CN1899755A - Method for producing nickel belt - Google Patents
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- CN1899755A CN1899755A CN 200510036115 CN200510036115A CN1899755A CN 1899755 A CN1899755 A CN 1899755A CN 200510036115 CN200510036115 CN 200510036115 CN 200510036115 A CN200510036115 A CN 200510036115A CN 1899755 A CN1899755 A CN 1899755A
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Abstract
The nickel belt producing process includes rolling, annealing the semi-finished product, re-rolling, annealing the product and other steps. The said production process can ensure the high purity and low internal resistance of the nickel belt for meeting the requirement of producing battery. At the same time, the said production process is simple, low in production cost, low in power consumption, short production period and high in production efficiency.
Description
Technical field
The present invention relates to a kind of manufacture method of metal nickel strap, more particularly, relate to a kind of method of directly making nickel strap with sheet nickel.
Background technology
Metallic nickel thin plate (being nickel strap) extensively uses the electronic product manufacturing as raw material, as in the manufacturing of electronic products such as battery of mobile phone, electronic circuit board, bulb, needs a large amount of utilization nickel straps.Physical parameters such as the thickness of nickel strap, purity and ductility are that influence is the key factor of the electronic product quality of raw material with it.Along with the miniaturization of electronic product and the development trend of high performance, physical parameters such as thickness, purity and ductility to nickel strap have proposed more and more higher requirement, require thinner thickness, higher purity and better ductility, electric conductivity, lower resistance value.
Because of hydrogeneous, sulphur composition height, fragility is big, toughness is little, can not be rolling as raw-material sheet nickel.At present, the metal nickel strap is to adopt traditional process to produce, as shown in Figure 1, the conventional method of producing the metal nickel strap is: earlier with sheet nickel through cut, vacuum melting is cast into the nickel ingot, through heating behind the planing surface, carry out hot rolling, semi-finished product after the hot rolling are carried out pickling, after carrying out repeatedly cold rolling, calendering, annealing and pickling, reaching specific thickness, carry out itemize then, then finished product is annealed, pack at last and finish.
There are the following problems for this traditional nickel strap production technology:
1. in the process procedure of melting ingot casting, according to technological requirement, need to add auxiliary materials such as iron, manganese, titanium, silicon, carbon, rare earth, make that impurity content increases in the product, impurity content in its finished product beyond nickel, the cobalt reaches about 0.5%, so just greatly reduce the purity of material, make the internal resistance of nickel strap increase, be difficult to the high-purity that obtains to meet the demands, the nickel strap of low internal resistance;
2. production link is many, and equipment investment is big, needs the production floor space big;
Production cycle long, generally need 7 day time from being dosed into out finished product, production efficiency is low;
4. the energy consumption height at melting, hot-rolled process, consumes a large amount of electric energy, about 7000 yuan/ton of the power consumption cost that manufactures a finished product.
5. in fusion process, because high temperature (more than 1500 ℃) influence causes the loss more than 2%;
Although the conventional method of above-mentioned manufacturing nickel strap exists many defectives and deficiency, in decades, be to continue to use the production that above-mentioned conventional method is carried out nickel strap always, new alternative method does not appear as yet.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of nickel strap manufacture method is provided, directly adopt highly purified electrolytic nickel raw material plate to roll the manufacturing nickel strap, overcome the reduction nickel strap purity that has classical production process now and bring, the defective that causes the nickel strap internal resistance to increase, also overcome the defective that energy consumption height, production efficiency are low, equipment investment is big that existing manufacture method exists simultaneously.
The present invention realizes that the technical scheme that the foregoing invention purpose is adopted is: a kind of nickel strap manufacture method is characterized in that this method comprises the steps:
S1, carry out annealing in process after the electrolytic nickel raw material plate cut into required specification;
S2, then the electrolytic nickel raw material plate is rolled, to suitable semi-finished product thickness;
S3, the semi-finished product nickel strap is carried out annealing in process;
S4, the semi-finished product nickel strap through annealing in process is rolled, to the customer requirement finished product thickness;
S5, to cleaning through rolling semi-finished product nickel strap;
S6, according to the requirement of client to the product mechanical property, the moulding nickel strap is carried out annealing in process.
