CN108456809A - New type low temperature environmental protection rub resistance aluminium alloy containing B and Ge used for hot dip galvanizing - Google Patents
New type low temperature environmental protection rub resistance aluminium alloy containing B and Ge used for hot dip galvanizing Download PDFInfo
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- CN108456809A CN108456809A CN201810617629.9A CN201810617629A CN108456809A CN 108456809 A CN108456809 A CN 108456809A CN 201810617629 A CN201810617629 A CN 201810617629A CN 108456809 A CN108456809 A CN 108456809A
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- hot
- low temperature
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- environmental protection
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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
-
- 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
- C23C2/12—Aluminium or alloys based thereon
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
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- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Coating With Molten Metal (AREA)
Abstract
The invention discloses new type low temperature environmental protection rub resistance aluminium alloys containing B and Ge used for hot dip galvanizing.According to weight percent, the ingredient of the alloy is:K:0.2‑0.4wt.%,V:0.5‑0.8wt.%,Ge:0.4‑0.5wt.%,Sr:1.0‑2.0wt.%,Sc:0.3‑0.5wt.%,Ce:0.1‑0.2wt.%,B:0.1 0.2wt.%, surplus are aluminium.The patent solves current China's hot-dip aluminizing alloy field present situation backward in technique, is broken through by technological innovation and optimization design and restricts China high-end field aludip production technology and equipment Development bottleneck.In the near future, which will be more widely applied in more fields.
Description
Technical field
The present invention relates to technical field of alloy, specifically, being related to a kind of aluminium alloy.
Background technology
The corrosion of steel refers to that a kind of caused by chemistry or electrochemical action break occurs when steel and surrounding medium contact
Bad phenomenon.Steel corrosion brings many inconvenience to production and living, causes huge economic loss.The whole world is every year because of steel
About 700,000,000,000 dollars of direct economic loss caused by corrosion is that the natural calamities such as earthquake, floods, typhoon cause damages summation
6 times.China loses caused by steel corrosion and accounts for 4% of gross national product or so, and the quantity that steel is scrapped by corrosion accounts for about
Steel works as the 25%-30% of annual output.
Galvanizing by dipping is to make fused zinc and iron-based precursor reactant and generate alloy-layer, to make both matrix and coating mutually tie
It closes.When zinc-coated wire surface is intact, the corrosion of zinc only occurs, since the product of zine corrosion has preferable protective effect to zinc,
So corrosion rate is very slow, the service life is 15-30 times of ungalvanized steel wire.Surface scratches in use or other reasons make
Coating is by local failure, and among steel wire is exposed to environment from wound, zinc forms in a humid environment with the iron in steel wire
Primary battery is less than the -0.036V of iron since the standard electrode potential of zinc only has -1.05V, thus zinc aoxidized as anode,
And iron is protected as cathode.The later product of zine corrosion is very fine and close, and reaction speed is very slow, that is to say, that overall corrosion resistant
Corrosion can increase substantially.The advantages that galvanizing has coating uniform, strong adhesive force, service life is long.Hot galvanized steel pipe matrix
Complicated physics, chemical reaction occurs with the plating solution of melting, forms corrosion resistant hard-packed zinc-iron alloy layer.Alloy-layer with
Pure zinc layer, steel pipe matrix combine together.Therefore its corrosion resistance is strong.
As the requirement to hot dip zinc product inherent quality, presentation quality, use quality is continuously improved, traditional hot-dip
Zinc cannot fully meet the environmental corrosion needs of existing getting worse.Presently, the hot dipping of anti-corrosion ability is had more
Alloy plating system is aluminium alloy.Aluminium coat not only has bright and clean surface and good corrosion resistance, while having good resistance to height
Temperature oxidation, wear-resisting and to light and heat reflecting properties.Aluminium coat not still good barrier layer, and surface is fine and close oxidation again
Aluminium film is covered, and a kind of passive state is showed.Coating has well in the air of sulfur compound, ammonia, moisture and dust
Corrosion resisting property.In the medium environment containing chloride of marine atmosphere, coating because its surface film oxide is dissolved can be to steel
When iron-based body generates electrochemical protection.The immersion plating temperature of aluminium is generally in 700-780 degree, and the coating generated is double-layer structure, outside
Layer is aluminium layer, and internal layer is iron-Al intermetallic, and for coating with matrix at metallurgical binding, bond strength is high.Due to the property of aluminium
Compare living group, easily aoxidizes, therefore hot-dip difficulty is larger.Only have a few countries to grasp this technology in the world at present, and
Carry out big industrialized production.
