CN1172011C - Hot spraying special alloy for resisting seawater corrosion and its process - Google Patents
Hot spraying special alloy for resisting seawater corrosion and its process Download PDFInfo
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- CN1172011C CN1172011C CNB011284595A CN01128459A CN1172011C CN 1172011 C CN1172011 C CN 1172011C CN B011284595 A CNB011284595 A CN B011284595A CN 01128459 A CN01128459 A CN 01128459A CN 1172011 C CN1172011 C CN 1172011C
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Abstract
The present invention relates to a hot-sprayed special alloy with sea water corrosion resistance and a preparation process thereof. The hot-sprayed special alloy is prepared from the components of the percentage by weight: 0.01% to 10% of iron, 0.001% to 1% of rare earth and zinc in balancing amount. The preparation process comprises: first, a common crucible and an electric furnace are adopted to carry out normal-pressure smelting at the temperature of 490 to 800 DEG C, and a proper amount of bactericide covering agent is added to the common crucible; second, industrial pure iron is added to the common crucible, and the mixed material is stirred for 2 to 15 minutes until the industrial pure iron is completely melted; third, the mixed material is kept to stand for 2 to 10 minutes; fourth, the crucible is taken out of the electric furnace, and a proper amount of refining agents is added to the crucible for refining; fifth, then the mixed rare earth is added to the crucible; finally, when the temperature of the alloy melting liquid reaches the specified temperature of 500 to 570 DEG C, the alloy melting liquid is cast into an alloy pig. The hot-sprayed special alloy has the advantages of low price and long service life (numbers of times that of antirust paint in general). When the hot-sprayed special alloy is applied to ships and seagoing vessels, a repairing time interval can be largely prolonged (the repairing time interval is prolonged from three years to ten years in general).
Description
Technical field
The present invention relates to aseptic technic field, metallic surface, specifically a kind of seawater corrosion resistance is used for the zinc alloy and the technology thereof of thermospray.
Background technology
The anticorrosion problem of ferrous materials and member thereof is the problem of scientific worker's positive regard always.Current, be used to improve the material surface performance, of a great variety with the technology of the erosion resistance of improving material, this is comprising hot-spraying techniques, electroplating technology, hot dip process technology, electroless plating technology, conversion film technology and some other coating technology.With regard to hot-spraying techniques, in the surface treatment of material atmospheric corrosion resistance, obtained widely and used, as thermospray zinc, aluminium and alloy thereof, and obtained good effect.To the steel and iron member in the ocean environment, the more worth people's attention that causes of its solidity to corrosion.In recent years; each universities and colleges and R﹠D institution; to how using the metal thermal spraying technology; solution does not make substantial progress such as hull underwater corrosive problem always. and existing hot-spraying techniques is applied to the seawater member; its antiseptic principle is the galvanic protection theory of sacrificial anode; countless facts have proved now; this is the protection way of mechanism with the sacrificial anode; under the marine atmosphere condition; after compound with the high molecular polymer organic coating; still can be effective; in case be used for the iron structure thing under the seawater; enter metallic coating (zinc; aluminium; aluminium zinc) the sacrificial protection stage, its coating just can very fast and seawater eroding, and causes comprehensive failure. and United States Navy has expressly provided that this method must not be used for the underwater sites of naval vessels.
The content of invention
The objective of the invention is to develop zinc alloy and the technology that a kind of long seawater corrosion resistance of anti-sea-water corrosion life-span is used for thermospray.
Zinc alloy and its weight percentages of technology thereof that seawater corrosion resistance of the present invention is used for thermospray are: iron 0.01-10%; Rare earth 0.001-1%; Zinc is remainder.
The zinc alloy production technique that seawater corrosion resistance of the present invention is used for thermospray is:
Adopt common crucible, electric furnace carries out the normal pressure melting, adopts the thermopair temperature control.In the fusion process, at first with the zinc fusing, the control furnace temperature is in 490-800 ℃ melting scope, add an amount of muriate insulating covering agent, add technically pure iron then, and stirred 2-15 minute, treat that pure iron melts fully after, stablized 2-10 minute, take out crucible, add an amount of refining agent and carry out refining, add mishmetal, when treating that the alloy melt temperature reaches 500-570 ℃ of regulation, promptly pourable alloy pig.
