CN112620348A - Method for reducing oil stain on surface of copper strip in production process - Google Patents
Method for reducing oil stain on surface of copper strip in production process Download PDFInfo
- Publication number
- CN112620348A CN112620348A CN202011427373.9A CN202011427373A CN112620348A CN 112620348 A CN112620348 A CN 112620348A CN 202011427373 A CN202011427373 A CN 202011427373A CN 112620348 A CN112620348 A CN 112620348A
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- CN
- China
- Prior art keywords
- copper
- copper strip
- strip
- production process
- oil
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Classifications
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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
- B21B1/38—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 sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
- B08B3/123—Cleaning travelling work, e.g. webs, articles on a conveyor
-
- 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
- B21B45/0275—Cleaning devices
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
- C23G3/021—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously by dipping
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention relates to the technical field of copper strip production, and discloses a method for reducing oil stains on the surface of a copper strip in a production process. The method for reducing the greasy dirt on the surface of the copper strip in the production process comprises the steps of grinding and oiling the copper strip when the copper strip is cut, and secondarily grinding and oiling the copper strip after hot rolling, so that the contact time of the copper strip with air in the production process is reduced, the oxidation rate is reduced, the phenomenon that the copper strip is too much in contact with the air is avoided, plaque formed by oxidation is difficult to process, the copper strip scrapes off the greasy dirt on the surface under the action of the two rollers through the two rollers in an oil tank, the residual greasy dirt is finely processed by utilizing ultrasonic waves, the copper strip is dried after being cleaned in a light acid tank, the cleanliness of the copper strip is ensured, the surface of the produced copper strip is free of greasy dirt and is smooth, the difficulty of concentration control in the acid tank is reduced, and the production efficiency and.
Description
Technical Field
The invention relates to the technical field of copper strip production, in particular to a method for reducing oil stains on the surface of a copper strip in a production process.
Background
Copper is a metal element, also a transition element, chemical symbol Cu, pure copper is a soft metal, the surface is red orange band metallic luster when just cut, the simple substance is mauve, the ductility is good, the thermal conductivity and the electrical conductivity are high, therefore it is the most common material in cable, electric and electronic component, also can be used as building material, can form many kinds of alloys, the copper alloy mechanical property is excellent, the resistivity is very low, among them the most important several bronze and brass, in addition copper is durable metal, can reclaim many times without damaging its mechanical property, wherein copper strip, one of the copper applications, is a metal element, mainly used for producing electric appliance component, lamp holder, battery cap, button, sealing element and connector, mainly used as electric conduction, heat conduction and corrosion resistant equipment, such as electric component, switch, gasket, electric vacuum device, radiator, electric conduction mother material and automobile water tank, Various parts such as a heat sink and a cylinder plate.
In the production process of copper strips, in order to reduce the oxidation condition of copper strips, can carry out the fat liquoring processing usually, protection copper strips surface, reduce the contact of copper strips and air, but owing to add zinc material, when receiving the pressure rolling, can cause partly zinc powder to drop, combine with the surface fat liquoring and form the greasy dirt, cause inconvenience for the production of copper strips, increase the production degree of difficulty, inefficiency when the manual work is scrubbed, and do not adopt the fat liquoring, pickling in using to copper strips surface oxidation layer, concentration is difficult to control, can reduce efficiency.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a method for reducing oil stains on the surface of a copper strip in the production process, which has the advantages of improving the production quality of the copper strip, improving the production efficiency and the like, and solves the problems that as a zinc material is added, when the copper strip is rolled, part of zinc powder falls off, and oil stains are formed by combining with surface oiling, so that the production of the copper strip is inconvenient, the production difficulty is increased, the efficiency is low during manual scrubbing, the oiling is not adopted, and the concentration is not easy to control and the efficiency is reduced because an oxide layer on the surface of the copper strip is pickled in use.
