CN104451703A - Abrasion-resistant corrosion-resistant aluminum alloy sacrificial anode - Google Patents
Abrasion-resistant corrosion-resistant aluminum alloy sacrificial anode Download PDFInfo
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- CN104451703A CN104451703A CN201410777447.XA CN201410777447A CN104451703A CN 104451703 A CN104451703 A CN 104451703A CN 201410777447 A CN201410777447 A CN 201410777447A CN 104451703 A CN104451703 A CN 104451703A
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- aluminium alloy
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Abstract
The invention belongs to the field of metal materials, and particularly relates to an abrasion-resistant corrosion-resistant aluminum alloy sacrificial anode. The abrasion-resistant corrosion-resistant aluminum alloy sacrificial anode comprises the following components in percentage by weight: 10%-15% of Zn, 0.10%-0.15% of Sn, less than or equal to 0.08% of Si, less than or equal to 0.12% of Fe, less than or equal to 0.005% of Cu and the balance of aluminum. According to the abrasion-resistant corrosion-resistant aluminum alloy sacrificial anode, the aluminum alloy sacrificial anode is refined in grain by adding alloy elements, namely Zn and Sn elements, to an aluminum alloy, and the aluminum alloy achieves the anti-corrosion property and the abrasion-resistant property by adding the Zn and Sn elements in the percentage by weight; in addition, the usage of metal indium is prevented, so that the production cost of the sacrificial anode is greatly reduced, and a product has more competition in market competition.
Description
Technical field
The invention belongs to metal material field, be specifically related to a kind of wear resistant corrosion resistant sacrificial aluminium alloy anode.
Background technology
Be very harsh corrosive environment, corrosion and protection problem is the important topic that salt alkaline media steel structure faces as steel steel pipe, drilling rod etc. alkali.General people only can take into account by galvanic protection, protect just meet the demands to protected steel construction.But some are in saltings and use drilling rod, particularly oil drilling pipe, not only need to do rotproofing to it, also need the wear resisting property increasing drilling rod external layer preservation product.Because traditional drilling rod passes through sacrificial protection; because the wear resistance of its traditional sacrificial anodes is not strong; the anode cast in outside drilling rod is easy to the consumption that is worn; long-time preservative activity can not be played; so we need to develop a kind of type material now; namely there is antiseptic property, also there is wear resistance.
In order to solve the anticorrosion of drilling rod and wear-resisting problem, some experts of corrosion-resistant field are solved by the material improving drilling rod, but not only cost can be very high for such drilling rod, and can not solve the Anticorrosion of drilling rod completely.The starting material of a high-quality cost performance of current selection are also difficult to realize.Certainly pass through in these years to the protection of drilling rod in saltings, the application of sacrificial anode is a kind of fairly simple naturally, the higher selection of cost performance.
At present, adopt sacrificial anode to carry out anticorrosion for drilling rod, mainly adopt magnesium alloy, zinc alloy, aluminum alloy anode.Carry out anticorrosion for employing magnesium alloy anode, there is magnesium alloy anode current efficiency low, cause the anti-corrosion life of beam hanger obviously to decline.For employing zinc alloy anode, current efficiency is high, but the electrical capacity of zinc alloy is too low, not easily etching problem.For employing aluminum alloy anode, current efficiency improves, and there is uncorruptible same problem.Existing market adopts sacrificial anode, and there is maximum problem is that the wear resistance of sacrificial anode does not reach requirement, in drilling rod working process, there is the serious phenomenon that wears no resistance.
In current saltings, the utilization ratio of drilling rod particularly drilling well beam hanger is higher, and market is very large, and promotion prospect is extensive.If can develop, one is corrosion-resistant, wear-resistant aluminum alloy sacrificial anode is used on the drilling rod of saltings, and this product is bound to fill the domestic gaps.Research key issue, the research of the research and production technique chosen, fill a prescription of anticorrosive.
China CN103088346A reports a kind of sacrificial aluminium alloy anode, mainly adds Sn, Mn, is used in ocean environment, adds Mn element and plays elements such as reducing in aluminium alloy impurity F e, do not use the indium that price is high, but do not have abrasion resistant effect.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide a kind of wear resistant corrosion resistant sacrificial aluminium alloy anode, make sacrificial aluminium alloy anode grain refining, make its aluminium alloy reach antiseptic property and reach wear resisting property again.
