CN108441682A - Energy-saving high silicon content steel surface galvanizing by dipping kirsite containing Pd - Google Patents
Energy-saving high silicon content steel surface galvanizing by dipping kirsite containing Pd Download PDFInfo
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- CN108441682A CN108441682A CN201810435534.5A CN201810435534A CN108441682A CN 108441682 A CN108441682 A CN 108441682A CN 201810435534 A CN201810435534 A CN 201810435534A CN 108441682 A CN108441682 A CN 108441682A
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- dipping
- galvanizing
- 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 energy-saving high silicon content steel surface galvanizing by dipping kirsite containing Pd and its processing technologys.According to weight percent, the ingredient of the alloy is：Li：0.4‑0.8wt.%,Sn:1.0‑3.0wt.%,Pd:1.5‑2.0wt.%,Co：1.2 1.8wt.%, Y:0.4‑0.8wt.%,Yb:0.1 0.2wt.%, 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
Energy-saving high silicon content steel surface galvanizing by dipping kirsite containing Pd.The alloy carries out high activity steel in this temperature range
When galvanizing by dipping, gained zinc coat not only has the mechanical property of common nonactive steel surface zinc coat, but also with production
It is at low cost, 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 energy-saving high silicon content steel surface galvanizing by dipping kirsite containing Pd.By weight percentage, the group of alloy becomes：
Li： 0.4-0.8wt.%,Sn:1.0-3.0wt.% ,Pd:1.5-2.0wt.%,Co：1.2-1.8wt.%, Y:0.4-0.8wt.%,
Yb:0.1-0.2wt.%, surplus are zinc.The weight that the kirsite loses in fusion process because of the reasons such as volatilization and formation clinker
Amount is in 1.0-2.0wt.% or so.
The preparation method of above-mentioned energy-saving high silicon content steel surface galvanizing by dipping kirsite containing Pd, includes the 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 is to 500-600
Degree forms alloy solution, and is sufficiently stirred 10 minutes or so using electromagnetic agitation effect；Alloy liquid is kept the temperature in 500-600 degree
Standing is cast in the same level equipment of heat top and carries out semi-continuous casting into required billet after ten minutes, and ingot casting moves down speed and is
5-10m/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
Shield 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.It is contemplated that the industrialization of such alloy can obtain
Great economic and social benefit, the high plating piece meaning of requirement for anticorrosion especially for bridge member and power tower etc is more
It is great.In the near future, as more engineer application fields are expanded, such novel alloy will be in more galvanizings by dipping
It is used widely.
Specific implementation mode
Embodiment 1
One kind using energy-saving high silicon content steel surface galvanizing by dipping kirsite containing Pd in 360-450 degree.By weight percentage
Meter, the chemical composition of alloy are：Li： 0.5wt.%,Sn:1.2wt.% ,Pd:1.8wt.%,Co：1.4wt.%, Y:0.5wt.%,
Yb:0.1wt.%, surplus are zinc.The preparation method of alloy：As above the raw material matched is added to the electric induction furnace of atmosphere protection
It is interior, and use silicon carbide crucible；Sensing heating forms alloy solution to 500-600 degree, and is fully stirred using electromagnetic agitation effect
It mixes 10 minutes or so；Alloy liquid is stood to be cast to after ten minutes in the same level equipment of heat top in the heat preservation of 500-600 degree and is carried out
At required billet, it is 5-10m/min that ingot casting, which moves down speed, for semi-continuous casting.The ingot casting can regard galvanizing by dipping raw material and use
It is handled in the galvanizing by dipping of subsequent handling to carry out protection operation to steel wire, the wherein operating temperature of 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.The material after to high silicon content active steel galvanizing by dipping, steel wire can in subsequent drawing deformation further undergauge,
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 having extremely
Outside excellent bond strength, also there is outstanding deformation plasticity.
