CN103952653A - High-temperature-oxidization-resistant coating material for hot-stamped formed steel and hot-dipping plating technology - Google Patents
High-temperature-oxidization-resistant coating material for hot-stamped formed steel and hot-dipping plating technology Download PDFInfo
- Publication number
- CN103952653A CN103952653A CN201410156753.1A CN201410156753A CN103952653A CN 103952653 A CN103952653 A CN 103952653A CN 201410156753 A CN201410156753 A CN 201410156753A CN 103952653 A CN103952653 A CN 103952653A
- Authority
- CN
- China
- Prior art keywords
- hot
- formed steel
- coating
- hot press
- steel plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention discloses a high-temperature-oxidization-resistant coating material for hot-stamped formed steel and a hot-dipping plating technology. A plating solution comprises the following components in percentage by mass: 5.0-20.0% of Si, 0.5-10.0% of Ni, 0.1-12.0% of Ce, 0.1-2.0% of La, not more than 1.0% of Fe, and the balance of Al and inevitable impurities. According to the coating material, the grain size of the texture can be effectively refined by adding rare earth and other elements in the plating solution; the coating is an Al-Si-Ni-rare earth material, Al and Si elements are main components of the coating and are combined with ferrum to generate a ferro-silicon-aluminum phase and further improve the oxidization resistance capability, the melting point of aluminum silicon can be further improved by Ni, and the grain size of the coating can be refined through the rare earth elements; therefore, the coating has the characteristics that the high-temperature oxidization resistance performance is excellent, the surface is difficult to crack after hot-stamped forming, and the coating is not adhered to a mold. Elements in the coating obtained by adopting the technology are uniformly distributed and organized with high density, are closely combined with a substrate, thus having high high-temperature oxidization resistance performance; during heating process, the high-temperature-oxidization-resistant coating material does not stick a furnace bottom roll, a steel substrate and a stamping mold can be better protected.
Description
Technical field
The present invention relates to a kind of coating material and immersion plating technology, especially a kind of hot press-formed steel resistance to high temperature oxidation coating material and hot dipping ferryman skill.
Background technology
Hot press-formed steel belongs to the super-high strength steel that tensile strength exceedes 1500Mpa rank, adopt the mode of hot stamping directly to shape, be mainly used in the production of automobile high strength, difficult shaping component, can avoid that cold shaping is difficult to be shaped, resilience is large, the shortcoming such as accessory size and shape stability variation.But this steel plate is working condition harshness in the time of heating or thermoforming, when heating, easily produce iron scale, when punching press, iron scale is met cold easy damage mould, and the iron scale not coming off also needs to adopt shot-peening to remove simultaneously, increase cost of equipment maintenance, affect production efficiency.Therefore need to adopt resistance to high temperature oxidation, high lubricity, thermal conductivity function in the coating of one, thermoforming steel surface to be protected.
At present, hot press-formed steel overlay coating material mainly contains following several mode of production, a kind of mode that adopts thermospray is produced, by raw material grinds such as raw mineral materials, metal oxide, metal nanoparticle, boride and graphite, then be mixed into slurry with water, be coated in surface of steel plate after pretreatment, be cured at a certain temperature, form resistance to high temperature oxidation coating; The second adopts the mode of electroplating to produce, and steel plate is immersed in metal plating liquid, and steel plate goes out plating solution rear surface can form one deck flash plating, after coating solidifies, has stronger oxidation-resistance property after Overheating Treatment.The coating that first method obtains, advantage is the high temperature of anti-1000 DEG C of left and right, and shortcoming is that in coating, element distributes and organizes not too evenly, and surfaceness is high, is not suitable for doing the coating of hot press-formed steel.The production cost that the mode of electroplating is produced coating is high, and the easy contaminate environment of waste liquid.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of element distribution and homogeneous microstructure, energy consumption low, pollute little hot press-formed steel resistance to high temperature oxidation coating material and hot dipping ferryman skill
For solving the problems of the technologies described above, the quality percentage composition of solution composition that the present invention takes is: Si 5.0～20.0%, and Ni 0.5～10.0%, Ce 0.1～2.0%, La 0.1～2.0%, Fe≤1.0%, all the other are Al and inevitable impurity.
