CN108838356B - Continuous casting production method of oxygen-free silver copper - Google Patents
Continuous casting production method of oxygen-free silver copper Download PDFInfo
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- CN108838356B CN108838356B CN201810788792.1A CN201810788792A CN108838356B CN 108838356 B CN108838356 B CN 108838356B CN 201810788792 A CN201810788792 A CN 201810788792A CN 108838356 B CN108838356 B CN 108838356B
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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
- B22D11/10—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
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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
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
- B22D11/004—Copper alloys
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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
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/111—Treating the molten metal by using protecting powders
Abstract
The invention discloses a continuous casting production method of oxygen-free silver and copper, which relates to the technical field of metal material processing, and comprises the following steps: drying high-purity electrolytic copper in a preheating furnace to ensure that the surface of the high-purity electrolytic copper is anhydrous and oilless, transferring the dried high-purity electrolytic copper into a melting furnace to be melted, transferring copper water after the high-purity electrolytic copper is melted into a heat preservation furnace through a siphon, processing the melted copper water into oxygen-free copper C10200 in the heat preservation furnace, and continuously producing the oxygen-free copper C10200 into oxygen-free silver C10500/C10700 after three oxygen-free copper ingots C10200 are produced under the condition that P and O reach 10 PPM. Through setting up totally closed casting environment, let in protective gas and through covering the charcoal of calcining at the copper liquid level in the bottom to keep apart air and copper liquid direct contact, guaranteed that the copper liquid oxygen content is stabilized in qualified scope in the production process, the protective gas that blows in through the bottom simultaneously makes copper water and silver homogeneous mixing, makes the silver content of the oxygen-free silver copper of producing even.
Description
Technical Field
The invention relates to the technical field of metal material processing, in particular to a continuous casting production method of oxygen-free silver and copper.
Background
The oxygen-free silver copper has good conductivity, fluidity and wettability, is a base metal material for manufacturing the commutator, has the characteristics of high hardness, strong wear resistance and welding resistance and the like, and the commutator manufactured by the oxygen-free silver copper can ensure the requirements of high rotating speed and electromagnetic load of the micro motor.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art: at present, the processing technology of oxygen-free silver and copper for producing commutators at home and abroad adopts vertical semi-continuous casting, but the technology has the problems of unstable oxygen content and non-uniform silver content.
Disclosure of Invention
In order to overcome the defects of related products in the prior art, the invention provides a continuous casting production method of oxygen-free silver and copper, which solves the problems of unstable oxygen content and non-uniform silver content in the existing oxygen-free silver and copper processing technology.
The invention provides a continuous casting production method of oxygen-free silver and copper, which comprises the following steps:
step a, drying high-purity electrolytic copper in a preheating furnace to ensure that the surface of the high-purity electrolytic copper is anhydrous and oilless, transferring the dried high-purity electrolytic copper into a melting furnace to be melted, transferring the molten copper of the high-purity electrolytic copper into a holding furnace through a siphon, and processing the molten copper into oxygen-free copper C10200 in the holding furnace;
b, after three oxygen-free copper ingots C10200 are produced under the condition that P and O reach 10PPM, continuously producing the oxygen-free copper C10200 into oxygen-free silver C10500/C10700, wherein when the vertical continuous casting machine saw the previous oxygen-free copper ingot C10200, the copper water in the heat preservation furnace is transferred to 83% -86% of the effective capacity of the heat preservation furnace; step c, when the copper water capacity in the heat preservation furnace is reduced to 78% -80% of the effective capacity of the heat preservation furnace, setting the casting speed to be 43-50 mm/min;
and d, when the copper water capacity in the heat preservation furnace is reduced to 74% -76% of the effective capacity of the heat preservation furnace, adding silver ingots, wherein the silver ingot capacity is 0.034% -0.1% of the effective capacity of the heat preservation furnace, performing component analysis after 15 minutes, marking on the ingot below the crystallizer after the components are qualified, and sampling to obtain a finished product sample after 18 minutes.
In some embodiments of the present invention, in step a, the melting furnace and the holding furnace are fully sealed, and a siphon is used to connect the melting furnace and the holding furnace.