(II) technical scheme
In order to realize the purposes of improving the production quality and the production efficiency of the copper strip, the invention provides the following technical scheme:
a method for reducing oil stains on the surface of a copper strip in a production process comprises the following steps:
refining and making a blank in a furnace: according to the production target, adding zinc blocks in different amounts into the waste copper materials and adding the zinc blocks into a smelting furnace together to prepare copper blocks;
and (4) testing the copper blocks: testing the prepared copper block, controlling the purity of the copper block to be more than 60%, and feeding back the result;
producing and cutting copper strips: rolling a copper block with good purity into a copper bar, placing the copper bar on a cutting table, cutting the copper bar into copper bars with equal length, polishing and smoothening the surface of the copper bar, and slightly coating oil on the smooth surface of the copper bar;
hot rolling of the copper bar: feeding the copper bar subjected to the oil coating treatment into a smelting furnace for heating, then carrying out hot rolling, rolling the copper bar into a copper strip, and carrying out secondary polishing and medium oil coating treatment;
washing the copper strip: the copper strip cleaned by the oil removal tank is sent to the light acid tank, the upper roller of the light acid tank is positioned on the surface of the water tank, the surface of the copper strip is compounded with friction nylon fabric, and the copper strip is cleaned in front and back sides and then taken out for drying;
rolling the copper strip: and (3) carrying out hot rolling on the copper strip, and then sending the copper strip into a primary rolling area and a fine rolling area to obtain an intact copper strip.
Preferably, the waste copper material and the zinc blocks are mixed according to a certain proportion and then added into the smelting furnace.
Preferably, the purity of the copper blocks is controlled between 60% and 62%, and the weight ratio of the waste copper materials to the zinc blocks is recorded when the proper purity is obtained.
Preferably, during polishing, the surface of the copper bar is concave-convex removed by using a surface cleaning machine and then a grinding wheel, and the copper bar is lightly coated with oil until a layer of oil film is formed.
Preferably, after the copper bar is hot-rolled, oil stains are formed on the surface of the copper bar, and after the copper bar is washed by a primary oil removal tank, secondary polishing and intermediate oil coating treatment are carried out.
Preferably, the distance between the upper scraper and the lower roller in the oil removal tank is matched with the width of the copper strip, and the ultrasonic generator and the transducer are arranged at the bottom of the oil removal tank.
Preferably, the acid concentration in the light acid pool is 3-5 degrees, and the distance between two rollers in the light acid pool is matched with the width of the copper strip.
Preferably, the distance between the rollers in the initial rolling area is five millimeters to one centimeter less than the thickness of the unrolled copper strip, and the distance between the rollers in the fine rolling area is half of the distance between the rollers in the initial rolling area.
(III) advantageous effects
Compared with the prior art, the invention provides a method for reducing oil stains on the surface of a copper strip in the production process, which has the following beneficial effects:
the method for reducing the greasy dirt on the surface of the copper strip in the production process comprises the steps of grinding and oiling the copper strip when the copper strip is cut, and secondarily grinding and oiling the copper strip after hot rolling, so that the contact time of the copper strip with air in the production process is reduced, the oxidation rate is reduced, the phenomenon that the copper strip is too much in contact with the air is avoided, plaque formed by oxidation is difficult to process, the copper strip scrapes off the greasy dirt on the surface under the action of the two rollers through the two rollers in an oil tank, the residual greasy dirt is finely processed by utilizing ultrasonic waves, the copper strip is dried after being cleaned in a light acid tank, the cleanliness of the copper strip is ensured, the surface of the produced copper strip is free of greasy dirt and is smooth, the difficulty of concentration control in the acid tank is reduced, and the production efficiency and.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
Example (b): a method for reducing oil stains on the surface of a copper strip in a production process comprises the following steps:
refining and making a blank in a furnace: according to the production target, adding zinc blocks in different amounts into the waste copper materials and adding the waste copper materials and the zinc blocks into a smelting furnace together, mixing the waste copper materials and the zinc blocks according to a certain proportion and then adding the mixture into the smelting furnace to prepare copper blocks;
and (4) testing the copper blocks: testing the prepared copper block, controlling the purity of the copper block to be more than 60%, feeding back the result, controlling the purity of the copper block to be between 60% and 62%, and recording the weight proportion of the waste copper material and the zinc block when the proper purity is obtained;
