CN109304371B - Production process of tab copper material - Google Patents
Production process of tab copper material Download PDFInfo
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- CN109304371B CN109304371B CN201811175405.3A CN201811175405A CN109304371B CN 109304371 B CN109304371 B CN 109304371B CN 201811175405 A CN201811175405 A CN 201811175405A CN 109304371 B CN109304371 B CN 109304371B
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- rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
- B21B27/021—Rolls for sheets or strips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/049—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for direct chill casting, e.g. electromagnetic casting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Metal Rolling (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The embodiment of the invention discloses a production process of a tab copper material, which comprises the following steps: electromagnetically casting high-purity cathode copper into an ingot blank through an oxygen-free copper furnace; carrying out hot rolling on the ingot blank, and then carrying out online cooling; fine milling, namely performing double-sided milling on the ingot blank twice, and then brushing with clean water; rough rolling and cogging, and 4-pass rolling of the second rack; cleaning and degreasing by adopting a rapid abrasive, and carrying out fine brushing by using the abrasive; cleaning after annealing; rolling and washing the whole oil without color difference; rapidly annealing and cleaning without brush marks; rolling the whole oil into a finished product without color difference; rapidly cleaning and removing oil; annealing and cleaning without brush; and shearing and drawing and straightening the finished product into the lug copper strip without damage. The production process of the copper material for the lug can effectively ensure the electric conduction, heat conduction and bending performance of the copper strip, effectively remove surface defects, reduce the pollution of the surface by emulsion and rolling oil, prevent the defects of brush marks, scratches and the like on the surface, enable the nickel plating of the copper strip to be more compact and uniform in the subsequent processing process, and prolong the service life of the copper strip to 10 years after the copper strip is subsequently processed into the lug.
Description
Technical Field
The invention relates to a production method of a tab, in particular to a production process of a tab copper material.
Background
The copper material for the tab has good electrical conductivity, heat conductivity and bending performance, and particularly has uniform and consistent surface quality requirements so as to meet the phenomena of surface consistency and the like after nickel plating. The existing production of the tab copper material has technical bottlenecks, the color difference-free rolling, the non-hairline annealing cleaning and the nondestructive shearing technology are immature, the O content of the tab in the market is less than or equal to 10PPM, the P content of the tab is less than 3PPM, the 180-degree repeated bending performance is more than or equal to 7 times, the surface of the tab is clean, bright and black, the color is uniform and color difference-free, and the copper strip with the undamaged surface has strong requirements, particularly, downstream customers have strong market requirements on the high-quality copper material for the tab. In order to overcome the defects of the prior art, the invention provides a casting, rolling, annealing cleaning and shearing production process of a lug copper material, breaks through the technologies of non-chromatic-aberration rolling, non-moire annealing cleaning and non-destructive shearing, can realize the industrialization of the lug copper material, greatly improves the yield, meets the strong market demand, and meets the special requirements of the downstream production of lugs on components and performance.
Disclosure of Invention
The technical problem to be solved by the embodiment of the invention is to provide a production process of a lug copper material, aiming at the problem of technical bottleneck in the production of the existing lug copper material.
In order to solve the technical problem, an embodiment of the present invention provides a production process of a tab copper material, where the production process of the tab copper material includes the steps of:
a. electromagnetically casting high-purity cathode copper into an ingot blank through an oxygen-free copper furnace;
b. carrying out hot rolling on the ingot blank, and then carrying out online cooling;
c. fine milling, namely performing double-sided milling on the ingot blank twice, and then brushing with clean water;
d. rough rolling and cogging, and 4-pass rolling of the second rack;
e. cleaning and degreasing by adopting a rapid abrasive, and carrying out fine brushing by using the abrasive;
f. cleaning after annealing;
g. rolling and washing the whole oil without color difference;
h. rapidly annealing and cleaning without brush marks;
i. rolling the whole oil into a finished product without color difference;
j. rapidly cleaning and removing oil;
k. annealing and cleaning without brush;
and l, shearing and straightening the finished product into the lug copper strip without damage.
