are difficult to control, and the thickness evenness of clad metal and stability are difficult to ensure, clad metal surface is second-rate, equipment complexity, investment simultaneously greatly, technical difficulty is large, and production cost is high.Some other composite casting (method as coated in horizontal casting of just at developing employing clad metal bath, the solid core being shaped being carried out coated shaping continuously, under draw the coated method of continuous casting, end form casting is coated method) also exist variety of issue, mainly comprise that core will be heated in advance, flow process is longer, core is anti-oxidation to have high input, required auxiliary facility is many, equipment complexity, complex operation, energy consumption is large, production cost is high, or core need to be through heated clad metal bath always, core surface is easily by excessive corrode, core metallic element easily diffuses in clad metal bath and pollutes, clad material quality and performance is difficult to meet high standard instructions for use etc.And above-mentioned existing employing clad metal bath carries out continuously the coated composite casting being shaped to the solid core being shaped and also all has a common shortcoming, the continuous casting that cannot realize the large scale clad material that is difficult to batch is shaped.
Therefore; be badly in need of a kind of clad metal bath that adopts of exploitation the solid core being shaped is carried out continuously to coated novel device and the method being shaped; avoid or reduce the pollution on clad metal bath such as core and core protective device and the impact of clad material quality; short flow process, nearly end form, high efficiency, energy-saving and cost-reducing, environmental protection, low cost continuous casting shaping high-performance clad material, the continuous casting that will be applicable to especially the large scale clad material that is difficult to batch is shaped.
Summary of the invention
The present invention introduces reverse solidification principle, forward solidifying continuously casting Forming Theory with metal bath in crystallizer combines, form a kind of dual solidifying continuously casting technology, and by taking core protective device, mozzle, reverse solidification device etc. is installed on crucible side, do not heat in advance core, design low capacity reverse solidification device, avoid core from pass heated clad metal bath always, make clad metal bath rely on self gravitation to cross mozzle from crucible bottom side horizontal flow and enter the reverse solidification device and the crystallizer that are installed on crucible side, simplified apparatus structure, the measures such as the size of Effective Regulation reverse solidification device and water mold, realize short flow process, nearly end form, high efficiency, energy-saving and cost-reducing, environmental protection, low cost continuous casting shaping required form size high-quality clad material.The object of this invention is to provide a kind of clad material solid-liquid composite continuous casting former and method (being called for short " being sidelong formula cored continuous metal cast process "); avoid or reduce the pollution on clad metal bath such as core and core protective device and the impact of clad material quality, being specially adapted to clad melting point metal and being shaped lower than the large-size high-quality clad material continuous casting that is difficult to batch of core melting point metal.
A kind of clad material solid-liquid composite continuous casting former, is made up of core guiding and positioning device, core protective device, crucible, heater, mozzle, reverse solidification device, water mold, secondary cooling apparatus, haulage gear, dummy bar.It is characterized in that, core guiding and positioning device, core protective device, reverse solidification device, water mold, secondary cooling apparatus and haulage gear are disposed on same axis successively along dummy ingot direction; Core guiding and positioning device is driven member, be arranged on the rear end of core protective device along dummy ingot direction, play the effect of accurate centering location and guiding constraint core, under the drive of haulage gear, realize core is carried continuously through core protective device, reverse solidification device, water mold and secondary cooling apparatus, the movement velocity of core guiding and positioning device is subject to the restriction of driving link haulage gear; Core protective device is to play sealing, anti-oxidation and centering positioning action by its inner core, the clad metal bath in reverse solidification device carried out to side seal and overflow avoiding; Crucible is installed on the side of mozzle, and the axis of crucible is vertical with the axis of mozzle, for splendid attire clad metal bath; Heater is installed on crucible around or embeds in sidewall of crucible or be wrapped in crucible outer surface, for crucible and clad metal bath are heated and insulation; Mozzle is installed on the side of crucible, the axis of mozzle is vertical with the axis of crucible, its arrival end is connected with crucible side outer surface, and the port of export is connected with reverse solidification device, and the clad metal bath in crucible enters in reverse solidification device and water mold by mozzle; Reverse solidification device is close to core protective device outlet, and the axis of reverse solidification device is vertical with the axis of mozzle, makes clad metal bath, on preheating core surface not, pressure reverse solidification occur, and realizes clad metal bath and solidifies at the thin layer on core surface; Water mold is closely connected with reverse solidification device, ensure that the clad metal bath that enters water mold from reverse solidification device realizes quick forward and solidify, the interface that suppresses to have solidified clad metal and the core generation intermetallic compound that continues to react before leaving water cooling crystallizer, and obtain the clad metal of desired thickness, guarantee uniformity and the uniformity of clad metal thickness, enhance productivity; Secondary cooling apparatus, between water mold and haulage gear, is realized further cooling to clad material; After haulage gear is arranged on secondary cooling apparatus, for realizing pulling straight clad material; Dummy bar head end is connected with core is anterior; be positioned in reverse solidification device; the outlet of core protective device is close at the top of dummy bar head end; draft tube outlets is close in the side of dummy bar head end; before starting, plays continuous casting the effect of blocking in clad metal bath inflow reverse solidification device; when just having started, blocks continuous casting the outlet of water mold; make clad metal bath compound with core in reverse solidification device and water mold; then constantly pull-out under the effect of haulage gear, the continuous casting of realizing clad material is shaped.
