CN104846234A - Cu-Zr-Ag alloy crystallizer copper plate and preparation process thereof - Google Patents
Cu-Zr-Ag alloy crystallizer copper plate and preparation process thereof Download PDFInfo
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Abstract
The invention discloses a Cu-Zr-Ag alloy crystallizer copper plate, containing metal Zr of 0.05 to 0.25wt%, deoxidizing agent metal Mg of 0.05wt%, metal Ag of 0.06 to 0.15wt% and metal Cu of 99.65 to 99.77wt%. The invention also discloses a preparation process of the Cu-Zr-Ag alloy crystallizer copper plate, which has better heat conductivity and high pulling resistance and higher softening temperature, the service life of the crystallizer copper plate is prolonged, pull speed of a slab casting machine is improved, production efficiency of slabs is greatly improved, and the copper plate is a novel long-service life crystallizer copper plate suitable for high-pull speed, high-efficiency, high-pace and high-yield continuous casting operation.
Description
Technical field
The invention belongs to continuous casting installation for casting component technology field, particularly a kind of Cu-Zr-Ag Crystallizer Alloy copper coin and preparation technology thereof.
Background technology
Along with domestic iron and steel enterprises is to energy-saving and emission-reduction and the proposition that eliminates the backward production facilities, production efficiency of equipment improves one after another in domestic each iron and steel enterprise, be exactly improve the utilising efficiency of continuous caster and improve the pulling rate of casting machine viewed from continuous casting installation for casting aspect, the pulling rate of conventional slab caster is increased to 1.2 ~ 2.8m/min by 0.5 original ~ 1.5m/min, be exactly improve the utilising efficiency of continuous caster and improve the pulling rate of casting machine viewed from continuous casting aspect, thus reduction production cost, this material to the core component copper plate of crystallizer of continuous cast mold requires more to increase, its core is the work-ing life of significantly improving copper plate of crystallizer under high pulling rate, existing copper plate of crystallizer mainly contains Ag-Cu material crystalline device copper coin and Cu-Cr-Zr copper plate of crystallizer, Ag-Cu copper coin due to recrystallization temperature low, intensity is low, along with the raising of pulling rate, has shown the deficiency of its performance, occurs that copper coin high temperature creep causes service life reduction, though the intensity of its material of Cu-Cr-Zr copper coin is high, but heat conductivility difference is also difficult to the needs meeting high pulling rate crystallizer, therefore in the urgent need to a kind of thermal conductivity than Cu-Cr-Zr crystallizer copper plate hight, intensity and recrystallization temperature are than Ag-Cu crystallizer copper plate hight, and the better copper plate of crystallizer of wear resisting property is applied in the continuous caster of high pulling rate condition.
Summary of the invention
Problem to be solved by this invention is to provide that a kind of thermal conductivity is good, wear resistance is good, intensity is high, the Cu-Zr-Ag Crystallizer Alloy copper coin of long service life and preparation technology thereof.
A kind of Cu-Zr-Ag Crystallizer Alloy copper coin, the metal zirconium containing 0.05% ~ 0.25% quality, the reductor MAGNESIUM METAL of 0.03% ~ 0.05% quality, the argent of 0.06% ~ 0.15% quality, the metallic copper of 99.65% ~ 99.77% quality.
A preparation technology for Cu-Zr-Ag Crystallizer Alloy copper coin, comprises the steps:
A. obtain the strand of Cu-Zr-Ag alloy through vacuum melting and vacuum casting, the processing parameter of its alloy formula and vacuum melting and vacuum casting is as follows:
Metal zirconium mass percent: 0.05% ~ 0.25%,
Argent mass percent: 0.06% ~ 0.15%,
Reductor MAGNESIUM METAL mass percent: 0.03% ~ 0.05%,
Metallic copper mass percent: 99.65% ~ 99.77%,
Refining vacuum tightness :≤30Pa,
Fire-resistant funnel aperture: 36mm,
Refining temperature: 1350 DEG C,
Be filled with argon gas final vacuum degree :-0.08MPa,
Teeming temperature: 1270 DEG C ~ 1280 DEG C;
B. after determining forging deformation direction, the strand of Cu-Zr-Ag alloy is carried out forge hot, its thermal forging technology is as follows:
Forge hot heat-up time: 2.5h ~ 3h,
Initial forging temperature: 800 DEG C ~ 860 DEG C,
Forging deformation amount: 25mm ~ 30mm,
Final forging temperature: 600 DEG C ~ 650 DEG C;
C. the Cu-Zr-Ag sheet alloy after forge hot is carried out solution treated, its solid process of smelting is as follows:
Gu melting temperatur: 850 DEG C ~ 950 DEG C,
Admittedly molten time: 1h ~ 2h,
Temperature of cooling water: 20 DEG C ~ 30 DEG C,
From Time Of Launching of coming out of the stove: 30S ~ 60S;
D. carried out by the strand of the Cu-Zr-Ag alloy after admittedly molten cold rollingly obtaining Cu-Zr-Ag sheet alloy, its cold-rolling process is as follows:
Cold rolling total deformation: 15% ~ 20%,
The amount of rolling under cold rolling single: 2.5mm;
E. the Cu-Zr-Ag sheet alloy after cold-rolling treatment is carried out ageing treatment and obtain qualified high casting speed continuous casting machine copper plate of crystallizer mother metal, its aging treatment process is as follows:
Aging temp: 360 DEG C ~ 500 DEG C,
Aging time: 3h ~ 6h;
F. utilize numerical control machining center, in conjunction with continuous casting process, the high casting speed continuous casting machine copper plate of crystallizer mother metal prepared is carried out mechanical workout, processes all types of casting mold for continuous casting copper coin.
