CN104593649A - Aluminum-zinc-silicon-strontium-rare earth alloy ingot for continuous hot dipping and manufacturing method of aluminum-zinc-silicon-strontium-rare earth alloy ingot - Google Patents
Aluminum-zinc-silicon-strontium-rare earth alloy ingot for continuous hot dipping and manufacturing method of aluminum-zinc-silicon-strontium-rare earth alloy ingot Download PDFInfo
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- CN104593649A CN104593649A CN201510001881.3A CN201510001881A CN104593649A CN 104593649 A CN104593649 A CN 104593649A CN 201510001881 A CN201510001881 A CN 201510001881A CN 104593649 A CN104593649 A CN 104593649A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
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Abstract
The invention discloses an aluminum-zinc-silicon-strontium-rare earth alloy ingot for continuous hot dipping and a manufacturing method of the aluminum-zinc-silicon-strontium-rare earth alloy ingot and relates to the technical field of alloy materials. The aluminum-zinc-silicon-strontium-rare earth alloy ingot is prepared from the following components in percentage by weight: 55 percent of aluminum, 43.19 percent of zinc, 1.65 percent of silicon, 0.1 percent of strontium and 0.06 percent of rare earth. The prepared aluminum-zinc-silicon-strontium-rare earth alloy coating has the characteristics of good adhesion performance, reliability in durability, oxidative resistance and acid and alkaline resistance and is capable of prolonging the service life of a coating product, solving the problem in the prior art of eliminating impurities which are generated as a melt of an aluminum alloy with a high ratio flows and an alloy melt is in a state of a high-temperature zinc pot for a long time and enabling the application of the product to be stable.
Description
Technical field:
The present invention relates to technical field of alloy material, be specifically related to a kind of continuous hot-dipping aluminium zinc silicon strontium and rare earth alloy pig and manufacture method thereof.
Background technology:
Pot galvanize is the most general and effective method for anticorrosion treatment of one, conform wide, it has been widely used in the rotproofing of electric power, communication, national defence, communications and transportation and civil building etc. steel construction at present, and its main method comprises improvement Sendzimir method, Sha Lunfa and follow-up improved method, Galavalume and Calfan method.
Improvement Sendzimir method is a kind of processing method for continuous hot-dipping galvanizing, it in Sendzimir method separately independently oxidized still and reduction furnace coupled together by the passageway that sectional area is less, the whole annealing furnace comprising preheating oven, reduction furnace and cooling section like this forms an organic whole.The method has the advantages such as high-quality, high yield, low consumption, safety, is specially adapted to the component that geometrical shape is relatively regular.
Sha Lunfa and follow-up improved method in annealing furnace, spray hydrogen chloride gas to steel matrix and make to be with it to arrive recrystallization temperature, also referred to as gas acid wash.Adopt hydrogen chloride gas pickling not only can remove the oxide skin of steel substrate surface, and eliminate the grease of steel substrate surface simultaneously, because the corrosion of steel substrate surface oxidized gas forms pitted skin, the plating adhesion therefore obtained is good especially.Because hydrogen chloride gas is for production unit seriously corroded, therefore descendant is improved this method, is formed and carries out steel substrate surface processing of rust removing method with hydrochloric acid or dilution heat of sulfuric acid, substantially all have employed this method for the irregular component of geometrical shape.
The alloy layer of what Galavalume method adopted is 55%AL-43.5%Zn-1.5%Si, and the employing of Calfan method is the alloy layer containing aluminium 5%, rare earth 0.05%, originally single zinc coating improves by these two kinds of methods becomes zinc aluminum alloy coating, reduces zinc-plated temperature.Wherein Calfan method adopts rare-earth zinc aluminum alloy coating first, make coating surface quality be improved significantly.
Along with the development in epoch, the requirement of people to coating is more and more higher, and the anticorrosion time limit of the alloy material that existing pot galvanize uses is short, and anticorrosion time limit difference in different environments.Therefore, our company develops the alloy material of a kind of long service life, superior performance by comprehensive aforesaid method.
Summary of the invention:
Technical problem to be solved by this invention is the continuous hot-dipping aluminium zinc silicon strontium and rare earth alloy pig and the manufacture method thereof that provide a kind of stronger scale resistance, resistance to acids and bases and long service life.
Technical problem to be solved by this invention adopts following technical scheme to realize:
A kind of continuous hot-dipping aluminium zinc silicon strontium and rare earth alloy pig, is made up of the component of following weight percentage:
Aluminium 55%, zinc 43.19%, silicon 1.65%, strontium 0.1%, rare earth 0.06%.
Described aluminium is AOO aluminium, and zinc is 0# zinc, and silicon is that 553# leads to oxygen Pure Silicon Metal, and strontium is Preparation of Metallic Strontium, rare earth is lanthanum cerium synthesizing rare-earth, and wherein lanthanum content is 35%, cerium content is 65%.