In some embodiments of the invention, two sets of air hole brick devices are arranged at the bottom of the melting furnace, three sets of air hole brick devices are arranged at the bottom of the holding furnace, and the melting furnace and the holding furnace are both filled with N from the bottom through the air hole brick devices2a/CO mixed protective gas, and covering the copper liquid surface with calcined charcoal.
In certain embodiments of the invention, N2The purity is 99.99 percent, the dew point temperature is-60 DEG CThe inlet pressure is 4-6bar, and the inlet pressure is 3-5bar after decompression; the purity of CO is 99.97%, the gas inlet pressure is 1-10bar, and the pressure after decompression is 3-5 bar.
In certain embodiments of the invention, the method further comprises: when oxygen-free silver copper C10500/C10700 is continuously produced, when the copper liquid of the holding furnace is reduced to 65-66% of the effective capacity of the holding furnace, a slag removing door of the holding furnace is opened, silver ingots with the effective capacity of 0.012-0.03% of the effective capacity of the holding furnace are added at the copper falling point of the holding furnace and pressed into the copper liquid, after the holding furnace is closed and sealed, copper water is transferred from the melting furnace to ensure that the copper water in the holding furnace keeps 83-86% of the effective capacity of the holding furnace, and samples are taken 18-20 minutes after the silver ingots are added.
In certain embodiments of the invention, the method further comprises: setting the casting speed to be 60-70 mm/min, setting the crystallizer cooling water pressure of a casting machine to be 4.0-6.0 bar, controlling the temperature difference of inlet and outlet water to be less than or equal to 7 ℃, and setting the vibration frequency of the casting machine to be 50-60 Hz.
In certain embodiments of the invention, the method further comprises: the oxygen-free silver-copper C10700 with high silver content is produced firstly, and the oxygen-free silver-copper C10500 with low silver content and the oxygen-free silver-copper C10200 with low silver content are produced in turn according to the residual silver content.
In some embodiments of the present invention, in the step a, when P reaches 8PPM and O reaches 6PPM, and after three oxygen-free copper ingots C10200 are stably produced, oxygen-free silver copper C10500/C10700 is produced.
Compared with the prior art, the invention has the following advantages:
according to the embodiment of the invention, a fully-closed casting environment is set, protective gas is introduced into the bottom of the casting environment, and calcined charcoal is covered on the surface of the copper liquid to isolate air from the copper liquid to be in direct contact with the copper liquid, so that the oxygen content of the copper liquid is ensured to be stabilized within a qualified range in the production process, and meanwhile, the copper liquid and silver are uniformly mixed through the protective gas blown into the bottom of the casting environment, so that the silver content of the produced oxygen-free silver-copper is uniform.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention will be 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. This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present disclosure is set forth in order to provide a more thorough understanding thereof. 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. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The continuous casting production method of the oxygen-free silver and copper comprises the following steps:
step a, drying the high-purity electrolytic copper in a preheating furnace to ensure that the surface of the high-purity electrolytic copper is anhydrous and oilless, transferring the dried high-purity electrolytic copper into a melting furnace to be melted, transferring the molten copper of the high-purity electrolytic copper into a holding furnace through a siphon, and processing the molten copper into oxygen-free copper C10200 in the holding furnace.
In the embodiment of the invention, the melting furnace and the holding furnace are fully sealed, and the melting furnace is connected with the holding furnace through a siphon pipe; two sets of air hole brick devices are arranged at the bottom of the melting furnace, three sets of air hole brick devices are arranged at the bottom of the holding furnace, and N is introduced from the bottom of the melting furnace and the holding furnace through the air hole brick devices2the/CO mixed protective gas and the calcined charcoal are covered on the surface of the copper liquid, the air is isolated from directly contacting the copper liquid, the copper liquid can be refined and purified through bottom blowing, the oxygen content in the copper liquid is guaranteed to be less than or equal to 10ppm, and the oxygen content in the melting furnace and the heat preservation furnace can be detected in real time through a self-contained direct detection device for the oxygen content in the copper water.
Wherein N is2The purity is 99.99%, the dew point temperature is-60 ℃, the air inlet pressure is 4-6bar, and the pressure is 3-5bar after decompression; the purity of CO is 99.97%, the gas inlet pressure is 1-10bar, and the pressure after decompression is 3-5 bar.
