CN108018512B - A kind of alloyed hot-dip galvanized steel sheet and its manufacturing method with excellent formability - Google Patents
A kind of alloyed hot-dip galvanized steel sheet and its manufacturing method with excellent formability Download PDFInfo
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- CN108018512B CN108018512B CN201610928111.8A CN201610928111A CN108018512B CN 108018512 B CN108018512 B CN 108018512B CN 201610928111 A CN201610928111 A CN 201610928111A CN 108018512 B CN108018512 B CN 108018512B
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- 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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- 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
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- 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
- C23C2/40—Plates; Strips
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- 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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/68—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous solutions with pH between 6 and 8
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- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
- C23C28/321—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer with at least one metal alloy layer
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- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
- C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
- C23C28/3225—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only with at least one zinc-based layer
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- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
Abstract
A kind of alloyed hot-dip galvanized steel sheet and its manufacturing method with excellent formability, the hot-dip galvanizing sheet steel are followed successively by cold-rolled steel sheet, alloyed hot-dip zinc coating, solid lubricant layer and Rust Preventing Oil Film from the bottom up；Wherein, solid lubricant layer is mainly made of Zn sulfide and Fe sulfide, and the weight of Zn sulfide and Fe sulfur element is 1~40mg/m2The solid lubricant layer can improve mobility of the alloyed hot-dip galvanized steel sheet in punch process forming process, the stamping formabilily of alloyed hot-dip galvanized steel sheet is improved, viscous zinc and powder of detached phenomenon of the alloyed hot-dip galvanized steel sheet in stamping process are eliminated or mitigate.Alloyed hot-dip galvanized steel sheet of the invention has good surface lubrication, good resistance to chalking, is maintaining outside as the original performance of automobile body-used steel plate, also shapes performance with good.
Description
Technical field
The invention belongs to hot-dip galvanizing sheet steel fields, and in particular to a kind of with the alloyed zinc hot dip galvanized of excellent formability
Steel plate and its manufacturing method.
Background technique
Automobile, especially car are very high with material requirement to it, it is desirable that it is with high surface quality, high corrosion resistance
Can and good it shape performance.Alloyed hot-dip galvanized steel sheet has superior corrosion resistance and surface quality, and
Good weldability and coating are widely used in all kinds of automotive body panels.
The formability of alloyed hot-dip galvanized steel sheet is influenced by Coating composition (Fe content), coating phase composition.Work as alloy
When the coating iron content of change hot-dip galvanizing sheet steel is lower, coating surface has more ζ phase, because ζ phase hardness is lower, when shaping
Frictional force between mold is big, and its frictional behavior is unstable, the viscous zinc problem that is easy to produce mold, these affect steel plate
Formability, in some instances it may even be possible to steel plate when punching press be caused to crack.And when coating iron content is high, coating surface is mainly δ phase (ζ
Mutually reduce, even without), coating surface hardness is improved at this time, but simultaneously because coating Fe content height, steel plate and plating stratum boundary
There is Γ phase in face, when Γ phase increases, will lead to steel plate Rating Technologies of Galvanneal Coating in forming process and falls off, this not only influences the table of stamping parts
Face quality also influences the formability of steel plate, in some instances it may even be possible to steel plate when punching press be caused to crack.
Press formability to solve above-mentioned alloyed hot-dip galvanized steel sheet is unstable, mold glues zinc and powder of detached is asked
Topic, in Japanese Patent Laid-Open 1-319661 bulletin, proposes the re-plating one in hot galvanizing or alloyed hot-dip zinc layers
The iron-based alloy layer of layer hard.Although this technology can preferably solve the above problems, the method need in hot galvanizing or
Make further electroplating processes after hot-dip galvanized alloy, not only complex procedures, but also production cost is also high.
In Chinese patent CN1207424C, a kind of alloying that can obtain good sliding property and chalking resistance is provided
The production technology of hot-dip galvanizing sheet steel.The technology, which uses, contacts zinc coat and high-temperature vapor, or in 20% or more oxygen concentration
Heated in atmosphere, or in the oxidizing agent solution containing hydrogen peroxide, nitric acid oxidation the methods of in the coating table Jing Guo skin-pass
A certain amount of zinc oxide layer is formed on face, so as to improve the sliding property and chalking resistance of alloyed hot-dip galvanized steel sheet.According to this
Technology, steel plate complete hot-dip galvanized alloy and be adjusted rolling after, coating surface formed zinc oxide layer before, need to adopt
With a process (as immerse sodium hydroxide solution in handle) removal alloying when generate, coating is still present in after rolling
The oxide on surface, while the Several Thiourea Derivatives on Zinc Plate Surface after alloying also being required to have a certain amount of ζ phase, it is otherwise difficult to reach the invention
Effect.
