CN105478476B - A kind of method of rolled metal complex plate strip - Google Patents
A kind of method of rolled metal complex plate strip Download PDFInfo
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- CN105478476B CN105478476B CN201610040133.0A CN201610040133A CN105478476B CN 105478476 B CN105478476 B CN 105478476B CN 201610040133 A CN201610040133 A CN 201610040133A CN 105478476 B CN105478476 B CN 105478476B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
- B21B2001/386—Plates
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Abstract
The invention discloses a kind of method of rolled metal complex plate strip, it is characterized in that：Choose metal substrate and compound plate, the resistance of deformation requirement of compound plate is more than the resistance of deformation of substrate, clear up substrate and compound plate composite surface, compound plate is shut out into whole ripple compound plate by two roller corrugators, the cross sectional shape of ripple is respectively arc-shaped, sinusoidal waveform or triangle, the height of the ripple is s, and the width of ripple is t, and whole ripple compound plate thickness is h0, meet s/h0=(0.1~0.8), 2s/t=tan α, α=（10~40) it spends；Substrate and compound plate closed assembly are compressed into soldering, obtain composite plate blanks；Qualified composite plate blanks will be examined to be sent to compounding machine to offset and roll required thickness, obtain complex plate strip.The present invention solves the difference that dissimilar metal resistance of deformation difference causes metal plastic deformation, whole ripple compound plate curved surface compensates for this species diversity, and cladding and base is made to roll rear length and match, and wooden dipper is not bent, meanwhile whole ripple compound plate increases the tractive force of substrate the binding force between substrate and compound plate.
Description
Technical field
The invention belongs to the materials processing technology fields of metal clad plate strip, and in particular to a kind of rolled metal complex plate strip
Method.
Background technology
With the fast development of science and technology, the birth of the high-new art industry of a batch, proposes more the performance of material
High-caliber requirement, while in order to reduce cost, saving resource, reduction energy consumption, enhance product performance, domestic and foreign scholars are dedicated to
Research and develop novel bimetallic or multi-metal composite board material and rolling new process.Metallic composite technology can play group
First respective advantage of material realizes the allocation optimum of each constituent element material resources, saves precious metal material, realizes single metal not
The performance requirement that can meet, is mainly used in anti-corrosion, pressure vessel manufacturing, and electric construction, medicine, light industry, automobile, shipbuilding, is moved petrochemical industry
The industries such as power, sea water desalination.Laminar composite has the comprehensive mechanical property far above component, in recent years, this respect
Research have become one of hot spot of domestic and international new material research, wherein more active is the research of metal laminate plate.It adopts
With two or more metal material, with composite board made of various different process, different commercial Applications are disclosure satisfy that
Comprehensive performance requirement.In this case, development, production and the application of composite material increasingly show its consequence.
Material it is compound, especially different metal materials is compound, and the exploitation for multifunctional material provides a new technology approach.
The U.S. in 1956 takes the lead in proposing the three step process that metal laminate is compound, i.e.,：Surface treatment-Rolling compund-multilayer
Metal composite theory is handled with technology, layer metal composite plate production technology and new process annealing strengthening, this technology makes double gold
Belong to that Room Temperature Solid State is compound has obtained rapid development.The former Soviet Union starts from the research of laminar composite in the 1930s, main
The composite material of the Metal and Alloys such as the methods of using rolling, casting, explosion method production aluminium, titanium, steel, especially in cold rolling
The research of compound aspect is more deep.Also there are comparable level in English, method, De Deng developed countries to the research of composite material, wherein
Birmingham, GBR university 20th century five, the sixties it is compound to solid phase carried out more systematic research, achieve much into
Fruit.At present, metallic composite is widely used in these countries.Japan in terms of composite material research starting compared with
Evening, but its development is very rapid, has become one of country for being engaged in metal composite most study in recent years.In the 1990s
After, many achievements are achieved to the compound research of stainless steel and aluminium, have applied for multinomial patent, are especially heated in staged compound
And the compound aspect of warm-rolling achieves the achievement in research to attract people's attention.
