CN102671945B - Continuous cast-rolling and composite forming device for three-layered metal composite plate by adopting brazing method - Google Patents
Continuous cast-rolling and composite forming device for three-layered metal composite plate by adopting brazing method Download PDFInfo
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- CN102671945B CN102671945B CN201110438621.4A CN201110438621A CN102671945B CN 102671945 B CN102671945 B CN 102671945B CN 201110438621 A CN201110438621 A CN 201110438621A CN 102671945 B CN102671945 B CN 102671945B
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Abstract
The invention discloses a continuous cast-rolling and composite forming device for a three-layered metal composite plate by adopting a brazing method. The continuous cast-rolling and composite forming device for the three-layered metal composite plate by adopting the brazing method comprises a casting tank, wherein a casting opening is formed on the casting tank, a preformed welding passageway is arranged below the casting bath, a material conveying roller is arranged at each of the left side and the right side of an outer circumferential surface of a casting nozzle, a conveying passageway is arranged between each material conveying roller and the outer circumferential surface of the casting nozzle, the width of each conveying passageway at the narrowest position is greater than that of a metal plate/strip which passes through the narrowest position of the conveying passageway so as to form a slag discharging gap between the casting nozzle and the material conveying roller, an upper overflow slope is arranged on the outer circumferential surface of the casting nozzle, and extends from a nearby position of the casting opening to the conveying passageway along the outwards inclining direction, and a rolling group is arranged at a material discharging opening of the preformed welding passageway. According to the invention, reaction products of brazing flux and residual oxides on the metal plate/strip and the residual brazing flux after the reaction float at the upper overflow slope and overflow upwards through the slag discharging gaps in the conveying passageways, without entering a complex along with sinking molten metal.
Description
Technical field
The invention belongs to metal material compound forming technique field, be specifically related to a kind of method for brazing continuous casting and rolling compound molding device of three-layer metal composite plate.
Background technology
Copper has good conduction, heat conduction, corrosion resistant and bacteriostasis property, thereby is widely used, but the density of copper is large, and price is high, and resource is shorter.And China's bauxite resource is abundanter, the density of aluminium is lower, and low price has become good copper substituting material in a lot of fields.But the conduction of aluminium, heat conductivility be not as copper, welding, arc extinguishing, the performance such as wear-resisting are also poor, therefore in some occasion, as product scopes such as switch, fin, rebounds, are difficult with the direct instead of copper of aluminium.At present, a kind of copper aluminum bronze 3-layer composite material that combines the high stability of copper and the advantage of low cost of aluminium has substituted fine copper or pure aluminum material gradually, with its special combination property, electric power, heat transfer, military project, electronic computer, electric elements, aerospace field, automobile and the every field such as civilian are widely used in.
At present, Gu the manufacturing process of copper aluminum bronze 3-layer composite material is mainly solid-complex method, produce by casting crimping method, clad welded method, explosion composite algorithm, composite ingot hot rolling method, continuously extruded welding etc., have the shortcomings such as complex manufacturing, production cost is high, efficiency is low, combined strength bination is low.
The production method of a kind of aluminium and copper composite metal band is disclosed in the application for a patent for invention that is CN111759071A at publication number, in the method liquid state or semisolid aluminum or aluminum alloy and In Crystal Solid Copper strip are carried out to anaerobic continuous casting and rolling, make copper-aluminum composite board band, the copper plate/strip in this copper-aluminum composite board band and the bond strength of aluminium liquid reach 110MPa left and right.The method is mainly by polishing online the faying face of copper coin to non-oxidation layer, and technique is more complicated, and because adopt mechanical grinding, makes on the faying face of copper plate/strip, often to have retained oxide, affects the bond strength of aluminium liquid and copper plate/strip.
Summary of the invention
The object of the present invention is to provide a kind of method for brazing continuous casting and rolling compound molding device that is suitable for removing with brazing flux the three-layer metal composite plate of the residual oxide on the faying face of copper plate/strip.