Described a kind of clad material solid-liquid composite continuous casting former, described crucible can replace with tundish, so that produce continuously; Can near the basis of the described secondary cooling apparatus arranging described water mold outlet, again implement cooling.
Described a kind of clad material solid-liquid composite continuous casting former, described core protective device adopts graphite, pottery or metal to make; Described heater adopts external heat source or induction heater.
Described a kind of clad material solid-liquid composite continuous casting former, secondary mozzle is installed in described crucible side, its arrival end is connected with described crucible side outer surface, the port of export is connected with described water mold, the part clad metal bath described mozzle of can not flowing through, directly enters described water mold from the described crucible secondary mozzle of flowing through.
Described a kind of clad material solid-liquid composite continuous casting former is that described crucible is positioned in the environment of air or vacuum or nitrogen or inert gas or reducibility gas protection; Whole continuous casting forming process can adopt Artificial Control or computer control; Continuous cast method can be any in top-guiding type, pull-down, horizontal, arc form or tilting.
A kind of clad material solid-liquid composite continuous casting manufacturing process, is characterized in that, preparation technology is: under air, vacuum or nitrogen or inert gas or reducibility gas protective condition, by heater, the clad metal bath in crucible is heated and is incubated; Start haulage gear, make core start to move towards dummy ingot direction through core guiding and positioning device and core protective device, mozzle position is left in the side of dummy bar head end simultaneously; Clad metal bath in crucible enters reverse solidification device from crucible bottom side inflow mozzle subsequently, by the clad metal bath of high temperature and core the contacting in reverse solidification device of not preheating, there is the pressure reverse solidification of moment, realize clad metal bath and solidify at the thin layer on core surface; And then not solidified clad metal bath enters in the gap between water mold and the surperficial core with thin layer clad metal, under the pressure cooling effect of water mold, not solidified clad metal bath occurs to solidify completely, the clad material that formation interface is metallurgical binding; The clad material of preparation is further cooled when through secondary cooling apparatus; Under the effect of haulage gear, the continuous casting of realizing clad material is shaped.The required cooling velocity of clad metal is controlled by casting speed, the intensity of cooling of water mold and the heating-up temperature of heater of haulage gear.
Described a kind of clad material solid-liquid composite continuous casting manufacturing process, can be filled with nitrogen, inert gas or reducibility gas in described core protective device.
Described a kind of clad material solid-liquid composite continuous casting manufacturing process, described core can be at least one in metal wire rod, bar, tubing, sheet material or section bar, quantity can be one or be no less than two.
Described a kind of clad material solid-liquid composite continuous casting manufacturing process, in the time that core is metal pipe material or hollow metal section bar, sealing core two ends also vacuumize, or in metal pipe material or hollow metal section bar, be filled with continuously nitrogen or inert gas or reducibility gas in continuous casting forming process.
Described a kind of clad material solid-liquid composite continuous casting manufacturing process, described metal can be simple metal, alloy or metallic composite.
Described a kind of clad material solid-liquid composite continuous casting manufacturing process, described clad material can be cladding wires, bar, tubing, sheet material or section bar.
The invention has the advantages that:
Clad material solid-liquid composite continuous casting former simple in structure, save that the energy, flexibility are high, highly versatile, applied widely, part replacement is easy, operation and maintenance is convenient, safe and reliable, rational and compact, small investment, production efficiency are high, long service life, easily realize control automatically, without complicated spooler and tall and big factory building and melt pit, be applicable to large-scale industrial production and apply.
2. the design and use of clad material solid-liquid composite continuous casting former Small And Medium Capacity reverse solidification device, make core only in low capacity reverse solidification device with clad metal bath short-time contact, and there is very soon reverse solidification, core is not through crucible simultaneously, while having avoided conventional counter to solidify middle core through crucible, contact with the clad metal bath long period superheated causing, corrode even core is fused completely, without the extra anti-oxidation technology problem of considering to cause therefrom, also reduce or avoided the generation of clad material interface intermetallic compound and core metallic element to diffuse into the problem polluting in crucible internal coating metal bath, the high-quality that is conducive to the reverse solidification stage forces reverse solidification to be shaped, easily control the Compound Degree of clad metal and core metal, production efficiency and clad metal, the quality of compound interface and clad material increases substantially, and the impacts of technological parameter fluctuation on clad metal thickness and clad material interface quality etc. such as clad metal bath heating-up temperature are avoided.