The country starts from the research of layered metal composite material in the early 1960s, domestic dissimilar metal clad plate is main
There is packet to pour (solid-liquid combination)+roll-bonding method, explosion composite method, diffusion composite algorithm, explosive welding+rolling using the mode of production (cold
Roll, hot rolling) composite algorithm and roll-bonding method etc., but also have a certain distance in terms of plate shape, bond quality.Chongqing in 1958
Iron company is successful with Hot rolling production stainless steel clad plate, and it is compound that nineteen sixty-five Shanghai Metals research institute carries out cold rolling solid phase
A cold rolling solid phase composite production line is built up in the research of technology for 1972.The widely used compound tool of cold rolling solid phase in countries in the world
There are the various features such as Product Precision is high, performance is stable, compound constituent element type selection is unrestricted, but there is also needed for solid phase binding
The shortcomings that critical deformation is greatly and rolling load is high, here it is a big technical barriers of wide cut Thin Specs composite plate rolling.
1986, Northeast China university developed gradient-heated Rolling compund new technology, was started for the rolling of wide cut Thin Specs composite plate
New road.But template warpage residual stress caused by never solving the problem of dissimilar metal mechanical property difference is big.
Packet pours (solid-liquid combination)+roll-bonding method, and the basic principle of centrifugal casting is that quantitative liquid is placed on rotation
's（That is mold）In, it is made to be rotated around single shaft high speed, the material being put at this time is forced by centrifugal force and is distributed in the near of mold
Wall site.Process characteristic is that plate slab, the chemical composition segregation that centrifugal casting produces are the shortcomings that its are fatal, the casting produced
Base is that annular also needs to cut, heats, is straightened ability hot rolling, and poor product quality, production process are more, energy consumption is big, high processing costs.It is quick-fried
The basic principle of fried composite algorithm is the energy generated using explosive charge, and two pieces of metallic plates are made within the Microsecond grade time in the point of impingement
The strain rate for being up to 106~107/s and the high pressure of 104MPa are generated, it is compound so as to fulfill the welding of dissimilar metal；Explosion is multiple
Legal technological advantage is that the metallic combination that difference in material properties can be made extremely greatly different realizes compound；It can be to avoid brittle metal
Between compound generation；Flexibility it is strong, it can be achieved that various profiled pieces it is compound；The bond strength of composite material is high, suitable for big
More ductile metals or alloy；But explosion composite method interface bond strength is uneven, Percentage bound is low, be also easy to produce crackle, shrinkage cavity and
The defects of stomata, in addition, the technique is brought also there are mechanization degree is low, working condition is poor, has certain danger to environment
Serious pollution so that explosion composite method faces the trend gradually eliminated.Composite algorithm is spread due to long diffusion time, having
The shortcomings of product size of limit and relatively low interface bond strength, is not suitable for the industrialized production of large scale complex plate strip.
Explosion-rolling perfectly combines effect due to explosive forming it is difficult to obtain, and to avoid rolling defect, composite plate is rolled to rolling
Roll temperature, roll shape, lubricating condition, blank transfer time, pass reduction control requirement are stringent, and the bad edge that will appear is controlled to open
It splits, pony-roughing pass cladding cracking, causes blank to be scrapped at the defects of template is overproof, dimension overproof；By explosion cladding process and rolling
The influence of deformation technique and plied timber deformation characteristic difference, there are internal stress in entire production procedure for composite plate, generate curved
Song, wooden dipper song or crimp；Treatment of mat before explosion, after explosion, rolling after and product handling system be required for leveling process；It is quick-fried
The unevenness difference of fried cladding slab leads to explosion gap, and locally super write influences explosive effect, and treatment of mat injustice of exploding is difficult to
Assembly causes blank in rolling to be unable to Uniform Flow；It, can only big pressure repeatedly even if finished product plank leveling cannot control lateral convexity
Lower amount strength, which is smoothed, to be rectified by force, leads to partial fracture, while the mechanical property of dissimilar metal differs greatly, rolling complex plate strip
Float Qu Yanchong, and residual stress is big.