This is preferred, and the quality percentage composition of described solution composition is: Si 12.0%, and Ni 1.0%, Ce 0.8%, La 0.40%, Fe 0.4%, all the other are Al and inevitable impurity.
The following processing step of process using of the present invention:
(1) hot dip process operation: hot press-formed steel plate enters plating solution at 600～840 DEG C, 640～800 DEG C of bath temperatures, time 6～30s is crossed in hot dipping; The quality percentage composition of solution composition is: Si 5.0～20.0%, and Ni 0.5～10.0%, Ce 0.1～2.0%, La 0.1～2.0%, Fe≤1.0%, all the other are Al and inevitable impurity thereof;
(2) refrigerating work procedure after plating: after plating, steel plate adopts nitrogen or air cooling, and rate of cooling is 6～30 DEG C/s, is cooled to 150 DEG C;
(3) coating heat treatment step: cooled steel plate heats under nitrogen protection, is heated to 800～950 DEG C, insulation 2～10min.
Preferably, in described step (1), it is 700 DEG C that hot press-formed steel plate enters bath temperature, 720 DEG C of bath temperatures, and the hot dipping time of crossing is 12s.In described step (2), after plating, the rate of cooling of steel plate is 10 DEG C/s.In described step (3), cooled steel plate is heated to 890 DEG C, insulation 5min.
Preferably, described in technique of the present invention, hot press-formed steel plate enters hot dip process operation after continuous annealing operation; Described continuous annealing operation adopts following atmosphere: oxygen level≤100ppm, dew point-50～20 DEG C, the nitrogen hydrogen mixeding gas that hydrogen hydrogen volume content is 3%～25%.
Preferred, described dew point is-20 DEG C, hydrogen content 5vol%.
Adopt the beneficial effect that produces of technique scheme to be: the present invention adds rare earth and other elements crossing in liquid, effectively refinement organize grain fineness number; Coating is Al-Si-Ni-rare earth material, Al, Si element be coating main component be combined with iron generate ferro-silicon-aluminium improve mutually resistance of oxidation, Ni further improves aluminium silicon fusing point, rare earth element refinement coating grain fineness number; Make coating have good high temperature oxidation resistance, hot press-formed rear surface is not easy cracking, is not stained with the features such as mould.
In the coating that technique of the present invention obtains, element distributes and homogeneous microstructure, and density is high, be combined closely with matrix, has higher high temperature oxidation resistance, does not glue furnace bottom roll, sticking mould not when punching press, energy better protecting steel matrix and press tool in the process of heating.The present invention adopts immersion can reduce energy consumption, reduces the discharge of waste liquid, reduces environmental pollution, and has the advantages that technique is simple, gained coating performance is good, is applicable to very much large industrial production.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the scanning organization chart of coating of the present invention.
Embodiment
This hot press-formed steel adopts following coating material and immersion to be prepared from resistance to high temperature oxidation coating: (1) substrate continuous annealing operation: annealing furnace atmosphere adopts nitrogen hydrogen mixeding gas; Hydrogen content 3%～25%, oxygen level≤100ppm, dew point-50～20 DEG C in nitrogen hydrogen mixeding gas; In even moving back atmosphere, adopt alap oxygen level can reduce the oxidation of hot press-formed plate iron, control dew point and can effectively control the external oxidation of the element such as Si, Mn, control H content and can control surface of steel plate smooth finish with active, thereby contribute to hot dip process to obtain good coating.
(2) hot dipping ferryman order: hot press-formed steel plate enters plating solution at 600～840 DEG C, 640～800 DEG C of bath temperatures, time 6～30s is crossed in hot dipping; The quality percentage composition of solution composition is: Si 5.0～20.0%, and Ni 0.5～10.0%, Ce 0.1～2.0%, La 0.1～2.0%, Fe≤1.0%, all the other are Al and inevitable impurity thereof.
