CN108315590A - Resistance to oxidation spends high silicon content active steel galvanizing by dipping kirsite without zinc - Google Patents
Resistance to oxidation spends high silicon content active steel galvanizing by dipping kirsite without zinc Download PDFInfo
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- CN108315590A CN108315590A CN201810433276.7A CN201810433276A CN108315590A CN 108315590 A CN108315590 A CN 108315590A CN 201810433276 A CN201810433276 A CN 201810433276A CN 108315590 A CN108315590 A CN 108315590A
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- zinc
- galvanizing
- dipping
- silicon content
- high silicon
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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
-
- 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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- 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 resistances to oxidation to spend high silicon content active steel galvanizing by dipping kirsite and its processing technology without zinc.According to weight percent, the ingredient of the alloy is：Li：0.8‑1.2wt.%,Sn:1.5‑2.8wt.%,Ge:1.0‑2.5wt.%,Ni：0.8 1.2wt.%, Y:0.5‑0.8wt.%,Yb:0.1 0.2wt.%, surplus are zinc.Gained zinc coat can eliminate the generation that zinc is spent after the galvanizing by dipping alloy is used for high silicon content active steel.In addition, the characteristics of also having production cost low, being convenient for large-scale production.
Description
Technical field
The present invention relates to technical field of alloy, specifically, being related to a kind of kirsite.
Background technology
Galvanizing is that the metals such as steel, stainless steel, cast iron are immersed in fused solution metal or alloy to the one kind for obtaining coating
Technology.Galvanizing is most widely used, steel surface processing method that the ratio of performance to price is optimal in the world today.Galvanizing
Product lengthens the life to the corrosion inhibitor of steel, energy-saving material-saving plays inestimable and irreplaceable role, while electroplated steel products are also state
The high added value undersupplied product that family fosters and first develops.Hot galvanized layer forming process be iron-based body with outmost pure zinc layer it
Between form the process of iron-kirsite, workpiece surface forms iron-zinc alloy layer in hot-dip, just makes between iron and pure zinc layer
It combines very well.
When zinc layers are destroyed seriously, when injuring iron-based body, zinc generates electrochemical protection, the normal potential-of zinc to matrix
0.76V, the normal potential -0.44V of iron, zinc is dissolved as anode when zinc forms micro cell with iron, and iron is protected as cathode
Shield.Obvious galvanizing is better than electrogalvanizing to the weather-resistance of parent metal iron.Since the standard electrode potential of zinc is defeated by
Iron, therefore zinc coat has the function of anode loss protection base steel in water and wet air, so as to greatly extend
The service life of steel.Industrially common zinc coat has galvanizing by dipping, electrogalvanizing, mechanical zinc-plating and thermal spraying（Plating）Zinc
Deng, wherein galvanizing accounts for about the 95% of zinc-plated total amount, and galvanizing worldwide accounts for the 40% of zinc yield with zinc amount, China about
Account for 30% or so of zinc yield.
The application of galvanizing also accordingly expands with the development of industrial or agricultural.Therefore, in industry, (such as chemical industry is set hot dip zinc products
Standby, PETROLEUM PROCESSING, seafari, metal structure, power Transmission, shipbuilding etc.), agricultural is (such as：Sprinkling irrigation, dim room), building (such as：Water
And coal gas conveying, cable conduct, scaffold, house etc.), bridge, transport etc., be used in large quantities.Due to galvanizing
Product has the characteristics that specious, corrosion resistance and good, will be used wider and wider general.
