CN103447218A - Surface coating technology of cold-rolling whole-process non-oriented electrical steel - Google Patents
Surface coating technology of cold-rolling whole-process non-oriented electrical steel Download PDFInfo
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- CN103447218A CN103447218A CN2013103838618A CN201310383861A CN103447218A CN 103447218 A CN103447218 A CN 103447218A CN 2013103838618 A CN2013103838618 A CN 2013103838618A CN 201310383861 A CN201310383861 A CN 201310383861A CN 103447218 A CN103447218 A CN 103447218A
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- oriented electrical
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- electrical steel
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1277—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular surface treatment
- C21D8/1283—Application of a separating or insulating coating
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
- C21D8/1233—Cold rolling
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The invention discloses a surface coating technology of cold-rolling whole-process non-oriented electrical steel, wherein the coating technology adopts an existing strip steel color coating production line in a cold rolling enterprise. The conditions of the coating technology are as follows: A, the pressure between the rolls of a fine coating machine is 115+/-25kg, and the speed ratio is 1.2+/-0.3; B, the temperature of each section of a curing oven is 280+/-60 DEG C; C, the speed of a strip steel curing process is 65+/-25m/min. The surface coating technology of the cold-rolling whole-process non-oriented electrical steel is performed by the existing strip steel color coating production line, so that no modification is needed to be carried out on equipments, the effect of the color coating production line can be greatly broadened, the production cost of the cold-rolling whole-process non-oriented electrical steel can be effectively reduced, the equipment cost is low, and the equipment debugging time can be effectively shortened.
Description
Technical field
The present invention relates to a kind of new technology of cold rolling full-technique non-oriented electrical steel, especially a kind of surface coating technology of cold rolling full-technique non-oriented electrical steel.
Background technology
Electrical sheet also claims silicon steel sheet, is the indispensable important magnetically soft alloy of electric power, electronics and war industry, is also the Metallic Functional Materials of output maximum, mainly is used as the iron core of various motors, generator and transformer.Non-oriented electrical steel is according to certain production technology, forms the electrical sheet of non orientation deformation texture crystalline texture.Cold rolling non-oriented electrical steel is the non-oriented electrical steel that adopts cold-rolling process to produce, and topmost purposes is the manufacture for generator, motor.Cold rolling full-technique non-oriented electrical steel is the electrical sheet coiled sheet that surface has insulating coating; its insulating coating is the very thin insulating coating be comprised of inorganic matter/organic resin of one deck that is coated in the non-oriented electrical steel surface; purpose is to reduce the eddy current loss of non-oriented electrical steel; guarantee that non-oriented electrical steel has higher surface resistivity; make the interlayer power loss reduce to minimum, protect non-orientation silicon steel to avoid erosion and the corrosion of various corrosive mediums simultaneously.
Cold rolling full-technique non-oriented electrical steel surface applies the coating machine normally adopted on the special-purpose anneling production line of electrical sheet and completes, and is with steel to utilize this special production line to carry out face coat production.Common cold-strip steel color coating line is conventional production line in steel enterprise, and the color coating production that it is mainly used in ordinary band steel does not also have and utilizes the technology report of producing cold rolling full-technique non-oriented electrical steel with the steel color coating line.
The construction costs of generally building electrical sheet specialty annealed wire is 1～1.5 hundred million yuan, and domestic painting machine price is 7,000,000 yuan of left and right, and import price is 1,500 ten thousand yuan～2,000 ten thousand yuan.Equipment is installed, debug time is about 2 years.And the market price of electrical sheet changes comparatively fast, and alter a great deal.Sometimes before building of production line, profit is quite high, and profitless saying after building up, this situation has greatly limited popularization and the sale of product; And high building of production line expense can raise the production cost of cold rolling full-technique non-oriented electrical steel undoubtedly.Therefore, there is the weak point that the rigging up and debugging time is long, equipment cost is high, the product cost is high in the production method of existing cold rolling full-technique non-oriented electrical steel.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of surface coating technology that carries out cold rolling full-technique non-oriented electrical steel that utilizes common color coating line.
For solving the problems of the technologies described above, the technical solution used in the present invention is: described coating processes adopts common color coating line, and the process conditions of described coating processes are:
The roll gap pressure of A, smart painting machine is 115 ± 25 kilograms, and speed ratio is 1.2 ± 0.3;
Each of B, curing oven section temperature is 280 ± 60 ℃;
C, with the speed of steel curing process, be 65 ± 25m/min.
The coating layer thickness applied with steel of the present invention is 0.6～3.0um.
It is 700～1000Nm that the interior circulation of curing oven of the present invention has flow
3the hot-air of/min.
The coating of coating of the present invention is chromium-free environment-friendly type water-based coatings.
Of the present invention similar with the painting machine effect of the special-purpose continuous annealing line of electrical sheet with the steel color-coating line, be all to be coated with insulating layer coating on the surface of cold rolling non-oriented electrical steel.But the technique etc. that is coated with machine, curing oven due to the essence of the coating apparatus of electrical sheet annealed wire and color-coating line exists very big difference, need to carry out necessary significant improvement at aspects such as the roll gap pressure of furnace temperature, strip speed, painting machine, curing of coatings, reach user's instructions for use with the coating performance of guaranteeing belt steel surface.Based on above-mentioned requirements, what in operation principle, design feature, heating cycle and product mix according to color-coating line essence painting machine, curing oven, provide formulates the curing simulated experiment scheme of cold rolling full technological electrical steel surface coating layer with steel wire speed, by the analysis mode experimental data of scientific system and the work of novelty, study and define out this production method.
