CN107159868A - A kind of steel wear-resistant copper alloy composite board, its preparation facilities and preparation method - Google Patents
A kind of steel wear-resistant copper alloy composite board, its preparation facilities and preparation method Download PDFInfo
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- CN107159868A CN107159868A CN201710370844.9A CN201710370844A CN107159868A CN 107159868 A CN107159868 A CN 107159868A CN 201710370844 A CN201710370844 A CN 201710370844A CN 107159868 A CN107159868 A CN 107159868A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
- B22D11/004—Copper alloys
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/008—Continuous casting of metals, i.e. casting in indefinite lengths of clad ingots, i.e. the molten metal being cast against a continuous strip forming part of the cast product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/114—Treating the molten metal by using agitating or vibrating means
- B22D11/115—Treating the molten metal by using agitating or vibrating means by using magnetic fields
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0081—Casting in, on, or around objects which form part of the product pretreatment of the insert, e.g. for enhancing the bonding between insert and surrounding cast metal
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Abstract
The present invention provides a kind of steel wear-resistant copper alloy composite board, its preparation facilities and preparation method; the preparation facilities of the steel wear-resistant copper alloy composite board includes the surface treatment unit set gradually; protect gas sensing preheating unit; induction melting unit and semi-solid rolling recombiner unit; the oblong channel passed through for lower floor's steel plate is equipped with the surface treatment unit, protection gas sensing preheating unit and semi-solid rolling recombiner unit, the size that the surface treatment unit, protection gas sense the oblong channel in preheating unit is consistent with pending steel plate sectional dimension.The steel wear-resistant copper alloy composite board being prepared from present invention also offers the preparation method of steel wear-resistant copper alloy composite board and using this method.The present invention has the features such as continuous production, lumber recovery are high, defect is few, is a kind of process of efficient production high-quality composite board.
Description
Technical field
The present invention relates to composite board technology of preparing, more particularly to a kind of steel-wear-resistant copper alloy composite board, its preparation dress
Put and preparation method.
Background technology
Copper-lead (Cu-Pb) alloy bearing capacity is strong, is worked under high speed and high pressure with higher fatigue strength and wearability,
Thermal conductivity is high, and coefficient of friction is low, and wear and corrosion behavior is good, is preferable self-lubricating antifriction material.Steel-copper is constituted after being combined with steel
Metal composite, has had the wearability of Pot metal and the intensity of steel concurrently, therefore steel-Pot metal composite is development
One of leading bush material of new automobile.
The preparation method of current copper-steel composite board mainly has two kinds, method hot rolling method and liquid rolling compound method.The former distinguishes
Slab is obtained behind strand progress milling face, hot rolling to two kinds of metals, then polishes and cleans scale removal, finally carry out multiple tracks
Secondary hot rolling deformation obtains double-level-metal composite.The latter is preheated to a 600-700 DEG C of left side after being first surface-treated to steel plate
The copper melts melted are cast in upper surface of steel plate and are combined, obtain bi-metal composite panel by the right side.But existing technology
Be not suitable for the preparation of Pot metal-steel composite material：One side Pot metal is typical monotectic alloy, and element exists obvious
Density contrast, be also easy to produce serious gravity segregation during conventional coagulation；Easily aoxidize, heat under another aspect copper and steel high temperature
When copper and the surface of steel can generate substantial amounts of oxide skin, have a strong impact on the mechanical property of composite effect and composite.
The content of the invention
It is an object of the present invention to which the problems existed for existing copper-steel composite board production method, are proposed a kind of
The preparation facilities of steel-wear-resistant copper alloy composite board, the apparatus structure is reasonable, compact, using steel-wear-resistant copper alloy of its preparation
Composite board can eliminate the gravity segregation of Pot metal and the problem of the composite quality caused by surface oxidation is poor.
