CN108220670A - A kind of Cu-Ni-Si-Mg alloy sheet strips casting-rolling method and casting and rolling installation - Google Patents
A kind of Cu-Ni-Si-Mg alloy sheet strips casting-rolling method and casting and rolling installation Download PDFInfo
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- CN108220670A CN108220670A CN201810028027.XA CN201810028027A CN108220670A CN 108220670 A CN108220670 A CN 108220670A CN 201810028027 A CN201810028027 A CN 201810028027A CN 108220670 A CN108220670 A CN 108220670A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
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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
- B21B1/46—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 metal immediately subsequent to continuous casting
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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
- B22D11/06—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
- B22D11/16—Controlling or regulating processes or operations
- B22D11/20—Controlling or regulating processes or operations for removing cast stock
- B22D11/201—Controlling or regulating processes or operations for removing cast stock responsive to molten metal level or slag level
- B22D11/202—Controlling or regulating processes or operations for removing cast stock responsive to molten metal level or slag level by measuring temperature
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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Abstract
The invention discloses a kind of Cu Ni Si Mg alloy sheet strips casting-rolling methods and casting and rolling installations, belong to non-ferrous metals processing field；According to mass ratio Cu：Ni：Si：Mg=94‑97：2‑5：0.5‑0.8：0.07 0.14, prepare raw material, under vacuum melting under cryogenic, be quickly cooled down rolling；The roll of equipment is provided with closed circulation water route, and roll is connected with roll gap spacing control hydraulic device, infrared radiation thermometer is set, and be provided with multigroup high pressure gas nozzle, high pressure centrifugal wind turbine and oil-to-water heat exchanger under roll；The oxidation of Cu Ni Si Mg alloys in casting cracking caused by the present invention can effectively prevent oxidation and strip casting process；Effectively Ni during inhibition equilibrium freezing2Si precipitated phases are precipitated, and significantly improve the quality and performance of Cu Ni Si Mg alloy sheet strips.
Description
Technical field
The invention belongs to the processing and forming fields of non-ferrous metal thin strip more particularly to a kind of high property copper alloy strip to cast
Milling process method and its casting and rolling installation.
Background technology
Copper alloy is the major metal structural material of the industries engineer application such as electronics, electric power, in national defense and military, electronic communication
The key areas such as technology have played huge effect, and with the fast development of the industries such as electronics, electric power, and industry requirement is a large amount of
Copper alloy with high strength and high conductivity strip product.Cu-Ni-Si alloy is a kind of more typical ageing strengthening type alloy, has both height
Intensity and highly conductive characteristic, have been increasingly becoming the focus of high-strength high-conductivity copper alloy research.
The conventional production methods of Cu-Ni-Si alloy strip blank are as follows at present：Dispensing and melting → semi-continuous casting
" slab ingot " → be sawed into processes such as section → heating → hot rolling → solution treatment.Obvious this technical method complex procedures, preparing needs
Heating for multiple times is wanted, bigger to material scaling loss, energy consumption is also bigger, and production efficiency is than relatively low.
In addition, this traditional handicraft is in the Plate and strip of copper alloys in the different in nature section of production, it is also necessary in original technique base
On plinth, the moulding process such as die forging or extruding are added so that processing flow becomes more cumbersome, not only low production efficiency, but also
The defects of be easy to causeing uneven Deformation structure and deformation micro-crack.
Therefore, in order to meet the needs of industry is to high intensity and highly conductive Cu-Ni-Si series copper alloys, there is an urgent need for design and develop
The Cu-Ni-Si alloy forming new technology of high efficiency shortened process.
Twin roll continuous casting is a kind of net molding technology of short route gold, which links together continuous casting and rolling,
Material from liquid can directly be cast to the strip that thickness is 1-10mm thickness, simplify production procedure, improve production efficiency.