3. the dummy bar in clad material solid-liquid composite continuous casting former not only plays dummy ingot effect, and before continuous casting starts, play and block clad metal bath and flow into the effect in reverse solidification device, simple, control reliable, easy to operate, save and adopted other to block complexity and the triviality of mechanism at aspects such as design, installation and uses, also avoided blocking the pollution problem that mechanism likely causes to clad metal bath.
4. clad material solid-liquid composite continuous casting former adopts external water mold separately, is easy to realize rapid solidification, and the interface element that has reduced clad material too much spreads, and reduces or avoided the generation of intermetallic compound, has improved production efficiency simultaneously; Clad metal bath relies on self gravitation to flow into mozzle from crucible bottom side, without the liquid level control device of solid or gas pressure, has reduced cost, has reduced pollution; Clad metal bath flows into mozzle from crucible bottom side, impurity, gas and waste residue in clad metal bath upwards got rid of or floated on the clad metal bath surface in crucible, can not enter in mozzle, therefore ensure the purity of clad metal bath in mozzle, improved the quality and performance of clad metal and clad material.
5. in clad material solid-liquid composite continuous casting former, core protective device is installed on outside crucible; without considering, core is carried out to heat insulation processing; eliminate the pollution of core protective device to clad metal bath, avoided the challenge such as core protective device and the material selection of core heat-barrier material and mechanism design and manufacture.
6. the core that clad material solid-liquid composite continuous casting manufacturing process adopts is room temperature state, do not utilize drying oven or heating furnace in advance they to be carried out to the dry or preheating under certain high temperature, save the energy, simplify equipment, shorten flow process, particularly avoid heating the anti-oxidation control that core surface was too much oxidized or need to be too strict before entering clad metal bath, prevent from heating core and entered the generation of clad metal bath local dissolving or chemical reaction fast, reduce or avoided the generation of excessive corrode and intermetallic compound, be conducive to obtain the high and smooth compound interface of bond strength, interface quality between core and clad metal and the quality of clad material are improved.
7. clad material solid-liquid composite continuous casting manufacturing process adopts clad metal and the combination free degree of core metal are large, also can normally be shaped even be easy to produce two kinds of metals of intermetallic compound; And the profile of core and clad material and change in size scope large, be particularly conducive to continuous casting shaping clad metal thickness and the larger-size clad material of clad material itself.
8. clad material solid-liquid composite continuous casting manufacturing process not only can be prepared the clad material that clad metal thickness is thinner, and can be in the situation that keeping reverse solidification device low capacity, control clad metal thickness by the gap width of adjusting between water mold and core, additionally provide clad metal bath by secondary mozzle, prepare the clad material that clad metal thickness is large, realize regulation and control clad metal thickness effectively arbitrarily, prepare the large clad material of clad metal thickness excursion, expand the description of clad material.
9. clad material solid-liquid composite continuous casting manufacturing process has the features such as short flow process, nearly end form, high efficiency, energy-saving and cost-reducing, environmental protection, production cost are low, can prepare clad metal compaction, clad metal thickness evenly or the variable thickness of different parts, cladding ratio stable, compound interface is metallurgical binding, clean smooth and bond strength is high, and the clad material that purity is high, quality is good, performance is excellent.
10. utilize clad material solid-liquid composite continuous casting former and method can realize the continuous production of endless clad material, be specially adapted to core melting point metal and be shaped higher than the large-size high-quality that is difficult to batch of clad melting point metal and the continuous casting of high-performance clad material.
Brief description of the drawings
Fig. 1 is clad material solid-liquid composite continuous casting former schematic diagram of the present invention.Wherein, (1) is core, and (2) are core guiding and positioning device; (3) be core protective device, (4) are clad metal bath, and (5) are crucible; (6) be heater; (7) be mozzle, (8) are reverse solidification device, and (9) are water mold; (10) be secondary cooling apparatus; (11) be haulage gear, (12) are clad material, and (13) are dummy bar.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is specifically described; be necessary to be pointed out that at this present embodiment is only used to further illustrate the present invention; can not be interpreted as limiting the scope of the invention; every any nonessential improvement and adjustment of following examples being done according to the technology of the present invention essence, all still belongs in the protection domain of technical solution of the present invention.