A kind of alloyed hot-dip galvanized steel sheet having excellent formability and its system are disclosed in Chinese patent CN102666903A
Make method.The art solutions contain Coating composition appropriate by controlling alloyed hot-dip galvanized steel sheet, and in coating surface
The film for forming the composite oxides containing Mn, P and water-soluble P-compound improves Sheet Forming Ability purpose to reach.But even if
It is operated according to the technical solution that the patent provides, the alloyed zinc hot dip galvanized steel containing Mn, P composite oxide film of acquisition
Plate, skin-friction coefficient is still higher, and the mobility of steel plate is still not ideal enough when shaping.
Chinese patent CN102888578A discloses a kind of production of hot-dip galvanizing sheet steel with good surface frictional behavior
Method, to hot pure zinc plating surface of steel plate frictional behavior is improved, improve its formability has preferably the art solutions
Effect.But for alloyed hot-dip galvanized steel sheet, which does not have apparent effect then.
Summary of the invention
The purpose of the present invention is to provide a kind of alloyed hot-dip galvanized steel sheet with excellent formability and its manufactures
Method, the alloyed hot-dip galvanized steel sheet have good surface lubrication, good resistance to chalking, are maintaining as Automobile
Outside the original performance of body steel plate, performance also is shaped with good.
In order to achieve the above objectives, technical scheme is as follows:
A kind of alloyed hot-dip galvanized steel sheet with excellent formability is followed successively by cold-rolled steel sheet from the bottom up, closes
Aurification hot dip galvanizing coating, solid lubricant layer and Rust Preventing Oil Film；
Wherein, the chemical component weight percentage of the alloyed hot-dip zinc coating are as follows: Al 0.05~0.2%, Fe 5~
13%, surplus is Zn and inevitable impurity；The solid lubricant layer contains Zn sulfide and Fe sulfide, Zn sulfide and
S element total weight in Fe sulfide is 1~40mg/m2, wherein the molar ratio of Fe sulfide and Zn sulfide is 1:20~1:
5。
Preferably, in the solid lubricant layer, the S element total weight in Zn sulfide and Fe sulfide is 2~20mg/
m2, wherein the molar ratio of Fe sulfide and Zn sulfide is 1:13~1:7.
Preferably, in the solid lubricant layer, the S element total weight in Zn sulfide and Fe sulfide is 4~10mg/
m2, wherein the molar ratio of Fe sulfide and Zn sulfide is 1:11~1:8.
Further, the ingredient of the solid lubricant layer is other than being mainly Zn sulfide and Fe sulfide, also containing other
Material composition, for example, including but not limited to the oxide of Zn, phosphate, sulfate, the oxide of Fe, phosphate and sulfate
One of or it is a variety of.
Further, the total mole number of the oxide of the Zn or Fe, phosphate and sulfate and aforementioned Zn sulfide and
The ratio between total mole number of Fe sulfide is less than 1.
Further, the Rust Preventing Oil Film of the solid lubrication layer surface can be the anti-rust and lubrication of conventionally used commercialization
Oil, oil film weight are 0.1~3g/m2。
The institutional framework (ingredient of coating and the phase group that shape performance and depend on coating of alloyed hot-dip galvanized steel sheet
At).It, at present can not be merely by control Coating composition, phase group due to the characteristic of alloyed hot-dip galvanized steel sheet zinc coat phase structure
At come the formability that further improves alloyed hot-dip galvanized steel sheet.
Alloyed hot-dip galvanized steel sheet of the present invention is maintaining outside as the original performance of automobile body-used steel plate, is also having
It is good to shape performance, there is good surface lubrication and good resistance to chalking.The alloyed hot-dip galvanized steel sheet
Well processed forming property is to make further surface treatment to its surface again after handling by hot-dip galvanized alloyization to realize.
Specifically, good processability alloyed hot-dip galvanized steel sheet composition of the invention is described as follows:
Cold-rolled steel sheet in the present invention is usually punching press IF steel.
In the present invention, alloyed hot-dip zinc coating in the surface of cold-rolled steel plate, if Al content is too low in Coating composition,
It is, for example, less than 0.05% mass percent, then alloyed zinc hot dip galvanized binding force of cladding material can be caused to decline；If Coating composition Al content
It is excessively high, it is greater than 0.2% mass percent, then is difficult to form alloyed hot-dip zinc coating or coating alloying is incomplete；
It is, for example, less than 5% mass percent, then the alloying of coating is incomplete, in coating surface if Fe content is too low in Coating composition
There are pure zinc phase (η phases), adversely affect to the performance that shapes of steel plate；If Coating composition Fe too high levels, are greater than
13% mass percent causes coating that dusting occurs de- then due to that can form more Γ phase at coating/cold-rolled steel sheet interface
It falls.
