CN104174823B - A kind of clad material solid-liquid composite continuous casting former and method - Google Patents
A kind of clad material solid-liquid composite continuous casting former and method Download PDFInfo
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- CN104174823B CN104174823B CN201410440799.6A CN201410440799A CN104174823B CN 104174823 B CN104174823 B CN 104174823B CN 201410440799 A CN201410440799 A CN 201410440799A CN 104174823 B CN104174823 B CN 104174823B
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Abstract
A kind of clad material solid-liquid composite continuous casting former and method, belong to clad material continuous casting technology field.The present invention is installed on crucible side by taking core protective device, mozzle, reverse solidification device etc.; do not heat core in advance; design low capacity reverse solidification device; avoid core for a long time through clad metal bath; melt relies on deadweight to flow out from crucible bottom side; the measures such as the size of Effective Regulation reverse solidification device and water mold, the high-quality clad material of continuous casting shaping required form size.Be suitable for clad melting point metal to be shaped lower than the large scale clad material continuous casting being difficult to batch of core melting point metal.Present device structure is simple, part replacement easy, convenient operating maintenance, rational and compact, production efficiency are high, small investment, easily realization automatically control, are convenient to large-scale industrial production, forming process flow process is short, energy-conserving and environment-protective, efficient, low cost, the combination free degree of clad metal and core metal is large, and prepared clad material quality and performance is good.
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 comprehensive serviceability is excellent, and considerably 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 surfaces plating method (as galvanoplastic, electroless plating method, displacement plating method etc.), solid phase composite algorithm (as tube-weld cladding technique, jacket plastic working composite algorithm) and composite casting.First two method has played certain positive role in the shaping of clad material, is also applied in the production of some clad materials; But these two kinds of methods also also exist separately significantly shortcoming.Such as, some method environmental pollutions are comparatively 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 seepage, production efficiency is low, compound interface is second-rate, clad metal thickness is limited and cladding ratio be difficult to accurate control, clad material quality and performance unstable, production cost is high.And based on the clad material composite casting of metal bath, not only there is the remarkable advantage such as short route, nearly end form, high efficiency, low cost, environmental protection, applied range, and easily realize the serialization of clad material, automation and mass production, be a kind of mainstream technology and the important development trend of clad material shaping, it is researched and developed and applies and day by day comes into one's own.
The continuous composite casting of clad material at present based on metal bath can be divided into two large classes, one class is the composite casting (as double-current casting, horizontal magnetic field braking composite continuous casting method) that employing two kinds of metal baths carry out direct combination shaping, the another kind of composite casting (as reverse solidification method, hot dipping method) for adopting clad metal bath the solid core be shaped to be carried out to continuous coated shaping.Last class methods are two kinds of metal baths due to what adopt, also exist two kinds of metal baths in interface the unmanageable mixing of easy occurrence degree or excessive compound, also very easily intermetallic compound is generated, easily occur that interfacial layer thickness is uneven, 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 Automated condtrol require very high, particularly correct control and Proper Match technological parameter, two kinds of metal interfaces are made to combine good and interface stability is more difficult, and investment is large, required energy consumption is high, the combination free degree of metal is also limited significantly, therefore seriously constrain it to apply.Rear class methods are owing to have employed the solid core be shaped, therefore many shortcomings of last class methods are overcome, the difficulty of equipment, technique and control also reduces greatly, to be shaped the main method adopted so these class methods become current clad material composite casting, in the production of some clad materials, to obtain practical application; But these class methods existing also also exist respective deficiency.