Of course, it should be noted that the mixed protective gas introduced in the embodiment of the present invention is not limited toN2the/CO mixed gas, in other embodiments of the present invention, may be selected according to the actual production environment or cost, as long as the air can be isolated from the molten copper to be directly contacted, and the molten copper can be refined and purified by bottom blowing, which is not limited in the present invention.
B, after three oxygen-free copper ingots C10200 are produced under the condition that P and O reach 10PPM, continuously producing the oxygen-free copper C10200 into oxygen-free silver C10500/C10700, wherein when the vertical continuous casting machine saw the previous oxygen-free copper ingot C10200, the copper water in the heat preservation furnace is transferred to 83% -86% of the effective capacity of the heat preservation furnace;
specifically, for example, when the P reaches 8PPM and the O reaches 6PPM, and after three oxygen-free copper ingots C10200 are stably produced, oxygen-free silver copper C10500/C10700 is produced.
Step c, when the copper water capacity in the heat preservation furnace is reduced to 78% -80% of the effective capacity of the heat preservation furnace, setting the casting speed to be 43-50 mm/min;
and d, when the copper water capacity in the heat preservation furnace is reduced to 74% -76% of the effective capacity of the heat preservation furnace, adding silver ingots, wherein the silver ingot capacity is 0.034% -0.1% of the effective capacity of the heat preservation furnace, performing component analysis after 15 minutes, marking on the ingot below the crystallizer after the components are qualified, and sampling to obtain a finished product sample after 18 minutes.
In the embodiment of the invention, the continuous casting production method of the oxygen-free silver copper can continuously produce the oxygen-free silver copper C10500/C10700, when the copper liquid of the holding furnace is reduced to 65-66% of the effective capacity of the holding furnace, a slag-off door of the holding furnace is opened, silver ingots with the effective capacity of 0.12-0.03% of the effective capacity of the holding furnace are added at the copper falling point of the holding furnace and pressed into the copper liquid, the holding furnace is closed and sealed, then copper water is transferred from the melting furnace to ensure that the copper water in the holding furnace is kept 83-86% of the effective capacity of the holding furnace, and samples are taken 18-20 minutes after the silver ingots are added; setting the casting speed to be 60-70 mm/min, setting the crystallizer cooling water pressure of a casting machine to be 4.0-6.0 bar, controlling the temperature difference of inlet and outlet water to be less than or equal to 7 ℃, and setting the vibration frequency of the casting machine to be 50-60 Hz.
In the embodiment of the invention, the continuous casting production method of the oxygen-free silver and copper can also be used for producing the oxygen-free silver and copper C10700 with high silver content first, sequentially producing the oxygen-free silver and copper C10500 and the oxygen-free copper C10200 with low silver content according to the residual silver content, and automatically selecting a proper production scheme according to the actual production requirement to realize the best production efficiency and the best finished product yield, wherein the silver content of the oxygen-free silver and copper C10500 produced by the embodiment of the invention is 0.034% -0.06%, and the silver content of the oxygen-free silver and copper C10700 is 0.085% -0.01%.
The principle of the continuous casting method for producing oxygen-free silver copper according to the present invention is illustrated below with reference to specific examples:
in the embodiment of the invention, the effective capacity of the melting furnace is 12t, the total capacity is 32t, the rated power is 3000kW, the melting temperature is 1180-1200 ℃, and the melting rate is 10 t/h. The input power of the holding furnace can be continuously adjusted, the temperature of the holding furnace can be accurately and automatically controlled, and the temperature fluctuation range is +/-4 ℃; the effective capacity of the holding furnace is 16t, the total capacity is 22t, the rated power is 500kW, and the holding temperature is 1160-1180 ℃.
Drying the high-purity electrolytic copper in a preheating furnace to ensure that the surface of the high-purity electrolytic copper is anhydrous and oilless, transferring the dried high-purity electrolytic copper into a melting furnace to be melted, transferring the molten copper of the high-purity electrolytic copper into a holding furnace through a siphon, and processing the molten copper into oxygen-free copper C10200 in the holding furnace.