In the present invention, solid lubricant layer on the alloyed hot-dip Zinc Deposit, mainly by the sulfide group of Zn, Fe
At Zn sulfide and Fe sulfide therein have good solid lubricant effect, play table during Steel Sheet
Face lubricating action, playing improves alloyed hot-dip galvanized steel sheet mobility in punch process forming process, improves alloyed hot-dip
The work that zinc and powder of detached are glued in alloyed hot-dip galvanized steel sheet stamping process is eliminated or mitigated to zinc Steel Sheet performance
With.
If the Zn sulfide and Fe sulfide weight are less than 1mg/m2(in terms of S), then the lubricant effect played is limited, no
It is enough to improve the stamping formabilily of alloyed hot-dip galvanized steel sheet；If the Zn sulfide and Fe sulfide weight are greater than 40mg/
m2(in terms of S), the then lubricant effect played reach saturation state, at the same excessive Zn, Fe sulfide to the welding performance of steel plate,
Coating performance can be brought a negative impact.
In addition, according to the present invention, the molar ratio of Fe sulfide and Zn sulfide is limited to 1:20 in the solid lubricant layer
~1:5.If the molar ratio of the Fe sulfide and Zn sulfide is less than 1:20, the lubricant effect that the solid lubricant layer plays
Decline, the effect for improving alloyed hot-dip galvanized steel sheet stamping formabilily are unobvious；If the Fe sulfide and Zn sulfide
Molar ratio is greater than 1:5, then alloyed zinc hot dip galvanized binding force of cladding material decline at this time, is easy to happen powder of detached, i.e. alloying heat
The formability of galvanized steel plain sheet will deteriorate.
The present invention is coated with Rust Preventing Oil Film appropriate in the solid lubrication layer surface, and the alloyed hot-dip can be improved
Zinc steel plate corrosion resistance, and it is possible to be further improved its formability.
The manufacturing method of alloyed hot-dip galvanized steel sheet with excellent formability of the invention, comprising the following steps:
1) cold-rolled steel sheet is subjected to hot galvanizing with conventional hot dip galvanizing process, and carries out Alloying Treatment, obtain alloying heat
Galvanized steel plain sheet；Wherein, the chemical component weight percentage of galvanneal coating are as follows: Al 0.05~0.2%, Fe 5~13%, surplus
For Zn and inevitable impurity；
2) make alloyed hot-dip galvanized steel sheet immersion room temperature at normal temperature contains S2-Aqueous solution, makes galvanneal coating surface and contains
S2-Aqueous solution contacts 1~60 second, forms solid lubricant layer in alloying Several Thiourea Derivatives on Zinc Plate Surface；
3) rust preventive lubricating oil is coated on the solid lubricant layer of surface of steel plate.
Further, described to contain S in step 2)2-Aqueous solution is the neutrality of alkali metal sulphide or alkaline earth sulfide
Or slightly acidic water solution, S in the solution2-Content is 0.2~10g/L.
Further, described to contain S2-F can be contained in aqueous solution-Ion.
In the manufacturing method of the present invention, described to contain S2-A small amount of F can be contained in aqueous solution-Ion, can be with accelerating solid
The formation of lubricant layer, it is described containing S by controlling2-S in aqueous solution2-Content and alloyed hot-dip galvanized steel sheet (coating surface) with
Containing S2-The time of contact of aqueous solution obtains solid lubricant layer of the present invention.
Compared with prior art, the invention has the following advantages:
Surface treatment of the invention is a kind of inorganic surface solid lubricating processing, by the surface treatment, in alloying
Hot dip galvanizing steel plate coating surface forms one layer thin of inoganic solids film, which plays surface in stamping process
Lubricating action improves mobility of the alloyed hot-dip galvanized steel sheet in punch process forming process, to improve alloyed hot-dip
The stamping formabilily of zinc steel plate, the viscous zinc and dusting of elimination or mitigation alloyed hot-dip galvanized steel sheet in stamping process are de-
Fall phenomenon.
Meanwhile to steel plate, the phosphorating treatment before the paint after automobile factory is stamping does not have any unfavorable shadow to the inoganic solids film
It rings.
The present invention is coated with Rust Preventing Oil Film appropriate in the solid lubrication layer surface, and the alloyed hot-dip can be improved
The corrosion resistance of zinc steel plate, and it is possible to be further improved its formability.