Such as, reverse solidification method is through clad metal bath core (being generally sheet metal strip), clad metal bath is attached to core surfaces and solidifies, the two forms metallurgical binding in interface, and along with the continuous movement of core, the clad metal thickness that core surfaces solidifies progressively increases, until completely by clad metal bath, then by a pair roller, clad material formed thereby is rolled, reach flat surface, control the object of clad material thickness, a kind of process of clad material needed for final acquisition, be mainly used in the progressive forming of coated band.Reverse solidification is that clad metal bath is solidified on its surface by the heat conduction of core, does not have the cooled and solidified effect of the crystallizer of traditional continuous casting, therefore reverse solidification equipment does not also install crystallizer.When adopting traditional reverse solidification method shaping clad material, be immersed in clad metal bath for a long time except there is core, core is easily melted outside problem that is too much or that fuse, also there is clad metal thickness and be difficult to stability contorting, preparation technology parameter correctly control and Proper Match more difficult, interface diffusion layer thickness and interface quality (as easily generated intermetallic compound etc.) are difficult to control, the problems such as clad metal surface is second-rate.Hot dipping method is that the core of preheating (being generally metal wire rod) is immersed in clad metal bath, to make between core and clad metal by dissolving, the mode such as chemical reaction and diffusion forms metallurgical binding transition zone at interface, when core proposes from clad metal bath, clad metal is become through cooled and solidified at the clad metal bath of transition zone surface attachment, thus obtain a kind of process of required clad material, be mainly used in the progressive forming of cladding wires.Equally, hot-dip coating installation does not also install crystallizer.When adopting hot dipping method shaping clad material, core needs 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 interface diffusion layer thickness of clad material, interface quality (as easily generated 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 is complicated simultaneously, investment is large, technical difficulty is large, and production cost is high.Some otherly just at developing employing clad metal bath, the composite casting of continuous coated shaping is carried out (as horizontal casting cladding process to the solid core be shaped, under draw continuous casting cladding process, end form casting cladding process) also there is various problem, mainly comprise core will to be heated in advance, flow process is longer, core is anti-oxidation to have high input, required auxiliary facility is many, equipment is complicated, complex operation, energy consumption is large, production cost is high, or core needs through always by the clad metal bath heated, core surfaces 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 also all there is a common shortcoming to the composite casting that the solid core be shaped carries out continuous coated shaping in above-mentioned existing employing clad metal bath, the continuous casting that namely cannot realize the large scale clad material being difficult to batch is shaped.
Therefore; be badly in need of a kind of clad metal bath that adopts of exploitation and novel device and the method for continuous coated shaping is carried out to the solid core be shaped; avoid or reduce core and core protective device etc. to the pollution of clad metal bath and the impact of clad material quality; short route, 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 the large scale clad material being difficult to batch especially is shaped.
Summary of the invention
Reverse solidification principle is introduced by the present invention, combine with the forward solidifying continuously casting Forming Theory of metal bath in crystallizer, 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 core in advance, design low capacity reverse solidification device, avoid core from being passed by the clad metal bath that heats always, make clad metal bath rely on self gravitation to flow through mozzle from crucible bottom side horizontal and enter the reverse solidification device and 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 route, 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 core and core protective device etc. to the pollution of clad metal bath 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 being 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 configured on same axis along dummy ingot direction successively; 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 precise alignment location and guiding constraint core, under the drive of haulage gear, realize by core continus convergence 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 plays sealing, anti-oxidation and centering positioning action to the core by its inside, carries out side seal to avoid overflowing to the clad metal bath in reverse solidification device; Crucible is installed on the side of mozzle, the axis of crucible and the axes normal of mozzle, for splendid attire clad metal bath; Heater is installed on around crucible or embeds in sidewall of crucible or be wrapped in crucible outer surface, for carrying out heating to crucible and clad metal bath and being incubated; Mozzle is installed on the side of crucible, the axis of mozzle and the axes normal of crucible, its arrival end is connected with crucible side exterior 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; The outlet of core protective device is close to by reverse solidification device, the axis of reverse solidification device and the axes normal of mozzle, makes clad metal bath occur to force reverse solidification at non-preheating core surfaces, realizes clad metal bath and solidify at the thin layer of core surfaces; Water mold is closely connected with reverse solidification device, the clad metal bath ensureing to enter water mold from reverse solidification device realizes quick forward and solidifies, suppress the interface of having solidified clad metal and core before leaving water mold, continue the generation intermetallic compound that reacts, 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, realizes 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 front portion; 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; the effect of blocking in clad metal bath inflow reverse solidification device is played before continuous casting starts; the outlet of water mold is blocked when continuous casting just starts; make clad metal bath in reverse solidification device and water mold with core compound; then constantly pull out under the effect of haulage gear, the continuous casting 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 carry out continuous seepage; Cooling is implemented on the basis of the described secondary cooling apparatus that can arrange near described water mold outlet again.