A manufacture method for continuous hot-dipping aluminium zinc silicon strontium and rare earth alloy pig, comprises the following steps:
(1) according to aluminium 55%, zinc 43.19%, silicon 1.65%, strontium 0.1%, the ratio of rare earth 0.06% drops into silicon after first dropping into aluminium ingot in smelting furnace again, is melted to liquid state, obtains Si-Al melt state alloy at 800-1050 DEG C;
(2) zinc is dropped in the Si-Al melt state alloy prepared to step (1), drop into rare earth be again melted to semi liquid state at 800-900 DEG C after, continue, with temperature melting equally extremely liquid, then to add refining agent, abundant stirring, fish for scum silica frost, obtain aluminium zinc silicon liquid-state rare-earth alloy;
(3) drop into strontium in the aluminium zinc silicon liquid-state rare-earth alloy adopting the molten normal direction step (2) of leaching to prepare, cease fire after being warming up to 750-800 DEG C of melting 10min after gentle agitation, stir, obtain aluminium zinc silicon strontium and rare earth liquid alloy;
(4) aluminium zinc silicon strontium and rare earth liquid alloy step (3) prepared is cast in particular mold, fully should fish for scum silica frost and oxide side slag in casting cycle, obtains aluminium zinc silicon strontium and rare earth alloy pig after final cooling and shaping, the demoulding.
Described smelting furnace is filtering type burnt gas reverberatory furnace.
In the present invention, the effect of each element is as follows:
1. zinc obtains the desirable coating material that people verify for a long time;
2. aluminum ratio zinc has more good plasticity-, the adding of aluminium coated article can be made to efficiently avoid coating when die mould and bending to tear, so the combination of aluminium and zinc can extend the work-ing life of product greatly, and because of its light specific gravity, be only 1/3 of zinc, under same thickness coating conditions, can effectively save production cost and earth resources;
3. can suppress ferro-aluminum speed of response adding of silicon, prevent the content that alloy layer is blocked up, reduce iron in zinc pot, improve zinc pot and sinking roller dry slag phenomenon, extend service life of equipment;
4. strontium add the detrimental impurity such as sulphur, phosphorus can effectively removed in zinc liquid;
5. rare earth element add the viscosity that can reduce zinc liquid, refinement zinc liquid crystal grain, purification lattice, significantly strengthens the mobility of zinc liquid, reduces plating working temperature, makes coating even, fine and close, have good pleasing aesthetic appearance.
The invention has the beneficial effects as follows:
(1) be that aggressiveness fuses between the aluminium zinc silicon strontium and rare earth alloy layer used for hot dip galvanizing prepared by the present invention and steel matrix, coating becomes the part on steel surface, and therefore adhesion property is good, and persistence is reliable;
(2) the aluminium zinc silicon strontium and rare earth alloy used for hot dip galvanizing prepared by the present invention can form a kind of rich dendritic multilayer and cover coating in metallic surface, all have stronger scale resistance and resistance to acids and bases under various circumstances, effectively can extend the work-ing life of coated article;
(3) impurity that liquation flows and alloy molten solution generates for a long time under high temperature zinc pot state overcoming the aluminium alloy at high proportion that prior art exists removes problem, makes the application of product more stable.
Embodiment:
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, setting forth the present invention further.
A kind of continuous hot-dipping aluminium zinc silicon strontium and rare earth alloy pig, is made up of the component of following weight percentage:
Aluminium 55%, zinc 43.19%, silicon 1.65%, strontium 0.1%, rare earth 0.06%.
Wherein aluminium is AOO aluminium, and zinc is 0# zinc, and silicon is that 553# leads to oxygen Pure Silicon Metal, and strontium is Preparation of Metallic Strontium, rare earth is lanthanum cerium synthesizing rare-earth, and wherein lanthanum content is 35%, cerium content is 65%.
AOO represents the composition of aluminium ingot, and its index is: aluminium >=99.70, iron≤0.16%, silicon≤0.13%, copper≤0.01%, total impurities 0.3%.
The zinc ingot metal that 0# representative is greater than 99.995% containing zinc.
A manufacture method for continuous hot-dipping aluminium zinc silicon strontium and rare earth alloy pig, comprises the following steps:
(1) according to aluminium 55%, zinc 43.19%, silicon 1.65%, strontium 0.1%, the ratio of rare earth 0.06% drops into silicon after first dropping into aluminium ingot in smelting furnace again, is melted to liquid state, obtains Si-Al melt state alloy at 800-1050 DEG C;
(2) zinc is dropped in the Si-Al melt state alloy prepared to step (1), drop into rare earth be again melted to semi liquid state at 800-900 DEG C after, continue, with temperature melting equally extremely liquid, then to add refining agent, abundant stirring, fish for scum silica frost, obtain aluminium zinc silicon liquid-state rare-earth alloy;
(3) drop into strontium in the aluminium zinc silicon liquid-state rare-earth alloy adopting the molten normal direction step (2) of leaching to prepare, cease fire after being warming up to 750-800 DEG C of melting 10min after gentle agitation, stir, obtain aluminium zinc silicon strontium and rare earth liquid alloy;
(4) aluminium zinc silicon strontium and rare earth liquid alloy step (3) prepared is cast in particular mold, fully should fish for scum silica frost and oxide side slag in casting cycle, obtains aluminium zinc silicon strontium and rare earth alloy pig after final cooling and shaping, the demoulding.
