CN102021586A - Production method of single-sided clad steel sheet and single-sided clad steel sheet - Google Patents
Production method of single-sided clad steel sheet and single-sided clad steel sheet Download PDFInfo
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- CN102021586A CN102021586A CN2009101874558A CN200910187455A CN102021586A CN 102021586 A CN102021586 A CN 102021586A CN 2009101874558 A CN2009101874558 A CN 2009101874558A CN 200910187455 A CN200910187455 A CN 200910187455A CN 102021586 A CN102021586 A CN 102021586A
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Abstract
The invention discloses a production method of a single-sided clad steel sheet and the single-sided clad steel sheet. The production method comprises: firstly, cleaning the steel sheet; and then carrying out surface activation. The production method is characterized in that cold spraying processing equipment is used for carrying out single-sided cold spraying on the steel sheet; then, the sprayed steel sheet is subject to heat treatment for 3-60 seconds at the coating melting point temperature of about 100 DEG C under the protective atmosphere in a continuous annealing furnace; and after being heated, the sprayed steel sheet is immediately cooled to room temperature in the continuous annealing furnace. The cladding of the obtained single-sided clad steel sheet can be various types of metals or alloys, the cladding thickness of the obtained single-sided clad steel is 5-1000 microns, and the alloy layer thickness of the obtained single-sided clad steel is less than 3 microns. The production method is practical and efficient and is easy to realize industrialization.
Description
Technical field
The invention belongs to spraying and hot dip technical field, particularly a kind of production method of single-face plating steel plate and single-face plating steel plate thereof.
Background technology
At present, obtain the practicality and high efficiency technology of the metal protection coating of strip steel, adopt the continuous production method of molten metal hot dip, the coating of acquisition is two-sided.But in the application in some field, single-face plating just can meet the demands, even only requires it is single-face plating, as under the working conditions of some particular requirements, just must use the single face alclad sheet.
In this case, how the acquisition single-face plating steel plate of practicality and high efficiency is just particularly important:
Existing patented technology has following several mode:
First kind, as CN88102919A, CN101338433A, the doubling plate roll coil of strip is sent into conventional continuous coating unit, behind the acquisition coating,, obtain single-face plating with strip side cut, bundling.The advantage of this method is to utilize existing coating unit, but the problem that exists is how strip to be made bilayer, and must guarantee that the fusion plating bath does not enter interlayer in the plating process, guarantees that simultaneously band steel plate type and plating quality are good.
Second kind, as CN 1912169A etc. announce, before carrying out the plating processing, belt steel surface is carried out special processing: the one side of steel plate is coated with last layer acid-proof substances, special coating etc., guarantee when the band steel immerses the fusion plating bath, not react, thereby obtain the single-face plating steel plate with surface of steel plate.The advantage of this method is simple, and shortcoming is the integrity of one side in the technology whole process that how to guarantee to apply acid-proof substances, special coating, and in addition, application substance may pollute the fusion plating bath, and the removing of plating back application substance also is a problem.
Also having a kind of method is exactly that the band steel partly is wrapped on the bigger plating roller, will plate roller and immerse the plating bath certain depth, thereby obtain single-face plating.But this method requires the steel plate and the contact surface of plating roller must not to have the slit, is difficult to accomplish in actual production.
Summary of the invention
In order to overcome above-mentioned defective, problem to be solved by this invention provide a kind of practicality and high efficiency, be easy to industrialized single-face plating steel plate production method and single-face plating steel plate thereof.
Concrete steps of the present invention are as follows:
1, on tinuous production, clean, utilize methods such as continuous annealing furnace or sandblast to carry out surface activation process to steel plate earlier;
Clean main purpose to steel plate is to remove the Residual oil of surface of steel plate, dirt, iron powder etc., and purging method can alkali cleaning, also can electrolytic cleaning.