At present China's steel and iron industry in terms of kind, quality, cost, service and labor productivity with advanced international standard still
There are certain gaps, in face of the domestic and international market competition being growing more intense, it is necessary to which paces of accelerating restructuring, this is not only China
The needs of the metallurgical industry survival and development and the development trend of world today's metallurgical industry.It is set by technological innovation, optimization
Meter, precision manufactureing and foreign technology cooperation break through and restrict China's hot-dip aluminizing production technology and equipment Development bottleneck.It visits simultaneously
Hot-dip aluminum plating technology development is begged in national economy sustainable development, energy saving, in terms of mineral products significance and foreground.Pass through
Advanced materialogy design is to solve one of the solution direction of alloy for hot-dip significant problem in hot-dip production process.It can be with
It is expected that novel alloy for hot-dip can solve industrial problem as above, such material will more make in the near future
The wide application obtained with field.
Invention content
The purpose of the present invention is to overcome the deficiency in the prior art, and providing one kind can make under 700-780 degree atmospheric conditions
New type low temperature environmental protection rub resistance aluminium alloy containing B and Ge used for hot dip galvanizing.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of new type low temperature environmental protection rub resistance aluminium alloy containing B and Ge used for hot dip galvanizing.By weight percentage, the group of alloy becomes K:
0.2-0.4wt.%,V:0.5-0.8wt.%,Ge:0.4-0.5wt.%,Sr:1.0-2.0wt.%,Sc:0.3-0.5wt.%,Ce:
0.1-0.2wt.%,B:0.1-0.2wt.%, surplus are aluminium.
The preparation method of above-mentioned new type low temperature environmental protection rub resistance aluminium alloy containing B and Ge used for hot dip galvanizing, 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 700-800 degree, and
It is sufficiently stirred 10 minutes or so using electromagnetic agitation effect；Alloy liquid is stood in the heat preservation of 700-800 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 hot dipping plating that hot-dip raw material is used for subsequent handling can be regarded, the wherein operating temperature of hot-dip is 700-780
Degree, hot dipping time are 30-60 seconds.
Compared with prior art, the present invention has the advantages that：
（1）It is increasing to hot-dip aluminizing alloy-steel plate demand in the currently fields such as household electrical appliances both domestic and external, building materials, automobile.But
It is that most of manufacturer is still producing and using traditional hot-dip galvanizing sheet steel.For this product there are many defects, service life is short by (10
Year or so), machining property is poor, and coating damages caused by elongation strain, especially under conditions of higher than room temperature, coating with
Matrix junction is brittle, and oxidizable generation firecoat, anti-fatigue performance is poor, and cracking is generated after bended several times, and it is de- coating occur
Skin phenomenon.The novel hot-dip plating aluminium alloy of present patent application protection can overcome problem above completely, be a kind of novel materials.
It is characterized in that anti-oxidant under hot conditions, antibiosis produces firecoat, can prevent embrittlement substantially, and service life is 3-6 times of galvanizing, bending examination
It is strong to test uncoated, cracking, decortication, coating and base steel binding force.
（2）The product alloying component is uniformly, segregation-free, the micro- close, non-oxidation of tissue is mingled with and stomata, anti intercrystalline corrosion ability
By force, therefore after coated steel sheet there is stronger corrosion resistance, especially under the high temperature conditions.Through 168 hours tables of high-temperature oxydation under 315 degree
Face is colour-fast, and the crisp phenomenon of steel does not occur, has more good cold bending performance and welding performance, surface aesthetic.The material passes through
After crossing ingredient and structure optimization, dross and thickness of coating can be effectively reduced, improves the table of coating and quality.Solves former hot-dip
Steel plate short life, security performance is low, it is not easy to be processed the problems such as, become in the fields such as building, household electrical appliance, mechanical transport ideal material
Material.It is especially used under high temperature and etching condition, there is broader market.