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, in described crucible side, secondary mozzle is installed, its arrival end is connected with described crucible side exterior surface, the port of export is connected with described water mold, part clad metal bath can not flow through described mozzle, directly flows through secondary mozzle from described crucible and enters described water mold.
Described a kind of clad material solid-liquid composite continuous casting former is positioned over by described crucible 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 to control; Continuous cast method can be any one in top-guiding type, pull-down, horizontal, arc form or tilting.
A kind of clad material solid-liquid composite continuous casting manufacturing process, it is characterized in that, preparation technology is: under air, vacuum or nitrogen or inert gas or reducibility gas protective condition, is heated by heater and is incubated the clad metal bath in crucible; 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 subsequently in crucible flows into mozzle and enters reverse solidification device from crucible bottom side, by the clad metal bath of high temperature and the contact of core in reverse solidification device of non-preheating, there is the pressure reverse solidification of moment, realize clad metal bath and solidify at the thin layer of core surfaces; And then not solidified clad metal bath enters in the gap between core that water mold and surface have a thin layer clad metal, under the pressure cooling effect of water mold, not solidified clad metal bath occurs to solidify completely, and forming interface is the clad material of metallurgical binding; The clad material of preparation is being further cooled through secondary cooling apparatus; Under the effect of haulage gear, the continuous casting realizing clad material is shaped.Cooling velocity needed for clad metal is controlled by the heating-up temperature of the casting speed of haulage gear, the intensity of cooling of water mold and heater.
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, and quantity can be one or be no less than two.
Described a kind of clad material solid-liquid composite continuous casting manufacturing process, when core be metal pipe material or hollow metal section bar time, close core two ends also to vacuumize, or in metal pipe material or hollow metal section bar, in continuous casting forming process, be filled with nitrogen or inert gas or reducibility gas continuously.
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:
1. high, the highly versatile of simple, the economize energy of clad material solid-liquid composite continuous casting former structure, flexibility, 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 the need to the spooler of complexity 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 reverse solidification very soon, core is not through crucible simultaneously, avoid conventional counter solidify middle core through crucible time contact with the clad metal bath long period superheated caused, corrode even core is fused completely, without the need to considering the extra anti-oxidation technology problem caused therefrom, also reduce or avoid the generation of clad material interface intermetallic compound and core metallic element diffuses into the problem polluted in crucible internal coating metal bath, the high-quality being conducive to the reverse solidification stage forces reverse solidification to be shaped, the Compound Degree of easy control clad metal and core metal, production efficiency and clad metal, the quality of compound interface and clad material increases substantially, and avoid the technological parameter fluctuations such as clad metal bath heating-up temperature to the impact of clad metal thickness and clad material interface quality etc.
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 the effect of blocking in clad metal bath inflow reverse solidification device, simple, control reliable, easy to operate, eliminate the complexity and triviality that adopt other plugging mechanism in design, installation and use etc., it also avoid plugging mechanism likely to the pollution problem that clad metal bath causes.
4. clad material solid-liquid composite continuous casting former adopts water mold external separately, and be easy to realize rapid solidification, the interface element decreasing clad material too much spreads, and reduces or avoids the generation of intermetallic compound, improve production efficiency simultaneously; Clad metal bath relies on self gravitation to flow into mozzle from crucible bottom side, without the need to the liquid level control device of solid or gas pressure, reduces cost, decreases pollution; Clad metal bath flows into mozzle from crucible bottom side, impurity in clad metal bath, gas and waste residue are then upwards got rid of or are floated on the clad metal bath surface in crucible, can not enter in mozzle, therefore ensure that the purity of clad metal bath in mozzle, improve 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 the need to considering, heat insulation process is carried out to core; eliminate the pollution of core protective device to clad metal bath, avoid core protective device and core heat-barrier material material is selected and the challenge such as mechanism design and manufacture.