The quality of galvanizing is related with many factors, includes the chemical composition of steel part, the alloying component of zinc bath, zinc-plated temperature
Degree, operating procedure etc..For the chemical composition of steel part, influence of the silicon content to zinc coat in steel is maximum.In general, working as
When silicon content in steel is more than 0.3wt.%, zinc coat significantly thickens and surface is gloomy, and poor adhesion, zinc coating quality significantly drops
Low this kind of steel of is known as active steel the galvanizing industry more.Wherein, silicon content is known as low activity in the steel of 0.3-0.8wt.% and contains Si
Steel.When the content of silicon in steel is higher than 1.2wt.%, referred to as high silicon content active steel.The hot-dip coated surface of active steel is solidifying
When there is the crystallization decorative pattern of coated metal, this crystallization decorative pattern is particularly evident to galvanized sheet, shows beautiful zinc crystallization
Appearance, thus as the important feature of heat zinc coating plate appearance, commonly referred to as this crystallization decorative pattern is spent for zinc.This zinc-plated plate surface liquid
Zinc forms beautiful zinc flower after crystallisation by cooling, and as the distinctive mark of galvanized sheet, is widely used in building trade.But
It is that when hot-dip galvanizing sheet steel carries out application, surface relief injustice caused by zinc is spent is still high-visible after painting, to influence
The surface quality of product limits the application of normal zinc flower hot-galvanized steel plate.
In order to solve low silicon content（0.3-0.8wt.%）The zinc coating quality problem of active steel has developed a variety of zinc-plated skills
Art, such as sealer galvannealing, the zinc-plated side of high temperature etc..But supplement zinc-nickel in the regular bath toward zinc is needed to close using these methods
Gold, and cadmia in zinc bath can be made to increase, in addition the technology is only effective less than 0.25% active steel to silicon content.In recent years, Billy
When and the Galvanco alloys that propose of Canada Company can comprehensively solve activity galvanizing steel problem, and some are national in Europe
Application is arrived.But these methods for high silicon content active steel and are not suitable for.Although at present can be by living in high silicon content
Property steel surface form one layer of barrier layer and then carry out galvanizing to reduce or delay influence of the silicon to zinc coat in steel.But chemical plating
Nickel method need to carry out at relatively high temperatures, and plating solution maintenance is more difficult.In addition, cost is very high, and enable plating piece the deformation even tendency of cracking
Seriously.
Invention content
The purpose of the present invention is to overcome the deficiency in the prior art, and providing one kind can make under 360-450 degree atmospheric conditions
Resistance to oxidation spends high silicon content active steel galvanizing by dipping kirsite without zinc.The alloy this temperature range to high activity steel into
When row galvanizing by dipping, gained zinc coat not only has the mechanical property of common nonactive steel surface zinc coat, but also can disappear
Except zinc is spent.This method also has production cost low, the characteristics of being convenient for mass producing.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of resistance to oxidation spends high silicon content active steel galvanizing by dipping kirsite without zinc.By weight percentage, the composition of alloy
For：Li： 0.8-1.2wt.%,Sn:1.5-2.8wt.% ,Ge:1.0-2.5wt.%,Ni：0.8-1.2wt.%, Y:0.5-
0.8wt.%, Yb:0.1-0.2wt.%, surplus are zinc.The kirsite in fusion process because volatilize and form the reasons such as clinker and
The weight of loss is in 1.0-2.0wt.% or so.
Above-mentioned resistance to oxidation spends the preparation method of high silicon content active steel galvanizing by dipping kirsite without zinc, including walks as follows
Suddenly：As above the raw material matched is added in the electric induction furnace of atmosphere protection, and uses silicon carbide crucible；Sensing heating is to 500-
600 degree are formed alloy solution, and are sufficiently stirred 10 minutes or so using electromagnetic agitation effect；By alloy liquid in 500-600 degree
Heat preservation, which stands to be cast to after ten minutes in the same level equipment of heat top, carries out semi-continuous casting into required billet, and ingot casting moves down speed
Degree is 5-10m/min.The ingot casting can as galvanizing by dipping raw material for subsequent handling galvanizing by dipping processing come to steel wire into
Row protection operation, the wherein operating temperature of galvanizing by dipping are 360-450 degree, and the hot dipping time is 30-40 seconds.
Compared with prior art, the present invention has the advantages that：
（1）Patent of the present invention is carried for the bad present situation of the final coating performance of current high activity Si steel galvanizing by dipping kirsite
A kind of novel materialogy solution is supplied.The kirsite has extremely excellent resistance to volatilization and oxidation resistent susceptibility, Ke Yida
5 hours are stood under atmospheric environment without significantly aoxidizing in 400-800 degree temperature ranges.To the liquid alloy
Be stirred, blow etc. during melt treatments, after its skin covering of the surface is destroyed because being vigorously stirred, can rapid regeneration, successfully hinder
Hinder the oxidation and volatilization of alloy.