The present invention is that the thermal conductivity in order to overcome Cu-Cr-Zr copper plate of crystallizer is poor, the shortcoming that the intensity of Ag-Cu copper plate of crystallizer is lower, provide one and there is good heat conductivility and more high-tensile Cu-Zr-Ag Crystallizer Alloy copper coin, also there is very high softening temperature simultaneously, extend the work-ing life of copper plate of crystallizer, improve the pulling rate of conventional slab caster, the production efficiency of slab is improved greatly.
The present invention realizes like this, first have employed brand-new formula, namely at traditional argent, appropriate metal zirconium is added in the middle of MAGNESIUM METAL and metallic copper, its mass percent is: metal zirconium mass percent: 0.05% ~ 0.25%, argent mass percent: 0.06% ~ 0.15%, reductor MAGNESIUM METAL mass percent: 0.03% ~ 0.05%, metallic copper mass percent: 99.65% ~ 99.77%, zirconium solid solubility in copper alloy is little, and it is few to reduce traditional performance, can at single-phase fine copper precipitation in matrix, separate out a large amount of fine uniform dispersoid particle, good to reach strengthening performance, tensile strength is high, high temperature production stability is good, but zirconium in the alloy addition needs strict control, add the less performance boost for copper alloy not obvious, adding too much to cause the temperature transmission effect of copper alloy to reduce.Unit elongation reduces, and affects the overall performance of copper alloy.Magnesium is limited solid solution element, the heat-conductive characteristic reducing copper alloy during trace is less, but can improve the high temperature oxidation resistance of copper alloy and have the effect of deoxidation when melting copper water, addition needs strict control, so as not to too much time the heat-conductive characteristic of copper alloy is reduced.The stable chemical nature of argent, activity is low, price, heat conduction, conductivity very well, are not subject to pharmaceutical chemicals corrosion, matter is soft, rich ductility, silver can increase its heat-conductive characteristic and unit elongation in copper alloy, and reduction zirconium and magnesium are on the impact of copper alloy performance, make the more traditional copper alloy not adding silver of the heat transfer performance of copper alloy improve 10% nearly, improve the heat transfer efficiencies of slab in copper plate of crystallizer.The combination of three kinds of metallic elements, ensures that material has higher density and good electrical and thermal conductivity performance, significantly ageing strengthening effect and good creep-resistant property, meets the Production requirement of slab, enhance production progress.
Secondly production technique is improved, vacuum melting makes copper water seethe with excitement, be beneficial to the precipitation of the impurity of easily performance property, improve the purity of copper liquid, now add magnesium, silver and zirconium, form Cu-Zr-Ag aluminium alloy, the control accuracy for composition is higher, alloying element under vacuum conditions melting is not oxidizable, and uniform composition is beneficial to the conductivity of copper coin and the raising of mechanical property.Vacuum degree control, at below 30Pa, makes the better effects if of vacuum, and the performance boost for Cu-Zr-Ag alloy is higher, and fire-resistant funnel aperture is arranged on 36mm, is also convenient to the performance improving Cu-Zr-Ag alloy.
After Cu-Zr-Ag alloy casting becomes strand, determine that forge hot process is carried out to it in forging deformation direction, initial forging temperature is 800 DEG C ~ 860 DEG C, the consumption of the energy is saved compared to technique before, forge hot mainly reduces the resistance to deformation of Cu-Zr-Ag alloy, change its as-cast structure, through recrystallize in hot forging process, thick as-cast structure becomes the new organization of small grains, and reduce the defect of as-cast structure, improve mechanical property.Then Cu-Zr-Ag sheet alloy is carried out solution treated, solid solubility temperature is 850 DEG C ~ 950 DEG C, solution treatment alloy is heated to high temperature single phase region constant temperature to keep, surplus is made fully to be dissolved into cooling fast after in sosoloid mutually, to obtain the thermal treatment of supersaturated solid solution, mainly improve plasticity and the toughness of Cu-Zr-Ag alloy, for precipitation hardening process is got ready, make variously in alloy fully to dissolve mutually, Intensive intervention body, and improve toughness and etch resistant properties, eliminate stress with softening, to continue processing or shaping, copper plate of crystallizer at high temperature works, therefore higher solid solubility temperature is needed to obtain larger grain fineness number, good high-temperature and durable and creep property can be had.Carry out cold rollingly obtaining Cu-Zr-Ag sheet alloy to Cu-Zr-Ag alloy casting blank after solution treatment, cold rolling total deformation is 15% ~ 20%, carrying out continuous cold distortion causes alloy cold working hardening to make its intensity, hardness increase, after three steps, the Brinell hardness of Cu-Zr-Ag alloy, tensile strength, softening temperature and unit elongation can improve greatly.
Cu-Zr-Ag sheet alloy after cold-rolling treatment is carried out ageing treatment and obtain qualified high casting speed continuous casting machine copper plate of crystallizer mother metal, alloy mother metal hardness after ageing treatment and intensity can increase again, finally utilize numerical control machining center, in conjunction with continuous casting process, the high casting speed continuous casting machine copper plate of crystallizer mother metal prepared is carried out mechanical workout, process different shapes, there are all types of casting mold for continuous casting copper coins of the different structure such as cooling trough, high casting speed continuous casting machine replaces the copper plate of crystallizer of existing Cu-Cr-Zr and Cu-Ag material.
