CN106048300A - Nickel brass strip and manufacturing method thereof - Google Patents
Nickel brass strip and manufacturing method thereof Download PDFInfo
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- CN106048300A CN106048300A CN201610457338.9A CN201610457338A CN106048300A CN 106048300 A CN106048300 A CN 106048300A CN 201610457338 A CN201610457338 A CN 201610457338A CN 106048300 A CN106048300 A CN 106048300A
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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
- C22C9/04—Alloys based on copper with zinc as the next major constituent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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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
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
Abstract
The invention discloses a nickel brass strip. The nickel brass strip comprises, by weight percentage, 67%-73% of Cu, 2%-4.5% of Ni, 0.003%-0.015% of P, not larger than 0.01% of Pb, not larger than 0.012% of Fe and the balance Zn and inevitable impurities. According to the nickel brass strip, by optimizing the components and the content of the nickel brass strip, the corrosion resistance and wear resistance of the nickel brass strip are improved remarkably. The invention further provides a manufacturing of the nickel brass strip.
Description
Technical field
The present invention relates to copper material processing technique field, especially relate to a kind of nickel yellow copper strips and preparation method thereof.
Background technology
Along with the continuous expansion of copper alloy products range of application, the highest performance is proposed the performance of copper alloy band
Requirement, the rotproofness of Benedict metal generally used now and wearability the most increasingly cannot meet the development of materials application and want
Asking, major part uses horizontal casting to produce simultaneously.
Therefore, the nickel brass how providing a kind of rotproofness and wearability higher is that current those skilled in the art need solution badly
Technical problem certainly.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of nickel yellow copper strips, the rotproofness of this nickel yellow copper strips is with wearability relatively
High, it is possible to preferably to meet serviceability and the requirement in service life to nickel yellow copper strips in current actual production.The present invention's
Another object is to provide the preparation method of a kind of nickel yellow copper strips.
For solving above-mentioned technical problem, the technical scheme that the present invention provides is:
A kind of nickel yellow copper strips, including following components in percentage by weight: the Cu of 67%～73%, the Ni of 2%～4.5%,
The P of 0.003%～0.015%, Pb≤0.01, Fe≤0.012%, surplus is Zn and inevitable impurity.
The present invention also provides for the preparation method of a kind of above-mentioned nickel yellow copper strips, comprises the following steps:
1) founding: founding uses intermediate frequency furnace to carry out semi-continuous casting, uses phosphor copper to carry out deoxidation degasification, casting
Using and be dried Borax covering, described smelting temperature is 1200 DEG C～1250 DEG C, and casting temperature is 1100 DEG C～1130 DEG C；
Obtaining slab, described slab includes following components in percentage by weight: the Cu of 67%～73%, 2%～4.5%
Ni, the P of 0.003%～0.015%, Pb≤0.01, Fe≤0.012%, surplus is Zn and inevitable impurity；
2) hot rolling: by step 1) slab that obtains heats at 800 DEG C～890 DEG C, and temperature retention time is 1h～5h, hot rolling
Water-cooled, finishing temperature is 350 DEG C～550 DEG C, and total deformation is 80%～96%, obtains the slab of 14mm～20mm；
3) milling face: by step 2) slab that obtains after hot rolling carries out the process of milling face, and milling amount is one side 0.5mm～1.0mm,
Milling Speed ＜ 5m/min, after milling, precision is longitudinal thickness tolerance+0.1mm, and transverse gage tolerance is ± 0.05mm；
4) cold rolling: by step 3) slab that obtains behind milling face carries out cold-rolling treatment, obtains copper strips；
5) recrystallization annealing: by step 4) cold rolling after the copper strips that obtains carry out at recrystallization annealing at bell-type annealing furnace
Reason, point bringing-up section, soaking zone and cooling section in annealing process, bringing-up section is heated to 450 DEG C～550 DEG C, heating rate >=120
DEG C/h, soaking zone is insulation 4 hours～5 hours, and cooling section makes copper strip tapping temperature less than 70 DEG C through air-cooled, water-cooled；
6) finishing processes: by step 5) copper strips after recrystallization annealing is carried out processing successively, stretch-bending straightening process with
And slitting finishing processes, obtain finished product nickel yellow copper strips.
Preferably, step 1) in, during semi-continuous casting, after forming green shell, slab is comprised in slab liquid
Draw crystallizer under the state of liquation, then utilize roll-in mode that the slab comprising liquid liquation in it is carried out at crimp
Reason, thickness of slab deflection is 20mm～50mm.
Preferably, step 2) in before hot rolling, by step 1) slab that obtains heats in walking-beam furnace.
