CN108396184A - High silicon content steel galvanizing by dipping energy-saving corrosion-resisting type kirsite containing Os - Google Patents
High silicon content steel galvanizing by dipping energy-saving corrosion-resisting type kirsite containing Os Download PDFInfo
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- CN108396184A CN108396184A CN201810435545.3A CN201810435545A CN108396184A CN 108396184 A CN108396184 A CN 108396184A CN 201810435545 A CN201810435545 A CN 201810435545A CN 108396184 A CN108396184 A CN 108396184A
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- dipping
- galvanizing
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- silicon content
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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
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- 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 high silicon content steel galvanizing by dipping energy-saving corrosion-resisting type kirsites containing Os and its processing technology.According to weight percent, the ingredient of the alloy is：Li：1.5‑2.0wt.%,Os:0.4‑0.8wt.%,Ge:2.5‑3.0wt.%,In：3.0 3.4wt.%, Y:0.4‑0.8wt.%,Mn:1.2 1.4wt.%, surplus are zinc.Gained zinc coat has excellent mechanical property after the galvanizing by dipping alloy is used for high silicon content active steel.In addition, also have production temperature low, hot dipping time short advantage, the characteristics of 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 is easy to get rusty in empty gas and water or soil, or even damage completely.Steel loses caused by corrosion every year
Account for about the 1/10 of entire iron and steel output, on the other hand, to make steel product that there is certain specific function with piece surface, assigns simultaneously
The appearance of its decorative surface is given, so, generally it is handled by the way of zinc-plated.Galvanizing by dipping is a kind of effective metal
Anti-corrosion mode is mainly used on the metal structure facility of every profession and trade.Usual workpiece galvanizing by dipping is that steel are immersed 450 DEG C
Fused zinc in, coating is made of iron zinc intermetallic compound and outermost zinc layers, and alloy-layer is close and continuous.Due to making
Zinc layers are adhered on steel member surface, to play corrosion-resistant purpose.Since galvanizing is applied to industry by France in 1836,
Through the history for having in 1 hundred 40.However, hot dip Zn Cr coating is to be obtained in the late three decades with the rapid development of cold-strip steel
Extensive development is arrived.
Galvanizing by dipping has series of advantages:（1）It is covered on steel surface with thicker fine and close pure zinc layer, it can
To avoid the contact of steel substrate and any etchant solution, protect steel matrix from corrosion.In general atmosphere, zinc layers surface
One layer very thin and closely knit of zinc oxide film surface is formed, it is difficult to be dissolved in water, therefore play certain protective role to steel matrix.If
Zinc oxide is with after the insoluble zinc salt of other ingredient generations in air, then corrosion protection effect is more preferable.（2）With iron-zinc alloy layer, knot
Densification is closed, peculiar corrosion resistance is showed in maritime salt fog air and industrialness air；（3）Due to being firmly combined with, zinc-iron is mutual
It is molten, there is very strong wearability；（4）Since zinc has good ductility, alloy-layer and base steel adhesion-tight, therefore hot dip
Part can carry out the various moldings such as cold punching, rolling, wire drawing, bending without damaging coating；（5）After Batch Hot Dip Galvanizing, it is equivalent to
Primary annealing, can effectively improve the mechanical performance of steel matrix, eliminates stress when steel part molding welding, is conducive to steel knot
Component carries out turnery processing.
With the development of science and technology production, the field involved by galvanizing by dipping industry is more and more extensive.Currently, hot-dip
The application of zinc has spread each production and the research department of national economy.For example, machine manufacture, electronics, precision instrument, chemical industry,
Light industry, communications and transportation, weapons, space flight, atomic energy etc., are of great importance in national economy.
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.For silicon content in a certain range of activity
Steel, the presence of silicon cause the significant changes of zinc coat structure, form thickness without continuous compound phase, the discontinuous of alloy-layer causes
The quick generation of coating, after steel are suggested zinc bath, alloying reaction consumes zinc, is performed until temperature and drops to phase solidification point and is
Only.Surface free zinc layers phase factor consumption is no longer continuous, and the coating of formation is gloomy, super thick, poor adhesion.
Steel industry continuous casting technology is popularized, and so that siliceous deoxidation calmness and semi-killed steel is become galvanizing industry can not avoid
The problem of.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, hot dipping temperature is high and the hot dipping time is long, and plating piece is enabled to become
The tendency that shape even cracks is serious.
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
High silicon content steel galvanizing by dipping energy-saving corrosion-resisting type kirsite containing Os.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 with life
Produce it is at low cost, convenient for large-scale production the characteristics of.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of high silicon content steel galvanizing by dipping energy-saving corrosion-resisting type kirsite containing Os.By weight percentage, the composition of alloy
For：Li： 1.5-2.0wt.%,Os:0.4-0.8wt.% ,Ge:2.5-3.0wt.%,In：3.0-3.4wt.%, Y:0.4-
0.8wt.%, Mn:1.2-1.4wt.%, 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.
The preparation method of above-mentioned high silicon content steel galvanizing by dipping energy-saving corrosion-resisting type kirsite containing Os, including walk 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 15-20 seconds.
