CN103495618B - The rolling casting bonding process units of composite metal plate and method - Google Patents
The rolling casting bonding process units of composite metal plate and method Download PDFInfo
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Abstract
The rolling casting bonding process units of a kind of composite metal plate designed by the present invention and method, the present invention is by mother metal to be composite, by mother metal uncoiler, guide roller, entering from top to bottom in the molten bath of strip caster, is the metal liquid of layer to be composite in molten bath, because the temperature of mother metal is lower than the temperature of layer metal liquid to be composite, liquid at mother metal surface crystallization, can be equivalent to or immersion; Meanwhile, due to crystallization roll water flowing cooling, metal liquid also can in the contact zone crystallization with crystallization roll, and when mother metal arrives the previous anastomotic of crystallization roll, the thin metal layer of crystallization on roll surface is pressed on the crystallizing layer of mother metal by crystallization roll, forms composite board; Composite board leaves previous anastomotic and enters secondary cooling zone, by leveling roll, composite plate is cooled further, and enters mill milling, finally batch rolling.This invention simplifies production process, shorten the production cycle, equipment investment is corresponding minimizing also, and product cost significantly reduces.
Description
Technical field
The present invention relates to steel processing and manufacturing technology field, refer to a kind of rolling casting bonding process units and method of composite metal plate particularly.
Technical background
Along with the develop rapidly of modern science and technology and national economy, all trades and professions propose more and more harsher requirement to metal material, and the metal material of single composition is usually difficult to the requirement simultaneously meeting many-sided performance in actual use procedure.In the case, choose two or more metal material, adopt various different process to make composite board and can meet special combination property requirement.
Through the development of many decades, metallic composite panel has become important structural material and functional material.Composite metal plate has following features: one is that selected metal can mutually be learnt from other's strong points to offset one's weaknesses in performance, arbitrary constituent element metal material before the combination property of composite plate is better than non-compound.As the composite pole that steel and non-ferrous metal combine, not only there is high strength and the toughness of steel, and there is the specific physical chemical property of non-ferrous metal; And for example high-alloy steel often can not be cast large ingot or be difficult to roll into large plate, but one deck blank that it can make clad steel plate rolls into large plate together with steel billet.Two is the production costs adopting composite metal plate can save precious metal material, economize energy and sheet material significantly, when producing the composite boards such as stainless steel one carbon steel, titanium one steel, copper one steel, nickel one steel, the noble metal weight such as Ti, Cu, Ni only account for 5% ~ 20% of whole composite plate weight.Titanium one steel composite board is about 1/3 of titanium plate price; The composite plates such as stainless steel one carbon steel, copper one steel be respectively corrosion resistant plate, copper coin price 50% ~ 70%.
Clad steel plate is the important kind in clad metal sheet, and it is widely used in the industry such as oil, chemical industry, machinery, shipbuilding, power, is in great demand.
Nineteen thirties, the U.S. and Germany just succeed in developing clad steel plate, afterwards recent decades composite board production obtain high speed development at home and abroad.Since the eighties, the output of the annual stainless steel clad plate of Japan is more than 30,000 tons, and the composite board annual production of the U.S. and the former Soviet Union also reaches tens thousand of ton.Since China adopts rolling to produce stainless steel one steel composite board from nineteen sixty-five, although all achieve significant progress in the method for manufacturing technology and production capacity etc. of clad steel plate, but totally have a long way to go compared with abroad, be mainly manifested in production capacity not enough and large format composite board can not be produced far away, still need a large amount of clad steel plate of import every year.