Above-mentioned nickel strap manufacture method is characterized in that: among the affiliated step S1, the raw material annealing temperature is between 300 ℃ to 450 ℃, is incubated 10 to 5 hours; Among the described step S6, the annealing of moulding nickel strap adopts well formula annealing furnace to heat-treat, and the annealing in process parameter is as follows:
| Thickness (millimeter) | Heating-up temperature ℃ | Constant temperature time (hour) | The hardness of coming out of the stove (HV) |
| 0.07～0.10 | 360±10 | 6 | 70～110 |
| 0.10～0.15 | 370±10 | 7 | 70～110 |
| 0.15～0.25 | 380±10 | 7 | 70～110 |
| 0.25～0.35 | 385±10 | 8 | 70～110 |
Described step S3, S4 can repeat as required, until the finished product thickness of customer requirement.
Above-mentioned nickel strap manufacture method is characterized in that: well formula inert gas atmosphere protection furnace annealing is adopted in described step S3 semi-finished product nickel strap annealing, and parameter is as follows:
| Thickness (millimeter) | Heating-up temperature ℃ | Constant temperature time (hour) | The hardness of coming out of the stove (HV) |
| 0.15 | 380±20 | 7 | 70~110 |
| 0.25 | 380±20 | 7 | 70~110 |
| 0.35 | 380±20 | 8 | 70~110 |
| 0.4 | 400±20 | 4 | 70~110 |
| 0.45 | 400±20 | 4 | 70~110 |
| 0.5 | 400±20 | 4 | 70~110 |
| 1.05 | 400±20 | 4 | 70~110 |
Above-mentioned nickel strap manufacture method, it is characterized in that: the annealing of tunnel type hydrogen reduction annealing furnace is adopted in described step S3 semi-finished product nickel strap annealing, setting annealing furnace charging petiolarea, Zhong Qu, discharging petiolarea annealing temperature are respectively 700 ± 50 ℃, 750 ± 50 ℃, 700 ± 50 ℃, and nickel strap thickness and temperature retention time are closed and be:
| Thickness (millimeter) | 05 | 0.45 | 0.4 | 0.35 | 0.3 | 0.25 | 0.22 | 0.2 | 0.18 | 0.16 | 0.13 | 0.11 |
| Walking speed (rice/minute) | 1.4 3～1 .56 | 1.5 6～1 .69 | 1.6 9～1 .82 | 1.9 5～2 .08 | 2.3 4～2 .47 | 2.6 ～2. 73 | 2.8 6～2 .99 | 3.1 2～3 .25 | 3.2 5～3 .38 | 3.2 5～3 .38 | 3.3 8～3 .51 | 3.7 7～3 .9 |
Above-mentioned nickel strap manufacture method is characterized in that: between described step S5 and S6, also comprise according to width specifications the semi-finished product nickel strap after cleaning is carried out itemize; Behind step S6, also comprise the finished product nickel strap is packed.
Above-mentioned nickel strap manufacture method is characterized in that: rolling process comprises electrolytic nickel raw material plate repeat-rolling among the described step S2, after cleaning, annealing, carries out repeat-rolling again, carries out so repeatedly; After described cleaning adopts the alkaline degreasing powder that the finished product nickel strap is carried out the electrolytic degreasing processing, the washing oven dry.
Above-mentioned nickel strap manufacture method, it is characterized in that: described step S2 also is included in described rolling process the nickel plate is rolled down to can twine a certain thickness before rolling of one-level before the thickness time, with polylith nickel plate head and the tail butt joint welding successively, connect into the nickel plate that complete head and the tail separate.
Above-mentioned nickel strap manufacture method is characterized in that: semi-finished product annealing also can be adopted resistance furnace annealing among the described step S3.
Above-mentioned nickel strap manufacture method is characterized in that: finished products adopts well formula inert gas atmosphere protection furnace annealing among the described step S3, and protective gas is an argon gas.
The beneficial effect of technical solution of the present invention is:
1. guarantee the high-purity and the low internal resistance of nickel strap.This method directly adopts high-purity nickel plate raw material to be rolled, and has saved the melting in the traditional handicraft, planing surface, hot-rolled process and equipment thereof, has reduced equipment investment cost and workshop floor space; The more important thing is, having avoided adding in fusion process auxiliary material causes nickel plate purity to descend, the defective that internal resistance increases, this method does not change the inherent material composition of nickel strap, its nickel, cobalt content have guaranteed the high-purity of nickel strap, low internal resistance (nickel strap of producing than traditional handicraft hangs down about 15%) more than 99.93%;
2. reduced production cost.This method has been saved the melting operation of high energy consumption, reduced in the fusion process by 2% spillage of material, reduce spillage of material approximately and be worth 3000 yuan/T, and reduced multiple working procedure, greatly reduce energy consumption, the energy consumption of finished product is by about 7000 yuan of/ton about 2500 yuan/ton of dropping to new process of the power consumption expense of old process; The old process that do not need new process adopts the needed auxiliary material of vacuum melting to play crucible, protective gas, mould etc., saves about 1500 yuan/ton of cost; In addition, new process makes a production line reduce about 10 operators, has reduced cost of labor.