producing and cutting copper strips: rolling a copper block with good purity into a copper bar, placing the copper bar on a cutting table, cutting the copper bar into copper bars with equal length, polishing the surface of the copper bar smoothly, and lightly coating oil on the smooth surface of the copper bar, wherein the surface of the copper bar is polished by using a face washing machine and then using a grinding wheel, and the concave-convex part on the surface of the copper bar is removed by lightly coating the oil until a layer of oil film is formed;
hot rolling of the copper bar: feeding the copper bar subjected to oil coating treatment into a smelting furnace for heating, then carrying out hot rolling, rolling the copper bar into a copper strip, carrying out secondary polishing and medium oil coating treatment, forming oil stains on the surface of the copper bar after the copper bar is subjected to hot rolling, and carrying out secondary polishing and medium oil coating treatment after primary degreasing bath washing;
washing the copper strip: the device comprises a water tank, an oil removing tank and a light acid tank, wherein two rollers are arranged in the water tank, a scraping plate is fixed on the surface of an upper roller of the oil removing tank, an ultrasonic generator and an energy converter are arranged in the oil removing tank, the distance between the upper scraping plate and a lower roller in the oil removing tank is matched with the width of a copper strip, the ultrasonic generator and the energy converter are arranged at the bottom of the oil removing tank, the copper strip cleaned by the oil removing tank is sent to the light acid tank, the upper roller of the light acid tank is positioned on the surface of the water tank, the surface of the upper roller of the light acid tank is compounded with a friction nylon fabric, the acid concentration in the light acid tank is 3-5 ℃, the distance between the two rollers in the light acid tank is matched with the width;
rolling the copper strip: and (3) feeding the copper strip into a primary rolling area and a fine rolling area after hot rolling, wherein the distance between rollers in the primary rolling area is five millimeters to one centimeter less than the thickness of the non-rolled copper strip, and the distance between rollers in the fine rolling area is half of the distance between the rollers in the primary rolling area, so as to obtain the intact copper strip.
And (4) judging the standard: the copper strip with smooth surface and no oil stain is obtained.
The invention has the beneficial effects that: the method for reducing the greasy dirt on the surface of the copper strip in the production process comprises the steps of polishing and oiling the copper strip when the copper strip is cut, and secondarily polishing and oiling the hot-rolled copper strip, so that the contact time of the copper strip and air in the production process is reduced, the oxidation rate is reduced, the phenomenon that the copper strip is excessively contacted with the air and oxidized to form patches is difficult to treat is avoided, the surface greasy dirt is scraped by the copper strip under the action of the two rollers in an oil tank through the two rollers in the previous oil tank, the residual greasy dirt is finely treated by utilizing ultrasonic waves, the copper strip is dried after being cleaned in a light acid tank, the cleanliness of the copper strip is ensured, the surface of the produced copper strip is free of greasy dirt and smooth, the difficulty of concentration control in an acid tank is reduced, the production efficiency and the product yield of the copper strip are improved, the problems that a part of zinc powder falls off when the copper strip is subjected to rolling and, inconvenience is caused to the production of the copper strip, the production difficulty is increased, efficiency is low during manual scrubbing, oiling is not adopted, acid washing is carried out on an oxide layer on the surface of the copper strip in use, concentration is not easy to control, and efficiency can be reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A method for reducing oil stains on the surface of a copper strip in a production process is characterized by comprising the following steps:
refining and making a blank in a furnace: according to the production target, adding zinc blocks in different amounts into the waste copper materials and adding the zinc blocks into a smelting furnace together to prepare copper blocks;
and (4) testing the copper blocks: testing the prepared copper block, controlling the purity of the copper block to be more than 60%, and feeding back the result;
producing and cutting copper strips: rolling a copper block with good purity into a copper bar, placing the copper bar on a cutting table, cutting the copper bar into copper bars with equal length, polishing and smoothening the surface of the copper bar, and slightly coating oil on the smooth surface of the copper bar;
hot rolling of the copper bar: feeding the copper bar subjected to the oil coating treatment into a smelting furnace for heating, then carrying out hot rolling, rolling the copper bar into a copper strip, and carrying out secondary polishing and medium oil coating treatment;
washing the copper strip: the copper strip cleaned by the oil removal tank is sent to the light acid tank, the upper roller of the light acid tank is positioned on the surface of the water tank, the surface of the copper strip is compounded with friction nylon fabric, and the copper strip is cleaned in front and back sides and then taken out for drying;
rolling the copper strip: and (3) carrying out hot rolling on the copper strip, and then sending the copper strip into a primary rolling area and a fine rolling area to obtain an intact copper strip.