6. the core that clad material solid-liquid composite continuous casting manufacturing process adopts is room temperature state, drying oven or heating furnace is not utilized to carry out drying under certain high temperature or preheating to it in advance, save the energy, simplify equipment, shorten flow process, particularly avoid and heated the core surfaces anti-oxidation control that mistake is polyoxygenated or needs are too strict before entering clad metal bath, prevent and heat core and enter clad metal bath local rapid solution or chemical reaction occurs, reduce or avoid the generation of excessive corrode and intermetallic compound, be conducive to obtaining the high and smooth compound interface of bond strength, improve the quality of interface quality between core and clad metal and clad material.
7. the combination free degree of clad metal and core metal that adopts of clad material solid-liquid composite continuous casting manufacturing process is large, even the two kinds of metals being easy to generation intermetallic compound also can normally be shaped; And the profile of core and clad material and change in size scope are large, are 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 prepare the thinner clad material of clad metal thickness, and can when keeping reverse solidification device low capacity, clad metal thickness is controlled by the gap width between adjustment water mold and core, by secondary mozzle extra providing package coating metal melt, prepare the clad material that clad metal thickness is large, realize regulation and control clad metal thickness effectively arbitrarily, prepare the clad material that clad metal thickness excursion is large, expand the description of clad material.
9. clad material solid-liquid composite continuous casting manufacturing process has the features such as short route, 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 stablize, 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 being difficult to batch of clad melting point metal and the continuous casting of high-performance clad material.
Accompanying drawing explanation
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; what be necessary to herein means out is that the present embodiment is only used to further illustrate the present invention; limiting the scope of the invention can not be interpreted as; every any nonessential improvement of doing following examples according to the technology of the present invention essence and adjustment, all still belong 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 configured on same axis along dummy ingot direction successively, 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 precise alignment location and guiding constraint core (1), under the drive of haulage gear (11), realize by core (1) continus convergence 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) plays sealing, anti-oxidation and centering positioning action to the core (1) by its inside, carries out side seal to avoid overflowing to the clad metal bath (4) in reverse solidification device (8), crucible (5) is installed on the side of mozzle (7), and the axis of crucible (5) and the axes normal of mozzle (7), for splendid attire clad metal bath (4), heater (6) is installed on around crucible (5) or embeds in crucible (5) wall or be wrapped in crucible (5) outer surface, for carrying out heating to crucible (5) and clad metal bath (4) and being incubated, mozzle (7) is installed on the side of crucible (5), the axis of mozzle (7) and the axes normal of crucible (5), its arrival end is connected with crucible (5) side exterior 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), core protective device (3) outlet is close to by reverse solidification device (8), the axis of reverse solidification device (8) and the axes normal of mozzle (7), make clad metal bath (4) occur to force reverse solidification on non-preheating core (1) surface, 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), the clad metal bath (4) ensureing to enter water mold (9) from reverse solidification device (8) realizes quick forward and solidifies, water mold (9) is front continues the generation intermetallic compound that reacts leaving in the interface suppressing to have solidified clad metal and core (1), 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), after haulage gear (11) is arranged on secondary cooling apparatus (10), for realizing pulling straight clad material (12), dummy bar (13) head end is connected with core (1) front portion, 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, the effect of blocking in clad metal bath (4) inflow reverse solidification device (8) is played before continuous casting starts, the outlet of water mold (9) is blocked when continuous casting just starts, make clad metal bath (4) in reverse solidification device (8) and water mold (9) and core (1) compound, then constantly pull out under the effect of haulage gear (11), the continuous casting 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 carry out continuous seepage; Cooling is implemented on the basis of the described secondary cooling apparatus (10) that can arrange near described water mold (9) outlet again.
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, in described crucible (5) side, secondary mozzle is installed, its arrival end is connected with described crucible (5) side exterior surface, the port of export is connected with described water mold (9), part clad metal bath (4) can not flow through described mozzle (7), directly flows through secondary mozzle from described crucible (5) and enters described water mold (9).
