CN114951313A - Processing technology and device for low-carbon molybdenum-containing high-corrosion-resistance austenitic stainless steel band - Google Patents
Processing technology and device for low-carbon molybdenum-containing high-corrosion-resistance austenitic stainless steel band Download PDFInfo
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- CN114951313A CN114951313A CN202210557969.3A CN202210557969A CN114951313A CN 114951313 A CN114951313 A CN 114951313A CN 202210557969 A CN202210557969 A CN 202210557969A CN 114951313 A CN114951313 A CN 114951313A
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- cleaning roller
- cold rolling
- stainless steel
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- molybdenum
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- 229910000963 austenitic stainless steel Inorganic materials 0.000 title claims abstract description 30
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 27
- 229910052750 molybdenum Inorganic materials 0.000 title claims abstract description 27
- 239000011733 molybdenum Substances 0.000 title claims abstract description 27
- 238000005516 engineering process Methods 0.000 title claims abstract description 11
- 238000004140 cleaning Methods 0.000 claims abstract description 104
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 78
- 239000010959 steel Substances 0.000 claims abstract description 78
- 238000005097 cold rolling Methods 0.000 claims abstract description 70
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 15
- 230000007797 corrosion Effects 0.000 claims description 10
- 238000005260 corrosion Methods 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 238000005554 pickling Methods 0.000 claims description 6
- 238000000137 annealing Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 24
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 7
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 5
- 239000010935 stainless steel Substances 0.000 abstract description 4
- 230000002337 anti-port Effects 0.000 abstract description 2
- 238000009865 steel metallurgy Methods 0.000 abstract description 2
- 230000002045 lasting effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 15
- 239000000110 cooling liquid Substances 0.000 description 7
- 239000007921 spray Substances 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 241000883990 Flabellum Species 0.000 description 2
- 239000010960 cold rolled steel Substances 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000009688 liquid atomisation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
- B21B45/0275—Cleaning devices
- B21B45/0287—Cleaning devices removing solid particles, e.g. dust, rust
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- B08B1/12—
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- B08B1/32—
Abstract
The invention belongs to the technical field of stainless steel metallurgy, in particular to a processing technology and a device of a low-carbon molybdenum-containing high-corrosion-resistance austenitic stainless steel band, which comprises a fixed seat; the top of the fixed seat is fixedly connected with a feeding seat; the top of the fixed seat is fixedly connected with a material receiving seat; a plurality of first brackets are fixedly connected between the feeding seat and the receiving seat at the top of the fixed seat; the middle part of the first bracket is rotationally connected with a pair of cold rolling mechanisms; a plurality of second brackets are fixedly connected to one side of the middle part of the first bracket, which is close to the feeding seat; through being equipped with the cleaning roller, simultaneously because of the direction of rotation of cleaning roller and cold rolling mechanism be the antiport, the cleaning roller can be for lasting frictional state with the steel band this moment, scrapes impurity or metal fillings on the steel band off, reduces when the steel band is cold-rolled, can remain more mar problem on the surface, promotes the stability of steel band when cold-rolling, improves the yields.
Description
Technical Field
The invention belongs to the technical field of stainless steel metallurgy, and particularly relates to a processing technology and a device for a low-carbon molybdenum-containing high-corrosion-resistance austenitic stainless steel band.
Background
The stainless steel has good corrosion resistance, high toughness and higher high temperature resistance, and the austenitic stainless steel refers to the stainless steel with an austenitic structure at normal temperature. Austenitic stainless steels are non-magnetic and have high toughness and plasticity, but low strength.
A chinese patent publication No. CN101481778B discloses an austenitic stainless steel strip and a manufacturing method thereof, comprising the following chemical elements in percentage by weight: 0.04-0.12% of C, 0.4-1% of Si, 0.8-2% of Mn, less than or equal to 0.04% of P, less than or equal to 0.03% of S, 17-19% of Cr, 7-10% of Ni, 0.25-0.5% of Cu, and the balance of Fe and inevitable impurities.