The technology has been widely used in aluminium alloy processing at present.But due to existing Twin roll continuous casting skill
Art often directly atmospheric conditions carry out, if directly by the technology for Cu-Ni-Si alloy Strip will will appear as
Lower problem：First under atmospheric environment, Cu-Ni-Si alloy melting and strip casting process easily aoxidize, oxygen in the operation of rolling
Compound is mingled with to be caused to crack in the operation of rolling using as formation of crack；Secondly, the Cu-Ni-Si systems Casting Rolled Sheet obtained under atmospheric conditions
Base is susceptible to many oxide and is mingled with, and the comprehensive performances such as the electric conductivity for significantly reducing Cu-Ni-Si series copper alloys and intensity are referred to
Mark.In addition, Cu-Ni-Si alloy will have Ni under equilibrium freezing process condition2Si precipitated phases, if casting and follow-up cooling
Process cooling rate is slow, it will the coarse Ni having2Si is precipitated, and it is unfavorable that the performance indicator of Cu-Ni-Si alloy cast-rolled blocks is generated
It influences.
Invention content
The present invention overcomes the deficiencies of the prior art and provide a kind of Cu-Ni-Si-Mg copper alloy plate strips casting and rolling installation and casting
Method, this method complete casting and the rapid cooling of copper alloy under vacuum, in this way can by casting-rolling technology so as to fulfill
The short route manufacture of high property copper alloy, improves production efficiency.Simultaneously as the casting of copper alloy is completed under vacuum,
The problem of casting cracking and copper alloy performance lower caused by avoiding strip casting process oxidation.
In order to achieve the above object, the present invention is achieved through the following technical solutions.
A kind of Cu-Ni-Si-Mg alloy sheet strips casting-rolling method, includes the following steps.
1）According to mass ratio Cu：Ni：Si：Mg=94-97：2-5：0.5-0.8：0.07-0.14 weighs cathode fine copper, industry
Pure nickel, industrial pure silicon, pure magnesium.
2）Cathode fine copper and industrial pure ni are put into melting kettle, vacuum degree ＜ 0.1Pa in equipment are heated to 1250-
1280 DEG C, melting is carried out, after the completion of melting, industrial pure silicon, pure magnesium are added to inside melt, abundant melting stirring obtains
Obtain Cu-Ni-Si-Mg alloy melts.
3）After melting, Cu-Ni-Si-Mg alloy molten solutions are poured into through current distribution device in casting and rolling machine by promotion stopper carries out casting,
Cast-rolled block by Casting Roller outlet port infrared radiation thermometer thermometric, and by temperature feedback to casting control system, according to measure
Temperature by control system be adjusted in synchronism Casting Roller roller speed.
4）Cu-Ni-Si-Mg alloys slab after rolling is by being quickly cooled down；Obtain Cu-Ni-Si-Mg alloy Casting Rolled Sheets
Band dries to obtain finished product after polishing cleaning.
Preferably, compare Cu according to material quality：Ni：Si：Mg=96.2：3.0：0.7：0.1 prepares raw material.
Preferably, it after melting, promotes stopper and Cu-Ni-Si-Mg alloy molten solutions is poured into casting in casting and rolling machine through current distribution device
Into the sheet band of thickness 2-5mm.
Preferably, current distribution device and side seal board are preheated before casting, preheating temperature is 800 DEG C, 400 DEG C respectively.
Preferably, it before casting, to aquadag on the roll surface even application of left roll and right Casting Roller, is then sprayed with flame
Apply baking, 400 DEG C of baking temperature, baking time 4h.
Cu-Ni-Si-Mg alloys slab after rolling sprays into high purity inert gas by the high pressure nozzle of surrounding and is quickly cooled down.
Cu-Ni-Si-Mg alloys slab after preferred rolling sprays into N by the high pressure nozzle of surrounding2Gas is quickly cooled down.
