CN108441694A - A kind of resistance to volatilization hot-dip aluminum zinc Ca-Al-Cr allumens of corrugationless - Google Patents
A kind of resistance to volatilization hot-dip aluminum zinc Ca-Al-Cr allumens of corrugationless Download PDFInfo
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- CN108441694A CN108441694A CN201810511991.8A CN201810511991A CN108441694A CN 108441694 A CN108441694 A CN 108441694A CN 201810511991 A CN201810511991 A CN 201810511991A CN 108441694 A CN108441694 A CN 108441694A
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- hot
- zinc
- dipping
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- galvanizing
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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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C18/00—Alloys based on zinc
- C22C18/04—Alloys based on zinc with aluminium as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Coating With Molten Metal (AREA)
Abstract
The invention discloses a kind of resistance to volatilization hot-dip aluminum zinc Ca Al Cr allumens of corrugationless and its processing technologys.According to weight percent, the ingredient of the alloy is：Ca:0.2‑0.4wt.%,Na:0.1‑0.2wt.%,Sc:0.2‑0.3wt.%,Ni:1.2‑1.6wt.%,Al:30.0‑36.0wt.%,Cr:0.4 0.8wt.%, surplus are zinc.The material can be used for the galvanizing by dipping of steel plate at 320 340 degree, and have better corrosion resistance compared to traditional pure zinc hot-dip.It can be used for the galvanizing by dipping protection of offshore platform steel, and expand and will be used widely in more galvanizings by dipping with more engineer application fields.
Description
Technical field
The present invention relates to technical field of alloy, specifically, being related to a kind of kirsite.
Background technology
The current potential of zinc is more negative than iron, and when electrochemical corrosion occurs, zinc can be used as sacrificial anode and implement cathodic protection to steel.
Galvanizing can significantly improve steel weather-resistant performance, and zinc coat can provide the protection of physical barriers to steel, by steel
Keep apart with corrosive medium.Galvanizing it is simple for process, it is steel is continuous or immerse the zinc or kirsite of melting in batch
In bath, you can obtain hot galvanized layer.Galvanizing by dipping has the characteristics that following：(1) thickness coating, corrosion resistance and good can get.(2) plate
Layer adhesion is good, and molding appropriate, the working processes such as welding and application can be carried out after plating.
In recent years, people attempt batch galvanizing being used in building structure and reinforcing bar, bridge, communication iron tower, shipbuilding, mine
Mountain machinery etc., and good effect is achieved, the application prospect of batch galvanizing is widened, while also promoting batch hot dip
Zinc technology technology is more perfect.Hot-dip galvanizing technique is because of its cheap plating cost, excellent protection feature and beautiful appearance
And receive the favor of people, be widely used in automobile, building, household electrical appliances, chemical industry, machinery, oil, metallurgy, light industry, traffic, electric power,
The fields such as aviation and ocean engineering.
21st century, steel products will be human society most important irreplaceable structural material and yield most
Greatly, the most wide functional material of covering surface.Metallurgical industry structural adjustment paces in the world's are accelerated, the center of gravity of production will from developed country to
Developing country shifts.China is in process of industrialization at present, lasting, the fast-developing and industry of each department of national economy
More stringent requirements are proposed for kind, quality of the upgrading to steel products.The structural adjustment of China's metallurgical industry is accelerated, will be had
Significance.
There is also a certain distance compared with world standard for the development of China's thermal dip plating of steel zinc.Existing galvanization production line
There are backward in technique, zinc consumption is high, product yield is low, poor product quality, production cost are high, energy charge is big, environmental protection measure for majority
Ineffective, the shortcomings of often resulting in Heavy environmental pollution, such production line is difficult to meet the needs of Chinese national economy rapid development.Seek more
Good hot-dip galvanized material is one of the critical issue in current hot-dip galvanized steel sheet application study and industrialization.