When the austenitic stainless steel strip is produced and prepared, annealing processing is required after hot rolling, the step is from hot rolling procedure to cold rolling, in the long-time use process, impurities or metal chips drop on the steel strip in the steel strip transmission process, then when the steel strip is subjected to cold rolling, the impurities or the metal chips leave scratches on the steel strip, and further the problem of high defective rate after the steel strip is subjected to cold rolling is solved.
Therefore, the invention provides a processing technology and a device for a low-carbon molybdenum-containing high-corrosion-resistance austenitic stainless steel strip.
Disclosure of Invention
To remedy the deficiencies of the prior art, at least one of the technical problems set forth in the background is addressed.
The technical scheme adopted by the invention for solving the technical problem is as follows: the invention relates to a low-carbon molybdenum-containing high-corrosion-resistance austenitic stainless steel strip processing device which comprises a fixed seat; the top of the fixed seat is fixedly connected with a feeding seat; the top of the fixed seat is fixedly connected with a material receiving seat; a plurality of first brackets are fixedly connected between the feeding seat and the receiving seat at the top of the fixed seat; the middle part of the first support is rotatably connected with a pair of cold rolling mechanisms; a plurality of second brackets are fixedly connected to one side of the middle part of the first bracket, which is close to the feeding seat; one side, close to each other, of the second support is rotatably connected with a cleaning roller; the cold rolling mechanism and the cleaning roller are driven by a belt and a gear; the rotating direction of the cleaning roller is opposite to that of the cold rolling mechanism; at needs to the cold rolling in-process of steel band, place the cold rolling steel band book of needs on the pay-off seat, then guide the steel band to the collection roller of receiving the material seat top through a plurality of cold rolling mechanisms, at the in-process of steel band through cold rolling mechanism, the transmission of cold rolling mechanism accessible belt and gear, make the cleaning roller rotate simultaneously, the direction of rotation and the cold rolling mechanism because of the cleaning roller are the antiport this moment, the cleaning roller can be with the steel band for the state of continuous friction this moment, scrape impurity or the metal fillings on the steel band, the reduction is when the steel band is cold rolling, can remain more mar problem on the surface, promote the stability of steel band when cold rolling, the improvement yields.
Furthermore, a plurality of hairbrushes are fixedly connected to the middle part of the cleaning roller; through being equipped with a plurality of brushes in the middle part of the cleaning roller, can be when cleaning roller and cold rolling steel band contact clean, the brush can be with more impurity sweeping on the steel band, further promotes the steel band when cold rolling, the clean and tidy degree on surface.
Furthermore, a connecting rope is arranged among the plurality of hairbrushes; the connecting rope is connected to the middle part of the hairbrush; through being connected with between a plurality of brushes and connecting the rope, can reduce the dispersion degree of brush when brush and steel band contact, promote the dynamics of cleaning of brush, and then further reduce the impurity on brush surface and remain, stability when promoting the steel band cold rolling further promotes the yields.
Furthermore, the middle part of the cleaning roller is connected with a plurality of ejector rods in a sliding manner; an elastic belt is connected between the end part of the ejector rod and the inner side wall of the cleaning roller; the end part of the ejector rod and the middle part of the cleaning roller are connected with a high-temperature resistant spring; the middle part of the ejector rod is connected with the middle part of the connecting rope; through being equipped with the ejector pin in the middle part of the cleaning roller, can be when the cleaning roller rotates, the ejector pin tip can contact with the steel band, and the ejector pin can retract to cleaning roller inside this moment, and the ejector pin accessible realizes dragging to the brush to dragging of connecting the rope this moment, and brush middle part and tip can rub on the steel band many times this moment, further reduce the impurity on the steel band.