Wherein, in the 4-pass rolling in the step d, new rollers are adopted before the 1 st to 3 rd rolling and the 4 th rolling.
And e, rapidly cleaning and removing oil by using an abrasive in the step e, wherein the time of the fine brush with the abrasive is 6 hours, the treatment liquid is the metal copper degreasing agent K602 added with deionized water, the concentration is 1.5 wt%, and the treatment temperature is 40-80 ℃.
And g, wherein the roughness Ra of the new grinding roller for rolling in the step g is 0.15um, non-corrosive rolling oil is adopted, and the oil pressure is 6 bar.
Wherein, the step h adopts a soft and fine hair degreasing brush for treatment for 6 hours, the treatment fluid is the metal copper degreasing agent K602 added with deionized water, the concentration is 1.5 wt%, and the treatment temperature is 40-80 ℃.
And (e) wherein the roughness Ra of the new grinding roller for rolling in the step i is 0.15um, corrosion-free rolling oil is adopted, and the oil pressure is 6 bar.
Wherein, the step j adopts a soft and fine hair degreasing brush for treatment for 6 hours, the treatment fluid is the metal copper degreasing agent K602 added with deionized water, the concentration is 1.5 wt%, and the treatment temperature is 60-80 ℃.
Wherein, the step K adopts a soft and fine hair degreasing brush for treatment for 6 hours, the treatment fluid is the metal copper degreasing agent K602 added with deionized water, the concentration is 1.5 wt%, and the treatment temperature is 60-80 ℃.
Wherein, straight pulling shearing straightening is adopted in the step l, the straightening reduction of a 7-roll is-1.40/-1.50 mm, and the tension is 1.2-1.7 KN.
The embodiment of the invention has the following beneficial effects: the production process of the lug copper material adopts an oxygen-free copper furnace to electromagnetically cast a copper blank, increases the methods of rough rolling of a finish milling surface, then fast cleaning, fast degreasing by non-chromatic-aberration rolling, non-striation annealing and non-destructive shearing, can effectively ensure the electric conduction, heat conduction and bending performance of a copper strip, effectively remove surface defects, reduce the pollution of the surface by emulsion and rolling oil, prevent the defects of striation, scratch and the like on the surface, enable the copper strip to be plated with nickel more tightly and uniformly in the subsequent processing process, and prolong the service life of the lug from 1 to 2 years to 10 years after the lug is subsequently processed.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a production process of a lug copper material, which comprises the following steps:
and electromagnetically casting the high-purity cathode copper into an ingot blank through an oxygen-free copper furnace.
The ingot is hot rolled and then cooled on-line.
And (3) fine milling, namely milling the two surfaces of the ingot blank twice, and then brushing with clean water.
Rough rolling and cogging, and 4-pass rolling of the second rack; new rolls were used before each of runs 1-3 and 4.
Cleaning and degreasing by adopting a rapid abrasive, and carrying out fine brushing by using the abrasive; the time is 6 hours, the treatment fluid is the metal copper degreasing agent K602 added with deionized water, the concentration is 1.5 wt%, and the treatment temperature is 40-80 ℃.
And cleaning after annealing.
Rolling and washing the whole oil without color difference; the roughness Ra of the new grinding roller for rolling is 0.15um, and the oil pressure is 6bar by adopting non-corrosive rolling oil.
Rapidly annealing and cleaning without brush marks; treating for 6 hours by using a soft and fine-hair degreasing brush, wherein the treating fluid is a metal copper degreasing agent K602 added with deionized water, the concentration is 1.5 wt%, and the treating temperature is 40-80 ℃.
Rolling the whole oil into a finished product without color difference; the roughness Ra of the new grinding roller for rolling is 0.15um, and the oil pressure is 6bar by adopting non-corrosive rolling oil.