（2）Hot-galvanized steel structural member standard provides that the galvanized layer thickness of galvanized part need to ensure at 30-60 microns, to ensure
The corrosion resistance of plating piece and good adhesiveness.In addition, the operating temperature of general galvanizing by dipping is 450-580 degree, galvanizing by dipping
Time is 30-60 seconds.Zinc-plated using this patent uses alloy, under the low temperature environment of 360-450 degree, so that it may at 30-40 seconds
Inherence active steel surface hot-dip on thickness be 50-80 microns of coating.Since operating temperature is low, the hot dipping time is short, energy saving
It is with obvious effects.Convenient for operation, year consuming fund is also less, for the prefered method in galvanizing by dipping production.
（3）Galvanizing by dipping, gained coating microstructure pattern and non-live are carried out to high silicon content activity steel surface using the alloy
Property steel zinc-plated layer tissue it is identical, be continuous fine and close lamellar tissue.In comparison, contained in high silicon using common galvanized alloy
Active steel surface heat zinc immersion layer growth failure is measured, and internal layer is broken into bulk, in the shape that bursts out to outgrowth.Galvanized sheet presses surface
Exterior appearance, which is divided into, to be had zinc flower and spends two kinds without zinc.General zinc layers get over Gao Yuegui, and identical zinc layers have Hua Gui without flower ratio.It is needed from market
Ask consideration, production high without zinc flower prod economic well-being of workers and staff.The alloy protected using this patent, can be in conventional hot dip zinc production line
On can go out the hot dip galvanized product of no zinc flower in high silicon content active steel surface production.
（4）For the material after to high silicon content active steel galvanizing by dipping, steel wire can be in subsequent drawing deformation into one
Undergauge is walked, tube reducing falls off than that can reach 30-60% without the excessive deformation of zinc coat occurs.Thus, the coating is in addition to tool
Have outside extremely excellent bond strength, also there is outstanding deformation plasticity.Under desert Environment, the oxidation rate of the material is
1.4×10-4Mm/.Thus under desert climate, which can use 30 years or more safely without apparent oxidative phenomena
Occur.In comparison, the zinc coat of common hot-dip galvanizing alloy general working life under desert Environment is 20 years or so.It can
With, it is expected that the industrialization of such alloy can obtain great economic and social benefit.In the near future, with more multiple-project
Application field is expanded, such novel alloy will be used widely in more galvanizings by dipping.
Specific implementation mode
Embodiment 1
One kind spending high silicon content active steel galvanizing by dipping kirsite using resistance to oxidation in 360-450 degree without zinc.Percentage by weight
Than meter, the chemical composition of alloy is：Li： 0.8wt.%,Sn:1.5wt.% ,Ge:1.0wt.%,Ni：0.8wt.%, Y:
0.5wt.%, Yb:0.1wt.%, surplus are zinc.The preparation method of alloy：As above the raw material matched is added to atmosphere protection
In electric induction furnace, and use silicon carbide crucible；Sensing heating forms alloy solution to 500-600 degree, and is imitated using electromagnetic agitation
It should be sufficiently stirred 10 minutes or so；Alloy liquid is cast to heat top same level after ten minutes in 500-600 degree heat preservation standing to set
At required billet, it is 5-10m/min that ingot casting, which moves down speed, for standby interior progress semi-continuous casting.The ingot casting can regard hot-dip
Zinc raw material handles to carry out protection operation to steel wire for the galvanizing by dipping of subsequent handling, and the operating temperature of wherein galvanizing by dipping is
360-450 degree, hot dipping time are 30-40 seconds.