Detailed description of the invention
Fig. 1 is that the alloyed hot-dip galvanized steel sheet of the embodiment of the present invention 3 and the surface friction characteristics of comparative example 2 compare.
Specific embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment
Cold Rolled IF Sheet is subjected to hot galvanizing according to common hot dip galvanizing process, and carries out Alloying Treatment, obtains alloy
Change hot-dip galvanizing sheet steel, makes the ingredient (weight percent) of galvanneal coating: Al 0.05~0.2%, Fe 5~13%, surplus
For Zn and inevitable impurity.Make alloyed hot-dip galvanized steel sheet immersion room temperature at normal temperature contains S2-Aqueous solution, in alloying
Several Thiourea Derivatives on Zinc Plate Surface forms the solid lubricant layer of different weight sulfide, then coats suitable rust preventive lubricating oil in surface of steel plate,
Performance evaluation is carried out after placing 24 hours at room temperature, referring to table 1.
With same alloyed hot-dip galvanized steel sheet (without with contain S2-Aqueous solution contact, or fail to be formed contact
The solid lubricant layer of sufficient amount) sample as a comparison case, identical rust preventive lubricating oil is coated with identical condition, is put at room temperature
Performance evaluation is carried out after setting 24 hours.
Performance evaluation:
Skin-friction coefficient: surface of steel plate coefficient of friction is measured using plate sliding scale.
Measuring condition are as follows: ram pressures 2000N, sliding speed 200mm/min, sliding distance 100mm.With steel plate table
The lubricant effect of face coefficient of friction evaluation surface of steel plate solid lubricant layer.Coefficient of friction is smaller, then lubricant effect is better, improves and closes
The effect of aurification hot-dip galvanizing sheet steel stamping formabilily is better.
Phosphatization adaptability: using phosphating process used in certain automobile factory, to alloyed hot-dip galvanized steel sheet of the present invention and right
Proportional test bar carries out phosphatization test under the same conditions.
Experiment condition are as follows: phosphating solution is to be afraid of card PB3020 phosphating solution, and the 2 minutes time of 50 DEG C of skimming temp, table tune 0.5 divides
Clock, 3 minutes time of 40 DEG C of phosphatization temperature.The crystallite size and uniformity of scanning electron microscopic observation phosphating coat are used after phosphatization test,
If phosphating coat crystal size is no more than 10 μm and uniform, reviewing its phosphatization adaptability is OK.Evaluation result is as shown in table 1.
Table 1
Seen from table 1, alloyed hot-dip galvanized steel sheet of the invention is compared with the alloyed hot-dip galvanized steel sheet of comparative example, table
Face coefficient of friction is decreased obviously, this shows that technical solution of the present invention can improve the punching press lubricity of alloyed hot-dip galvanized steel sheet
Can, and there is good phosphatization adaptability.
Frictional behavior comparison: the alloyed hot-dip galvanized steel sheet of embodiment 3 and comparative example 2 is subjected to frictional behavior comparison, knot
Fruit is referring to Fig. 1, and abscissa is Rubbing number in figure, fraction time when can be tested with qualitative characterization, i.e. Rubbing number more it is big then
Qualitative representation fraction time is longer.
Result illustrates that the alloyed hot-dip galvanized steel sheet of comparative example 2, skin-friction coefficient is with fraction time in Fig. 1
Extend and increased dramatically, that is, shows that the frictional behavior of the alloyed hot-dip galvanized steel sheet is very unstable in friction process, in reality
It is unstable that stamping formabilily is shown as in stamping.And the alloyed hot-dip galvanized steel sheet of the embodiment of the present invention 3 then shows
Very stable for frictional behavior, this shows that technical solution of the present invention not only improves alloyed hot-dip galvanized steel sheet in stamping process
In lubricity and mobility, also improve the stamping stability of alloyed hot-dip galvanized steel sheet.
Claims (8)
1. a kind of alloyed hot-dip galvanized steel sheet with excellent formability, is followed successively by cold-rolled steel sheet, alloy from the bottom up
Change hot dip galvanizing coating, solid lubricant layer and Rust Preventing Oil Film；
Wherein, the chemical component weight percentage of the alloyed hot-dip zinc coating are as follows: Al 0.05~0.2%, Fe 5~
13%, surplus is Zn and inevitable impurity；
The solid lubricant layer contains Zn sulfide and Fe sulfide, and the S element total weight in Zn sulfide and Fe sulfide is 1
~40mg/m2, wherein the molar ratio of Fe sulfide and Zn sulfide is 1:20~1:5；
The Rust Preventing Oil Film weight of the solid lubrication layer surface is 0.1~3g/m2。
2. the alloyed hot-dip galvanized steel sheet according to claim 1 with excellent formability, which is characterized in that described
In solid lubricant layer, the S element total weight in Zn sulfide and Fe sulfide is 2~20mg/m2。
3. the alloyed hot-dip galvanized steel sheet according to claim 1 with excellent formability, which is characterized in that described
In solid lubricant layer, the molar ratio of Fe sulfide and Zn sulfide is 1:13~1:7.