Furthermore, a plurality of fan blades are fixedly connected to the inner side wall of the cleaning roller; a plurality of vent holes are formed in the middle of the cleaning roller; during cold rolling, a cooling liquid atomization spray head is arranged near the end part of the cleaning roller to spray cooling liquid to the cleaning roller, and meanwhile, the fan blades are arranged in the cleaning roller, so that when the cleaning roller rotates, the fan blades drive air near the cleaning roller to flow, the temperature in the cleaning roller is reduced, the resilience of the elastic belt and the high-temperature-resistant spring is more stable, and the influence of high temperature on the elastic belt and the high-temperature-resistant spring is reduced; meanwhile, the cooling effect that the fan blades drive the air flow to conduct cooling can be further improved, meanwhile, the air flow driven by the fan blades can flow out of the ventilating holes, the air flowing out can blow the brush, the impurities in the middle of the brush are reduced, and the cleaning effect of the brush is kept.
Furthermore, a pull rope is connected to the end part of the ejector rod positioned in the cleaning roller; the other end of the pull rope penetrates through the cleaning roller and is connected with the middle part of the connecting rope; the pull rope is in sliding fit with the cleaning roller; through be connected with the stay cord between ejector pin tip and being connected the rope middle part, can further promote the ejector pin when contracting back, to the effect of dragging of connecting rope and brush, promote the brush and to the effect of cleaning of steel band, further reduce remaining of impurity on the steel band.
Furthermore, a shunting block is fixedly connected to the middle part of the cleaning roller; the flow dividing block is arranged in the cleaning roller, so that the air flow guided by the fan blades can be guided, and the flow stability of the air flow is improved.
Further, the end part of the ejector rod is rotatably connected with a roller; the roller wheels are arranged at the end parts of the ejector rods, so that sliding friction between the ejector rods and the steel belt can be replaced by rolling friction, and the problem of damage caused by contact between the ejector rods and the surface of the steel belt is reduced.
A low-carbon molybdenum-containing high-corrosion-resistance austenitic stainless steel strip processing technology is suitable for the low-carbon molybdenum-containing high-corrosion-resistance austenitic stainless steel strip processing device; the method comprises the following steps:
s1: 0.02-0.08% of C, 0.4-1% of Si, 0.8-2% of Mn, less than or equal to 0.04% of P, less than or equal to 0.03% of S, and Cr: 17-19%, Ni: 7-10%, Cu: 0.25-0.5 percent of Fe and the balance of Fe, continuously casting the smelted molten steel into a casting strip through a double-roll thin strip, and simultaneously controlling the cooling speed to be 19-38 ℃/s and the coiling temperature to be less than or equal to 610 ℃;
s2: pickling, and then sending the mixture into a cold rolling mechanism of cold rolling equipment for cold rolling, wherein the cold rolling reduction rate is controlled to be less than or equal to 16%;
s3: and annealing for multiple times again, controlling the temperature between 1000-1100 ℃, controlling the time for each time to be 3-8min, controlling the initial cold rolling reduction rate to be not less than 40%, and after the final cold rolling, carrying out acid pickling, flattening and longitudinal cutting to obtain a low-carbon molybdenum-containing high-corrosion-resistance austenitic stainless steel strip finished product.
The invention has the following beneficial effects:
1. according to the low-carbon molybdenum-containing high-corrosion-resistance austenitic stainless steel strip processing technology and device, the cleaning roller is arranged, and meanwhile, the cleaning roller and the cold rolling mechanism rotate in the opposite direction, so that the cleaning roller and the steel strip are in a continuous friction state, impurities or metal scraps on the steel strip are scraped, the problem that a large number of scratches are remained on the surface of the steel strip when the steel strip is subjected to cold rolling is solved, the stability of the steel strip during cold rolling is improved, and the yield is improved.
2. According to the processing technology and the device for the low-carbon molybdenum-containing high-corrosion-resistance austenitic stainless steel strip, the stay cord is connected between the end part of the ejector rod and the middle part of the connecting rope, so that the pulling effect of the connecting rope and the hairbrush when the ejector rod retracts can be further improved, the cleaning effect of the hairbrush on the steel strip is improved, and the residue of impurities on the steel strip is further reduced.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of the process of the present invention;
FIG. 2 is a front view of the processing apparatus of the present invention;
FIG. 3 is a schematic view showing the structure of a cold rolling mechanism according to the present invention;
FIG. 4 is a schematic view of the construction of the cleaning roller in the present invention;
FIG. 5 is a schematic cross-sectional view of a cleaning roller according to the present invention;
FIG. 6 is a cross-sectional view of a scrub roller of the present invention;
FIG. 7 is a partial schematic view of a carrier rod according to the present invention;
in the figure: 1. a fixed seat; 11. a feeding seat; 12. a material receiving seat; 13. a first bracket; 14. a cold rolling mechanism; 15. a second bracket; 16. a cleaning roller; 2. a brush; 3. connecting ropes; 4. a top rod; 41. an elastic band; 42. a high temperature resistant spring; 5. a fan blade; 51. a vent hole; 6. pulling a rope; 7. a shunting block; 8. and a roller.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example one
As shown in fig. 1 to 2, the device for processing the austenitic stainless steel strip with low carbon, molybdenum and high corrosion resistance according to the embodiment of the present invention includes a fixing base 1; the top of the fixed seat 1 is fixedly connected with a feeding seat 11; the top of the fixed seat 1 is fixedly connected with a material receiving seat 12; a plurality of first brackets 13 are fixedly connected between the feeding seat 11 and the receiving seat 12 at the top of the fixed seat 1; the middle part of the first bracket 13 is rotatably connected with a pair of cold rolling mechanisms 14; a plurality of second brackets 15 are fixedly connected to one side of the middle part of the first bracket 13, which is close to the feeding seat 11; a cleaning roller 16 is rotatably connected to one side of the second bracket 15, which is close to each other; the cold rolling mechanism 14 and the cleaning roller 16 are driven by a belt and a gear; the rotation direction of the cleaning roller 16 is opposite to that of the cold rolling mechanism 14; in the process of need to the cold rolling of steel band, place the steel band book that needs the cold rolling on pay-off seat 11, then guide the steel band to the collection roller at receipts material seat 12 top through a plurality of cold rolling mechanism 14, at the in-process of steel band process cold rolling mechanism 14, the transmission of 14 accessible belts of cold rolling mechanism and gear, make cleaning roller 16 rotate simultaneously, this moment be reverse rotation because of cleaning roller 16's direction of rotation and cold rolling mechanism 14, cleaning roller 16 can be with the steel band for continuous friction's state this moment, scrape impurity or the metal fillings on the steel band off, the reduction is when the steel band is cold rolled, can remain more mar problem on the surface, promote the stability of steel band when cold rolling, the yield is improved.
The middle part of the cleaning roller 16 is fixedly connected with a plurality of brushes 2; through being equipped with a plurality of brushes 2 in the middle part of cleaning roller 16, can be when cleaning roller 16 and cold-rolled steel strip contact are cleaned, more impurity on the steel band can be swept out to brush 2, further promotes the steel band when cold rolling, the clean and tidy degree on surface.
A connecting rope 3 is arranged among the plurality of hairbrushes 2; the connecting rope 3 is connected to the middle part of the hairbrush 2; through being connected with between a plurality of brushes 2 and connecting rope 3, can reduce brush 2's dispersion degree when brush 2 contacts with the steel band, promote brush 2's the dynamics of cleaning, and then further reduce the impurity on brush 2 surfaces and remain, promote the stability when the steel band is cold-rolled, further promote the yields.
The middle part of the cleaning roller 16 is connected with a plurality of ejector rods 4 in a sliding way; an elastic belt 41 is connected between the end part of the mandril 4 and the inner side wall of the cleaning roller 16; the end part of the mandril 4 and the middle part of the cleaning roller 16 are connected with a high temperature resistant spring 42; the middle part of the ejector rod 4 is connected with the middle part of the connecting rope 3; through being equipped with ejector pin 4 in the middle part of cleaning roller 16, can be when cleaning roller 16 rotates, 4 tip of ejector pin can contact with the steel band, and ejector pin 4 can be to 16 inside retractions of cleaning roller this moment, and 4 accessible of ejector pin are to dragging of connecting rope 3 this moment, realize dragging brush 2, and 2 middle parts of brush and tip can carry out the friction many times on the steel band this moment, further reduce the impurity on the steel band.