Galvanizing by dipping, gained coating microstructure pattern and nonactive steel are carried out to high silicon content activity steel surface using the alloy
Zinc-plated layer tissue it is identical, be continuous fine and close lamellar tissue.In comparison, it is lived in high silicon content using common galvanized alloy
Property steel surface dip galvanized growth failure, and internal layer is broken into bulk, in the shape that bursts out to outgrowth.Using this patent protection
Alloy can go out the hot-dip of no zinc flower on conventional hot dip zinc production line in high silicon content active steel surface production
Zinc product.Since operating temperature is low, the hot dipping time is short, and energy-saving effect is apparent.Convenient for operation, year consuming fund is also less,
Prefered method in being produced for galvanizing by dipping.
After to high silicon content active steel galvanizing by dipping, steel wire can further contract the material in subsequent drawing deformation
Diameter, tube reducing fall off than that can reach 30-60% without the excessive deformation of zinc coat occurs.Thus, the coating is in addition to pole
Outside its excellent bond strength, also there is outstanding deformation plasticity.Under desert Environment, the oxidation rate of the material is 1.4 ×
10-4Mm/.Thus under desert climate, which can use safely 30 years or more occurs without apparent oxidative phenomena.
In comparison, the zinc coat of common hot-dip galvanizing alloy general working life under desert Environment is 20 years or so.
Embodiment 2
One kind spending high silicon content active steel galvanizing by dipping kirsite using resistance to oxidation in 360-450 degree without zinc.Percentage by weight
Than meter, the chemical composition of alloy is：Li： 1.0wt.%,Sn:2.4wt.% ,Ge:1.5wt.%,Ni：1.0wt.%, Y:
0.6wt.%, Yb:0.1wt.%, surplus are zinc.The preparation method of alloy：As above the raw material matched is added to atmosphere protection
In electric induction furnace, and use silicon carbide crucible；Sensing heating forms alloy solution to 500-600 degree, and is imitated using electromagnetic agitation
It should be sufficiently stirred 10 minutes or so；Alloy liquid is cast to heat top same level after ten minutes in 500-600 degree heat preservation standing to set
At required billet, it is 5-10m/min that ingot casting, which moves down speed, for standby interior progress semi-continuous casting.The ingot casting can regard hot-dip
Zinc raw material handles to carry out protection operation to steel wire for the galvanizing by dipping of subsequent handling, and the operating temperature of wherein galvanizing by dipping is
360-450 degree, hot dipping time are 30-40 seconds.
Galvanizing by dipping, gained coating microstructure pattern and nonactive steel are carried out to high silicon content activity steel surface using the alloy
Zinc-plated layer tissue it is identical, be continuous fine and close lamellar tissue.In comparison, it is lived in high silicon content using common galvanized alloy
Property steel surface dip galvanized growth failure, and internal layer is broken into bulk, in the shape that bursts out to outgrowth.Using this patent protection
Alloy can go out the hot-dip of no zinc flower on conventional hot dip zinc production line in high silicon content active steel surface production
Zinc product.Since operating temperature is low, the hot dipping time is short, and energy-saving effect is apparent.Convenient for operation, year consuming fund is also less,
Prefered method in being produced for galvanizing by dipping.
After to high silicon content active steel galvanizing by dipping, steel wire can further contract the material in subsequent drawing deformation
Diameter, tube reducing fall off than that can reach 30-60% without the excessive deformation of zinc coat occurs.Thus, the coating is in addition to pole
Outside its excellent bond strength, also there is outstanding deformation plasticity.Under desert Environment, the oxidation rate of the material is 1.4 ×
10-4Mm/.Thus under desert climate, which can use safely 30 years or more occurs without apparent oxidative phenomena.
In comparison, the zinc coat of common hot-dip galvanizing alloy general working life under desert Environment is 20 years or so.
Embodiment 3
One kind spending high silicon content active steel galvanizing by dipping kirsite using resistance to oxidation in 360-450 degree without zinc.Percentage by weight
Than meter, the chemical composition of alloy is：Li： 1.2wt.%,Sn:1.8wt.% ,Ge:2.4wt.%,Ni：1.0wt.%, Y:
0.6wt.%, Yb:0.1wt.%, surplus are zinc.The preparation method of alloy：As above the raw material matched is added to atmosphere protection
In electric induction furnace, and use silicon carbide crucible；Sensing heating forms alloy solution to 500-600 degree, and is imitated using electromagnetic agitation
It should be sufficiently stirred 10 minutes or so；Alloy liquid is cast to heat top same level after ten minutes in 500-600 degree heat preservation standing to set
At required billet, it is 5-10m/min that ingot casting, which moves down speed, for standby interior progress semi-continuous casting.The ingot casting can regard hot-dip
Zinc raw material handles to carry out protection operation to steel wire for the galvanizing by dipping of subsequent handling, and the operating temperature of wherein galvanizing by dipping is
360-450 degree, hot dipping time are 30-40 seconds.