Layered metal composite material is produced using rolling mill practice, is a kind of ten lease makings better than techniques such as explosion weldering, diffusion welding (DW)s
The practical method of Ji.At present, roll-bonding method is the development trend of composite plate manufacture, there is higher productivity, low stain, low energy
The features such as consumption.The basic principle of roll-bonding method is under the action of draught pressure, and two or more layers metallic plate is made to generate simultaneously
Metal that is clean and activating is exposed in plastic deformation, surface metal-layer rupture, so as to make to form metallurgical binding between plate face, rear
Interface cohesion is made further to strengthen and consolidate by thermal diffusion in continuous heat treatment process；Roll-bonding method can be divided into hot rolling and answer
Conjunction, cold rolling are compound, and technique is generally divided into three steps：Surface treatment, Rolling compund and heat treatment, the key of roll-bonding method technique
It is：Clean and have the interface of certain roughness, sufficiently large pressure and plastic deformation, suitable thermal diffusion.Process characteristic
It is that Rolling compund can carry out continuous production, product size is accurate, and the thickness of each constituent element is uniform, and performance is stablized, multiple suitable for rolling
The metal of conjunction is very more, and production cost is low, efficient, it is easy to accomplish large-scale industrial production；Method hot rolling method be by
Metal stock to be composite is heated to certain temperature, applies big drafts to it and carries out rolling deformation, while heat and power
Enable a kind of process that different metal is compound under effect；Relative to other combination process, the advantages of method hot rolling method, is:
Roll-force is smaller, to the of less demanding of milling train;Simple process and low cost;Interface cohesion is secured.Shortcoming is:Work as composition metal
During for active metal (such as Al, Ti), when heating, easily forms brittle intermetallic compound at interface；As do not kept the temperature during rolling
Measure, the length of clad metal sheet are restricted；The thickness of composite plate is difficult to control, and conformity of production and stability are poor, mostly suitable
Together in production thick composite board and slab；The compound interface oxidation in the operation of rolling of method hot rolling method is difficult to avoid, and is easily formed
Brittle metal chemical combination object, it is easy to weaken the interface bond strength of composite plate.Cold rolling composite algorithm, cold rolling combination process can combine
The process combinations such as cleaning, brush finish, heat treatment produce coiled composite wood production line into continuous-flow type, and production efficiency is high；Before compound, need
The surface being contaminated by method removing plank chemically or physically；A time large deformation rate is taken in cold rolling, to reach metal
Critical strain rate, realize double layer of metal atom between metallurgical binding, then by diffusion heat treatments realize metallic atom it
Between further diffusion, enhance interface binding power.Etc. the roller quick-coolings rolling compound such as roller diameters be to be opened first by the U.S. the 1950s
Begin research, propose with " surface treatment+cold rolling compound+diffusion annealing " three-step production process；The seventies, asymmetrical rolling started to use
In the production of composite plate, claim asymmetrical rolling composite algorithm, harder metal is corresponding with quick roll, softer metal and slow roll pair
Should, deformed area forms Cuo Zha areas, increases bond strength；Cold rolling is compound to belong to pressure welding, refer to metal recrystallization temperature with
The welding process of lower progress, in principle, all metals with enough ductility can obtain composite wood by cold rolling,
Bonding mechanism has " energy battier " and " superficial layer crack " two major class；In brief, most of gold in normal atmospheric environment
Metal surface is all covered by several layers of superficial layers, they can prevent the compound of metal when two surfaces contact with each other；So make two
It is metal rolled compound, it is proposed that make oxide skin(coating), search cap rock or pollution layer rupture three kinds of mechanism；For yield strength difference compared with
Two kinds of big metals, faying face near zone will will appear Relative sliding in the operation of rolling, therefore, the plasticity of both metals
Deformation is uneven, it means that two kinds of opposite superficial layers be assumed to be as same layer and rupture jointly be cannot
It sets up, is analyzed according to Continuum Mechanics, calculate each metallic surface exposure, it is clear that the exposure of the two is
It is differentiated, and bond strength then has a functional relation between surface plastic deformation rate and pressure, it is production low-intensity, high-plastic
Property, oxidizable, high-precision composite plate, are feasible using cold-rolling practice.