3. the production cycle shortens greatly.Because of having reduced multiple working procedure, the production cycle only needs 3 days by the traditional handicraft method from what be dosed into out that finished product reduced to new process in 7 days consuming time, and the production cycle shortens over half.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the traditional processing technology method flow diagram of nickel strap;
Fig. 2 is the flow chart of process embodiment 1,2,3 of the present invention;
Fig. 3 is the flow chart of process embodiment 4 of the present invention;
Fig. 4 is the flow chart of process embodiment 5 of the present invention.
The specific embodiment
Process of the present invention directly adopts the high-purity sheet nickel to be rolled.Milling train specification cited in the present embodiment can substitute with the milling train of close specification.
Embodiment 1:
As shown in Figure 2, present embodiment comprises the steps:
A. the high-purity sheet nickel is cut;
B. the sheet nickel of cutting is heated to 300 ℃, is incubated 10 hours, carry out the raw material annealing in process, fully separate out harmful substances such as hydrogen in the sheet nickel, sulphur, improve material property, reduce fragility, improve toughness; Can adopt resistance furnace (to comprise well formula or horizontal inert gas atmosphere protection stove, inert gas can adopt argon gas, nitrogen etc., following semi-finished product, finished products well formula inert gas atmosphere protection stove is also identical), or diesel combustion cabinet formula heating furnace carries out annealing in process;
C. to being rolled through pretreated sheet nickel; The rolling repeat-rolling that comprises is so that the thickness of nickel plate progressively is rolled down to the semi-finished product thickness of production technology plan.Rolling as the first round is breaking down, and it is 1.2 to 3 millimeters through repeat-rolling to thickness that utilization _ 200-_250 milling train is 13 to 30 millimeters with the electrolytic nickel raw material plate by thickness, carries out semi-finished product annealing again.When a certain thickness that the nickel plate is rolled down to before twining thickness preceding once rolling, (this thickness can be decided on the plan of rolling process as 2.5 millimeters, condition is can twine after rolling), can be with polylith nickel plate head and the tail butt joint welding successively, connect into the nickel strap that complete head and the tail separate, second wheel rolling rolls in being, utilization _ 120 or-160 milling trains are that 1.2 to 3 millimeters semi-finished product are 0.35 millimeter through repeat-rolling to thickness with thickness, carrying out semi-finished product annealing then, is that 0.35 millimeter repeat-rolling is to the required thickness specification of technology by thickness again.The number of times of above-mentioned semi-finished product annealing decide on semi-finished product hardness in the operation of rolling, generally when semi-finished product hardness during greater than 170HV, need carry out semi-finished product and anneal.
The half-finished product plate annealing in process can adopt well formula inert gas atmosphere protection furnace annealing, and annealing back hardness is 70 ~ 110HV, and annealing temperature and constant temperature time are decided on semi-finished product thickness, and it concerns as table 1:
Table 1
| Thickness (millimeter) | Heating-up temperature ℃ | Constant temperature time (hour) | The hardness of coming out of the stove (HV) |
| 0.15 | 380±20 | 7 | 70~110 |
| 0.25 | 380±20 | 7 | 70~110 |
| 0.35 | 380±20 | 8 | 70~110 |
| 0.4 | 400±20 | 4 | 70~110 |
| 0.45 | 400±20 | 4 | 70~110 |
| 0.5 | 400±20 | 4 | 70~110 |
| 1.05 | 400±20 | 4 | 70~110 |
Also can adopt the annealing of tunnel type hydrogen reduction annealing furnace, hydrogen reduction annealing can be removed the greasy dirt on nickel strap surface, guarantees the fineness on nickel strap surface, carries out according to table 2 parameter:
Table 2
| Thickness (millimeter) | Design temperature ℃ | Walking speed (rice/minute) | ||
| 1 (feed end) district | 2 (in) district | 3 (discharge ends) district | ||
| 0.5 | 700±50 | 750±50 | 700±50 | 1.43～1.56 |
| 0.45 | 700±50 | 750±50 | 700±50 | 1.56～1.69 |
| 0.4 | 700±50 | 750±50 | 700±50 | 1.69～1.82 |
| 0.35 | 700±50 | 750±50 | 700±50 | 1.95～2.08 |
| 0.3 | 700±50 | 750±50 | 700±50 | 2.34～2.47 |
| 0.25 | 700±50 | 750±50 | 700±50 | 2.6～2.73 |
| 0.22 | 700±50 | 750±50 | 700±50 | 2.86～2.99 |
| 0.2 | 700±50 | 750±50 | 700±50 | 3.12～3.25 |
| 0.18 | 700±50 | 750±50 | 700±50 | 3.25～3.38 |
| 0.16 | 700±50 | 750±50 | 700±50 | 3.25～3.38 |
| 0.13 | 700±50 | 750±50 | 700±50 | 3.38～3.51 |
| 0.11 | 700±50 | 750±50 | 700±50 | 3.77～3.9 |
D. the semi-finished product nickel strap is carried out repeat-rolling, until the customer requirement finished product thickness; Can adopt _ 90 milling trains are different finished product thicknesses through repeat-rolling to thickness with semi-finished product;
E. to cleaning through rolling semi-finished product nickel strap;
F. the moulding nickel strap is carried out annealing in process, adopt well formula inert gas atmosphere protection furnace annealing, argon shield, annealing back hardness is 70 ~ 110HV, and annealing temperature and constant temperature time are decided on finished product thickness, and it concerns as table 3:
Table 3
| Thickness (millimeter) | Heating-up temperature ℃ | Constant temperature time (hour) | The hardness of coming out of the stove (HV) |
| 0.07～0.10 | 360±10 | 6 | 70～110 |
| 0.10～0.15 | 370±10 | 7 | 70～110 |
| 0.15～0.25 | 380±10 | 7 | 70～110 |
| 0.25～0.35 | 385±10 | 8 | 70～110 |
Embodiment 2:
As shown in Figure 2, present embodiment is identical with embodiment 1 step, distinguishes only for heating-up temperature is 410 ℃ constant temperature 7 hours.
Embodiment 3:
As shown in Figure 2, present embodiment is identical with embodiment 1 step, distinguishes only for heating-up temperature is 450 ℃ constant temperature 5 hours.
More than among 3 embodiment, finished products heating-up temperature tolerance is controlled at ± 5 ℃, can obtain treatment effect preferably.
Embodiment 4:
As shown in Figure 3, present embodiment comprises the steps:
A. according to the required finished width in family behind the visitor electrolytic nickel raw material plate is cut,, semi-finished product are cut into finished width, reduce waste of material so that in subsequent step;
B. the high-purity sheet nickel is carried out the raw material annealing in process;
C. to being rolled through pretreated sheet nickel; The rolling repeat-rolling that comprises cleans then, anneals, so that the thickness of nickel plate progressively is rolled down to the semi-finished product thickness of the production schedule;
D. the semi-finished product nickel strap is carried out annealing in process;
E. the semi-finished product nickel strap is carried out repeat-rolling, until the customer requirement finished product thickness;
F. the semi-finished product nickel strap is cleaned, after employing alkaline degreasing powder carries out the electrolytic degreasing processing with the finished product nickel strap, the washing oven dry;
G. according to the customer requirement width specifications semi-finished product nickel strap after cleaning is carried out itemize; Can adopt circle shear to carry out itemize;
H. the moulding nickel strap is carried out annealing in process;
I. the finished product nickel strap is packed.
Embodiment 5:
As shown in Figure 4, present embodiment is identical with embodiment 4, and difference is: according to the requirement of client to the product mechanical property, can directly carry out the finished product packing operation behind itemize, and not need to carry out moulding nickel strap annealing in process.
Adopt technical solution of the present invention, can realize:
1 guarantees the high-purity and the low internal resistance of nickel strap.This method directly adopts high-purity nickel plate raw material to be rolled, and has saved the melting in the traditional handicraft, planing surface, hot-rolled process and equipment thereof, has reduced equipment investment cost and workshop floor space; The more important thing is, having avoided adding in fusion process auxiliary material causes nickel plate purity to descend, the defective that internal resistance increases, this method does not change the inherent material composition of nickel strap, its nickel, cobalt content have guaranteed the high-purity of nickel strap, low internal resistance (nickel strap of producing than traditional handicraft hangs down about 15%) more than 99.93%;
2 reduce production costs.This method has been saved the melting operation of high energy consumption, reduced in the fusion process by 2% spillage of material, nickel calculates by 150,000/T, reduce spillage of material approximately and be worth 3000 yuan/T, and reduced multiple working procedure, greatly reduce energy consumption, the energy consumption of finished product is by about 7000 yuan of/ton about 2500 yuan/ton of dropping to new process of the power consumption expense of old process; The old process that do not need new process adopts the needed auxiliary material of vacuum melting to play crucible, protective gas, mould etc., saves about 1500 yuan/ton of cost; In addition, new process makes a production line reduce about 10 operators, has reduced cost of labor.
3 production cycles shortened greatly.Because of having reduced multiple working procedure, the production cycle only needs 3 days by the traditional handicraft method from what be dosed into out that finished product reduced to new process in 7 days consuming time, and the production cycle shortens over half.
Claims (9)
1, a kind of nickel strap manufacture method is characterized in that, this method comprises the steps:
S1, carry out annealing in process after the electrolytic nickel raw material plate cut into required specification;
S2, then the electrolytic nickel raw material plate is rolled, to suitable semi-finished product thickness;
S3, the semi-finished product nickel strap is carried out annealing in process;
S4, the semi-finished product nickel strap through annealing in process is rolled, to the customer requirement finished product thickness:
S5, to cleaning through rolling semi-finished product nickel strap;
S6, according to the requirement of client to the product mechanical property, the moulding nickel strap is carried out annealing in process.
2, nickel strap manufacture method according to claim 1 is characterized in that: among the affiliated step S1, raw material annealing adopts bell type annealing furnace to heat-treat, and annealing temperature is between 300 ℃ to 450 ℃, is incubated 10 to 5 hours; Among the described step S6, the annealing of moulding nickel strap adopts well formula annealing furnace to heat-treat, and the annealing in process parameter is as follows:
Thickness (millimeter) Heating-up temperature ℃ Constant temperature time (hour) The hardness of coming out of the stove (HV)
0.07～0.10 360±10 6 70～110
0.10～0.15 370±10 7 70～110
0.15～0.25 380±10 7 70～110
0.25～0.35 385±10 8 70～110
Described step S3, S4 can repeat as required, until the finished product thickness of customer requirement.
3, nickel strap manufacture method according to claim 2 is characterized in that: well formula inert gas atmosphere protection furnace annealing is adopted in described step S3 semi-finished product nickel strap annealing, and parameter is as follows:
Thickness (millimeter) Heating-up temperature ℃ Constant temperature time (hour) The hardness of coming out of the stove (HV)
0.15 380±20 7 70~110
0.25 380±20 7 70~110
0.35 380±20 8 70~110
0.4 400±20 4 70~110
0.45 400±20 4 70~110
0.5 400±20 4 70~110
1.05 400±20 4 70~110
4, nickel strap manufacture method according to claim 2, it is characterized in that: the annealing of tunnel type hydrogen reduction annealing furnace is adopted in described step S3 semi-finished product nickel strap annealing, setting annealing furnace charging petiolarea, Zhong Qu, discharging petiolarea annealing temperature are respectively 700 ± 50 ℃, 750 ± 50 ℃, 700 ± 50 ℃, and nickel strap thickness and temperature retention time are closed and be:
Thickness (millimeter) 05 0.45 0.4 0.35 0.3 0.25 0.22 0.2 0.18 0.16 0.13 0.11
Walking speed (rice minute) 1.4 3～1 .56 1.5 6～1 .69 1.6 9～1 .82 1.9 5～2 .08 2.3 4～2 .47 2.6 ～2. 73 2.8 6～2 .99 3.1 2～3 .25 3.2 5～3 .38 3.2 5～3 .38 3.3 8～3 .51 3.7 7～3 .9
5, according to each described nickel strap manufacture method of claim 1 to 4, it is characterized in that: between described step S5 and S6, also comprise according to width specifications the semi-finished product nickel strap after cleaning is carried out itemize; Behind step S6, also comprise the finished product nickel strap is packed.
6, nickel strap manufacture method according to claim 5 is characterized in that: rolling process comprises electrolytic nickel raw material plate repeat-rolling among the described step S2, after cleaning, annealing, carries out repeat-rolling again, carries out so repeatedly; After described cleaning adopts the alkaline degreasing powder that the finished product nickel strap is carried out the electrolytic degreasing processing, the washing oven dry.
