CN101403059A - Zinc-aluminum binary intermediate alloy and uses in hot galvanizing alloy production - Google Patents
Zinc-aluminum binary intermediate alloy and uses in hot galvanizing alloy production Download PDFInfo
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- CN101403059A CN101403059A CNA200810143660XA CN200810143660A CN101403059A CN 101403059 A CN101403059 A CN 101403059A CN A200810143660X A CNA200810143660X A CN A200810143660XA CN 200810143660 A CN200810143660 A CN 200810143660A CN 101403059 A CN101403059 A CN 101403059A
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Abstract
The invention relates to a production process of a hot galvanizing alloy and a master alloy thereof, which has the technical proposal that, the components and the weight ratio of a zinc-aluminum binary master alloy are that 16-24 percent is aluminum and the rest is zinc. A method for producing the hot galvanizing alloy by the zinc-aluminum binary master alloy comprises the steps: mixing the zinc and the aluminum by the weight ratio, adding the mixture to a master alloy smelting furnace with the melting temperature of 560-680 DEG C to be molten, uniformly stirring, ingoting to a zinc-aluminum binary master alloy pig, adding the solid zinc required by hot galvanizing alloy production to a hot galvanizing alloy smelting furnace to be molten into zinc liquid, adding the zinc-aluminum binary master alloy required by the produced hot galvanizing alloy to the zinc liquid, and stirring for 20-40min at the melting temperature of 480-520 DEG C to prepare the hot galvanizing alloy. The invention which is applicable to the hot galvanizing alloy production by a cored induction furnace has the advantages of reducing the temperature of the melting alloy, shortening the melting and stirring time, prolonging the service life of the cored induction furnace and ensuring uniform hot galvanizing alloying components.
Description
Technical field
The present invention relates to the production technique of a kind of alloy and alloy.Be particularly related to a kind of production technique of hot-dip galvanized alloy.
Background technology
Hot-dip galvanized alloy generally needs to add other elements in zinc liquid, as add aluminium, rare earth etc., the method of the zinc-aluminium hot-dip galvanized alloy of producing is the method for zinc fusing back directly being added solid aluminium in zinc liquid at present, solid aluminium melts in zinc liquid, adopt this mode to carry out suitability for industrialized production, because the fusing point of aluminium is higher, light specific gravity, require smelting temperature than higher, generally all need to ask the melting furnace temperature more than 550 ℃.Melting type of heating commonly used is the induction furnace heating in the prior art, because the smelting temperature of core-type induction furnace is generally all at 500 ℃～520 ℃, and temperature too high work-ing life of then reducing stove.On the other hand, the mode of this direct interpolation solid aluminium, must after adding solid aluminium, carry out the stirring of long period to zinc liquid, aluminium element is evenly distributed in zinc alloy, and this must increase production cost in suitability for industrialized production, also is difficult to reach the ideal effect, very easily, influence the alloy pig quality because of mixing the inhomogeneous component segregation that produces.
In sum, in the suitability for industrialized production, directly add the core-type induction furnace production that the aluminium method is not suitable for economical and practical, Environmental Safety, is easy to automatization control, need further improve the production method of hot-dip galvanized alloy.
Summary of the invention
The object of the present invention is to provide a kind of Zinc-aluminum binary master alloy, it is adapted to adopt core-type induction furnace to produce hot-dip galvanized alloy, it has the temperature that reduces molten alloy, shorten the time of melting and stirring, prolong the life-span of core-type induction furnace, help the even advantage of hot-dip galvanized alloy composition.
Another object of the present invention is to a kind of production hot-dip galvanized alloy production method, it adopts the production of above-mentioned Zinc-aluminum binary master alloy.
Technical scheme of the present invention is: a kind of Zinc-aluminum binary master alloy, and it is used to produce hot-dip galvanized alloy, and its component and weight ratio are: aluminium 16%～24%, zinc are surplus.
A kind of method that adopts the Zinc-aluminum binary master alloy to produce hot-dip galvanized alloy: it is characterized in that:
Its production stage is:
Step 1: zinc and aluminium are prepared burden according to the weight ratio that contains aluminium 16～24%, join have 560 ℃～melt in the master alloy smelting furnace of 680 ℃ smelting temperature, stir, ingot casting becomes and contains aluminium 16%～24%, and zinc is the Zinc-aluminum binary master alloy of surplus;
Step 2: step 1 gained Zinc-aluminum binary alloy is used to produce hot-dip galvanized alloy, promptly at first will produce the required solid zinc of hot-dip galvanized alloy joins by melting in the smelting hot-dip galvanized alloy stove, become zinc liquid, in zinc liquid, add and press the required Zinc-aluminum binary alloy of being produced of hot-dip galvanized alloy proportioning, under the smelting temperature of 480 ℃～520 ℃ of temperature, stir 20～40min, make hot-dip galvanized alloy.