The surface activation process of steel plate is normally carried out anneal under the nitrogen and hydrogen mixture atmosphere, purpose is the zone of oxidation of reduction surface of steel plate, obtains active surface; Improve the roughness of surface of steel plate if desired, can carry out sandblasting, can carry out anneal after the sandblasting, also can not carry out anneal and obtain active surface;
2, with the cold spraying treatment facility steel plate is carried out the single face cold spraying;
What the single face cold spraying treatment facility of steel plate adopted is supersonic speed cold air power spraying and coating equipment, and it is power that this equipment adopts high pressure gas, below metal or alloy powder melting temperature, it is accelerated to the supersonic speed state, is sprayed at surface of steel plate, obtains the single face coating; Used high pressure gas can be pressurized air, also can be nitrogen, argon gas or its mixed gas, and gaseous tension requires to be lower than the requirement that 1MPa can not satisfy cold spraying for 1-10MPa, is higher than 10 MPa having relatively high expectations to equipment.Coat-thickness is definite according to requiring by adjusting steel belt operating speed and powder sending quantity.The used powder of cold spraying is decided according to requiring, and can be metal-powder, as: aluminium powder, zinc powder, glass putty, copper powder etc. also can be metal alloy powders, as: aluminium-zinc alloy powder, zinc magnesium alloy powder, al-mg alloy powder etc.The diameter of powder is 100 nanometers to 50 micron, and thickness of coating hour is selected the less powder of diameter, and coating requires to select the bigger powder of diameter when thicker.
3, then heat-treat under the protective atmosphere in continuous annealing furnace, heating and temperature control is at the coating melting temperature up and down in 100 ℃ of scopes, but must not be greater than 900 ℃, and be 3～60 seconds heat-up time;
Heating temperature is too high, makes mobile the increasing of coating easily and trickling downwards, and the diffusion that Heating temperature is crossed between low coating and the matrix is difficult for carrying out, and the bonding force of coating and matrix can not guarantee.But be higher than the coating of steel plate for fusing point, as copper, Heating temperature must not satisfy the needs of tinuous production greater than 900 ℃ with the intensity that guarantees steel.Coating is finished the diffusion between coating and the matrix in heating refrigerative process, formed the good Coated Steel of bonding force, and because heat-up time is shorter, and alloy layer is thinner, the single-face plating steel plate toughness that obtains is better.
4, in continuous annealing furnace, be cooled to room temperature immediately after the heating, obtain the single-face plating steel plate;
5, if need further control to thickness of coating, the steel plate after the spraying can be heated to more than the coating fusing point between 50～100 ℃, utilize air knife that it is carried out thickness and control.
Heating temperature is lower than above 50 ℃ of fusing point, and the plating bath flowability is bad, and thickness of coating is wayward; Heating temperature is higher than above 100 ℃ of fusing point, and the plating bath flowability is too strong, and thickness of coating is also wayward, and temperature is too high, and the reaction between steel plate and the coating is too strong, and the alloy layer of generation is thicker.
According to the difference that requires, can select or not select above-mentioned single-face plating steel plate is carried out smooth, straightening, Passivation Treatment.The smooth surface quality that can improve coating, the while also can be improved the density of coating.Straightening can improve template, and passivation improves Corrosion Protection.
Single-face plating steel plate production method practicality and high efficiency of the present invention, be easy to industrialization, this method can obtain thicker coating (5～1000 microns), and the alloy layer of generation is thin (less than 3 microns), and toughness is better, and is applicable to multiple metal and alloy.
Embodiment
Below the specific embodiment of the present invention is described further:
Embodiment 1:
Single-sided aluminium plating steel plate:
On tinuous production, earlier steel plate is carried out alkali lye and clean, activation method is at 95%N in continuous annealing furnace
25%H
2The annealing of restitutive protection's atmosphere; Then carry out the single face cold spraying with supersonic speed cold air power spraying and coating equipment, spraying used powder is aluminium powder, and powder temperature is a room temperature, 5 microns of diameters, and spraying gases used is nitrogen, pressure is 3MPa, obtains thickness and be 50 microns single face coated steel sheet; Follow in continuous annealing furnace at 95%N
25%H
2Heat-treat under restitutive protection's atmosphere, thermal treatment temp is 700 ℃, 3 seconds time, obtains the good single-face plating steel plate of bonding properties to cool off fast greater than the speed of 10 ℃/s immediately; Then steel plate is carried out smooth, straightening, Passivation Treatment.
Embodiment 2:
One-side galvanized steel plate:
On tinuous production, earlier steel plate is carried out alkali lye and clean, activation method is at 95%N in continuous annealing furnace
25%H
2The annealing of restitutive protection's atmosphere; Then carry out the single face cold spraying with supersonic speed cold air power spraying and coating equipment, spraying used powder is zinc powder, and powder temperature is a room temperature, 25 microns of diameters, and spraying gases used is nitrogen, pressure is 5MPa, obtains thickness and be 100 microns single face coated steel sheet; Follow in continuous annealing furnace at 95%N
25%H
2Heat-treat under restitutive protection's atmosphere, thermal treatment temp is 470 ℃, and 5 seconds time is immediately with greater than the fast cold good single-face plating steel plate of bonding properties that obtains of the speed of 10 ℃/s; Then steel plate is carried out smooth, straightening, Passivation Treatment.