A kind of Cu-Ni-Si-Mg alloy sheet strips casting and rolling installation, melting casting and rolling machine are respectively with vacuum system and casting control
System is connected, and the top of the melting casting and rolling machine is provided with melting kettle, and charging is provided at the top of the melting kettle
Storehouse, the melting kettle wall are equipped with crucible heater, and the melting kettle bosom is provided with stopper, and described is molten
Refining crucible bottom is connected with current distribution device, and the current distribution device lower part is connected with side seal board, and the both sides of the current distribution device are set respectively
Be equipped with left roll and right roll, the left roll and right roll are internally provided with closed circulation water route, closed circulation water route with
Cooling water pipeline connects, and the right roll is connected with roll gap spacing control hydraulic device, under the left roll and right roll
Portion sets infrared radiation thermometer, and infrared radiation thermometer is connect with casting control system.It is peripherally disposed below infrared radiation thermometer to have
Multigroup high pressure gas nozzle, high pressure centrifugal wind turbine and oil-to-water heat exchanger, the external water-cooled of the oil-to-water heat exchanger are handed over
Parallel operation recirculated cooling water, high pressure gas nozzle is connect with high purity inert gas tank, and is provided with valve.
Further, the left Casting Roller along the circumferential direction may be provided with abnormal-shape ditch with right roll outer surface, be formed different
The pass in type section.
Further, the left roll, right roll, roll gap spacing control hydraulic device are both provided with rubber seal ring shape
The rotation axis seal system of formula.
The present invention has following row advantageous effect compared with prior art.
1）The present invention is to complete casting under vacuum, is realized directly by the forming process of liquid metal to plank,
Simplify production process, shorten the production cycle, significantly improve the production efficiency of Cu-Ni-Si-Mg alloy sheet strip light sheets.
2）The present invention effectively inhibits casting Cu-Ni-Si-Mg alloy sheet strips in tradition by the method being quickly cooled down after casting
Ni in cooling procedure2The precipitation of Si precipitated phases, the Cu-Ni-Si-Mg alloy sheet strips band metallographic structure of preparation is tiny equiax crystal group
It knits, there is no as cast condition prosperity arborescent structure, α-Cu matrixes is obtained after casting rapid cooling.
3）Casting is cracked caused by the present invention not only prevents oxidation, but also reduces Cu-Ni-Si-Mg alloy sheet strips in strip casting process
Oxidation, reduce the milling face amount of stripping off the skin, be a kind of processing skill of the forming of novel production high-performance Cu-Ni-Si-Mg lattens
Art.
4）Coordinate the copper alloy plate preparation, it can be achieved that different in nature section by profiled-cross-section Casting Roller, enrich Cu-Ni-
The processing method of Si-Mg alloy sheet strips.
Description of the drawings
Fig. 1 is the structure diagram of Cu-Ni-Si-Mg alloy sheet strips casting and rolling installation of the present invention.
Fig. 2 is Cu-Ni-Si-Mg alloy plate strip sectional views in casting rectangular section of the present invention.
Fig. 3 is casting Cu-Ni-Si-Mg alloy strip steel rolled stocks of the present invention along forming direction section metallographic structure shape appearance figure.
Fig. 4 is casting Cu-Ni-Si-Mg alloy strip steel rolled stocks X-ray diffraction intensity collection of illustrative plates of the present invention.
Fig. 5 is special-shaped " I-shaped " section product roll shape schematic diagram.
Fig. 6 is special-shaped " dentation " section product roll shape schematic diagram.
Wherein, 1 is melting casting and rolling machine, and 2 be melting kettle, and 3 be feeding chamber, and 4 be Cu-Ni-Si-Mg alloy melts, and 5 be earthenware
Crucible heater, 6 be stopper, and 7 be current distribution device, and 8 be side seal board, and 9 be left roll, and 10 be right roll, and 11 control liquid for roll gap spacing
Pressure device, 12 be infrared radiation thermometer, and 13 be high pressure gas nozzle, and 14 be high pressure centrifugal wind turbine, and 15 be Cu-Ni-Si-Mg alloys
Strip, 16 be inert gas tank, and 17 be valve, and 18 be oil-to-water heat exchanger, and 19 be vacuum system, and 20 be casting control system,
21 be Casting Roller cooling water pipeline.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Embodiment and attached drawing are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.With reference to the embodiment technical solution that the present invention will be described in detail, but protect
Shield range is not limited by this.