To achieve the above object, the technical solution adopted by the present invention is：A kind of preparation of steel-wear-resistant copper alloy composite board
Device, including the surface treatment unit set gradually, protection gas sensing preheating unit, induction melting unit and semi-solid rolling are multiple
Close to be equipped with unit, the surface treatment unit, protection gas sensing preheating unit and semi-solid rolling recombiner unit and supply lower floor
The oblong channel that steel plate is passed through, the surface treatment unit, protection gas sense the size of the oblong channel in preheating unit
It is consistent with pending steel plate sectional dimension；
The surface treatment unit includes upper surface sanding apparatus, lower surface sanding apparatus, cleaning device and drying device；
The upper surface sanding apparatus, cleaning device and drying device are successively set on above oblong channel, the lower surface polishing
Device is arranged on below oblong channel and is engaged with upper surface sanding apparatus；
The protection gas sensing preheating unit includes vacuum (-tight) housing, preheating radio-frequency induction coil, high frequency magnetic field power supply and protection
Gas tank, the protective gas tank is connected with vacuum (-tight) housing, and the preheating radio-frequency induction coil is arranged in vacuum (-tight) housing, the high frequency
Magnetic field power supply is located in the preheating radio-frequency induction coil of vacuum (-tight) housing with preheating radio-frequency induction coil Electricity Federation, the oblong channel
In；
The induction melting unit includes high-frequency induction heating apparatus, and the induction melting unit bottom, which is provided with, to be used to control
The closure switch of liquid outlet folding, the closure switch are arranged on above oblong channel；
The semi-solid rolling recombiner unit includes normalizing radio-frequency induction coil, the height powered for normalizing radio-frequency induction coil
Frequency induction heating power and two rolls are equipped with up and down, described two rolls are inside synchronous roll for hot-rolling, the roll
Provided with cooling water channel, described two rolls are separately positioned on both sides above and below oblong channel；The oblong channel is passing through two
It is located in after individual roll in normalizing radio-frequency induction coil.
Further, the vacuum (-tight) housing, which is worn, is provided with sealing ring at the opening of oblong channel.
Further, the upper surface sanding apparatus, lower surface sanding apparatus are that surface roughness is Ra100-200 μm
Diamond disk；The drying device includes drying wheel.
Another object of the present invention also discloses a kind of preparation method of steel-wear-resistant copper alloy composite board, using upper
The preparation facilities of steel-wear-resistant copper alloy composite board is stated, the preparation method of the steel-wear-resistant copper alloy composite board is including following
Step：
Step 1：Select Pot metal and steel plate according to actual operation requirements, determine steel-wear-resistant copper alloy composite plate material,
Thickness and Thickness ratio, steel plate, using cleaning fluid progress deoxidation pretreatment, are dried using preceding after being rinsed through clear water；
Step 2：The closure switch of the lower section of induction melting unit are closed, Pot metal is added in induction melting unit,
Electromagnetic induction melting is carried out to Pot metal；
Step 3：Pot metal is incubated after Pot metal fusing by adjusting the power of induction melting unit；
Step 4：Cooling water flow in the rotating speed and roll of roll is adjusted, (steel-wear-resistant copper alloy is combined according to target product
Sheet material) thickness adjusts roll gap between two rolls, roll gap distance is equal to target product thickness, roll enters the standby shape of dallying
State；
Step 5：Steel plate is pushed to the oblong channel entrance put in surface treatment unit, upper following table is carried out successively to steel plate
Face polishing, upper surface cleaning, upper surface drying process；
Step 6：Steel plate after drying process pushes to protection gas sensing preheating unit, and high frequency sense is carried out under protective atmosphere
It should preheat；
Step 7：When steel plate after preheating is sent to below induction melting unit, the closure for opening induction melting unit is opened
Close, Pot metal is uniformly spread into surface of steel plate, Pot metal contacts with steel plate and is rapidly cooled to semi-solid state；Pass through table
Face processing unit and preheating unit are polished steel plate, cleaned and protected gas sensing heating to pre-process, it is ensured that steel plate it is compound
Interface does not have oxide layer presence；
Step 8：During steel plate continues to push forward, Pot metal is set to keep semi solid slurry state；
Step 9：Keep semi solid slurry state semisolid Pot metal and steel plate enter roll intracavitary carry out semisolid-
Solid-state is rolled, and steel-wear-resistant copper alloy composite board is made.
Step 10：Sensing heating normalizing, eliminates stress, steel-wear-resistant copper alloy composite board is made.
Further, step 1 light plate material includes but is not limited to 304 stainless steels, Q235 steel or No. 10 steel；The steel plate
Thickness is 2-50mm；Lead content is 15-45%wt in the Pot metal；The deoxidation pretreatment etch time is 1-2 points
Clock.
Further, Pot metal holding temperature is 1100-1300 DEG C in step 3.
Further, the time is polished in step 5 for 0.5-2.5 minutes；Cleaning uses concentration 10%wt ethanol solution, clearly
Wash the lapping rejects of upper surface of steel plate off；Dry and use drying wheel, the dry wheel surface uses absorbent material, 80-90 DEG C of temperature,
Drying time 0.5-2.5 minutes.
