KR830002513B1 - Aluminum Alloy for Oilfield Anode - Google Patents
Aluminum Alloy for Oilfield Anode Download PDFInfo
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- KR830002513B1 KR830002513B1 KR1019820002164A KR820002164A KR830002513B1 KR 830002513 B1 KR830002513 B1 KR 830002513B1 KR 1019820002164 A KR1019820002164 A KR 1019820002164A KR 820002164 A KR820002164 A KR 820002164A KR 830002513 B1 KR830002513 B1 KR 830002513B1
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- South Korea
- Prior art keywords
- anode
- aluminum alloy
- oilfield
- aluminum
- alloy
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- 229910000838 Al alloy Inorganic materials 0.000 title claims description 7
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052738 indium Inorganic materials 0.000 claims description 6
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- 239000011777 magnesium Substances 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 239000011701 zinc Substances 0.000 claims description 5
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims 1
- 229910052733 gallium Inorganic materials 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 4
- 229910052700 potassium Inorganic materials 0.000 description 4
- 239000011591 potassium Substances 0.000 description 4
- 238000010828 elution Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- -1 aluminum-zinc-indium Chemical compound 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 210000000582 semen Anatomy 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
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- Prevention Of Electric Corrosion (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 발명 합금의 양극 전위와 시간 경과의 비교 도표이다.1 is a comparative chart of the anode potential and time course of the inventive alloy.
본 발명은 유전 양극에 유효한 원소를 적당한 배합에 의하여 제조가 용이하고 독성이 없으며 환경을 오염 시키지 않는 낮은 전위와 우수한 전류 효율을 가진 알루미늄 합금을 얻기 위하여 알루미늄-아연-인듐계 합금과 마그네슘과 칼륨을 첨가시켜서 된 유전 양극용 알루미늄 합금에 관한 것이다.The present invention uses aluminum-zinc-indium-based alloys, magnesium and potassium in order to obtain an aluminum alloy having a low potential and excellent current efficiency, which is easy to manufacture, non-toxic, and does not pollute the environment, by appropriate combination of elements effective for the dielectric anode. It relates to an aluminum alloy for dielectric anodes made by addition.
종래 알루미늄은 낮은 표준 전극 전위(-1.66V)와 높은 이론 발생 전기량(2.98A-br/q)을 가지고 있지만, 표면이 산화 피막으로 덮혀있기 때뭉에 해수중에서의 양극 전위는 약 -0.7V(포화 감흥 전극을 기준으로 한 값)밖에 나타나지 않는다.Conventionally, aluminum has a low standard electrode potential (-1.66 V) and a high theoretical generation amount (2.98 A-br / q), but since the surface is covered with an oxide film, the anode potential in seawater is about -0.7 V (saturated). Value based on the induction electrode).
그러나 알루미늄에 어떤 종류의 원소를 첨가함에 따라 낮은 양극 전위를 나타내는 합금을 얻기 위하여 알루미늄에 수은, 인듐, 카드뮴, 마그네슘, 아연, 주석등을 첨가한 각각의 조성을 가진 합금이 널리 사용되고 있으나,However, in order to obtain an alloy exhibiting a low anode potential by adding some kind of element to aluminum, alloys having respective compositions in which mercury, indium, cadmium, magnesium, zinc, and tin are added to aluminum are widely used.
이들을 각각 조성하여서 된 합금의 양극 전위는 -1.0∼-1.1V이며 유전효율은 70-85%밖에 되지 않을 뿐만 아니라, 수은 함유 양극은 제조시 발생하는 수은 증기의 제거에 유의해야 하고 사용 환경을 오염시킬 위험이 있었다.The anode potential of the alloy composed of these is -1.0 to -1.1V and the dielectric efficiency is only 70-85%. In addition, the mercury-containing anode should pay attention to the removal of mercury vapor generated during manufacturing and pollute the environment. There was a danger.
본 발명은 종래의 모든 문제점을 제기하고 낮은 양극 전위와 우수한 유전 효율을 가진 유전 양극용 알루미늄 합금을 얻고자 개발한 것으로,The present invention has been developed to obtain all the conventional problems and to obtain an aluminum alloy for a dielectric anode having a low anode potential and excellent dielectric efficiency,
순도 99.7%의 알루미늄에 아연 0.5-10%, 인듐 0.005-0.1%, 마그네슘0.1-4.0%, 칼륨0.005-0.1%, 를 첨가시켜서 된 알루미늄 합금에 관한 것이다.It relates to an aluminum alloy obtained by adding zinc 0.5-10%, indium 0.005-0.1%, magnesium 0.1-4.0%, potassium 0.005-0.1%, to aluminum with a purity of 99.7%.
본 발명의 유전 양극용 알루미늄 합금에 있어서 성분 조성범위를 수치 한정시킨 이유를 설명하면 다음과 같다.The reason why the component composition range is numerically limited in the aluminum alloy for dielectric anode according to the present invention is as follows.