A kind of clad material solid-liquid composite continuous casting former, is made up of core guiding and positioning device (2), core protective device (3), crucible (5), heater (6), mozzle (7), reverse solidification device (8), water mold (9), secondary cooling apparatus (10), haulage gear (11), dummy bar (13).It is characterized in that, core guiding and positioning device (2), core protective device (3), reverse solidification device (8), water mold (9), secondary cooling apparatus (10) and haulage gear (11) are disposed on same axis successively along dummy ingot direction, core guiding and positioning device (2) is driven member, be arranged on the rear end of core protective device (3) along dummy ingot direction, play the effect of accurate centering location and guiding constraint core (1), under the drive of haulage gear (11), realize core (1) is carried continuously through core protective device (3), reverse solidification device (8), water mold (9) and secondary cooling apparatus (10), the movement velocity of core guiding and positioning device (2) is subject to the restriction of driving link haulage gear (11), core protective device (3) is to playing sealing, anti-oxidation and centering positioning action by its inner core (1), the clad metal bath (4) in reverse solidification device (8) carried out to side seal and overflow avoiding, crucible (5) is installed on the side of mozzle (7), and the axis of crucible (5) is vertical with the axis of mozzle (7), for splendid attire clad metal bath (4), heater (6) is installed on crucible (5) around or embeds in crucible (5) wall or be wrapped in crucible (5) outer surface, for crucible (5) and clad metal bath (4) are heated and insulation, mozzle (7) is installed on the side of crucible (5), the axis of mozzle (7) is vertical with the axis of crucible (5), its arrival end is connected with crucible (5) side outer surface, the port of export is connected with reverse solidification device (8), and the clad metal bath (4) in crucible (5) enters in reverse solidification device (8) and water mold (9) by mozzle (7), reverse solidification device (8) is close to core protective device (3) outlet, the axis of reverse solidification device (8) is vertical with the axis of mozzle (7), make clad metal bath (4) occur to force reverse solidification on the surface of preheating core (1) not, realize clad metal bath (4) and solidify at the thin layer on core (1) surface, water mold (9) is closely connected with reverse solidification device (8), ensure that the clad metal bath (4) that enters water mold (9) from reverse solidification device (8) realizes quick forward and solidify, the interface that suppresses to have solidified clad metal and core (1) is at the front generation intermetallic compound that continues to react of leaving water cooling crystallizer (9), and obtain the clad metal of desired thickness, guarantee uniformity and the uniformity of clad metal thickness, enhance productivity, secondary cooling apparatus (10) is positioned between water mold (9) and haulage gear (11), realizes further cooling to clad material (12), haulage gear (11) is arranged on secondary cooling apparatus (10) afterwards, for realizing pulling straight clad material (12), dummy bar (13) head end is connected with core (1) is anterior, be positioned in reverse solidification device (8), core protective device (3) outlet is close at the top of dummy bar (13) head end, mozzle (7) outlet is close in the side of dummy bar (13) head end, before starting, plays continuous casting the effect of blocking in clad metal bath (4) inflow reverse solidification device (8), when just having started, blocks continuous casting the outlet of water mold (9), make clad metal bath (4) compound with core (1) in reverse solidification device (8) and water mold (9), then constantly pull-out under the effect of haulage gear (11), the continuous casting of realizing clad material (12) is shaped.
Described a kind of clad material solid-liquid composite continuous casting former, the available tundish of described crucible (5) replaces, so that produce continuously; Can near the basis of the described secondary cooling apparatus (10) arranging described water mold (9) outlet, again implement cooling.
Described a kind of clad material solid-liquid composite continuous casting former, described core protective device (3) adopts graphite, pottery or metal to make; Described heater (6) adopts external heat source or induction heater.
Described a kind of clad material solid-liquid composite continuous casting former, secondary mozzle is installed in described crucible (5) side, its arrival end is connected with described crucible (5) side outer surface, the port of export is connected with described water mold (9), part clad metal bath (4) the described mozzle (7) of can not flowing through, directly enters described water mold (9) from described crucible (5) the secondary mozzle of flowing through.
Described a kind of clad material solid-liquid composite continuous casting former is that described crucible (5) is positioned in the environment of air or vacuum or nitrogen or inert gas or reducibility gas protection; Whole continuous casting forming process can adopt Artificial Control or computer control; Continuous cast method can be any in top-guiding type, pull-down, horizontal, arc form or tilting.
Embodiment 1:
Core is that the Q235 Steel Bar of diameter 15mm, the copper covered steel composite bar continuous casting that clad fine copper thickness is 1mm are shaped.
