CN108246826A - The production method of desulphurization denitration environmental protection equipment Special precision stainless steel band - Google Patents
The production method of desulphurization denitration environmental protection equipment Special precision stainless steel band Download PDFInfo
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- CN108246826A CN108246826A CN201810028785.1A CN201810028785A CN108246826A CN 108246826 A CN108246826 A CN 108246826A CN 201810028785 A CN201810028785 A CN 201810028785A CN 108246826 A CN108246826 A CN 108246826A
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- stainless steel
- ferrite
- steel band
- environmental protection
- protection equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/38—Control of flatness or profile during rolling of strip, sheets or plates using roll bending
-
- 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
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a kind of production methods of desulphurization denitration environmental protection equipment Special precision stainless steel band, by making eight essence control working roll, breaking down, cleaning by degreasing, bright annealing, finish rolling, cleaning by degreasing, bright annealing, leveling processes, 0.2~0.3 μ of surface roughness Ra is made, tensile strength ＞ 480Mpa, elongation percentage ＞ 28%, the desulphurization denitration environmental protection equipment Special precision stainless steel band of neutral salt spray test time ＞ 96 hours, unevenness≤1mm/M.The present invention is using using bright annealing twice, cleaning by degreasing twice, finish rolling of roughing, and management and control is carried out to the plate shape and physical property of stainless steel band in every procedure of manufacturing process, desulphurization denitration environmental protection equipment Special precision stainless steel band obtained, product cold rolling production efficiency can be improved, promotes the indexs such as stainless steel band tensile strength, elongation percentage, corrosion resistance, plate shape.
Description
Technical field
The present invention relates to a kind of production methods of ferritic stainless steel band.More particularly to a kind of desulphurization denitration environmental protection equipment
The production method of Special precision stainless steel band.
Background technology
Desulphurization denitration environmental protection equipment precise stainless steel strip is mainly used in steam power plant flue dust filter net device, system
Tensile strength, elongation percentage, corrosion resistance, the injustice of special precise stainless steel strip in the steam power plant flue dust filter net device of work
Some physical performance indexs such as degree, hardness have direct influence to the correlated performance of steam power plant flue dust filter net device.
The production method of traditional desulphurization denitration environmental protection equipment precise stainless steel strip is produced using a rolling process, is annealed using low temperature low speed,
Flattened control unevenness again.This process is primarily present with next shortcoming：(1) fluctuation of stainless steel band physical property is big,
Tensile strength and elongation percentage are low, stretch easily rupturable.(2) low temperature low speed annealing low production efficiency.(3) stainless steel band plate shape is poor.
(4) stainless steel corrosion resistance is poor.
Invention content
The technical problem to be solved in the present invention is to provide a kind of systems of desulphurization denitration environmental protection equipment Special precision stainless steel band
Make method, product cold rolling production efficiency can be improved, promote the indexs such as stainless steel band tensile strength, elongation percentage, corrosion resistance, plate shape.
In order to achieve the above objectives, the technical solution adopted by the present invention is：A kind of desulphurization denitration environmental protection equipment Special precision is not
The production method of rust steel band, includes the following steps：
Step 1: make essence control working roll：It is first 0.2~0.3 by operation roll of mill preliminary working to its surface roughness Ra
μm, the essence control working roll of case hardness HV500~700；
Step 2: breaking down：Using 20 roller precision cold-rolled units, discharging passage is using gained essence control work in step 1
The hot-rolled stainless steel raw material of 2.5~3.0mm thickness, is rolled into that thickness is 0.6~1.0mm, surface roughness Ra is 0.2~0.3 by roller
μm ferrite precise stainless steel strip；
Step 3: cleaning by degreasing：The ferrite precise stainless steel strip that gained thickness is 0.6-1.0mm in step 2 passes through
Cleaning by degreasing obtains semi-finished product ferrite precise stainless steel strip of any surface finish without greasy dirt；
Step 4: bright annealing：The ferrite for the bright and clean no greasy dirt that gained thickness is 0.6-1.0mm is accurate in step 3
The uniform ferrite precision of stress is not using carrying out Slow cooling after bright annealing furnace annealing, after being recrystallized for stainless steel band
Become rusty steel band；
Step 5: finish rolling：Using 20 roller precision cold-rolled units, last a time uses gained essence control in step 1
Working roll, by step 4 gained 0.6~1.0mm thickness ferrite precise stainless steel strip be rolled into thickness be 0.2~0.3mm,
The ferrite precise stainless steel strip of 0.2~0.3 μm of surface roughness Ra；
Step 6: cleaning by degreasing：The ferrite precise stainless steel strip that gained thickness is 0.2-0.3mm in step 5 passes through
Cleaning by degreasing obtains ferrite precise stainless steel strip of any surface finish without greasy dirt；
Step 7: bright annealing：Gained ferrite precise stainless steel strip is laggard using bright annealing furnace annealing in step 6
Row Slow cooling, the uniform ferrite precise stainless steel strip of stress after being recrystallized；
Step 8: leveling：Using withdrawal straightening machine, the ferrite precise stainless steel strip of gained in step 7 is subjected to leveling, system
0.2~0.3 μ of surface roughness Ra is obtained, tensile strength ＞ 480Mpa, elongation percentage ＞ 28%, the neutral salt spray test time, ＞ 96 was small
When, the desulphurization denitration environmental protection equipment Special precision stainless steel band of unevenness≤1mm/M.