For achieving the above object, the method for brazing continuous casting and rolling compound molding device of three-layer metal composite plate provided by the present invention adopts following technical scheme: a kind of method for brazing continuous casting and rolling compound molding device of three-layer metal composite plate, comprise while casting for holding the casting groove as the molten metal of solder, on casting groove, offer pouring mouth, bottom discharge end at pouring mouth offers cast gate, below casting groove, be provided with the preform weld pass of docking with described cast gate, preform weld pass is by front, postforming baffle plate and a left side, right shaping flapper surrounds, each side be provided with one for metal plate and belt being sent into the conveying roller of preform weld pass at the outer peripheral face of pouring mouth, between each conveying roller and the outer peripheral face of pouring mouth, respectively leave a transfer passage for passing through for metal plate and belt, the width at narrow place of this transfer passage is greater than width by metal plate and belt herein to form deslagging gap between pouring mouth and conveying roller, on the outer peripheral face of pouring mouth, there is near the overflow inclined-plane from extend to described transfer passage cast gate along outward-dipping direction, be provided with the roll stacks for welding complex being rolled into metal composite strip at the discharging opening place of preform weld pass.
Two described conveying rollers are the preheat roll for the metal plate and belt that is conveyed into preform weld pass being carried out to preheating.
On the outer peripheral face of described pouring mouth, there is corresponding with described conveying roller outer peripheral face arc section, between the arc section and conveying roller outer peripheral face of described transfer passage on described pouring mouth.
The position that the left and right shaping flapper at the charging aperture place of described preform weld pass connects with two conveying rollers is the suitable arc structure contacting of outer peripheral face with conveying roller.
The position that the left and right shaping flapper at the discharging opening place of described preform weld pass connects with two rolls is and the corresponding suitable arc structure contacting of cold roll outer peripheral face in cold roll group.
Described cast gate is throat structure.
Described pouring mouth comprises the running channel vertically extending, and described cast gate is positioned at the discharge end of running channel.
The invention has the beneficial effects as follows: the method for brazing continuous casting and rolling compound molding device of three-layer metal composite plate provided by the present invention is in the time producing composite metal plate, at conveying roller in inputting metal plate and belt in preformed weld pass, in preformed weld pass, input molten metal by cast gate, in preformed weld pass, be combined into composite metal by soldering as the molten metal of solder with as the metal plate and belt of mother metal, this composite metal is lowered the temperature gradually in the time moving down, finally entering roll stacks is rolling to desired thickness and is made semi-solid-state metal material cooled and solidified.When soldering casting and rolling device work provided by the present invention, the density ratio molten metal density that spreads upon brazing flux remaining after product that brazing flux on the faying face of metal plate and belt reacts with the residual oxide on faying face on metal plate and belt and reaction is little, thereby this product and remaining brazing flux float over overflow inclined-plane place and upwards overflow by the deslagging gap in transfer passage, the molten metal that can not follow sinking enters in complex, does not affect the quality of metal composite strip.Above-mentioned this device can be realized the continuous combined shaping of metal composite strip, and production efficiency is high, and whole technological process is short, equipment is simple, brings and says for composite metal plate, adopts soldering casting-rolling method to be shaped, finished product bond strength is high, and dimensional accuracy is high, and surface quality is good.The brazing flux spreading upon in the present invention on metal plate and belt can be removed the residual oxide on faying face to greatest extent, and mating surface is cleaner, and wettability is better, thereby has higher bond strength.And the existence of weld pass, make molten metal and metal plate and belt at high temperature time of contact long, strengthened the diffusion of the metallic atom between faying face, its bond strength is higher.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of embodiment of method for brazing continuous casting and rolling compound molding device of three-layer metal composite plate provided by the present invention;
Fig. 2 is the A place structure for amplifying schematic diagram in Fig. 1.