With the development of industry, more requirements, such as higher corrosion resisting property are proposed to hot dipping plated product.Therefore,
Hot dipping of zinc-aluminum alloy comes into being, and becomes one of the research hotspot of hot dipping coating technology.However, at present galvanizing by dipping aluminum material and
Some problems are still had in production technology, the formed product as caused by coating is thicker is bad, slag on continuous zinc coating production line
Production cost increase etc. caused by dregs is more.Alloying element is added into molten bath although having used, by changing metal in coating
Between compound type and formation sequence improve the type of quality of coating or dregs.But up to the present, hot-dip aluminum zinc
The control of Aluminum in Alloy concentration is bad, can not only improve product quality, can cause coating table instead and particle occur, or even leakage
The defects of plating, especially in batch hot dip production.
Industry great in such galvanizing by dipping production process can be solved by advanced Alloying Design method to ask
Topic.Alloying Design method is to select and add suitable alloying element in hot dip galvanized zinc alloy to influence the alloy in hot dipping
Zinc-plated and subsequent use process.Thus, the type and content of various elements how are balanced in kirsite, are current hot-dips
Zinc alloy field urgent problem to be solved.Such alloy industrialization can obtain great economic and social benefit.Soon
Future, as more engineer application fields are expanded, such novel alloy will extensively be answered in more galvanizings by dipping
With.
Invention content
The purpose of the present invention is to overcome the deficiency in the prior art, and providing one kind can make under 320-340 degree atmospheric conditions
The resistance to volatilization hot-dip aluminum zinc Ca-Al-Cr allumens of corrugationless.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of resistance to volatilization hot-dip aluminum zinc Ca-Al-Cr allumens of corrugationless.By weight percentage, the group of alloy becomes：
Ca:0.2-0.4wt.%,Na:0.1-0.2wt.%,Sc:0.2-0.3wt.%,Ni:1.2-1.6wt.%,Al:30.0-36.0wt.%,
Cr:0.4-0.8wt.%, surplus are zinc.The weight that the kirsite loses in fusion process because of the reasons such as volatilization and formation clinker
Amount is in 1.0-2.0wt.% or so.
The preparation method of the above-mentioned resistance to volatilization hot-dip aluminum zinc Ca-Al-Cr allumens of corrugationless, includes the following steps：It will
As above the raw material matched is added in the electric induction furnace of argon gas protection, and uses silicon carbide crucible；As above the raw material matched is added
Enter into the electric induction furnace of atmosphere protection, and uses silicon carbide crucible；Sensing heating forms alloy solution to 500-600 degree, and
It is sufficiently stirred 10 minutes or so using electromagnetic agitation effect；Alloy liquid is stood in the heat preservation of 500-600 degree and is cast after ten minutes
Semi-continuous casting is carried out into required billet in heat top same level equipment, and it is 5-8m/min that ingot casting, which moves down speed,.The ingot casting
The thin plate galvanizing by dipping that galvanizing by dipping raw material can be regarded for subsequent handling is handled, and the operating temperature of wherein galvanizing by dipping is
320-340 degree, hot dipping time are 10-15 seconds.
Compared with prior art, the present invention has the advantages that：
（1）The new zinc alloy has extremely excellent resistance to volatilization and oxidation resistent susceptibility.In galvanizing by dipping industrial production, the conjunction
For gold when being exposed in air, alloy surface can generate one layer of oxide and nitride film.These membrane structures are fine and close, spreadability
By force, excellent protection can be provided, the further oxidation and evaporation of kirsite melt are prevented.Generally speaking, using this patent
Alloy, zinc can maintain 3-5wt.% or so for a long time due to the non-normal consumption for aoxidizing and volatilizing.
（2）The material is 320-340 degree for the temperature of the galvanizing by dipping of thin plate, and the hot dipping time is 10-15 seconds.It compares
For, traditional galvanizing by dipping temperature is 360-450 degree, and the hot dipping time is 30-60 seconds.Due to reducing hot dipping temperature and hot dipping
Time.From energy saving and for reducing cost, the effect of this patent is apparent.Under marine environment, the corrosion rate of the material
It is 1.0 × 10-5Mm/.Thus under marine climate, which can use 30 years or more safely without significantly corroding now
As occurring.In comparison, eroded elements concentration gradually increases ocean ring to the zinc coat of common hot-dip galvanizing alloy in the environment
General working life is 5-8 or so under border.The anti-corrosion of hot dipping of zinc-aluminum alloy makes coating both have electro-chemical protection,
Insulation blocking effect with organic coating again, coating integrated protection performance is good, adaptable, it will be apparent that improve corrosive environment
Under anti-corrosion capability.