Under air conditions, by heater (6), the clad fine copper melt in crucible (5) is heated and is incubated to 1200 DEG C; In continuous casting forming process, in core protective device (3), be filled with continuously nitrogen; Start haulage gear (11), make Q235 Steel Bar start to move towards dummy ingot direction through core guiding and positioning device (2) and core protective device (3), mozzle (7) position is left in the side of dummy bar (13) head end simultaneously; Clad fine copper melt in crucible (5) enters reverse solidification device (9) from crucible (5) bottom sides inflow mozzle (7) subsequently, by the clad fine copper melt of high temperature and Q235 Steel Bar the contacting in reverse solidification device (9) of not preheating, there is the pressure reverse solidification of moment, realize clad fine copper melt and solidify at the thin layer on Q235 Steel Bar surface; And then not solidified clad fine copper melt enters in the gap between water mold (9) and the surperficial Q235 Steel Bar with thin layer clad fine copper, under the pressure cooling effect of the water mold (9) of 20 DEG C of cooling water flow 1300L/h, cooling water temperature, not solidified clad fine copper melt occurs to solidify completely, the copper covered steel composite bar that formation interface is metallurgical binding; The copper covered steel composite bar of preparation is further cooled when through secondary cooling apparatus (10); Under effect at haulage gear (11) with casting speed 120mm/min, realize core and be the Q235 Steel Bar of diameter 15mm, the continuous casting of copper covered steel composite bar that clad fine copper thickness is 1mm is shaped.
Embodiment 2:
Core is that the silver-colored copper-clad composite wire continuous casting that pure copper wires, the clad fine silver thickness of diameter 2mm is 0.2mm is shaped.
Under argon shield condition, by heater (6), the clad fine silver melt in crucible (5) is heated and is incubated to 1050 DEG C; In continuous casting forming process, in core protective device (3), be filled with continuously argon gas; Start haulage gear (11), make core pure copper wires start to move towards dummy ingot direction through core guiding and positioning device (2) and core protective device (3), mozzle (7) position is left in the side of dummy bar (13) head end simultaneously; Clad fine silver melt in crucible (5) enters reverse solidification device (9) from crucible (5) bottom sides inflow mozzle (7) subsequently, by the clad fine silver melt of high temperature and pure copper wires the contacting in reverse solidification device (9) of not preheating, there is the pressure reverse solidification of moment, realize clad fine silver melt and solidify at the thin layer on pure copper wires surface; And then not solidified clad fine silver melt enters in the gap between water mold (9) and the surperficial pure copper wires with thin layer clad fine silver, under the pressure cooling effect of the water mold (9) of 20 DEG C of cooling water flow 1100L/h, cooling water temperature, not solidified clad fine silver melt occurs to solidify completely, the silver-colored copper-clad composite wire that formation interface is metallurgical binding; The silver-colored copper-clad composite wire of preparation is further cooled when through secondary cooling apparatus (10); Under effect at haulage gear (11) with casting speed 100mm/min, the continuous casting of realizing pure copper wires that core is diameter 2mm, silver-colored copper-clad composite wire that clad fine silver thickness is 0.2mm is shaped.
Embodiment 3:
Core is that the C.P.Ti tube of diameter 6mm, wall thickness 1mm and copper-clad composite ti pipe material continuous casting that clad fine copper thickness is 1mm are shaped.
Under argon shield condition, by heater (6), the clad fine copper melt in crucible (5) is heated and is incubated to 1150 DEG C; In continuous casting forming process, in core protective device (3) and C.P.Ti tube, be filled with continuously argon gas respectively; Start haulage gear (11), make core C.P.Ti tube start to move towards dummy ingot direction through core guiding and positioning device (2) and core protective device (3), mozzle (7) position is left in the side of dummy bar (13) head end simultaneously; Clad fine copper melt in crucible (5) enters reverse solidification device (9) from crucible (5) bottom sides inflow mozzle (7) subsequently, by the clad fine copper melt of high temperature and C.P.Ti tube the contacting in reverse solidification device (9) of not preheating, there is the pressure reverse solidification of moment, realize clad fine copper melt and solidify at the thin layer on C.P.Ti tube surface; And then not solidified clad fine copper melt enters in the gap between water mold (9) and the surperficial C.P.Ti tube with thin layer clad fine copper, under the pressure cooling effect of the water mold (9) of 20 DEG C of cooling water flow 1000L/h, cooling water temperature, not solidified clad fine copper melt occurs to solidify completely, the copper-clad composite ti pipe material that formation interface is metallurgical binding; The copper-clad composite ti pipe material of preparation is further cooled when through secondary cooling apparatus (10); Under effect at haulage gear (11) with casting speed 120mm/min, realizing core is that the C.P.Ti tube of diameter 6mm, wall thickness 1mm and the continuous casting of the copper-clad composite ti pipe material that clad fine copper thickness is 1mm are shaped.
Embodiment 4:
Core is that the Q235 carbon sheet of thickness 10mm, the copper covered steel composite board continuous casting that clad fine copper thickness is 1mm are shaped.