Detailed description of the invention
As shown in Figure 1 and Figure 2, a kind of embodiment of method for brazing continuous casting and rolling compound molding device of three-layer metal composite plate, compound molding device in this embodiment comprises while casting for holding the casting groove 2 of aluminium liquid, bottom at casting groove 2 is provided with pouring mouth 13, pouring mouth 13 comprises the running channel vertically extending, be provided with cast gate 12 at the discharge end of running channel, in the present embodiment, cast gate 12 is throat structure, and on the bottom end face of pouring mouth 13, has near the overflow inclined-plane 14 from extend to described transfer passage cast gate 12 along outward-dipping direction.Below casting groove 2, be provided with the preform weld pass 9 for soldering formed composite plate of docking with described cast gate, this preform weld pass 9 is by front, postforming baffle plate and a left side, right shaping flapper surrounds (in the drawings, postforming baffle plate does not draw), each side be provided with one for copper plate/strip being sent into the conveying roller of preform weld pass at the outer peripheral face of pouring mouth 13, two conveying rollers are left conveying roller 10 and right conveying roller 4, between each conveying roller and the outer peripheral face of pouring mouth, leave the transfer passage for passing through for copper plate/strip, between each conveying roller and the outer peripheral face of pouring mouth, leave the transfer passage for passing through for copper plate/strip, on the outer peripheral face of described pouring mouth 12, there is corresponding with described conveying roller outer peripheral face arc section, between the arc section and the outer peripheral face of conveying roller of described transfer passage on described pouring mouth, the width that the width at narrow place is greater than copper plate/strip of the transfer passage between pouring mouth and conveying roller to form deslagging gap between pouring mouth and conveying roller.The position that the left and right shaping flapper at the charging aperture place of preform weld pass 9 connects with two conveying rollers is the suitable circular arc contacting of outer peripheral face or the ramp structure with conveying roller, when use, the right shaping flapper of right copper plate/strip 3 being close to preform weld pass by right conveying roller 4 is sent in preform weld pass 9, and the left shaping flapper of left copper plate/strip 11 being close to preform weld pass by left conveying roller 10 is sent in preform weld pass 9, stop and prevent that aluminium hydrorrhea from going out by the forward and backward shaping flapper preform weld pass from the aluminium liquid of cast gate output.Discharging opening place in preform weld pass 9 is provided with the roll stacks for complex 8 is rolled, two rolls that roll stacks is arranged by left and right form, two rolls are respectively left roll 7 and right roll 5, two rolls are used in conjunction with carry out roll compacting system to metal composite plate body, roll in the present embodiment is water-cooled roll, when complex 8 rollings are complex plate strip 6, also its temperature is reduced to below the solid-state temperature of aluminium.For improving casting quality, the position that the left and right shaping flapper at the discharging opening place of preform weld pass 9 connects with two rolls is the arc structure coordinating with the suitable contact gap of outer peripheral face of roll.
Preferably, two conveying rollers in above-described embodiment are for providing motion-promotion force to the copper plate/strip of input, and can be to making copper plate/strip carry out preheating to it entering before weld pass.Two conveying rollers are the preheat roll for the copper plate/strip that is conveyed into preform weld pass being carried out to preheating, are provided with electric heater unit in conveying roller, and it is in order to ensure welding temperature that copper plate/strip is carried out to preheating.In other embodiments, for copper plate/strip thickness compared with situation little and that aluminum substrate is thicker, when particularly the aluminum substrate thickness between two copper plate/strips in preform weld pass is greater than 5 times of copper plate/strip thickness, also can not carry out preheating to copper plate/strip, save preheating procedure, whole casting and rolling device is simpler.
Between pouring mouth in above-described embodiment and conveying roller, be provided with conveying passage, the bottom of this conveying passage is the arc section corresponding with described conveying roller outer peripheral face, the top of conveying passage is chamfered transition, at the thickness that the width at narrow place is greater than copper plate/strip of conveying passage to form deslagging gap between pouring mouth and conveying roller, this gap of this deslagging can make product that brazing flux reacts with residual oxide and remaining brazing flux upwards overflow, for preventing that aluminium liquid runs off, it between the front and back end of conveying passage and conveying roller, is matched in clearance, its gap length can not allow aluminium liquid flow out.
Cast gate in above-described embodiment is positioned at the discharge end of vertical running channel, in other embodiments, running channel also can be set, and the design of pouring mouth inner chamber is to inverted triangular structure, and cast gate can be set directly at the bottom end opening place of pouring mouth like this.
Cast gate in above-described embodiment is throat structure, can effectively control like this input speed of casting groove to the aluminium liquid of inputting in preform weld pass, in other embodiments, throat structure also can be set, and running channel be designed to thin gauge structure and control the input speed of aluminium liquid.
In the method for brazing rolling casting bonding building mortion providing in above-described embodiment, adopt casting groove to carry out cast aluminum liquid for describing the problem, in fact, in the time of production continuously in enormous quantities, also can adopt the running gate system of general continuous casting and rolling equipment.
What the roll in above-described embodiment adopted is water-cooled roll of the prior art, in other embodiments, also can adopt the roll of other structures of the prior art.