Through the research and development of decades, composite metal plate has developed multiple processing condition and method, the composite metal plate technique generally used at present is method hot rolling method, it is while utilizing metal plastic deformation, in order to realize crimping seam under less pressure, adopt high-temperature heating to make to treat that multiple material is in state of activation, it is consistent that the most operation in its process is produced with general steel plate, and main difference is the preparation that plate changes.The assembling that the master operation of method hot rolling method comprises the processing (cutting) of substrate and compound plate, surface treatment (pickling, grinding, nickel plating), plate change and welding, heating and rolling etc.The preparatory process that plate changes is the critical process in method hot rolling technique, and when plate is repeatedly assembled, surrounding must carry out seal welding with blend stop, and welding manner is generally submerged-arc welding or CO2 protection weldering.For the composite plate of below thickness 50mm, usually because basic unit is different with the resistance of deformation of composite bed, during rolling, generation bends by composite plate, therefore normal employing symmetry rolling method, be stacked together symmetrically by two groups of composition metal combinations, place separation layer in the middle of it, surrounding in addition soldering and sealing, is then rolled.Rolling thickness is greater than to the composite plate of 50mm, outlier rolling or half interlayer rolling can be used.Method hot rolling method production composite plate tool is adopted to have the following advantages: 1, can give full play to the ductility under the rolling power of milling train and material at high temperature, product size scope is wide, can produce the large template of long and wide various thickness specifications.2, easily industrially realize stablizing and the large-scale production of economy, production cost is lower.3, the pollution of nonmetallic inclusion to junction surface can be reduced, obtain homogeneous joint.
But applicant finds in long term production, conventional method hot rolling method needs nonmetallic inclusion to composite plate material cleaning for bonding composite surface and oxide film, process is vacuumized to composite surface, also a series of welding operation will be carried out simultaneously, after having welded, 600 ~ 1350 DEG C need be heated to entire plate and just can be rolled.Obvious like this difficulty and the production time increasing composite metal plate production.Meanwhile, above-mentioned method hot rolling method can not carry out Continuous maching to plate, can only the processing of one piece of plate, one piece of plate, significantly reduces the production efficiency of composite metal plate.
Summary of the invention
Object of the present invention is exactly rolling casting bonding process units and the method that will provide a kind of composite metal plate, the operations such as continuous casting, rolling, even heat treatment integrate by these apparatus and method, make the strip base of production slightly through cold rolling just disposable formation finished industrial product, simplify production process, shorten the production cycle, equipment investment is corresponding minimizing also, and product cost significantly reduces, and strip is not inferior to traditional handicraft in quality.Meanwhile, these apparatus and method do not need to vacuumize process to composite surface, do not have traditional welding process, reduce further difficulty and the production time of composite metal plate production.In addition, these apparatus and method can carry out Continuous maching to band, improve the production efficiency of composite metal plate.
For realizing this object, the rolling casting bonding process units of the composite metal plate designed by the present invention, it is characterized in that: it comprises mother metal uncoiler, be positioned at mother metal uncoiler output rear for carrying the first pinch roll of mother metal, be positioned at the first pinch roll rear for changing the guide roller of mother metal throughput direction, be positioned at below guide roller for carrying out the strip caster of mother metal composition operation, be arranged in above strip caster for carrying the tundish of composite bed liquation to strip caster, be positioned at the cooling twice leveling roll for metal clad plate strip being cooled further below strip caster, be positioned at second pinch roll of cooling twice leveling roll rear for transferring metal complex plate strip, be positioned at the second cold-rolling mill of pinch roll rear for being rolled metal clad plate strip, be positioned at the guiding jockey pulley of cold-rolling mill rear for composite metal plate belt tension after controlled rolling, be positioned at the coiling machine of guiding jockey pulley rear for batching metal clad plate strip after rolling, wherein, described strip caster comprises the molten bath formed by the crystallization roll group at two ends and the side seal board of both sides, the delivery outlet of described tundish is corresponding with molten bath.
Further, the direction, input port of described second pinch roll and the delivery outlet direction of cooling twice leveling roll vertical.
Further, the input of described guide roller is vertical with the input direction of strip caster, and the front of described cold-rolling mill is provided with another coiling machine.