Under argon shield condition, by heater (6), the clad fine copper melt in crucible (5) is heated and is incubated to 1150 DEG C; In continuous casting forming process, in core protective device (3), be filled with continuously argon gas; Start haulage gear (11), make Q235 carbon sheet start to move towards dummy ingot direction through core guiding and positioning device (2) and core protective device (3), mozzle (7) position is left in the side of dummy bar (13) head end simultaneously; Clad fine copper melt in crucible (5) enters reverse solidification device (9) from crucible (5) bottom sides inflow mozzle (7) subsequently, by the clad fine copper melt of high temperature and Q235 carbon sheet the contacting in reverse solidification device (9) of not preheating, there is the pressure reverse solidification of moment, realize clad fine copper melt and solidify at the thin layer on Q235 carbon sheet surface; And then not solidified clad fine copper melt enters in the gap between water mold (9) and the surperficial Q235 carbon sheet with thin layer clad fine copper, under the pressure cooling effect of the water mold (9) of 22 DEG C of cooling water flow 1200L/h, cooling water temperature, not solidified clad fine copper melt occurs to solidify completely, the copper covered steel composite board that formation interface is metallurgical binding; The copper covered steel composite board of preparation is further cooled when through secondary cooling apparatus (10); Under effect at haulage gear (11) with casting speed 100mm/min, realize core and be the Q235 carbon sheet of thickness 10mm, the continuous casting of copper covered steel composite board that clad fine copper thickness is 1mm is shaped.
Embodiment 5:
Core is that 304 stainless steel barses of diameter 8mm, the compound bar continuous casting of brass bag stainless steel that clad H70 brass thickness is 1mm are shaped.
Under argon shield condition, by heater (6), the clad H70 brass melt in crucible (5) is heated and is incubated to 1000 DEG C; In continuous casting forming process, in core protective device (3), be filled with continuously argon gas; Start haulage gear (11), make 304 stainless steel barses start to move towards dummy ingot direction through core guiding and positioning device (2) and core protective device (3), mozzle (7) position is left in the side of dummy bar (13) head end simultaneously; Clad H70 brass melt in crucible (5) enters reverse solidification device (9) from crucible (5) bottom sides inflow mozzle (7) subsequently, by the clad H70 brass melt of high temperature and 304 stainless steel barses the contacting in reverse solidification device (9) of not preheating, there is the pressure reverse solidification of moment, realize clad H70 brass melt and solidify at the thin layer on 304 stainless steel bars surfaces; And then not solidified clad H70 brass melt enters in the gap between water mold (9) and surperficial 304 stainless steel barses with thin layer clad H70 brass, under the pressure cooling effect of the water mold (9) of 18 DEG C of cooling water flow 800L/h, cooling water temperature, not solidified clad H70 brass melt occurs to solidify completely, the compound bar of brass bag stainless steel that formation interface is metallurgical binding; The compound bar of brass bag stainless steel of preparation is further cooled when through secondary cooling apparatus (10); Under effect at haulage gear (11) with casting speed 90mm/min, realize core and be 304 stainless steel barses of diameter 8mm, the continuous casting of the compound bar of brass bag stainless steel that clad H70 brass thickness is 1mm is shaped.
Embodiment 6:
Core is that the Cu/Q235 composite bar of diameter 17mm, the tin bag Cu/Q235 composite bar continuous casting that clad pure tin thickness is 0.5mm are shaped.
Under argon shield condition, by heater (6), the clad pure tin melt in crucible (5) is heated and is incubated to 280 DEG C; In continuous casting forming process, in core protective device (3), be filled with continuously argon gas; Start haulage gear (11), make Cu/Q235 composite bar start to move towards dummy ingot direction through core guiding and positioning device (2) and core protective device (3), mozzle (7) position is left in the side of dummy bar (13) head end simultaneously; Clad pure tin melt in crucible (5) enters reverse solidification device (9) from crucible (5) bottom sides inflow mozzle (7) subsequently, by the clad pure tin melt of high temperature and Cu/Q235 composite bar the contacting in reverse solidification device (9) of not preheating, there is the pressure reverse solidification of moment, realize clad pure tin melt and solidify at the thin layer on Cu/Q235 composite bar surface; And then not solidified clad pure tin melt enters in the gap between water mold (9) and the surperficial core Cu/Q235 composite bar with thin layer clad pure tin, under the pressure cooling effect of the water mold (9) of 20 DEG C of cooling water flow 1000L/h, cooling water temperature, not solidified clad pure tin melt occurs to solidify completely, the tin bag Cu/Q235 composite bar that formation interface is metallurgical binding; The tin bag Cu/Q235 composite bar of preparation is further cooled when through secondary cooling apparatus (10); Under effect at haulage gear (11) with casting speed 90mm/min, realize core and be the Cu/Q235 composite bar of diameter 17mm, the continuous casting of tin bag Cu/Q235 composite bar that clad pure tin thickness is 0.5mm is shaped.