Presently, there are the problem of：
L) cold rolling is used to not formed the composite plate rolling of weld metal zone brittle intermetallic thing, can give full play to the high efficiency of milling train,
Working condition is good, and production specification is flexible, especially seems superior especially for relatively thin composite plate；By rolling technique and condition
Limitation, rolled parts are usually in the condition of high temperature under large deformation, so, combined material is poor because of different melting points, hardness (plasticity)
Different and thickness ratio size difference brings serious plate shape problem；In order to achieve the purpose that cold rolling, rolled using asynchronous rolling machine multiple
Though plywood achieves certain success, due to the difference (single driving machine) of upper and lower roll pressure, then upper and lower when milled sheet changes
Composite plate combined transformation is uneven, and thickness can be caused to exceed tolerance when serious；
2) principle of Rolling compund is substantially similar to pressure processing, and before not compound, two metals are on the surface due to mechanics
Performance is different and leads to the difference of plastic deformation rate, the difference of linear expansion coefficient, the defects of resulting in the residual stress of combined area,
This is rolled different from monometallic；Due to the difference of dissimilar metal mechanical property itself, deformability is also different, causes to become
The deformation extent of the small metal of shape drag is more than the deformation extent of the big metal of resistance of deformation, and therefore, the deformation in deformed area is not
Unanimously so that there are additional stresses, the big side of deformation extent in the composite board band after rolling to have additional compression, deformation
There is additional tensile stress in the small side of degree, make in contact in rolling, stress distribution is seriously uneven, and the composite plate produced must
Bent and very big residual stress of seriously floaing so is generated, causes rolling composite plate unqualified, is easily cracked.
The patent application " method that engagement type vacuum rolling prepares composite metal plate " of Publication No. CN10327842A is open
A kind of method that engagement type vacuum rolling prepares composite metal plate, this method composite billet are on the composite surface of substrate and cladding plate
The substrate bumps of mutual cooperation and cladding plate protrusion are processed respectively, and machining could obtain, and machining tooth is needed in advance to gold
Category is heat-treated, and otherwise machining generates tooth and has crackle, and this not only adds cost, nor it is compound to meet hot rolled plate
The technique of plate base；The surface of the tooth of mach generation can because and processing temperature it is high due to generate metallographic structure in metal surface and become
Change and have very big residual stress, such tooth surface can seriously affect the binding ability of composite plate multi-layer and base and combine strong
Degree, machines tooth, metal slabs size is restricted, and with current tooth machining center, cannot still be completed, is on metal slabs
It is not achievable, and this dentation is for the steel rolling process to be produced in batches, it is extremely difficult to it processes or even can not add
The intermeshing dentation of work；This composite billet engages on faying face, after rolling compared with the composite plate do not slotted, does not have
Deformation problem of non-uniform, the stress distribution efficiently solved in the recombination process of two kinds of different metals of yield strength is seriously uneven
Even situation necessarily leads to the bent and very big residual stress of serious wooden dipper, causes rolling composite plate unqualified after rolling；It is this with wedge angle
Dentation easily generates gap during metal fills shape, is known by theory analysis and experiment, and weight is easily generated in rolling
Skin and crackle have violated contact in rolling law of metal flow, while the product of this method rolling has very big residual stress,
Product quality cannot meet existing standard, therefore this technology can not be promoted in production so far, there will not be any society's effect
Benefit does not have operational feasibility.