The present invention adds alloy classification proportioning by innovation, and adopt the techniques such as vacuum melting, vacuum-casting, forge hot, solid molten, cold working hardening, thermal treatment to improve the performance of product material, by the working method of advanced person, thus produce the high life copper plate of crystallizer of a kind of novel high heat conduction, high-temperature resistant performance.The material Cu-Ag of the existing copper plate of crystallizer of its strength ratio of high life copper plate of crystallizer developed is high, and wear resisting property is good, and have higher recrystallization temperature, material high temperature and creep resistance ability is also enhanced; And there is good electrical and thermal conductivity performance, the copper plate of crystallizer Cu-Cr-Zr that its conductivity is traditional far above it; Cu-Zr-Ag Crystallizer Alloy copper coin has the performances such as high thermal conductivity, high strength, high-temperature resistant due to it, thus solve high casting speed continuous casting copper plate of crystallizer hot tearing problem, improve the work-ing life of copper plate of crystallizer, greatly reduce the improper frequency that rolls off the production line of crystallizer, add copper coin and repair number of times, reduce production cost, improve operating rate and the slab quality of continuously cast bloom machine simultaneously, ensure that administration measure runs.The crystallizer that novel C u-Zr-Ag sheet alloy makes is it's the steel life-span 560000 tons that pasts narrow side plate in our factory service condition, it's the steel life-span 1360000 tons pasts width edge plate, the pulling rate of conventional slab caster brings up to 3.4 ~ 4.2m/min, be a kind ofly be applicable to high pulling rate, high-level efficiency, Gao Jie gather, the novel high life copper plate of crystallizer of high production continuous casting work.
It is as follows that the present invention and prior art over-all properties contrast situation:
Embodiment
Embodiment one:
A preparation technology for Cu-Zr-Ag Crystallizer Alloy copper coin, it comprises the steps:
A. obtain the strand of Cu-Zr-Ag alloy through vacuum melting and vacuum casting, the processing parameter of its alloy formula and vacuum melting and vacuum casting is as follows:
Metal zirconium mass percent: 0.13%, argent mass percent: 0.11%, reductor MAGNESIUM METAL mass percent: 0.04%, metallic copper mass percent: 99.72%,
Refining vacuum tightness :≤30Pa, fire-resistant funnel aperture: 36mm, refining temperature: 1350 DEG C, is filled with argon gas final vacuum degree :-0.08MPa, teeming temperature: 1280 DEG C;
B. after determining forging deformation direction, the strand of Cu-Zr-Ag alloy is carried out forge hot, its technique is as follows:
Forge hot heat-up time: 3h, initial forging temperature: 800 DEG C, forging deformation amount: 28mm, final forging temperature: 630 DEG C;
C. the Cu-Zr-Ag sheet alloy after forge hot is carried out solution treated, its technique is as follows:
Gu melting temperatur: 920 DEG C, admittedly molten time: 1.5h, temperature of cooling water: 25 DEG C, from Time Of Launching of coming out of the stove: 50S;
D. carried out by the strand of the Cu-Zr-Ag alloy after admittedly molten cold rollingly obtaining Cu-Zr-Ag sheet alloy, its technique is as follows:
Cold rolling total deformation: 18%, the amount of rolling under cold rolling single: 2.5mm;
E. the Cu-Zr-Ag sheet alloy after cold-rolling treatment is carried out ageing treatment and obtain qualified high casting speed continuous casting machine copper plate of crystallizer mother metal, its technique is as follows:
Aging temp: 400 DEG C, aging time: 6h;
F. utilize numerical control machining center, in conjunction with continuous casting process, the high casting speed continuous casting machine copper plate of crystallizer mother metal prepared is carried out mechanical workout, processes all types of casting mold for continuous casting copper coin.
Embodiment two:
A preparation technology for Cu-Zr-Ag Crystallizer Alloy copper coin, it comprises the steps:
A. obtain the strand of Cu-Zr-Ag alloy through vacuum melting and vacuum casting, the processing parameter of its alloy formula and vacuum melting and vacuum casting is as follows:
Metal zirconium mass percent: 0.08%, argent mass percent: 0.11%, reductor MAGNESIUM METAL mass percent: 0.04%, metallic copper mass percent: 99.77%,
Refining vacuum tightness :≤30Pa, fire-resistant funnel aperture: 36mm, refining temperature: 1350 DEG C, is filled with argon gas final vacuum degree :-0.08MPa, teeming temperature: 1280 DEG C;
B. after determining forging deformation direction, the strand of Cu-Zr-Ag alloy is carried out forge hot, its technique is as follows:
Forge hot heat-up time: 3h, initial forging temperature: 800 DEG C, forging deformation amount: 28mm, final forging temperature: 630 DEG C;
C. the Cu-Zr-Ag sheet alloy after forge hot is carried out solution treated, its technique is as follows:
Gu melting temperatur: 920 DEG C, admittedly molten time: 1.5h, temperature of cooling water: 25 DEG C, from Time Of Launching of coming out of the stove: 50S;
D. carried out by the strand of the Cu-Zr-Ag alloy after admittedly molten cold rollingly obtaining Cu-Zr-Ag sheet alloy, its technique is as follows:
Cold rolling total deformation: 18%, the amount of rolling under cold rolling single: 2.5mm;
E. the Cu-Zr-Ag sheet alloy after cold-rolling treatment is carried out ageing treatment and obtain qualified high casting speed continuous casting machine copper plate of crystallizer mother metal, its technique is as follows:
Aging temp: 400 DEG C, aging time: 6h;
F. utilize numerical control machining center, in conjunction with continuous casting process, the high casting speed continuous casting machine copper plate of crystallizer mother metal prepared is carried out mechanical workout, processes all types of casting mold for continuous casting copper coin.