In the time that the method for brazing continuous casting and rolling compound molding device work of the three-layer metal composite plate providing in above-described embodiment is provided, first for subsequent use after even coating one deck brazing flux after the oil removing of left copper plate/strip 11 and right copper plate/strip 3 being descaled, when production by left copper plate/strip 11 and right copper plate/strip 3 with the face that scribbles brazing flux being conveyed in preform weld pass 9 by left conveying roller 10 and right conveying roller 4 respectively in opposite directions, and be preheated to 350～400 DEG C when through conveying roller; Aluminium liquid 1 is after refining, degasification and leaving standstill, be injected between left and right two copper plate/strips in 690～730 DEG C of cast gates 12 through casting groove 2, after aluminium liquid contacts with copper plate/strip, the brazing flux on copper plate/strip surface is dissolved, the brazing flux of fusing can be by the oxide removal of Cu and Al combination face, improve the wetability of copper plate/strip surface to aluminium liquid, the good fusion realizing between the two forms complex; Aluminium liquid is in to copper plate/strip heating, and aluminium liquid enters half curdled appearance fast, and complex is rolled by roll stacks subsequently, is reduced to below the solid state temperature of aluminium, obtains the metal composite strip 6 of desired thickness, and its bond strength can arrive 150MPa left and right.After contacting with the copper plate/strip of smearing brazing flux as the aluminium liquid of solder, realize Welding, the product that brazing flux reacts with the residual oxide on aluminium liquid and copper plate/strip and remaining brazing flux float because density is little, then be stored near overflow inclined-plane 14 and overflowed by the deslagging gap of conveying passage, product can not followed aluminium liquid and be entered in welding complex, so just can not affect the casting welding quality of metal composite strip.
The method for brazing continuous casting and rolling compound molding device of the composite metal plate providing in above-described embodiment can be for the progressive forming of copper aluminum bronze three-layer metal composite plate band, wherein, molten metal can be fine aluminium or molten aluminium alloy, metal plate and belt can be the materials such as fine copper or copper alloy, also can be for other metal materials as the shaping of the metal composite strip of the mother metals such as the molten metal such as copper, aluminium and titanium alloy, stainless steel.That while knowing the using method of soldering casting and rolling device for explanation in above-mentioned, introduces can not be considered as the restriction to claim content as the aluminium liquid of molten metal and as the copper plate/strip of metal plate and belt; no matter whether in casting groove is whether the mother metal that aluminium liquid or conveying roller are sent in preform weld pass is copper plate/strip, the above-mentioned building mortion of every use carries out all should the falling within the scope of protection of the present invention of progressive forming of metal composite strip.
Casting and rolling device provided by the present invention is realized the shaping of composite plate.It compared with prior art has following substantive technical characterstic and significantly technological progress:
1., can realize the continuous combined shaping of copper-aluminum composite board band, production efficiency is high;
2., the continuous pouring under closed state of aluminium liquid, there is not oxidation stain phenomenon;
3., in the time of casting, can remove to greatest extent the residual oxide on faying face to smearing brazing flux on copper plate/strip, mating surface is cleaner, and wettability is better, thereby has higher bond strength.
4., the existence of preformed weld pass, make aluminum bronze composite at high temperature time of contact long, strengthened the diffusion of the metallic atom between faying face, its bond strength is higher, more than can reaching 150MPa;
5., the present invention realizes with copper material and being combined in cast-rolling aluminum, do not need copper plate/strip to remove online oxide layer, technological process is short, equipment is simple.
6., adopt milling method be shaped, product's dimensional precision is high, surface quality is good;
7., the present invention not only can be for the shaping of fine aluminium or aluminium alloy and fine copper or copper alloy complex plate strip, also can be for other metal material as the shaping of the composite plate of the materials such as copper, aluminium and titanium alloy, stainless steel.
Claims (7)
1. the method for brazing continuous casting and rolling compound molding device of a three-layer metal composite plate, it is characterized in that: comprise while casting for holding the casting groove as the molten metal of solder, on casting groove, offer pouring mouth, bottom discharge end at pouring mouth offers cast gate, below casting groove, be provided with the preform weld pass of docking with described cast gate, preform weld pass is by front, postforming baffle plate and a left side, right shaping flapper surrounds, molten metal and metal plate and belt are combined into composite metal by soldering in preformed weld pass, each side be provided with one for metal plate and belt being sent into the conveying roller of preform weld pass at the outer peripheral face of pouring mouth, between each conveying roller and the outer peripheral face of pouring mouth, respectively leave a transfer passage for passing through for metal plate and belt, the width at narrow place of this transfer passage is greater than width by metal plate and belt herein to form deslagging gap between pouring mouth and conveying roller, on the outer peripheral face of pouring mouth, there is near the overflow inclined-plane from extend to described transfer passage cast gate along outward-dipping direction, be provided with the roll stacks for welding complex being rolled into metal composite strip at the discharging opening place of preform weld pass, described metal plate and belt is copper plate/strip.
2. the method for brazing continuous casting and rolling compound molding device of three-layer metal composite plate according to claim 1, is characterized in that: two described conveying rollers are the preheat roll for the metal plate and belt that is conveyed into preform weld pass being carried out to preheating.
