CN108441679A - Resistance to oxidation spends mild steel galvanizing by dipping kirsite containing Mn without zinc - Google Patents
Resistance to oxidation spends mild steel galvanizing by dipping kirsite containing Mn without zinc Download PDFInfo
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- CN108441679A CN108441679A CN201810422849.6A CN201810422849A CN108441679A CN 108441679 A CN108441679 A CN 108441679A CN 201810422849 A CN201810422849 A CN 201810422849A CN 108441679 A CN108441679 A CN 108441679A
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- Prior art keywords
- zinc
- dipping
- galvanizing
- alloy
- oxidation
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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
-
- 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
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/38—Wires; Tubes
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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 resistances to oxidation to spend mild steel galvanizing by dipping kirsite containing Mn and its processing technology without zinc.According to weight percent, the ingredient of the alloy is：Li：0.4‑1.0wt.%,Mn:1.0‑2.0wt.%,Ti:0.5‑1.0wt.%,Ge：1.0 1.4wt.%, Sc:0.2‑0.4wt.%,Th：0.2 0.4wt.%, surplus are zinc.The development of the alloy can solve the phenomenon that plating piece surface zinc flower generates in industrial galvanizing by dipping production.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
Steel possesses the advantages that good intensity, mouldability, production economy and recuperability, in the process of construction of industry
In, it plays a very important role.But steel is easy to react with environment, generates stable oxide or salt.Steel
The corrosion service life of steel, had brought tremendous economic losses to the mankind, and have seriously polluted the environment, therefore
People take various guard technologies to improve the antiseptic property of steel.
Since the standard electrode potential of zinc is defeated by iron, zinc coat has galvanic anode protection in water and wet air
The effect for protecting base steel, so as to greatly extend the service life of steel.Industrially common zinc coat have galvanizing by dipping,
Electrogalvanizing, mechanical zinc-plating and thermal spraying（Plating）Zinc etc., wherein galvanizing account for about the 95% of zinc-plated total amount, and galvanizing is alive with zinc amount
The 40% of zinc yield is accounted within the scope of boundary, accounts for about 30% or so of zinc yield in China.
Galvanizing by dipping is to delay one of most effective means of steel material environmental corrosion, it is surface is cleaned, activation
Steel product afterwards is dipped in the zinc liquid of melting, by the reaction and diffusion between iron zinc, is adhered in steel product coating surface
The good zn alloy coating of property.Compared with other metal protection methods, physical barriers and electrification of the hot-dip galvanizing technique in coating
It learns in the protection feature that is combined of protection, in the bond strength of coating and matrix, the compactness of coating, durability, maintenance-free
In adaptability with economy and its to article shape and size, there is unrivaled advantage.Hot dip galvanized product master at present
There are steel plate, steel band, steel wire, steel pipe etc., wherein hot-dip galvanized steel sheet proportion maximum.For a long time, hot-dip galvanizing technique
Because of its cheap plating cost, excellent protection feature and beautiful appearance and the favor for receiving people, be widely used in automobile,
The fields such as building, household electrical appliances, chemical industry, machinery, oil, metallurgy, light industry, traffic, electric power, aviation and ocean engineering.
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..There is the crystallization decorative pattern of coated metal, this crystallization decorative pattern in solidification in the hot-dip coated surface of steel plate
It is particularly evident to galvanized sheet, the appearance of beautiful zinc crystallization is showed, thus as the important feature of heat zinc coating plate appearance, usually
This crystallization decorative pattern is referred to as zinc flower.This zinc-plated plate surface liquid Zn forms beautiful zinc flower after crystallisation by cooling, and as plating
The distinctive mark of zine plate is widely used in building trade.But when hot-dip galvanizing sheet steel progress application, surface is convex caused by zinc is spent
Recessed injustice is still high-visible after painting, to affect the surface quality of product, limits normal zinc flower hot-galvanized steel plate
Application.Mild steel is the steel grade being most widely used at present, and the main object of galvanizing by dipping.According to automobile and other industries
High requirement, people propose the imagination eliminated mild steel zinc flower and make zinc flower refinement very early, but up to the present not
A kind of efficient and succinct production method or processing technology.