As shown in Figure 1, Cu-Ni-Si-Mg alloy sheet strip casting and rolling installations, melting casting and rolling machine 1 is vertical, and melting casting and rolling machine 1 divides
It is not connected with vacuum system 19 and casting control system 20, the top of melting casting and rolling machine 1 is provided with melting kettle 2, melting earthenware
The top of crucible 2 is provided with feeding chamber 3, is Cu-Ni-Si-Mg alloy melts 4 in melting kettle 2, and 2 wall of melting kettle is equipped with earthenware
Crucible heater 5,2 bosom of melting kettle are provided with stopper 6, and 2 lower part of melting kettle is connected with current distribution device 7,7 lower part of current distribution device
It is connected with side seal board 8, the both sides of current distribution device 7 are respectively arranged with left roll 9 and right roll 10, inside left roll 9 and right roll 10
Closed circulation water route is provided with, closed circulation water route is connect with cooling water pipeline 21, and right roll 10 is connected with the control of roll gap spacing
Hydraulic device 11, left roll 9 and 10 lower part of right roll setting infrared radiation thermometer 12, infrared radiation thermometer 12 and casting control system 20
Connection, 12 lower section of infrared radiation thermometer is peripherally disposed multigroup high pressure gas nozzle 13, high pressure centrifugal wind turbine 14 and water
Cool-heat-exchanger 18,18 external oil-to-water heat exchanger recirculated cooling water of oil-to-water heat exchanger, high pressure gas nozzle 13 with it is high-purity lazy
Property gas tank 16 connect, and be provided with valve 17, pass through valve 17 and control high pressure gas orifice gas flow and flow velocity.
As shown in Figure 5,6, left Casting Roller 9 and right 10 outer surface of roll be along the circumferential direction additionally provided with " I-shaped " or
" dentation " abnormal-shape ditch forms the pass of profiled-cross-section.
Left roll 9, right roll 10, roll gap spacing control hydraulic device 11 are both provided with the rotation of rubber seal ring form
Axle sealing system.
Specific work process is：After vacuum system 19 vacuumizes, melting obtains Cu-Ni-Si-Mg alloy melts 4, Cu-Ni-
Si-Mg alloy melts 4, by entering between side seal board 8, left roll 9 and right roll 10 in current distribution device 7, casting forms Cu-Ni-
Si-Mg alloy sheet strips 15.15 temperature of casting Cu-Ni-Si-Mg alloy sheet strips is measured by infrared radiation thermometer 12, is fed back according to thermometric
Casting control system 20 is adjusted in synchronism left roll 9 and 10 roller of right Casting Roller speed by casting control system 20.After casting, by
The Cu-Ni-Si-Mg alloy sheet strips 15 that high pressure gas nozzle 13 forms casting cool down, by high pressure gas nozzle 13 and height
Valve 17 between pure inert gas tank 16 controls high pressure gas orifice gas flow and flow velocity, is added by high pressure centrifugal wind turbine 14
Inert gas convection current in fast thawing casting milling train 1 is reduced the temperature of inert gas in melting casting and rolling machine 1 by oil-to-water heat exchanger 18.
Embodiment 1
A kind of Cu-Ni-Si-Mg alloy sheet strips casting-rolling method, includes the following steps.
1）According to mass ratio Cu：Ni：Si：Mg=94：2：0.5：0.07, weigh cathode fine copper, industrial pure ni, industrial pure silicon,
Pure magnesium.
2）Cathode fine copper and industrial pure ni are put into melting kettle 2, vacuum degree ＜ 0.1Pa in equipment are heated to 1250 DEG C,
Melting is carried out, after the completion of melting, industrial pure silicon, pure magnesium are added to inside melt, abundant melting stirring obtains Cu-Ni-
Si-Mg alloy melts.
3）After melting, promote stopper 6 and be poured into Cu-Ni-Si-Mg alloy molten solutions 4 in casting and rolling machine through current distribution device 7 and cast
It rolls, the roll of left Casting Roller 9 and right Casting Roller 10 cooperation in implementation process is as shown in figure 5, special-shaped " I-shaped " the section casting of production
Strip, Casting Rolled Sheet tape thickness 2mm；Cast-rolled block by Casting Roller outlet port 12 thermometric of infrared radiation thermometer, and by temperature feedback
To casting control system 20, Casting Roller roller speed is adjusted in synchronism by control system according to the temperature of measure and reaches 10-30m/min.