Embodiment three:
A preparation technology for Cu-Zr-Ag Crystallizer Alloy copper coin, it comprises the steps:
A. obtain the strand of Cu-Zr-Ag alloy through vacuum melting and vacuum casting, the processing parameter of its alloy formula and vacuum melting and vacuum casting is as follows:
Metal zirconium mass percent: 0.13%, argent mass percent: 0.06%, reductor MAGNESIUM METAL mass percent: 0.04%, metallic copper mass percent: 99.77%,
Refining vacuum tightness :≤30Pa, fire-resistant funnel aperture: 36mm, refining temperature: 1350 DEG C, is filled with argon gas final vacuum degree :-0.08MPa, teeming temperature: 1280 DEG C;
B. after determining forging deformation direction, the strand of Cu-Zr-Ag alloy is carried out forge hot, its technique is as follows:
Forge hot heat-up time: 3h, initial forging temperature: 800 DEG C, forging deformation amount: 28mm, final forging temperature: 630 DEG C;
C. the Cu-Zr-Ag sheet alloy after forge hot is carried out solution treated, its technique is as follows:
Gu melting temperatur: 920 DEG C, admittedly molten time: 1.5h, temperature of cooling water: 25 DEG C, from Time Of Launching of coming out of the stove: 50S;
D. carried out by the strand of the Cu-Zr-Ag alloy after admittedly molten cold rollingly obtaining Cu-Zr-Ag sheet alloy, its technique is as follows:
Cold rolling total deformation: 18%, the amount of rolling under cold rolling single: 2.5mm;
E. the Cu-Zr-Ag sheet alloy after cold-rolling treatment is carried out ageing treatment and obtain qualified high casting speed continuous casting machine copper plate of crystallizer mother metal, its technique is as follows:
Aging temp: 400 DEG C, aging time: 6h;
F. utilize numerical control machining center, in conjunction with continuous casting process, the high casting speed continuous casting machine copper plate of crystallizer mother metal prepared is carried out mechanical workout, processes all types of casting mold for continuous casting copper coin.
Embodiment four:
A preparation technology for Cu-Zr-Ag Crystallizer Alloy copper coin, it comprises the steps:
A. obtain the strand of Cu-Zr-Ag alloy through vacuum melting and vacuum casting, the processing parameter of its alloy formula and vacuum melting and vacuum casting is as follows:
Metal zirconium mass percent: 0.13%, argent mass percent: 0.11%, reductor MAGNESIUM METAL mass percent: 0.03%, metallic copper mass percent: 99.73%,
Refining vacuum tightness :≤30Pa, fire-resistant funnel aperture: 36mm, refining temperature: 1350 DEG C, is filled with argon gas final vacuum degree :-0.08MPa, teeming temperature: 1280 DEG C;
B. after determining forging deformation direction, the strand of Cu-Zr-Ag alloy is carried out forge hot, its technique is as follows:
Forge hot heat-up time: 3h, initial forging temperature: 800 DEG C, forging deformation amount: 28mm, final forging temperature: 630 DEG C;
C. the Cu-Zr-Ag sheet alloy after forge hot is carried out solution treated, its technique is as follows:
Gu melting temperatur: 920 DEG C, admittedly molten time: 1.5h, temperature of cooling water: 25 DEG C, from Time Of Launching of coming out of the stove: 50S;
D. carried out by the strand of the Cu-Zr-Ag alloy after admittedly molten cold rollingly obtaining Cu-Zr-Ag sheet alloy, its technique is as follows:
Cold rolling total deformation: 18%, the amount of rolling under cold rolling single: 2.5mm;
E. the Cu-Zr-Ag sheet alloy after cold-rolling treatment is carried out ageing treatment and obtain qualified high casting speed continuous casting machine copper plate of crystallizer mother metal, its technique is as follows:
Aging temp: 400 DEG C, aging time: 6h;
F. utilize numerical control machining center, in conjunction with continuous casting process, the high casting speed continuous casting machine copper plate of crystallizer mother metal prepared is carried out mechanical workout, processes all types of casting mold for continuous casting copper coin.
Embodiment five:
A preparation technology for Cu-Zr-Ag Crystallizer Alloy copper coin, it comprises the steps:
A. obtain the strand of Cu-Zr-Ag alloy through vacuum melting and vacuum casting, the processing parameter of its alloy formula and vacuum melting and vacuum casting is as follows:
Metal zirconium mass percent: 0.16%, argent mass percent: 0.15%, reductor MAGNESIUM METAL mass percent: 0.04%, metallic copper mass percent: 99.65%,
Refining vacuum tightness :≤30Pa, fire-resistant funnel aperture: 36mm, refining temperature: 1350 DEG C, is filled with argon gas final vacuum degree :-0.08MPa, teeming temperature: 1280 DEG C;
B. after determining forging deformation direction, the strand of Cu-Zr-Ag alloy is carried out forge hot, its technique is as follows:
Forge hot heat-up time: 3h, initial forging temperature: 800 DEG C, forging deformation amount: 28mm, final forging temperature: 630 DEG C;
C. the Cu-Zr-Ag sheet alloy after forge hot is carried out solution treated, its technique is as follows:
Gu melting temperatur: 920 DEG C, admittedly molten time: 1.5h, temperature of cooling water: 25 DEG C, from Time Of Launching of coming out of the stove: 50S;
D. carried out by the strand of the Cu-Zr-Ag alloy after admittedly molten cold rollingly obtaining Cu-Zr-Ag sheet alloy, its technique is as follows:
Cold rolling total deformation: 18%, the amount of rolling under cold rolling single: 2.5mm;
E. the Cu-Zr-Ag sheet alloy after cold-rolling treatment is carried out ageing treatment and obtain qualified high casting speed continuous casting machine copper plate of crystallizer mother metal, its technique is as follows:
Aging temp: 400 DEG C, aging time: 6h;
F. utilize numerical control machining center, in conjunction with continuous casting process, the high casting speed continuous casting machine copper plate of crystallizer mother metal prepared is carried out mechanical workout, processes all types of casting mold for continuous casting copper coin.