7, nickel strap manufacture method according to claim 6, it is characterized in that: described step S2 also is included in described rolling process the nickel plate is rolled down to can twine a certain thickness before rolling of one-level before the thickness time, with the head and the tail welding successively of polylith nickel plate, connect into the nickel strap that complete head and the tail separate.
8, nickel strap manufacture method according to claim 7 is characterized in that: semi-finished product annealing also can be adopted resistance furnace annealing among the described step S3.
9, according to each described nickel strap manufacture method of claim 6 to 8, it is characterized in that: finished products adopts well formula inert gas atmosphere protection furnace annealing among the described step S3, and protective gas is an argon gas.
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|---|---|---|---|
| CNB2005100361157A CN100462194C (en) | 2005-07-20 | 2005-07-20 | Method for producing nickel belt |
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|---|---|---|---|
| CNB2005100361157A CN100462194C (en) | 2005-07-20 | 2005-07-20 | Method for producing nickel belt |
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| CN100462194C CN100462194C (en) | 2009-02-18 |
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| CN100569986C (en) * | 2007-12-27 | 2009-12-16 | 长沙矿冶研究院 | Tissue adjustment and degassing process of electrolytic nickel plate |
| CN102350439A (en) * | 2011-09-23 | 2012-02-15 | 宁波江丰电子材料有限公司 | Hot rolling method for nickel target billet used for semiconductor |
| CN102581002A (en) * | 2012-02-23 | 2012-07-18 | 西部钛业有限责任公司 | Method for preparing pure nickel sheet |
| CN102672447A (en) * | 2011-03-17 | 2012-09-19 | 沈翠珊 | Manufacturing method of high-purity nickel strap |
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| CN100569986C (en) * | 2007-12-27 | 2009-12-16 | 长沙矿冶研究院 | Tissue adjustment and degassing process of electrolytic nickel plate |
| CN102917812B (en) * | 2010-03-05 | 2015-08-19 | 特奥多尔·斯图斯 | For the preparation of the method for nickel strap |
| CN102917812A (en) * | 2010-03-05 | 2013-02-06 | 特奥多尔·斯图斯 | Method for making nickle strip |
| CN102672447A (en) * | 2011-03-17 | 2012-09-19 | 沈翠珊 | Manufacturing method of high-purity nickel strap |
| CN102672447B (en) * | 2011-03-17 | 2014-04-30 | 沈翠珊 | Manufacturing method of high-purity nickel strap |
| CN102350439A (en) * | 2011-09-23 | 2012-02-15 | 宁波江丰电子材料有限公司 | Hot rolling method for nickel target billet used for semiconductor |
| CN102350439B (en) * | 2011-09-23 | 2014-04-23 | 宁波江丰电子材料有限公司 | Hot rolling method for nickel target billet used for semiconductor |
| CN102581002A (en) * | 2012-02-23 | 2012-07-18 | 西部钛业有限责任公司 | Method for preparing pure nickel sheet |
| CN102581002B (en) * | 2012-02-23 | 2014-02-26 | 西部钛业有限责任公司 | Method for preparing pure nickel sheet |
| CN104525559A (en) * | 2014-12-23 | 2015-04-22 | 湖南湘投金天钛金属有限公司 | Method and device for rolling wide nickel strip coil based on twenty-high roll mill |
| CN107699829A (en) * | 2017-10-23 | 2018-02-16 | 金川集团股份有限公司 | A kind of preparation method of high-purity cobalt Strip |
| CN108838620A (en) * | 2018-06-13 | 2018-11-20 | 黄奎 | A kind of manufacturing method of pure nickel band |
| CN110328236A (en) * | 2019-07-22 | 2019-10-15 | 镇江龙源铝业有限公司 | A kind of milling method applied to overlength ultra-narrow aluminium strip |
| CN111097799A (en) * | 2019-12-30 | 2020-05-05 | 兰州理工大学 | Short-process rolling method of nickel strip |
| CN111097799B (en) * | 2019-12-30 | 2021-06-18 | 兰州理工大学 | Short-process rolling method of nickel strip |
| CN111530961A (en) * | 2020-05-09 | 2020-08-14 | 江苏远航精密合金科技股份有限公司 | Method for preparing ultra-high-purity nickel strip in short process |
| CN111876705A (en) * | 2020-07-13 | 2020-11-03 | 安徽恒均粉末冶金科技股份有限公司 | Preparation process of nickel strap |
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