Embodiment 2
One kind using energy-saving high silicon content steel surface galvanizing by dipping kirsite containing Pd in 360-450 degree.By weight percentage
Meter, the chemical composition of alloy are：Li： 0.6wt.%,Sn:1.5wt.% ,Pd:1.8wt.%,Co：1.5wt.%, Y:0.5wt.%,
Yb:0.1wt.%, surplus are zinc.The preparation method of alloy：As above the raw material matched is added to the electric induction furnace of atmosphere protection
It is interior, and use silicon carbide crucible；Sensing heating forms alloy solution to 500-600 degree, and is fully stirred using electromagnetic agitation effect
It mixes 10 minutes or so；Alloy liquid is stood to be cast to after ten minutes in the same level equipment of heat top in the heat preservation of 500-600 degree and is carried out
At required billet, it is 5-10m/min that ingot casting, which moves down speed, for semi-continuous casting.The ingot casting can regard galvanizing by dipping raw material and use
It is handled in the galvanizing by dipping of subsequent handling to carry out protection operation to steel wire, the wherein operating temperature of 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.The material after to high silicon content active steel galvanizing by dipping, steel wire can in subsequent drawing deformation further undergauge,
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 having extremely
Outside excellent bond strength, also there is outstanding deformation plasticity.
Embodiment 3
One kind using energy-saving high silicon content steel surface galvanizing by dipping kirsite containing Pd in 360-450 degree.By weight percentage
Meter, the chemical composition of alloy are：Li： 0.6wt.%,Sn:2.4wt.% ,Pd:1.8wt.%,Co：1.5wt.%, Y:0.5wt.%,
Yb:0.2wt.%, surplus are zinc.The preparation method of alloy：As above the raw material matched is added to the electric induction furnace of atmosphere protection
It is interior, and use silicon carbide crucible；Sensing heating forms alloy solution to 500-600 degree, and is fully stirred using electromagnetic agitation effect
It mixes 10 minutes or so；Alloy liquid is stood to be cast to after ten minutes in the same level equipment of heat top in the heat preservation of 500-600 degree and is carried out
At required billet, it is 5-10m/min that ingot casting, which moves down speed, for semi-continuous casting.The ingot casting can regard galvanizing by dipping raw material and use
It is handled in the galvanizing by dipping of subsequent handling to carry out protection operation to steel wire, the wherein operating temperature of 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.The material after to high silicon content active steel galvanizing by dipping, steel wire can in subsequent drawing deformation further undergauge,
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 having extremely
Outside excellent bond strength, also there is outstanding deformation plasticity.
Claims (3)
1. a kind of energy-saving high silicon content steel surface galvanizing by dipping kirsite containing Pd；According to weight percent, the alloy at
It is divided into：Li： 0.4-0.8wt.%,Sn:1.0-3.0wt.% ,Pd:1.5-2.0wt.%,Co：1.2-1.8wt.%, Y:0.4-
0.8wt.%, Yb:0.1-0.2wt.%, surplus are zinc.
2. energy-saving high silicon content steel surface galvanizing by dipping kirsite containing Pd according to claim 1, it is characterised in that packet
Include following steps：As above the raw material matched is added in the electric induction furnace of atmosphere protection, and uses silicon carbide crucible；Induction adds
Heat forms alloy solution to 500-600 degree, and is 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. energy-saving high silicon content steel surface galvanizing by dipping kirsite containing Pd according to claim 1, it is characterised in that packet
Containing following procedure of processing：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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810435534.5A CN108441682A (en) | 2018-05-09 | 2018-05-09 | Energy-saving high silicon content steel surface galvanizing by dipping kirsite containing Pd |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810435534.5A CN108441682A (en) | 2018-05-09 | 2018-05-09 | Energy-saving high silicon content steel surface galvanizing by dipping kirsite containing Pd |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108441682A true CN108441682A (en) | 2018-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810435534.5A Withdrawn CN108441682A (en) | 2018-05-09 | 2018-05-09 | Energy-saving high silicon content steel surface galvanizing by dipping kirsite containing Pd |
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2018
- 2018-05-09 CN CN201810435534.5A patent/CN108441682A/en not_active Withdrawn
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Application publication date: 20180824 |