CN106269861B - Utilize the process of planisher skin-pass rolling galvanized steel - Google Patents
Utilize the process of planisher skin-pass rolling galvanized steel Download PDFInfo
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- CN106269861B CN106269861B CN201610729134.6A CN201610729134A CN106269861B CN 106269861 B CN106269861 B CN 106269861B CN 201610729134 A CN201610729134 A CN 201610729134A CN 106269861 B CN106269861 B CN 106269861B
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- strip
- planisher
- leveling precision
- force
- galvanized steel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
-
- 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
- B21B45/0239—Lubricating
- B21B45/0242—Lubricants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/228—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length skin pass rolling or temper rolling
Abstract
The present invention is related to a kind of flattening process method suitable for cold-rolling galvanization strip using the process of planisher skin-pass rolling galvanized steel.Its purpose is to provide a kind of process using planisher skin-pass rolling galvanized steel, this method can the smooth strip waste product generated by polishing machine roll change, be allowed to obtain good performance and shape.The present invention is the following steps are included: reducing leveling precision alkalinity, preventing the leveling precision and reaction strip from generating corrosion and improving lubrication；Formulate the concentration and flow of the leveling precision；It is Constant dvaught pressure control mode by the permanent elongation control mode adjustment of the planisher；Set the strip first unit roll-force and initial bending roller force；Adjust mill speed；Put into entrance jockey pulley；Strip is put into the planisher carry out it is smooth；The strip after will be smooth carries out rewinding oiling.
Description
Technical field
The present invention relates to cold-rolling galvanization fields, more particularly to a kind of flattening process side suitable for cold-rolling galvanization strip
Method.
Background technique
As industry and the fast development of science and technology, cold-rolling galvanization strip are widely used in high-end automobile board industry, family
Battery plate industry.1700 galvanizing unit of Shoudu Iron and Steel Co capital Tang one cold rolling mill of cold rolling is that the typical high-tech modernization of current steel industry is zinc-plated
Tinuous production, mainly based on high-end household electrical appliances plate.In zinc-plated producing line continuous production process, strip is after zinc pot coating
Online polishing machine processing is had to pass through, the strip of superperformance and shape can be just obtained.Exist since 1700 galvanizing units design
Certain defect lacks loop before zinc-plated polishing machine, thus when polishing machine will be generated when roll change 7 tons or so without light
The strip of complete machine processing.In order to meet the requirement such as strip property, surface roughness, plate shape, polishing machine working roll must used
It is replaced after some cycles, then monthly non-finishing volume will generate 100 tons or so waste products, will definitely increase cost.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of process using planisher skin-pass rolling galvanized steel,
This method can the smooth strip waste product generated by polishing machine roll change, be allowed to obtain good performance and shape, meet and use
It is required that turning waste into wealth.
The present invention utilizes the process of planisher skin-pass rolling galvanized steel, comprising the following steps:
Leveling precision alkalinity is reduced, prevents the leveling precision and reaction strip from generating and corrodes and improve lubrication；
Formulate the concentration and flow of the leveling precision；
It is Constant dvaught pressure control mode by the permanent elongation control mode adjustment of the planisher；
Set the strip first unit roll-force and initial bending roller force；
Adjust mill speed；
Put into entrance jockey pulley；
Strip is put into the planisher carry out it is smooth；
The strip after will be smooth carries out rewinding oiling.
The present invention utilizes the process of planisher skin-pass rolling galvanized steel, wherein the concentration of the leveling precision is established as
2.7~3.3%, the flow of the leveling precision is established as 13~15L/min.
The present invention utilizes the process of planisher skin-pass rolling galvanized steel, wherein the first unit of the strip rolls
Power is set as 1.0~1.8KN/ ㎜, and initial bending roller force is the 2~16% of rolling force setup value.
The present invention utilizes the process of planisher skin-pass rolling galvanized steel, wherein will roll when adjustment mill speed
Speed is increased to 400mpm or more.
The present invention utilizes the process of planisher skin-pass rolling galvanized steel, wherein the entrance of the entrance jockey pulley
Power is set as 9~32KN.
The present invention utilizes the process of planisher skin-pass rolling galvanized steel, wherein the concentration of the leveling precision is established as
2.8%, the flow of leveling precision is established as 13.2L/min.
The present invention utilizes the process of planisher skin-pass rolling galvanized steel, wherein the initial bending roller force is roll-force
The 8.3% of setting value.
The present invention utilizes the process of planisher skin-pass rolling galvanized steel, wherein the concentration of the leveling precision is established as
2.8%, the flow of leveling precision is established as 13.5L/min.
The present invention utilizes the process of planisher skin-pass rolling galvanized steel, wherein the initial bending roller force is roll-force
The 9.9% of setting value or 15.1%.
The present invention utilizes the process of planisher skin-pass rolling galvanized steel, wherein the concentration of the leveling precision is established as
2.8%, the flow of leveling precision is established as 13.65L/min, and the initial bending roller force is the 10% of rolling force setup value.
The present invention is using the process of planisher skin-pass rolling galvanized steel mainly by polishing machine in zinc-plated roll change
The non-finishing waste product strip generated, to meet customer need, becomes waste product by offline smooth acquisition superperformance and shape to close
Lattice product break original old technology route.The present invention is mainly used from the pH value of leveling precision, smooth flow quantity and concentration, is rolled
The factors such as mode is chosen, rolling parameter is set, mill speed setting, entrance jockey pulley investment optimize, and can obtain
The strip of superperformance and shape, to become closing after the non-flattened machine of finishing galvanized steel for generating polishing machine roll change is smooth
Lattice product.
The present invention will be further explained below with reference to the attached drawings.
Detailed description of the invention
Fig. 1 is flow chart of the present invention using the process of planisher skin-pass rolling galvanized steel.
Specific embodiment
As shown in Figure 1, the present invention utilizes the process of planisher skin-pass rolling galvanized steel, comprising the following steps:
Leveling precision alkalinity is reduced, i.e., leveling precision is substituted for the dual-purpose liquid of smooth finishing, prevents leveling precision and reaction strip
It generates and corrodes and improve lubrication；
The concentration and flow of leveling precision are formulated, the concentration of leveling precision is established as 2.7~3.3%, and the flow of leveling precision is formulated
For 13~15L/min；
It is Constant dvaught pressure control mode by the permanent elongation control mode adjustment of planisher, it is therefore an objective to increase roll-force, change
Owe finishing phenomenon in kind surface；
The first unit roll-force and initial bending roller force, the first unit rolling force setup of strip for setting strip are 1.0
~1.8KN/ ㎜, initial bending roller force are the 2~16% of rolling force setup value, and the above parameter is according to strip actual surface state and plate
Type situation is adjusted；
Mill speed is adjusted, mill speed is increased to 400mpm or more, it is white to steel edge portion by research mill speed
The influence of spot, discovery mill speed is higher, and leveling precision residual is fewer, and belt steel surface situation is better；
Entrance jockey pulley is put into, strip tension can be stablized, improve the stability of belt steel rolling, prevents plumage trace from generating；
Strip is put into planisher carry out it is smooth；
Strip after will be smooth carries out rewinding oiling.
The present invention utilizes the process of planisher skin-pass rolling galvanized steel, wherein the entrance of the entrance jockey pulley
Power is set as 9~32KN.
When zinc-plated producing line roll change, the speed of service of strip when improving polishing machine work roll changing, by roll change speed by original
60mpm be increased to 100mpm, in this way, on the one hand can be improved production capacity, on the other hand can be improved the stability of strip coating.
Advantages of the present invention is as follows:
1, economic and practical.The smooth zinc-plated non-finishing strip waste product of offline planisher is made full use of, zinc-plated rejection number is reduced.
2, zinc-plated rejection number is reduced.In previous processing route, the non-finishing galvanized steel that polishing machine roll change generates, directly
Determine waste product, and waste product is passed through offline smooth acquisition excellent surface, performance, plate shape by new process path.
The present invention is using the process of planisher skin-pass rolling galvanized steel mainly by polishing machine in zinc-plated roll change
The non-finishing waste product strip generated, to meet customer need, becomes waste product by offline smooth acquisition superperformance and shape to close
Lattice product break original old technology route.The present invention is mainly used from the pH value of leveling precision, smooth flow quantity and concentration, is rolled
The factors such as mode is chosen, rolling parameter is set, mill speed setting, entrance jockey pulley investment optimize, and can obtain
The strip of superperformance and shape, to become closing after the non-flattened machine of finishing galvanized steel for generating polishing machine roll change is smooth
Lattice product.
In the actual production process, it is carried out according to 1 organization of production process of table:
Table 1
| Production procedure | Specific steps |
| 1 | Material prepares |
| 2 | Working roll is taken out, rack is rinsed |
| 3 | Offline smooth production process control |
| 4 | Rolling parameter adjusting and optimizing |
| 5 | Off-line procedure inspection |
Embodiment one
With the smooth finished product grade of steel of planisher be AH10401R, the strip that finished product thickness is 1 ㎜, finished width is 1250 ㎜ is
Example is illustrated:
Leveling precision alkalinity is reduced, prevents leveling precision and reaction strip from generating and corrodes and improve lubrication；
The concentration of leveling precision is established as 2.8%, and the flow of leveling precision is established as 13.2L/min；
It is Constant dvaught pressure control mode by the permanent elongation control mode adjustment of planisher, it is therefore an objective to increase roll-force, change
Owe finishing phenomenon in kind surface；
Strip initially sets unit roll-force as 1.44KN/ ㎜, and initial bending roller force is the 8.3% of rolling force setup value, rolls
Power processed=unit roll-force × strip finished width=1.44KN/ ㎜ × 1250 ㎜=1800KN, initial bending roller force=
1800KN × 8.3%=150KN；
Mill speed is increased to 400mpm or more, and the influence by research mill speed to steel edge portion hickie, discovery is rolled
Speed processed is higher, and leveling precision residual is fewer, and belt steel surface situation is better；
Entrance jockey pulley is put into, the entrance tension of entrance jockey pulley is set as 30KN, can stablize strip tension, improves strip
The stability of rolling prevents plumage trace from generating；
The outlet tension of planisher is set as 45KN；
Strip is put into planisher carry out it is smooth；
Strip after will be smooth carries out rewinding oiling.
The present invention is using the process of planisher skin-pass rolling galvanized steel mainly by polishing machine in zinc-plated roll change
The non-finishing waste product strip generated, to meet customer need, becomes waste product by offline smooth acquisition superperformance and shape to close
Lattice product break original old technology route.The present invention is mainly used from the pH value of leveling precision, smooth flow quantity and concentration, is rolled
The factors such as mode is chosen, rolling parameter is set, mill speed setting, entrance jockey pulley investment optimize, and can obtain
The strip of superperformance and shape, to become closing after the non-flattened machine of finishing galvanized steel for generating polishing machine roll change is smooth
Lattice product.
Embodiment two
It is AH10401R with the smooth finished product grade of steel of planisher, the strip that finished product thickness is 0.8 ㎜, finished width is 1250 ㎜
For be illustrated:
Leveling precision alkalinity is reduced, prevents leveling precision and reaction strip from generating and corrodes and improve lubrication；
The concentration of leveling precision is established as 2.8%, and the flow of leveling precision is established as 14.35L/min；
It is Constant dvaught pressure control mode by the permanent elongation control mode adjustment of planisher, it is therefore an objective to increase roll-force, change
Owe finishing phenomenon in kind surface；
Strip initially sets unit roll-force as 1.36KN/ ㎜, and initial bending roller force is the 8.8% of rolling force setup value, rolls
Power processed=unit roll-force × strip finished width=1.36KN/ ㎜ × 1250 ㎜=1700KN, initial bending roller force=
1700KN × 8.8%=150KN；
Mill speed is increased to 400mpm or more, and the influence by research mill speed to steel edge portion hickie, discovery is rolled
Speed processed is higher, and leveling precision residual is fewer, and belt steel surface situation is better；
Entrance jockey pulley is put into, the entrance tension of entrance jockey pulley is set as 28KN, can stablize strip tension, improves strip
The stability of rolling prevents plumage trace from generating；
The outlet tension of planisher is set as 45KN；
Strip is put into planisher carry out it is smooth；
Strip after will be smooth carries out rewinding oiling.
The present invention is using the process of planisher skin-pass rolling galvanized steel mainly by polishing machine in zinc-plated roll change
The non-finishing waste product strip generated, to meet customer need, becomes waste product by offline smooth acquisition superperformance and shape to close
Lattice product break original old technology route.The present invention is mainly used from the pH value of leveling precision, smooth flow quantity and concentration, is rolled
The factors such as mode is chosen, rolling parameter is set, mill speed setting, entrance jockey pulley investment optimize, and can obtain
The strip of superperformance and shape, to become closing after the non-flattened machine of finishing galvanized steel for generating polishing machine roll change is smooth
Lattice product.
Embodiment three
With the smooth finished product grade of steel of planisher be AH10401R, the strip that finished product thickness is 1 ㎜, finished width is 1250 ㎜ is
Example is illustrated:
Leveling precision alkalinity is reduced, prevents leveling precision and reaction strip from generating and corrodes and improve lubrication；
The concentration of leveling precision is established as 2.8%, and the flow of leveling precision is established as 13.65L/min；
It is Constant dvaught pressure control mode by the permanent elongation control mode adjustment of planisher, it is therefore an objective to increase roll-force, change
Owe finishing phenomenon in kind surface；
Strip initially sets unit roll-force as 1.44KN/ ㎜, and initial bending roller force is the 10% of rolling force setup value, rolling
Power=unit roll-force × strip finished width=1.44KN/ ㎜ × 1250 ㎜=1800KN, initial bending roller force=1800KN
× 10%=180KN；
Mill speed is increased to 400mpm or more, and the influence by research mill speed to steel edge portion hickie, discovery is rolled
Speed processed is higher, and leveling precision residual is fewer, and belt steel surface situation is better；
Entrance jockey pulley is put into, the entrance tension of entrance jockey pulley is set as 32KN, can stablize strip tension, improves strip
The stability of rolling prevents plumage trace from generating；
The outlet tension of planisher is set as 55KN；
Strip is put into planisher carry out it is smooth；
Strip after will be smooth carries out rewinding oiling.
The present invention is using the process of planisher skin-pass rolling galvanized steel mainly by polishing machine in zinc-plated roll change
The non-finishing waste product strip generated, to meet customer need, becomes waste product by offline smooth acquisition superperformance and shape to close
Lattice product break original old technology route.The present invention is mainly used from the pH value of leveling precision, smooth flow quantity and concentration, is rolled
The factors such as mode is chosen, rolling parameter is set, mill speed setting, entrance jockey pulley investment optimize, and can obtain
The strip of superperformance and shape, to become closing after the non-flattened machine of finishing galvanized steel for generating polishing machine roll change is smooth
Lattice product.
Example IV
It is AH10401R with the smooth finished product grade of steel of planisher, the band that finished product thickness is 0.35 ㎜, finished width is 1120 ㎜
It is illustrated for steel:
Leveling precision alkalinity is reduced, prevents leveling precision and reaction strip from generating and corrodes and improve lubrication；
The concentration of leveling precision is established as 2.8%, and the flow of leveling precision is established as 13.7L/min；
It is Constant dvaught pressure control mode by the permanent elongation control mode adjustment of planisher, it is therefore an objective to increase roll-force, change
Owe finishing phenomenon in kind surface；
Strip initially sets unit roll-force as 1.05KN/ ㎜, and initial bending roller force is the 2.55% of rolling force setup value, rolls
Power processed=unit roll-force × strip finished width=1.05KN/ ㎜ × 1120 ㎜=1175KN, initial bending roller force=
1175KN × 2.55%=30KN；
Mill speed is increased to 400mpm or more, and the influence by research mill speed to steel edge portion hickie, discovery is rolled
Speed processed is higher, and leveling precision residual is fewer, and belt steel surface situation is better；
Entrance jockey pulley is put into, the entrance tension of entrance jockey pulley is set as 9KN, can stablize strip tension, improves strip
The stability of rolling prevents plumage trace from generating；
The outlet tension of planisher is set as 19.7KN；
Strip is put into planisher carry out it is smooth；
Strip after will be smooth carries out rewinding oiling.
The present invention is using the process of planisher skin-pass rolling galvanized steel mainly by polishing machine in zinc-plated roll change
The non-finishing waste product strip generated, to meet customer need, becomes waste product by offline smooth acquisition superperformance and shape to close
Lattice product break original old technology route.The present invention is mainly used from the pH value of leveling precision, smooth flow quantity and concentration, is rolled
The factors such as mode is chosen, rolling parameter is set, mill speed setting, entrance jockey pulley investment optimize, and can obtain
The strip of superperformance and shape, to become closing after the non-flattened machine of finishing galvanized steel for generating polishing machine roll change is smooth
Lattice product.
Embodiment five
It is AH10401R with the smooth finished product grade of steel of planisher, the strip that finished product thickness is 0.8 ㎜, finished width is 1100 ㎜
For be illustrated:
Leveling precision alkalinity is reduced, prevents leveling precision and reaction strip from generating and corrodes and improve lubrication；
The concentration of leveling precision is established as 2.8%, and the flow of leveling precision is established as 13.6L/min；
It is Constant dvaught pressure control mode by the permanent elongation control mode adjustment of planisher, it is therefore an objective to increase roll-force, change
Owe finishing phenomenon in kind surface；
Strip initially sets unit roll-force as 1.45KN/ ㎜, and initial bending roller force is the 9.4% of rolling force setup value, rolls
Power processed=unit roll-force × strip finished width=1.45KN/ ㎜ × 1100 ㎜=1600KN, initial bending roller force=
1600KN × 9.4%=150KN；
Mill speed is increased to 400mpm or more, and the influence by research mill speed to steel edge portion hickie, discovery is rolled
Speed processed is higher, and leveling precision residual is fewer, and belt steel surface situation is better；
Entrance jockey pulley is put into, the entrance tension of entrance jockey pulley is set as 21KN, can stablize strip tension, improves strip
The stability of rolling prevents plumage trace from generating；
The outlet tension of planisher is set as 30KN；
Strip is put into planisher carry out it is smooth；
Strip after will be smooth carries out rewinding oiling.
The present invention is using the process of planisher skin-pass rolling galvanized steel mainly by polishing machine in zinc-plated roll change
The non-finishing waste product strip generated, to meet customer need, becomes waste product by offline smooth acquisition superperformance and shape to close
Lattice product break original old technology route.The present invention is mainly used from the pH value of leveling precision, smooth flow quantity and concentration, is rolled
The factors such as mode is chosen, rolling parameter is set, mill speed setting, entrance jockey pulley investment optimize, and can obtain
The strip of superperformance and shape, to become closing after the non-flattened machine of finishing galvanized steel for generating polishing machine roll change is smooth
Lattice product.
Embodiment six
It is AH10401R with the smooth finished product grade of steel of planisher, the strip that finished product thickness is 0.6 ㎜, finished width is 950 ㎜
For be illustrated:
Leveling precision alkalinity is reduced, prevents leveling precision and reaction strip from generating and corrodes and improve lubrication；
The concentration of leveling precision is established as 2.8%, and the flow of leveling precision is established as 13.5L/min；
It is Constant dvaught pressure control mode by the permanent elongation control mode adjustment of planisher, it is therefore an objective to increase roll-force, change
Owe finishing phenomenon in kind surface；
Strip initially sets unit roll-force as 1.58KN/ ㎜, and initial bending roller force is the 9.9% of rolling force setup value, rolls
Power processed=unit roll-force × strip finished width=1.58KN/ ㎜ × 950 ㎜=1500KN, initial bending roller force=1500KN
× 9.9%=149KN；
Mill speed is increased to 400mpm or more, and the influence by research mill speed to steel edge portion hickie, discovery is rolled
Speed processed is higher, and leveling precision residual is fewer, and belt steel surface situation is better；
Entrance jockey pulley is put into, the entrance tension of entrance jockey pulley is set as 14KN, can stablize strip tension, improves strip
The stability of rolling prevents plumage trace from generating；
The outlet tension of planisher is set as 27.8KN；
Strip is put into planisher carry out it is smooth；
Strip after will be smooth carries out rewinding oiling.
The present invention is using the process of planisher skin-pass rolling galvanized steel mainly by polishing machine in zinc-plated roll change
The non-finishing waste product strip generated, to meet customer need, becomes waste product by offline smooth acquisition superperformance and shape to close
Lattice product break original old technology route.The present invention is mainly used from the pH value of leveling precision, smooth flow quantity and concentration, is rolled
The factors such as mode is chosen, rolling parameter is set, mill speed setting, entrance jockey pulley investment optimize, and can obtain
The strip of superperformance and shape, to become closing after the non-flattened machine of finishing galvanized steel for generating polishing machine roll change is smooth
Lattice product.
Embodiment seven
It is AH10401R with the smooth finished product grade of steel of planisher, the strip that finished product thickness is 0.6 ㎜, finished width is 950 ㎜
For be illustrated:
Leveling precision alkalinity is reduced, prevents leveling precision and reaction strip from generating and corrodes and improve lubrication；
The concentration of leveling precision is established as 2.8%, and the flow of leveling precision is established as 13.6L/min；
It is Constant dvaught pressure control mode by the permanent elongation control mode adjustment of planisher, it is therefore an objective to increase roll-force, change
Owe finishing phenomenon in kind surface；
Strip initially sets unit roll-force as 1.58KN/ ㎜, and initial bending roller force is the 10.1% of rolling force setup value, rolls
Power processed=unit roll-force × strip finished width=1.58KN/ ㎜ × 950 ㎜=1500KN, initial bending roller force=1500KN
× 10.1%=152KN；
Mill speed is increased to 400mpm or more, and the influence by research mill speed to steel edge portion hickie, discovery is rolled
Speed processed is higher, and leveling precision residual is fewer, and belt steel surface situation is better；
Entrance jockey pulley is put into, the entrance tension of entrance jockey pulley is set as 14KN, can stablize strip tension, improves strip
The stability of rolling prevents plumage trace from generating；
The outlet tension of planisher is set as 27.5KN；
Strip is put into planisher carry out it is smooth；
Strip after will be smooth carries out rewinding oiling.
The present invention is using the process of planisher skin-pass rolling galvanized steel mainly by polishing machine in zinc-plated roll change
The non-finishing waste product strip generated, to meet customer need, becomes waste product by offline smooth acquisition superperformance and shape to close
Lattice product break original old technology route.The present invention is mainly used from the pH value of leveling precision, smooth flow quantity and concentration, is rolled
The factors such as mode is chosen, rolling parameter is set, mill speed setting, entrance jockey pulley investment optimize, and can obtain
The strip of superperformance and shape, to become closing after the non-flattened machine of finishing galvanized steel for generating polishing machine roll change is smooth
Lattice product.
Embodiment eight
It is AH10401R with the smooth finished product grade of steel of planisher, the strip that finished product thickness is 0.8 ㎜, finished width is 900 ㎜
For be illustrated:
Leveling precision alkalinity is reduced, prevents leveling precision and reaction strip from generating and corrodes and improve lubrication；
The concentration of leveling precision is established as 2.8%, and the flow of leveling precision is established as 13.5L/min；
It is Constant dvaught pressure control mode by the permanent elongation control mode adjustment of planisher, it is therefore an objective to increase roll-force, change
Owe finishing phenomenon in kind surface；
Strip initially sets unit roll-force as 1.33KN/ ㎜, and initial bending roller force is the 15.1% of rolling force setup value, rolls
Power processed=unit roll-force × strip finished width=1.33KN/ ㎜ × 900 ㎜=1193KN, initial bending roller force=1193KN
× 15.1%=180KN；
Mill speed is increased to 400mpm or more, and the influence by research mill speed to steel edge portion hickie, discovery is rolled
Speed processed is higher, and leveling precision residual is fewer, and belt steel surface situation is better；
Entrance jockey pulley is put into, the entrance tension of entrance jockey pulley is set as 18KN, can stablize strip tension, improves strip
The stability of rolling prevents plumage trace from generating；
The outlet tension of planisher is set as 31.7KN；
Strip is put into planisher carry out it is smooth；
Strip after will be smooth carries out rewinding oiling.
The present invention is using the process of planisher skin-pass rolling galvanized steel mainly by polishing machine in zinc-plated roll change
The non-finishing waste product strip generated, to meet customer need, becomes waste product by offline smooth acquisition superperformance and shape to close
Lattice product break original old technology route.The present invention is mainly used from the pH value of leveling precision, smooth flow quantity and concentration, is rolled
The factors such as mode is chosen, rolling parameter is set, mill speed setting, entrance jockey pulley investment optimize, and can obtain
The strip of superperformance and shape, to become closing after the non-flattened machine of finishing galvanized steel for generating polishing machine roll change is smooth
Lattice product.
The parameters of above-described embodiment one to eight are listed as follows:
Table 2
Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.
Claims (6)
1. a kind of process using planisher skin-pass rolling galvanized steel, which comprises the following steps:
Leveling precision alkalinity is reduced, prevents the leveling precision and reaction strip from generating and corrodes and improve lubrication；
Formulate the concentration and flow of the leveling precision；The concentration of the leveling precision is established as 2.7~3.3%, the leveling precision
Flow is established as 13~15L/min；
It is Constant dvaught pressure control mode by the permanent elongation control mode adjustment of the planisher；
Set the strip first unit roll-force and initial bending roller force；The first unit rolling force setup of the strip is
1.0~1.8KN/ ㎜, initial bending roller force are the 2~16% of rolling force setup value；
Mill speed is adjusted, mill speed is increased to 400mpm or more；
Entrance jockey pulley is put into, the entrance tension of the entrance jockey pulley is set as 9~32KN；
Strip is put into the planisher carry out it is smooth；The strip is the non-finishing that polishing machine is generated in zinc-plated roll change
Waste product strip；
The strip after will be smooth carries out rewinding oiling.
2. the process according to claim 1 using planisher skin-pass rolling galvanized steel, it is characterised in that: described
The concentration of leveling precision is established as 2.8%, and the flow of leveling precision is established as 13.2L/min.
3. the process according to claim 2 using planisher skin-pass rolling galvanized steel, it is characterised in that: described
Initial bending roller force is the 8.3% of rolling force setup value.
4. the process according to claim 1 using planisher skin-pass rolling galvanized steel, it is characterised in that: described
The concentration of leveling precision is established as 2.8%, and the flow of leveling precision is established as 13.5L/min.
5. the process according to claim 4 using planisher skin-pass rolling galvanized steel, it is characterised in that: described
Initial bending roller force is the 9.9% or 15.1% of rolling force setup value.
6. the process according to claim 1 using planisher skin-pass rolling galvanized steel, it is characterised in that: described
The concentration of leveling precision is established as 2.8%, and the flow of leveling precision is established as 13.65L/min, and the initial bending roller force sets for roll-force
The 10% of definite value.
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| CN107695109B (en) * | 2017-09-15 | 2019-10-11 | 攀钢集团攀枝花钢钒有限公司 | Skin pass mill group milling method |
| CN107904603B (en) * | 2017-10-31 | 2019-09-17 | 日照宝华新材料有限公司 | The method for controlling sour horizontal line belt steel surface foreign matter indentation defect |
| CN109719135B (en) * | 2019-01-04 | 2020-06-19 | 北京首钢自动化信息技术有限公司 | Online calibration method for four-roller finishing machine for aluminum-plated zinc wire |
| CN113820446B (en) * | 2020-06-18 | 2023-11-14 | 宝山钢铁股份有限公司 | Method for detecting concentration of leveling liquid |
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