（3）In hot dip galvanizing process, since the vibration of strip and uneven coating are even in zinc slot, often it will produce
Wrinkle.Since these wrinkle can influence the coating on the zinc layers surface of thin plate, be harmful to the surface property of paint film, it is used for
The thin plate of manufacture car panel must be prevented from generating wrinkle.For that purpose it is necessary to using anti-wrinkle production technology, in continuous hot-dipping galvanizing
Determine that zinc system is squeezed in control on production line, gap, crowded zinc pressure between such as air knife and strip, the height for plating the above air knife of groove face
Deng.But these harsh requirements not only reduce production efficiency, and product because the appearance of surface wrinkles also result in compared with
Low product qualification rate.The alloy is for conventional hot-dip zinc production line and using traditional hot-dip galvanizing technique requirement, gained
Product is not in common wrinkle to the vibrations of steel plate and insensitive.Since these wrinkle can influence the zinc layers surface of thin plate
Coating, be harmful to the surface property of paint film.Thus, use the novel alloy of this patent that can dissolve qualification with industry completely
Thin plate hot dip galvanizing plate.
（4）The alloy has that simple for process, easy to operate, at low cost, coating uniform is fine and close, strong adhesive force, good corrosion resistance
The advantages that.It is contemplated that the industrialization of such alloy can obtain great economic and social benefit.In the near future, with
It more engineer application fields to expand, such novel alloy will be used widely in more galvanizings by dipping.
Specific implementation mode
Embodiment 1
One kind using the resistance to volatilization hot-dip aluminum zinc Ca-Al-Cr allumens of corrugationless in 320-340 degree.By weight percentage,
The chemical composition of alloy is：Ca:0.2wt.%,Na:0.1wt.%,Sc:0.2wt.%,Ni:1.2wt.%,Al:30.0wt.%,Cr:
0.4wt.%, surplus are zinc.The preparation method of alloy：As above the raw material matched is added in the electric induction furnace of argon gas protection, and
Using silicon carbide crucible；As above the raw material matched is added in the electric induction furnace of atmosphere protection, and uses silicon carbide crucible；Sense
It should be heated to 500-600 degree and form alloy solution, and be sufficiently stirred 10 minutes or so using electromagnetic agitation effect；By alloy liquid
It stands to be cast to after ten minutes in the same level equipment of heat top in the heat preservation of 500-600 degree and carries out semi-continuous casting into required circle
Ingot, it is 5-8m/min that ingot casting, which moves down speed,.The ingot casting can regard the thin plate hot-dip that galvanizing by dipping raw material is used for subsequent handling
Zinc processing, the wherein operating temperature of galvanizing by dipping are 320-340 degree, and the hot dipping time is 10-15 seconds.
Using the alloy of this patent, zinc can maintain 3- for a long time due to the non-normal consumption for aoxidizing and volatilizing
5wt.% or so.The material is 320-340 degree for the temperature of the galvanizing by dipping of thin plate, and the hot dipping time is 10-15 seconds.It compares
For, traditional galvanizing by dipping temperature is 360-450 degree, and the hot dipping time is 30-60 seconds.Due to reducing hot dipping temperature and hot dipping
Time.From energy saving and for reducing cost, the effect of this patent is apparent.Under marine environment, the corrosion rate of the material
It is 1.0 × 10-5Mm/.Thus under marine climate, which can use 30 years or more safely without significantly corroding now
As occurring.In comparison, eroded elements concentration gradually increases ocean ring to the zinc coat of common hot-dip galvanizing alloy in the environment
General working life is 5-8 or so under border.The anti-corrosion of hot dipping of zinc-aluminum alloy makes coating both have electro-chemical protection,
Insulation blocking effect with organic coating again, coating integrated protection performance is good, adaptable, it will be apparent that improve corrosive environment
Under anti-corrosion capability.The alloy is for conventional hot-dip zinc production line and using traditional hot-dip galvanizing technique requirement, gained
Product is not in common wrinkle to the vibrations of steel plate and insensitive.Since these wrinkle can influence the zinc layers surface of thin plate
Coating, be harmful to the surface property of paint film.Thus, use the novel alloy of this patent that can dissolve qualification with industry completely
Thin plate hot dip galvanizing plate.