The beneficial effect that adopts technique scheme to produce is: the inventive method is improved for coating and the curing process of existing color-coating line, the surface insulation layer that makes it to utilize existing ordinary band steel color coating line to carry out cold rolling full-technique non-oriented electrical steel band applies, do not need equipment is carried out to any transformation, greatly expanded the function of existing color coating line, and the production cost and the equipment cost that have effectively reduced cold rolling full-technique non-oriented electrical steel are low, have effectively shortened the equipment debugging time.
The present invention can be by applying strong adhesion, color and luster uniform insulation material at belt steel surface, and this coat can not come off because of the machining deformation of material, with insulating properties, closed assembly performance, heat resistance, processing characteristics and the corrosion resisting property etc. that meet electrical sheet.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is further detailed explanation.
Embodiment 1: the surface coating technology of this cold rolling full-technique non-oriented electrical steel adopts following processing step.
Non-oriented electrical steel kind: 50W1000, specification: 0.5*1200mm; Adopt common color coating line, chromium-free environment-friendly type water-based coatings FY GG1001, the color-coating line technical process: the roll gap pressure of smart painting machine is 115 kilograms, speed ratio is 1.2; 220 ℃～310 ℃ of each of curing oven section temperature, strip process speed is 40m/min, in curing oven, hot air flowrate is 850Nm
3/ min.After above-mentioned coating processes is processed, the belt steel surface performance is as table 1.
Table 1: coating processes is processed rear belt steel surface performance
Embodiment 2: the surface coating technology of this cold rolling full-technique non-oriented electrical steel adopts following processing step.
Non-oriented electrical steel kind: 50W800, specification: 0.5*1200mm; Adopt common color coating line, chromium-free environment-friendly type water-based coatings FY GG1001, color-coating line carries out surface insulation layer coating processes process: the roll gap pressure of smart painting machine is 130 kilograms, speed ratio is 1.0; 230 ℃～315 ℃ of each of curing oven section temperature, strip process speed is 60m/min, in curing oven, hot air flowrate is 700Nm
3/ min.After above-mentioned coating processes is processed, the belt steel surface performance is as table 2.
Table 2: coating processes is processed rear belt steel surface performance
Embodiment 3: the surface coating technology of this cold rolling full-technique non-oriented electrical steel adopts following processing step.
Non-oriented electrical steel kind: 50W1300, specification: 0.5*1200mm; Adopt common color coating line, chromium-free environment-friendly type water-based coatings FY GG1001, the color-coating line technical process: the roll gap pressure of smart painting machine is 100 kilograms, speed ratio is 1.4; 261 ℃～340 ℃ of each of curing oven section temperature, strip process speed is 90mp/min, in curing oven, hot air flowrate is 1000Nm
3/ min.After above-mentioned coating processes is processed, the belt steel surface performance is as table 3.
Table 3: coating processes is processed rear belt steel surface performance
Claims (4)
1. the surface coating technology of a cold rolling full-technique non-oriented electrical steel is characterized in that: described coating processes adopts color coating line, and the process conditions of described coating processes are:
The roll gap pressure of A, smart painting machine is 115 ± 25 kilograms, and speed ratio is 1.2 ± 0.3;
Each of B, curing oven section temperature is 280 ± 60 ℃;
C, with the speed of steel curing process, be 65 ± 25m/min.
2. the surface coating technology of cold rolling full-technique non-oriented electrical steel according to claim 1 is characterized in that: the described coating layer thickness applied with steel is 0.6～3.0um.
3. the surface coating technology of cold rolling full-technique non-oriented electrical steel according to claim 1 is characterized in that: in described curing oven, flow is arranged is 700～1000Nm in circulation
3the hot-air of/min.
4. according to the surface coating technology of claim 1,2 or 3 described cold rolling full-technique non-oriented electrical steels, it is characterized in that: the coating of described coating is chromium-free environment-friendly type water-based coatings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013103838618A CN103447218A (en) | 2013-08-29 | 2013-08-29 | Surface coating technology of cold-rolling whole-process non-oriented electrical steel |
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| CN2013103838618A CN103447218A (en) | 2013-08-29 | 2013-08-29 | Surface coating technology of cold-rolling whole-process non-oriented electrical steel |
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| CN103447218A true CN103447218A (en) | 2013-12-18 |
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| CN2013103838618A Pending CN103447218A (en) | 2013-08-29 | 2013-08-29 | Surface coating technology of cold-rolling whole-process non-oriented electrical steel |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1532003A (en) * | 2003-03-21 | 2004-09-29 | 宝山钢铁股份有限公司 | Coating method for self adhesive coating of electrical steel |
| WO2009079540A1 (en) * | 2007-12-18 | 2009-06-25 | E. I. Du Pont De Nemours And Company | Process of coating electrical steel |
| CN102477235A (en) * | 2010-11-29 | 2012-05-30 | 攀钢集团钢铁钒钛股份有限公司 | Chromium-free insulating coating, electrical sheet material and preparation method thereof |
-
2013
- 2013-08-29 CN CN2013103838618A patent/CN103447218A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1532003A (en) * | 2003-03-21 | 2004-09-29 | 宝山钢铁股份有限公司 | Coating method for self adhesive coating of electrical steel |
| WO2009079540A1 (en) * | 2007-12-18 | 2009-06-25 | E. I. Du Pont De Nemours And Company | Process of coating electrical steel |
| CN102477235A (en) * | 2010-11-29 | 2012-05-30 | 攀钢集团钢铁钒钛股份有限公司 | Chromium-free insulating coating, electrical sheet material and preparation method thereof |
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Application publication date: 20131218 |