4）Cu-Ni-Si-Mg alloys slab after rolling sprays into high-purity N by the high pressure nozzle of surrounding2It is quickly cooled down, gas
When pressure is 0.4Mpa, cooling velocity is 2 DEG C/s；Cu-Ni-Si-Mg alloy Casting Rolled Sheet bands are obtained, by the Cu-Ni- after rolling
Si-Mg alloy sheet strips are placed on tablet, with 400 mesh sand paper polishing positive and negative and periphery, treat its finishing；Then it is clear with absolute ethyl alcohol
The positive and negative surface of casting and periphery are washed, makes its cleaning, is dried after cleaning.
Embodiment 2
A kind of Cu-Ni-Si-Mg alloy sheet strips casting-rolling method, includes the following steps.
1）According to mass ratio Cu：Ni：Si：Mg=97：5：0.8：0.14, weigh cathode fine copper, industrial pure ni, industrial pure silicon,
Pure magnesium.
2）Cathode fine copper and industrial pure ni are put into melting kettle 2, vacuum degree ＜ 0.1Pa in equipment are heated to 1280 DEG C,
Melting is carried out, after the completion of melting, industrial pure silicon, pure magnesium are added to inside melt, abundant melting stirring obtains Cu-Ni-
Si-Mg alloy melts.
3）After melting, promote stopper 6 and be poured into Cu-Ni-Si-Mg alloy molten solutions 4 in casting and rolling machine through current distribution device 7 and cast
It rolls, the roll of left Casting Roller 9 and right Casting Roller 10 cooperation in implementation process is as shown in fig. 6, special-shaped " dentation " the section casting of production
Strip, Casting Rolled Sheet tape thickness 3mm；Cast-rolled block by Casting Roller outlet port 12 thermometric of infrared radiation thermometer, and by temperature feedback
To casting control system 20, Casting Roller roller speed is adjusted in synchronism by control system according to the temperature of measure and reaches 10-30m/min.
4）Cu-Ni-Si-Mg alloys slab after rolling sprays into high-purity argon gas by the high pressure nozzle of surrounding and is quickly cooled down, gas
When body pressure is 0.1Mpa, cooling velocity is 1 DEG C/s；Cu-Ni-Si-Mg alloy Casting Rolled Sheet bands are obtained, are dried after polishing cleaning
Obtain finished product.
Embodiment 3
Cu-Ni-Si-Mg alloy sheet strip casting-rolling methods, include the following steps：
1）According to mass ratio Cu：Ni：Si：Mg=96.2：3.0：0.7：0.1, weigh cathode fine copper, industrial pure ni, industrial pure silicon,
Pure magnesium.
2）Cathode fine copper and industrial pure ni are put into melting kettle 2, vacuum degree ＜ 0.1Pa in equipment are heated to 1260 DEG C,
Melting is carried out, after the completion of melting, industrial pure silicon, pure magnesium are added to inside melt, abundant melting stirring obtains Cu-Ni-
Si-Mg alloy melts.
3）After melting, promote stopper 6 and be poured into Cu-Ni-Si-Mg alloy molten solutions 4 in casting and rolling machine through current distribution device 7 and cast
It rolls, Casting Rolled Sheet tape thickness 5mm；Cast-rolled block and is arrived temperature feedback by 12 thermometric of infrared radiation thermometer of Casting Roller outlet port
Casting control system 20 is adjusted in synchronism Casting Roller roller speed by control system according to the temperature of measure and reaches 10-30m/min.
4）Cu-Ni-Si-Mg alloys slab after rolling sprays into high-purity N by the high pressure nozzle of surrounding2It is quickly cooled down, gas
When pressure is 0.4Mpa, cooling velocity is 2 DEG C/s；Cu-Ni-Si-Mg alloy Casting Rolled Sheet bands are obtained, are dried after polishing cleaning
To finished product.