Further, step 6 preheating temperature is 800-900 DEG C, and protective gas is argon gas and/or nitrogen, and flow is 5-
15L/min, protective gas can prevent warm light plate surface from aoxidizing.Preheating device is high-frequency induction heating, is used
Energization copper solenoid.The magnetic induction intensity that energization spool is produced：
Wherein, n pounds number, β for unit length2And β1For solenoid left end and the angle of right-hand member line and Z axis.Magnetic flux
Ф is the product of the sectional area of magnetic flux and heating part.
Φ=Bz·S
Therefore the induced-current produced in heated ceramic-metal composite:
Wherein f electrical currents frequency, R is heating part resistance, can by ceramic-metal composite part height l, cut
Area s and electricalresistivityρ try to achieve.
Therefore the thermal effect produced inside this part metals ceramic composite should be：
Q=I2Rt (4)
Thus can the heat that is produced in steel plate of the place's of calculating hot-wire coil, this heat can cause the temperature change of steel plate, from
And reach rapidly pre-warming effect：
When applying high frequency magnetic field, electromagetic field osmosis depth is determined by power frequency, can be calculated by following formula：
In formula, σ is electrical conductivity, and μ is viscosity coefficient, and f is field frequency.
Therefore the electric current of high-frequency induction heating, frequency can be calculated according to actual conditions using formula 4-6, and sensing adds
Hot frequency is about between 10000-20000Hz, electric current 200-500A.
Further, in step 7, copper alloy melt is cast to after preheating steel plate, is occurred after the two contact in interface
Heat exchange, as shown in Figure 1.
The hot-fluid of copper alloy liquid and steel plate is represented by：
qe=he(TC-TL)
(7)
In formula, qeThe hot-fluid of steel plate is passed to for copper alloy liquid；heFor copper alloy liquid and the convection transfer rate of steel plate；TC
For copper alloy liquid pouring temperature；TLFor copper alloy liquid liquidus temperature.
Convection transfer rate heIt can be calculated and obtained by means of the convection heat transfer' heat-transfer by convection formula of forced fluid vertical plane：
In formula, heFor the convection transfer rate of copper alloy liquid and green shell；ρ is copper alloy density；C is copper alloy thermal capacitance；V is
Solidification front copper alloy liquid movement velocity；η is copper alloy liquid viscosity；λ is copper alloy liquid thermal conductivity factor；L is contact length.
It is possible thereby to the temperature change after copper alloy melt is contacted with preheating steel plate be extrapolated, by controlling pouring for copper alloy
Temperature is noted to control the solid-state rate of copper alloy after contact.
Further, solid-state rate is 40-70% in semi solid slurry state in step 8；Push process is 10-30s, is copper
Metal and steel plate provide sufficient diffusion time.
Further, in step 9 controlled rolling percentage pass reduction be 30-60%, roller diameter 300mm, roll rotational speed with
Technological parameter is related.It is made up of due to being connected with cooling water inside roll, therefore conducting heat herein two parts, as shown in Figure 2.
Assuming that the copper alloy layer internal temperature gradient of semisolid is to be in close contact between 0, and semi solid copper alloy and roll wall,
Air-gap-free.Calculation of Heat Transfer then between semi solid copper alloy and roll wall is consistent with step 7.
In roll wall there is the temperature difference in outside, and due to the effect of thermograde, heat can be lateral cold from semi solid copper alloy one
But water side is transmitted, and the heat flow density of the outer pars intramuralis of roll can be expressed as under one-dimensional stable state：
In formula, qmFor the heat flow density of pars intramuralis outside roll；δ is the thickness of roll wall；T1For roll wall internal surface temperature；
T2For roll wall hull-skin temperature；λmThe thermal conductivity factor of roll wall, numerical value can be determined λ according to below equationm=11.45+
0.0106T,
Roll wall is forced-convection heat transfer with cooling water interface heat transfer, and the hot-fluid taken away by cooling water convective motion is calculated：
qW=hW(T1-TW)
In formula, qWThe hot-fluid taken away for cooling water convective motion；hWFor cooling water and the convection transfer rate of roll wall；T1
For roll wall internal surface temperature；TWFor cooling water mean temperature.