Embodiment 3:
Single face aluminum-zinc alloy (55%Al43.4%Zn1.6%Si) steel plate:
On tinuous production, earlier steel plate is carried out electrolytic cleaning, activation method is at 70%N in continuous annealing furnace
230%H
2The annealing of restitutive protection's atmosphere; Then carry out the single face cold spraying with supersonic speed cold air power spraying and coating equipment, spraying used powder is aluminium zinc (55%Al43.4%Zn1.6%Si) alloy powder, powder temperature is 200 ℃, 45 microns of diameters, spraying gases used is 90% nitrogen, 10% helium mix gas, pressure is 8MPa, obtains thickness and be 200 microns single face coated steel sheet; Follow in continuous annealing furnace at 95%N
25%H
2Heat-treat under restitutive protection's atmosphere, thermal treatment temp is 600 ℃, 8 seconds time, then utilizes air knife to carry out thickness of coating control, obtain thickness of coating and be 20 microns aluminium-zinc coating, immediately with greater than the fast cold good single-face plating steel plate of bonding properties that obtains of the speed of 15 ℃/s; Then steel plate is carried out smooth, straightening, Passivation Treatment.
Embodiment 4:
One side zinc coating aluminium (95%Zn5%Al) steel plate:
On tinuous production, earlier steel plate is carried out electrolytic cleaning, activation method is at 90%N in continuous annealing furnace
210%H
2The annealing of restitutive protection's atmosphere; Then carry out the single face cold spraying with supersonic speed cold air power spraying and coating equipment, spraying used powder is zinc-aluminium (Zn5%Al) alloy powder, powder temperature is 100 ℃, 1 micron of diameter, spraying gases used is 90% nitrogen, 10% helium mix gas, pressure is 1.5MPa, obtains thickness and be 20 microns single face coated steel sheet; Follow in continuous annealing furnace at 95%N
25%H
2Heat-treat under restitutive protection's atmosphere, thermal treatment temp is 470 ℃, 6 seconds time, obtains thickness of coating and be 20 microns aluminium-zinc coating, immediately with greater than the fast cold good single-face plating steel plate of bonding properties that obtains of the speed of 10 ℃/s; Then steel plate is carried out smooth, straightening, Passivation Treatment.
Embodiment 5:
One side zinc coating magnalium (92%Zn5%Al3%Mg) steel plate:
On tinuous production, earlier steel plate is carried out electrolytic cleaning, activation method is at 90%N in continuous annealing furnace
210%H
2The annealing of restitutive protection's atmosphere; Then carry out the single face cold spraying with supersonic speed cold air power spraying and coating equipment, spraying used powder is zinc-aluminum-magnesium (Zn5%Al3%Mg) alloy powder, powder temperature is 100 ℃, 10 microns of diameters, spraying gases used is 90% nitrogen, 10% helium mix gas, pressure is 3.SMPa, obtains thickness and be 50 microns single face coated steel sheet; Follow in continuous annealing furnace at 95%N
25%H
2Heat-treat under restitutive protection's atmosphere; thermal treatment temp is 480 ℃, 10 seconds time, then utilizes air knife to carry out thickness of coating control; obtain thickness of coating and be 20 microns aluminium-zinc coating, immediately with greater than the fast cold good single-face plating steel plate of bonding properties that obtains of the speed of 20 ℃/s.
Embodiment 6:
The single face Copper Plated Steel:
On tinuous production, earlier steel plate is carried out electrolytic cleaning, activation method is that sandblast is added in the continuous annealing furnace at 90%N again
210%H
2The annealing of restitutive protection's atmosphere; Then carry out the single face cold spraying with supersonic speed cold air power spraying and coating equipment, spraying used powder is pure copper powder, and powder temperature is 400 ℃, 30 microns of diameters, spraying gases used is 90% nitrogen, 10% helium mix gas, and pressure is 6.5MPa, obtains thickness and be 400 microns single face coated steel sheet; Follow in continuous annealing furnace at 95%N
25%H
2Heat-treat under restitutive protection's atmosphere, thermal treatment temp is 800 ℃, 30 seconds time, obtains thickness of coating and be 400 microns aluminium-zinc coating, immediately with greater than the fast cold good single-face plating steel plate of bonding properties that obtains of the speed of 15 ℃/s.