The Advantageous Effects of the present invention is:
1. present invention process is simple, uses semi-continuous casting to produce, and available existing equipment direct plunges into production, produces into
This is low, easily accomplishes scale production, has good industrial prospect.
2. the invention reside in other nickel brass to compare there is good combination property, there is higher intensity and wear-resisting
Property, corrosion resistance.Hot-working and cold-forming property are easy to realize.
3. the present invention is in step 1) in, during semi-continuous casting, after forming green shell, slab is comprised in slab liquid
Draw crystallizer under the state of state liquation, then utilize roll-in mode that the slab comprising liquid liquation in it is carried out crimp
Processing, total deformation is 20mm～50mm, and the present invention just ties slab pull-out in the case of also comprising liquid liquation in green shell
Brilliant device, improves casting speed, and by roll-in mode, slab is carried out crimp process at this moment, oppress the liquid in green shell
Liquation backflow crystallizer, thus optimize the liquation flow field in crystallizer, improve the internal soundness of slab；And use roller at this moment
Pressure mode carries out crimp process to slab, owing to the inside of green shell is still liquid so that use less downforce just may be used
To obtain bigger extrusion deformation degree, alleviate center porosity and center segregation, improve the internal soundness of slab so that slab
Closer to end form size, reduce subsequent hot rolled and cold rolling rolling pass and rolling reduction, from whole nickel yellow copper strips
Simplify technological process in flow process angle, improve castability, provide cost savings.
Detailed description of the invention
In order to be further appreciated by the present invention, below in conjunction with embodiment, the preferred embodiment of the invention is described, but
Should be appreciated that these descriptions simply further illustrate inventive feature and advantage rather than the limit to the claims in the present invention
System.
The invention provides a kind of nickel yellow copper strips, including following components in percentage by weight: the Cu of 67%～73%, 2%
～the Ni of 4.5%, the P of 0.003%～0.015%, Pb≤0.01, Fe≤0.012%, surplus is Zn and the most miscellaneous
Matter.
The present invention also provides for the preparation method of the nickel yellow copper strips described in a kind of above-mentioned any one, comprises the following steps:
1) founding: founding uses intermediate frequency furnace to carry out semi-continuous casting, uses phosphor copper to carry out deoxidation degasification, casting
Using and be dried Borax covering, described smelting temperature is 1200 DEG C～1250 DEG C, and casting temperature is 1100 DEG C～1130 DEG C；
Obtaining slab, described slab includes following components in percentage by weight: the Cu of 67%～73%, 2%～4.5%
Ni, the P of 0.003%～0.015%, Pb≤0.01, Fe≤0.012%, surplus is Zn and inevitable impurity；
2) hot rolling: by step 1) slab that obtains heats at 800 DEG C～890 DEG C, and temperature retention time is 1h～5h, hot rolling
Water-cooled, finishing temperature is 350 DEG C～550 DEG C, and total deformation is 80%～96%, obtains the slab of 14mm～20mm；
3) milling face: by step 2) slab that obtains after hot rolling carries out the process of milling face, and milling amount is one side 0.5mm～1.0mm,
Milling Speed ＜ 5m/min, after milling, precision is longitudinal thickness tolerance+0.1mm, and transverse gage tolerance is ± 0.05mm；
4) cold rolling: by step 3) slab that obtains behind milling face carries out cold-rolling treatment, obtains copper strips；
5) recrystallization annealing: by step 4) cold rolling after the copper strips that obtains carry out at recrystallization annealing at bell-type annealing furnace
Reason, point bringing-up section, soaking zone and cooling section in annealing process, bringing-up section is heated to 450 DEG C～550 DEG C, heating rate >=120
DEG C/h, soaking zone is insulation 4 hours～5 hours, and cooling section makes copper strip tapping temperature less than 70 DEG C through air-cooled, water-cooled；
6) finishing processes: by step 5) copper strips after recrystallization annealing is carried out processing successively, stretch-bending straightening process with
And slitting finishing processes, obtain finished product nickel yellow copper strips.
In one embodiment of the invention, step 1) in, during semi-continuous casting, after forming green shell, by slab
Draw crystallizer when comprising liquid liquation in slab, then utilize the roll-in mode plate to comprising liquid liquation in it
Base carries out crimp process, and thickness of slab deflection is 20mm～50mm.
In one embodiment of the invention, step 2) in before hot rolling, by step 1) slab that obtains is in walking-beam furnace
Heat.
Raw material that the present invention does not elaborates, method and device etc. are prior art.
In order to be further appreciated by the present invention, a kind of nickel yellow copper strips present invention provided below in conjunction with embodiment and preparation thereof
Method is described in detail, and protection scope of the present invention is not limited by the following examples.
Embodiment 1
Nickel brass specification: as a example by 2.0 × 205mm thickness deviation ± 0.02mm, comprise the following steps:
1) founding: founding uses intermediate frequency furnace to carry out semi-continuous casting, adds zincification after copper plus nickel fusing, covers after skimming
Adding phosphor bronze alloy, composition is finely tuned；Using phosphor copper to carry out deoxidation degasification, casting uses and is dried Borax covering, described molten
Refining temperature is 1200 DEG C, and casting temperature is 1130 DEG C；Slab specification is 210 × 400 × 6000mm；Obtain slab, described slab
Including following components in percentage by weight: the Cu of 67%, the Ni of 4.5%, the P of 0.003%, Pb≤0.01, Fe≤0.012%,
Surplus is Zn and inevitable impurity；
2) hot rolling: by step 1) slab that obtains carries out being heated to 890 DEG C at walking-beam furnace, temperature retention time 1h, hot rolling
Passage 210mm-180mm-145mm-102mm-70mm-48mm-35mm-26mm-20mm-16mm, hot rolling water-cooled, finishing temperature is
550 DEG C, total deformation is 92.3%, obtains 16mm slab；
3) milling face: by step 2) slab that obtains after hot rolling carries out the process of milling face, and milling amount is one side 0.5mm；Milling speed
< 5m/min, after milling, precision is longitudinal thickness tolerance+0.1mm to degree, and transverse gage tolerance is ± 0.05mm；Thickness after milling
For 14.8mm；
4) cold rolling: by step 3) slab that obtains behind milling face carries out cold-rolling treatment, and rolling is assigned as 7 passages 14.8mm-
10.5mm-7.8mm-5.8mm-4.2mm-3.2mm-2.5mm--2.0mm, total deformation is 86.48%, and cold-rolling thickness tolerance is
± 0.02mm, obtains copper strips；
5) recrystallization annealing: by step 4) cold rolling after the copper strips that obtains carry out at recrystallization annealing at bell-type annealing furnace
Reason, point bringing-up section, soaking zone and cooling section in annealing process；Bringing-up section is heated to 550 DEG C, heating rate >=120 DEG C/h, insulation
Section is insulation 4.5 hours；Cooling section is less than 70 DEG C through air-cooled, water-cooled band tapping temperature；
6) finishing processes: by step 5) copper strips after recrystallization annealing is carried out processing successively, stretch-bending straightening process with
And slitting finishing processes, obtain finished product nickel yellow copper strips；Band is carried out, and pickling concentration controls in 6-12%, concentration of lye control
Making at 1-3%, use abrasive brush to be carried out, brush mesh number is that 1000 mesh, slitting finishing process and obtain good surface, template
Quality.
Finished product nickel brass band is carried out performance detection, the results are shown in Table 1.
Embodiment 2
Nickel brass specification: as a example by 0.4 × 205mm thickness deviation ± 0.01mm, comprise the following steps:
1) founding: founding uses intermediate frequency furnace to carry out semi-continuous casting, adds zincification after copper plus nickel fusing, covers after skimming
Adding phosphor bronze alloy, composition is finely tuned；Using phosphor copper to carry out deoxidation degasification, casting uses and is dried Borax covering, described molten
Refining temperature is 1230 DEG C, and casting temperature is 1120 DEG C；
During semi-continuous casting, after forming green shell, draw slab is comprised in slab liquid liquation
Crystallizer, then utilizes roll-in mode that the slab comprising liquid liquation in it is carried out crimp process, and thickness of slab deflection is
30mm；
Slab specification is 180 × 400 × 6000mm；
Obtaining slab, described slab includes following components in percentage by weight: the Cu of 70%, the Ni of 3.2%, 0.010%
P, Pb≤0.01, Fe≤0.012%, surplus is Zn and inevitable impurity；
2) hot rolling: by step 1) slab that obtains carries out being heated to 850 DEG C at walking-beam furnace, temperature retention time 3h, hot rolling
Passage 180mm-145mm-102mm-70mm-48mm-35mm-26mm-20mm-16mm, hot rolling water-cooled, finishing temperature is 420 DEG C,
Total deformation is 91.11%, obtains 16mm slab；
3) milling face: by step 2) slab that obtains after hot rolling carries out the process of milling face, and milling amount is one side 0.7mm；Milling speed
< 5m/min, after milling, precision is longitudinal thickness tolerance+0.1mm to degree, and transverse gage tolerance is ± 0.05mm；Thickness after milling
For 14.8mm；
4) cold rolling: by step 3) slab that obtains behind milling face carries out cold-rolling treatment, and rolling is assigned as 7 passages 14.8mm-