Rapidly cleaning and removing oil; the soft and fine hair degreasing brush is adopted for treatment for 6 hours, the treatment fluid is the metal copper degreasing agent K602 added with deionized water, the concentration is 1.5 wt%, and the treatment temperature is 60-80 ℃.
Annealing and cleaning without brush; the soft and fine hair degreasing brush is adopted for treatment for 6 hours, the treatment fluid is the metal copper degreasing agent K602 added with deionized water, the concentration is 1.5 wt%, and the treatment temperature is 60-80 ℃.
Shearing, pulling and straightening the finished product into a lug copper strip without damage; straight-pull shearing straightening is adopted, the straightening reduction of a 7-roll is-1.40/-1.50 mm, and the tension is 1.2-1.7 KN.
The invention realizes that the calendered strip has no visible surface lines by the naked eyes by the uniform refinement technology of cast ingot grains, the special electromagnetic casting technology and the surface control technology of non-chromatic aberration cold calendering; through the surface treatment technology of non-pattern annealing and cleaning, and through the special design of the brushing process in the annealing and finished product cleaning processes of the air cushion furnace, the vibration of the brush is reduced, so that the surface of the strip material has no pattern; the surface damage-free shearing control technology is applied, the tension control technology in the shearing process is developed, surface grains generated by sheet building are avoided in the shearing process, and the surface defect depth is less than 0.002 mu m under a microscope of 40 times when a finished product strip is inspected. The production process breaks through the technologies of no-color-difference rolling, no-hairline annealing cleaning and no-damage shearing, can realize the industrialization of the tab material, greatly improve the yield, and meet the strong requirements of marketization, the O content of the produced copper strip is less than or equal to 10PPM, the P content is less than 3PPM, the 180-degree repeated bending performance is more than or equal to 7 times, the surface is dry, bright and has no black thread, and the color is uniform and has no color difference; the surface is not damaged. The special requirements of the downstream production of the tab on the components and the performance are met.
The technical scheme of the invention mainly has the following innovation points: 1. ingot casting grain uniform refining technology: a special electromagnetic casting technology is adopted; 2. the surface control technology of non-chromatic aberration cold rolling comprises the following steps: the rolled strip has no visible surface lines by adjusting the rolling process and specially processing the rolling medium; 3. surface treatment technology of non-brush annealing and cleaning: through the special design of the brushing process in the annealing and finished product cleaning processes of the air cushion furnace, the vibration of the brush is reduced, and the surface of the strip does not have the brush lines; 4. surface damage-free shear control technology: a tension control technology in the shearing process is developed, surface grains generated by no tension building in the shearing process are realized, and the surface defect depth is less than 0.002 mu m under a microscope of 40 times when a finished product belt material is detected.