Seawater corrosion resistance of the present invention is used for the zinc alloy of thermospray and the advantage of technology is that thermospray zinc alloy technology is used for the protection against corrosion under water of marine steel iron construction, has further enlarged the Application Areas of hot-spraying techniques.Zinc alloy of the present invention, not only cheap, and aboundresources.Zinc alloy construction technology of the present invention is easy, but both wire drawing was used for electric arc spraying, can make alloy powder again, is used for flame plating.Facts have proved that be several times of iron structure impregnating material under existing naval vessel, the seawater its work-ing life, the present invention has filled up domestic blank, is in a leading position in the world.
Embodiment
Embodiment one
Adopt common crucible, electric furnace carries out the normal pressure melting, adopts the thermopair temperature control.In the fusion process, at first 8kg zinc is dissolved, the control furnace temperature is in 490-800 ℃ melting scope, the muriate insulating covering agent that adds 80g, add technically pure iron 480g then, and stirred 2-15 minute, treat that technically pure iron melts fully after, stablized 2-10 minute, take out crucible, the refining agent that adds 40g carries out refining, adds the 5g mishmetal, when treating that the alloy melt temperature reaches 500-570 ℃ of regulation, promptly pourable alloy pig.
Embodiment two
Adopt common crucible, electric furnace carries out the normal pressure melting, adopts the thermopair temperature control. in the fusion process, at first 7.603kg zinc is dissolved, the control furnace temperature adds the muriate insulating covering agent of 80g in 490-800 ℃ melting scope, add technically pure iron 880g then, and stirred 2-15 minute, treat that pure iron melts fully after, stablized 2-10 minute, take out crucible, the refining agent that adds 40g carries out refining, adds the 2g mishmetal, when treating that the alloy melt temperature reaches 500-570 ℃ of regulation, promptly pourable alloy pig.
Embodiment three
Adopt common crucible, electric furnace carries out the normal pressure melting, adopts the thermopair temperature control. in the fusion process, at first 8.369kg zinc is dissolved, the control furnace temperature adds the muriate insulating covering agent of 80g in 490-800 ℃ melting scope, add technically pure iron 110g then, and stirred 2-15 minute, treat that pure iron melts fully after, stablized 2-10 minute, take out crucible, the refining agent that adds 40g carries out refining, adds the 8g mishmetal, when treating that the alloy melt temperature reaches 500-570 ℃ of regulation, promptly pourable alloy pig.
Claims (2)
1. seawater corrosion resistance is used for the zinc alloy of thermospray, it is characterized in that its composition weight percent is iron 0.01-10%; Rare earth 0.001-1%; Zinc is remainder;
2. seawater corrosion resistance is used for the zinc alloy technology of thermospray, it is characterized in that: adopt common crucible electric furnace to carry out the normal pressure melting, adopt the thermopair temperature control.In the fusion process, at first with the zinc fusing, the control furnace temperature is in 490-800 ℃ of normal pressure melting scope, add an amount of muriate insulating covering agent, add technically pure iron then, and stirred 2-15 minute, treat that pure iron melts fully after, stablized 2-10 minute, take out crucible, add an amount of refining agent and carry out refining, add mishmetal, when treating that the alloy melt temperature reaches 500-570 ℃ of regulation, promptly pourable alloy pig.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011284595A CN1172011C (en) | 2001-09-17 | 2001-09-17 | Hot spraying special alloy for resisting seawater corrosion and its process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011284595A CN1172011C (en) | 2001-09-17 | 2001-09-17 | Hot spraying special alloy for resisting seawater corrosion and its process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1405342A CN1405342A (en) | 2003-03-26 |
| CN1172011C true CN1172011C (en) | 2004-10-20 |
Family
ID=4668314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011284595A Expired - Fee Related CN1172011C (en) | 2001-09-17 | 2001-09-17 | Hot spraying special alloy for resisting seawater corrosion and its process |
Country Status (1)
| Country | Link |
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| CN (1) | CN1172011C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104651664B (en) * | 2015-03-13 | 2017-04-05 | 西安爱德万思医疗科技有限公司 | A kind of tough Zn-Fe-RE systems kirsite of the degradable corrosion-proof and high-strength of human body and its application |
| CN104689369B (en) * | 2015-03-13 | 2017-06-30 | 西安爱德万思医疗科技有限公司 | A kind of tough Zn-Fe systems kirsite of the degradable corrosion-proof and high-strength of human body and its application |
| DK3222757T3 (en) * | 2016-03-23 | 2018-10-29 | Dr Ing Max Schloetter Gmbh & Co Kg | METHOD AND DEVICE FOR SOLUTION OF ZINC |
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2001
- 2001-09-17 CN CNB011284595A patent/CN1172011C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1405342A (en) | 2003-03-26 |
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