General roll for hot-rolling uses 60CrMnMo alloy wrought steels, can find the coefficients such as its specific heat capacity, heat convection, according to
Upper formula, can calculate roll cooling water amount for 60-240Lh-1It is about 1-5 revs/min thus to extrapolate roll rotational speed scope
Clock, the transfer rate of composite board is calculated as 0.6-3m/min by V=2 π rn.
Further, for step 10, the principle of sensing heating is consistent with the calculating process in step 6.Electromagnetic induction adds
Heat can reduce internal stress produced in laminar composite preparation process, reduce the deformation extent of composite.Online high frequency
When sensing normalizing, because the relative permeability of steel is 8000, the relative permeability of copper is only 1, therefore in same induction frequencies
When, much bigger than copper of Joule heat produced by the steel of unit mass, it is ensured that steel eliminates the hardness increase caused by quenching effect
And copper will not also melt, so as to prepare excellent stratiform bearing shell composite.But the electromagnetic frequency of normalizing should not mistake
Greatly, it should be 7000-10000Hz.
Another object of the present invention also discloses a kind of steel-wear-resistant copper alloy composite board, using above-mentioned steel-wear-resisting copper
The preparation method of Alloy composite board is prepared from.
A kind of preparation facilities science of steel-wear-resistant copper alloy composite board of the present invention, rationally, steel-wear-resistant copper alloy is combined
The preparation method of sheet material is simple, easy, compared with prior art with advantages below：
(1) prevent surface of steel plate from aoxidizing, composite effect is good.The present invention carry out semisolid-solid-state Rolling compund before, according to
It is secondary upper surface of steel plate is polished, pickling, cleaning treatment, and carry out under protective atmosphere high-frequency induction heating, it is on the one hand anti-
Oxide layer only is produced on warm light plate surface, on the other hand preheating temperature can be risen to 800-900 DEG C, composite plate is improved
Material Interface composites effect.
(2) Pot metal gravity segregation is suppressed.The present invention carries out melting, fusion process using induction melting to Pot metal
Middle electromagnetic force has stirring action to melt, promotes element to be uniformly distributed.Pot metal is in semi-solid state after being contacted with steel plate,
And in the presence of roll rapid solidification, can eliminate the segregation caused by density and different melting points, improve Pot metal coating
Quality.
(3) strong applicability, has a wide range of application.The present invention realizes that double-level-metal is combined using semi-solid rolling method, copper-lead
Lead content is 15-45%wt, optional 304 stainless steel of substrate material, Q235 steel, No. 10 steel etc. in alloy, thickness range 2-50mm,
It can also be used for preparing other kinds of high-test metal composite board, such as aluminium-steel, copper-steel, Solder for Al-Cu Joint Welding etc..
Brief description of the drawings
Fig. 1 is steel plate and the one-dimensional simplification figure of copper alloy liquid interface Temperature Distribution, and abscissa is distance, and ordinate is temperature
Degree.
Fig. 2 is semi solid copper alloy and Temperature Distribution one-dimensional simplification figure in interface after roll contact, and abscissa is distance, is indulged
Coordinate is temperature.
Fig. 3 is the preparation facilities structural representation of steel of the present invention-wear-resistant copper alloy composite board.
Fig. 4 is steel-wear-resistant copper alloy composite board microscopic appearance prepared by conventional solid-liquid method.
Fig. 5 is the microscopic appearance of 1 steel of embodiment-wear-resistant copper alloy composite board.
Drawing reference numeral：1- protective gas tanks；2- drying devices；3- cleaning devices；4- upper surfaces sanding apparatus；5- steel plates；
6- lower surface sanding apparatus；7- high frequency magnetic field power supplys；8- vacuum (-tight) housings；9- closure switch；10- Pot metals；11- high-frequency inductions add
Thermal；12- rolls；13- is incubated running channel；14- has solidified clad；15- steel-wear-resistant copper alloy composite board；16- high frequency senses
Answer heating power supply；17- normalizing radio-frequency induction coils；18- preheats radio-frequency induction coil；19- sealing rings.
Embodiment
The present invention is further described with reference to embodiments：
Embodiment 1
Present embodiment discloses a kind of preparation facilities of steel-wear-resistant copper alloy composite board, as shown in figure 3, including successively
The surface treatment unit of setting, protection gas sensing preheating unit, induction melting unit and semi-solid rolling recombiner unit, the table
Be equipped with face processing unit, protection gas sensing preheating unit and semi-solid rolling recombiner unit for lower floor steel plate pass through it is rectangular
Shape passage, the size that the surface treatment unit, protection gas sense the oblong channel in preheating unit is cut with pending steel plate
Face size is consistent；
The surface treatment unit includes upper surface sanding apparatus 4, lower surface sanding apparatus 6, cleaning device 3 and dries dress
Put 2；The upper surface sanding apparatus 4, cleaning device 3 and drying device 2 are successively set on above oblong channel, the following table
Face sanding apparatus 6 is arranged on below oblong channel and is engaged with upper surface sanding apparatus 4；The upper surface sanding apparatus
4th, lower surface sanding apparatus 6 is the diamond disk that surface roughness is Ra100-200 μm；The drying device includes drying
Wheel.