The embodiment of the invention has the following beneficial effects: the production process of the lug copper material adopts an oxygen-free copper furnace to electromagnetically cast a copper blank, increases the methods of rough rolling of a finish milling surface, then fast cleaning, fast degreasing by non-chromatic-aberration rolling, non-striation annealing and non-destructive shearing, can effectively ensure the electric conduction, heat conduction and bending performance of a copper strip, effectively remove surface defects, reduce the pollution of the surface by emulsion and rolling oil, prevent the defects of striation, scratch and the like on the surface, enable the copper strip to be plated with nickel more tightly and uniformly in the subsequent processing process, and prolong the service life of the lug from 1 to 2 years to 10 years after the lug is subsequently processed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The production process of the lug copper material is characterized by comprising the following steps of:
a. electromagnetically casting high-purity cathode copper into an ingot blank through an oxygen-free copper furnace;
b. carrying out hot rolling on the ingot blank, and then carrying out online cooling;
c. fine milling, namely performing double-sided milling on the ingot blank twice, and then brushing with clean water;
d. rough rolling and cogging, rolling by a second rack for 4 times, and adopting new rollers before the 1 st to 3 th rolling and the 4 th rolling;
e. cleaning and degreasing by adopting a rapid abrasive, and carrying out fine brushing by using the abrasive;
f. cleaning after annealing;
g. rolling and washing the whole oil without color difference;
h. quick non-moire annealing and cleaning: treating for 6 hours by using a soft and fine-hair degreasing brush, wherein the treatment liquid is a metal copper degreasing agent K602 added with deionized water, the concentration is 1.5 wt%, and the treatment temperature is 40-80 ℃;
i. rolling the whole oil into a finished product without color difference;
j. and (3) quick cleaning and oil removing: treating for 6 hours by adopting a soft and fine-hair degreasing brush, wherein the treating fluid is a metal copper degreasing agent K602 added with deionized water, the concentration is 1.5 wt%, and the treating temperature is 60-80 ℃;
k. annealing and cleaning without brush lines: treating for 6 hours by adopting a soft and fine-hair degreasing brush, wherein the treating fluid is a metal copper degreasing agent K602 added with deionized water, the concentration is 1.5 wt%, and the treating temperature is 60-80 ℃;
and l, shearing and straightening the finished product into the lug copper strip without damage.
2. The production process of the tab copper material as claimed in claim 1, wherein the rapid abrasive cleaning and oil removal in step e takes 6 hours with an abrasive brush, the treatment solution is a metal copper degreasing agent K602 plus deionized water with a concentration of 1.5 wt%, and the treatment temperature is 40-80 ℃.
3. The production process of the tab copper material as claimed in claim 1, wherein the roughness Ra of the new mill roll for rolling in the step g is 0.15um, and the oil pressure is 6bar by using non-corrosive rolling oil.
4. The production process of the tab copper material as claimed in claim 1, wherein the roughness Ra of the new mill roll for rolling in step i is 0.15um, and the oil pressure is 6bar by using non-corrosive rolling oil.
5. The production process of the tab copper material as claimed in claim 1, wherein the step l adopts straight-pull shearing straightening, the straightening reduction of a 7-roll is-1.40/-1.50 mm, and the tension is 1.2-1.7 KN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811175405.3A CN109304371B (en) | 2018-10-10 | 2018-10-10 | Production process of tab copper material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811175405.3A CN109304371B (en) | 2018-10-10 | 2018-10-10 | Production process of tab copper material |
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| CN109304371B true CN109304371B (en) | 2020-05-19 |
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| CN113083897B (en) * | 2021-04-07 | 2022-12-27 | 太原晋西春雷铜业有限公司 | Preparation method of high-uniformity surface of copper or copper alloy strip |
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| JPH04293757A (en) * | 1991-03-23 | 1992-10-19 | Totoku Electric Co Ltd | Production of flat square coated wire |
| CN101637988A (en) * | 2008-08-01 | 2010-02-03 | 重庆长江电工工业有限责任公司 | Soft copper-clad steel band and preparation method thereof |
| CN102658452B (en) * | 2011-11-17 | 2014-07-16 | 中铝洛阳铜业有限公司 | Processing method of copper strip used for copper steel composites |
| CN104372274A (en) * | 2014-10-09 | 2015-02-25 | 安徽鑫科新材料股份有限公司 | Processing technology for elimination of roll marks on surface of zinc-copper-nickel alloy strip |
| CN106736307A (en) * | 2017-02-11 | 2017-05-31 | 兴化市兴成铜业有限公司 | A kind of high accuracy complexity copper-nickel alloy ternary alloy three-partalloy production technology |
| JP6611751B2 (en) * | 2017-03-31 | 2019-11-27 | Ｊｘ金属株式会社 | Rolled copper foil for lithium ion battery current collector and lithium ion battery |
| CN107385270B (en) * | 2017-07-20 | 2019-08-13 | 中铝洛阳铜加工有限公司 | A kind of preparation process of frame material copper strips |
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