(3) refrigerating work procedure after plating: after plating, steel plate adopts nitrogen or air cooling, and rate of cooling is 6～30 DEG C/s, is cooled to 100～150 DEG C.
(4) coating heat treatment step: cooled steel plate heats in the process furnace of nitrogen protection, is heated to 800～950 DEG C, insulation 2～10min.
Embodiment 1～6: this hot press-formed steel is as shown in table 1 by the plating solution chemical composition of resistance to high temperature oxidation coating, and coating main production is as shown in table 2, and the leading indicator of gained coating is as shown in table 3.
Table 1: plating solution chemical composition (wt%)
Table 2: main production (parameter)
In table 2, temperature when steel billet temperature refers to steel plate and enters plating solution, the steel plate of this temperature enters plating solution.
Table 3: the main anti-oxidant and hot stamping performance index of coating
In table 3, weight after coating weightening finish ratio=(the rear weight of weight-plating before plating)/plating; Coating and matrix bonding state adopt scanning.
As seen from Figure 1, coating is made up of rich iron thin layer, diffusion layer, middle layer and surface oxide layer; Between each layer, in conjunction with tight, middle layer crystal grain is tiny, is less than 3 microns more.Known in conjunction with Fig. 1 and table 3, each layer of coating is in conjunction with closely, makes coating sticking to mould not in punching course; Middle layer crystal grain is tiny, and element distributes and homogeneous microstructure, and bonding state is not easy to crack; There are the oxide compounds such as Al, Si, rare earth on surface, can effectively improve high temperature oxidation resistance.
Claims (8)
1. a hot press-formed steel resistance to high temperature oxidation coating material, is characterized in that, the quality percentage composition of its solution composition is: Si 5.0～20.0%, Ni 0.5～10.0%, Ce 0.1～2.0%, La 0.1～2.0%, Fe≤1.0%, all the other are Al and inevitable impurity.
2. hot press-formed steel resistance to high temperature oxidation coating material according to claim 1, is characterized in that, the quality percentage composition of described solution composition is: Si 12.0%, Ni 1.0%, Ce 0.8%, La 0.40%, Fe 0.4%, all the other are Al and inevitable impurity.
3. an immersion for hot press-formed steel, is characterized in that, it adopts following processing step:
(1) hot dip process operation: hot press-formed steel plate enters plating solution at 600～840 DEG C, 640～800 DEG C of bath temperatures, time 6～30s is crossed in hot dipping; The quality percentage composition of solution composition is: Si 5.0～20.0%, and Ni 0.5～10.0%, Ce 0.1～2.0%, La 0.1～2.0%, Fe≤1.0%, all the other are Al and inevitable impurity;
(2) refrigerating work procedure after plating: after plating, steel plate adopts nitrogen or air cooling, and rate of cooling is 6～30 DEG C/s, is cooled to 100～150 DEG C;
(3) coating heat treatment step: cooled steel plate heats under nitrogen protection, is heated to 800～950 DEG C, insulation 2～10min.
4. the immersion of hot press-formed steel according to claim 3, is characterized in that: in described step (1), it is 700 DEG C that hot press-formed steel plate enters bath temperature, 720 DEG C of bath temperatures, and the hot dipping time of crossing is 12s.
5. the immersion of hot press-formed steel according to claim 3, is characterized in that: in described step (2), after plating, the rate of cooling of steel plate is 10 DEG C/s.
6. the immersion of hot press-formed steel according to claim 3, is characterized in that: in described step (3), cooled steel plate is heated to 890 DEG C, insulation 5min.
7. according to the immersion of the hot press-formed steel described in claim 3-6 any one, it is characterized in that: described hot press-formed steel plate enters hot dip process operation after continuous annealing operation; Described continuous annealing operation adopts following atmosphere: oxygen level≤100ppm, dew point-50～20 DEG C, the nitrogen hydrogen mixeding gas that hydrogen volume content is 3%～25%.