（3）Using the hot-dip aluminizing plank, can significantly save the spelter coating that user uses in many fields at present is
275g/m2Thin galvanizing by dipping strip totle drilling cost.It can be used for construction industry, can be also used for large scale business and civil buildings
Draft tube liner system etc., and it is applied to car industry.Compared to traditional spelter coating, which has good corrosion resistance
Can, thus the weight of metal coating can be reduced, while also improving the performance of clad plate band.Frictional experiment the result shows that, this specially
The skin-friction coefficient of the hot-dip aluminizing alloy of profit application protection maintains 0.001-0.003, and conventional hot-dip kirsite one
As be 0.008-0.01.The surface wear scar width of hot-dip aluminizing is less than galvanizing by dipping, and coating polishing scratch narrows, and wear extent reduces,
This is because the tissue of the coating of hot-dip aluminizing is thin, hardness is high, when being collided by the external world, coating hardness it is more high be not easy it is recessed,
Coating shock resistance and scratch resistance capability are better, to reduce coating wear extent.
Specific implementation mode
Embodiment 1
A kind of new type low temperature environmental protection rub resistance aluminium alloy containing B and Ge used for hot dip galvanizing.By weight percentage, the group of alloy becomes K:
0.2wt.%,V:0.5wt.%,Ge:0.4wt.%,Sr:1.0wt.%,Sc:0.3wt.%,Ce:0.1wt.%,B:0.1-0.2wt.%,
Surplus is aluminium.The preparation method of above-mentioned new type low temperature environmental protection rub resistance aluminium alloy containing B and Ge used for hot dip galvanizing, includes the following steps：
As above the raw material matched is added in the electric induction furnace of argon gas protection, and uses silicon carbide crucible；The raw material that will as above match
It is added in the electric induction furnace of atmosphere protection, and uses silicon carbide crucible；Sensing heating forms alloy solution to 700-800 degree,
And it is sufficiently stirred 10 minutes or so using electromagnetic agitation effect；Alloy liquid is stood in the heat preservation of 700-800 degree and is poured after ten minutes
It casts onto in the same level equipment of heat top and carries out semi-continuous casting into required billet, it is 5-8m/min that ingot casting, which moves down speed,.The casting
Ingot can regard the thin plate hot dipping plating that hot-dip raw material is used for subsequent handling, and the wherein operating temperature of hot-dip is 700-
780 degree, the hot dipping time is 30-60 seconds.
Relative to traditional galvanizing by dipping or allumen, this patent provides a kind of novel aluminium used for hot dip galvanizing conjunction
Gold.The product alloying component is uniformly, segregation-free, the micro- close, non-oxidation of tissue is mingled with and stomata, and anti intercrystalline corrosion ability is strong, therefore plates
There is stronger corrosion resistance after covering steel plate, especially under the high temperature conditions.It is not taken off through 168 hours surfaces of high-temperature oxydation under 315 degree
The crisp phenomenon of steel does not occur for color, has more good cold bending performance and welding performance, surface aesthetic.The material passes through ingredient
After structure optimization, dross and thickness of coating can be effectively reduced, improves the table of coating and quality.It, should compared to traditional spelter coating
Alloy coat has good corrosion resistance, thus can reduce the weight of metal coating, while also improving clad plate band
Performance.Frictional experiment the result shows that, the skin-friction coefficient of hot-dip aluminizing alloy of present patent application protection maintains 0.001-
0.003, and conventional hot-dip kirsite is generally 0.008-0.01.The surface wear scar width of hot-dip aluminizing is less than galvanizing by dipping
, coating polishing scratch narrows, and wear extent reduces, this is because the tissue of the coating of hot-dip aluminizing is thin, hardness is high, is collided by the external world
When, the coating hardness the high more is not easy recessed, and coating shock resistance and scratch resistance capability are better, to reduce coating wear extent.