Claims (10)
1. a clad material solid-liquid composite continuous casting former, it is characterized in that, formed by core guiding and positioning device (2), core protective device (3), crucible (5), heater (6), mozzle (7), reverse solidification device (8), water mold (9), secondary cooling apparatus (10), haulage gear (11), dummy bar (13), core guiding and positioning device (2), core protective device (3), reverse solidification device (8), water mold (9), secondary cooling apparatus (10) and haulage gear (11) are disposed on same axis successively along dummy ingot direction, core guiding and positioning device (2) is driven member, be arranged on the rear end of core protective device (3) along dummy ingot direction, play the effect of accurate centering location and guiding constraint core (1), under the drive of haulage gear (11), realize core (1) is carried continuously through core protective device (3), reverse solidification device (8), water mold (9) and secondary cooling apparatus (10), the movement velocity of core guiding and positioning device (2) is subject to the restriction of driving link haulage gear (11), core protective device (3) is to playing sealing, anti-oxidation and centering positioning action by its inner core (1), the clad metal bath (4) in reverse solidification device (8) carried out to side seal and overflow avoiding, crucible (5) is installed on the side of mozzle (7), and the axis of crucible (5) is vertical with the axis of mozzle (7), for splendid attire clad metal bath (4), heater (6) is installed on crucible (5) around or embeds in crucible (5) wall or be wrapped in crucible (5) outer surface, for crucible (5) and clad metal bath (4) are heated and insulation, mozzle (7) is installed on the side of crucible (5), the axis of mozzle (7) is vertical with the axis of crucible (5), mozzle arrival end is connected with crucible (5) side outer surface, the port of export is connected with reverse solidification device (8), and the clad metal bath (4) in crucible (5) enters in reverse solidification device (8) and water mold (9) by mozzle (7), reverse solidification device (8) is close to core protective device (3) outlet, the axis of reverse solidification device (8) is vertical with the axis of mozzle (7), make clad metal bath (4) occur to force reverse solidification on the surface of preheating core (1) not, realize clad metal bath (4) and solidify at the thin layer on core (1) surface, water mold (9) is closely connected with reverse solidification device (8), ensures that the clad metal bath (4) that enters water mold (9) from reverse solidification device (8) realizes quick forward and solidify, secondary cooling apparatus (10) is positioned between water mold (9) and haulage gear (11), realizes further cooling to clad material (12), haulage gear (11) is arranged on secondary cooling apparatus (10) afterwards, for realizing pulling straight clad material (12), dummy bar (13) head end is connected with core (1) is anterior, be positioned in reverse solidification device (8), core protective device (3) outlet is close at the top of dummy bar (13) head end, mozzle (7) outlet is close in the side of dummy bar (13) head end, before starting, plays continuous casting the effect of blocking in clad metal bath (4) inflow reverse solidification device (8), when just having started, blocks continuous casting the outlet of water mold (9), make clad metal bath (4) compound with core (1) in reverse solidification device (8) and water mold (9), then constantly pull-out under the effect of haulage gear (11), the continuous casting of realizing clad material (12) is shaped.
2. a kind of clad material solid-liquid composite continuous casting former as claimed in claim 1, is characterized in that, described crucible (5) replaces with tundish; On near the basis of the described secondary cooling apparatus (10) arranging described water mold (9) outlet, again implement cooling.
3. a kind of clad material solid-liquid composite continuous casting former as claimed in claim 1, is characterized in that, described core protective device (3) adopts graphite, pottery or metal to make; Described heater (6) adopts external heat source or induction heater.
4. a kind of clad material solid-liquid composite continuous casting former as claimed in claim 1, it is characterized in that, secondary mozzle is installed in described crucible (5) side, and its arrival end is connected with described crucible (5) side outer surface, and the port of export is connected with described water mold (9).
5. a kind of clad material solid-liquid composite continuous casting former as claimed in claim 1, is characterized in that, described crucible (5) is positioned in the environment of air or vacuum or nitrogen or inert gas or reducibility gas protection; Whole continuous casting forming process adopts Artificial Control or computer control; Continuous cast method is any in top-guiding type, pull-down, horizontal, arc form or tilting.