Wear resistant corrosion resistant sacrificial aluminium alloy anode of the present invention, is grouped into by the one-tenth of following weight percentage:
Zn:10%-15%, Sn:0.10%-0.15%, Si≤0.08%, Fe≤0.12%, Cu≤0.005%, surplus aluminium.
The present invention by adding alloy element Zn, Sn element in aluminium alloy, make sacrificial aluminium alloy anode grain refining, Zn weight fraction is 10%-15%, Sn weight fraction is 0.10%-0.15%, Zn, Sn element is added according to weight percentage of the present invention, Zn addition is larger, change the atoms metal arrangement of anode, improve the wear resisting property of anode, make its aluminium alloy reach antiseptic property and reach wear resisting property again.
Product surface of the present invention produces Al (OH) in salt alkaline media in corrosion process
3, produce protective layer on the surface of drilling rod, isolated drilling rod and extraneous medium contact.
Wear resistant corrosion resistant sacrificial aluminium alloy anode preferably adopts casting technique to obtain or wear resistant corrosion resistant sacrificial aluminium alloy anode preferably adopts metallurgical casting to obtain.
Described wear resistant corrosion resistant sacrificial aluminium alloy anode, during use, uses each raw material of permanent magnetic stirring smelting furnace melting, ensures that anode components is in above-mentioned scope; Then the electrically heated of drilling well beam hanger is baked to 400 ± 50 DEG C, then it is outer melting liquid to be cast to drilling well beam hanger.
The temperature using the melting of permanent magnetic stirring smelting furnace is 750 ± 50 DEG C.
The raw material of permanent magnetic stirring smelting furnace melting is used to be the conventional material containing Zn, Sn and Al.
The electrically heated of drilling well beam hanger is baked to 400 ± 50 DEG C, the product cracking after casting can be prevented.
In sum, the present invention has the following advantages:
(1) the present invention by adding alloy element Zn, Sn element in aluminium alloy, makes sacrificial aluminium alloy anode grain refining, adds Zn, Sn element, make its aluminium alloy reach antiseptic property and reach wear resisting property again according to weight percentage of the present invention.
(2) avoid the use of indium metal, greatly reduce the production cost of sacrificial anode, make product more possess competitive power in market competition.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
Embodiment 1
A kind of wear resistant corrosion resistant sacrificial aluminium alloy anode, is grouped into by the one-tenth of following weight percentage:
Zn:10%, Sn:0.15%, Si≤0.08%, Fe≤0.12%, Cu≤0.005%, surplus aluminium.
Use each raw material of permanent magnetic stirring smelting furnace melting, the temperature of melting is 750 ± 50 DEG C, then the electrically heated of drilling well beam hanger is baked to 400 ± 50 DEG C, then it is outer melting liquid to be cast to drilling well beam hanger.
Industry inspection being carried out to the product prepared, by adding alloy element Zn, Sn element in aluminium alloy, making sacrificial aluminium alloy anode grain refining, make its aluminium alloy reach antiseptic property and reach wear resisting property again, meet the requirement of country to this product.
Comparative example 1
A kind of wear resistant corrosion resistant sacrificial aluminium alloy anode, is grouped into by the one-tenth of following weight percentage:
Zn:1.5%, Sn:0.10%, Mn0.15%, Si≤0.06%, Fe≤0.12%, Cu≤0.001%, surplus aluminium.
Use each raw material of permanent magnetic stirring smelting furnace melting, the temperature of melting is 750 ± 50 DEG C, then the electrically heated of drilling well beam hanger is baked to 400 ± 50 DEG C, then it is outer melting liquid to be cast to drilling well beam hanger.
The drilling well beam hanger that embodiment 1 and comparative example 1 prepare is carried out drilling well and do anode production use, drilling well beam hanger prepared by comparative example 1 occurs that in 3 months the problem of coming off appears in top layer, and the drilling well beam hanger that embodiment 1 prepares uses do not go wrong for 2 years.
