CN116590533A - Treatment method for improving quality of copper water during copper alloy strip casting production - Google Patents
Treatment method for improving quality of copper water during copper alloy strip casting production Download PDFInfo
- Publication number
- CN116590533A CN116590533A CN202310447439.8A CN202310447439A CN116590533A CN 116590533 A CN116590533 A CN 116590533A CN 202310447439 A CN202310447439 A CN 202310447439A CN 116590533 A CN116590533 A CN 116590533A
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- Prior art keywords
- copper
- furnace
- copper water
- heat preservation
- charcoal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005266 casting Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000003610 charcoal Substances 0.000 claims abstract description 34
- 238000004321 preservation Methods 0.000 claims abstract description 28
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 claims abstract description 18
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 18
- 239000007789 gas Substances 0.000 claims description 27
- 238000003723 Smelting Methods 0.000 claims description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- 229910045601 alloy Inorganic materials 0.000 claims description 13
- 239000000956 alloy Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- RIRXDDRGHVUXNJ-UHFFFAOYSA-N [Cu].[P] Chemical group [Cu].[P] RIRXDDRGHVUXNJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000011449 brick Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 238000007872 degassing Methods 0.000 abstract description 4
- 238000010924 continuous production Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 11
- 230000007547 defect Effects 0.000 description 6
- 125000004429 atom Chemical group 0.000 description 5
- 239000002893 slag Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000006356 dehydrogenation reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000010309 melting process Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- YZCKVEUIGOORGS-UHFFFAOYSA-N Hydrogen atom Chemical compound [H] YZCKVEUIGOORGS-UHFFFAOYSA-N 0.000 description 1
- 229910001096 P alloy Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- 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
- C22B15/0028—Smelting or converting
- C22B15/003—Bath smelting or converting
- C22B15/0039—Bath smelting or converting in electric furnaces
-
- 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
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/111—Treating the molten metal by using protecting powders
-
- 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
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/116—Refining the metal
-
- 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
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/116—Refining the metal
- B22D11/117—Refining the metal by treating with gases
-
- 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
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/006—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with use of an inert protective material including the use of an inert gas
-
- 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
- C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
-
- 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
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- 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
Abstract
The invention belongs to the technical field of continuous production of copper alloy strips, and particularly relates to a treatment method for improving the quality of copper water in the casting production of copper alloy strips. In the heat preservation stage, the granular carbon covering agent and charcoal are mixed for covering the surface of a power frequency heat preservation furnace, nitrogen equipment is additionally arranged on the top of a furnace chamber of the power frequency heat preservation furnace, and the nitrogen equipment protects the charcoal and the granular carbon covering agent in the furnace chamber by using nitrogen; the furnace end box of the industrial frequency heat preservation furnace is covered with the red-burned charcoal and the granular carbon covering agent, and the copper water quality is improved by optimizing the covering of the copper water surface and purifying the copper water to achieve the effects of degassing the copper water and preventing air from entering the copper water.
Description
Technical Field
The invention belongs to the technical field of continuous production of copper alloy strips, and particularly relates to a treatment method for improving the quality of copper water during casting production of copper alloy strips.
Background
In the production of copper and copper alloys, the gases which are most likely to contact the melt and are relatively harmful are hydrogen and water vapor. Hydrogen is one of the most readily absorbed gases by copper liquid in large quantities and is soluble in almost all metals and their alloys. Oxygen properties are also active, but more forms oxides with other metals. Factors of gas generation in the copper water are classified into two types, i.e., invasive bubbles and precipitative bubbles.
1. Invasive air bubbles
The sealing performance of the smelting furnace and the heat preservation furnace is poor, copper water in the furnace and the crystallizer is covered too thin or exposed, and the like, so that the probability of entering copper water from air by gas is increased, the oxygen absorption amount and the hydrogen absorption amount are increased, a small amount of gas can be removed through copper-phosphorus alloy, zinc and the like of intermediate alloy, and can be realized by adjusting the casting cooling strength, but the condition that degassing is incomplete due to excessive invasion is caused, and the gas does not escape in time in the casting process, so that holes exist in the casting or on the surface.