The protection gas sensing preheating unit includes vacuum (-tight) housing 8, preheating radio-frequency induction coil 18, the and of high frequency magnetic field power supply 7
Protective gas tank 1, the protective gas tank 1 is connected with vacuum (-tight) housing 8, and the preheating radio-frequency induction coil 18 is arranged on vacuum (-tight) housing 1
Interior, the high frequency magnetic field power supply 7 is located in the pre- of vacuum (-tight) housing 8 with preheating radio-frequency induction coil 18 Electricity Federation, the oblong channel
In hot radio-frequency induction coil 18；The vacuum (-tight) housing 8, which is worn, is provided with sealing ring 19 at the opening of oblong channel.
The induction melting unit includes high-frequency induction heating apparatus 11, and the induction melting unit bottom, which is provided with, to be used to control
The closure switch 9 of liquid outlet folding processed, the closure switch 9 are arranged on above oblong channel, and the closure switch 9 are by protecting
Warm running channel 13 is connected with oblong channel.
The semi-solid rolling recombiner unit includes normalizing radio-frequency induction coil 17, powered for normalizing radio-frequency induction coil 17
High-frequency induction heating power 16 and be equipped with two rolls 12 up and down, described two rolls 12 are synchronous roll for hot-rolling, institute
State the inside of roll 12 and be provided with cooling water channel, described two rolls 12 are separately positioned on both sides above and below oblong channel；It is described rectangular
Shape passage is being located in normalizing radio-frequency induction coil 17 after two rolls.
The present embodiment also discloses the method for preparing steel-wear-resistant copper alloy composite board using said apparatus, with Cu-30Pb
Exemplified by No. 45 steel, thickness 4mm (steel plate 2mm, copper alloy 2mm) composite board is prepared.This method comprises the following steps：
Step 1：Steel plate 5, using cleaning fluid progress deoxidation pretreatment, 2 minutes etch time, is rinsed using preceding through clear water
After dry, 100 DEG C of drying temperature, 20 minutes time；
Step 2：The closure switch of the lower section of induction melting unit are closed, raw material is put into Cu-30%Pb ratios, electricity is opened
Source carries out electromagnetic induction melting to Pot metal；
Step 3：The power of regulation induction melting unit makes melt be incubated to 1200 DEG C after Pot metal 10 melts；
Step 4：Cooling water flow 120L/h in 3 revs/min of the speed and roll of Casting Roller is adjusted, casting and rolling machine enters idle running
Holding state；
Step 5：Steel plate is pushed to the oblong channel entrance put in surface treatment unit, burnishing part is carried out to upper and lower surface
Reason, upper surface is the diamond disk of 100 μm of roughness Ra, is polished 1 minute time；Cleaned afterwards using 10% ethanol solution
Fall the lapping rejects of upper surface of steel plate；Processing is dried through drying wheel, dries wheel surface and uses absorbent material, 90 DEG C of temperature is dried
The dry 1 minute time；
Step 6：Steel plate after drying process pushes to protection gas sensing preheating unit, and high-frequency induction is carried out under argon gas and is added
Heat, gas flow is 10L/min, induction frequencies 12000Hz, induced-current 200A, steel plate is preheated to 900 DEG C；
Step 7：When steel plate after preheating is sent to below induction melting unit, the closure for opening induction melting unit is opened
Close, Cu-30%Pb is uniformly spread into surface of steel plate by being incubated running channel 13, Pot metal thick layer is protected by coutroi velocity
Hold in 4mm, copper alloy is contacted with steel plate can be rapidly cooled to semi-solid state；
Step 8：During steel plate continues to push forward, Pot metal is set to keep semi solid slurry state, solid-state rate
About 40%, transmit process 10s, are that Pot metal and steel plate provide sufficient diffusion time；
Step 9：Semisolid Pot metal enters roll intracavitary with steel plate and carries out semisolid-solid-state rolling, controlled rolling road
Secondary reduction ratio is 50%；
Step 10：Sensing heating normalizing, field frequency 8000Hz eliminates stress, steel-wear-resistant copper alloy composite board is made
15, steel-upper strata of wear-resistant copper alloy composite board 15 is to have solidified clad 14.