Wherein, the grinding wheel granularity in step 1 is 180#, stock removal 0.02mm, workpiece rotational frequency 600r/min.
Wherein, the roll-force in step 2 is 1500~3000KN, and rolling tensile force is 300~450KN, and mill speed is
300~450m/min, ROLLING OIL jet velocity be 200L/min, 40-50 DEG C of ROLLING OIL oil temperature.
Wherein, the alkali liquid temperature of cleaning by degreasing is 60-80 DEG C, lye PH12-13, drying temperature 90-110 in step 3
DEG C, cleaning speed 120-150m/min.
Wherein, ferrite precise stainless steel strip by the speed of bright annealing furnace is 15~20m/min in step 4, institute
Protective gas pressure in bright annealing furnace is stated as 1200~1500Pa, the material temperature in the bright annealing furnace for 820~
850℃。
Wherein, the roll-force in step 5 is 1000~1500KN, and rolling tensile force is 200~350KN, and mill speed is
250~350m/min, ROLLING OIL jet velocity be 200L/min, 40-50 DEG C of ROLLING OIL oil temperature.
Wherein, the alkali liquid temperature of the cleaning by degreasing in step 6 is 70-80 DEG C, lye PH12-13, drying temperature 100-
110 DEG C, cleaning speed 100-120m/min.
Wherein, ferrite precise stainless steel strip by the speed of bright annealing furnace is 22~24m/min in step 7, institute
Protective gas pressure in bright annealing furnace is stated as 1200~1500Pa, the material temperature in the bright annealing furnace for 815~
835℃。
Wherein, the elongation percentage of withdrawal straightening machine described in step 8 is 0.3%~0.5%, tension 8-12KN.
Since above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：
1. in the production method of the present invention, step 1 by operation roll of mill be machined to its surface roughness Ra for 0.2~
0.3 μm, the essence control working roll of case hardness HV500~700 in step 2 and the step 5 operation of rolling, improves roll and plate
Between friction and contact conditions be smoothed out with being conducive to rolling mill practice, improve plate shape and simultaneously improve board surface quality.
2. in the production method of the present invention, using bright annealing twice, cleaning by degreasing twice, finish rolling of a roughing,
And management and control, desulphurization denitration ring obtained are carried out to the plate shape and physical property of stainless steel band in every procedure of manufacturing process
Device-specific precise stainless steel strip is protected, can improve product cold rolling production efficiency, promotes stainless steel band tensile strength, elongation percentage, resistance to
The indexs such as corrosion, plate shape.