Embodiment 2
One kind using the resistance to volatilization hot-dip aluminum zinc Ca-Al-Cr allumens of corrugationless in 320-340 degree.By weight percentage,
The chemical composition of alloy is：Ca: 0.4wt.%,Na: 0.2wt.%,Sc:0.3wt.%,Ni:1.6wt.%,Al:36.0wt.%,
Cr:0.8wt.%, surplus are zinc.The preparation method of alloy：As above the raw material matched is added to the electric induction furnace of argon gas protection
It is interior, and use silicon carbide crucible；As above the raw material matched is added in the electric induction furnace of atmosphere protection, and uses silicon carbide earthenware
Crucible；Sensing heating forms alloy solution to 500-600 degree, and is sufficiently stirred 10 minutes or so using electromagnetic agitation effect；It will close
Golden liquid stands to be cast to after ten minutes in the same level equipment of heat top in the heat preservation of 500-600 degree carries out semi-continuous casting at required
Billet, ingot casting move down speed be 5-8m/min.The ingot casting can regard thin plate heat of the galvanizing by dipping raw material for subsequent handling
Zinc immersion processing, the wherein operating temperature of galvanizing by dipping are 320-340 degree, and the hot dipping time is 10-15 seconds.
Using the alloy of this patent, zinc can maintain 3- for a long time due to the non-normal consumption for aoxidizing and volatilizing
5wt.% or so.The material is 320-340 degree for the temperature of the galvanizing by dipping of thin plate, and the hot dipping time is 10-15 seconds.It compares
For, traditional galvanizing by dipping temperature is 360-450 degree, and the hot dipping time is 30-60 seconds.Due to reducing hot dipping temperature and hot dipping
Time.From energy saving and for reducing cost, the effect of this patent is apparent.Under marine environment, the corrosion rate of the material
It is 1.0 × 10-5Mm/.Thus under marine climate, which can use 30 years or more safely without significantly corroding now
As occurring.In comparison, eroded elements concentration gradually increases ocean ring to the zinc coat of common hot-dip galvanizing alloy in the environment
General working life is 5-8 or so under border.The anti-corrosion of hot dipping of zinc-aluminum alloy makes coating both have electro-chemical protection,
Insulation blocking effect with organic coating again, coating integrated protection performance is good, adaptable, it will be apparent that improve corrosive environment
Under anti-corrosion capability.The alloy is for conventional hot-dip zinc production line and using traditional hot-dip galvanizing technique requirement, gained
Product is not in common wrinkle to the vibrations of steel plate and insensitive.Since these wrinkle can influence the zinc layers surface of thin plate
Coating, be harmful to the surface property of paint film.Thus, use the novel alloy of this patent that can dissolve qualification with industry completely
Thin plate hot dip galvanizing plate.
Embodiment 3
One kind using the resistance to volatilization hot-dip aluminum zinc Ca-Al-Cr allumens of corrugationless in 320-340 degree.By weight percentage,
The chemical composition of alloy is：Ca:0.3wt.%,Na:0.2wt.%,Sc:0.2wt.%,Ni:1.5wt.%,Al:34.0wt.%,Cr:
0.6wt.%, surplus are zinc.The preparation method of alloy：As above the raw material matched is added in the electric induction furnace of argon gas protection, and
Using silicon carbide crucible；As above the raw material matched is added in the electric induction furnace of atmosphere protection, and uses silicon carbide crucible；Sense
It should be heated to 500-600 degree and form alloy solution, and be sufficiently stirred 10 minutes or so using electromagnetic agitation effect；By alloy liquid
It stands to be cast to after ten minutes in the same level equipment of heat top in the heat preservation of 500-600 degree and carries out semi-continuous casting into required circle
Ingot, it is 5-8m/min that ingot casting, which moves down speed,.The ingot casting can regard the thin plate hot-dip that galvanizing by dipping raw material is used for subsequent handling
Zinc processing, the wherein operating temperature of galvanizing by dipping are 320-340 degree, and the hot dipping time is 10-15 seconds.