4. the alloyed hot-dip galvanized steel sheet according to claim 1 with excellent formability, which is characterized in that described
In solid lubricant layer, the S element total weight in Zn sulfide and Fe sulfide is 4~10mg/m2；Fe sulfide and Zn sulfide
Molar ratio be 1:11~1:8.
5. the alloyed hot-dip galvanized steel sheet according to claim 1-4 with excellent formability, feature
It is, in the solid lubricant layer also oxide containing Zn, phosphate, sulfate, the oxide of Fe, phosphate and sulfate
It is one or more.
6. the alloyed hot-dip galvanized steel sheet according to claim 5 with excellent formability, which is characterized in that described
The total mole number of the oxide of Zn or Fe, phosphate and sulfate and wherein the ratio between Zn sulfide and the total mole number of Fe sulfide
Less than 1.
7. a kind of manufacturing method of the alloyed hot-dip galvanized steel sheet with excellent formability, comprising the following steps:
1) cold-rolled steel sheet is subjected to hot galvanizing with conventional hot dip galvanizing process, and carries out Alloying Treatment, obtained alloyed zinc hot dip galvanized
Steel plate；Wherein, the chemical component weight percentage of galvanneal coating are as follows: Al 0.05~0.2%, Fe 5~13%, surplus Zn
And inevitable impurity；
2) make alloyed hot-dip galvanized steel sheet immersion room temperature at normal temperature contains S2-Aqueous solution makes galvanneal coating surface and contains S2-Water
Solution contacts 1~60 second, forms solid lubricant layer in alloying Several Thiourea Derivatives on Zinc Plate Surface；It is described to contain S2-Aqueous solution is alkali metal vulcanization
The neutrality or slightly acidic water solution of object or alkaline earth sulfide, S in the solution2-Content is 0.2~10g/L；
3) rust preventive lubricating oil is coated on the solid lubricant layer of surface of steel plate.
8. the manufacturing method of the alloyed hot-dip galvanized steel sheet with excellent formability as claimed in claim 7, feature
It is, it is described to contain S2-Contain F in aqueous solution-Ion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610928111.8A CN108018512B (en) | 2016-10-31 | 2016-10-31 | A kind of alloyed hot-dip galvanized steel sheet and its manufacturing method with excellent formability |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610928111.8A CN108018512B (en) | 2016-10-31 | 2016-10-31 | A kind of alloyed hot-dip galvanized steel sheet and its manufacturing method with excellent formability |
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| Publication Number | Publication Date |
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| CN108018512A CN108018512A (en) | 2018-05-11 |
| CN108018512B true CN108018512B (en) | 2019-10-25 |
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| CN201610928111.8A Active CN108018512B (en) | 2016-10-31 | 2016-10-31 | A kind of alloyed hot-dip galvanized steel sheet and its manufacturing method with excellent formability |
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Citations (3)
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|---|---|---|---|---|
| JP2011214029A (en) * | 2010-03-31 | 2011-10-27 | Jfe Steel Corp | Galvanized steel sheet superior in slidability |
| CN104494232A (en) * | 2014-12-18 | 2015-04-08 | 马钢(集团)控股有限公司 | Organic solid lubrication galvanized steel plate and manufacturing method thereof |
| CN104755655A (en) * | 2012-10-31 | 2015-07-01 | 杰富意钢铁株式会社 | Hot-pressing steel plate, hot-pressing member and manufacturing method for the hot-pressing member |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011214029A (en) * | 2010-03-31 | 2011-10-27 | Jfe Steel Corp | Galvanized steel sheet superior in slidability |
| CN104755655A (en) * | 2012-10-31 | 2015-07-01 | 杰富意钢铁株式会社 | Hot-pressing steel plate, hot-pressing member and manufacturing method for the hot-pressing member |
| CN104494232A (en) * | 2014-12-18 | 2015-04-08 | 马钢(集团)控股有限公司 | Organic solid lubrication galvanized steel plate and manufacturing method thereof |
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| 无机固体润滑处理热镀锌钢板的表面特性;温乃盟 等;《宝钢技术》;20101231(第1期);39-42 * |
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