Conventional solid-liquid method is directly by high-temperature copper alloy melt cast to steel plate, and the temperature distributing disproportionation of contact surface is even, temperature
Difference causes steel plate deformed, and part copper alloy and steel plate combination be not good, and interface has the casting flaws such as stomata, cracking.Conventional liquid
Gu method takes macroscopic interface to be observed with reference to all right position, its result as shown in figure 4, amplification after micro interface exist it is bright
Aobvious oxide layer.
The present embodiment method is in the case of identical pouring temperature, and interface is well combined, and without obvious stomata, the casting such as is mingled with
Temperature is kept always substantially when making defect, copper alloy melt and steel plate contact, and product is more straight.The present embodiment steel-wear-resisting copper is closed
The microscopic appearance of golden composite board is as shown in figure 5, the cooling condition base of steel-wear-resistant copper alloy composite board preparation process median surface
This holding is constant, therefore example interface is straight good, has used protection gas to sense preheating method, interface additionally, due to the present embodiment
Non-oxidation phenomenon.
Embodiment 2
Present embodiment discloses a kind of preparation method of steel-wear-resistant copper alloy composite board, using steel described in embodiment 1-
The preparation facilities of wear-resistant copper alloy composite board.
By taking Cu-20Pb and No. 45 steel as an example, thickness 9mm (steel plate 3mm, copper alloy 6mm) composite board is prepared.Steel-resistance to
The preparation method of mill copper alloy composite board comprises the following steps：
Step 1：Steel plate uses cleaning fluid progress deoxidation pretreatment, 2 minutes etch time, after being rinsed through clear water using preceding
Drying, 100 DEG C of drying temperature, 20 minutes time；
Step 2：The closure switch of the lower section of induction melting unit are closed, raw material is put into Cu-20%Pb ratios, electricity is opened
Source carries out electromagnetic induction melting to Pot metal；
Step 3：The power of regulation induction melting unit makes melt be incubated to 1150 DEG C after copper alloy fusing；
Step 4：Cooling water flow 180L/h in 1.5 revs/min of the speed and roll of Casting Roller is adjusted, casting and rolling machine enters empty
Turn holding state；
Step 5：Steel plate is pushed to the oblong channel entrance put in surface treatment unit, burnishing part is carried out to upper and lower surface
Reason, upper surface is the diamond disk of 100 μm of roughness Ra, is polished 1.5 minutes time；It is clear using 10% ethanol solution afterwards
Wash the lapping rejects of upper surface of steel plate off；Processing is dried through drying wheel, is dried wheel surface and is used absorbent material, 90 DEG C of temperature,
Drying time 1.5 minutes；
Step 6：Steel plate after drying process pushes to protection gas sensing preheating unit, and high-frequency induction is carried out under argon gas and is added
Heat, gas flow is 10L/min, induction frequencies 12000Hz, induced-current 250A, steel plate is preheated to 900 DEG C；
Step 7：When steel plate after preheating is sent to below induction melting unit, the closure for opening induction melting unit is opened
Close, Cu-20%Pb is uniformly spread into surface of steel plate, Pot metal thick layer is maintained at 10mm by coutroi velocity, copper is closed
Gold is contacted with steel plate can be rapidly cooled to semi-solid state；
Step 8：During steel plate continues to push forward, Pot metal is set to keep semi solid slurry state, solid-state rate
About 50%, transmit process 15s, are that Pot metal and steel plate provide sufficient diffusion time；
Step 9：Semisolid Pot metal enters roll intracavitary with steel plate and carries out semisolid-solid-state rolling, controlled rolling road
Secondary reduction ratio is 40%, and steel-wear-resistant copper alloy composite board is made；
Step 10：Sensing heating normalizing, field frequency 8400Hz eliminates stress, steel-wear-resistant copper alloy composite plate is made
Material.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. the preparation facilities of a kind of steel-wear-resistant copper alloy composite board, it is characterised in that including the surface treatment list set gradually
Member, protection gas sensing preheating unit, induction melting unit and semi-solid rolling recombiner unit, the surface treatment unit, protection
Gas senses the oblong channel for being equipped with and being passed through for lower floor's steel plate in preheating unit and semi-solid rolling recombiner unit, the surface
The size that processing unit, protection gas sense the oblong channel in preheating unit is consistent with pending steel plate sectional dimension；