A rolling casting bonding production method for composite metal plate, it is characterized in that, it comprises the steps:
Step 1: tundish pours into composite bed liquation to setting height in the molten bath of strip caster;
Step 2: compound parent roll forms compound master tape through the uncoiling of mother metal uncoiler, and by the first pinch roll, compound master tape is sent into guide roller;
Step 3: compound master tape is vertically sent in molten bath by guide roller;
Step 4: compound master tape passes molten bath from top to bottom with certain speed, the temperature of described compound master tape is lower than the temperature of composite bed liquation in molten bath, compound master tape makes the composite bed liquation of compound master tape near surface lower the temperature, solidify or crystallization, form the multiple layer film that one deck solidifies on compound master tape surface, form just composite metal plate;
Step 5: first composite metal plate is through the crystallization roll group of strip caster, crystallization roll group cools in crystallization roll group and the composite bed liquation just between composite metal plate, at the beginning of making, the surface of composite metal plate forms the multiple layer film that another layer solidifies, when the first composite metal plate of this surface solidification multiple layer film enters identical of crystallization roll group, the surface of composite metal plate at the beginning of crystallization roll group provides certain pressure to be pressed onto by multiple layer film to multiple layer film, first composite metal plate from the identical point of crystallization roll group out time, composite bed and master tape combine securely, form metal clad plate strip,
Step 6: described metal clad plate strip is left strip caster and entered cooling twice leveling roll, in cooling twice leveling roll, water flowing makes metal clad plate strip cool further;
Step 7: it is shaping that further cooled metal clad plate strip sends into cold rolling mill by the second pinch roll, and input guiding jockey pulley carries out tension force control, finally enters coiling machine and forms metal composite coiled sheet.
Further, in above-mentioned steps 1, the altitude range that composite bed liquation pours into molten bath is 0.01 ~ 0.9 times of crystallization roll radius.
Further, in above-mentioned steps 4, compound master tape passes molten bath from top to bottom with the speed of 0.10 ~ 100m/min.
Further, in above-mentioned steps 5, the surface of composite metal plate at the beginning of crystallization roll group provides the pressure of 5 ~ 5000KN to be pressed onto by multiple layer film to multiple layer film.
Further, in above-mentioned steps 7, cold-rolling mill carries out smooth, rolling or polishing to metal clad plate strip.
Further, in above-mentioned steps 4, temperature range when compound master tape enters molten bath is 20 ~ 780 DEG C, and in described molten bath, the temperature range of composite bed liquation is that the fusion temperature of composite bed adds 10 ~ 120 DEG C.
Further, in above-mentioned steps 2, first compound parent roll carries out removing surface, then enters mother metal uncoiler; In described step 1, at bath surface winding-up protective gas.
Beneficial effect of the present invention is:
1) because this device has water-cooled crystallization roll and the mother metal lower than cladding fusing point, cladding enters certainty solidification and crystallization on crystallization roll and mother metal behind molten bath, then forms composite by the extruding of crystallization roll.So these apparatus and method are applicable to the compound of multiple material:
As: two-sided same Material cladding:
Copper-steel-copper composite plate, steel band is as mother metal, and copper or copper alloy are as composite bed;
Aluminium-steel-aluminum composite plate, steel band is as mother metal, and aluminum or aluminum alloy is as composite bed;
Stainless steel-steel-stainless steel clad plate, steel band is as mother metal, and stainless steel is as composite bed;
Aluminium-copper-aluminum composite plate, copper strips is as mother metal, and aluminum or aluminum alloy is as composite bed;
Silver-copper-steel-copper-silver-colored composite plate, copper-steel-copper composite plate is mother metal, and silver is composite bed;
Zinc-steel-zinc composite plate, is equivalent to strip hot-dip galvanizing, and the relative conventional method of the present invention eliminates the sinking roller in zinc pot.
Copper-steel-aluminium compound, stainless steel-steel-aluminium compound, stainless steel-steel-copper compound etc.