This patent provides a kind of novel surface and spends mild steel galvanizing by dipping kirsite containing Nb without zinc.Contained by controlling lithium
It measures and adds trace element simultaneously, to greatly improve forming core of the zinc liquid of surface of low-carbon steel in solidification and grow up.In control zinc
The formation and roughening of flower and harmful phase, and the mechanical property of existing dip galvanized is maintained simultaneously.It is contemplated that such alloy
Industrialization can obtain great economic and social benefit.In the near future, as more engineer application fields are expanded, such
Novel alloy will be used widely in more galvanizings by dipping.
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 mild steel galvanizing by dipping kirsite containing Mn without zinc.The development of the alloy can solve industrial galvanizing by dipping
The phenomenon that zinc flower in plating piece surface generates in production.The characteristics of also having production cost low, being convenient for large-scale production.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of resistance to oxidation spends mild steel galvanizing by dipping kirsite containing Mn without zinc.By weight percentage, the group of alloy becomes：
Li： 0.4-1.0wt.%,Mn:1.0-2.0wt.%,Ti:0.5-1.0wt.%,Ge：1.0-1.4wt.%, Sc:0.2-0.4wt.%,
Th：0.2-0.4wt.%, 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.
Above-mentioned resistance to oxidation spends the preparation method of mild steel galvanizing by dipping kirsite containing Mn without zinc, includes the following steps：It will
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
Alloy solution is formed, and is sufficiently stirred 10 minutes or so using electromagnetic agitation effect；Alloy liquid is quiet in the heat preservation of 500-600 degree
It sets to be cast to after ten minutes in the same level equipment of heat top and carries out semi-continuous casting into required billet, it is 5- that ingot casting, which moves down speed,
10m/min.The ingot casting can be handled for the galvanizing by dipping of subsequent handling to be protected to steel wire as galvanizing by dipping raw material
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 provides a kind of solution of materialogy for the generation of current mild steel galvanizing by dipping zinc flower.
The kirsite has extremely excellent resistance to volatilization and oxidation resistent susceptibility, can reach in 400-800 degree temperature ranges in air
5 hours are stood under environment without significantly aoxidizing.The melt treatments process such as the liquid alloy is being stirred, is being blown
In, after its skin covering of the surface is destroyed because being vigorously stirred, energy rapid regeneration successfully hinders 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 surface of low-carbon steel 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）Galvanized sheet is divided by appearance pattern to be had zinc flower and spends two kinds without zinc.General zinc layers get over Gao Yuegui, identical zinc
Layer has Hua Gui without flower ratio.Consider from the market demand, production is high without zinc flower prod economic well-being of workers and staff.The alloy protected using this patent,
The hot dip galvanized product of no zinc flower can be produced on conventional hot dip zinc production line.Under desert Environment, the material
The oxidation rate of material is 2.0 × 10-4Mm/.Thus under desert climate, the material can use safely 30 years or more without
Apparent oxidative phenomena occurs.In comparison, the zinc coat of common hot-dip galvanizing alloy general work longevity under desert Environment
Life is 20 years or so.
Specific implementation mode
Embodiment 1
One kind spending mild steel galvanizing by dipping kirsite containing Mn using resistance to oxidation in 360-450 degree without zinc.By weight percentage,
The chemical composition of alloy is：Li： 0.5wt.%,Mn:1.2wt.%,Ti:0.6wt.%,Ge：1.2wt.%, Sc:0.3wt.%, Th：
0.2wt.%, surplus are zinc.The preparation method of alloy：As above the raw material matched is added in the electric induction furnace of atmosphere protection, and
Using silicon carbide crucible；Sensing heating forms alloy solution to 500-600 degree, and is sufficiently stirred 10 points using electromagnetic agitation effect
Clock or so；By alloy liquid 500-600 degree heat preservation stand be cast to after ten minutes heat top same level equipment in carry out it is semicontinuous
It is cast as required billet, it is 5-10m/min that ingot casting, which moves down speed,.The ingot casting can regard galvanizing by dipping raw material for follow-up
The galvanizing by dipping of process handles to carry out protection operation to steel wire, and the wherein operating temperature of galvanizing by dipping is 360-450 degree, hot dipping
Time is 30-40 seconds.