Test, analysis and characterization are carried out to the Cu-Ni-Si-Mg alloy Casting Rolled Sheets band prepared in embodiment 3.
Such as Fig. 3,4, Analysis on Microstructure is carried out to Cu-Ni-Si-Mg alloys Casting Rolled Sheet band cross section with metallographic microscope.
Material phase analysis is carried out to Cu-Ni-Si-Mg alloy Casting Rolled Sheet bands with XRD diffractometers.
Microhardness analysis is carried out to Cu-Ni-Si-Mg alloy Casting Rolled Sheet bands with Vickers.
Intensive analysis is carried out to Cu-Ni-Si-Mg alloy Casting Rolled Sheet bands with universal tensile testing machine.
Conclusion：Tiny equiaxed grain structure is organized as, and be not present in organizing by casting Cu-Ni-Si-Mg alloy sheet strips
Coarse Ni2The alloying elements such as Si precipitated phases, Ni, Si, which are dissolved into matrix α-Cu, forms supersaturated solid solution, and strip hardness reaches
To 90HV, tensile strength 330Mpa, elongation percentage 40%.
The above content is combine specific preferred embodiment to the further description of the invention done, it is impossible to assert
The specific embodiment of the present invention is only limitted to this, for those of ordinary skill in the art to which the present invention belongs, is not taking off
Under the premise of from the present invention, several simple deduction or replace can also be made, should all be considered as belonging to the present invention by being submitted
Claims determine scope of patent protection.
Claims (10)
1. a kind of Cu-Ni-Si-Mg alloy sheet strips casting-rolling method, it is characterised in that：Include the following steps：
1）According to mass ratio Cu：Ni：Si：Mg=94-97：2-5：0.5-0.8：0.07-0.14 weighs cathode fine copper, technical pure
Nickel, industrial pure silicon, pure magnesium；
2）Cathode fine copper and industrial pure ni are put into melting kettle（2）, vacuum degree ＜ 0.1Pa in equipment are heated to 1250-1280
DEG C, melting is carried out, after the completion of melting, industrial pure silicon, pure magnesium are added to inside melt, abundant melting stirring obtains Cu-
Ni-Si-Mg alloy melts；
3）After melting, stopper is promoted（6）By Cu-Ni-Si-Mg alloy molten solutions（4）Through current distribution device（7）It is poured into casting and rolling machine and carries out
Casting, cast-rolled block by Casting Roller outlet port infrared radiation thermometer（12）Thermometric, and by temperature feedback to casting control system
（20）, according to the temperature of measure by casting control system（20）It is adjusted in synchronism Casting Roller roller speed；
4）Cu-Ni-Si-Mg alloys slab after rolling is quickly cooled down by non-oxide, and cooling velocity is 1-2 DEG C/s；Obtain
Cu-Ni-Si-Mg alloy Casting Rolled Sheet bands dry to obtain finished product after polishing cleaning.
2. a kind of Cu-Ni-Si-Mg alloy sheet strips casting-rolling method according to claim 1, it is characterised in that：According to raw material
Mass ratio Cu：Ni：Si：Mg=96.2：3.0：0.7：0.1 prepares raw material.
3. a kind of Cu-Ni-Si-Mg alloy sheet strips casting-rolling method according to claim 1, it is characterised in that：After melting, carry
Rise stopper（6）By Cu-Ni-Si-Mg alloy molten solutions（4）Through current distribution device（7）Casting is poured into casting and rolling machine into the thin of thickness 2-5mm
Strip.
4. a kind of Cu-Ni-Si-Mg alloy sheet strips casting-rolling method according to claim 1, which is characterized in that right before casting
Current distribution device（7）And side seal board（8）It is preheated, preheating temperature is 800 DEG C, 400 DEG C respectively.
5. a kind of Cu-Ni-Si-Mg alloy sheet strips casting-rolling method according to claim 1, which is characterized in that before casting,
To left roll（9）With right Casting Roller（10）Roll surface even application on aquadag, then toasted with flame-spraying, baking temperature
400 DEG C, baking time 4h.
6. a kind of Cu-Ni-Si-Mg alloy sheet strips casting-rolling method according to claim 1, which is characterized in that after rolling
Cu-Ni-Si-Mg alloys slab by surrounding multigroup high pressure gas nozzle（13）High purity inert gas is sprayed into be quickly cooled down.