In addition, because mother metal is in molten bath, by molten bath dimidiation, the compound of two-sided different materials can be carried out:
2) the present invention is applicable to the compound of multi-thickness specification plate:
By selecting the thickness of mother metal, adjustment master tape, through the technological parameter such as speed, melt temperature in molten bath, realizes mother metal and composite bed different-thickness ratio; If mother metal is steel band, thickness 2mm, by molten bath under the speed of 20m/min, cladding is copper, and melt temperature is 1100 DEG C, and liquation height is 30mm, and the thickness of two-sided cladding is 0.15mm, and the material thickness after compound is 2.3mm, and the ratio of copper steel is 3:20; If mother metal is aluminium strip, thickness 5mm, by molten bath under the speed of 30m/min, cladding is copper, and melt temperature is 1085 DEG C, and liquation height is 15mm, and the thickness of two-sided cladding is 0.1mm, and the material thickness after compound is 5.2mm, and the ratio of aluminum bronze is 1:25;
By determining different cold roling reductions, the composite strip of multi-thickness specification can be produced.As the copper-steel composite material of above-mentioned 2.3mm, be cooled to less than 300 DEG C to carry out cold rolling processing, the material of the different-thickness such as 2.0mm, 1.8mm, 1.5mm and 1.2mm can be processed into.
3) this method technological process is continuous, compact, and technique adjustment is simple and convenient, and traditional method hot rolling method can only the processing of one piece of plate, one piece of plate, and the present invention can realize the Continuous maching of band.
4) composite plate that the present invention produces Thin Specs has clear superiority, directly rolls desired thickness by milling train;
5) the invention belongs near net shape continuous casting (all casting are close to the casting mode of final products size and dimension) technique, small investment, running cost are low.
6) the present invention does not need to vacuumize process to composite plate material, reduces the production cost of composite plate material, improves the production efficiency of composite plate material.
7) the present invention does not need to carry out any welding operation, reduces the difficulty of production.
8) final production of the present invention composite metal plate out, compares the composite metal plate that traditional method hot rolling method is produced, and the tack of its cladding and mother metal is good, and smooth surface is smooth, good combination property.
Figure of description
Fig. 1 is apparatus of the present invention part-structure schematic diagram.
Wherein, 1-mother metal uncoiler, the 2-the first pinch roll, 3-guide roller, 4-tundish, 5-composite bed liquation, 6-strip caster, 6.1-crystallization roll group, 6.2-side seal board, 6.3-molten bath, 7-cooling twice leveling roll, 8-metal clad plate strip, the 9-the second pinch roll, 10-cold-rolling mill, 11-guiding jockey pulley, 12-coiling machine, 13-compound master tape.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
The rolling casting bonding process units of composite metal plate as shown in Figure 1, it comprises mother metal uncoiler 1, be positioned at mother metal uncoiler 1 output rear for carrying the first pinch roll 2 of mother metal, be positioned at the first pinch roll 2 rear for changing the guide roller 3 of mother metal throughput direction, be positioned at below guide roller 3 for carrying out the strip caster 6 of mother metal composition operation, be arranged in above strip caster 6 for carrying the tundish 4 of composite bed liquation to strip caster 6, be positioned at the cooling twice leveling roll 7 for metal clad plate strip 8 being cooled further below strip caster 6, be positioned at second pinch roll 9 of cooling twice leveling roll 7 rear for transferring metal complex plate strip 8, be positioned at the second cold-rolling mill 10 of pinch roll 9 rear for being rolled metal clad plate strip 8, be positioned at the guiding jockey pulley 11 of cold-rolling mill 10 rear for metal clad plate strip after controlled rolling 8 tension force, be positioned at the coiling machine 12 of guiding jockey pulley 11 rear for batching metal clad plate strip after rolling 8, wherein, described strip caster 6 comprises the molten bath 6.3 formed by the crystallization roll group 6.1 at two ends and the side seal board 6.2 of both sides, the delivery outlet of described tundish 4 is corresponding with molten bath 6.3.
In technique scheme, the direction, input port of the second pinch roll 9 is vertical with the delivery outlet direction of cooling twice leveling roll 7.
In technique scheme, the input of described guide roller 3 is vertical with the input direction of strip caster 6, and the front of described cold-rolling mill 10 is provided with another coiling machine 12.The both sides of cold-rolling mill 10 are equipped with the reversible rolling that coiling machine 12 conveniently realizes composite metal plate.