The kirsite has extremely excellent resistance to volatilization and oxidation resistent susceptibility, can reach in 400-800 degree temperature ranges
It is interior that 5 hours are stood under atmospheric environment without significantly aoxidizing.The liquid alloy is being stirred, is being blown etc. at melts
During reason, after its skin covering of the surface is destroyed because being vigorously stirred, energy rapid regeneration successfully hinders the oxidation and volatilization of alloy.It adopts
Zinc-plated with this patent uses alloy, under the low temperature environment of 360-450 degree, so that it may with interior in surface of low-carbon steel in 30-40 seconds
The coating that thickness is 50-80 microns in hot-dip.Since operating temperature is low, the hot dipping time is short, and energy-saving effect is apparent.Convenient for worker
Operation, year consuming fund is also less, for the prefered method in galvanizing by dipping production.The alloy protected using this patent, Ke Yi
The hot dip galvanized product of no zinc flower can be produced on conventional hot dip zinc production line.Under desert Environment, the oxygen of the material
It is 2.0 × 10 to change speed-4Mm/.Thus under desert climate, which can use 30 years or more safely without apparent
Oxidative phenomena occurs.In comparison, the zinc coat of common hot-dip galvanizing alloy general working life under desert Environment is 20
Year or so.
Embodiment 2
One kind spending mild steel galvanizing by dipping kirsite containing Mn using resistance to oxidation in 360-450 degree without zinc.By weight percentage,
The chemical composition of alloy is：Li： 0.8wt.%,Mn:1.2wt.%,Ti:0.8wt.%,Ge：1.2wt.%, Sc:0.2wt.%, Th：
0.3wt.%, surplus are zinc.The preparation method of alloy：As above the raw material matched is added in the electric induction furnace of atmosphere protection, and
Using silicon carbide crucible；Sensing heating forms alloy solution to 500-600 degree, and is sufficiently stirred 10 points using electromagnetic agitation effect
Clock or so；By alloy liquid 500-600 degree heat preservation stand be cast to after ten minutes heat top same level equipment in carry out it is semicontinuous
It is cast as required billet, it is 5-10m/min that ingot casting, which moves down speed,.The ingot casting can regard galvanizing by dipping raw material for follow-up
The galvanizing by dipping of process handles to carry out protection operation to steel wire, and the wherein operating temperature of galvanizing by dipping is 360-450 degree, hot dipping
Time is 30-40 seconds.
The kirsite has extremely excellent resistance to volatilization and oxidation resistent susceptibility, can reach in 400-800 degree temperature ranges
It is interior that 5 hours are stood under atmospheric environment without significantly aoxidizing.The liquid alloy is being stirred, is being blown etc. at melts
During reason, after its skin covering of the surface is destroyed because being vigorously stirred, energy rapid regeneration successfully hinders the oxidation and volatilization of alloy.It adopts
Zinc-plated with this patent uses alloy, under the low temperature environment of 360-450 degree, so that it may with interior in surface of low-carbon steel in 30-40 seconds
The coating that thickness is 50-80 microns in hot-dip.Since operating temperature is low, the hot dipping time is short, and energy-saving effect is apparent.Convenient for worker
Operation, year consuming fund is also less, for the prefered method in galvanizing by dipping production.The alloy protected using this patent, Ke Yi
The hot dip galvanized product of no zinc flower can be produced on conventional hot dip zinc production line.Under desert Environment, the oxygen of the material
It is 2.0 × 10 to change speed-4Mm/.Thus under desert climate, which can use 30 years or more safely without apparent
Oxidative phenomena occurs.In comparison, the zinc coat of common hot-dip galvanizing alloy general working life under desert Environment is 20
Year or so.