Before producing the oxygen-free silver copper C10500/C10700, the oxygen-free copper C10200 must be produced, and after three oxygen-free copper ingots C10200 are produced under the condition that P and O reach 10PPM, the oxygen-free silver copper C10500 and C10700 are produced.
When the production of the oxygen-free copper C10200 is converted into the production of oxygen-free silver C10500, when the vertical continuous casting machine saw cuts a previous oxygen-free copper ingot C10200, the copper water of the heat preservation furnace is converted to 13.5 +/-0.2 tons; when the weight of the copper water in the holding furnace is reduced to 12.5 tons, setting the casting speed to 50mm/min, when the weight of the copper water in the holding furnace is 12.0 +/-0.05 tons, adding 4.8 +/-0.02 kg of silver ingots, carrying out component analysis after 15 minutes, marking on the ingots below the crystallizer after the components are qualified, and sampling to obtain finished samples after 18 minutes; when the oxygen-free silver copper C10500 is continuously produced, when the copper liquid of the heat preserving furnace drops to 10.5 +/-0.05 tons, a slag removing door of the heat preserving furnace is opened, 1.25 +/-0.02 Kg of silver ingots are added at the copper dropping point of the heat preserving furnace, the adding amount can be properly adjusted and increased or reduced according to the last analysis result, the silver ingots are pressed into the copper liquid, the furnace door is closed and sealed, and then 3 +/-0.2 tons of copper water are transferred from the melting furnace to keep the weight of the copper water in the heat preserving furnace to be 13.5 +/-0.2 tons.
When the production of the oxygen-free copper C10200 is converted into the production of oxygen-free silver copper C10700, when a vertical continuous casting machine saw cuts a previous oxygen-free copper ingot C10200, the copper water of the heat preservation furnace is converted to 13.5 +/-0.2 tons; when the weight of the copper water in the heat preservation furnace is reduced to 12.7 tons, setting the casting speed to be 43mm/min, when the weight of the copper water in the heat preservation furnace is 12.5 +/-0.05 tons, adding 14 +/-0.02 kg of silver ingots, carrying out component analysis after 15 minutes, marking on the ingots below the crystallizer after the components are qualified, and sampling to obtain finished samples after 18 minutes; when the oxygen-free silver copper C10700 is continuously produced, when the copper liquid in the heat preservation furnace drops to 10.5 +/-0.05 tons, a slag removing door of the heat preservation furnace is opened, 2.85 +/-0.02 Kg of silver ingots are added at the copper dropping point of the heat preservation furnace, the adding amount can be properly adjusted and increased or reduced according to the last analysis result, the silver ingots are pressed into the copper liquid, the furnace door is closed and sealed, and then the copper liquid is transferred into 3 +/-0.2 tons of copper water from a melting furnace to keep the weight of the copper water in the heat preservation furnace to be 13.5 +/-0.2 tons.
In the casting process, operators need to pay close attention to the weight change of the copper liquid, timely supplement the silver ingots and convert the copper liquid from the melting furnace to the holding furnace, and the samples are taken 18 to 20 minutes after the silver ingots are added.
In the embodiment of the invention, after the oxygen-free silver-copper C10700 with high silver content is produced, when the C10500 with low silver content is produced, the copper liquid in the heat preservation furnace is reduced to 7.5 +/-0.2 tons, then the copper liquid is changed to 13.5 +/-0.2 tons, the pouring speed is set to be 43mm/min, and sampling analysis is carried out after 15 minutes; when the silver content is measured to reach 0.06%, the measurement is carried out according to the C10500 process, and the ingot is marked; when the oxygen-free silver copper C10500 is transferred to the oxygen-free copper C10200, 10 +/-0.5 tons of copper water are kept in a heat preservation furnace when a front oxygen-free copper ingot C10200 is sawn, 13.5 +/-0.2 tons of copper water are kept in the heat preservation furnace when an ingot is cast for 2 meters after the ingot is sawn, then the oxygen-free silver copper C10200 is produced according to a normal process, the residual silver amount is recorded, the record is not carried out after the silver content is less than 0.005 percent of the effective capacity of the heat preservation furnace, and the current production task is finished; through the direct detection technology of the oxygen content of the water with copper in the equipment, the free conversion production between the oxygen-free silver copper C10500 and C10700 and between the oxygen-free silver copper and the oxygen-free copper C10200 can be realized, the production efficiency and the quality are greatly improved, and the market demand is met.