Embodiment one to five changes the material mixture ratio of Cu-Zr-Ag alloy, and its manufacture craft remains unchanged, and concrete data are as follows:
| Specific embodiment | Brinell hardness | Tensile strength | Unit elongation | Electric conductivity | Softening temperature | Yield strength |
| Embodiment one | 115HB | 340MPa | 25% | 55 | 550℃ | 300MPa |
| Embodiment two | 95HB | 290MPa | 25% | 54 | 510℃ | 240MPa |
| Embodiment three | 110HB | 330MPa | 22% | 48 | 530℃ | 290MPa |
| Embodiment four | 105HB | 320MPa | 23% | 52 | 525℃ | 285MPa |
| Embodiment five | 110HB | 325MPa | 18% | 53 | 520℃ | 280MPa |
As can be seen from the above table when manufacture craft is constant, when metal zirconium mass percent: 0.13%, argent mass percent: 0.11%, reductor MAGNESIUM METAL mass percent: 0.04%, metallic copper mass percent: 99.72%, its Brinell hardness can reach 115HB, tensile strength 340MPa, unit elongation 25%, electric conductivity reaches 55, softening temperature 550 DEG C, yield strength is 300MPa, and its over-all properties is best.
Embodiment six
A preparation technology for Cu-Zr-Ag Crystallizer Alloy copper coin, it comprises the steps:
A. obtain the strand of Cu-Zr-Ag alloy through vacuum melting and vacuum casting, the processing parameter of its alloy formula and vacuum melting and vacuum casting is as follows:
Metal zirconium mass percent: 0.13%, argent mass percent: 0.11%, reductor MAGNESIUM METAL mass percent: 0.04%, metallic copper mass percent: 99.72%,
Refining vacuum tightness :≤30Pa, fire-resistant funnel aperture: 36mm, refining temperature: 1350 DEG C, is filled with argon gas final vacuum degree :-0.08MPa, teeming temperature: 1280 DEG C;
B. after determining forging deformation direction, the strand of Cu-Zr-Ag alloy is carried out forge hot, its technique is as follows:
Forge hot heat-up time: 3h, initial forging temperature: 800 DEG C, forging deformation amount: 28mm, final forging temperature: 630 DEG C;
C. carried out by the strand of the Cu-Zr-Ag alloy after forge hot cold rollingly obtaining Cu-Zr-Ag sheet alloy, its technique is as follows:
Cold rolling total deformation: 18%, the amount of rolling under cold rolling single: 2.5mm;
D. Cu-Zr-Ag sheet alloy is carried out solution treated, its technique is as follows:
Gu melting temperatur: 920 DEG C, admittedly molten time: 1.5h, temperature of cooling water: 25 DEG C, from Time Of Launching of coming out of the stove: 50S;
E. the Cu-Zr-Ag sheet alloy after solution treated is carried out ageing treatment and obtain qualified high casting speed continuous casting machine copper plate of crystallizer mother metal, its technique is as follows:
Aging temp: 400 DEG C, aging time: 6h;
F. utilize numerical control machining center, in conjunction with continuous casting process, the high casting speed continuous casting machine copper plate of crystallizer mother metal prepared is carried out mechanical workout, processes all types of casting mold for continuous casting copper coin.
Embodiment six is that first carry out cold rolling, admittedly melting, concrete data are as follows to admittedly molten and the cold rolling Cu-Zr-Ag alloy taking different sequencings to obtain:
| Embodiment | Brinell hardness | Tensile strength | Unit elongation | Electric conductivity | Softening temperature | Yield strength |
| Embodiment six | 80HB | 230MPa | 24% | 54 | 460℃ | 165MPa |
Cold rollingly as can be seen from the above table be placed on admittedly molten front and carry out, can have an impact to the over-all properties of Cu-Zr-Ag alloy, by obviously finding out that to be placed on cold rolling front be an important improvement to technology by admittedly molten, ensure that the General Promotion of the over-all properties of Cu-Zr-Ag alloy with the contrast of embodiment one.