The surface treatment unit includes upper surface sanding apparatus, lower surface sanding apparatus, cleaning device and drying device；It is described
Upper surface sanding apparatus, cleaning device and drying device are successively set on above oblong channel, the lower surface sanding apparatus
It is arranged on below oblong channel and is engaged with upper surface sanding apparatus；
The protection gas sensing preheating unit includes vacuum (-tight) housing, preheating radio-frequency induction coil, high frequency magnetic field power supply and protective gas
Tank, the protective gas tank is connected with vacuum (-tight) housing, and the preheating radio-frequency induction coil is arranged in vacuum (-tight) housing, the high frequency magnetic field
Power supply is located in the preheating radio-frequency induction coil of vacuum (-tight) housing with preheating radio-frequency induction coil Electricity Federation, the oblong channel；
The induction melting unit includes high-frequency induction heating apparatus, and the induction melting unit bottom, which is provided with, to be used to control out liquid
The closure switch of mouth folding, the closure switch are arranged on above oblong channel；
The semi-solid rolling recombiner unit includes normalizing radio-frequency induction coil, the high frequency sense powered for normalizing radio-frequency induction coil
Answer heating power supply and be equipped with two rolls up and down, described two rolls are to be provided with inside synchronous roll for hot-rolling, the roll
Cooling water channel, described two rolls are separately positioned on both sides above and below oblong channel；The oblong channel is rolled by two
It is located in after roller in normalizing radio-frequency induction coil.
2. the preparation facilities of steel-wear-resistant copper alloy composite board according to claim 1, it is characterised in that the vacuum (-tight) housing
Wear and sealing ring is provided with the opening of oblong channel.
3. the preparation facilities of steel-wear-resistant copper alloy composite board according to claim 1, it is characterised in that the upper surface
Sanding apparatus, lower surface sanding apparatus are the diamond disk that surface roughness is Ra100-200 μm；The drying device includes
Drying wheel.
4. the preparation method of a kind of steel-wear-resistant copper alloy composite board, it is characterised in that comprise the following steps：
Step 1：Pot metal and steel plate are selected according to actual operation requirements, steel-wear-resistant copper alloy composite plate material, thickness is determined
And Thickness ratio, steel plate using cleaning fluid carries out deoxidation pretreatment using preceding, dried after being rinsed through clear water；
Step 2：The closure switch of the lower section of induction melting unit are closed, Pot metal are added in induction melting unit, to copper
Metal carries out electromagnetic induction melting；
Step 3：Pot metal is incubated after Pot metal fusing by adjusting the power of induction melting unit；
Step 4：Cooling water flow in the rotating speed and roll of roll is adjusted, the roller between two rolls is adjusted according to target product thickness
Seam, roll enters idle running holding state；
Step 5：Steel plate is pushed to the oblong channel entrance put in surface treatment unit, upper and lower surface is carried out successively to steel plate and beats
Mill, upper surface cleaning, upper surface drying process；
Step 6：Steel plate after drying process pushes to protection gas sensing preheating unit, high-frequency induction is carried out under protective atmosphere pre-
Heat；
Step 7：When steel plate after preheating is sent to below induction melting unit, the closure switch of induction melting unit are opened, are made
Pot metal uniformly spreads into surface of steel plate, and Pot metal contacts with steel plate and is rapidly cooled to semi-solid state；
Step 8：During steel plate continues to push forward, Pot metal is set to keep semi solid slurry state；
Step 9：The semisolid Pot metal and steel plate for keeping semi solid slurry state enter roll intracavitary and carry out semisolid-solid-state
Rolling.
Step 10：Sensing heating normalizing, eliminates stress, steel-wear-resistant copper alloy composite board is made.
5. the preparation method of steel-wear-resistant copper alloy composite board according to claim 4, it is characterised in that step 1 light plate
Material is 304 stainless steels, Q235 steel or No. 10 steel；The steel plate thickness is 2-50mm；Lead content is 15- in the Pot metal
45%wt；The deoxidation pretreatment etch time is 1-2 minutes.
6. the preparation method of steel-wear-resistant copper alloy composite board according to claim 4, it is characterised in that copper-lead in step 3
Alloy holding temperature is 1100-1300 DEG C.
