CN103660428A - Steel plate plated with aluminium-zinc alloy containing rare earths and preparation method of steel plate - Google Patents
Steel plate plated with aluminium-zinc alloy containing rare earths and preparation method of steel plate Download PDFInfo
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- CN103660428A CN103660428A CN201310606941.5A CN201310606941A CN103660428A CN 103660428 A CN103660428 A CN 103660428A CN 201310606941 A CN201310606941 A CN 201310606941A CN 103660428 A CN103660428 A CN 103660428A
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Abstract
The invention discloses a steel plate plated with aluminium-zinc alloy containing rare earths and a preparation method of the steel plate. The steel plate comprises a first plating aluminium-zinc alloy layer, a substrate and a second plating aluminium-zinc alloy layer which are arranged in layers, wherein the first plating aluminium-zinc alloy layer and the second plating aluminium-zinc alloy layer are made from the same material and both adopt plating aluminium-zinc alloy containing the rare earths. The preparation method comprises the specific steps as follows: (1) pre-treating the substrate; (2) preparing a plating aluminium-zinc alloy dip-plating solution containing the rare earths; (3) dipping the pre-treated substrate into the dip-plating solution with a preset temperature, keeping the pre-treated substrate in the plating solution for a period of time, and then quickly and vertically taking out the pre-treated substrate; (4) after dip plating, the substrate is directly subject to air cooling treatment at the room temperature. According to the invention, the corrosion resistance and processing formability of the hot-dip coating of the product are improved; the liquidity of the melt is improved; yellowing is avoided; the salt mist resistance and scratch resistance are improved; the production efficiency of the product is increased; the production cost is reduced.
Description
Technical field
The present invention relates to hot-dip steel plate field, be specifically related to a kind of plate golding aluminium zinc alloy steel plate and production method thereof that contains rare earth.
Background technology
At first, for preventing that surface of steel plate from being corroded, extend its service life, at surface of steel plate, be coated with layer of metal zinc, the sheet metal of this zinc coating is called galvanized steel plain sheet.Use the color painted steel strip that galvanized steel plain sheet is substrate, outside zinc protection, the organic coating on zinc layer has played covering buffer action, can prevent that steel plate from getting rusty, and service life is longer than galvanized steel plain sheet, it is introduced that service life of coated steel sheet is than galvanized steel plain sheet long 50%.But, at different areas and different use positions, adopting the coloured painted coat steel plate of identical zinc-plated amount, coating of the same race, identical coating layer thickness, can be very different its service life.For example, in industrial area or coastal area, owing to being subject to the effect of sulfur dioxide gas in air or salinity, corrosion rate is accelerated, and be affected service life.In rainy season, coating is soaked by rainwater for a long time or at the position of great Yi dewfall too of the temperature difference day and night, all can be corroded quickly, and all can reduce service life.Al-Zn coated steel is a kind of alloy layer steel plate that is widely used in the numerous areas such as building materials, household electrical appliances, automobile, environment, machinery, boats and ships.
Al-Zn coated steel is cover to process at surface of steel plate alumin(i)um zinc alloy, is solidified and be comprised of 55% aluminium, 43.4% zinc and 1.6% silicon under 600 ℃ of high temperature, and its total, by aluminium-iron-silicon-zinc, forms a kind of alloy layer steel plate of fine and close quaternary crystalline solid.Aluminum-zinc alloy coil of strip " corrosion resistance be mainly because aluminium, the defencive function of aluminium.When zinc is worn, aluminium just forms the aluminium oxide of one deck densification, stops corrosion resistance material further to corrode inside.Alumin(i)um zinc alloy steel plate has good heat resistance, can bear the high temperature of more than 300 degree Celsius, very similar with the high temperature oxidation resistance of aludip, is often applied to stovepipe, baking box, luminaire and fluorescent lamp shade.
Summary of the invention
The plate golding aluminium zinc alloy steel plate and the production method thereof that contain rare earth that the object of the present invention is to provide that a kind of corrosion resistance is good, formability is high, the mobility of melt is high, xanthochromia does not occur, high, the anti-scratch performance of salt fog resistance performance is good, have improved production efficiency, reduced production costs.