Wherein, smelting furnace is filtering type burnt gas reverberatory furnace.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (4)
1. a continuous hot-dipping aluminium zinc silicon strontium and rare earth alloy pig, is characterized in that, be made up of the component of following weight percentage:
Aluminium 55%, zinc 43.19%, silicon 1.65%, strontium 0.1%, rare earth 0.06%.
2. a kind of continuous hot-dipping aluminium zinc silicon strontium and rare earth alloy pig according to claim 1, it is characterized in that: described aluminium is AOO aluminium, zinc is 0# zinc, and silicon is that 553# leads to oxygen Pure Silicon Metal, strontium is Preparation of Metallic Strontium, rare earth is lanthanum cerium synthesizing rare-earth, and wherein lanthanum content is 35%, cerium content is 65%.
3. a continuous hot-dipping manufacture method for aluminium zinc silicon strontium and rare earth alloy pig, is characterized in that, comprise the following steps:
(1) according to aluminium 55%, zinc 43.19%, silicon 1.65%, strontium 0.1%, the ratio of rare earth 0.06% drops into silicon after first dropping into aluminium ingot in smelting furnace again, is melted to liquid state, obtains Si-Al melt state alloy at 800-1050 DEG C;
(2) zinc is dropped in the Si-Al melt state alloy prepared to step (1), drop into rare earth be again melted to semi liquid state at 800-900 DEG C after, continue, with temperature melting equally extremely liquid, then to add refining agent, abundant stirring, fish for scum silica frost, obtain aluminium zinc silicon liquid-state rare-earth alloy;
(3) drop into strontium in the aluminium zinc silicon liquid-state rare-earth alloy adopting the molten normal direction step (2) of leaching to prepare, cease fire after being warming up to 750-800 DEG C of melting 10min after gentle agitation, stir, obtain aluminium zinc silicon strontium and rare earth liquid alloy;
(4) aluminium zinc silicon strontium and rare earth liquid alloy step (3) prepared is cast in particular mold, fully should fish for scum silica frost and oxide side slag in casting cycle, obtains aluminium zinc silicon strontium and rare earth alloy pig after final cooling and shaping, the demoulding.
4. the manufacture method of a kind of continuous hot-dipping aluminium zinc silicon strontium and rare earth alloy pig according to claim 3, is characterized in that: described smelting furnace is filtering type burnt gas reverberatory furnace.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510001881.3A CN104593649A (en) | 2015-01-04 | 2015-01-04 | Aluminum-zinc-silicon-strontium-rare earth alloy ingot for continuous hot dipping and manufacturing method of aluminum-zinc-silicon-strontium-rare earth alloy ingot |
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| CN201510001881.3A CN104593649A (en) | 2015-01-04 | 2015-01-04 | Aluminum-zinc-silicon-strontium-rare earth alloy ingot for continuous hot dipping and manufacturing method of aluminum-zinc-silicon-strontium-rare earth alloy ingot |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105779920A (en) * | 2016-04-07 | 2016-07-20 | 南京云开合金有限公司 | Zinc and strontium intermediate alloy for hot dipping and preparation method and application thereof |
| CN112281098A (en) * | 2020-09-28 | 2021-01-29 | 江苏华辉新材料科技有限公司 | Aluminum-zinc-silicon-lanthanum-cerium alloy ingot for continuous hot dip plating and manufacturing method thereof |
| CN112725670A (en) * | 2020-12-29 | 2021-04-30 | 苏州仓松金属制品有限公司 | Hot-dip galvanized aluminum alloy and production process thereof |
| CN115283666A (en) * | 2022-06-23 | 2022-11-04 | 江苏岐铭新材料科技发展有限公司 | Aluminum alloy powder spheroidizing process |
-
2015
- 2015-01-04 CN CN201510001881.3A patent/CN104593649A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105779920A (en) * | 2016-04-07 | 2016-07-20 | 南京云开合金有限公司 | Zinc and strontium intermediate alloy for hot dipping and preparation method and application thereof |
| CN112281098A (en) * | 2020-09-28 | 2021-01-29 | 江苏华辉新材料科技有限公司 | Aluminum-zinc-silicon-lanthanum-cerium alloy ingot for continuous hot dip plating and manufacturing method thereof |
| CN112725670A (en) * | 2020-12-29 | 2021-04-30 | 苏州仓松金属制品有限公司 | Hot-dip galvanized aluminum alloy and production process thereof |
| CN115283666A (en) * | 2022-06-23 | 2022-11-04 | 江苏岐铭新材料科技发展有限公司 | Aluminum alloy powder spheroidizing process |
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Application publication date: 20150506 |