Described a kind of clad material solid-liquid composite continuous casting former is positioned over by described crucible (5) 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 to control; Continuous cast method can be any one in top-guiding type, pull-down, horizontal, arc form or tilting.
Embodiment 1:
The copper covered steel composite bar continuous casting shaping that the Q235 Steel Bar that core is diameter 15mm, clad fine copper thickness are 1mm.
Under air conditions, by heater (6) the clad fine copper melt in crucible (5) heated and be incubated to 1200 DEG C; In core protective device (3), nitrogen is filled with continuously in continuous casting forming process; 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 subsequently in crucible (5) flows into mozzle (7) from crucible (5) bottom sides and enters reverse solidification device (9), by the clad fine copper melt of high temperature and the contact of Q235 Steel Bar in reverse solidification device (9) of non-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 Q235 Steel Bar that water mold (9) and surface have a thin layer clad fine copper, under the pressure cooling effect of the water mold (9) of cooling water flow 1300L/h, cooling water temperature 20 DEG C, not solidified clad fine copper melt occurs to solidify completely, forms the copper covered steel composite bar that interface is metallurgical binding; The copper covered steel composite bar of preparation is being further cooled when secondary cooling apparatus (10); At haulage gear (11) with under the effect of casting speed 120mm/min, realize Q235 Steel Bar that core is diameter 15mm, continuous casting that clad fine copper thickness is the copper covered steel composite bar of 1mm is shaped.
Embodiment 2:
The silver-colored copper-clad composite wire continuous casting shaping that the pure copper wires that core is diameter 2mm, clad fine silver thickness are 0.2mm.
Under argon shield condition, by heater (6) the clad fine silver melt in crucible (5) heated and be incubated to 1050 DEG C; In core protective device (3), argon gas is filled with continuously in continuous casting forming process; 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 subsequently in crucible (5) flows into mozzle (7) from crucible (5) bottom sides and enters reverse solidification device (9), by the clad fine silver melt of high temperature and the contact of pure copper wires in reverse solidification device (9) of non-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 pure copper wires that water mold (9) and surface have a thin layer clad fine silver, under the pressure cooling effect of the water mold (9) of cooling water flow 1100L/h, cooling water temperature 20 DEG C, not solidified clad fine silver melt occurs to solidify completely, forms the silver-colored copper-clad composite wire that interface is metallurgical binding; The silver-colored copper-clad composite wire of preparation is being further cooled when secondary cooling apparatus (10); At haulage gear (11) with under the effect of casting speed 100mm/min, realize pure copper wires that core is diameter 2mm, continuous casting that clad fine silver thickness is the silver-colored copper-clad composite wire of 0.2mm is shaped.
Embodiment 3:
The copper-clad composite ti pipe material continuous casting that core is diameter 6mm, the C.P.Ti tube of wall thickness 1mm and clad fine copper thickness are 1mm is shaped.
Under argon shield condition, by heater (6) the clad fine copper melt in crucible (5) heated and be incubated to 1150 DEG C; In core protective device (3) and C.P.Ti tube, argon gas is filled with continuously respectively in continuous casting forming process; 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 subsequently in crucible (5) flows into mozzle (7) from crucible (5) bottom sides and enters reverse solidification device (9), by the clad fine copper melt of high temperature and the contact of C.P.Ti tube in reverse solidification device (9) of non-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 C.P.Ti tube that water mold (9) and surface have a thin layer clad fine copper, under the pressure cooling effect of the water mold (9) of cooling water flow 1000L/h, cooling water temperature 20 DEG C, not solidified clad fine copper melt occurs to solidify completely, forms the copper-clad composite ti pipe material that interface is metallurgical binding; The copper-clad composite ti pipe material of preparation is being further cooled when secondary cooling apparatus (10); At haulage gear (11) with under the effect of casting speed 120mm/min, realize that core is diameter 6mm, continuous casting that the C.P.Ti tube of wall thickness 1mm and clad fine copper thickness are the copper-clad composite ti pipe material of 1mm is shaped.