For solving the problems of the technologies described above, technical scheme of the present invention is, a kind of plate golding aluminium zinc alloy steel plate that contains rare earth is provided, comprise the first plate golding aluminium zinc alloy layer, substrate and the second plate golding aluminium zinc alloy layer that by layer, arrange successively, described the first plate golding aluminium zinc alloy layer is identical with the material of described the second plate golding aluminium zinc alloy layer, and described the first plate golding aluminium zinc alloy layer and described the second plate golding aluminium zinc alloy layer are the plate golding aluminium zinc alloy that contains rare earth.
In a preferred embodiment of the present invention, described substrate is cold bundle steel plate.
For solving the problems of the technologies described above, technical scheme of the present invention is, a kind of production method of the plate golding aluminium zinc alloy steel plate that contains rare earth is provided, and concrete steps comprise:
(1) substrate is carried out to pretreatment;
(2) the zinc-aluminium-alloy immersion plating liquid that configuration contains rare earth;
(3) will in the immersion plating liquid of pretreated substrate immersion design temperature, keep a period of time, then vertical taking-up rapidly;
(4) the direct room temperature air cooling of the substrate after immersion plating is processed.
In a preferred embodiment of the present invention, described pretreatment for to soak 30min oil removing, cleaning in the 6% metal detergent aqueous solution of 80～90 ℃, and the 30min that eliminates rust in 10% volume fraction hydrochloric acid, cleans.In 60 ℃, the 35% volume fraction ZnCl23NH4Cl aqueous solution, help plating 60s.Before hot-dip, in 130 ℃ of air, be incubated 60s.
In a preferred embodiment of the present invention, described in contain rare earth zinc-aluminium-alloy comprise the component of following weight percent content: aluminium 45-50%, silicon 2.0-2.4%, rare earth 0.16-0.23%, and the zinc of surplus and inevitable impurity.
In a preferred embodiment of the present invention, the collocation method of the described zinc-aluminium-alloy immersion plating liquid that contains rare earth is: in hot-dip aluminizing zinc melt, control and add rare earth, obtain the hot-dip coating aluminium-zinc alloy melt that contains rare earth, its middle rare earth refers to the mishmetal of cerium or lanthanum or cerium and lanthanum.
In a preferred embodiment of the present invention, described substrate retention time in immersion plating liquid is 60s.
Of the present invention is a kind of plate golding aluminium zinc alloy steel plate and production method thereof that contains rare earth, improved the corrosion resistance of the hot-dip coating of product, formability, improve the mobility of melt, there is not xanthochromia, improve salt fog resistance performance and anti-scratch performance, also improved the production efficiency of product, reduced production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation in the high tack hot-dip galvanizing sheet steel of resistance to fingerprint one preferred embodiment of invention.
In accompanying drawing, each mark is as follows: 1, the first plate golding aluminium zinc alloy layer, 2, substrate, the 3, second plate golding aluminium zinc alloy layer.
The specific embodiment
Below preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
Of the present invention is a kind of plate golding aluminium zinc alloy steel plate that contains rare earth, as shown in Figure 1, comprise the first plate golding aluminium zinc alloy layer 1, substrate 2 and the second plate golding aluminium zinc alloy layer 3 that by layer, arrange successively, described the first plate golding aluminium zinc alloy layer 1 is identical with the material of described the second plate golding aluminium zinc alloy layer 3, and described the first plate golding aluminium zinc alloy layer 1 and described the second plate golding aluminium zinc alloy layer 3 are the plate golding aluminium zinc alloy that contains rare earth.
In a preferred embodiment of the present invention, described substrate 2 is cold bundle steel plate.
For solving the problems of the technologies described above, technical scheme of the present invention is, a kind of production method of the plate golding aluminium zinc alloy steel plate that contains rare earth is provided, and concrete steps comprise:
(1) substrate is carried out to pretreatment;
(2) the zinc-aluminium-alloy immersion plating liquid that configuration contains rare earth;
(3) will in the immersion plating liquid of pretreated substrate immersion design temperature, keep a period of time, then vertical taking-up rapidly;
(4) the direct room temperature air cooling of the substrate after immersion plating is processed.