In conclusion in dissimilar metal Rolling compund problem, all there is because different metal materials mechanical property difference it is big
The problem of caused composite plate combined strength bination is low, and recombination rate is low, serious warpage and big composite board internal residual stress.So make different
Kind metal interface, which combines, to be consolidated, and Mass accuracy is high, and variety range is wide, and recombination rate is high, and plate shape is good（Do not float song, and residual stress is small）,
Production efficiency height is composite metal plate production urgent problem to be solved, and at present, there is an urgent need for a kind of effective technologies to ask to solve these
Topic widelys popularize the production method of Rolling compund strip.Inventor is in patent applied for（License notification number
CN103736728B、CN 103736729B）On the basis of continue deformation to performance difference in larger metal rolled recombination process
Mechanism has carried out a large amount of theoretical experimental analysis, utilizes the phase interaction of constituent element in towing deformation theory qualitative analysis deformation process
With instructing to have done further research on dissimilar metal compound engagement face.
Invention content
The purpose of the present invention is to solve compound interface binding performance during composite plate production is bad, extension is inconsistent, floats
The technical issues of song, crackle, big residual stress, provides a kind of method of rolled metal complex plate strip.
The present invention is achieved through the following technical solutions：
A kind of 1. method of rolled metal complex plate strip, it is characterised in that its step is：
1）Raw material processing, chooses metal substrate and compound plate, and deformation of the resistance of deformation requirement more than substrate of the compound plate resists
Power clears up substrate and compound plate composite surface to see metallic matrix, by the big compound plate of resistance of deformation by being equipped with the two of corrugating roll
Roller corrugator rolls out the whole ripple compound plate on composite surface with corrugated surface, the ripple of the entirety ripple compound plate perpendicular to
Roll axial direction continuous uniform is distributed on the compound plate or the parallel corrugation of the whole ripple compound plate is axially consecutive in roll
It is evenly distributed on the compound plate, the cross sectional shape of the ripple is respectively arc-shaped, sinusoidal waveform or triangle, the ripple
Height for s, the width of ripple is t, and whole ripple compound plate thickness is h0, meet s/h0=(0.1~0.8), 2s/t=tan α, α=
（10~40) it spends；
2）Composite plate base clears up substrate and compound plate composite surface to see metallic matrix, substrate and compound plate is folded in order
Dress, is sent on forcing press and compresses soldering, obtain two-layer compound slab；
3）Composite plate is processed, and qualified composite plate blanks will be examined to be sent to compounding machine and offset and roll required thickness, answered
Plywood band；
4）Compounding machine institute rolling compound strip is directly obtained into finished product complex plate strip through sedan-chair.
Wherein, the method for a kind of rolled metal complex plate strip, it is characterised in that：For cold rolling, in step 2）、3）
In, the good substrate of closed assembly and the spot welding of compound plate periphery are obtained into composite plate blanks, compound cold-rolling mill is sent to and rolls required thickness.
Wherein, the method for a kind of rolled metal complex plate strip, it is characterised in that：Or for hot rolling, in step
2）、3）In, riser is added to be welded into one the good substrate of closed assembly and compound plate periphery, three holes are bored, and pipeline is inserted in blank end
Enter sealing welding Zhou Duan, being filled with nitrogen by two side ducts replaces original air, and check whether surrounding has the place of gas leakage,
Then two nozzles are sealed, is vacuumized from interstitial hole, and shut nozzle, obtains composite plate blanks, be heated to start rolling temperature, be sent to heat
Rolling compound machine rolls required thickness.
Invention advantage and good effect
Using the whole ripple cladding of composite plate blanks after roughing and the combination of base, it is different to solve dissimilar metal resistance of deformation
Cause the difference of metal plastic deformation, i.e. composite plate residual stress is big, bent plate shape problem of seriously floaing, high resistance of deformation metal layer
Difference is longitudinally extended because yield strength is different with low resistance of deformation metal layer, whole ripple compound plate compensates for this species diversity, finally
Cladding and base is made to roll rear length and match, wooden dipper is not bent for composite plate, and internal stress is eliminated, so as to solve compound plate and substrate because
Resistance of deformation is different, and low resistance of deformation metal layer extension is big, and high resistance of deformation metal layer extends the problem of small, obtains a kind of deformation
Uniformly, the complex plate strip that residual stress is small, bond strength is high；It is wide along roll axial direction distribution solution dissimilar metal of determining using cladding ripple
Base and cladding are spreaded the problem of inconsistent caused by exhibition is different, and the composite plate width direction Qu Wenti that floats has obtained significantly changing
It is kind；Meanwhile whole ripple compound plate increases the tractive force of substrate the binding force between substrate and compound plate.A kind of rolling gold
Belonging to the method for complex plate strip, roughing base is rolled by corrugation rolls mill milling, finish rolling by four-high mill, simple for process, and low energy consumption,
Composite quality, yield are high.