Embodiment 2
A kind of new type low temperature environmental protection rub resistance aluminium alloy containing B and Ge used for hot dip galvanizing.By weight percentage, the group of alloy becomes K:
0.4wt.%,V:0.8wt.%,Ge:0.5wt.%,Sr:2.0wt.%,Sc:0.5wt.%,Ce:0.2wt.%,B:0.2wt.%, surplus
For aluminium.The preparation method of above-mentioned new type low temperature environmental protection rub resistance aluminium alloy containing B and Ge used for hot dip galvanizing, includes the following steps：It will be as
The raw material of upper proportioning is added in the electric induction furnace of argon gas protection, and uses silicon carbide crucible；As above the raw material matched is added
Into the electric induction furnace of atmosphere protection, and use silicon carbide crucible；Sensing heating forms alloy solution, and profit to 700-800 degree
It is sufficiently stirred 10 minutes or so with electromagnetism agitation effects；Alloy liquid is stood in the heat preservation of 700-800 degree and is cast to after ten minutes
Semi-continuous casting is carried out into required billet in the same level equipment of heat top, and it is 5-8m/min that ingot casting, which moves down speed,.The ingot casting can
To be used for the thin plate hot dipping plating of subsequent handling as hot-dip raw material, the wherein operating temperature of hot-dip is 700-780 degree,
The hot dipping time is 30-60 seconds.
Relative to traditional galvanizing by dipping or allumen, this patent provides a kind of novel aluminium used for hot dip galvanizing conjunction
Gold.The product alloying component is uniformly, segregation-free, the micro- close, non-oxidation of tissue is mingled with and stomata, and anti intercrystalline corrosion ability is strong, therefore plates
There is stronger corrosion resistance after covering steel plate, especially under the high temperature conditions.It is not taken off through 168 hours surfaces of high-temperature oxydation under 315 degree
The crisp phenomenon of steel does not occur for color, has more good cold bending performance and welding performance, surface aesthetic.The material passes through ingredient
After structure optimization, dross and thickness of coating can be effectively reduced, improves the table of coating and quality.It, should compared to traditional spelter coating
Alloy coat has good corrosion resistance, thus can reduce the weight of metal coating, while also improving clad plate band
Performance.Frictional experiment the result shows that, the skin-friction coefficient of hot-dip aluminizing alloy of present patent application protection maintains 0.001-
0.003, and conventional hot-dip kirsite is generally 0.008-0.01.The surface wear scar width of hot-dip aluminizing is less than galvanizing by dipping
, coating polishing scratch narrows, and wear extent reduces, this is because the tissue of the coating of hot-dip aluminizing is thin, hardness is high, is collided by the external world
When, the coating hardness the high more is not easy recessed, and coating shock resistance and scratch resistance capability are better, to reduce coating wear extent.
Embodiment 3
A kind of new type low temperature environmental protection rub resistance aluminium alloy containing B and Ge used for hot dip galvanizing.By weight percentage, the group of alloy becomes K:
0.3wt.%,V:0.6wt.%,Ge:0.4wt.%,Sr:1.4wt.%,Sc:0.4wt.%,Ce:0.1wt.%,B:0.1wt.%, surplus
For aluminium.The preparation method of above-mentioned new type low temperature environmental protection rub resistance aluminium alloy containing B and Ge used for hot dip galvanizing, includes the following steps：It will be as
The raw material of upper proportioning is added in the electric induction furnace of argon gas protection, and uses silicon carbide crucible；As above the raw material matched is added
Into the electric induction furnace of atmosphere protection, and use silicon carbide crucible；Sensing heating forms alloy solution, and profit to 700-800 degree
It is sufficiently stirred 10 minutes or so with electromagnetism agitation effects；Alloy liquid is stood in the heat preservation of 700-800 degree and is cast to after ten minutes
Semi-continuous casting is carried out into required billet in the same level equipment of heat top, and it is 5-8m/min that ingot casting, which moves down speed,.The ingot casting can
To be used for the thin plate hot dipping plating of subsequent handling as hot-dip raw material, the wherein operating temperature of hot-dip is 700-780 degree,
The hot dipping time is 30-60 seconds.