10.5mm-7.8mm-5.8mm-4.2mm-3.2mm-2.5mm--2.0mm, total deformation is 86.48%, and cold-rolling thickness tolerance is
± 0.02mm, obtains copper strips；
5) recrystallization annealing: by step 4) cold rolling after the copper strips that obtains carry out at recrystallization annealing at bell-type annealing furnace
Reason, point bringing-up section, soaking zone and cooling section in annealing process；Bringing-up section is heated to 500 DEG C, heating rate >=120 DEG C/h, insulation
Section is insulation 4.5 hours；Cooling section is less than 70 DEG C through air-cooled, water-cooled band tapping temperature；
6) cold rolling by step 5) material that obtains involves in row cold-rolling treatment, and rolling pass divides 5 passages, and rolling pass is assigned as:
2.0mm-1.35mm-1.05mm-0.85mm-0.7mm；
7) recrystallization annealing: by step 6) cold rolling after the copper strips that obtains carry out at recrystallization annealing at bell-type annealing furnace
Reason, point bringing-up section, soaking zone and cooling section in annealing process；Bringing-up section is heated to 480 DEG C, heating rate >=120 DEG C/h, insulation
Section is insulation 4.5 hours；Cooling section is less than 70 DEG C through air-cooled, water-cooled band tapping temperature；
8) cold rolling by step 7) material that obtains involves in row cold-rolling treatment, and rolling pass divides 2 passages, and rolling pass is assigned as:
0.7mm-0.48mm-0.4mm,；
9) finishing processes: by step 8) copper strips is carried out process successively, stretch-bending straightening processes and slitting finishing processes,
Obtain finished product nickel yellow copper strips；Band is carried out, and pickling concentration controls to control at 1-3% at 6-12%, concentration of lye, and employing is ground
Polish-brush is carried out, and brush mesh number is that 1000 mesh, slitting finishing process and obtain good surface, template quality.
Finished product nickel brass band is carried out performance detection, the results are shown in Table 1.
Embodiment 3
Nickel brass specification: as a example by 3.0 × 205mm thickness deviation ± 0.025mm, comprise the following steps:
1) founding: founding uses intermediate frequency furnace to carry out semi-continuous casting, adds zincification after copper plus nickel fusing, covers after skimming
Adding phosphor bronze alloy, composition is finely tuned；Using phosphor copper to carry out deoxidation degasification, casting uses and is dried Borax covering, described molten
Refining temperature is 1250 DEG C, and casting temperature is 1100 DEG C；Slab specification is 210 × 400 × 6000mm；Obtain slab, described slab
Including following components in percentage by weight: the Cu of 73%, the Ni of 2%, the P of 0.015%, Pb≤0.01, Fe≤0.012%, remaining
Amount is Zn and inevitable impurity；
2) hot rolling: by step 1) slab that obtains carries out being heated to 800 DEG C at walking-beam furnace, temperature retention time 5h, hot rolling
Passage 210mm-180mm-145mm-102mm-70mm-48mm-35mm-26mm-20mm-16mm, hot rolling water-cooled, finishing temperature is
350 DEG C, total deformation is 92.3%, obtains 16mm slab；
3) milling face: by step 2) slab that obtains after hot rolling carries out the process of milling face, and milling amount is one side 1.0mm；Milling speed
< 5m/min, after milling, precision is longitudinal thickness tolerance+0.1mm to degree, and transverse gage tolerance is ± 0.05mm；Thickness after milling
For 14.8mm；
4) cold rolling: by step 3) slab that obtains behind milling face carries out cold-rolling treatment, and rolling is assigned as 7 passages 14.8mm-
10.5mm-7.8mm-5.8mm-4.2mm-3.3mm-3.0mm, total deformation is 79.73%, cold-rolling thickness tolerance is ±
0.025mm, obtains copper strips；
5) recrystallization annealing: by step 4) cold rolling after the copper strips that obtains carry out at recrystallization annealing at bell-type annealing furnace
Reason, point bringing-up section, soaking zone and cooling section in annealing process；Bringing-up section is heated to 450 DEG C, heating rate >=120 DEG C/h, insulation
Section is insulation 4.5 hours；Cooling section is less than 70 DEG C through air-cooled, water-cooled band tapping temperature；
6) finishing processes: by step 5) copper strips after recrystallization annealing is carried out processing successively, stretch-bending straightening process with
And slitting finishing processes, obtain finished product nickel yellow copper strips；Band is carried out, and pickling concentration controls in 6-12%, concentration of lye control
Making at 1-3%, use abrasive brush to be carried out, brush mesh number is that 1000 mesh, slitting finishing process and obtain good surface, template
Quality.