A plurality of fan blades 5 are fixedly connected to the inner side wall of the cleaning roller 16; a plurality of vent holes 51 are formed in the middle of the cleaning roller 16; during cold rolling, a cooling liquid atomizing spray head is arranged near the end part of the cleaning roller 16 to spray cooling liquid to the cleaning roller 16, and meanwhile, the fan blades 5 are arranged inside the cleaning roller 16, so that when the cleaning roller 16 rotates, the fan blades 5 drive gas near the cleaning roller 16 to flow, the temperature inside the cleaning roller 16 is reduced, the resilience of the elastic belt 41 and the high-temperature-resistant spring 42 is more stable, and the influence of high temperature on the elastic belt 41 and the high-temperature-resistant spring 42 is reduced; simultaneously there is spraying of coolant liquid, can further promote flabellum 5 and drive the air current and the cooling effect that goes on, the air current that flabellum 5 drove simultaneously can follow air vent 51 and flow out, and the gas that flows this moment can blast brush 2, and the impurity that reduces 2 middle parts of brush is remained, keeps cleaning effect of brush 2.
The end part of the mandril 4 positioned inside the cleaning roller 16 is connected with a pull rope 6; the other end of the pull rope 6 penetrates through the cleaning roller 16 and is connected with the middle part of the connecting rope 3; the pull rope 6 is in sliding fit with the cleaning roller 16; through 4 tip at the ejector pin and be connected 3 middle parts between be connected with stay cord 6, can further promote ejector pin 4 when retracting, to the effect of dragging of connecting rope 3 and brush 2, promote the effect of cleaning of brush 2 to the steel band, further reduce the remaining of impurity on the steel band.
A flow distribution block 7 is fixedly connected to the middle part of the cleaning roller 16; by providing the flow dividing block 7 inside the cleaning roller 16, the airflow introduced by the fan blades 5 can be guided, and the flow stability of the airflow can be improved.
Example two
As shown in fig. 7, a first comparative example, in which another embodiment of the present invention is: the end part of the ejector rod 4 is rotatably connected with a roller 8; through being equipped with gyro wheel 8 at ejector pin 4 tip, can replace the sliding friction of ejector pin 4 and steel band for rolling friction, reduce the damage problem that ejector pin 4 and steel band surface contact caused.
A low-carbon molybdenum-containing high-corrosion-resistance austenitic stainless steel strip processing technology is suitable for the low-carbon molybdenum-containing high-corrosion-resistance austenitic stainless steel strip processing device; the method comprises the following steps:
s1: 0.02-0.08% of C, 0.4-1% of Si, 0.8-2% of Mn, less than or equal to 0.04% of P, less than or equal to 0.03% of S, and Cr: 17-19%, Ni: 7-10%, Cu: 0.25-0.5 percent of Fe and the balance of Fe, continuously casting the smelted molten steel into a cast strip through a double-roller thin strip, and simultaneously controlling the cooling speed to be 19-38 ℃/s and the coiling temperature to be less than or equal to 610 ℃;
s2: pickling, then sending the mixture into a cold rolling mechanism 14 of cold rolling equipment for cold rolling, wherein the cold rolling reduction rate is controlled to be less than or equal to 16 percent;
s3: and annealing for multiple times again, controlling the temperature between 1000-1100 ℃, controlling the time for each time to be 3-8min, controlling the initial cold rolling reduction rate to be not less than 40%, and after the final cold rolling, carrying out acid pickling, flattening and longitudinal cutting to obtain a low-carbon molybdenum-containing high-corrosion-resistance austenitic stainless steel strip finished product.