Embodiment 4:
The copper covered steel composite board continuous casting shaping that the Q235 carbon sheet that core is thickness 10mm, clad fine copper thickness are 1mm.
Under argon shield condition, by heater (6) the clad fine copper melt in crucible (5) heated and be incubated to 1150 DEG C; In core protective device (3), argon gas is filled with continuously in continuous casting forming process; 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 subsequently in crucible (5) flows into mozzle (7) from crucible (5) bottom sides and enters reverse solidification device (9), by the clad fine copper melt of high temperature and the contact of Q235 carbon sheet in reverse solidification device (9) of non-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 Q235 carbon sheet that water mold (9) and surface have a thin layer clad fine copper, under the pressure cooling effect of the water mold (9) of cooling water flow 1200L/h, cooling water temperature 22 DEG C, not solidified clad fine copper melt occurs to solidify completely, forms the copper covered steel composite board that interface is metallurgical binding; The copper covered steel composite board of preparation is being further cooled when secondary cooling apparatus (10); At haulage gear (11) with under the effect of casting speed 100mm/min, realize Q235 carbon sheet that core is thickness 10mm, continuous casting that clad fine copper thickness is the copper covered steel composite board of 1mm is shaped.
Embodiment 5:
The brass bag stainless steel composite bar continuous casting shaping that 304 stainless steel barses that core is diameter 8mm, clad H70 brass thickness are 1mm.
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 core protective device (3), argon gas is filled with continuously in continuous casting forming process; 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 subsequently in crucible (5) flows into mozzle (7) from crucible (5) bottom sides and enters reverse solidification device (9), by the clad H70 brass melt of high temperature and the contact of 304 stainless steel barses in reverse solidification device (9) of non-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 304 stainless steel barses that water mold (9) and surface have thin layer clad H70 brass, under the pressure cooling effect of the water mold (9) of cooling water flow 800L/h, cooling water temperature 18 DEG C, not solidified clad H70 brass melt occurs to solidify completely, forms the brass bag stainless steel composite bar that interface is metallurgical binding; The brass bag stainless steel composite bar of preparation is being further cooled when secondary cooling apparatus (10); At haulage gear (11) with under the effect of casting speed 90mm/min, realize 304 stainless steel barses that core is diameter 8mm, continuous casting that clad H70 brass thickness is the brass bag stainless steel composite bar of 1mm is shaped.
Embodiment 6:
The tin bag Cu/Q235 composite bar continuous casting shaping that the Cu/Q235 composite bar that core is diameter 17mm, clad pure tin thickness are 0.5mm.
Under argon shield condition, by heater (6) the clad pure tin melt in crucible (5) heated and be incubated to 280 DEG C; In core protective device (3), argon gas is filled with continuously in continuous casting forming process; 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 subsequently in crucible (5) flows into mozzle (7) from crucible (5) bottom sides and enters reverse solidification device (9), by the clad pure tin melt of high temperature and the contact of Cu/Q235 composite bar in reverse solidification device (9) of non-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 core Cu/Q235 composite bar that water mold (9) and surface have a thin layer clad pure tin, under the pressure cooling effect of the water mold (9) of cooling water flow 1000L/h, cooling water temperature 20 DEG C, not solidified clad pure tin melt occurs to solidify completely, forms the tin bag Cu/Q235 composite bar that interface is metallurgical binding; The tin bag Cu/Q235 composite bar of preparation is being further cooled when secondary cooling apparatus (10); At haulage gear (11) with under the effect of casting speed 90mm/min, realize Cu/Q235 composite bar that core is diameter 17mm, continuous casting that clad pure tin thickness is the tin bag Cu/Q235 composite bar of 0.5mm is shaped.