Embodiment seven
A preparation technology for Cu-Zr-Ag Crystallizer Alloy copper coin, it comprises the steps:
A. obtain the strand of Cu-Zr-Ag alloy through vacuum melting and vacuum casting, the processing parameter of its alloy formula and vacuum melting and vacuum casting is as follows:
Metal zirconium mass percent: 0.13%, argent mass percent: 0.11%, reductor MAGNESIUM METAL mass percent: 0.04%, metallic copper mass percent: 99.72%,
Refining vacuum tightness :≤30Pa, fire-resistant funnel aperture: 36mm, refining temperature: 1350 DEG C, is filled with argon gas final vacuum degree :-0.08MPa, teeming temperature: 1280 DEG C;
B. after determining forging deformation direction, the strand of Cu-Zr-Ag alloy is carried out forge hot, its technique is as follows:
Forge hot heat-up time: 3h, initial forging temperature: 860 DEG C, forging deformation amount: 28mm, final forging temperature: 630 DEG C;
C. the Cu-Zr-Ag sheet alloy after forge hot is carried out solution treated, its technique is as follows:
Gu melting temperatur: 920 DEG C, admittedly molten time: 1.5h, temperature of cooling water: 25 DEG C, from Time Of Launching of coming out of the stove: 50S;
D. carried out by the strand of the Cu-Zr-Ag alloy after admittedly molten cold rollingly obtaining Cu-Zr-Ag sheet alloy, its technique is as follows:
Cold rolling total deformation: 18%, the amount of rolling under cold rolling single: 2.5mm;
E. the Cu-Zr-Ag sheet alloy after cold-rolling treatment is carried out ageing treatment and obtain qualified high casting speed continuous casting machine copper plate of crystallizer mother metal, its technique is as follows:
Aging temp: 400 DEG C, aging time: 6h;
F. utilize numerical control machining center, in conjunction with continuous casting process, the high casting speed continuous casting machine copper plate of crystallizer mother metal prepared is carried out mechanical workout, processes all types of casting mold for continuous casting copper coin.
Embodiment eight
A preparation technology for Cu-Zr-Ag Crystallizer Alloy copper coin, it comprises the steps:
A. obtain the strand of Cu-Zr-Ag alloy through vacuum melting and vacuum casting, the processing parameter of its alloy formula and vacuum melting and vacuum casting is as follows:
Metal zirconium mass percent: 0.13%, argent mass percent: 0.11%, reductor MAGNESIUM METAL mass percent: 0.04%, metallic copper mass percent: 99.72%,
Refining vacuum tightness :≤30Pa, fire-resistant funnel aperture: 36mm, refining temperature: 1350 DEG C, is filled with argon gas final vacuum degree :-0.08MPa, teeming temperature: 1280 DEG C;
B. after determining forging deformation direction, the strand of Cu-Zr-Ag alloy is carried out forge hot, its technique is as follows:
Forge hot heat-up time: 3h, initial forging temperature: 800 DEG C, forging deformation amount: 28mm, final forging temperature: 630 DEG C;
C. the Cu-Zr-Ag sheet alloy after forge hot is carried out solution treated, its technique is as follows:
Gu melting temperatur: 850 DEG C, admittedly molten time: 1.5h, temperature of cooling water: 25 DEG C, from Time Of Launching of coming out of the stove: 50S;
D. carried out by the strand of the Cu-Zr-Ag alloy after admittedly molten cold rollingly obtaining Cu-Zr-Ag sheet alloy, its technique is as follows:
Cold rolling total deformation: 18%, the amount of rolling under cold rolling single: 2.5mm;
E. the Cu-Zr-Ag sheet alloy after cold-rolling treatment is carried out ageing treatment and obtain qualified high casting speed continuous casting machine copper plate of crystallizer mother metal, its aging treatment process is as follows:
Aging temp: 400 DEG C, aging time: 6h;
F. utilize numerical control machining center, in conjunction with continuous casting process, the high casting speed continuous casting machine copper plate of crystallizer mother metal prepared is carried out mechanical workout, processes all types of casting mold for continuous casting copper coin.
Embodiment nine
A preparation technology for Cu-Zr-Ag Crystallizer Alloy copper coin, it comprises the steps:
A. obtain the strand of Cu-Zr-Ag alloy through vacuum melting and vacuum casting, the processing parameter of its alloy formula and vacuum melting and vacuum casting is as follows:
Metal zirconium mass percent: 0.13%, argent mass percent: 0.11%, reductor MAGNESIUM METAL mass percent: 0.04%, metallic copper mass percent: 99.72%,
Refining vacuum tightness :≤30Pa, fire-resistant funnel aperture: 36mm, refining temperature: 1350 DEG C, is filled with argon gas final vacuum degree :-0.08MPa, teeming temperature: 1280 DEG C;
B. after determining forging deformation direction, the strand of Cu-Zr-Ag alloy is carried out forge hot, its thermal forging technology is as follows:
Forge hot heat-up time: 3h, initial forging temperature: 800 DEG C, forging deformation amount: 28mm, final forging temperature: 630 DEG C;
C. the Cu-Zr-Ag sheet alloy after forge hot is carried out solution treated, its solid process of smelting is as follows:
Gu melting temperatur: 920 DEG C, admittedly molten time: 1.5h, temperature of cooling water: 25 DEG C, from Time Of Launching of coming out of the stove: 50S;
D. carried out by the strand of the Cu-Zr-Ag alloy after admittedly molten cold rollingly obtaining Cu-Zr-Ag sheet alloy, its cold-rolling process is as follows:
Cold rolling total deformation: 15%, the amount of rolling under cold rolling single: 2.5mm;
E. the Cu-Zr-Ag sheet alloy after cold-rolling treatment is carried out ageing treatment and obtain qualified high casting speed continuous casting machine copper plate of crystallizer mother metal, its aging treatment process is as follows:
Aging temp: 400 DEG C, aging time: 6h;
F. utilize numerical control machining center, in conjunction with continuous casting process, the high casting speed continuous casting machine copper plate of crystallizer mother metal prepared is carried out mechanical workout, processes all types of casting mold for continuous casting copper coin.
Embodiment ten
A preparation technology for Cu-Zr-Ag Crystallizer Alloy copper coin, it comprises the steps:
A. obtain the strand of Cu-Zr-Ag alloy through vacuum melting and vacuum casting, the processing parameter of its alloy formula and vacuum melting and vacuum casting is as follows:
Metal zirconium mass percent: 0.13%, argent mass percent: 0.11%, reductor MAGNESIUM METAL mass percent: 0.04%, metallic copper mass percent: 99.72%,
Refining vacuum tightness :≤30Pa, fire-resistant funnel aperture: 36mm, refining temperature: 1350 DEG C, is filled with argon gas final vacuum degree :-0.08MPa, teeming temperature: 1280 DEG C;
B. after determining forging deformation direction, the strand of Cu-Zr-Ag alloy is carried out forge hot, its thermal forging technology is as follows:
Forge hot heat-up time: 3h, initial forging temperature: 800 DEG C, forging deformation amount: 28mm, final forging temperature: 630 DEG C;
C. the Cu-Zr-Ag sheet alloy after forge hot is carried out solution treated, its solid process of smelting is as follows:
Gu melting temperatur: 920 DEG C, admittedly molten time: 1.5h, temperature of cooling water: 25 DEG C, from Time Of Launching of coming out of the stove: 50S;
D. carried out by the strand of the Cu-Zr-Ag alloy after admittedly molten cold rollingly obtaining Cu-Zr-Ag sheet alloy, its cold-rolling process is as follows:
Cold rolling total deformation: 18%, the amount of rolling under cold rolling single: 2.5mm;
E. the Cu-Zr-Ag sheet alloy after cold-rolling treatment is carried out ageing treatment and obtain qualified high casting speed continuous casting machine copper plate of crystallizer mother metal, its aging treatment process is as follows:
Aging temp: 450 DEG C, aging time: 4h;
F. utilize numerical control machining center, in conjunction with continuous casting process, the high casting speed continuous casting machine copper plate of crystallizer mother metal prepared is carried out mechanical workout, processes all types of casting mold for continuous casting copper coin.
Embodiment seven is ensure Cu-Zr-Ag alloyed metal zirconium mass percent to embodiment ten: 0.13%, argent mass percent: 0.11%, reductor MAGNESIUM METAL mass percent: 0.04%, metallic copper mass percent: 99.72% constant when processing parameter is changed, compare with embodiment one, can find out affects the overall performance of Cu-Zr-Ag alloy to some extent when processing parameter changes, and can fall low-alloyed each performance.Concrete data are as shown in the table:
| Specific embodiment | Brinell hardness | Tensile strength | Unit elongation | Electric conductivity | Softening temperature | Yield strength |
| Embodiment seven | 115HB | 320MPa | 23% | 54 | 530℃ | 290MPa |
| Embodiment eight | 105HB | 300MPa | 21% | 55 | 510℃ | 260MPa |
| Embodiment nine | 110HB | 320MPa | 22% | 51 | 530℃ | 280MPa |
| Embodiment ten | 105HB | 310MPa | 24% | 52 | 515℃ | 270MPa |
[0026]by the data display of embodiment one to embodiment ten, the present invention is at material mixture ratio, the Performance Parameters of Cu-Zr-Ag alloy is just made to have qualitative leap when technical process and processing parameter triplicity, reach Brinell hardness 115HB, tensile strength 340MPa, unit elongation 25%, electric conductivity 55, softening temperature 550 DEG C, yield strength 300MPa, especially electric conductivity (more much higher than Cu-Cr-Zr), the lifting (significantly improving than Cu-Ag) of softening temperature (significantly improving than Cu-Ag) and Brinell hardness is maximum, improve the heat-conductive characteristic of copper plate of crystallizer, larger gap is pulled open with prior art, ensure that the pulling rate of conventional slab caster promotes greatly.
The present invention adds alloy classification proportioning by innovation, and adopt the techniques such as vacuum melting, vacuum-casting, forge hot, solid molten, cold working hardening, thermal treatment to improve the performance of product material, by the working method of advanced person, thus produce the high life copper plate of crystallizer of a kind of novel high heat conduction, high-temperature resistant performance.The material Cu-Ag of the existing copper plate of crystallizer of its strength ratio of high life copper plate of crystallizer developed is high, and wear resisting property is good, and have higher recrystallization temperature, material high temperature and creep resistance ability is also enhanced; And there is good electrical and thermal conductivity performance, the copper plate of crystallizer Cu-Cr-Zr that its conductivity is traditional far above it; Cu-Zr-Ag Crystallizer Alloy copper coin has the performances such as high thermal conductivity, high strength, high-temperature resistant due to it, thus solve high casting speed continuous casting copper plate of crystallizer hot tearing problem, improve the work-ing life of copper plate of crystallizer, greatly reduce the improper frequency that rolls off the production line of crystallizer, add copper coin and repair number of times, reduce production cost, improve operating rate and the slab quality of continuously cast bloom machine simultaneously, ensure that administration measure runs.The crystallizer that novel C u-Zr-Ag sheet alloy makes is it's the steel life-span 560000 tons that pasts narrow side plate in our factory service condition, it's the steel life-span 1360000 tons pasts width edge plate, the pulling rate of conventional slab caster brings up to 2.8 ~ 3.4m/min, be a kind ofly be applicable to high pulling rate, high-level efficiency, Gao Jie gather, the novel high life copper plate of crystallizer of high production continuous casting work.