8. the immersion of hot press-formed steel according to claim 7, is characterized in that: described dew point-20 DEG C, hydrogen content 5vol%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410156753.1A CN103952653B (en) | 2014-04-18 | 2014-04-18 | Hot press-formed steel resistance to high temperature oxidation coating material and hot dipping ferryman's skill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410156753.1A CN103952653B (en) | 2014-04-18 | 2014-04-18 | Hot press-formed steel resistance to high temperature oxidation coating material and hot dipping ferryman's skill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103952653A true CN103952653A (en) | 2014-07-30 |
| CN103952653B CN103952653B (en) | 2016-06-01 |
Family
ID=51329997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410156753.1A Active CN103952653B (en) | 2014-04-18 | 2014-04-18 | Hot press-formed steel resistance to high temperature oxidation coating material and hot dipping ferryman's skill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103952653B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022702A (en) * | 2017-04-06 | 2017-08-08 | 河钢股份有限公司 | For hot press-formed aluminium base coating material and its smelting process |
| CN107904535A (en) * | 2017-11-16 | 2018-04-13 | 河钢股份有限公司 | Coating and its manufacture method for hot press-formed steel |
| CN108774709A (en) * | 2018-05-31 | 2018-11-09 | 马鞍山钢铁股份有限公司 | It is a kind of that there is the reflexive hot-dip coated steel sheet of excellent thermal insulation and preparation method to light and heat |
| CN110678571A (en) * | 2017-06-01 | 2020-01-10 | 日铁日新制钢株式会社 | High-strength Zn-Al-Mg-based surface-coated steel sheet and method for producing same |
| CN111020296A (en) * | 2019-12-31 | 2020-04-17 | 马鞍山钢铁股份有限公司 | Ni-Al-Si alloy system coated steel plate with wide hot forming heating process window and preparation and hot stamping forming process thereof |
| CN111394679A (en) * | 2020-06-08 | 2020-07-10 | 育材堂（苏州）材料科技有限公司 | Coated steel sheet having thin aluminum alloy coating layer and coating method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106282912B (en) * | 2016-08-23 | 2018-05-08 | 南京工程学院 | A kind of pre- aluminising low carbon martensite steel plate press quenching forming method of high intensity |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61147865A (en) * | 1984-12-18 | 1986-07-05 | Nisshin Steel Co Ltd | Aluminum hot dipped steel sheet and its production |
| CN101842509A (en) * | 2007-09-10 | 2010-09-22 | 帕蒂·J·西珀拉 | Method and apparatus for improved formability of galvanized steel having high tensile strength |
| CN102383082A (en) * | 2011-10-12 | 2012-03-21 | 东北大学 | Method for prolonging service life of reducing distillation furnace |
-
2014
- 2014-04-18 CN CN201410156753.1A patent/CN103952653B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61147865A (en) * | 1984-12-18 | 1986-07-05 | Nisshin Steel Co Ltd | Aluminum hot dipped steel sheet and its production |
| CN101842509A (en) * | 2007-09-10 | 2010-09-22 | 帕蒂·J·西珀拉 | Method and apparatus for improved formability of galvanized steel having high tensile strength |
| CN102383082A (en) * | 2011-10-12 | 2012-03-21 | 东北大学 | Method for prolonging service life of reducing distillation furnace |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022702A (en) * | 2017-04-06 | 2017-08-08 | 河钢股份有限公司 | For hot press-formed aluminium base coating material and its smelting process |
| CN110678571A (en) * | 2017-06-01 | 2020-01-10 | 日铁日新制钢株式会社 | High-strength Zn-Al-Mg-based surface-coated steel sheet and method for producing same |
| CN110678571B (en) * | 2017-06-01 | 2022-02-18 | 日铁日新制钢株式会社 | High-strength Zn-Al-Mg-based surface-coated steel sheet and method for producing same |
| CN107904535A (en) * | 2017-11-16 | 2018-04-13 | 河钢股份有限公司 | Coating and its manufacture method for hot press-formed steel |