Using the alloy of this patent, zinc can maintain 3- for a long time due to the non-normal consumption for aoxidizing and volatilizing
5wt.% or so.The material is 320-340 degree for the temperature of the galvanizing by dipping of thin plate, and the hot dipping time is 10-15 seconds.It compares
For, traditional galvanizing by dipping temperature is 360-450 degree, and the hot dipping time is 30-60 seconds.Due to reducing hot dipping temperature and hot dipping
Time.From energy saving and for reducing cost, the effect of this patent is apparent.Under marine environment, the corrosion rate of the material
It is 1.0 × 10-5Mm/.Thus under marine climate, which can use 30 years or more safely without significantly corroding now
As occurring.In comparison, eroded elements concentration gradually increases ocean ring to the zinc coat of common hot-dip galvanizing alloy in the environment
General working life is 5-8 or so under border.The anti-corrosion of hot dipping of zinc-aluminum alloy makes coating both have electro-chemical protection,
Insulation blocking effect with organic coating again, coating integrated protection performance is good, adaptable, it will be apparent that improve corrosive environment
Under anti-corrosion capability.The alloy is for conventional hot-dip zinc production line and using traditional hot-dip galvanizing technique requirement, gained
Product is not in common wrinkle to the vibrations of steel plate and insensitive.Since these wrinkle can influence the zinc layers surface of thin plate
Coating, be harmful to the surface property of paint film.Thus, use the novel alloy of this patent that can dissolve qualification with industry completely
Thin plate hot dip galvanizing plate.
Claims (3)
1. a kind of resistance to volatilization hot-dip aluminum zinc Ca-Al-Cr allumens of corrugationless；According to weight percent, the ingredient of the alloy
For：Ca:0.2-0.4wt.%,Na:0.1-0.2wt.%,Sc:0.2-0.3wt.%,Ni:1.2-1.6wt.%,Al:30.0-
36.0wt.%,Cr:0.4-0.8wt.%, surplus are zinc.
2. the resistance to volatilization hot-dip aluminum zinc Ca-Al-Cr allumens of corrugationless according to claim 1, it is characterised in that including
Following steps：As above the raw material matched is added in the electric induction furnace of atmosphere protection, and uses silicon carbide crucible；Sensing heating
Alloy solution is formed to 500-600 degree, and is sufficiently stirred 10 minutes or so using electromagnetic agitation effect；By alloy liquid in 500-
600 degree of heat preservations, which stand to be cast to after ten minutes in the same level equipment of heat top, carries out semi-continuous casting into required billet, ingot casting
It is 5-8m/min to move down speed.
3. the resistance to volatilization hot-dip aluminum zinc Ca-Al-Cr allumens of corrugationless according to claim 1, it is characterised in that include
Following procedure of processing：The ingot casting can regard steel plate galvanizing by dipping of the galvanizing by dipping raw material for subsequent handling and handle, wherein hot
The operating temperature of zinc immersion is 320-340 degree, and the hot dipping time is 10-15 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810511991.8A CN108441694A (en) | 2018-05-25 | 2018-05-25 | A kind of resistance to volatilization hot-dip aluminum zinc Ca-Al-Cr allumens of corrugationless |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810511991.8A CN108441694A (en) | 2018-05-25 | 2018-05-25 | A kind of resistance to volatilization hot-dip aluminum zinc Ca-Al-Cr allumens of corrugationless |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108441694A true CN108441694A (en) | 2018-08-24 |
Family
ID=63205525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810511991.8A Withdrawn CN108441694A (en) | 2018-05-25 | 2018-05-25 | A kind of resistance to volatilization hot-dip aluminum zinc Ca-Al-Cr allumens of corrugationless |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108441694A (en) |
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2018
- 2018-05-25 CN CN201810511991.8A patent/CN108441694A/en not_active Withdrawn
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Application publication date: 20180824 |