It should be noted that, the parameters of the effective capacity, total capacity, rated power, melting temperature/holding temperature, etc. of the melting furnace and the holding furnace are not limited to the values given in the above embodiments, and in the actual batch production process, when the embodiments of the present invention comprehensively consider the factors such as actual production requirements and production environments, the melting furnace and the holding furnace that meet the production requirement parameters can be selected by themselves, and simultaneously, a proper amount of copper and silver are correspondingly added according to the relevant parameters and production requirements of the melting furnace and the holding furnace to produce oxygen-free silver copper with corresponding specifications, so that the present invention has good applicability.
According to the embodiment of the invention, a fully-closed casting environment is set, protective gas is introduced into the bottom of the casting environment, and calcined charcoal is covered on the surface of the copper liquid to isolate air from the copper liquid to be in direct contact with the copper liquid, so that the oxygen content of the copper liquid is ensured to be stabilized within a qualified range in the production process, and meanwhile, the copper liquid and silver are uniformly mixed through the protective gas blown into the bottom of the casting environment, so that the silver content of the produced oxygen-free silver-copper is uniform.
Those not described in detail in this specification are within the skill of the art. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing detailed description, or equivalent changes may be made in some of the features of the embodiments. All equivalents that can be substituted by the contents of the specification of the present invention and applied directly or indirectly to other related technical fields are within the scope of the present invention.
Claims (8)
1. A continuous casting production method of oxygen-free silver and copper is characterized by comprising the following steps:
step a, drying high-purity electrolytic copper in a preheating furnace to ensure that the surface of the high-purity electrolytic copper is anhydrous and oilless, transferring the dried high-purity electrolytic copper into a melting furnace to be melted, transferring the molten copper of the high-purity electrolytic copper into a holding furnace through a siphon, and processing the molten copper into oxygen-free copper C10200 in the holding furnace;
b, after three oxygen-free copper ingots C10200 are produced under the condition that P and O reach 10PPM, continuously producing the oxygen-free copper C10200 into oxygen-free silver C10500/C10700, wherein when the vertical continuous casting machine saw the previous oxygen-free copper ingot C10200, the copper water in the heat preservation furnace is transferred to 83% -86% of the effective capacity of the heat preservation furnace;
step c, when the copper water capacity in the heat preservation furnace is reduced to 78% -80% of the effective capacity of the heat preservation furnace, setting the casting speed to be 43-50 mm/min;
and d, when the copper water capacity in the heat preservation furnace is reduced to 74% -76% of the effective capacity of the heat preservation furnace, adding silver ingots, wherein the silver ingot capacity is 0.034% -0.1% of the effective capacity of the heat preservation furnace, performing component analysis after 15 minutes, marking on the ingot below the crystallizer after the components are qualified, and sampling to obtain a finished product sample after 18 minutes.
2. The method for producing oxygen-free silver and copper through continuous casting of claim 1, wherein in the step a, the melting furnace and the holding furnace are fully sealed, and a siphon is adopted for connecting the melting furnace and the holding furnace.
3. The method for producing oxygen-free silver and copper through continuous casting according to claim 1, wherein two sets of porous brick devices are arranged at the bottom of the melting furnace, three sets of porous brick devices are arranged at the bottom of the holding furnace, and N is introduced from the bottom of the melting furnace and the holding furnace through the porous brick devices2a/CO mixed protective gas, and covering the copper liquid surface with calcined charcoal.
4. The method for producing oxygen-free silver copper by continuous casting according to claim 3, wherein N is2The purity is 99.99 percent, the dew point temperature is-60 ℃,the inlet pressure is 4-6bar, and the inlet pressure is 3-5bar after decompression; the purity of CO is 99.97%, the gas inlet pressure is 1-10bar, and the pressure after decompression is 3-5 bar.