Specific embodiment
With reference to embodiment, the invention will be further described：
Embodiment one：A kind of production method of desulphurization denitration environmental protection equipment Special precision stainless steel band, including walking as follows
Suddenly：
Step 1: make essence control working roll：It is first 0.2~0.3 by operation roll of mill preliminary working to its surface roughness Ra
μm, the essence control working roll of case hardness HV500~700；
Step 2: breaking down：Using 20 roller precision cold-rolled units, discharging passage is using gained essence control work in step 1
The hot-rolled stainless steel raw material of 2.5~3.0mm thickness, is rolled into that thickness is 0.6~1.0mm, surface roughness Ra is 0.2~0.3 by roller
μm ferrite precise stainless steel strip；
Step 3: cleaning by degreasing：The ferrite precise stainless steel strip that gained thickness is 0.6-1.0mm in step 2 passes through
Cleaning by degreasing obtains semi-finished product ferrite precise stainless steel strip of any surface finish without greasy dirt；
Step 4: bright annealing：The ferrite for the bright and clean no greasy dirt that gained thickness is 0.6-1.0mm is accurate in step 3
Stainless steel band obtains ferrite precise stainless steel strip using Slow cooling is carried out after bright annealing furnace annealing；
Step 5: finish rolling：Using 20 roller precision cold-rolled units, last a time uses gained essence control in step 1
Working roll, by step 4 gained 0.6~1.0mm thickness ferrite precise stainless steel strip be rolled into thickness be 0.2~0.3mm,
The ferrite precise stainless steel strip of 0.2~0.3 μm of surface roughness Ra；
Step 6: cleaning by degreasing：The ferrite precise stainless steel strip that gained thickness is 0.2-0.3mm in step 5 passes through
Cleaning by degreasing obtains ferrite precise stainless steel strip of any surface finish without greasy dirt；
Step 7: bright annealing：Gained ferrite precise stainless steel strip is laggard using bright annealing furnace annealing in step 6
Row Slow cooling, the uniform ferrite precise stainless steel strip of stress after being recrystallized；
Step 8: leveling：Using level(l)ing machine, the ferrite precise stainless steel strip of gained in step 7 is subjected to leveling, system
0.2~0.3 μ of surface roughness Ra is obtained, tensile strength ＞ 480Mpa, elongation percentage ＞ 28%, the neutral salt spray test time, ＞ 96 was small
When, the desulphurization denitration environmental protection equipment Special precision stainless steel band of unevenness≤1mm/M.
Wherein, the grinding wheel granularity in step 1 is 180#, stock removal 0.02mm, workpiece rotational frequency 600r/min.
Wherein, the roll-force in step 2 is 1500~3000KN, and rolling tensile force is 300~450KN, and mill speed is
300~450m/min, ROLLING OIL jet velocity be 200L/min, 40-50 DEG C of ROLLING OIL oil temperature.
Wherein, the alkali liquid temperature of cleaning by degreasing is 60-80 DEG C, lye PH12-13, drying temperature 90-110 in step 3
DEG C, cleaning speed 120-150m/min.
Wherein, ferrite precise stainless steel strip by the speed of bright annealing furnace is 15~20m/min in step 4, institute
Protective gas pressure in bright annealing furnace is stated as 1200~1500Pa, the material temperature in the bright annealing furnace for 820~
850℃。
Wherein, the roll-force in step 5 is 1000~1500KN, and rolling tensile force is 200~350KN, and mill speed is
250~350m/min, ROLLING OIL jet velocity be 200L/min, 40-50 DEG C of ROLLING OIL oil temperature.
Wherein, the alkali liquid temperature of the cleaning by degreasing in step 6 is 70-80 DEG C, lye PH12-13, drying temperature 100-
110 DEG C, cleaning speed 100-120m/min.
Wherein, ferrite precise stainless steel strip by the speed of bright annealing furnace is 22~24m/min in step 7, institute
Protective gas pressure in bright annealing furnace is stated as 1200~1500Pa, the material temperature in the bright annealing furnace for 815~
835℃。
Wherein, the elongation percentage of withdrawal straightening machine described in step 8 is 0.3%~0.5%, tension 8-12KN.
Since above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：
1. in the production method of the present invention, step 1 by operation roll of mill be machined to its surface roughness Ra for 0.2~
0.3 μm, the essence control working roll of case hardness HV500~700 in step 2 and the step 5 operation of rolling, improves roll and plate
Between friction and contact conditions be smoothed out with being conducive to rolling mill practice, improve plate shape and simultaneously improve board surface quality.