3. the method for brazing continuous casting and rolling compound molding device of three-layer metal composite plate according to claim 1 and 2, it is characterized in that: on the outer peripheral face of described pouring mouth, there is corresponding with described conveying roller outer peripheral face arc section, between the arc section and conveying roller outer peripheral face of described transfer passage on described pouring mouth.
4. the method for brazing continuous casting and rolling compound molding device of three-layer metal composite plate according to claim 1 and 2, is characterized in that: the position that the left and right shaping flapper at the charging aperture place of described preform weld pass connects with two conveying rollers is the suitable arc structure contacting of outer peripheral face with conveying roller.
5. the method for brazing continuous casting and rolling compound molding device of three-layer metal composite plate according to claim 1 and 2, is characterized in that: the position that the left and right shaping flapper at the discharging opening place of described preform weld pass connects with two rolls is and the corresponding suitable arc structure contacting of cold roll outer peripheral face in cold roll group.
6. the method for brazing continuous casting and rolling compound molding device of three-layer metal composite plate according to claim 1 and 2, is characterized in that: described cast gate is throat structure.
7. the method for brazing continuous casting and rolling compound molding device of three-layer metal composite plate according to claim 6, is characterized in that: described pouring mouth comprises the running channel vertically extending, and described cast gate is positioned at the discharge end of running channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110438621.4A CN102671945B (en) | 2011-12-25 | 2011-12-25 | Continuous cast-rolling and composite forming device for three-layered metal composite plate by adopting brazing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110438621.4A CN102671945B (en) | 2011-12-25 | 2011-12-25 | Continuous cast-rolling and composite forming device for three-layered metal composite plate by adopting brazing method |
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| CN102671945A CN102671945A (en) | 2012-09-19 |
| CN102671945B true CN102671945B (en) | 2014-11-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104249135A (en) * | 2013-06-28 | 2014-12-31 | 宝山钢铁股份有限公司 | Preparation method for double roller thin strips of clad plate strip |
| CN104249134B (en) * | 2013-06-28 | 2017-02-08 | 宝山钢铁股份有限公司 | Jet rolling method for preparing clad plate strip |
| CN104525564B (en) * | 2014-11-08 | 2016-06-29 | 广东省工业技术研究院(广州有色金属研究院) | The short route roll former of a kind of three-layer metal composite plate and method |
| CN104525879B (en) * | 2014-12-18 | 2016-11-23 | 山东钢铁股份有限公司 | The continuous casting of surface coverage property material steel produces Apparatus and method for |
| CN106734203A (en) * | 2016-12-30 | 2017-05-31 | 宁波大学 | A kind of continuous casting-cross wedge rolling forming method without material head double-metal layer composite hollow axle |
| CN106583454A (en) * | 2016-12-30 | 2017-04-26 | 宁波大学 | Continuous casting-cross wedge rolling moulding method for stud bar-free double-metal layer composite solid shafts |
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| CN1329951A (en) * | 2000-06-19 | 2002-01-09 | 东北大学 | Rolling method and apparatus for combining liquid-solid heterometals |
| CN1915547A (en) * | 2006-09-01 | 2007-02-21 | 北京交通大学 | Composite method for casting and rolling composite plate of steel, aluminum, and graphite |
| CN102039309A (en) * | 2009-10-23 | 2011-05-04 | 宝山钢铁股份有限公司 | Twin-roller double-strip composite-structured thin strip continuous casting and rolling method |
| CN202366941U (en) * | 2011-12-25 | 2012-08-08 | 河南科技大学 | Compound molding device for continuously rolling-casting three-layer metal composite board by using soldering method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62214887A (en) * | 1986-03-18 | 1987-09-21 | Ishikawajima Harima Heavy Ind Co Ltd | Production of clad steel plate |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1329951A (en) * | 2000-06-19 | 2002-01-09 | 东北大学 | Rolling method and apparatus for combining liquid-solid heterometals |
| CN1915547A (en) * | 2006-09-01 | 2007-02-21 | 北京交通大学 | Composite method for casting and rolling composite plate of steel, aluminum, and graphite |
| CN102039309A (en) * | 2009-10-23 | 2011-05-04 | 宝山钢铁股份有限公司 | Twin-roller double-strip composite-structured thin strip continuous casting and rolling method |
| CN202366941U (en) * | 2011-12-25 | 2012-08-08 | 河南科技大学 | Compound molding device for continuously rolling-casting three-layer metal composite board by using soldering method |
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