Description of the drawings：
Fig. 1 is composite board processing technique schematic diagram；
Fig. 2 is the composite plate blanks section with whole sine bellows compound plate 1；
Fig. 3 is the composite plate blanks section with whole 1 ˊ of circular arc ripple compound plate；
In figure：1st, 1 ˊ-compound plate；2nd, 2 ˊ-substrate.
Specific embodiment
The present invention provides a kind of method of rolled metal complex plate strip.With reference to the accompanying drawings and embodiments, to the present invention into
Row is further described.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, it is not used to limit
The fixed present invention.
Embodiment 1
Such as Fig. 1,2, Stainless Steel-Carbon Steel Clad Sheet is prepared using this method：
1）Raw material processing chooses s304 stainless steels as compound plate 1, chooses Q235 carbon steel sheets as substrate 2, stainless-steel sheet
Size is thickness 40mm × wide 1500mm × long 3000mm, and carbon steel board size is thickness 160mm × wide 1500mm × long 3000mm, is cleared up
Substrate 2 and 1 composite surface of compound plate are rolled out to see metallic matrix, by compound plate 1 by being equipped with two roller corrugators of corrugating roll
There is the whole ripple compound plate of corrugated surface, the ripple of the entirety ripple compound plate is perpendicular to roll axial direction continuous uniform on composite surface
It is distributed on the compound plate, the cross sectional shape of the ripple is sinusoidal waveform, and the height of the ripple is s, and the width of ripple is
T, whole ripple compound plate thickness are h0, meet s/h0=0.3,2s/t=tan α, α=22 degree；
2）Composite plate base clears up whole ripple compound plate 1 and substrate 2, by substrate 2 and compound plate 1 closed assembly in order, is sent to pressure
Soldering is compressed on power machine, first puts postwelding submerged-arc welding welded encapsulation with the carbon steel sheet of 15mm around the composite plate blanks of closed assembly,
Blank end bores three holes, and pipeline is inserted into sealing welding Zhou Duan, and being filled with nitrogen by two side ducts replaces original air,
And whether have the place of gas leakage around checking, two nozzles are then sealed, are vacuumized from interstitial hole, and shut nozzle, are obtained double
Layer composite billet, thickness 200mm；
3）Composite plate is processed, and qualified stainless steel and carbon steel composite plate base will be examined to be sent to heating furnace and be heated to 1250 DEG C, so
After be sent to compounding machine and offset and roll 6mm thickness, leveling obtains finished product complex plate strip.
Embodiment 2
Such as Fig. 3, copper coin-aluminium sheet composite plate is prepared using this method：
1）Raw material processing chooses T2 copper coins as 1 ˊ of compound plate, chooses LY1 aluminium sheets as 2 ˊ of substrate, aluminium sheet size is thickness
120mm × wide 800mm × long 3000mm, copper coin size are thickness 40mm × wide 800mm × long 3000mm, clear up 2 ˊ of substrate and compound plate
1 ˊ composite surfaces have to see metallic matrix, by 1 ˊ of compound plate by being equipped with two roller corrugators of corrugating roll and rolling out on composite surface
There is a whole ripple compound plate of corrugated surface, the parallel corrugation of the entirety ripple compound plate is distributed in described with roll axial direction continuous uniform
On compound plate, the cross sectional shape of the ripple is arc-shaped, and the height of the ripple is s, and the width of ripple is t, and whole ripple is answered
Plate thickness is h0, meet s/h0=0.5,2s/t=tan α, α=26 degree；
2）Composite plate base clears up whole 1 ˊ and 2 ˊ of substrate of ripple compound plate, and 2 ˊ of substrate and 1 ˊ of compound plate closed assemblies in order are sent
Spot welding periphery is compressed on toward forcing press, obtains two-layer compound base, thickness 160mm；
3）Composite plate is processed, and qualified Copper-Aluminum compound slab will be examined to be sent to cleaning equipment cleaning, be sent to compounding machine
It offsets and rolls 4mm thickness, leveling obtains finished product complex plate strip.