The master alloy smelting furnace can be any in coreless induction furnace or gas furnace, the oil oven.
The smelting hot-dip galvanized alloy stove can be a core-type induction furnace.
Solid zinc can be that zinc metal sheet is separated out in electrolysis.
Beneficial effect of the present invention is:
The Zn-Al binary alloy that utilization of the present invention contains aluminium about 20% only is characteristics about 430 ℃ in temperature of fusion, by making master alloy of the present invention earlier, utilizing this master alloy to produce the method for hot-dip galvanized alloy again, make the hot-dip galvanized alloy production not necessarily will be more than the fusing point of aluminium, promptly, greatly reduce requirement to melting equipment up to carrying out under 660 ℃ the smelting temperature.Make and channel induction furnace is used for hot-dip galvanized alloy production becomes possibility, the environmental protection and economy that itself had, the direct yield height, be convenient to large-scale production, temperature is convenient to control, the good product quality of producing, the advantage of save energy is brought into play, and has optimized the overall performance of hot-dip galvanized alloy production equipment greatly.
Saved the time of heating up and melting simultaneously, and under relatively low temperature, contain the Zn-Al binary alloy of aluminium 20% and the mutual solubility of zinc and strengthen, mix easily, and then can shorten churning time, for suitability for industrialized production, reduce smelting temperature and can save a large amount of energy, shortening heats up, churning time can be enhanced productivity, than prior art, the present invention produces the hot-dip galvanized alloy cost and can save about 5%, improves the quality of products.
Adopt first present method to produce hot-dip galvanized alloy the component segregation of Hot Dip Zinc Alloys is reduced, improve the quality product of hot-dip galvanized alloy.Overcome prior art and produced the aluminium element interpolation difficulty that exists in the hot-dip galvanized alloy process, demand smelting temperature height, churning time is long, and the alloy pig composition easily produces the deficiency of segregation.
Embodiment
Embodiment 1:
A kind of Zinc-aluminum binary master alloy that is used for the production pot galvanize, its component and weight ratio are: aluminium 16%, zinc are surplus.
A kind of method that adopts the Zinc-aluminum binary master alloy to produce hot-dip galvanized alloy:
Its production stage is:
Step 1: zinc and aluminium are prepared burden according to the weight ratio that contains aluminium 16%, join have 560 ℃～melt in the coreless induction furnace of 680 ℃ smelting temperature, stir, it is the 10kg/ piece that ingot casting becomes weight, contain aluminium 16%, zinc is the Zinc-aluminum binary master alloy of surplus;
Step 2: step 1 gained Zinc-aluminum binary alloy is used to produce hot-dip galvanized alloy, promptly at first will produce the required electrolysis of hot-dip galvanized alloy separates out zinc metal sheet and joins by melting in the core-type induction furnace, become zinc liquid, in zinc liquid, add and press the required Zinc-aluminum binary alloy of being produced of hot-dip galvanized alloy proportioning, under the smelting temperature of 480 ℃～520 ℃ of temperature, adopt the induction stirring mode to stir 20～40min, make hot-dip galvanized alloy.
Embodiment 2:
A kind of Zinc-aluminum binary master alloy that is used for the production pot galvanize, its component and weight ratio are: aluminium 24%, zinc are surplus.
A kind of method that adopts the Zinc-aluminum binary master alloy to produce hot-dip galvanized alloy:
Its production stage is:
Step 1: zinc and aluminium are prepared burden according to the weight ratio that contains aluminium 24%, join have 560 ℃～melt in the gas furnace of 680 ℃ smelting temperature, stir, it is the 20kg/ piece that ingot casting becomes into weight, contain aluminium 24%, zinc is the Zinc-aluminum binary master alloy of surplus;
Step 2: step 1 gained Zinc-aluminum binary alloy is used to produce hot-dip galvanized alloy, promptly at first will produce the required solid zinc of hot-dip galvanized alloy joins by melting in the core-type induction furnace, become zinc liquid, in zinc liquid, add and press the required Zinc-aluminum binary alloy of being produced of hot-dip galvanized alloy proportioning, under the smelting temperature of 480 ℃～520 ℃ of temperature, adopt the mechanical stirring mode to stir 20～40min, make hot-dip galvanized alloy.
