CN107587096A - A kind of Hot-dip aluminum-silicon zinc yttrium magnesium plating solution and its or immersion - Google Patents
A kind of Hot-dip aluminum-silicon zinc yttrium magnesium plating solution and its or immersion Download PDFInfo
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- CN107587096A CN107587096A CN201711012393.8A CN201711012393A CN107587096A CN 107587096 A CN107587096 A CN 107587096A CN 201711012393 A CN201711012393 A CN 201711012393A CN 107587096 A CN107587096 A CN 107587096A
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Abstract
The invention belongs to metal hot dipping field, and in particular to a kind of hot-dip aluminizing zinc silicon yttrium magnesium plating solution and its or immersion.The solution composition skeleton symbol is AlaZnbSicYdMge；The mass ratio of each component is：53wt.% ＜ a ＜ 56wt.%, 43wt.% ＜ b ＜ 44wt.%, 1.3wt.% ＜ c ＜ 1.6w.t%, d=0.2wt.%, 0.2wt.% ＜ e ＜ 0.8wt.%.）The present invention can improve zinc liquid mobility, effectively reduce cadmia content, cadmia content can reduce by 65% or so by reasonably compounding.Pass through the control to cadmia content, it is possible to reduce the infringement to equipment, reduce maintenance of equipment cost.Extend liquation service life, increase the sustainability of production, increase production efficiency, increase economic efficiency.The present invention can effectively suppress the reaction between iron aluminium, improve plate surface quality, strengthen plasticity, improve product quality.
Description
Technical field
The invention belongs to metal hot dipping field, and in particular to a kind of hot-dip aluminizing zinc silicon yttrium magnesium plating solution and its hot-dip work
Skill.
Background technology
With increase of the society to high performance corrosion-proof metal material demand, the corrosion-resistant standard of metal material is constantly carried
Height, hot-dip aluminizing and hot dip galvanizing coating technique can not gradually meet the service demand of material.A155Zn43.5Si1.5 coating is although comprehensive
The advantages of having closed hot-dip aluminizing and galvanizing, but cadmia is still faced in actual production and produces the problem of serious.Cadmia can be led after being formed
Cause the mobility of zinc liquid to be deteriorated, make coating thickening, reduce the utilization rate of zinc, influence quality of coating, while considerably increase cost.
The generation of cadmia is major issue urgently to be resolved hurrily in or immersion, in the prior art, in order to effectively control
The generation of cadmia, using zinc pot material, rationally control furnace atmosphere, temperature of control zinc liquid etc. is improved, these methods can not
Fundamentally cadmia is effectively controlled, and influence factor is more, controllability is poor.
The content of the invention
The problem of existing for prior art, the invention provides a kind of Hot-dip aluminum-silicon zinc yttrium magnesium of effectively control cadmia
Plating solution, the plating solution can effectively suppress the reaction of iron-based body and solution, the effective generation for controlling cadmia.
Present invention also offers a kind of or immersion carried out using above-mentioned plating solution.
The used to achieve these goals technical scheme of the present invention is：
The invention provides a kind of Hot-dip aluminum-silicon zinc yttrium magnesium plating solution, the solution composition skeleton symbol is AlaZnbSicYdMge；
The mass ratio of each component is：53wt.% ＜ a ＜ 56wt.%, 43wt.% ＜ b ＜ 44wt.%, 1.3wt.% ＜ c ＜
1.6w.t%, d=0.2wt.%, 0.2wt.% ＜ e ＜ 0.8wt.%.
Yttrium used in the present invention is the alloy pig that 20% yttrium adds 80% aluminium；The magnesium is the alloy pig that 10% magnesium adds 90% aluminium；
The aluminium, zinc and silicon are A155Zn43.5Si1.5 alloy pigs.
Present invention also offers a kind of or immersion using above-mentioned hot-dip plating solution, comprise the following steps：
（1）The aluminium zinc silicon ingot casting and aluminium yittrium alloy ingot and almag ingot that have configured in proportion are added into smelting furnace, fusing is stand-by；
（2）First steel plate be cleaned by ultrasonic and remove surface impurity；
（3）The NaOH solution for being 70-80 DEG C with temperature cleans steel plate, removes surface oil stain；Steel plate is cleaned with water, it is residual to remove surface
Slag and alkali lye；
（4）Steel plate is cleaned with HCl solution, until surface of steel plate is without iron rust；Steel plate is cleaned with water, removes surface residual debris and acid solution；
（5）The quickening liquid that steel plate after cleaning is 70-80 DEG C with temperature is helped into plating steel plate 3 minutes, the steel plate after plating will be helped to dry；
（6）Steel plate after drying is immersed into immersion plating in smelting furnace, the steel plate quenching after hot-dip is cooled down.
Further, step（1）, the fusion process is：Furnace temperature is increased to 720 DEG C and is incubated two hours, is then cooled
Two hours are incubated to 600 DEG C.
Further, the mass concentration of the NaOH solution is 15%；The mass concentration of the HCl solution is 15%.