아연을 0.5%-10% 첨가하면 낮은 양극 전위와 높은 전류효율이 얻어지지만 아연을 0.5% 미만으로 첨가하면 유전 효율이 낮아지고 아연을 10% 이상 첨가시켜도 큰 효과는 없는 것이다.If 0.5% -10% of zinc is added, low anode potential and high current efficiency are obtained, but if the zinc content is less than 0.5%, the dielectric efficiency is lowered.
인듐은 양극 전위를 저하시킴과 동시에 전류 효율을 상승시키는 성질이 있고 0.005% 이상의 함유가 필료하다.Indium has a property of lowering the anode potential and increasing the current efficiency, and the content of 0.005% or more is necessary.
그러나 0.5%를 초과하여 첨가시키면 양극의 용출 표면에 있어서 자기 부식이 증대하여 상온 및 저온의 해수증에서 사용할 때 전류 효율이 현저히 저하됨과 동시에 인듐은 고가의 금속이므로 높은 함유량은 경재적이 못되기 때문에 0.5% 이상 침지시킬 필요가 없다.However, the addition of more than 0.5% increases the self-corrosion on the elution surface of the anode, which leads to a significant decrease in current efficiency when used in seawater at room temperature and low temperature. In addition, since indium is an expensive metal, the high content is not economical. There is no need to immerse more than%.
마그네슘은 양극의 용출 상태를 개선하는데 효과적이며, 4%이상 첨가하면 더욱 역 효과가 날 뿐만 아니라 충격에 따른 발화의 위험성도 있기 때문에 유해한 것이다.Magnesium is effective in improving the elution state of the positive electrode and is harmful because addition of more than 4% is not only counterproductive but also risks fire from impact.
칼륨 0.005% 이상의 첨가로 낮은 양극 적위를 얻을 수 있지만 0.5% 이상 되면 전류 효율을 저하함과 동시에 용출면에 용해 얼룩을 해소하고 용해부에 끈적끈적한 정액을 생성하고 고가이므로 0.5% 이상의 첨가는 부적당한 것이다.Low anode declination can be obtained by adding more than 0.005% of potassium, but if it is more than 0.5%, current efficiency decreases, while dissolving dissolution stains on the elution surface, sticky semen is generated at the dissolving part, and the addition of more than 0.5% is not suitable will be.
이의 실시예를 들어 설명하면 다음과 같다.An embodiment thereof will be described below.
[실시예]EXAMPLE
순도 99.7% 이상의 알루미늄을 흙연 도가니 중에 용해하고 700℃에서 도합금 아연, 인듐, 칼륨을 첨가하여 잘교 반한 후 마그네슘을 첨가하여 충분회 교반한 다음 상기 조성의 합금을 주조했다.Aluminum with a purity of 99.7% or more was dissolved in an earthen crucible and stirred well at 700 ° C. by adding zinc alloy, indium, and potassium, followed by sufficient stirring with magnesium, followed by casting an alloy of the composition.
이것을 양극 전류 밀도를 1mA/cm2에 유지한 인공 해수중에서 240시간 통전 후의 양극 전위와 양극 전류 효율 시험을 행한 결과를 제 1표에 나타낸 것이다.Table 1 shows the results of the anode potential and anode current efficiency test after 240 hours of energization in artificial seawater in which the anode current density was maintained at 1 mA / cm 2 .
[제 1 표][Table 1]
본 발명 합금의 양극 전위는 제 1표와 비교도 표에 나타낸0것과 같이 양극 전위는 -1.05∼-1.1V를 계속 유지하고 안정한 값을 나타낼 뿐 만 아니라 전류 효율도 90% 이상을 나타내고 있으며, 용출 상태는 초기에 국부적으로 용출이 일어나지만 시간의 경과에 따라 전면적으로 용해하고 부식 생성물의 부착도 거의 없으며, 제조도 용이한 것이다.As shown in Table 1 and Comparative Diagram, the anode potential of the alloy of the present invention maintained a stable value of -1.05 to -1.1V and exhibits a stable value as well as a current efficiency of 90% or more. The state is initially eluted locally, but dissolves entirely over time, has little adhesion of corrosion products, and is easy to manufacture.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019820002164A KR830002513B1 (en) | 1982-05-18 | 1982-05-18 | Aluminum Alloy for Oilfield Anode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019820002164A KR830002513B1 (en) | 1982-05-18 | 1982-05-18 | Aluminum Alloy for Oilfield Anode |
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| Publication Number | Publication Date |
|---|---|
| KR830002513B1 true KR830002513B1 (en) | 1983-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019820002164A KR830002513B1 (en) | 1982-05-18 | 1982-05-18 | Aluminum Alloy for Oilfield Anode |
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| KR (1) | KR830002513B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017107511A1 (en) * | 2015-12-21 | 2017-06-29 | 比亚迪股份有限公司 | Aluminum alloy and preparation method thereof |
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- 1982-05-18 KR KR1019820002164A patent/KR830002513B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017107511A1 (en) * | 2015-12-21 | 2017-06-29 | 比亚迪股份有限公司 | Aluminum alloy and preparation method thereof |
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