A kind of rolling casting bonding production method of composite metal plate, the method is by mother metal to be composite, by mother metal uncoiler 1, guide roller 3, enters in the molten bath 6.3 of strip caster 6 from top to bottom, i.e. the molten bath 6.3 of two crystallization rolls and bilateral shrouding 6.2 formation, it is the metal liquid of layer to be composite in molten bath 6.3, because the temperature of mother metal is lower than the temperature of layer metal liquid to be composite, liquid at mother metal surface crystallization, can be equivalent to or immersion; Meanwhile, due to crystallization roll water flowing cooling, metal liquid also can in the contact zone crystallization with crystallization roll, and when mother metal arrives the previous anastomotic of crystallization roll, the thin metal layer of crystallization on roll surface is pressed on the crystallizing layer of mother metal by crystallization roll, forms perfect composite board; Composite board leaves previous anastomotic and enters secondary cooling zone, by the leveling roll of water flowing, composite plate is cooled further, then, according to user's needs, composite board enters milling train, carries out skin pass rolling or polishing rolling, ensure performance and the surface quality of composite board, finally batch rolling.
The present invention includes following steps specifically:
Step 1: tundish 4 pours into composite bed liquation 5 to setting height in the molten bath 6.3 of strip caster 6;
Step 2: compound parent roll forms compound master tape 13 through mother metal uncoiler 1 uncoiling, and by the first pinch roll 2, compound master tape 13 is sent into guide roller 3;
Step 3: compound master tape 13 is vertically sent in molten bath 6.3 by guide roller 3;
Step 4: compound master tape 13 passes molten bath 6.3 from top to bottom with certain speed, the temperature of described compound master tape 13 is lower than the temperature of composite bed liquation 5 in molten bath 6.3, compound master tape 13 makes the composite bed liquation 5 of compound master tape 13 near surface lower the temperature, solidify or crystallization, form the multiple layer film that one deck solidifies on compound master tape 13 surface, form just composite metal plate;
Step 5: first composite metal plate is through the crystallization roll group 6.1 of strip caster 6, crystallization roll group 6.1 cools in crystallization roll group 6.1 and the composite bed liquation 5 just between composite metal plate, at the beginning of making, the surface of composite metal plate forms the multiple layer film that another layer solidifies, when the first composite metal plate of this surface solidification multiple layer film enters identical of crystallization roll group 6.1, crystallization roll group 6.1 pairs of multiple layer film provide certain pressure multiple layer film to be pressed onto the surface of just composite metal plate, first composite metal plate from the identical point of crystallization roll group 6.1 out time, composite bed and master tape combine securely, form metal clad plate strip 8,
Step 6: described metal clad plate strip 8 is left strip caster 6 and entered cooling twice leveling roll 7, in cooling twice leveling roll 7, water flowing makes metal clad plate strip 8 cool further;
Step 7: further cooled metal clad plate strip 8 sends into cold-rolling mill 10 roll forming by the second pinch roll 9, and input guiding jockey pulley 11 carries out tension force control, finally enters coiling machine 12 and forms metal composite coiled sheet.
In technique scheme, the initial set-up procedure of method of the present invention is: mother metal takes the lead to enter coiling machine 12 by the first pinch roll 2, guide roller 3, strip caster 6, cooling twice leveling roll 7, second pinch roll 9, cold-rolling mill 10, guiding jockey pulley 11 successively, and 2 ~ 3 circles that coiling machine 12 is reeled; Then adjust the roll gap of crystallization roll group 6.1, make crystallization roll group 6.1 clamp mother metal; Tundish 4 is annotated composite bed liquation 5 in molten bath 6.3, and when arriving the liquid level of setting, whole production line equipment starts simultaneously, namely proceeds to step 2.
In the step 1 of technique scheme, the altitude range that composite bed liquation 5 pours into molten bath 6.3 is 0.01 ~ 0.9 times of crystallization roll radius.At the same speed, the thickness of cladding is directly related with the height of molten bath inner melt, and face, molten bath is higher, and cladding is thicker, and vice versa.