Described pretreatment for to soak 30min oil removing, cleaning in the 6% metal detergent aqueous solution of 80～90 ℃, and the 30min that eliminates rust in 10% volume fraction hydrochloric acid, cleans.In 60 ℃, the 35% volume fraction ZnCl23NH4Cl aqueous solution, help plating 60s.Before hot-dip, in 130 ℃ of air, be incubated 60s.
The described zinc-aluminium-alloy that contains rare earth comprises the component of following weight percent content: aluminium 45-50%, silicon 2.0-2.4%, rare earth 0.16-0.23%, and the zinc of surplus and inevitable impurity.
The collocation method of the described zinc-aluminium-alloy immersion plating liquid that contains rare earth is: in hot-dip aluminizing zinc melt, control and add rare earth, obtain the hot-dip coating aluminium-zinc alloy melt that contains rare earth, its middle rare earth refers to the mishmetal of cerium or lanthanum or cerium and lanthanum.
Described substrate retention time in immersion plating liquid is 60s.
Embodiment mono-:
Sample: hot-dip galvanizing sheet steel: base material Q235, thickness 0.5mm, the plate golding aluminium zinc alloy that contains rare earth.
The purity of zinc is 99.997%, the elements such as all the other metal-rare-earths, aluminium, and purity all reaches 99.99%.6% metal detergent is water-soluble, 10% volume fraction hydrochloric acid, the 35%ZnCl23NH4Cl aqueous solution.
Concrete steps: substrate pretreatment: by common metal washing agent alkali cleaning for sample, and use industrial chlorohydric acid pickling, fluxing agent raw material is pure for analyzing.Surface of steel plate processing procedure for to soak 30min oil removing, cleaning in the 6% metal detergent aqueous solution of 80～90 ℃, and the 30min that eliminates rust in 10% volume fraction hydrochloric acid, cleans.In 60 ℃, the 35% volume fraction ZnCl23NH4Cl aqueous solution, help plating 60s.Before hot-dip, in 130 ℃ of air, be incubated 60s.The zinc-aluminium-alloy immersion plating liquid that configuration contains rare earth: control in hot-dip aluminizing zinc melt and add rare earth, obtain the hot-dip coating aluminium-zinc alloy melt that contains rare earth, its middle rare earth refers to the mishmetal of cerium or lanthanum or cerium and lanthanum.Afterwards, keeping 60s in the immersion plating liquid of steel plate immersion design temperature, then vertical taking-up rapidly.After immersion plating, directly room temperature air cooling (air cooling) is processed.
Of the present invention is a kind of plate golding aluminium zinc alloy steel plate and production method thereof that contains rare earth, improved the corrosion resistance of the hot-dip coating of product, formability, improve the mobility of melt, there is not xanthochromia, improve salt fog resistance performance and anti-scratch performance, also improved the production efficiency of product, reduced production cost.
The foregoing is only the specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention; the variation that can expect without creative work or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (7)
1. a plate golding aluminium zinc alloy steel plate that contains rare earth, it is characterized in that: comprise the first plate golding aluminium zinc alloy layer, substrate and the second plate golding aluminium zinc alloy layer that by layer, arrange successively, described the first plate golding aluminium zinc alloy layer is identical with the material of described the second plate golding aluminium zinc alloy layer, and described the first plate golding aluminium zinc alloy layer and described the second plate golding aluminium zinc alloy layer are the plate golding aluminium zinc alloy that contains rare earth.
2. the high tack hot-dip galvanizing sheet steel of resistance to fingerprint according to claim 1, is characterized in that: described substrate is cold bundle steel plate.
3. a production method that contains the plate golding aluminium zinc alloy steel plate of rare earth, is characterized in that: concrete steps comprise:
(1) substrate is carried out to pretreatment;
(2) the zinc-aluminium-alloy immersion plating liquid that configuration contains rare earth;
(3) will in the immersion plating liquid of pretreated substrate immersion design temperature, keep a period of time, then vertical taking-up rapidly;
(4) the direct room temperature air cooling of the substrate after immersion plating is processed.