2. The method for reducing the greasy dirt on the surface of the copper strip in the production process according to claim 1, characterized in that: the waste copper material and the zinc block are mixed according to a certain proportion and then are added into a smelting furnace.
3. The method for reducing the greasy dirt on the surface of the copper strip in the production process according to claim 1, characterized in that: the purity of the copper block is controlled between 60% and 62%, and the weight proportion of the waste copper material and the zinc block is recorded when the proper purity is obtained.
4. The method for reducing the greasy dirt on the surface of the copper strip in the production process according to claim 1, characterized in that: and during polishing, the concave-convex part on the surface of the copper bar is removed by using a surface cleaning machine and then using a grinding wheel, and the oil is lightly coated until a layer of oil film is formed.
5. The method for reducing the greasy dirt on the surface of the copper strip in the production process according to claim 1, characterized in that: after the copper bar is hot-rolled, oil stains are formed on the surface of the copper bar, and after the copper bar is washed by a primary oil removal tank, secondary polishing and intermediate oil coating treatment are carried out.
6. The method for reducing the greasy dirt on the surface of the copper strip in the production process according to claim 1, characterized in that: the distance between the upper scraper and the lower roller in the oil removing pool is matched with the width of the copper strip, and the ultrasonic generator and the transducer are arranged at the bottom of the oil removing pool.
7. The method for reducing the greasy dirt on the surface of the copper strip in the production process according to claim 1, characterized in that: the acid concentration in the light acid pool is 3-5 degrees, and the distance between two rollers in the light acid pool is matched with the width of the copper strip.
8. The method for reducing the greasy dirt on the surface of the copper strip in the production process according to claim 1, characterized in that: the distance between the rollers in the initial rolling area is less than the thickness of the non-rolled copper strip by five millimeters to one centimeter, and the distance between the rollers in the fine rolling area is half of the distance between the rollers in the initial rolling area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011427373.9A CN112620348A (en) | 2020-12-09 | 2020-12-09 | Method for reducing oil stain on surface of copper strip in production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011427373.9A CN112620348A (en) | 2020-12-09 | 2020-12-09 | Method for reducing oil stain on surface of copper strip in production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112620348A true CN112620348A (en) | 2021-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011427373.9A Withdrawn CN112620348A (en) | 2020-12-09 | 2020-12-09 | Method for reducing oil stain on surface of copper strip in production process |
Country Status (1)
| Country | Link |
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| CN (1) | CN112620348A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115786750A (en) * | 2022-12-28 | 2023-03-14 | 江苏亨通精密铜业有限公司 | Production process of copper strip for ocean cable |
-
2020
- 2020-12-09 CN CN202011427373.9A patent/CN112620348A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115786750A (en) * | 2022-12-28 | 2023-03-14 | 江苏亨通精密铜业有限公司 | Production process of copper strip for ocean cable |
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Application publication date: 20210409 |
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| WW01 | Invention patent application withdrawn after publication |