7. the preparation method of steel-wear-resistant copper alloy composite board according to claim 4, it is characterised in that polished in step 5
Time is 0.5-2.5 minutes；Cleaning washes the lapping rejects of upper surface of steel plate using concentration 10%wt ethanol solution；Dry
Using drying wheel, the dry wheel surface uses absorbent material, 80-90 DEG C of temperature, drying time 0.5-2.5 minutes.
8. the preparation method of steel-wear-resistant copper alloy composite board according to claim 4, it is characterised in that step 6 preheats temperature
Spend for 800-900 DEG C, protective gas is argon gas and/or nitrogen, and flow is 5-15L/min, and protective gas can prevent warm
Light plate surface is aoxidized.
9. the preparation method of steel-wear-resistant copper alloy composite board according to claim 4, it is characterised in that half is solid in step 8
Solid-state rate is 40-70% in state slurry form；Push process is 10-30s, when providing sufficient diffusion for Pot metal and steel plate
Between；Controlled rolling percentage pass reduction is 30-60%, 1-5 revs/min of roll rotational speed in step 9.
10. a kind of steel-wear-resistant copper alloy composite board, it is characterised in that steel described in use claim 4-9 any one-resistance to
The preparation method of mill copper alloy composite board is prepared from.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09323104A (en) * | 1996-06-06 | 1997-12-16 | Gonda Kinzoku Kogyo Kk | Manufacture of copper bus bar, copper bar or the like and device therefor |
| CN101244430A (en) * | 2008-03-24 | 2008-08-20 | 北京科技大学 | Composite technique for rolling semi-solid state copper-lead bearing alloy/steel bi-metal |
| CN101298082A (en) * | 2008-06-20 | 2008-11-05 | 中国船舶重工集团公司第十二研究所 | Continuous casting heat composite apparatus and method for preparing copper lead alloy-steel shaft bushing material |
| CN101787484A (en) * | 2010-01-26 | 2010-07-28 | 武汉钢铁(集团)公司 | Low-silicon cold rolled precision strip steel for copper-lead bearing steel back and production method thereof |
| CN101954474A (en) * | 2010-08-06 | 2011-01-26 | 西安理工大学 | Method for preparing copper-lead alloy/steel bimetal laminated composite material |
| CN203459435U (en) * | 2013-07-25 | 2014-03-05 | 北京蒂本斯工程技术有限公司 | Titanium belt composite rolling pre-processing device |
| CN104630549A (en) * | 2015-01-27 | 2015-05-20 | 苏州金仓合金新材料有限公司 | Continuously cast and rolled environment-friendly lead-free novel alloy rod and preparation method thereof |
| CN105195703A (en) * | 2015-09-23 | 2015-12-30 | 浙江南兴轴瓦有限公司 | Process for producing novel steel-base copper alloy bi-metal synthetic material |
-
2017
- 2017-05-24 CN CN201710370844.9A patent/CN107159868B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09323104A (en) * | 1996-06-06 | 1997-12-16 | Gonda Kinzoku Kogyo Kk | Manufacture of copper bus bar, copper bar or the like and device therefor |
| CN101244430A (en) * | 2008-03-24 | 2008-08-20 | 北京科技大学 | Composite technique for rolling semi-solid state copper-lead bearing alloy/steel bi-metal |
| CN101298082A (en) * | 2008-06-20 | 2008-11-05 | 中国船舶重工集团公司第十二研究所 | Continuous casting heat composite apparatus and method for preparing copper lead alloy-steel shaft bushing material |
| CN101787484A (en) * | 2010-01-26 | 2010-07-28 | 武汉钢铁(集团)公司 | Low-silicon cold rolled precision strip steel for copper-lead bearing steel back and production method thereof |
| CN101954474A (en) * | 2010-08-06 | 2011-01-26 | 西安理工大学 | Method for preparing copper-lead alloy/steel bimetal laminated composite material |
| CN203459435U (en) * | 2013-07-25 | 2014-03-05 | 北京蒂本斯工程技术有限公司 | Titanium belt composite rolling pre-processing device |
| CN104630549A (en) * | 2015-01-27 | 2015-05-20 | 苏州金仓合金新材料有限公司 | Continuously cast and rolled environment-friendly lead-free novel alloy rod and preparation method thereof |
| CN105195703A (en) * | 2015-09-23 | 2015-12-30 | 浙江南兴轴瓦有限公司 | Process for producing novel steel-base copper alloy bi-metal synthetic material |
Cited By (17)
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|---|---|---|---|---|
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