Finished product nickel brass band is carried out performance detection, the results are shown in Table 1.
The performance data of the nickel yellow copper strips that table 1 obtains for various embodiments of the present invention
| Embodiment | Corrosion resistance mm/a | Wearability mg |
| Embodiment 1 | 0.012 | 0.065 |
| Embodiment 2 | 0.013 | 0.080 |
| Embodiment 3 | 0.015 | 0.073 |
The explanation of above example is only intended to help to understand method and the core concept thereof of the present invention.It is right to it should be pointed out that,
For those skilled in the art, under the premise without departing from the principles of the invention, it is also possible to the present invention is carried out
Some improvement and modification, these improve and modify in the protection domain also falling into the claims in the present invention.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple amendment for these embodiments is apparent from for those skilled in the art, defined herein one
As principle can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will
Will not be intended to be limited to the embodiments shown herein, and be to fit to consistent with principles disclosed herein and features of novelty
Widest range.
Claims (4)
1. a nickel yellow copper strips, it is characterised in that include following components in percentage by weight: the Cu of 67%～73%, 2%～
The Ni of 4.5%, the P of 0.003%～0.015%, Pb≤0.01, Fe≤0.012%, surplus is Zn and the most miscellaneous
Matter.
2. the preparation method of the nickel yellow copper strips described in a claim 1, it is characterised in that comprise the following steps:
1) founding: founding uses intermediate frequency furnace to carry out semi-continuous casting, uses phosphor copper to carry out deoxidation degasification, and casting uses
Being dried Borax to cover, described smelting temperature is 1200 DEG C～1250 DEG C, and casting temperature is 1100 DEG C～1130 DEG C；
Obtaining slab, described slab includes following components in percentage by weight: the Cu of 67%～73%, the Ni of 2%～4.5%,
The P of 0.003%～0.015%, Pb≤0.01, Fe≤0.012%, surplus is Zn and inevitable impurity；
2) hot rolling: by step 1) slab that obtains heats at 800 DEG C～890 DEG C, and temperature retention time is 1h～5h, hot-rolling water
Cold, finishing temperature is 350 DEG C～550 DEG C, and total deformation is 80%～96%, obtains the slab of 14mm～20mm；
3) milling face: by step 2) slab that obtains after hot rolling carries out the process of milling face, and milling amount is one side 0.5mm～1.0mm, milling
Speed ＜ 5m/min, after milling, precision is longitudinal thickness tolerance+0.1mm, and transverse gage tolerance is ± 0.05mm；
4) cold rolling: by step 3) slab that obtains behind milling face carries out cold-rolling treatment, obtains copper strips；
5) recrystallization annealing: by step 4) cold rolling after the copper strips that obtains carry out recrystallization annealing process at bell-type annealing furnace, move back
Point bringing-up section, soaking zone and cooling section during fire, bringing-up section is heated to 450 DEG C～550 DEG C, heating rate >=120 DEG C/h,
Soaking zone is insulation 4 hours～5 hours, and cooling section makes copper strip tapping temperature less than 70 DEG C through air-cooled, water-cooled；
6) finishing processes: by step 5) copper strips after recrystallization annealing is carried out processing successively, stretch-bending straightening processes and vertical
Cut finishing to process, obtain finished product nickel yellow copper strips.
Preparation method the most according to claim 2, it is characterised in that step 1) in, during semi-continuous casting, formed
After green shell, slab is comprised in slab liquid liquation, draw crystallizer, then utilize roll-in mode to wrap in it
Slab containing liquid liquation carries out crimp process, and thickness of slab deflection is 20mm～50mm.
Preparation method the most according to claim 2, it is characterised in that step 2) in before hot rolling, by step 1) obtain
Slab heats in walking-beam furnace.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109385637A (en) * | 2017-08-09 | 2019-02-26 | 江西凯安智能股份有限公司 | A kind of brass producing process of sheet and strip |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111549255A (en) * | 2020-05-15 | 2020-08-18 | 浙江浙铜五星金属材料有限公司 | Formula and preparation method of high-precision brass strip |
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Effective date of registration: 20230713 Address after: 6 households, including No. 3, OBT Building, Shifangyuan, Economic Development Zone, Linqing City, Liaocheng City, Shandong Province, 252000 Patentee after: Zhongse Zhengrui (Shandong) Copper Industry Co.,Ltd. Address before: 252600 north head of East 2nd Ring Road, Linqing City, Liaocheng City, Shandong Province Patentee before: CNMC ALBETTER ALBRONZE Co.,Ltd. |