During operation, in the process of cold rolling of a steel strip, the steel strip coil to be cold rolled is placed on the feeding seat 11, then the steel strip is guided to the collecting roller at the top of the receiving seat 12 through the plurality of cold rolling mechanisms 14, in the process of passing the steel strip through the cold rolling mechanisms 14, the cold rolling mechanisms 14 can drive through the belt and the gears, so that the cleaning roller 16 rotates simultaneously, at the moment, because the rotating direction of the cleaning roller 16 and the cold rolling mechanisms 14 rotate in the opposite direction, the cleaning roller 16 can continuously rub the steel strip, impurities or metal scraps on the steel strip are scraped, the problem that more scratches are remained on the surface of the steel strip when the steel strip is cold rolled is solved, the stability of the steel strip during cold rolling is improved, and the yield is improved; the plurality of brushes 2 are arranged in the middle of the cleaning roller 16, so that when the cleaning roller 16 is in contact with a cold-rolled steel strip for cleaning, more impurities on the steel strip can be cleaned by the brushes 2, and the cleanness degree of the surface of the steel strip during cold rolling is further improved; by connecting the connecting ropes 3 among the plurality of brushes 2, the dispersion degree of the brushes 2 can be reduced when the brushes 2 are in contact with the steel strip, the cleaning force of the brushes 2 is improved, the impurity residue on the surfaces of the brushes 2 is further reduced, the stability of the steel strip during cold rolling is improved, and the yield is further improved; the push rod 4 is arranged in the middle of the cleaning roller 16, so that when the cleaning roller 16 rotates, the end part of the push rod 4 can be in contact with a steel belt, at the moment, the push rod 4 can retract towards the inside of the cleaning roller 16, at the moment, the push rod 4 can pull the connecting rope 3 to pull the brush 2, at the moment, the middle part and the end part of the brush 2 can rub against the steel belt for multiple times, and impurities on the steel belt are further reduced; during cold rolling, a cooling liquid atomizing spray head is arranged near the end part of the cleaning roller 16 to spray cooling liquid to the cleaning roller 16, and meanwhile, the fan blades 5 are arranged in the cleaning roller 16, so that when the cleaning roller 16 rotates, the fan blades 5 drive air near the cleaning roller 16 to flow, the temperature in the cleaning roller 16 is reduced, the resilience of the elastic belt 41 and the high-temperature resistant spring 42 is more stable, and the influence of high temperature on the elastic belt 41 and the high-temperature resistant spring 42 is reduced; meanwhile, the cooling effect of the airflow driven by the fan blades 5 can be further improved by spraying the cooling liquid, the airflow driven by the fan blades 5 can flow out from the air vent 51, the flowing gas can blow and wash the brush 2, the impurity residue in the middle of the brush 2 is reduced, and the cleaning effect of the brush 2 is kept; the stay cord 6 is connected between the end part of the ejector rod 4 and the middle part of the connecting rope 3, so that the pulling effect of the ejector rod 4 on the connecting rope 3 and the hairbrush 2 when retracting can be further improved, the cleaning effect of the hairbrush 2 on the steel belt is improved, and the residue of impurities on the steel belt is further reduced; the flow dividing block 7 is arranged in the cleaning roller 16, so that the air flow guided by the fan blades 5 can be guided, and the flow stability of the air flow is improved; through being equipped with gyro wheel 8 at ejector pin 4 tip, can replace the sliding friction of ejector pin 4 and steel band for rolling friction, reduce the damage problem that ejector pin 4 and steel band surface contact caused.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A low-carbon molybdenum-containing high-corrosion-resistance austenitic stainless steel strip processing device is characterized in that: comprises a fixed seat (1); the top of the fixed seat (1) is fixedly connected with a feeding seat (11); the top of the fixed seat (1) is fixedly connected with a material receiving seat (12); a plurality of first brackets (13) are fixedly connected between the feeding seat (11) and the receiving seat (12) at the top of the fixed seat (1); the middle part of the first bracket (13) is rotationally connected with a pair of cold rolling mechanisms (14); a plurality of second brackets (15) are fixedly connected to one side of the middle part of the first bracket (13) close to the feeding seat (11); one sides of the second brackets (15) close to each other are rotatably connected with cleaning rollers (16); the cold rolling mechanism (14) and the cleaning roller (16) are in transmission through a belt and a gear; the rotation direction of the cleaning roller (16) is opposite to that of the cold rolling mechanism (14).