Galvanizing by dipping, gained coating microstructure pattern and nonactive steel are carried out to high silicon content activity steel surface using the alloy
Zinc-plated layer tissue it is identical, be continuous fine and close lamellar tissue.In comparison, it is lived in high silicon content using common galvanized alloy
Property steel surface dip galvanized growth failure, and internal layer is broken into bulk, in the shape that bursts out to outgrowth.Using this patent protection
Alloy can go out the hot-dip of no zinc flower on conventional hot dip zinc production line in high silicon content active steel surface production
Zinc product.Since operating temperature is low, the hot dipping time is short, and energy-saving effect is apparent.Convenient for operation, year consuming fund is also less,
Prefered method in being produced for galvanizing by dipping.
After to high silicon content active steel galvanizing by dipping, steel wire can further contract the material in subsequent drawing deformation
Diameter, tube reducing fall off than that can reach 30-60% without the excessive deformation of zinc coat occurs.Thus, the coating is in addition to pole
Outside its excellent bond strength, also there is outstanding deformation plasticity.Under desert Environment, the oxidation rate of the material is 1.4 ×
10-4Mm/.Thus under desert climate, which can use safely 30 years or more occurs without apparent oxidative phenomena.
In comparison, the zinc coat of common hot-dip galvanizing alloy general working life under desert Environment is 20 years or so.
Claims (3)
1. a kind of resistance to oxidation spends high silicon content active steel galvanizing by dipping kirsite without zinc；According to weight percent, the alloy
Ingredient is：Li： 0.8-1.2wt.%,Sn:1.5-2.8wt.% ,Ge:1.0-2.5wt.%,Ni：0.8-1.2wt.%, Y:0.5-
0.8wt.%, Yb:0.1-0.2wt.%, surplus are zinc.
2. resistance to oxidation spends high silicon content active steel galvanizing by dipping kirsite without zinc according to claim 1, it is characterised in that
Include the following steps：As above the raw material matched is added in the electric induction furnace of atmosphere protection, and uses silicon carbide crucible；Induction
It is heated to 500-600 degree and forms alloy solution, and be sufficiently stirred 10 minutes or so using electromagnetic agitation effect；Alloy liquid is existed
The heat preservation of 500-600 degree, which stands to be cast to after ten minutes in the same level equipment of heat top, carries out semi-continuous casting into required billet,
It is 5-10m/min that ingot casting, which moves down speed,.
3. resistance to oxidation spends high silicon content active steel galvanizing by dipping kirsite without zinc according to claim 1, it is characterised in that
Including following procedure of processing：The ingot casting can be handled to come to steel wire as galvanizing by dipping raw material for the galvanizing by dipping of subsequent handling
Protection operation is carried out, the wherein operating temperature of galvanizing by dipping is 360-450 degree, and the hot dipping time is 30-40 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810433276.7A CN108315590A (en) | 2018-05-08 | 2018-05-08 | Resistance to oxidation spends high silicon content active steel galvanizing by dipping kirsite without zinc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810433276.7A CN108315590A (en) | 2018-05-08 | 2018-05-08 | Resistance to oxidation spends high silicon content active steel galvanizing by dipping kirsite without zinc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108315590A true CN108315590A (en) | 2018-07-24 |
Family
ID=62895600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810433276.7A Withdrawn CN108315590A (en) | 2018-05-08 | 2018-05-08 | Resistance to oxidation spends high silicon content active steel galvanizing by dipping kirsite without zinc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108315590A (en) |
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2018
- 2018-05-08 CN CN201810433276.7A patent/CN108315590A/en not_active Withdrawn
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Application publication date: 20180724 |
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