Quickening liquid used in the present invention is every liter of NH containing 200g4Cl, 150g ZnCl2, 100g SnCl2Water
Solution.
Further, the temperature of the drying is 200 DEG C, time 3min.
The beneficial effects of the invention are as follows：
（1）The present invention can improve zinc liquid mobility by reasonably compounding, and effectively reduce cadmia content, and cadmia content can be with
Reduce by 65% or so.
（2）The present invention passes through the control to cadmia content, it is possible to reduce the infringement to equipment, reduces maintenance of equipment cost.
Extend liquation service life, increase the sustainability of production, increase production efficiency, increase economic efficiency.
（3）The present invention can effectively suppress the reaction between iron aluminium, improve plate surface quality, strengthen plasticity, improve production
Quality.
Brief description of the drawings
Fig. 1 is the hot-dip aluminizing zinc silicon steel plate schematic illustration of tissue of embodiment 1.
Fig. 2 is the hot-dip aluminizing zinc silicon steel plate schematic illustration of tissue of embodiment 2.
Fig. 3 is the hot-dip aluminizing zinc silicon steel plate schematic illustration of tissue of embodiment 3.
Embodiment
Technical scheme provided by the present invention is explained further with specific embodiment below.
Embodiment 1
Hot-dip solution composition is Al54.78Zn43.33Si1.49Y0.2Mg0.2, gross mass 1890.1g；
Yttrium used is the alloy pig that 20% yttrium adds 80% aluminium, and magnesium used is the alloy pig that 10% magnesium adds 90% aluminium, and aluminium zinc silicon used is
A155Zn43.5Si1.5 alloy pigs.Because aluminium content is dominant in liquation, and aluminium yittrium alloy ingot quality is smaller, therefore during configuration,
Can be by the aluminium in alloy pig as A155Zn43.5Si1.5 processing；
Or immersion is specific as follows：
（1）Ingot is placed in crucible type resistance furnace, ingot is placed in crucible type resistance furnace, furnace temperature is increased to 700
DEG C insulation two hours, cool the temperature to 600 DEG C insulation two hours it is stand-by；
（2）Ultrasonic wave cleans：5cm × the 5cm to have polished × 0.1cm steel plates are put into ultrasonic washing instrument, clean ten minutes, just
Step removes the greasy dirt and dust of surface of steel plate；
（3）Alkali cleaning --- 15%NaOH solution is prepared, 70-80 DEG C is heated to, steel plate is put into NaOH solution and cleans 3min；Alkali
The purpose washed is mainly to remove the greasy dirt and impurity of surface of steel plate；
（4）Pickling --- 15%HCL solution is prepared, steel plate is put into 1min in solution；Steel surface after alkali cleaning also has iron rust
Deng the remote requirement for not reaching immersion plating, needed after washing with pickling to remove the impurity such as the iron oxide on surface；Rinsed with running water
20s, to remove the iron ion formed after the remaining alkali of metal surface residual, spent acid, residue and pickling；
（5）Help plating --- by steel plate quickening liquid（Every liter of NH containing 200g4Cl, 150g ZnCl2, 100g SnCl2Water
Solution）Help plating three minutes；The temperature of quickening liquid is 70-80 degrees Celsius；The steel plate after plating will be helped to be put into drying baker, 200 DEG C of temperature
Degree is lower to dry；It is quick-fried that zinc occurs the purpose is to remove the moisture on surface, when preventing hot-dip, causes zinc liquid to splash；
（6）Hot-dip：Steel plate is sent into hot-dip 2min in crucible with pliers, then takes out and carries out quenching cooling.
The sample of preparation is blown through the corase grind-fine grinding-polishing-washing-nitric acid of alcohol washes -4% alcohol corrosion-alcohol washes -
It is dry, with metallographic microscope preliminary observation, tissue topography's analysis then is carried out with ESEM, concrete outcome is as shown in figure 1, figure
In, it is followed successively by Fe matrixes, Fe to the tissue on the outside of coating since the leftmost side2Al5、FeAl3, rich aluminium phase, zinc-rich phase.
The loss quality of weight-loss method measurement sheet metal is carried out to sample, concrete outcome is shown in Table 1.
Table 1
Embodiment 2
Hot-dip solution composition is Al54.67Zn43.24Si1.49Y0.2Mg0.4, gross mass 1638.5g.
Or immersion is the same as embodiment 1.
The sample of preparation is blown through the corase grind-fine grinding-polishing-washing-nitric acid of alcohol washes -4% alcohol corrosion-alcohol washes -
It is dry, with metallographic microscope preliminary observation, then carry out tissue topography's analysis with ESEM.As a result it is as shown in Figure 2.
The loss quality of weight-loss method measurement sheet metal is carried out to sample, concrete outcome is shown in Table 2.
Table 2
Embodiment 3
Hot-dip solution composition is Al54.45Zn43.06Si1.49Y0.2Mg0.8, gross mass 1711.6g.
Or immersion is the same as embodiment 1.
The sample of preparation is blown through the corase grind-fine grinding-polishing-washing-nitric acid of alcohol washes -4% alcohol corrosion-alcohol washes -
It is dry, with metallographic microscope preliminary observation, then carry out tissue topography's analysis with ESEM.As a result it is as shown in Figure 3.
The loss quality of weight-loss method measurement sheet metal is carried out to sample, concrete outcome is shown in Table 3.
Table 3
Comparative example 1
Hot-dip solution composition is Al15Zn60Si10Y10Mg5, gross mass 2025g；
Or immersion is the same as embodiment 1.
The loss quality of weight-loss method measurement sheet metal is carried out to sample, concrete outcome is shown in Table 4.
Table 4
Comparative example 2
Hot-dip solution composition is Al54.78Zn43.33Si1.49Y0.2；
Or immersion is the same as embodiment 1.
The loss quality of weight-loss method measurement sheet metal is carried out to sample, concrete outcome is shown in Table 5.
Table 5
Comparative example 3
Hot-dip solution composition is Al54.78Zn43.33Si1.49Mg0.2；
Or immersion is the same as embodiment 1.
The loss quality of weight-loss method measurement sheet metal is carried out to sample, concrete outcome is shown in Table 6.
Table 6
Claims (7)
1. a kind of Hot-dip aluminum-silicon zinc yttrium magnesium plating solution, it is characterised in that the solution composition skeleton symbol is AlaZnbSicYdMge；
The mass ratio of each component is：53wt.% ＜ a ＜ 56wt.%, 43wt.% ＜ b ＜ 44wt.%, 1.3wt.% ＜ c ＜
1.6w.t%, d=0.2wt.%, 0.2wt.% ＜ e ＜ 0.8wt.%.
2. Hot-dip aluminum-silicon zinc yttrium magnesium plating solution according to claim 1, it is characterised in that the yttrium is that 20% yttrium adds 80% aluminium
Alloy pig；The magnesium is the alloy pig that 10% magnesium adds 90% aluminium；The aluminium, zinc and silicon are A155Zn43.5Si1.5 alloy pigs.
3. a kind of or immersion using Hot-dip aluminum-silicon zinc yttrium magnesium plating solution as claimed in claim 1 or 2, its feature exists
In comprising the following steps：
（1）The aluminium zinc silicon ingot casting and aluminium yittrium alloy ingot and almag ingot that have configured in proportion are added into smelting furnace, fusing is stand-by；
（2）First steel plate be cleaned by ultrasonic and remove surface impurity；
（3）The NaOH solution for being 70-80 DEG C with temperature cleans steel plate, removes surface oil stain；Steel plate is cleaned with water, it is residual to remove surface
Slag and alkali lye；
（4）Steel plate is cleaned with HCl solution, until surface of steel plate is without iron rust；Steel plate is cleaned with water, removes surface residual debris and acid solution；
（5）The quickening liquid that steel plate after cleaning is 70-80 DEG C with temperature is helped into plating steel plate 3 minutes, the steel plate after plating will be helped to dry；
（6）Steel plate after drying is immersed into immersion plating in smelting furnace, the steel plate quenching after hot-dip is cooled down.
4. or immersion according to claim 3, it is characterised in that step（1）, the fusion process is：By furnace temperature
It is increased to 720 DEG C and is incubated two hours, then cools to 600 DEG C and be incubated two hours.
5. or immersion according to claim 3, it is characterised in that the mass concentration of the NaOH solution is 15%；Institute
The mass concentration for stating HCl solution is 15%.
6. according to the or immersion described in claim any one of 3-5, it is characterised in that the quickening liquid is every liter and contained
200g NH4Cl, 150g ZnCl2, 100g SnCl2The aqueous solution.
7. or immersion according to claim 3, it is characterised in that the temperature of the drying is 200 DEG C, and the time is
3min。
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108441800A (en) * | 2018-06-13 | 2018-08-24 | 无锡银荣板业有限公司 | A kind of technique of continuous hot dip aluminum-silicon plated steel plate |
| CN113528940A (en) * | 2021-06-16 | 2021-10-22 | 首钢集团有限公司 | Aluminum-silicon alloy plating layer hot forming steel and preparation method thereof |
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| US20100119869A1 (en) * | 2008-11-13 | 2010-05-13 | Changshu Huaye Steel Strip Co., Ltd | Hot-dipped zn-al-si-mg-re steel plate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108441800A (en) * | 2018-06-13 | 2018-08-24 | 无锡银荣板业有限公司 | A kind of technique of continuous hot dip aluminum-silicon plated steel plate |
| CN113528940A (en) * | 2021-06-16 | 2021-10-22 | 首钢集团有限公司 | Aluminum-silicon alloy plating layer hot forming steel and preparation method thereof |
| CN113528940B (en) * | 2021-06-16 | 2022-06-21 | 首钢集团有限公司 | Aluminum-silicon alloy plating layer hot forming steel and preparation method thereof |
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Application publication date: 20180116 |