2. The processing device of the austenitic stainless steel band containing low carbon and molybdenum with high corrosion resistance as claimed in claim 1, wherein: the middle part of the cleaning roller (16) is fixedly connected with a plurality of hairbrushes (2).
3. The processing device of the austenitic stainless steel band containing low carbon and molybdenum with high corrosion resistance as claimed in claim 2, wherein: a connecting rope (3) is arranged among the plurality of hairbrushes (2); the connecting rope (3) is connected to the middle part of the hairbrush (2).
4. The processing device of the austenitic stainless steel strip with low carbon, molybdenum and high corrosion resistance as claimed in claim 3, wherein: the middle part of the cleaning roller (16) is connected with a plurality of push rods (4) in a sliding way; an elastic belt (41) is connected between the end part of the ejector rod (4) and the inner side wall of the cleaning roller (16); the end part of the ejector rod (4) and the middle part of the cleaning roller (16) are connected with a high-temperature resistant spring (42); the middle part of the ejector rod (4) is connected with the middle part of the connecting rope (3).
5. The processing device of the austenitic stainless steel strip with low carbon, molybdenum and high corrosion resistance as claimed in claim 4, wherein: a plurality of fan blades (5) are fixedly connected to the inner side wall of the cleaning roller (16); the middle part of the cleaning roller (16) is provided with a plurality of vent holes (51).
6. The processing device of the austenitic stainless steel strip with low carbon, molybdenum and high corrosion resistance as claimed in claim 5, wherein: the end part of the ejector rod (4) positioned in the cleaning roller (16) is connected with a pull rope (6); the other end of the pull rope (6) penetrates through the cleaning roller (16) to be connected with the middle part of the connecting rope (3); the pull rope (6) is in sliding fit with the cleaning roller (16).
7. The processing device of the austenitic stainless steel strip with low carbon, molybdenum and high corrosion resistance as claimed in claim 6, wherein: and a flow distribution block (7) is fixedly connected to the middle part of the cleaning roller (16).
8. The processing device of the austenitic stainless steel strip with low carbon, molybdenum and high corrosion resistance as claimed in claim 7, wherein: the end part of the ejector rod (4) is rotatably connected with a roller (8).
9. A processing technology of a low-carbon molybdenum-containing high-corrosion-resistance austenitic stainless steel strip is characterized by comprising the following steps: the processing technology is suitable for the processing device of the low-carbon molybdenum-containing high-corrosion-resistance austenitic stainless steel strip as claimed in any one of claims 1-8; the method comprises the following steps:
s1: 0.02-0.08% of C, 0.4-1% of Si, 0.8-2% of Mn, less than or equal to 0.04% of P, less than or equal to 0.03% of S, and Cr: 17-19%, Ni: 7-10%, Cu: 0.25-0.5 percent of Fe and the balance of Fe, continuously casting the smelted molten steel into a cast strip through a double-roller thin strip, and simultaneously controlling the cooling speed to be 19-38 ℃/s and the coiling temperature to be less than or equal to 610 ℃;
s2: pickling, then sending the mixture into a cold rolling mechanism (14) of cold rolling equipment for cold rolling, and controlling the cold rolling reduction rate to be less than or equal to 16 percent;
s3: and annealing for multiple times again, controlling the temperature between 1000-1100 ℃, controlling the time for each time to be 3-8min, controlling the initial cold rolling reduction rate to be not less than 40%, and after the final cold rolling, carrying out acid pickling, flattening and longitudinal cutting to obtain a low-carbon molybdenum-containing high-corrosion-resistance austenitic stainless steel strip finished product.
10. The process for manufacturing the austenitic stainless steel strip with low carbon, molybdenum and high corrosion resistance according to claim 9, wherein the process comprises the following steps: in the cold rolling of S3, the number of times of annealing and cold rolling can be adjusted according to the thickness requirement of the finished product.
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