CN111945011A - Copper rod machining process - Google Patents
Copper rod machining process Download PDFInfo
- Publication number
- CN111945011A CN111945011A CN202010818493.5A CN202010818493A CN111945011A CN 111945011 A CN111945011 A CN 111945011A CN 202010818493 A CN202010818493 A CN 202010818493A CN 111945011 A CN111945011 A CN 111945011A
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- Prior art keywords
- copper rod
- parts
- copper
- processing technology
- mould
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D201/00—Coating compositions based on unspecified macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/006—Pyrometallurgy working up of molten copper, e.g. refining
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
- C22B7/003—Dry processes only remelting, e.g. of chips, borings, turnings; apparatus used therefor
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a copper rod processing technology, which comprises the following steps: A. pretreating waste copper; B. pre-melting the pretreated waste copper in a melting furnace, and then slagging off; C. adding a purification flux into the melt after slagging off, and then continuing heating the melting furnace; D. pouring the purified molten liquid, and injecting the molten liquid into a prefabricated copper rod mould; E. rapidly cooling the copper rod mould to normal temperature, and then opening the mould to obtain a copper rod; F. and finally, spraying a protective coating on the surface of the copper rod, wherein the copper rod processing technology adopted by the invention is simple to operate, and the obtained copper rod has high purity, good hardness, difficult oxidation and deformation and long service life.
Description
Technical Field
The invention relates to the technical field of copper rod processing, in particular to a copper rod processing technology.
Background
With the rapid development of national economy, on one hand, the consumption of copper increases rapidly, the price of copper rises rapidly, and the copper resource in China is in short supply, so that the yield of copper concentrate is difficult to meet the demand; on the other hand, in recent years, waste household appliances and waste batteries are rapidly increased, and environmental pollution is caused. Therefore, the recycling of scrap copper is a shortcut for the rapid development of the copper industry in China to make up for the shortage of raw materials. For a long time, copper rod manufacturers in various countries have wanted to increase the proportion of waste copper in the raw material. How to utilize the waste copper and the refining process of the red impure copper reverberatory furnace to produce the bright copper rod is an important research target of technical personnel.
The existing copper rod processing technology is complex, and the purity of the obtained copper rod is low, so that improvement is needed.
Disclosure of Invention
The invention aims to provide a copper rod processing technology to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a copper rod processing technology comprises the following steps:
A. pretreating waste copper;
B. pre-melting the pretreated waste copper in a melting furnace, and then slagging off;
C. adding a purification flux into the melt after slagging off, and then continuing heating the melting furnace;
D. pouring the purified molten liquid, and injecting the molten liquid into a prefabricated copper rod mould;
E. rapidly cooling the copper rod mould to normal temperature, and then opening the mould to obtain a copper rod;
F. and finally, spraying a protective coating on the surface of the copper rod.
Preferably, the pre-melting temperature in the step B is 800-1000 ℃, and the time is 50-70 min.
Preferably, the purification flux component in the step C comprises, by weight, 20-30 parts of magnesium chloride, 10-20 parts of cerium carbonate, 4-10 parts of potassium tetraborate, 5-15 parts of sodium fluosilicate, 3-9 parts of cryolite and 4-10 parts of boron carbide.
Preferably, in the step C, the temperature of the melting furnace is increased to 1200-1400 ℃.
Preferably, the casting temperature in the step D is 1350-1380 ℃.
Preferably, the cooling manner in the step E is a combination of air cooling and water cooling.
Preferably, the protective coating in step F is composed of 30% of polytetrafluoroethylene nanoparticle dispersion, 30% of nano ceramic beads and 40% of heat-resistant resin polymer.
Compared with the prior art, the invention has the beneficial effects that: the copper rod processing technology adopted by the invention is simple to operate, and the obtained copper rod has high purity, good hardness, difficult oxidation and deformation and long service life; the adopted purifying flux has good chemical stability and less harmful gas amount, can more effectively discharge and remove impurities, slag inclusion and harmful gas in the molten liquid, and improves the purity of the molten liquid.
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 first embodiment is as follows:
the invention provides the following technical scheme: a copper rod processing technology comprises the following steps:
A. pretreating waste copper;
B. pre-melting the pretreated waste copper in a melting furnace, and then slagging off;
C. adding a purification flux into the melt after slagging off, and then continuing heating the melting furnace;
D. pouring the purified molten liquid, and injecting the molten liquid into a prefabricated copper rod mould;
E. rapidly cooling the copper rod mould to normal temperature, and then opening the mould to obtain a copper rod;
F. and finally, spraying a protective coating on the surface of the copper rod.
In this embodiment, the pre-melting temperature in step B is 800 ℃ and the time is 50 min.
In this embodiment, the purification flux component in step C includes, by weight, 20 parts of magnesium chloride, 10 parts of cerium carbonate, 4 parts of potassium tetraborate, 5 parts of sodium fluorosilicate, 3 parts of cryolite, and 4 parts of boron carbide.
In this example, in step C, the melting furnace was heated to 1200 ℃.
In this example, the casting temperature in step D was 1350 ℃.
In this embodiment, the cooling manner in step E is a combination of air cooling and water cooling.
In this example, the protective coating in step F was composed of 30% of a polytetrafluoroethylene nanoparticle dispersion, 30% of nano ceramic beads, and 40% of a heat-resistant resin polymer.
Example two:
a copper rod processing technology comprises the following steps:
A. pretreating waste copper;
B. pre-melting the pretreated waste copper in a melting furnace, and then slagging off;
C. adding a purification flux into the melt after slagging off, and then continuing heating the melting furnace;
D. pouring the purified molten liquid, and injecting the molten liquid into a prefabricated copper rod mould;
E. rapidly cooling the copper rod mould to normal temperature, and then opening the mould to obtain a copper rod;
F. and finally, spraying a protective coating on the surface of the copper rod.
In this example, the pre-melting temperature in step B was 1000 ℃ and the time was 70 min.
In this embodiment, the purification flux component in step C includes, by weight, 30 parts of magnesium chloride, 20 parts of cerium carbonate, 10 parts of potassium tetraborate, 15 parts of sodium fluorosilicate, 9 parts of cryolite, and 10 parts of boron carbide.
In this example, in step C, the melting furnace was heated to 1400 ℃.
In this embodiment, the casting temperature in step D is 1380 ℃.
In this embodiment, the cooling manner in step E is a combination of air cooling and water cooling.
In this example, the protective coating in step F was composed of 30% of a polytetrafluoroethylene nanoparticle dispersion, 30% of nano ceramic beads, and 40% of a heat-resistant resin polymer.
Example three:
a copper rod processing technology comprises the following steps:
A. pretreating waste copper;
B. pre-melting the pretreated waste copper in a melting furnace, and then slagging off;
C. adding a purification flux into the melt after slagging off, and then continuing heating the melting furnace;
D. pouring the purified molten liquid, and injecting the molten liquid into a prefabricated copper rod mould;
E. rapidly cooling the copper rod mould to normal temperature, and then opening the mould to obtain a copper rod;
F. and finally, spraying a protective coating on the surface of the copper rod.
In this example, the pre-melting temperature in step B was 850 ℃ and the time was 55 min.
In this embodiment, the purification flux component in step C includes, by weight, 22 parts of magnesium chloride, 12 parts of cerium carbonate, 5 parts of potassium tetraborate, 6 parts of sodium fluorosilicate, 4 parts of cryolite, and 5 parts of boron carbide.
In this example, in step C, the melting furnace was heated to 1250 ℃.
In this example, the casting temperature in step D was 1360 ℃.
In this embodiment, the cooling manner in step E is a combination of air cooling and water cooling.
In this example, the protective coating in step F was composed of 30% of a polytetrafluoroethylene nanoparticle dispersion, 30% of nano ceramic beads, and 40% of a heat-resistant resin polymer.
Example four:
a copper rod processing technology comprises the following steps:
A. pretreating waste copper;
B. pre-melting the pretreated waste copper in a melting furnace, and then slagging off;
C. adding a purification flux into the melt after slagging off, and then continuing heating the melting furnace;
D. pouring the purified molten liquid, and injecting the molten liquid into a prefabricated copper rod mould;
E. rapidly cooling the copper rod mould to normal temperature, and then opening the mould to obtain a copper rod;
F. and finally, spraying a protective coating on the surface of the copper rod.
In this example, the pre-melting temperature in step B was 950 ℃ and the time was 65 min.
In this embodiment, the purification flux component in step C includes, by weight, 28 parts of magnesium chloride, 18 parts of cerium carbonate, 8 parts of potassium tetraborate, 13 parts of sodium fluorosilicate, 8 parts of cryolite, and 8 parts of boron carbide.
In this example, in step C, the melting furnace was heated to 1380 ℃.
In this embodiment, the casting temperature in step D is 1380 ℃.
In this embodiment, the cooling manner in step E is a combination of air cooling and water cooling.
In this example, the protective coating in step F was composed of 30% of a polytetrafluoroethylene nanoparticle dispersion, 30% of nano ceramic beads, and 40% of a heat-resistant resin polymer.
Example five:
a copper rod processing technology comprises the following steps:
A. pretreating waste copper;
B. pre-melting the pretreated waste copper in a melting furnace, and then slagging off;
C. adding a purification flux into the melt after slagging off, and then continuing heating the melting furnace;
D. pouring the purified molten liquid, and injecting the molten liquid into a prefabricated copper rod mould;
E. rapidly cooling the copper rod mould to normal temperature, and then opening the mould to obtain a copper rod;
F. and finally, spraying a protective coating on the surface of the copper rod.
In this example, the pre-melting temperature in step B was 880 ℃ and the time was 56 min.
In this embodiment, the purification flux component in step C includes, by weight, 24 parts of magnesium chloride, 14 parts of cerium carbonate, 6 parts of potassium tetraborate, 12 parts of sodium fluorosilicate, 7 parts of cryolite, and 9 parts of boron carbide.
In this example, in step C, the melting furnace was heated to 1320 ℃.
In this example, the casting temperature in step D was 1370 ℃.
In this embodiment, the cooling manner in step E is a combination of air cooling and water cooling.
In this example, the protective coating in step F was composed of 30% of a polytetrafluoroethylene nanoparticle dispersion, 30% of nano ceramic beads, and 40% of a heat-resistant resin polymer.
Example six:
a copper rod processing technology comprises the following steps:
A. pretreating waste copper;
B. pre-melting the pretreated waste copper in a melting furnace, and then slagging off;
C. adding a purification flux into the melt after slagging off, and then continuing heating the melting furnace;
D. pouring the purified molten liquid, and injecting the molten liquid into a prefabricated copper rod mould;
E. rapidly cooling the copper rod mould to normal temperature, and then opening the mould to obtain a copper rod;
F. and finally, spraying a protective coating on the surface of the copper rod.
In this embodiment, the pre-melting temperature in step B is 900 ℃ and the time is 60 min.
In this embodiment, the purification flux component in step C includes, by weight, 25 parts of magnesium chloride, 25 parts of cerium carbonate, 7 parts of potassium tetraborate, 10 parts of sodium fluorosilicate, 6 parts of cryolite, and 7 parts of boron carbide.
In this example, in step C, the melting furnace was heated to 1300 ℃.
In this example, the casting temperature in step D was 1300 ℃.
In this embodiment, the cooling manner in step E is a combination of air cooling and water cooling.
In this example, the protective coating in step F was composed of 30% of a polytetrafluoroethylene nanoparticle dispersion, 30% of nano ceramic beads, and 40% of a heat-resistant resin polymer.
In conclusion, the copper rod processing technology adopted by the invention is simple to operate, and the obtained copper rod has high purity, good hardness, difficult oxidation and deformation and long service life; the adopted purifying flux has good chemical stability and less harmful gas amount, can more effectively discharge and remove impurities, slag inclusion and harmful gas in the molten liquid, and improves the purity of the molten liquid.
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 (7)
1. A copper rod processing technology is characterized in that: the method comprises the following steps:
A. pretreating waste copper;
B. pre-melting the pretreated waste copper in a melting furnace, and then slagging off;
C. adding a purification flux into the melt after slagging off, and then continuing heating the melting furnace;
D. pouring the purified molten liquid, and injecting the molten liquid into a prefabricated copper rod mould;
E. rapidly cooling the copper rod mould to normal temperature, and then opening the mould to obtain a copper rod;
F. and finally, spraying a protective coating on the surface of the copper rod.
2. The copper rod processing technology of claim 1, wherein: the pre-melting temperature in the step B is 800-1000 ℃, and the time is 50-70 min.
3. The copper rod processing technology of claim 1, wherein: and the purification flux component in the step C comprises 20-30 parts of magnesium chloride, 10-20 parts of cerium carbonate, 4-10 parts of potassium tetraborate, 5-15 parts of sodium fluosilicate, 3-9 parts of cryolite and 4-10 parts of boron carbide according to parts by weight.
4. The copper rod processing technology of claim 1, wherein: in the step C, the temperature of the melting furnace is raised to 1200-1400 ℃.
5. The copper rod processing technology of claim 1, wherein: the casting temperature in the step D is 1350-1380 ℃.
6. The copper rod processing technology of claim 1, wherein: and E, adopting a mode of combining air cooling and water cooling to cool in the step E.
7. The copper rod processing technology of claim 1, wherein: and in the step F, the protective coating consists of 30 percent of polytetrafluoroethylene nanoparticle dispersion liquid, 30 percent of nano ceramic microspheres and 40 percent of heat-resistant resin polymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010818493.5A CN111945011A (en) | 2020-08-14 | 2020-08-14 | Copper rod machining process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010818493.5A CN111945011A (en) | 2020-08-14 | 2020-08-14 | Copper rod machining process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111945011A true CN111945011A (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010818493.5A Pending CN111945011A (en) | 2020-08-14 | 2020-08-14 | Copper rod machining process |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009226419A (en) * | 2008-03-19 | 2009-10-08 | Furukawa Electric Co Ltd:The | Method for producing copper or copper alloy wire rod and copper or copper alloy wire rod |
| CN106086462A (en) * | 2016-08-10 | 2016-11-09 | 安徽晋源铜业有限公司 | A kind of up-drawing method that is suitable for prepares the melt combined purifying method of oxygen-free copper bar |
| CN106086445A (en) * | 2016-08-10 | 2016-11-09 | 安徽晋源铜业有限公司 | A kind of cleaning molten method of oxygen-free copper bar |
| CN106676389A (en) * | 2016-12-22 | 2017-05-17 | 苏州劲元油压机械有限公司 | High-strength corrosion-resistant steel for oil conveying pipe and processing technology thereof |
| CN107304463A (en) * | 2016-04-22 | 2017-10-31 | 汤阴县天海碳素有限公司 | A kind of processing technology of low oxygen glitter copper lever |
-
2020
- 2020-08-14 CN CN202010818493.5A patent/CN111945011A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009226419A (en) * | 2008-03-19 | 2009-10-08 | Furukawa Electric Co Ltd:The | Method for producing copper or copper alloy wire rod and copper or copper alloy wire rod |
| CN107304463A (en) * | 2016-04-22 | 2017-10-31 | 汤阴县天海碳素有限公司 | A kind of processing technology of low oxygen glitter copper lever |
| CN106086462A (en) * | 2016-08-10 | 2016-11-09 | 安徽晋源铜业有限公司 | A kind of up-drawing method that is suitable for prepares the melt combined purifying method of oxygen-free copper bar |
| CN106086445A (en) * | 2016-08-10 | 2016-11-09 | 安徽晋源铜业有限公司 | A kind of cleaning molten method of oxygen-free copper bar |
| CN106676389A (en) * | 2016-12-22 | 2017-05-17 | 苏州劲元油压机械有限公司 | High-strength corrosion-resistant steel for oil conveying pipe and processing technology thereof |
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Application publication date: 20201117 |