2. in the production method of the present invention, using bright annealing twice, cleaning by degreasing twice, finish rolling of a roughing,
And management and control, desulphurization denitration ring obtained are carried out to the plate shape and physical property of stainless steel band in every procedure of manufacturing process
Device-specific precise stainless steel strip is protected, can improve product cold rolling production efficiency, promotes stainless steel band tensile strength, elongation percentage, resistance to
The indexs such as corrosion, plate shape.
It should be further noted that：In the various stainless steel band production methods of this enterprise invention, it is required for per pass work
Each parameter in sequence step and its step carries out essence control adjustment, to meet the requirement of stable quality, that is to say, that different cultivars
Stainless steel band production method process and its step in each parameter be different, be otherwise difficult to ensure that product quality.No
The experiment ability by us many times is needed with each parameter in the stainless steel band production method process and its step of kind
It can achieve the effect that above-mentioned satisfaction.
Claims (9)
1. a kind of production method of the out of stock environmental protection equipment Special precision stainless steel band of desulfurization, it is characterised in that：Include the following steps：
Step 1: make essence control working roll：It is first 0.2~0.3 μm by operation roll of mill preliminary working to its surface roughness Ra, table
The essence control working roll of surface hardness HV500~700；
Step 2: breaking down：Using 20 roller precision cold-rolled units, discharging passage, will using gained essence control working roll in step 1
The hot-rolled stainless steel raw material of 2.5~3.0mm thickness is rolled into the iron that thickness is 0.6~1.0mm, surface roughness Ra is 0.2~0.3 μm
Ferritic precise stainless steel strip；
Step 3: cleaning by degreasing：The ferrite precise stainless steel strip that gained thickness is 0.6-1.0mm in step 2 is clear by degreasing
It washes, obtains semi-finished product ferrite precise stainless steel strip of any surface finish without greasy dirt；
Step 4: bright annealing：The ferrite precision stainless steel for the bright and clean no greasy dirt that gained thickness is 0.6-1.0mm in step 3
Band after bright annealing furnace annealing using carrying out Slow cooling, the uniform ferrite precise stainless steel strip of stress after being recrystallized；
Step 5: finish rolling：Using 20 roller precision cold-rolled units, last a time uses gained essence control work in step 1
The ferrite precise stainless steel strip of 0.6~1.0mm thickness of gained in step 4 is rolled into thickness as 0.2~0.3mm, surface by roller
The ferrite precise stainless steel strip of 0.2~0.3 μm of roughness Ra；
Step 6: cleaning by degreasing：The ferrite precise stainless steel strip that gained thickness is 0.2-0.3mm in step 5 is clear by degreasing
It washes, obtains ferrite precise stainless steel strip of any surface finish without greasy dirt；
Step 7: bright annealing：Gained ferrite precise stainless steel strip after bright annealing furnace annealing using being delayed in step 6
Slow cool down, the uniform ferrite precise stainless steel strip of stress after being recrystallized；
Step 8: straightening：Using level(l)ing machine, the ferrite precise stainless steel strip of gained in step 7 is subjected to leveling, table is made
Surface roughness Ra0.2~0.3 μm, tensile strength ＞ 480Mpa, elongation percentage ＞ 28%, neutral salt spray test time ＞ 96 hours,
The desulphurization denitration environmental protection equipment Special precision stainless steel band of unevenness≤1mm/M.
2. the production method of desulphurization denitration environmental protection equipment Special precision stainless steel band according to claim 1, feature exist
In：Preliminary working parameter in step 1 is：Grinding wheel granularity is 180#, stock removal 0.02mm, workpiece rotational frequency 600r/min.
3. the production method of desulphurization denitration environmental protection equipment Special precision stainless steel band according to claim 1, feature exist
In：Breaking down parameter in step 2 is：Roll-force is 1500~3000KN, and rolling tensile force is 300~450KN, and mill speed is
300~450m/min, ROLLING OIL jet velocity be 200L/min, 40-50 DEG C of ROLLING OIL oil temperature.
4. the production method of desulphurization denitration environmental protection equipment Special precision stainless steel band according to claim 1, feature exist
In：The alkali liquid temperature of cleaning by degreasing is 60-80 DEG C, lye PH12-13 in step 3,90-110 DEG C of drying temperature, cleaning speed
120-150m/min。
5. the production method of desulphurization denitration environmental protection equipment Special precision stainless steel band according to claim 1, feature exist
In：By the speed of bright annealing furnace it is 15~20m/min when ferrite precise stainless steel strip is annealed in step 4, the light
Protective gas pressure in annealing furnace is 1200~1500Pa, and the material temperature in the bright annealing furnace is 820~850 DEG C.
6. the production method of desulphurization denitration environmental protection equipment Special precision stainless steel band according to claim 1, feature exist
In：Finish rolling parameter in step 5 is：Roll-force is 1000~1500KN, and rolling tensile force is 200~350KN, and mill speed is
250~350m/min, ROLLING OIL jet velocity be 200L/min, 40-50 DEG C of ROLLING OIL oil temperature.
7. the production method of desulphurization denitration environmental protection equipment Special precision stainless steel band according to claim 1, feature exist
In：The alkali liquid temperature of cleaning by degreasing in step 6 is 70-80 DEG C, lye PH12-13,100-110 DEG C of drying temperature, cleaning speed
Spend 100-120m/min.
8. the production method of desulphurization denitration environmental protection equipment Special precision stainless steel band according to claim 1, feature exist
In：By the speed of bright annealing furnace it is 22~24m/min when ferrite precise stainless steel strip is annealed in step 7, the light
Protective gas pressure in annealing furnace is 1200~1500Pa, and the material temperature in the bright annealing furnace is 815~835 DEG C.
9. the production method of desulphurization denitration environmental protection equipment Special precision stainless steel band according to claim 1, feature exist
In：The elongation percentage of level(l)ing machine described in step 8 is 0.3%~0.5%, tension 8-12KN.
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| CN201810028785.1A CN108246826A (en) | 2018-01-16 | 2018-01-16 | The production method of desulphurization denitration environmental protection equipment Special precision stainless steel band |
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| CN201810028785.1A CN108246826A (en) | 2018-01-16 | 2018-01-16 | The production method of desulphurization denitration environmental protection equipment Special precision stainless steel band |
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Citations (5)
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|---|---|---|---|---|
| CN1291922A (en) * | 1998-02-25 | 2001-04-18 | 尤吉纳股份有限公司 | Installation for making cold-rolled stainless steel bands |
| CN101817017A (en) * | 2010-03-25 | 2010-09-01 | 江苏呈飞精密合金股份有限公司 | Precision forming method of ultrathin stainless steel substrate for flexible product, obtained substrate and application thereof |
| CN102876991A (en) * | 2012-09-24 | 2013-01-16 | 无锡市方正金属捆带有限公司 | Method for manufacturing stainless steel band for spinner reed |
| CN103667652A (en) * | 2013-11-30 | 2014-03-26 | 无锡宝顺不锈钢有限公司 | Production method of stainless steel belt for electronic film |
| CN107042235A (en) * | 2017-06-02 | 2017-08-15 | 江苏甬金金属科技有限公司 | The preparation method of very thin ferritic stainless steel band with glossy surface |
-
2018
- 2018-01-16 CN CN201810028785.1A patent/CN108246826A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1291922A (en) * | 1998-02-25 | 2001-04-18 | 尤吉纳股份有限公司 | Installation for making cold-rolled stainless steel bands |
| CN101817017A (en) * | 2010-03-25 | 2010-09-01 | 江苏呈飞精密合金股份有限公司 | Precision forming method of ultrathin stainless steel substrate for flexible product, obtained substrate and application thereof |
| CN102876991A (en) * | 2012-09-24 | 2013-01-16 | 无锡市方正金属捆带有限公司 | Method for manufacturing stainless steel band for spinner reed |
| CN103667652A (en) * | 2013-11-30 | 2014-03-26 | 无锡宝顺不锈钢有限公司 | Production method of stainless steel belt for electronic film |
| CN107042235A (en) * | 2017-06-02 | 2017-08-15 | 江苏甬金金属科技有限公司 | The preparation method of very thin ferritic stainless steel band with glossy surface |
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| Title |
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| 周琳等: "《中国长材轧制技术与装备》", 30 June 2014, 机械工业出版社 * |
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Application publication date: 20180706 |