7. a kind of Cu-Ni-Si-Mg alloy sheet strips casting-rolling method according to claim 1, which is characterized in that after rolling
Cu-Ni-Si-Mg alloys slab by surrounding multigroup high pressure gas nozzle（13）Spray into high-purity N2It is quickly cooled down.
8. a kind of Cu-Ni-Si-Mg alloy sheet strips casting and rolling installation, it is characterised in that：Melting casting and rolling machine（1）Respectively with vacuum system
（19）With casting control system（20）It is connected, the melting casting and rolling machine（1）Top be provided with melting kettle（2）, it is described
Melting kettle（2）Top be provided with feeding chamber（3）, the melting kettle（2）Wall is equipped with crucible heater（5）, institute
The melting kettle stated（2）Bosom is provided with stopper（6）, the melting kettle（2）Lower part is connected with current distribution device（7）, institute
The current distribution device stated（7）Lower part is connected with side seal board（8）, the current distribution device（7）Both sides be respectively arranged with left roll（9）And the right side
Roll（10）, the left roll（9）With right roll（10）It is internally provided with closed circulation water route, closed circulation water route and cooling
Water lines（21）Connection, the right roll（10）It is connected with roll gap spacing control hydraulic device（11）, the left roll（9）
With right roll（10）Lower part sets infrared radiation thermometer（12）, infrared radiation thermometer（12）With casting control system（20）Connection, it is infrared
Temperature measurer（12）Lower section is peripherally disposed multigroup high pressure gas nozzle（13）, high pressure centrifugal wind turbine（14）And water-cooled
Exchanger（18）, the oil-to-water heat exchanger（18）External oil-to-water heat exchanger recirculated cooling water, high pressure gas nozzle（13）
With high purity inert gas tank（16）Connection, and it is provided with valve（17）.
A kind of 9. Cu-Ni-Si-Mg alloy sheet strips casting and rolling installation according to claim 8, which is characterized in that the left side
Casting Roller（9）With right roll（10）Outer surface along the circumferential direction may be provided with abnormal-shape ditch, form the pass of profiled-cross-section.
A kind of 10. Cu-Ni-Si-Mg alloy sheet strips casting and rolling installation according to claim 8, which is characterized in that the left side
Roll（9）, right roll（10）, roll gap spacing control hydraulic device（11）The rotary shaft for being both provided with rubber seal ring form is close
Envelope system.
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| CN201810028027.XA CN108220670B (en) | 2018-01-11 | 2018-01-11 | Casting-rolling method and casting-rolling equipment for Cu-Ni-Si-Mg alloy plate strip |
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|---|---|---|---|
| CN201810028027.XA CN108220670B (en) | 2018-01-11 | 2018-01-11 | Casting-rolling method and casting-rolling equipment for Cu-Ni-Si-Mg alloy plate strip |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110144486A (en) * | 2019-06-04 | 2019-08-20 | 中北大学 | A kind of preparation method of high-strength high-conductive copper alloy |
| CN112609104A (en) * | 2020-10-20 | 2021-04-06 | 陕西斯瑞新材料股份有限公司 | Novel semi-continuous metal casting process of heat-resistant copper alloy and application thereof |
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| CN114798735A (en) * | 2021-01-28 | 2022-07-29 | 华中科技大学 | Composite incremental quantity manufacturing method |
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| CN112609104A (en) * | 2020-10-20 | 2021-04-06 | 陕西斯瑞新材料股份有限公司 | Novel semi-continuous metal casting process of heat-resistant copper alloy and application thereof |
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| CN114798735A (en) * | 2021-01-28 | 2022-07-29 | 华中科技大学 | Composite incremental quantity manufacturing method |
| CN112935207A (en) * | 2021-01-29 | 2021-06-11 | 吉林大学 | Multifunctional double-roller casting and rolling equipment and application thereof |
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