4. the production method of the plate golding aluminium zinc alloy steel plate that contains rare earth according to claim 3, it is characterized in that: described pretreatment for soaking 30min oil removing, cleaning in the 6% metal detergent aqueous solution of 80～90 ℃, the 30min that eliminates rust in 10% volume fraction hydrochloric acid, cleans; In 60 ℃, the 35% volume fraction ZnCl23NH4Cl aqueous solution, help plating 60s; Before hot-dip, in 130 ℃ of air, be incubated 60s.
5. the production method of the plate golding aluminium zinc alloy steel plate that contains rare earth according to claim 3, it is characterized in that: described in contain rare earth zinc-aluminium-alloy comprise the component of following weight percent content: aluminium 45-50%, silicon 2.0-2.4%, rare earth 0.16-0.23%, and the zinc of surplus and inevitable impurity.
6. the production method of the plate golding aluminium zinc alloy steel plate that contains rare earth according to claim 3, it is characterized in that: described in contain rare earth the collocation method of zinc-aluminium-alloy immersion plating liquid be: in hot-dip aluminizing zinc melt, control and add rare earth, obtain the hot-dip coating aluminium-zinc alloy melt that contains rare earth, its middle rare earth refers to the mishmetal of cerium or lanthanum or cerium and lanthanum.
7. the production method of the plate golding aluminium zinc alloy steel plate that contains rare earth according to claim 3, is characterized in that: described substrate retention time in immersion plating liquid is 60s.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111962391A (en) * | 2020-08-25 | 2020-11-20 | 济南银河路桥试验检测有限公司 | Special armor for viaduct anti-collision wall and preparation method thereof |
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| CN1392284A (en) * | 2002-07-09 | 2003-01-22 | 华中科技大学 | process for hot immersion plating iron and steel with aluminium-zinc alloy |
| CN101396886A (en) * | 2008-10-10 | 2009-04-01 | 常州常松金属复合材料有限公司 | Aluminum zinc metal composite steel plate |
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| CN101538670A (en) * | 2009-04-15 | 2009-09-23 | 顾宏富 | Hot dipped multi-element Al-Zn alloy and production technology thereof |
| CN101736195A (en) * | 2008-11-24 | 2010-06-16 | 攀钢集团研究院有限公司 | Hot-dip coating aluminium-zinc alloy steel plate and production method thereof |
| CN102560310A (en) * | 2012-02-16 | 2012-07-11 | 常州大学 | Hot dip plating Zn-Al-Si-Mg alloy plating and hot dip plating method thereof |
| CN203680923U (en) * | 2013-11-27 | 2014-07-02 | 常熟华冶薄板有限公司 | Aluminum-zinc-alloy plated steel plate containing rare earth |
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- 2013-11-27 CN CN201310606941.5A patent/CN103660428A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1392284A (en) * | 2002-07-09 | 2003-01-22 | 华中科技大学 | process for hot immersion plating iron and steel with aluminium-zinc alloy |
| CN101396886A (en) * | 2008-10-10 | 2009-04-01 | 常州常松金属复合材料有限公司 | Aluminum zinc metal composite steel plate |
| CN101736195A (en) * | 2008-11-24 | 2010-06-16 | 攀钢集团研究院有限公司 | Hot-dip coating aluminium-zinc alloy steel plate and production method thereof |
| CN101457320A (en) * | 2009-01-04 | 2009-06-17 | 上海大学 | Al-Zn-Mg-Si alloy for hot dipping steel |
| CN101538670A (en) * | 2009-04-15 | 2009-09-23 | 顾宏富 | Hot dipped multi-element Al-Zn alloy and production technology thereof |
| CN102560310A (en) * | 2012-02-16 | 2012-07-11 | 常州大学 | Hot dip plating Zn-Al-Si-Mg alloy plating and hot dip plating method thereof |
| CN203680923U (en) * | 2013-11-27 | 2014-07-02 | 常熟华冶薄板有限公司 | Aluminum-zinc-alloy plated steel plate containing rare earth |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111962391A (en) * | 2020-08-25 | 2020-11-20 | 济南银河路桥试验检测有限公司 | Special armor for viaduct anti-collision wall and preparation method thereof |
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Application publication date: 20140326 |