| WO2019095514A1 (en) * | 2017-11-16 | 2019-05-23 | 河钢股份有限公司 | Coating for hot stamping-formed steel and production method therefor |
| EP3712293A4 (en) * | 2017-11-16 | 2021-09-15 | HBIS Company Limited | Coating for hot stamping-formed steel and production method therefor |
| CN108774709A (en) * | 2018-05-31 | 2018-11-09 | 马鞍山钢铁股份有限公司 | It is a kind of that there is the reflexive hot-dip coated steel sheet of excellent thermal insulation and preparation method to light and heat |
| CN111020296A (en) * | 2019-12-31 | 2020-04-17 | 马鞍山钢铁股份有限公司 | Ni-Al-Si alloy system coated steel plate with wide hot forming heating process window and preparation and hot stamping forming process thereof |
| CN111020296B (en) * | 2019-12-31 | 2021-05-14 | 马鞍山钢铁股份有限公司 | Ni-Al-Si alloy system coated steel plate with wide hot forming heating process window and preparation and hot stamping forming process thereof |
| CN111394679A (en) * | 2020-06-08 | 2020-07-10 | 育材堂（苏州）材料科技有限公司 | Coated steel sheet having thin aluminum alloy coating layer and coating method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103952653B (en) | 2016-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103952653B (en) | Hot press-formed steel resistance to high temperature oxidation coating material and hot dipping ferryman's skill | |
| CN104233149B (en) | Resistance to high temperature oxidation coating material and hot dip coating method for hot press-formed steel | |
| CN101352946B (en) | Hot-dip aluminizing zincium steel plate/belt for deep drawing and method for producing the same | |
| CN104002112B (en) | Method for machining die | |
| CN103492605A (en) | Hot stamp-molded high-strength component having excellent corrosion resistance after coating, and method for manufacturing same | |
| CN104004966B (en) | A kind of manufacture method of press tool | |
| CN103146962B (en) | Body of a motor car high-perforance compression casting aluminium alloy and preparation method thereof | |
| CN107794451B (en) | A kind of plastic die steel 718 and its production technology | |
| CN104073715B (en) | A kind of manufacture method of high-magnetic strength non-oriented electrical steel | |
| CN104278189A (en) | Short-process manufacturing method of cold rolling non-oriented high-silicon steel sheet | |
| CN103834872A (en) | Die steel with high-wearing resistance | |
| CN101709446A (en) | Method for producing aluminum-silicon-copper-magnesium alloy steel plate by continuous hot dipping | |
| CN103882304A (en) | Method for producing ultralow-rigidity annealing-free cold forging steel | |
| CN104946925A (en) | Treatment technology of copper aluminum alloy material for bus duct | |
| CN103952587A (en) | Complex phase copper alloy material and preparation method thereof | |
| CN110951995B (en) | Preparation method of high-strength nickel-based alloy baseband | |
| CN105154715A (en) | High-performance copper alloy material and preparation method thereof | |
| CN104233006A (en) | Novel aluminum alloy internal groove circular tube | |
| CN107267799B (en) | A kind of chrome zirconium copper alloy material and preparation method thereof | |
| CN103643167B (en) | A kind of working method of 700MPa level Green heat treatment high strength cast iron | |
| CN102409271A (en) | Production method of aluminum alloy sheet | |
| CN113718125B (en) | Graphene reinforced aluminum-based composite material with high conductivity and preparation method thereof | |
| CN106282912B (en) | A kind of pre- aluminising low carbon martensite steel plate press quenching forming method of high intensity | |
| CN107022702A (en) | For hot press-formed aluminium base coating material and its smelting process | |
| CN104637640A (en) | Processing technology of iron-chromium-aluminum resistance wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |