CN101871105B - Production technique of high-accuracy cold-rolling carbon-steel steel belt for electronic industry - Google Patents
Production technique of high-accuracy cold-rolling carbon-steel steel belt for electronic industry Download PDFInfo
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- CN101871105B CN101871105B CN2010102078727A CN201010207872A CN101871105B CN 101871105 B CN101871105 B CN 101871105B CN 2010102078727 A CN2010102078727 A CN 2010102078727A CN 201010207872 A CN201010207872 A CN 201010207872A CN 101871105 B CN101871105 B CN 101871105B
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Abstract
The invention relates to a production technique of a high-accuracy cold-rolling carbon-steel steel belt for the electronic industry, comprising the following steps: pickling the raw materials, cold rolling primarily, cutting edges, spraying and degreasing, annealing in a cover type manner, cold rolling secondarily, stretching crookedly and straightening and cutting into a finished product. The production technique adopts a four-roller high-accuracy reversing rolling machine and a unique rolling technique to conduct cold rolling, leads the product to has little thickness tolerance fluctuation, stable performance, uniform and consistent surface color, and no defects of color difference, scratching, slip line and the like, good plate-shaped flatness and straightness by the techniques of degreasing, annealing in a cover type manner, stretch bending and straightening, and the like, remarkably improves the product quality, is suitable for industrialized production, meets the high-quality requirements of the electronic industry, replaces stainless steel materials, and reduces the cost.
Description
Technical field
The present invention relates to electronic product accessories such as web member on a kind of notebook computer that is widely used in communication field (mainly being mobile telephone) web member, shielding case, support, built-in aerial, metal patch, IT field, palm PC, the hard disk with the production technique of high-accuracy cold-rolling carbon-steel steel belt.
Background technology
The steel band of manufacturing used in electronic industry adopts stainless material mostly at present, the cost height, and the cold-rolled carbon steel steel band all is to adopt emulsion to be rolled on four rollers or six roller continuous mills, reversible engine as the cold-rolling process metalworking coolant, and adopt other utility appliance to improve performance, surface and plate shape planeness, but the cold-rolled steel strip that adopts existing technology to make exists the thickness deviation fluctuation big, shortcomings such as mechanical property instability, surface have aberration, scratch, slip line, and plate shape planeness is bad.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of and can produce defectives such as the fluctuation of stable performance, thickness deviation is little, surface color uniformity, no color differnece, scratch, slip line, can satisfy the high-quality requirement of electron trade and can substitute the production technique of traditional stainless high-accuracy cold-rolling carbon-steel steel belt.
According to technical scheme provided by the invention, the production technique of described high-accuracy cold-rolling carbon-steel steel belt for electronic industry comprises the steps:
A, to thickness is 2.75～3.0mm, carbon content is carried out uncoiling at the coils of hot-rolled steel of 0.02%～0.05% scope on the pickling unit, steel band after the uncoiling carries out chlorohydric acid pickling in three sections pickling tanks of pickling unit handles, in first section pickling tank hydrochloric acid and water is mixed with weight concentration during pickling and is 5%～10% hydrochloric acid pickler, the hydrochloric acid pickler temperature is controlled at 75～80 ℃ in first section pickling tank, in second section pickling tank hydrochloric acid and water is mixed with weight concentration during pickling and is 8%～10% hydrochloric acid pickler, the hydrochloric acid pickler temperature is controlled at 70～75 ℃ in second section pickling tank, in the 3rd section pickling tank hydrochloric acid and water is mixed with weight concentration during pickling and is 8%～15% hydrochloric acid pickler, the hydrochloric acid pickler temperature is controlled at 65～75 ℃ in the 3rd section pickling tank, the length of every section pickling tank is 9 meters, and steel band is 30～40 meters/minute in the travelling speed of pickling unit;
B, steel band carry out the secondary heat water-spraying and clean after pickling, the hot water temperature when first step heat water-spraying cleans is controlled at 30～50 ℃, and the hot water temperature when second stage heat water-spraying cleans is controlled at 30～60 ℃;
C, secondary heat water-spraying carry out passivation after cleaning, and Sodium Nitrite and water are mixed with weight concentration in deactivation slot and are 8%～10% sodium nitrite passivation liquid, and the passivating solution temperature is controlled at 50～70 ℃ during passivation;
Carry out hot-air seasoning after d, the passivation, hot blast temperature was 100～120 ℃ when hot-air seasoning was handled;
It is cold rolling that steel band behind e, the hot-air seasoning adopts four roller high precision reversable mills to carry out the first time, to adopt QuakerolC420-1 cold-rolled lubricating oil that Wuxi Kui Ke chemistry company limited provides and water to be mixed with weight concentration be 2%～4% cold-rolled lubricating oil emulsion to used lubricating and cooling agent when for the first time cold rolling, the temperature of cold-rolled lubricating oil emulsion is controlled at 45～55 ℃, steel band is cold-rolled to 0.28～0.57mm work in-process thickness through a plurality of passages, the first passage rolling mill speed is controlled at 60～80 meters/minute, and each passage rolling mill speed is controlled at 250～350 meters/minute afterwards; The cold rolling total draft scope 81～90% of steel band;
F, through the processing of on slitting line, cutting edge of the work in-process thickness steel band after the once cold rolling;
G, the work in-process thickness steel band of handling through side cut carry out uncoiling on the degreasing unit, work in-process thickness steel band after the uncoiling is handled at the indoor spray degreasing that carries out of the degreasing of degreasing unit, Gardoclean S 5160/1 grease-removing agent and the water that during spray degreasing Shanghai Kai Miteer chemical company limited are provided are mixed with the grease-removing agent skim soln that contains 9g/l～11g/l, skim soln temperature during spray degreasing is 60～85 ℃, and work in-process thickness steel band travelling speed in the degreasing unit is 30～40 meters/minute;
H, work in-process thickness steel band carry out heat water-spraying's cleaning behind spray degreasing, the hot water temperature during spray Cleaning for High Capacity is 45～60 ℃;
Carry out hot-air seasoning after i, heat water-spraying clean and handle, hot blast temperature was 100～120 ℃ when hot-air seasoning was handled;
Work in-process thickness steel band after j, oven dry are handled adopts bell type annealing furnace to carry out anneal, and annealing temperature is controlled at 620～640 ℃, and the annealing soaking time was controlled at 10～12 hours, used volume content to be 25%N during annealing
2And 75%H
2Nitrogen hydrogen shielding gas;
It is cold rolling that work in-process thickness steel band after k, the anneal adopts four roller high precision reversable mills to carry out the second time, used lubricating and cooling agent adopt Wuxi City newly to revive the pure ROLLING OIL of 5# that grease company limited provides when for the second time cold rolling, 0.28～0.57mm work in-process thickness steel band is cold-rolled to 0.20～0.40mm finished product thickness steel band, and four roller high precision reversable mill speed control are at 80～100 meters/minute;
L, the finished product thickness steel band behind secondary cold-rolling adopt the straightening machine to carry out stretch-bending straightening, take the permanent control mode of extending, and elongation control is 0.5%～0.8%, and travelling speed is controlled at 100～150 meters/minute;
Finished product thickness steel band behind m, the stretch-bending straightening can carry out slitting cuts, and obtains the finished width steel band.
The product thickness tolerance variations of explained hereafter of the present invention is little, stable performance, surface color uniformity (no color differnece), plate shape good straightness degree, and product quality significantly improves, be suitable for suitability for industrialized production, satisfy the high-quality requirement of electron trade, can substitute traditional stainless material, reduce cost.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
Embodiment 1
It is that the coils of hot-rolled steel of SPHC is starting material that the technology of present embodiment is selected the trade mark for use, and carbon content is 0.04%, and thickness is 2.75mm, and width is 415mm, and finished product steel belt thickness is 0.20mm, and state is 1/2 hard, and hardness is 140～170HV
0.3
The present invention adopts following processing step:
A, to thickness is 2.75mm, carbon content is carried out uncoiling at 0.04% coils of hot-rolled steel on the pickling unit, steel band after the uncoiling carries out chlorohydric acid pickling in three sections pickling tanks of pickling unit handles, in first section pickling tank hydrochloric acid and water is mixed with weight concentration during pickling and is 7% hydrochloric acid pickler, the hydrochloric acid pickler temperature is 77 ℃ in first section pickling tank, in second section pickling tank hydrochloric acid and water is mixed with weight concentration during pickling and is 9% hydrochloric acid pickler, the hydrochloric acid pickler temperature is 74 ℃ in second section pickling tank, in the 3rd section pickling tank hydrochloric acid and water is mixed with weight concentration during pickling and is 12% hydrochloric acid pickler, the hydrochloric acid pickler temperature is 68 ℃ in the 3rd section pickling tank, the length of every section pickling tank is 9 meters, and steel band is 36 meters/minute in the travelling speed of pickling unit;
B, steel band carry out the secondary heat water-spraying and clean after pickling, the hot water temperature when first step heat water-spraying cleans is 45 ℃, and the hot water temperature when second stage heat water-spraying cleans is 50 ℃;
C, secondary heat water-spraying carry out passivation after cleaning, and Sodium Nitrite and water are mixed with weight concentration in deactivation slot and are 9% sodium nitrite passivation liquid, and the passivating solution temperature is 55 ℃ during passivation;
Carry out hot-air seasoning after d, the passivation, hot blast temperature was 115 ℃ when hot-air seasoning was handled;
It is cold rolling that steel band behind e, the hot-air seasoning adopts four roller high precision reversable mills to carry out the first time, to adopt QuakerolC420-1 cold-rolled lubricating oil that Wuxi Kui Ke chemistry company limited provides and water to be mixed with weight concentration be 2.5% cold-rolled lubricating oil emulsion to used lubricating and cooling agent when for the first time cold rolling, the temperature of cold-rolled lubricating oil emulsion is 48 ℃, steel band is cold-rolled to 0.28mm work in-process thickness steel band through 7 passages, the first passage rolling mill speed is 80 meters/minute, and each passage rolling mill speed is 320 meters/minute afterwards; The cold rolling total draft of steel band is 90%;
F, through the processing of on slitting line, cutting edge of the work in-process thickness steel band after the once cold rolling;
G, the work in-process thickness steel band of handling through side cut carry out uncoiling on the degreasing unit, work in-process thickness steel band after the uncoiling is handled at the indoor spray degreasing that carries out of the degreasing of degreasing unit, Gardoclean S 5160/1 grease-removing agent and the water that during spray degreasing Shanghai Kai Miteer chemical company limited are provided are mixed with the grease-removing agent skim soln that contains 10g/l, skim soln temperature during spray degreasing is 75 ℃, and work in-process thickness steel band travelling speed in the degreasing unit is 38 meters/minute;
H, work in-process thickness steel band carry out heat water-spraying's cleaning behind spray degreasing, the hot water temperature during spray Cleaning for High Capacity is 55 ℃;
Carry out hot-air seasoning after i, heat water-spraying clean and handle, hot blast temperature was 105 ℃ when hot-air seasoning was handled;
Work in-process thickness steel band after j, oven dry are handled adopts bell type annealing furnace to carry out anneal, and annealing temperature is 640 ℃, and the annealing soaking time is 10 hours, uses volume content to be 25%N during annealing
2And 75%H
2Nitrogen hydrogen shielding gas;
It is cold rolling that work in-process thickness steel band after k, the anneal adopts four roller high precision reversable mills to carry out the second time, used lubricating and cooling agent adopt Wuxi City newly to revive the pure ROLLING OIL of 5# that grease company limited provides when for the second time cold rolling, 0.28mm work in-process thickness steel band is cold-rolled to 0.20mm finished product thickness steel band, four roller high precision reversable mill speed are 100 meters/minute
L, the 0.20mm finished product thickness steel band after will be for the second time cold rolling adopt the straightening machine to carry out stretch-bending straightening, take the permanent control mode of extending, and unit elongation is 0.8%, and travelling speed is 100 meters/minute;
0.20mm finished product thickness steel band behind m, the stretch-bending straightening can carry out slitting cuts, and obtains the finished width steel band.
Adopt the product of above-mentioned explained hereafter, its key technical indexes can reach:
(1) thickness deviation: 0.20
± 0.01Mm,
(2) width difference: 405
± 0.10Mm;
(3) hardness (1/2 is hard): (140～170) HV
0.3
(4) roughness :≤0.50mm;
(5) appearance surfaces: defectives such as color and luster uniformity, no color differnece, nothing scratch, no slip line.
Embodiment 2
It is that the coils of hot-rolled steel of SPHC is starting material that the technology of present embodiment is selected the trade mark for use, and carbon content is 0.05%, and thickness is 3.0mm, and width is 415mm, and finished product steel belt thickness is 0.25mm, and state is 1/2 hard, and hardness is 140～170HV
0.3
The present invention adopts following processing step:
A, to thickness is 3.0mm, carbon content is carried out uncoiling at 0.05% coils of hot-rolled steel on the pickling unit, steel band after the uncoiling carries out chlorohydric acid pickling in three sections pickling tanks of pickling unit handles, in first section pickling tank hydrochloric acid and water is mixed with weight concentration during pickling and is 5% hydrochloric acid pickler, the hydrochloric acid pickler temperature is 80 ℃ in first section pickling tank, in second section pickling tank hydrochloric acid and water is mixed with weight concentration during pickling and is 8% hydrochloric acid pickler, the hydrochloric acid pickler temperature is 75 ℃ in second section pickling tank, in the 3rd section pickling tank hydrochloric acid and water is mixed with weight concentration during pickling and is 8% hydrochloric acid pickler, the hydrochloric acid pickler temperature is 75 ℃ in the 3rd section pickling tank, the length of every section pickling tank is 9 meters, and steel band is 30 meters/minute in the travelling speed of pickling unit;
B, steel band carry out the secondary heat water-spraying and clean after pickling, the hot water temperature when first step heat water-spraying cleans is 50 ℃, and the hot water temperature when second stage heat water-spraying cleans is 60 ℃;
C, secondary heat water-spraying carry out passivation after cleaning, and Sodium Nitrite and water are mixed with weight concentration in deactivation slot and are 8% sodium nitrite passivation liquid, and the passivating solution temperature is 50 ℃ during passivation;
Carry out hot-air seasoning after d, the passivation, hot blast temperature was 100 ℃ when hot-air seasoning was handled;
It is cold rolling that steel band behind e, the hot-air seasoning adopts four roller high precision reversable mills to carry out the first time, to adopt QuakerolC420-1 cold-rolled lubricating oil that Wuxi Kui Ke chemistry company limited provides and water to be mixed with weight concentration be 4% cold-rolled lubricating oil emulsion to used lubricating and cooling agent when for the first time cold rolling, the temperature of cold-rolled lubricating oil emulsion is 55 ℃, steel band is cold-rolled to 0.35mm work in-process thickness steel band through 7 passages, the first passage rolling mill speed is 70 meters/minute, and each passage rolling mill speed is 350 meters/minute afterwards; The cold rolling total draft of steel band is 88%;
F, through the processing of on slitting line, cutting edge of the work in-process thickness steel band after the once cold rolling;
G, the work in-process thickness steel band of handling through side cut carry out uncoiling on the degreasing unit, work in-process thickness steel band after the uncoiling is handled at the indoor spray degreasing that carries out of the degreasing of degreasing unit, Gardoclean S 5160/1 grease-removing agent and the water that during spray degreasing Shanghai Kai Miteer chemical company limited are provided are mixed with the grease-removing agent skim soln that contains 9g/l, skim soln temperature during spray degreasing is 85 ℃, and work in-process thickness steel band travelling speed in the degreasing unit is 30 meters/minute;
H, work in-process thickness steel band carry out heat water-spraying's cleaning behind spray degreasing, the hot water temperature during spray Cleaning for High Capacity is 45 ℃;
Carry out hot-air seasoning after i, heat water-spraying clean and handle, hot blast temperature was 100 ℃ when hot-air seasoning was handled;
Work in-process thickness steel band after j, oven dry are handled adopts bell type annealing furnace to carry out anneal, and annealing temperature is 620 ℃, and the annealing soaking time is 12 hours, uses volume content to be 25%N during annealing
2And 75%H
2Nitrogen hydrogen shielding gas;
It is cold rolling that work in-process thickness steel band after k, the anneal adopts four roller high precision reversable mills to carry out the second time, used lubricating and cooling agent adopt Wuxi City newly to revive the pure ROLLING OIL of 5# that grease company limited provides when for the second time cold rolling, 0.35mm work in-process thickness steel band is cold-rolled to 0.25mm finished product thickness steel band, four roller high precision reversable mill speed are 90 meters/minute
L, the 0.25mm finished product thickness steel band after will be for the second time cold rolling adopt the straightening machine to carry out stretch-bending straightening, take the permanent control mode of extending, and unit elongation is 0.6%, and travelling speed is 120 meters/minute;
0.25mm finished product thickness steel band behind m, the stretch-bending straightening can carry out slitting cuts, and obtains the finished width steel band.
Adopt the product of above-mentioned explained hereafter, its key technical indexes can reach:
(1) thickness deviation: 0.25
± 0.01Mm,
(2) width difference: 405
± 0.10Mm;
(3) hardness (1/2 is hard): (140～170) HV
0.3
(4) roughness :≤0.50mm;
(5) appearance surfaces: defectives such as color and luster uniformity, no color differnece, nothing scratch, no slip line.
Embodiment 3
It is that the coils of hot-rolled steel of SPHC is starting material that the technology of present embodiment is selected the trade mark for use, and carbon content is 0.02%, and thickness is 3.0mm, and width is 490mm, and finished product steel belt thickness is 0.40mm, and state is 1/2 hard, and hardness is 140～170HV
0.3
The present invention adopts following processing step:
A, to thickness is 3.0mm, carbon content is carried out uncoiling at 0.02% coils of hot-rolled steel on the pickling unit, steel band after the uncoiling carries out chlorohydric acid pickling in three sections pickling tanks of pickling unit handles, in first section pickling tank hydrochloric acid and water is mixed with weight concentration during pickling and is 10% hydrochloric acid pickler, the hydrochloric acid pickler temperature is 75 ℃ in first section pickling tank, in second section pickling tank hydrochloric acid and water is mixed with weight concentration during pickling and is 10% hydrochloric acid pickler, the hydrochloric acid pickler temperature is 70 ℃ in second section pickling tank, in the 3rd section pickling tank hydrochloric acid and water is mixed with weight concentration during pickling and is 15% hydrochloric acid pickler, the hydrochloric acid pickler temperature is 65 ℃ in the 3rd section pickling tank, the length of every section pickling tank is 9 meters, and steel band is 40 meters/minute in the travelling speed of pickling unit;
B, steel band carry out the secondary heat water-spraying and clean after pickling, the hot water temperature when first step heat water-spraying cleans is 30 ℃, and the hot water temperature when second stage heat water-spraying cleans is 30 ℃;
C, secondary heat water-spraying carry out passivation after cleaning, and Sodium Nitrite and water are mixed with weight concentration in deactivation slot and are 10% sodium nitrite passivation liquid, and the passivating solution temperature is 70 ℃ during passivation;
Carry out hot-air seasoning after d, the passivation, hot blast temperature was 120 ℃ when hot-air seasoning was handled;
It is cold rolling that steel band behind e, the hot-air seasoning adopts four roller high precision reversable mills to carry out the first time, to adopt QuakerolC420-1 cold-rolled lubricating oil that Wuxi Kui Ke chemistry company limited provides and water to be mixed with weight concentration be 2% cold-rolled lubricating oil emulsion to used lubricating and cooling agent when for the first time cold rolling, the temperature of cold-rolled lubricating oil emulsion is 45 ℃, steel band is cold-rolled to 0.57mm work in-process thickness steel band through 5 passages, the first passage rolling mill speed is 60 meters/minute, and each passage rolling mill speed is 250 meters/minute afterwards; The cold rolling total draft of steel band is 81%;
F, through the processing of on slitting line, cutting edge of the work in-process thickness steel band after the once cold rolling;
G, the work in-process thickness steel band of handling through side cut carry out uncoiling on the degreasing unit, work in-process thickness steel band after the uncoiling is handled at the indoor spray degreasing that carries out of the degreasing of degreasing unit, Gardoclean S 5160/1 grease-removing agent and the water that during spray degreasing Shanghai Kai Miteer chemical company limited are provided are mixed with the grease-removing agent skim soln that contains 11g/l, skim soln temperature during spray degreasing is 60 ℃, and work in-process thickness steel band travelling speed in the degreasing unit is 40 meters/minute;
H, work in-process thickness steel band carry out heat water-spraying's cleaning behind spray degreasing, the hot water temperature during spray Cleaning for High Capacity is 60 ℃;
Carry out hot-air seasoning after i, heat water-spraying clean and handle, hot blast temperature was 120 ℃ when hot-air seasoning was handled;
Work in-process thickness steel band after j, oven dry are handled adopts bell type annealing furnace to carry out anneal, and annealing temperature is controlled at 630 ℃, and the annealing soaking time is 11 hours, uses volume content to be 25%N during annealing
2And 75%H
2Nitrogen hydrogen shielding gas;
It is cold rolling that work in-process thickness steel band after k, the anneal adopts four roller high precision reversable mills to carry out the second time, used lubricating and cooling agent adopt Wuxi City newly to revive the pure ROLLING OIL of 5# that grease company limited provides when for the second time cold rolling, 0.57mm work in-process thickness steel band is cold-rolled to 0.40mm finished product thickness steel band, four roller high precision reversable mill speed are 80 meters/minute
L, the 0.40mm finished product thickness steel band after will be for the second time cold rolling adopt the straightening machine to carry out stretch-bending straightening, take the permanent control mode of extending, and unit elongation is 0.5%, and travelling speed is 150 meters/minute;
0.40mm finished product thickness steel band behind m, the stretch-bending straightening can carry out slitting cuts, and obtains the finished width steel band.
Adopt the product of above-mentioned explained hereafter, its key technical indexes can reach:
(1) thickness deviation: 0.40
± 0.01Mm,
(2) width difference: 94
0/-0.15Mm;
(3) hardness (1/2 is hard): (140～170) HV
0.3
(4) roughness :≤0.50mm;
(5) appearance surfaces: defectives such as color and luster uniformity, no color differnece, nothing scratch, no slip line.
Claims (1)
1. the production technique of a high-accuracy cold-rolling carbon-steel steel belt for electronic industry is characterized in that this production technique comprises the steps:
A, to thickness is 2.75～3.0mm, carbon content is carried out uncoiling at the coils of hot-rolled steel of 0.02%～0.05% scope on the pickling unit, steel band after the uncoiling carries out chlorohydric acid pickling in three sections pickling tanks of pickling unit handles, in first section pickling tank hydrochloric acid and water is mixed with weight concentration during pickling and is 5%～10% hydrochloric acid pickler, the hydrochloric acid pickler temperature is controlled at 75～80 ℃ in first section pickling tank, in second section pickling tank hydrochloric acid and water is mixed with weight concentration during pickling and is 8%～10% hydrochloric acid pickler, the hydrochloric acid pickler temperature is controlled at 70～75 ℃ in second section pickling tank, in the 3rd section pickling tank hydrochloric acid and water is mixed with weight concentration during pickling and is 8%～15% hydrochloric acid pickler, the hydrochloric acid pickler temperature is controlled at 65～75 ℃ in the 3rd section pickling tank, the length of every section pickling tank is 9 meters, and steel band is 30～40 meters/minute in the travelling speed of pickling unit;
B, steel band carry out the secondary heat water-spraying and clean after pickling, the hot water temperature when first step heat water-spraying cleans is controlled at 30～50 ℃, and the hot water temperature when second stage heat water-spraying cleans is controlled at 30～60 ℃;
C, secondary heat water-spraying carry out passivation after cleaning, and Sodium Nitrite and water are mixed with weight concentration in deactivation slot and are 8%～10% sodium nitrite passivation liquid, and the passivating solution temperature is controlled at 50～70 ℃ during passivation;
Carry out hot-air seasoning after d, the passivation, hot blast temperature was 100～120 ℃ when hot-air seasoning was handled;
It is cold rolling that steel band behind e, the hot-air seasoning adopts four roller high precision reversable mills to carry out the first time, to adopt cold-rolled lubricating oil and water to be mixed with weight concentration be 2%～4% cold-rolled lubricating oil emulsion to used lubricating and cooling agent when for the first time cold rolling, the temperature of cold-rolled lubricating oil emulsion is controlled at 45～55 ℃, steel band is cold-rolled to 0.28～0.57mm work in-process thickness through a plurality of passages, the first passage rolling mill speed is controlled at 60～80 meters/minute, and each passage rolling mill speed is controlled at 250～350 meters/minute afterwards;
F, through the processing of on slitting line, cutting edge of the work in-process thickness steel band after the once cold rolling;
G, the work in-process thickness steel band of handling through side cut carry out uncoiling on the degreasing unit, work in-process thickness steel band after the uncoiling is handled at the indoor spray degreasing that carries out of the degreasing of degreasing unit, during spray degreasing, grease-removing agent and water are mixed with the grease-removing agent skim soln that contains 9g/l～11g/l, skim soln temperature during spray degreasing is 60～85 ℃, and work in-process thickness steel band travelling speed in the degreasing unit is 30～40 meters/minute;
H, work in-process thickness steel band carry out heat water-spraying's cleaning behind spray degreasing, the hot water temperature during spray Cleaning for High Capacity is 45～60 ℃;
Carry out hot-air seasoning after i, heat water-spraying clean and handle, hot blast temperature was 100～120 ℃ when hot-air seasoning was handled;
Work in-process thickness steel band after j, oven dry are handled adopts bell type annealing furnace to carry out anneal, and annealing temperature is controlled at 620～640 ℃, and the annealing soaking time was controlled at 10～12 hours, used volume content to be 25%N during annealing
2And 75%H
2Nitrogen hydrogen shielding gas;
It is cold rolling that work in-process thickness steel band after k, the anneal adopts four roller high precision reversable mills to carry out the second time, 0.28～0.57mm work in-process thickness steel band is cold-rolled to 0.20～0.40mm finished product thickness steel band, and four roller high precision reversable mill speed control are at 80～100 meters/minute;
L, the finished product thickness steel band behind secondary cold-rolling adopt the straightening machine to carry out stretch-bending straightening, and elongation control is 0.5%～0.8%, and travelling speed is controlled at 100～150 meters/minute;
Finished product thickness steel band behind m, the stretch-bending straightening can carry out slitting cuts, and obtains the finished width steel band.
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| CN2010102078727A CN101871105B (en) | 2010-06-24 | 2010-06-24 | Production technique of high-accuracy cold-rolling carbon-steel steel belt for electronic industry |
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| CN2010102078727A CN101871105B (en) | 2010-06-24 | 2010-06-24 | Production technique of high-accuracy cold-rolling carbon-steel steel belt for electronic industry |
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| CN102658294B (en) * | 2012-05-09 | 2015-09-02 | 永鑫精密材料（无锡）有限公司 | The very thin steel band of toy industry mild steel precision cold-rolled, its process and uses thereof |
| CN103255429A (en) * | 2013-04-06 | 2013-08-21 | 莱芜市泰山冷轧板有限公司 | Pickling method of hot rolled steel strip |
| CN103726062A (en) * | 2013-12-20 | 2014-04-16 | 鞍钢股份有限公司 | Pickling technology of high-strength steel plate |
| CN105256323B (en) * | 2015-11-04 | 2018-01-26 | 攀钢集团攀枝花钢铁研究院有限公司 | The continuous acid-washing method of hot-rolled dual-phase steel |
| CN105903763B (en) * | 2015-11-26 | 2018-02-23 | 江阴科玛金属制品有限公司 | The production method of cold-reduced sheet |
| CN105798061B (en) * | 2016-03-23 | 2018-03-16 | 天津炬坤金属科技有限公司 | Wide specular light black plate cold rolling process in one kind 0.05~0.1mm ultra-thin accurates |
| CN115121609B (en) * | 2022-06-29 | 2023-04-28 | 山东新美达科技材料有限公司 | Manufacturing method and equipment for 0.06mm cold rolled steel foil |
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| CN101716594A (en) * | 2009-12-11 | 2010-06-02 | 永鑫精密材料（无锡）有限公司 | Production process of precise stainless steel band for vehicle sealing pad |
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