Embodiment 3
One kind spending mild steel galvanizing by dipping kirsite containing Mn using resistance to oxidation in 360-450 degree without zinc.By weight percentage,
The chemical composition of alloy is：Li： 0.5wt.%,Mn:1.2wt.%,Ti:0.6wt.%,Ge：1.2wt.%, Sc:0.2wt.%, Th：
0.3wt.%, surplus are zinc.The preparation method of alloy：As above the raw material matched is added in the electric induction furnace of atmosphere protection, and
Using silicon carbide crucible；Sensing heating forms alloy solution to 500-600 degree, and is sufficiently stirred 10 points using electromagnetic agitation effect
Clock or so；By alloy liquid 500-600 degree heat preservation stand be cast to after ten minutes heat top same level equipment in carry out it is semicontinuous
It is cast as required billet, it is 5-10m/min that ingot casting, which moves down speed,.The ingot casting can regard galvanizing by dipping raw material for follow-up
The galvanizing by dipping of process handles to carry out protection operation to steel wire, and the wherein operating temperature of galvanizing by dipping is 360-450 degree, hot dipping
Time is 30-40 seconds.
The kirsite has extremely excellent resistance to volatilization and oxidation resistent susceptibility, can reach in 400-800 degree temperature ranges
It is interior that 5 hours are stood under atmospheric environment without significantly aoxidizing.The liquid alloy is being stirred, is being blown etc. at melts
During reason, after its skin covering of the surface is destroyed because being vigorously stirred, energy rapid regeneration successfully hinders the oxidation and volatilization of alloy.It adopts
Zinc-plated with this patent uses alloy, under the low temperature environment of 360-450 degree, so that it may with interior in surface of low-carbon steel in 30-40 seconds
The coating that thickness is 50-80 microns in hot-dip.Since operating temperature is low, the hot dipping time is short, and energy-saving effect is apparent.Convenient for worker
Operation, year consuming fund is also less, for the prefered method in galvanizing by dipping production.The alloy protected using this patent, Ke Yi
The hot dip galvanized product of no zinc flower can be produced on conventional hot dip zinc production line.Under desert Environment, the oxygen of the material
It is 2.0 × 10 to change speed-4Mm/.Thus under desert climate, which can use 30 years or more safely without apparent
Oxidative phenomena occurs.In comparison, the zinc coat of common hot-dip galvanizing alloy general working life under desert Environment is 20
Year or so.
Claims (3)
1. a kind of resistance to oxidation spends mild steel galvanizing by dipping kirsite containing Mn without zinc；According to weight percent, the ingredient of the alloy
For：Li： 0.4-1.0wt.%,Mn:1.0-2.0wt.%,Ti:0.5-1.0wt.%,Ge：1.0-1.4wt.%, Sc:0.2-
0.4wt.%, Th：0.2-0.4wt.%, surplus are zinc.
2. resistance to oxidation spends mild steel galvanizing by dipping kirsite containing Mn without zinc 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 5-10m/min to move down speed.
3. resistance to oxidation spends mild steel galvanizing by dipping kirsite containing Mn without zinc according to claim 1, it is characterised in that include
Following procedure of processing：The ingot casting can be handled to carry out steel wire as galvanizing by dipping raw material for the galvanizing by dipping of subsequent handling
Protection operation, the wherein operating temperature of galvanizing by dipping are 360-450 degree, and the hot dipping time is 30-40 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810422849.6A CN108441679A (en) | 2018-05-05 | 2018-05-05 | Resistance to oxidation spends mild steel galvanizing by dipping kirsite containing Mn without zinc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810422849.6A CN108441679A (en) | 2018-05-05 | 2018-05-05 | Resistance to oxidation spends mild steel galvanizing by dipping kirsite containing Mn without zinc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108441679A true CN108441679A (en) | 2018-08-24 |
Family
ID=63202143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810422849.6A Withdrawn CN108441679A (en) | 2018-05-05 | 2018-05-05 | Resistance to oxidation spends mild steel galvanizing by dipping kirsite containing Mn without zinc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108441679A (en) |
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2018
- 2018-05-05 CN CN201810422849.6A patent/CN108441679A/en not_active Withdrawn
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180824 |
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| WW01 | Invention patent application withdrawn after publication |