6. one kind adopts the clad material solid-liquid composite continuous casting manufacturing process of a kind of clad material solid-liquid composite continuous casting former claimed in claim 1, it is characterized in that, preparation technology is: under air, vacuum or nitrogen or inert gas or reducibility gas protective condition, by heater (6), the clad metal bath (4) in crucible (5) is heated and is incubated; Start haulage gear (11), make core (1) start to move towards dummy ingot direction through core guiding and positioning device (2) and core protective device (3), mozzle (7) position is left in the side of dummy bar (13) head end simultaneously; Clad metal bath (4) in crucible (5) enters reverse solidification device (8) from crucible (5) bottom sides inflow mozzle (7) subsequently, by the clad metal bath (4) of high temperature and core (1) the contacting in reverse solidification device (8) of not preheating, there is the pressure reverse solidification of moment, realize clad metal bath (4) and solidify at the thin layer on core (1) surface; Not solidified clad metal bath (4) and then enters in the gap between water mold (9) and the surperficial core (1) with thin layer clad metal, under the pressure cooling effect of water mold (9), not solidified clad metal bath (4) occurs to solidify completely, the clad material (12) that formation interface is metallurgical binding; The clad material (12) of preparation is further cooled when through secondary cooling apparatus (10); Under the effect of haulage gear (11), the continuous casting of realizing clad material (12) is shaped; The required cooling velocity of clad metal is controlled by casting speed, the intensity of cooling of water mold (9) and the heating-up temperature of heater (6) of haulage gear (11).
7. a kind of clad material solid-liquid composite continuous casting manufacturing process as claimed in claim 6, is characterized in that, in described core protective device (3), is filled with nitrogen, inert gas or reducibility gas.
8. a kind of clad material solid-liquid composite continuous casting manufacturing process as claimed in claim 6, is characterized in that, described core (1) is at least one in metal wire rod, bar, tubing, sheet material or section bar, and quantity is one or is no less than two; Described clad material (12) is cladding wires, bar, tubing, sheet material or section bar.
9. a kind of clad material solid-liquid composite continuous casting manufacturing process as claimed in claim 6, it is characterized in that, in the time that described core (1) is metal pipe material or hollow metal section bar, seal described core (1) two ends and vacuumize, or in metal pipe material or hollow metal section bar, being filled with continuously nitrogen or inert gas or reducibility gas in continuous casting forming process.
10. a kind of clad material solid-liquid composite continuous casting manufacturing process as claimed in claim 6, is characterized in that, described metal is simple metal, alloy or metallic composite.
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| CN104575868A (en) * | 2015-01-07 | 2015-04-29 | 云南通变电磁线有限公司 | Seamless copper-clad aluminum rod production device |
| CN106111922A (en) * | 2016-06-28 | 2016-11-16 | 北京科技大学 | A kind of copper-coated aluminium composite material high efficiency continuous casting former and technique |
| CN106111931A (en) * | 2016-06-28 | 2016-11-16 | 北京科技大学 | A kind of metal clad material solid-liquid continuous casting composite forming apparatus and process |
| CN107262696A (en) * | 2017-02-28 | 2017-10-20 | 孙劲腾 | A kind of interface fusion process prepares the method and device of metal composite pipe |
| CN108273980A (en) * | 2018-04-04 | 2018-07-13 | 安徽工业大学 | A kind of preheating consutrode electroslag remelting production composite roll method |
| CN109365763A (en) * | 2018-12-12 | 2019-02-22 | 吴绍强 | Heat plasma casting repaired roller device and method |
| CN109894590A (en) * | 2019-03-28 | 2019-06-18 | 北京科技大学 | A kind of continuous casting installation for casting and method of major diameter copper alloy tube |
| CN111136230A (en) * | 2020-02-05 | 2020-05-12 | 曾春燕 | Processing system and processing method of copper-clad aluminum wire |
| CN113564553A (en) * | 2021-08-06 | 2021-10-29 | 昆山祁御新材料科技有限公司 | Manufacturing process and equipment of rotary target material |
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| CN109365763B (en) * | 2018-12-12 | 2020-08-04 | 吴绍强 | Thermal plasma casting repair roller equipment and method |
| CN109894590A (en) * | 2019-03-28 | 2019-06-18 | 北京科技大学 | A kind of continuous casting installation for casting and method of major diameter copper alloy tube |
| CN111136230A (en) * | 2020-02-05 | 2020-05-12 | 曾春燕 | Processing system and processing method of copper-clad aluminum wire |
| CN111136230B (en) * | 2020-02-05 | 2021-11-23 | 惠州市登高达电业有限公司 | Processing system and processing method of copper-clad aluminum wire |
| CN113564553A (en) * | 2021-08-06 | 2021-10-29 | 昆山祁御新材料科技有限公司 | Manufacturing process and equipment of rotary target material |
| CN114309500A (en) * | 2021-12-28 | 2022-04-12 | 北京科技大学 | Multi-strand continuous casting composite forming process |
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