In the step 4 of technique scheme, compound master tape 13 passes molten bath 6.3 from top to bottom with the speed of 0.10 ~ 100m/min.Under identical liquation height, speed is faster, and cladding is thinner, and vice versa.As speed crosses 100m/min, cladding is too thin, and between general 20 ~ 50 μm, the combination property of multiple material is not given prominence to.
In the step 5 of technique scheme, crystallization roll group 6.1 pairs of multiple layer film provide the pressure of 5 ~ 5000KN (different according to bandwidth, pressure is different, and pressure needed for material difference is also different) multiple layer film to be pressed onto the surface of just composite metal plate.
In the step 7 of technique scheme, cold-rolling mill 10 pairs of metal clad plate strip 8 carry out smooth, rolling or polishing.Pressure distortion little (0.5% ~ 5% reduction ratio) is for smooth, and pressure distortion comparatively large (5% ~ 75% reduction ratio) is rolling, and almost not having a drafts effects on surface to carry out smooth is polishing.
In the step 4 of technique scheme, temperature range when compound master tape 13 enters molten bath 6.3 is 20 ~ 780 DEG C, and temperature is lower, and cladding is thicker, and in described molten bath 6.3, the temperature range of composite bed liquation 5 is that the fusion temperature of composite bed adds 10 ~ 120 DEG C.Temperature is higher, and cool faster, crystal grain is more tiny.
In the step 2 of technique scheme, first compound parent roll carries out removing surface, then enters mother metal uncoiler 1; In described step 1, at molten bath 6.3 liquid level winding-up protective gas, this protective gas is argon gas or nitrogen etc., prevents cladding liquation from contacting with air and is oxidized.
In technique scheme, for needing thinning composite strip, can further rolling be carried out thinning, and reaching final properties of product requirement through heat treatment.
In the step 4 of technique scheme, the temperature of compound master tape 13 is lower than the temperature of composite bed liquation 5, compound master tape 13 is passed composite bed liquation 5 from top to bottom with certain speed, compound master tape 13 makes the liquation of its near surface lower the temperature, solidify or crystallization, form the multiple layer film that one deck solidifies on compound master tape 13 surface; Meanwhile, the region of being with the cold crystallization roll group 6.1 of water flowing to contact with liquation makes liquation solidify, and forms the multiple layer film that another layer solidifies.
The content that description is not described in detail belongs to the known prior art of professional and technical personnel in the field.
Claims (5)
1. the rolling casting bonding production method utilizing the rolling casting bonding process units of composite metal plate to carry out composite metal plate, the rolling casting bonding process units of described composite metal plate comprises mother metal uncoiler (1), be positioned at mother metal uncoiler (1) output rear for carrying first pinch roll (2) of mother metal, be positioned at the first pinch roll (2) rear for changing the guide roller (3) of mother metal throughput direction, be positioned at guide roller (3) below for carrying out the strip caster (6) of mother metal composition operation, be arranged in the tundish (4) that strip caster (6) top is used for carrying to strip caster (6) composite bed liquation, be positioned at the cooling twice leveling roll (7) that strip caster (6) below is used for metal clad plate strip (8) to cool further, be positioned at the second pinch roll (9) that cooling twice leveling roll (7) rear is used for transferring metal complex plate strip (8), be positioned at the cold-rolling mill (10) that the second pinch roll (9) rear is used for being rolled metal clad plate strip (8), be positioned at the guiding jockey pulley (11) of cold-rolling mill (10) rear for metal clad plate strip (8) tension force after controlled rolling, be positioned at the coiling machine (12) that guiding jockey pulley (11) rear is used for batching metal clad plate strip after rolling (8), wherein, described strip caster (6) comprises the molten bath (6.3) formed by the crystallization roll group (6.1) at two ends and the side seal board (6.2) of both sides, the delivery outlet of described tundish (4) is corresponding with molten bath (6.3),
The direction, input port of described second pinch roll (9) is vertical with the delivery outlet direction of cooling twice leveling roll (7);
The input of described guide roller (3) is vertical with the input direction of strip caster (6), and the front of described cold-rolling mill (10) is provided with another coiling machine (12);