5. The method for the continuous casting production of oxygen-free silver copper according to claim 1, further comprising: when oxygen-free silver copper C10500/C10700 is continuously produced, when the copper liquid of the holding furnace is reduced to 65-66% of the effective capacity of the holding furnace, a slag removing door of the holding furnace is opened, silver ingots with the effective capacity of 0.012-0.03% of the effective capacity of the holding furnace are added at the copper falling point of the holding furnace and pressed into the copper liquid, after the holding furnace is closed and sealed, copper water is transferred from the melting furnace to ensure that the copper water in the holding furnace keeps 83-86% of the effective capacity of the holding furnace, and samples are taken 18-20 minutes after the silver ingots are added.
6. The method for the continuous casting production of oxygen-free silver copper according to claim 5, further comprising: setting the casting speed to be 60-70 mm/min, setting the crystallizer cooling water pressure of a casting machine to be 4.0-6.0 bar, controlling the temperature difference of inlet and outlet water to be less than or equal to 7 ℃, and setting the vibration frequency of the casting machine to be 50-60 Hz.
7. The method for the continuous casting production of oxygen-free silver copper according to claim 1, further comprising: the oxygen-free silver-copper C10700 with high silver content is produced firstly, and the oxygen-free silver-copper C10500 with low silver content and the oxygen-free silver-copper C10200 with low silver content are produced in turn according to the residual silver content.
8. The method for producing oxygen-free silver and copper by continuous casting according to claim 1, wherein in the steps a and b, when P reaches 8PPM and O reaches 6PPM, and after three oxygen-free copper ingots C10200 are stably produced, oxygen-free silver and copper C10500/C10700 are produced.
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| CN110343879B (en) * | 2019-07-26 | 2021-09-21 | 浙江天宁合金材料有限公司 | Oxygen-free copper-silver alloy casting production method |
| CN110343870B (en) * | 2019-07-26 | 2021-10-29 | 浙江天宁合金材料有限公司 | Oxygen-free copper casting production method |
| CN112059129A (en) * | 2020-07-15 | 2020-12-11 | 金龙精密铜管集团股份有限公司 | Production method of low-alloy-content copper pipe |
| CN113182499A (en) * | 2021-05-03 | 2021-07-30 | 芜湖恒泰有色线材股份有限公司 | Technology for adding nitrogen into carbon monoxide for quick deoxidization in copper smelting by upward drawing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1603436A (en) * | 2004-08-29 | 2005-04-06 | 陈行满 | Double covering deoxidation method for preparing high strength oxygen-free silver-copper alloy materials |
| CN1628924A (en) * | 2003-12-21 | 2005-06-22 | 黄四龙 | Process for producing oxygen-free silver-copper busbar, wire by continuous up-casting and extrusion method |
| CN103938019A (en) * | 2014-04-16 | 2014-07-23 | 黄学志 | Oxygen-free copper-based alloy and production process thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3349838A (en) * | 1965-06-04 | 1967-10-31 | American Smelting Refining | Float control valve for continuous casting |
| CN1063690C (en) * | 1997-11-14 | 2001-03-28 | 中国科学技术大学 | Method for plasma heating ladle online to cast continuously at constant low overheated temperature |
| CN1257301C (en) * | 2003-02-20 | 2006-05-24 | 宝钢集团上海五钢有限公司 | Method for producing continuous casting alloy steel containing S and Al |
| CN105063412A (en) * | 2015-07-30 | 2015-11-18 | 绍兴市力博电气有限公司 | High-conductivity oxygen-free copper silver alloy rod and production technology thereof |
| CN106086484B (en) * | 2016-06-28 | 2017-12-01 | 中铝华中铜业有限公司 | A kind of production technology for casting of hyperoxia tough pitch copper |
-
2018
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1628924A (en) * | 2003-12-21 | 2005-06-22 | 黄四龙 | Process for producing oxygen-free silver-copper busbar, wire by continuous up-casting and extrusion method |
| CN1603436A (en) * | 2004-08-29 | 2005-04-06 | 陈行满 | Double covering deoxidation method for preparing high strength oxygen-free silver-copper alloy materials |
| CN103938019A (en) * | 2014-04-16 | 2014-07-23 | 黄学志 | Oxygen-free copper-based alloy and production process thereof |
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