Embodiment 2
A kind of wear resistant corrosion resistant sacrificial aluminium alloy anode, is grouped into by the one-tenth of following weight percentage:
Zn:15%, Sn:0.10%, Si≤0.08%, Fe≤0.12%, Cu≤0.005%, surplus aluminium.
Use each raw material of permanent magnetic stirring smelting furnace melting, the temperature of melting is 750 ± 50 DEG C, then the electrically heated of drilling well beam hanger is baked to 400 ± 50 DEG C, then it is outer melting liquid to be cast to drilling well beam hanger.
Industry inspection being carried out to the product prepared, by adding alloy element Zn, Sn element in aluminium alloy, making sacrificial aluminium alloy anode grain refining, make its aluminium alloy reach antiseptic property and reach wear resisting property again, meet the requirement of country to this product.
Embodiment 3
A kind of wear resistant corrosion resistant sacrificial aluminium alloy anode, is grouped into by the one-tenth of following weight percentage:
Zn:13%, Sn:0.12, Si≤0.08%, Fe≤0.12%, Cu≤0.005%, surplus aluminium.
Use each raw material of permanent magnetic stirring smelting furnace melting, the temperature of melting is 750 ± 50 DEG C, then the electrically heated of drilling well beam hanger is baked to 400 ± 50 DEG C, then it is outer melting liquid to be cast to drilling well beam hanger.
Industry inspection being carried out to the product prepared, by adding alloy element Zn, Sn element in aluminium alloy, making sacrificial aluminium alloy anode grain refining, make its aluminium alloy reach antiseptic property and reach wear resisting property again, meet the requirement of country to this product.
Claims (3)
1. a wear resistant corrosion resistant sacrificial aluminium alloy anode, is characterized in that: be grouped into by the one-tenth of following weight percentage:
Zn:10%-15%, Sn:0.10%-0.15%, Si≤0.08%, Fe≤0.12%, Cu≤0.005%, surplus aluminium.
2. wear resistant corrosion resistant sacrificial aluminium alloy anode according to claim 1, is characterized in that: wear resistant corrosion resistant sacrificial aluminium alloy anode adopts casting technique to obtain.
3. wear resistant corrosion resistant sacrificial aluminium alloy anode according to claim 1, is characterized in that: wear resistant corrosion resistant sacrificial aluminium alloy anode adopts metallurgical casting to obtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410777447.XA CN104451703A (en) | 2014-12-15 | 2014-12-15 | Abrasion-resistant corrosion-resistant aluminum alloy sacrificial anode |
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| CN201410777447.XA CN104451703A (en) | 2014-12-15 | 2014-12-15 | Abrasion-resistant corrosion-resistant aluminum alloy sacrificial anode |
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| CN104451703A true CN104451703A (en) | 2015-03-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463473A (en) * | 2015-12-29 | 2016-04-06 | 厦门火炬特种金属材料有限公司 | Aluminum alloy sacrificial anode used for water storage type water heater |
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| CN1309727A (en) * | 1997-10-02 | 2001-08-22 | 弗劳尔丹尼尔有限公司 | Cathodic protection methods and apparatus |
| CN1718858A (en) * | 2005-07-23 | 2006-01-11 | 太原理工大学 | High petential magnesium alloy sacrificial anode material and its manufacturing method |
| CN101033552A (en) * | 2006-03-08 | 2007-09-12 | 中国科学院海洋研究所 | Double layer aluminum alloy composite sacrificial anode |
| CN101586241A (en) * | 2009-06-20 | 2009-11-25 | 戴明安 | Aluminum zinc series alloy sacrificial anode for electric water heaters |
| CN101956197A (en) * | 2009-07-13 | 2011-01-26 | 淄博宏泰防腐有限公司 | High-efficiency multi-element magnesium alloy sacrificial anode and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463473A (en) * | 2015-12-29 | 2016-04-06 | 厦门火炬特种金属材料有限公司 | Aluminum alloy sacrificial anode used for water storage type water heater |
| CN105463473B (en) * | 2015-12-29 | 2020-08-21 | 厦门火炬特种金属材料有限公司 | Aluminum alloy sacrificial anode for water storage type water heater |
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Application publication date: 20150325 |