Relative to traditional galvanizing by dipping or allumen, this patent provides a kind of novel aluminium used for hot dip galvanizing conjunction
Gold.The product alloying component is uniformly, segregation-free, the micro- close, non-oxidation of tissue is mingled with and stomata, and anti intercrystalline corrosion ability is strong, therefore plates
There is stronger corrosion resistance after covering steel plate, especially under the high temperature conditions.It is not taken off through 168 hours surfaces of high-temperature oxydation under 315 degree
The crisp phenomenon of steel does not occur for color, has more good cold bending performance and welding performance, surface aesthetic.The material passes through ingredient
After structure optimization, dross and thickness of coating can be effectively reduced, improves the table of coating and quality.It, should compared to traditional spelter coating
Alloy coat has good corrosion resistance, thus can reduce the weight of metal coating, while also improving clad plate band
Performance.Frictional experiment the result shows that, the skin-friction coefficient of hot-dip aluminizing alloy of present patent application protection maintains 0.001-
0.003, and conventional hot-dip kirsite is generally 0.008-0.01.The surface wear scar width of hot-dip aluminizing is less than galvanizing by dipping
, coating polishing scratch narrows, and wear extent reduces, this is because the tissue of the coating of hot-dip aluminizing is thin, hardness is high, is collided by the external world
When, the coating hardness the high more is not easy recessed, and coating shock resistance and scratch resistance capability are better, to reduce coating wear extent.
Claims (3)
1. a kind of new type low temperature environmental protection rub resistance aluminium alloy containing B and Ge used for hot dip galvanizing；According to weight percent, the ingredient of the alloy
For: K:0.2-0.4wt.%,V:0.5-0.8wt.%,Ge:0.4-0.5wt.%,Sr:1.0-2.0wt.%,Sc:0.3-0.5wt.%,
Ce:0.1-0.2wt.%,B:0.1-0.2wt.%, surplus are aluminium.
2. new type low temperature environmental protection rub resistance aluminium alloy containing B and Ge used for hot dip galvanizing described in claim 1, it is characterised in that including as follows
Smelting step：As above the raw material matched is added in the electric induction furnace of argon gas protection, and uses silicon carbide crucible；To as above it match
The raw material of ratio is added in the electric induction furnace of atmosphere protection, and uses silicon carbide crucible；Sensing heating is formed to 700-800 degree and is closed
Gold solution, and be sufficiently stirred 10 minutes or so using electromagnetic agitation effect；Alloy liquid is stood 10 points in the heat preservation of 700-800 degree
It is cast to after clock in the same level equipment of heat top and carries out semi-continuous casting into required billet, it is 5-8m/ that ingot casting, which moves down speed,
min。
3. according to new type low temperature environmental protection rub resistance aluminium alloy containing B and Ge used for hot dip galvanizing described in claim 1, it is characterised in that comprising such as
It is lower to use step：The ingot casting can regard the thin plate hot dipping plating that hot-dip raw material is used for subsequent handling, wherein hot-dip
Operating temperature is 700-780 degree, and the hot dipping time is 30-60 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810617629.9A CN108456809A (en) | 2018-06-15 | 2018-06-15 | New type low temperature environmental protection rub resistance aluminium alloy containing B and Ge used for hot dip galvanizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810617629.9A CN108456809A (en) | 2018-06-15 | 2018-06-15 | New type low temperature environmental protection rub resistance aluminium alloy containing B and Ge used for hot dip galvanizing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108456809A true CN108456809A (en) | 2018-08-28 |
Family
ID=63214931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810617629.9A Withdrawn CN108456809A (en) | 2018-06-15 | 2018-06-15 | New type low temperature environmental protection rub resistance aluminium alloy containing B and Ge used for hot dip galvanizing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108456809A (en) |
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2018
- 2018-06-15 CN CN201810617629.9A patent/CN108456809A/en not_active Withdrawn
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Application publication date: 20180828 |
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| WW01 | Invention patent application withdrawn after publication |