It is characterized in that: utilize the rolling casting bonding process units of composite metal plate to carry out the rolling casting bonding production method of composite metal plate, comprise the steps:
Step 1: tundish (4) pours into composite bed liquation (5) to setting height in the molten bath (6.3) of strip caster (6);
Step 2: compound parent roll forms compound master tape (13) through mother metal uncoiler (1) uncoiling, and by the first pinch roll (2), compound master tape (13) is sent into guide roller (3);
Step 3: compound master tape (13) is vertically sent in molten bath (6.3) by guide roller (3);
Step 4: compound master tape (13) passes molten bath (6.3) from top to bottom with certain speed, the temperature of described compound master tape (13) is lower than the temperature of molten bath (6.3) interior composite bed liquation (5), compound master tape (13) makes the composite bed liquation (5) of compound master tape (13) near surface lower the temperature, solidify or crystallization, form the multiple layer film that one deck solidifies on compound master tape (13) surface, form just composite metal plate;
Step 5: first composite metal plate is through the crystallization roll group (6.1) of strip caster (6), crystallization roll group (6.1) will be positioned at crystallization roll group (6.1) and the cooling of the composite bed liquation (5) just between composite metal plate, at the beginning of making, the surface of composite metal plate forms the multiple layer film that another layer solidifies, when the first composite metal plate of this surface solidification multiple layer film enters identical of crystallization roll group (6.1), the surface of composite metal plate at the beginning of crystallization roll group (6.1) provides certain pressure to be pressed onto by multiple layer film to multiple layer film, first composite metal plate from the identical point of crystallization roll group (6.1) out time, composite bed and master tape combine securely, form metal clad plate strip (8),
Step 6: described metal clad plate strip (8) is left strip caster (6) and entered cooling twice leveling roll (7), cooling twice leveling roll (7) interior water flowing makes metal clad plate strip (8) cool further;
Step 7: further cooled metal clad plate strip (8) sends into cold-rolling mill (10) roll forming by the second pinch roll (9), and tension force control is carried out in input guiding jockey pulley (11), finally enter coiling machine (12) and form metal composite coiled sheet;
In described step 4, temperature range when compound master tape (13) enters molten bath (6.3) is 20 ~ 780 DEG C, and the temperature range of described molten bath (6.3) interior composite bed liquation (5) is that the fusion temperature of composite bed adds 10 ~ 120 DEG C;
In described step 2, first compound parent roll carries out removing surface, then enters mother metal uncoiler (1); In described step 1, at molten bath (6.3) liquid level winding-up protective gas;
In described step 4, the temperature of compound master tape (13) is lower than the temperature of composite bed liquation (5), compound master tape (13) is passed composite bed liquation (5) from top to bottom with certain speed, compound master tape (13) makes the liquation of its near surface lower the temperature, solidify or crystallization, form the multiple layer film that one deck solidifies on compound master tape (13) surface; Meanwhile, the region of being with the cold crystallization roll group (6.1) of water flowing to contact with liquation makes liquation solidify, and forms the multiple layer film that another layer solidifies.
2. the rolling casting bonding production method of composite metal plate according to claim 1, is characterized in that: in described step 1, and the altitude range that composite bed liquation (5) pours into molten bath (6.3) is 0.01 ~ 0.9 times of crystallization roll radius.
3. the rolling casting bonding production method of composite metal plate according to claim 1, is characterized in that: in described step 4, and compound master tape (13) passes molten bath (6.3) from top to bottom with the speed of 0.10 ~ 100m/min.
4. the rolling casting bonding production method of composite metal plate according to claim 1, it is characterized in that: in described step 5, the surface of composite metal plate at the beginning of crystallization roll group (6.1) provides the pressure of 5 ~ 5000KN to be pressed onto by multiple layer film to multiple layer film.
5. the rolling casting bonding production method of composite metal plate according to claim 1, is characterized in that: in described step 7, and cold-rolling mill (10) carries out smooth, rolling or polishing to metal clad plate strip (8).
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