Whole ripple compound plate is combined with substrate after above-mentioned two embodiment utilizes roughing, solves dissimilar metal resistance of deformation
Difference causes the difference of metal plastic deformation, i.e. composite plate residual stress is big, bent plate shape problem of seriously floaing, high resistance of deformation gold
Belonging to layer with low resistance of deformation metal layer because yield strength difference is longitudinally extended difference, whole ripple compound plate compensates for this species diversity,
Finally cladding and base is made to roll rear length and match, wooden dipper is not bent for composite plate, and internal stress is eliminated, so as to solve compound plate and base
Plate is because of resistance of deformation difference, and low resistance of deformation metal layer extension is big, and high resistance of deformation metal layer extends the problem of small, obtains one kind
Deformation is uniform, and the complex plate strip that residual stress is small, bond strength is high, the serious warpage issues of composite board shape have obtained significantly changing
It is kind；Meanwhile whole ripple compound plate increases the tractive force of substrate the binding force between substrate and compound plate.
Claims (1)
- A kind of 1. method of rolled metal composite plate, it is characterised in that its step is：1）Raw material processing chooses metal substrate and compound plate, and the resistance of deformation requirement of the compound plate is more than the resistance of deformation of substrate, clearly Substrate and compound plate composite surface are managed to see metallic matrix, by the big compound plate of resistance of deformation by being equipped with two roller ripples of corrugating roll Mill milling goes out on composite surface to have the whole ripple compound plate of corrugated surface, and the ripple of the entirety ripple compound plate is perpendicular to roll mandrel It is distributed on the compound plate to continuous uniform or the parallel corrugation of the whole ripple compound plate is in roll axial direction continuous uniform point Cloth is on the compound plate, and the cross sectional shape of the ripple is respectively arc-shaped, sinusoidal waveform, triangle, the height of the ripple For s, the width of ripple is t, and whole ripple compound plate thickness is h0, meet s/h0=(0.1~0.8), 2s/t=tan α, α=（10~ 40) it spends；2）Composite plate base clears up substrate and compound plate composite surface to see metallic matrix, and substrate and compound plate closed assembly in order make Soldering is compressed on forcing press, obtains two-layer compound slab；Wherein, for cold rolling, two-layer compound slab peripheral point is welded base, Obtain cold rolling two-layer compound slab；Or for hot rolling, base will be vacuumized after the welded seal of two-layer compound slab periphery, obtained Hot rolling two-layer compound slab；3）Composite plate is processed, and qualified cold rolling two-layer compound slab will be examined to be sent to cold rolling compounding machine and offset and roll required thickness Degree, obtains cold rolling composite plate band；Alternatively, qualified hot rolling two-layer compound slab will be examined to be heated to hot rolling temperature by heating furnace Degree, is sent to the rolling method hot rolling strip of method hot rolling machine；4）Compounding machine institute rolling compound strip is directly obtained into finished product complex plate strip through sedan-chair.
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| CN108746204B (en) * | 2018-07-03 | 2019-07-26 | 太原理工大学 | A kind of continuous pack rolling method of corrugated interfaces ply-metal |
| CN110293130A (en) * | 2019-05-23 | 2019-10-01 | 太原理工大学 | A kind of method that oblique corrugation inhibits magnesium alloy plate edge to split |
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