Compared with prior art, the present invention has the advantages that：
（1）Patent of the present invention provides a kind of novel solution for current high silicon content steel galvanizing by dipping with alloy.It should
Kirsite has extremely excellent resistance to volatilization and oxidation resistent susceptibility, can reach in 400-800 degree temperature ranges in big compression ring
5 hours are stood under border without significantly aoxidizing.During the melt treatments such as the liquid alloy being stirred, being blown,
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）The alloy can be well solved San Andreas Rift when silicon-containing active steel hot-dip, and coating surface is smooth, equal
It is even, beautiful.Coating is thinned, and can reduce use of the zinc-plated enterprise with zinc amount 20-30%, one layer of combination has been plated to galvanized part surface
The preferable coating of power, extends the service life of plating piece.
（3）The operating temperature of general galvanizing by dipping is 450-580 degree, and the galvanizing by dipping time is 30-60 seconds.Using this patent
It is zinc-plated use alloy, under the low temperature environment of 360-450 degree, so that it may with interior in high silicon content activity steel surface in 15-20 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.
（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 30-50% 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 marine environment, the corrosion rate of the material is
1.2×10-4Mm/.Thus under marine climate, which can use 30 years or more safely without apparent corrosion phenomenon
Occur.In comparison, the zinc coat of common hot-dip galvanizing alloy general working life under marine environment is 20 years or so.
（5）It is contemplated that the industrialization of such alloy can obtain great economic and social benefit, especially for bridge
The plating piece meaning that the requirement for anticorrosion of beam and power tower etc is high is more great.In the near future, as more multiple-project is answered
It is expanded with field, such novel alloy will be used widely in more galvanizings by dipping.
Specific implementation mode
Embodiment 1
One kind using high silicon content steel galvanizing by dipping energy-saving corrosion-resisting type kirsite containing Os in 360-450 degree.Percentage by weight
Than meter, the chemical composition of alloy is：Li： 1.5wt.%,Os:0.4wt.% ,Ge:2.5wt.%,In：3.0wt.%, Y:
0.4wt.%, Mn:1.2wt.%, 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 15-20 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.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, for the first choice in galvanizing by dipping production
Method.
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 marine environment, the corrosion rate of the material is 1.2 ×
10-4Mm/.Thus under marine climate, which can use safely 30 years or more occurs without apparent corrosion phenomenon.
In comparison, the zinc coat of common hot-dip galvanizing alloy general working life under marine environment is 20 years or so.
Embodiment 2
One kind using high silicon content steel galvanizing by dipping energy-saving corrosion-resisting type kirsite containing Os in 360-450 degree.Percentage by weight
Than meter, the chemical composition of alloy is：Li： 1.8wt.%,Os:0.5wt.% ,Ge:2.8wt.%,In：3.2wt.%, Y:
0.5wt.%, Mn:1.2wt.%, 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 15-20 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.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, for the first choice in galvanizing by dipping production
Method.
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 marine environment, the corrosion rate of the material is 1.2 ×
10-4Mm/.Thus under marine climate, which can use safely 30 years or more occurs without apparent corrosion phenomenon.
In comparison, the zinc coat of common hot-dip galvanizing alloy general working life under marine environment is 20 years or so.
Embodiment 3
One kind using high silicon content steel galvanizing by dipping energy-saving corrosion-resisting type kirsite containing Os in 360-450 degree.Percentage by weight
Than meter, the chemical composition of alloy is：Li： 1.6wt.%,Os:0.5wt.% ,Ge:2.8wt.%,In：3.2wt.%, Y:
0.6wt.%, Mn:1.3wt.%, 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 15-20 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.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, for the first choice in galvanizing by dipping production
Method.
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 marine environment, the corrosion rate of the material is 1.2 ×
10-4Mm/.Thus under marine climate, which can use safely 30 years or more occurs without apparent corrosion phenomenon.
In comparison, the zinc coat of common hot-dip galvanizing alloy general working life under marine environment is 20 years or so.
Claims (3)
1. a kind of high silicon content steel galvanizing by dipping energy-saving corrosion-resisting type kirsite containing Os；According to weight percent, the alloy
Ingredient is：Li： 1.5-2.0wt.%,Os:0.4-0.8wt.% ,Ge:2.5-3.0wt.%,In：3.0-3.4wt.%, Y:0.4-
0.8wt.%, Mn:1.2-1.4wt.%, surplus are zinc.
2. high silicon content steel galvanizing by dipping energy-saving corrosion-resisting type kirsite containing Os 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. high silicon content steel galvanizing by dipping energy-saving corrosion-resisting type kirsite containing Os 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 15-20 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810435545.3A CN108396184A (en) | 2018-05-09 | 2018-05-09 | High silicon content steel galvanizing by dipping energy-saving corrosion-resisting type kirsite containing Os |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810435545.3A CN108396184A (en) | 2018-05-09 | 2018-05-09 | High silicon content steel galvanizing by dipping energy-saving corrosion-resisting type kirsite containing Os |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108396184A true CN108396184A (en) | 2018-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810435545.3A Withdrawn CN108396184A (en) | 2018-05-09 | 2018-05-09 | High silicon content steel galvanizing by dipping energy-saving corrosion-resisting type kirsite containing Os |
Country Status (1)
| Country | Link |
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| CN (1) | CN108396184A (en) |
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2018
- 2018-05-09 CN CN201810435545.3A patent/CN108396184A/en not_active Withdrawn
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Application publication date: 20180814 |