Claims (10)
1. a clad material solid-liquid composite continuous casting former, it is characterized in that, be 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), 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 configured on same axis along dummy ingot direction successively, 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 precise alignment location and guiding constraint core (1), under the drive of haulage gear (11), realize by core (1) continus convergence 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 haulage gear (11), core protective device (3) plays sealing, anti-oxidation and centering positioning action to the core (1) by its inside, carries out side seal to avoid overflowing to the clad metal bath (4) in reverse solidification device (8), crucible (5) is installed on the side of mozzle (7), and the axis of crucible (5) and the axes normal of mozzle (7), for splendid attire clad metal bath (4), heater (6) embeds in crucible (5) wall or is wrapped in crucible (5) outer surface, for carrying out heating to crucible (5) and clad metal bath (4) and being incubated, mozzle arrival end is connected with crucible (5) side exterior 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), core protective device (3) outlet is close to by reverse solidification device (8), the axis of reverse solidification device (8) and the axes normal of mozzle (7), make clad metal bath (4) occur to force reverse solidification on non-preheating core (1) surface, 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), and the clad metal bath (4) ensureing to enter water mold (9) from reverse solidification device (8) realizes quick forward and solidifies, secondary cooling apparatus (10) is positioned between water mold (9) and haulage gear (11), realizes further cooling to clad material (12), after haulage gear (11) is arranged on secondary cooling apparatus (10), for realizing pulling straight clad material (12), dummy bar (13) head end is connected with core (1) front portion, 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, the effect of blocking in clad metal bath (4) inflow reverse solidification device (8) is played before continuous casting starts, the outlet of water mold (9) is blocked when continuous casting just starts, make clad metal bath (4) in reverse solidification device (8) and water mold (9) and core (1) compound, then constantly pull out under the effect of haulage gear (11), the continuous casting realizing clad material (12) is shaped.
2. a kind of clad material solid-liquid composite continuous casting former as claimed in claim 1, it is characterized in that, described crucible (5) replaces with tundish; Cooling is implemented on the basis of the described secondary cooling apparatus (10) arranged near described water mold (9) outlet again.
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, in described crucible (5) side, secondary mozzle is installed, its arrival end is connected with described crucible (5) side exterior 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, is positioned over by described crucible (5) 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 to control; Continuous cast method is any one 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 according to claim 1, it is characterized in that, preparation technology is: under air, vacuum or nitrogen or inert gas or reducibility gas protective condition, is heated by heater (6) and is incubated the clad metal bath (4) in crucible (5); 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) subsequently in crucible (5) flows into mozzle (7) from crucible (5) bottom sides and enters reverse solidification device (8), by the clad metal bath (4) of high temperature and the contact of core (1) in reverse solidification device (8) of non-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), the generation of not solidified clad metal bath (4) is solidified completely, forms the clad material (12) that interface is metallurgical binding; The clad material (12) of preparation is being further cooled when secondary cooling apparatus (10); Under the effect of haulage gear (11), the continuous casting realizing clad material (12) is shaped, and the cooling velocity needed for clad metal is controlled by the heating-up temperature of the casting speed of haulage gear (11), the intensity of cooling of water mold (9) and heater (6).
7. a kind of clad material solid-liquid composite continuous casting manufacturing process as claimed in claim 6, is characterized in that, be filled with nitrogen, inert gas or reducibility gas in described core protective device (3).
8. a kind of clad material solid-liquid composite continuous casting manufacturing process as claimed in claim 6, it is characterized in that, described core (1) is at least one in metal wire rod, bar, tubing or sheet material, and quantity is one or is no less than two; Described clad material (12) is cladding wires, bar, tubing, sheet material.
9. a kind of clad material solid-liquid composite continuous casting manufacturing process as claimed in claim 6, it is characterized in that, when described core (1) is for hollow metal section bar, close described core (1) two ends also to vacuumize, or in hollow metal section bar, in continuous casting forming process, be filled with nitrogen or inert gas or reducibility gas continuously.
10. a kind of clad material solid-liquid composite continuous casting manufacturing process as claimed in claim 6, it is characterized in that, described metal is simple metal, alloy or metallic composite.
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| CN201410440799.6A CN104174823B (en) | 2014-09-01 | 2014-09-01 | A kind of clad material solid-liquid composite continuous casting former and method |
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| CN201410440799.6A CN104174823B (en) | 2014-09-01 | 2014-09-01 | A kind of clad material solid-liquid composite continuous casting former and method |
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| 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 |
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