Claims (5)
1. single-face plating steel plate production method, comprise earlier to steel plate clean, surface activation process, it is characterized in that: steel plate is carried out the single face cold spraying with the cold spraying treatment facility; Steel plate after then will spraying under the protective atmosphere, is heat-treated in 100 ℃ of scopes up and down at the coating melting temperature in continuous annealing furnace, and be 3～60 seconds heat-up time, is cooled to room temperature after the heating immediately in continuous annealing furnace.
2. single-face plating steel plate production method according to claim 1 is characterized in that: the steel plate after the described spraying is heated in continuous annealing furnace more than the coating fusing point between 50～100 ℃, utilizes air knife that coating is carried out thickness and controls.
3. single-face plating steel plate production method according to claim 1 is characterized in that: described cold spraying treatment facility is a supersonic speed cold air power spraying and coating equipment, and gaseous tension requires to be 1-10MPa.
4. single-face plating steel plate production method according to claim 1 is characterized in that: the used powder of described cold spraying is metal-powder or metal alloy powders.
5. single-face plating steel plate of producing according to any described method in the claim 1～4, it is characterized in that: thickness of coating is 5～1000 microns, and alloy layer thickness is less than 3 microns.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102327836A (en) * | 2011-08-18 | 2012-01-25 | 无锡市精盛汽车配件有限公司 | Spraying treatment line system for decorative frame of lamp house of automobile |
| CN104294206A (en) * | 2014-10-09 | 2015-01-21 | 沈阳富创精密设备有限公司 | Preparation method of high-temperature creep resistant grounding substrate for semiconductor equipment |
| CN107155334A (en) * | 2014-06-10 | 2017-09-12 | 墨尼特涂层有限公司 | The method of coated steel plates |
| CN107761092A (en) * | 2017-11-08 | 2018-03-06 | 新疆亚中易德环保科技有限公司 | A kind of aerodynamic force sprays copper alloy coating intensifying method |
| CN110168140A (en) * | 2017-01-17 | 2019-08-23 | 国立大学法人信州大学 | The manufacturing method of ceramic circuit board |
| CN111304645A (en) * | 2020-04-02 | 2020-06-19 | 季华实验室 | Preparation method of tin brass-carbon steel composite material and tin brass-carbon steel composite material |
Citations (1)
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| CN101063202A (en) * | 2006-04-30 | 2007-10-31 | 宝山钢铁股份有限公司 | Method for manufacturing stanningmetal plate |
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2009
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063202A (en) * | 2006-04-30 | 2007-10-31 | 宝山钢铁股份有限公司 | Method for manufacturing stanningmetal plate |
Non-Patent Citations (1)
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| 袁晓光等: ""热处理对镁合金表面冷喷涂界面层扩散的影响"", 《特种铸造及有色合金》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102327836A (en) * | 2011-08-18 | 2012-01-25 | 无锡市精盛汽车配件有限公司 | Spraying treatment line system for decorative frame of lamp house of automobile |
| CN102327836B (en) * | 2011-08-18 | 2013-08-14 | 无锡市精盛汽车配件有限公司 | Spraying treatment line system for decorative frame of lamp house of automobile |
| CN107155334A (en) * | 2014-06-10 | 2017-09-12 | 墨尼特涂层有限公司 | The method of coated steel plates |
| CN104294206A (en) * | 2014-10-09 | 2015-01-21 | 沈阳富创精密设备有限公司 | Preparation method of high-temperature creep resistant grounding substrate for semiconductor equipment |
| CN110168140A (en) * | 2017-01-17 | 2019-08-23 | 国立大学法人信州大学 | The manufacturing method of ceramic circuit board |
| CN110168140B (en) * | 2017-01-17 | 2021-07-30 | 国立大学法人信州大学 | Method for manufacturing ceramic circuit board |
| CN107761092A (en) * | 2017-11-08 | 2018-03-06 | 新疆亚中易德环保科技有限公司 | A kind of aerodynamic force sprays copper alloy coating intensifying method |
| CN111304645A (en) * | 2020-04-02 | 2020-06-19 | 季华实验室 | Preparation method of tin brass-carbon steel composite material and tin brass-carbon steel composite material |
| CN111304645B (en) * | 2020-04-02 | 2022-03-25 | 季华实验室 | Preparation method of tin brass-carbon steel composite material and tin brass-carbon steel composite material |
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Application publication date: 20110420 |