2. Precipitated bubbles
There are three forms of gas evolution. The gas is dissolved in the form of atoms in the metal melt or in the crystal lattice to form a solid solution. The gas exceeding the solubility and the insoluble gas are likely to precipitate at the time of solidification, and exist in the form of bubbles or pores. If the chemical affinity between a gas and an element in a metal is greater than the affinity between the gas atoms, a compound may be formed. The first gas atoms diffuse from the metal interior to the metal surface, leaving the adsorbed state. This form is difficult to carry out due to the high cooling rate and high viscosity of the molten metal. The second gas atoms form a compound with certain elements in the metal, and are precipitated in the form of nonmetallic inclusions. The third gas atoms form gas molecules within the metal, which precipitate as bubbles. If the bubbles cannot escape the surface of the molten metal, bubbles will form inside the metal. The atomic hydrogen can be largely dissolved in the copper alloy liquid, if degassing quality is poor in smelting, and when the alloy liquid is solidified, supersaturated hydrogen dissolved in the alloy liquid is gradually separated out to form bubbles, and the bubbles which fail to escape from the surface of the alloy liquid become air hole defects after solidification or can not be timely discharged to form the bubbles due to the factors of excessively high casting speed, excessively high cooling strength and the like.
Therefore, poor copper water surface coverage causes poor copper water quality caused by air entering or gas in the copper water not being discharged and the like, and is a main factor for generating peeling and bubble defects of copper alloy products.
Disclosure of Invention
The invention aims to solve the problems of peeling and bubble defects caused by poor copper water quality in copper alloy strip casting, and provides a treatment method for improving the copper water quality in copper alloy strip casting production.
The invention is realized by adopting the following technical scheme: a method for improving the quality of copper water in the smelting and casting process of copper alloy strip includes such steps as mixing granular carbon with charcoal, applying it to the surface of medium-frequency smelting furnace, reducing the probability of gas to enter copper water, increasing the tightness and heat-insulating effect of copper water, adding a blowing unit at bottom of medium-frequency smelting furnace, exhausting copper liquid from bottom of medium-frequency smelting furnace by using nitrogen with purity higher than 99.99% via air brick and sand, removing hydrogen in copper water, homogenizing components and temp, discharging the impurities in copper water along with gas, adding deoxidized intermediate alloy, deoxidizing, and purifying copper water.
Charcoal is added into each intermediate frequency smelting furnace after the melting process and slag skimming, copper water is required not to be exposed in the melting process, the thickness is required to be 100-150mm after slag skimming, the charcoal particle size is more than 40mm, the charcoal can play roles in deoxidizing, insulating, isolating air and preventing oxidization and air suction after being added into the copper water, but because the particle size is large, small gaps exist among particles, the effect of isolating air and insulating heat is insufficient, and especially the gaps at the contact position of charcoal and furnace wall are large, so that quality problems can be caused. The particle size of the granular carbon covering agent is 3-8mm, the tightness is good, but the deoxidizing effect and the heat preservation effect are poor, the granular carbon covering agent and the deoxidizing effect are combined, the granular carbon covering agent can be effectively distributed among charcoal gaps, the heat preservation effect and the tightness are improved, air is effectively isolated, and the optimal use effect is achieved.
The granular carbon covering agent is mixed with charcoal to make up the covering defect of the existing charcoal, and really plays roles of deoxidizing, insulating heat, isolating air, preventing oxidation and absorbing air. Because the covering effect is improved, the oxidized slag bonding of the copper water surface is lighter, the slag bonding strength and frequency can be reduced, and the production efficiency is improved.
When the medium frequency smelting furnace is used for melting and standing, nitrogen with purity of over 99.99 percent is introduced into the medium frequency smelting furnace by adopting a furnace bottom blowing device, large bubbles in the copper water are stirred and smashed, and the large bubbles are lifted in the form of small bubbles to be separated from the copper water, so that the dehydrogenation is carried out, and the process needs about ten minutes. Meanwhile, the oxygen content in the copper water is increased, and the deoxidization and dehydrogenation effects are achieved by adding the deoxidization intermediate alloy.
According to the treatment method for improving the quality of copper water in the copper alloy strip casting production, in the heat preservation stage of the copper alloy strip, the granular carbon covering agent and charcoal are mixed and used for covering the surface of a power frequency heat preservation furnace, so that the probability of gas entering copper water is reduced, the tightness and heat preservation effect of copper water are improved, nitrogen equipment is additionally arranged on the top of a furnace chamber of the power frequency heat preservation furnace, the nitrogen equipment protects charcoal and the granular carbon covering agent in the furnace chamber by using nitrogen with the purity of over 99.99%, air is prevented from entering, the charcoal and the covering agent are prevented from being too burnt, and exposure and cost waste are caused; in addition, when the furnace end box of the power frequency heat preservation furnace adopts the red-burned charcoal and the granular carbon covering agent to cover copper water, and the unburned charcoal is added, the condition of incomplete exhaust probably exists, so that the quality effect of the copper water closest to the crystallizer is poor, and the hidden quality trouble exists.
Introducing nitrogen with purity of over 99.99% into a furnace chamber of a power frequency heat preservation furnace, forming a protective layer on the surfaces of charcoal and granular carbon covering agent by utilizing the nitrogen, and adopting proper flow, wherein the proper flow cannot be too large or too small, so that the gas in the molten copper cannot be discharged, and the proper flow cannot play a protective role. In addition, as the furnace end box is internally provided with a nitrogen-free protection device, the charcoal and the covering agent which are not burnt to be red also have an exhaust process, and can lead to insufficient exhaust under the condition of insufficient standing time, and bubbles in the molten copper enter a crystallizer and can not be timely exhausted, thereby causing the defects of peeling and bubbles. The burning charcoal and covering agent are exhausted, and the adding of the charcoal and covering agent into the furnace end box does not affect the quality of the copper water in the furnace end box.
According to the treatment method for improving the quality of copper water during copper alloy strip casting production, when the medium-frequency smelting furnace and the power frequency heat preservation furnace are used for surface coverage, 80% -90% of the surfaces in the furnace are covered by charcoal, 10% -20% of the surfaces are covered by particle covering agents, and finally the surface of the copper water is completely covered.
The treatment method for improving the quality of copper water during the casting production of the copper alloy strip is characterized in that the deoxidized intermediate alloy is phosphor copper or zinc ingot intermediate alloy.
The method optimizes three aspects of copper surface coverage, medium frequency smelting furnace copper purification, power frequency heat preservation furnace hearth coverage and furnace end box coverage, achieves the effects of copper degassing and preventing air from entering the copper, improves the quality of the copper, and effectively eliminates the peeling and bubble defects of copper alloy products.
Detailed Description
A method for improving the quality of copper water in the smelting and casting process of copper alloy strip includes such steps as mixing granular carbon with charcoal, applying it to the surface of medium-frequency smelting furnace, reducing the probability of gas to enter copper water, increasing the tightness and heat-insulating effect of copper water, adding a blowing unit at bottom of medium-frequency smelting furnace, exhausting copper liquid from bottom of medium-frequency smelting furnace by using nitrogen with purity higher than 99.99% via air brick and sand, removing hydrogen in copper water, homogenizing components and temp, discharging the impurities in copper water along with gas, adding deoxidized intermediate alloy, deoxidizing, and purifying copper water.
In the heat preservation stage of the copper alloy strip, the granular carbon covering agent and charcoal are mixed for covering the surface of a power frequency heat preservation furnace, so that the probability of gas entering copper water is reduced, the tightness and heat preservation effect of the copper water are improved, nitrogen equipment is additionally arranged on the top of a hearth of the power frequency heat preservation furnace, the charcoal and the granular carbon covering agent in the hearth are protected by the nitrogen equipment through nitrogen with the purity of over 99.99%, air is prevented from entering, the charcoal and the covering agent are prevented from being burnt too much, and the exposure and cost waste are caused; in addition, when the furnace end box of the power frequency heat preservation furnace adopts the red-burned charcoal and the granular carbon covering agent to cover copper water, and the unburned charcoal is added, the condition of incomplete exhaust probably exists, so that the quality effect of the copper water closest to the crystallizer is poor, and the hidden quality trouble exists.
When the medium frequency smelting furnace and the power frequency heat preservation furnace are used for surface covering, 80% -90% of the surfaces in the furnace are covered by charcoal, 10% -20% of the surfaces are covered by a particle covering agent, and finally the copper water surface is completely covered.
Claims (4)
1. A treatment method for improving the quality of molten copper during the casting production of copper alloy strips is characterized by comprising the following steps: in the copper alloy strip smelting stage, the granular carbon covering agent is mixed with charcoal to be used for covering the surface of a medium-frequency smelting furnace, the probability of gas entering copper water is reduced, the tightness and the heat preservation effect of the copper water are improved, a furnace bottom blowing device is added to the medium-frequency smelting furnace, nitrogen with the purity of over 99.99% is used for exhausting copper liquid from the furnace bottom of the medium-frequency smelting furnace through air bricks and air-permeable sand, hydrogen in the copper water is effectively removed, components and temperature are uniform, meanwhile, impurities in the copper water are discharged along with the gas in the process of floating up, then an deoxidizing intermediate alloy is added to deoxidize the copper water, and the copper water is purified.
2. The method for improving the quality of molten copper during casting production of copper alloy strips according to claim 1, wherein the method comprises the following steps: in the heat preservation stage of the copper alloy strip, the granular carbon covering agent and charcoal are mixed for covering the surface of a power frequency heat preservation furnace, so that the probability of gas entering copper water is reduced, the tightness and heat preservation effect of the copper water are improved, nitrogen equipment is additionally arranged on the top of a hearth of the power frequency heat preservation furnace, the charcoal and the granular carbon covering agent in the hearth are protected by the nitrogen equipment through nitrogen with the purity of over 99.99%, air is prevented from entering, the charcoal and the covering agent are prevented from being burnt too much, and the exposure and cost waste are caused; in addition, the furnace end box of the industrial frequency heat preservation furnace is covered with copper water by adopting red-burned charcoal and granular carbon covering agent.
3. The method for improving the quality of molten copper during the casting production of the copper alloy strip according to claim 2, wherein the method comprises the following steps: when the medium frequency smelting furnace and the power frequency heat preservation furnace are used for surface covering, 80% -90% of the surfaces in the furnace are covered by charcoal, 10% -20% of the surfaces are covered by a particle covering agent, and finally the copper water surface is completely covered.
4. A method for improving the quality of copper water in the casting production of copper alloy strips according to claim 1, 2 or 3, wherein: the deoxidizing intermediate alloy is phosphor copper or zinc ingot intermediate alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310447439.8A CN116590533A (en) | 2023-04-24 | 2023-04-24 | Treatment method for improving quality of copper water during copper alloy strip casting production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310447439.8A CN116590533A (en) | 2023-04-24 | 2023-04-24 | Treatment method for improving quality of copper water during copper alloy strip casting production |
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| Publication Number | Publication Date |
|---|---|
| CN116590533A true CN116590533A (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310447439.8A Pending CN116590533A (en) | 2023-04-24 | 2023-04-24 | Treatment method for improving quality of copper water during copper alloy strip casting production |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117684013A (en) * | 2024-01-31 | 2024-03-12 | 赤峰金通铜业有限公司 | Device and method for reducing incidence rate of copper smelting indium beryllium |
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2023
- 2023-04-24 CN CN202310447439.8A patent/CN116590533A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117684013A (en) * | 2024-01-31 | 2024-03-12 | 赤峰金通铜业有限公司 | Device and method for reducing incidence rate of copper smelting indium beryllium |
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