Claims (6)
1, a kind of Zinc-aluminum binary master alloy that is used to produce hot-dip galvanized alloy, it is characterized in that: its component and weight ratio are: aluminium 16%～24%, zinc are surplus.
2, the Zinc-aluminum binary master alloy that is used to produce hot-dip galvanized alloy according to claim 1 is characterized in that: its ingot heavily is 10～20kg/ piece.
3, a kind of method that adopts the Zinc-aluminum binary master alloy to produce hot-dip galvanized alloy is characterized in that:
Its production stage is:
Step 1: zinc and aluminium are prepared burden according to the weight ratio that contains aluminium 16～24%, join have 560 ℃～melt in the master alloy smelting furnace of 680 ℃ smelting temperature, stir, ingot casting becomes and contains aluminium 16%～24%, and zinc is the Zinc-aluminum binary master alloy of surplus;
Step 2: step 1 gained Zinc-aluminum binary alloy is used to produce hot-dip galvanized alloy, promptly at first will produce the required solid zinc of hot-dip galvanized alloy joins by melting in the smelting hot-dip galvanized alloy stove, become zinc liquid, in zinc liquid, add and press the required Zinc-aluminum binary alloy of being produced of hot-dip galvanized alloy proportioning, under the smelting temperature of 480 ℃～520 ℃ of temperature, stir 20～40min, make hot-dip galvanized alloy.
4, employing Zinc-aluminum binary master alloy according to claim 3 is produced the method for hot-dip galvanized alloy, it is characterized in that: the master alloy smelting furnace is any in coreless induction furnace or gas furnace, the oil oven.
5, according to the method for claim 3 or 4 described employing Zinc-aluminum binary master alloys production hot-dip galvanized alloys, it is characterized in that: the smelting hot-dip galvanized alloy stove is a core-type induction furnace.
6, employing Zinc-aluminum binary master alloy according to claim 5 is produced the method for hot-dip galvanized alloy, and it is characterized in that: solid zinc is that zinc metal sheet is separated out in electrolysis.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA200810143660XA CN101403059A (en) | 2008-11-20 | 2008-11-20 | Zinc-aluminum binary intermediate alloy and uses in hot galvanizing alloy production |
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| CNA200810143660XA CN101403059A (en) | 2008-11-20 | 2008-11-20 | Zinc-aluminum binary intermediate alloy and uses in hot galvanizing alloy production |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102719706A (en) * | 2012-06-29 | 2012-10-10 | 济南大学 | Zn-Al-Cr master alloy and preparation method and application thereof |
| CN105838924A (en) * | 2016-04-07 | 2016-08-10 | 南京云开合金有限公司 | Zinc-calcium intermediate alloy for heat plating and preparation method and application thereof |
| CN106191487A (en) * | 2016-09-18 | 2016-12-07 | 桂林理工大学 | A kind of preparation method of high-strength casting Al Zn alloy |
| CN109338130A (en) * | 2018-12-11 | 2019-02-15 | 内蒙古兴安铜锌冶炼有限公司 | A kind of technique improving kirsite presentation quality |
-
2008
- 2008-11-20 CN CNA200810143660XA patent/CN101403059A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102719706A (en) * | 2012-06-29 | 2012-10-10 | 济南大学 | Zn-Al-Cr master alloy and preparation method and application thereof |
| CN102719706B (en) * | 2012-06-29 | 2014-04-02 | 济南大学 | Zn-Al-Cr master alloy and preparation method and application thereof |
| CN105838924A (en) * | 2016-04-07 | 2016-08-10 | 南京云开合金有限公司 | Zinc-calcium intermediate alloy for heat plating and preparation method and application thereof |
| CN105838924B (en) * | 2016-04-07 | 2018-04-06 | 南京云开合金有限公司 | A kind of hot dip zinc calcium intermediate alloy, its preparation method and its application |
| CN106191487A (en) * | 2016-09-18 | 2016-12-07 | 桂林理工大学 | A kind of preparation method of high-strength casting Al Zn alloy |
| CN109338130A (en) * | 2018-12-11 | 2019-02-15 | 内蒙古兴安铜锌冶炼有限公司 | A kind of technique improving kirsite presentation quality |
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