Claims (2)
1. a Cu-Zr-Ag Crystallizer Alloy copper coin, it is characterized in that: the metal zirconium containing 0.05% ~ 0.25% quality, the reductor MAGNESIUM METAL of 0.03% ~ 0.05% quality, the argent of 0.06% ~ 0.15% quality, the metallic copper of 99.65% ~ 99.77% quality.
2. a preparation technology for Cu-Zr-Ag Crystallizer Alloy copper coin, is characterized in that: comprise the steps:
A. obtain the strand of Cu-Zr-Ag alloy through vacuum melting and vacuum casting, the processing parameter of its alloy formula and vacuum melting and vacuum casting is as follows:
Metal zirconium mass percent: 0.05% ~ 0.25%,
Argent mass percent: 0.06% ~ 0.15%,
Reductor MAGNESIUM METAL mass percent: 0.03% ~ 0.05%,
Metallic copper mass percent: 99.65% ~ 99.77%,
Refining vacuum tightness :≤30Pa,
Fire-resistant funnel aperture: 36mm,
Refining temperature: 1350 DEG C,
Be filled with argon gas final vacuum degree :-0.08MPa,
Teeming temperature: 1270 DEG C ~ 1280 DEG C;
B. after determining forging deformation direction, the strand of Cu-Zr-Ag alloy is carried out forge hot, its thermal forging technology is as follows:
Forge hot heat-up time: 2.5h ~ 3h,
Initial forging temperature: 800 DEG C ~ 860 DEG C,
Forging deformation amount: 25mm ~ 30mm,
Final forging temperature: 600 DEG C ~ 650 DEG C;
C. the Cu-Zr-Ag sheet alloy after forge hot is carried out solution treated, its solid process of smelting is as follows:
Gu melting temperatur: 850 DEG C ~ 950 DEG C,
Admittedly molten time: 1h ~ 2h,
Temperature of cooling water: 20 DEG C ~ 30 DEG C,
From Time Of Launching of coming out of the stove: 30S ~ 60S;
D. carried out by the strand of the Cu-Zr-Ag alloy after admittedly molten cold rollingly obtaining Cu-Zr-Ag sheet alloy, its cold-rolling process is as follows:
Cold rolling total deformation: 15% ~ 20%,
The amount of rolling under cold rolling single: 2.5mm;
E. the Cu-Zr-Ag sheet alloy after cold-rolling treatment is carried out ageing treatment and obtain qualified high casting speed continuous casting machine copper plate of crystallizer mother metal, its aging treatment process is as follows:
Aging temp: 360 DEG C ~ 500 DEG C,
Aging time: 3h ~ 6h.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111621665A (en) * | 2020-06-16 | 2020-09-04 | 西安斯瑞先进铜合金科技有限公司 | Preparation method of copper-zirconium end ring material for train asynchronous motor |
| CN112055755A (en) * | 2018-09-14 | 2020-12-08 | Kme特殊产品有限公司 | Use of copper alloys |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58210140A (en) * | 1982-06-01 | 1983-12-07 | Sumitomo Electric Ind Ltd | Heat resistant conductive copper alloy |
| JPS62182239A (en) * | 1986-02-06 | 1987-08-10 | Mitsubishi Metal Corp | Cu alloy for continuous casting mold |
| CN101717876A (en) * | 2009-12-16 | 2010-06-02 | 北京有色金属研究总院 | Chrome zirconium copper alloy and preparing and processing method thereof |
| CN101984106A (en) * | 2010-11-10 | 2011-03-09 | 河南通宇冶材集团有限公司 | Low silver-copper alloy board for thin slab continuous casting crystallizer and manufacturing method thereof |
| CN102876914A (en) * | 2012-09-03 | 2013-01-16 | 西峡龙成特种材料有限公司 | Process for preparing CuZr alloy for crystallizer copper plate parent metal of high-pulling-speed continuous casting machine |
-
2015
- 2015-05-18 CN CN201510251678.1A patent/CN104846234B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58210140A (en) * | 1982-06-01 | 1983-12-07 | Sumitomo Electric Ind Ltd | Heat resistant conductive copper alloy |
| JPS62182239A (en) * | 1986-02-06 | 1987-08-10 | Mitsubishi Metal Corp | Cu alloy for continuous casting mold |
| CN101717876A (en) * | 2009-12-16 | 2010-06-02 | 北京有色金属研究总院 | Chrome zirconium copper alloy and preparing and processing method thereof |
| CN101984106A (en) * | 2010-11-10 | 2011-03-09 | 河南通宇冶材集团有限公司 | Low silver-copper alloy board for thin slab continuous casting crystallizer and manufacturing method thereof |
| CN102876914A (en) * | 2012-09-03 | 2013-01-16 | 西峡龙成特种材料有限公司 | Process for preparing CuZr alloy for crystallizer copper plate parent metal of high-pulling-speed continuous casting machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112055755A (en) * | 2018-09-14 | 2020-12-08 | Kme特殊产品有限公司 | Use of copper alloys |
| US20210214828A1 (en) * | 2018-09-14 | 2021-07-15 | Kme Special Products Gmbh | Use of a copper alloy |
| CN111621665A (en) * | 2020-06-16 | 2020-09-04 | 西安斯瑞先进铜合金科技有限公司 | Preparation method of copper-zirconium end ring material for train asynchronous motor |
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