JPH11293483A - Wringer roll and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a roll without degrading liquid draining property even when being used for a long time by laminating the inner layer of a flexible material on the surface of a metallic core material and laminating the outer layer of a film like coated material harder than the flexible material on the inner layer. SOLUTION: The inner layer uses the flexible material such as rubber, sponge rubber, urethane or the like having 0.01 to <=5 kgf/mm<2> Young's modulus and is laminated into 5-50 mm thickness and the outer layer is formed by preferably laminating the film-like material such as nylon, polyester, polyimide, polyethylene having 10-10,000 kgf/mm<2> Young's modulus with 0.1-10 mm thickness. The soft layer of the flexible material is laminated on the surface of the cylindrical iron core and the hard layer of the hard film like coated material is laminated on the soft layer. The hard layer is formed by applying or laminating a hot-melt sticking resin or a hot melt adhesive on the back surface of the hard film like coated material and is heated by a heating means such as an iron from the surface while pressing. The liquid draining property is not deteriorated even in long use exceeding 200 day.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ringer roll for removing liquid adhering to both sides of a metal strip to be transported, and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, ringer rolls have been used to remove liquids adhering to both surfaces of a metal strip in an pickling line, an annealing line, a plating line, etc. of an iron making line.

As a technique relating to this ringer roll, an invention relating to a "ringer roll" is proposed in Japanese Patent Application Laid-Open No. 3-285100. The present invention relates to a ringer roll composed of a pair of rolls and draining these surfaces with a strip interposed therebetween, wherein at least the surface of one of the paired rolls is at least the surface of the other roll. It is harder, preferably, the pair of rolls, the surface of the core material is coated with a coating such as a resin, the coating of one roll is harder than the coating of the other roll, More preferably, the Young's modulus of the surface of the roll having a hard surface is 10 to 4
000 kgf / mm ² . The gist is that.

According to the present invention, it is possible to improve the liquid squeezability and the roll life, and to improve the basic unit of the chemical solution, reduce the energy and maintenance costs, and further improve the product yield. It is. In addition, if both rolls are configured by coating the surface of a core material with a resin or the like, and the coating of one roll is made harder than the coating of the other roll, it is easy to manufacture the roll, and It is also applicable to a roll having a diameter of. Further, the Young's modulus on the surface of the hard roll is set to 1
When it is 0 to 4000 kgf / mm ² , the improvement of the liquid drawability and the roll life becomes remarkable.

[0005]

By the way, in the conventional ringer roll, the Young's modulus is 10 to 10,000.
When a roll having a hard material of kgf / mm ² provided on the surface layer is used, the abrasion resistance is excellent, but a gap is formed between the metal strip and the metal strip because the metal strip has irregularities in the width direction and the longitudinal direction. However, there was a problem that the liquid did not run out partially.

In addition, when a roll having a soft material having a Young's modulus of 5 kgf / mm ² or less provided on the surface layer is used, even when the metal strip has irregularities in the width direction or the longitudinal direction,
It has excellent copyability with metal strips and has excellent liquid drainage properties because there is no gap.However, because it is soft, wear due to contact with the metal strips is small, and the roll profile deteriorates in a short time. And the roll life is short.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a long-life ringer roll which does not cause a decrease in liquid drainage performance even when used for a long time, and a method for producing the same. Aim.

[0008]

In order to achieve the above object,
The ringer roll of the present invention is a ringer roll that removes a liquid component attached to both surfaces of a metal strip to be transferred, in which an inner layer made of a flexible material is laminated on the surface of a metal core material, and on this inner layer An outer layer made of a film-like coating harder than a flexible material is laminated.

Preferably, the inner layer has a Young's modulus of 0.1.
5 to 5 kgf / mm ² or less
The outer layer is made of a film-like coating having a Young's modulus of 10 to 10,000 kgf / mm ² , and is laminated with a thickness of 0.1 to 10 mm.

Preferably, the flexible material forming the inner layer is rubber, sponge rubber or urethane, and the film-like coating forming the outer layer is nylon, polyester, polyimide or polyethylene.

On the other hand, in the method for manufacturing a ringer roll according to the present invention, after a flexible material is lined on the surface of a cylindrical metal core material, a harder film-like coating material is thermally coated on the flexible material. It is made to fuse.

Alternatively, after a flexible material is lined on the surface of a cylindrical metal core, a harder film-like coating is bonded onto the flexible material.

According to the present invention, an inner layer made of a flexible material is laminated on the surface of a metal core material, and an outer layer made of a hard film-like coating is laminated on this inner layer.
The outer layer will bend following the inner layer. In particular, since the hard coating is in the form of a film, the ability to follow the inner layer is extremely large. Therefore, even when the metal strip has irregularities in the width direction or the longitudinal direction, the roll is in close contact with the metal strip and no gap is generated, so that the liquid drainage property is excellent. In addition, since it has an outer layer made of a hard film-like coating, there is little wear due to contact with a metal strip, the roll profile does not change over a long period of time, the liquid drainage property is excellent, and the roll life is long.

[0014]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a schematic view showing a cross-sectional structure of a ringer roll according to the present invention.
As shown in the figure, a metal core 2 such as an iron core is provided at the center of the ringer roll 1 of the present embodiment. The iron core 2 has a columnar shape, has a width corresponding to the roll length, and has a roll shaft (not shown) formed at both ends.

On the surface of the iron core 2, an inner layer 3 made of a flexible material is laminated. Specifically, the inner layer 3 is formed of a flexible material having a Young's modulus of 0.01 to 5 kgf / mm ² or less, and is laminated with a thickness of 5 to 50 mm. Examples of such a flexible material include rubber such as styrene butadiene rubber, nitrile rubber, neoprene rubber, and chloropyrene rubber, porous sponge rubber, and urethane.

The Young's modulus of the inner layer 3, which is a flexible material, is set to 0.1.
Was set to 01~5kgf / mm ² or less, too soft and Young's modulus is less than 0.01 kgf / mm @ 2, 5
If it exceeds kgf / mm ² , the copying property of the metal strip is extremely deteriorated, and the liquid drainage performance is reduced. In addition, the reason why the inner layer 3 is laminated with a thickness of 5 to 50 mm is that if the thickness is less than 5 mm, the profiling property to the metal strip is deteriorated, and the liquid drainage performance is reduced.
This is because making the thickness more than 50 mm does not make sense industrially.

The inner layer 3 is provided on the surface of the cylindrical iron core 2,
For example, it is formed by lining a flexible material such as styrene butadiene rubber. Specifically, a cylindrical iron core 2 is arranged at the center in a cylindrical mold, and the mold and the iron core 2 are arranged.
The inner layer 3 made of a flexible material can be lined around the iron core 2 by pouring a flowable flexible material into the gap between the inner core 3 and the inner core 3.

On the inner layer 3, an outer layer 4 made of a film-like coating harder than the above flexible material is laminated. Specifically, the outer layer 4 has a Young's modulus of 10 to 10,0.
It is formed of a hard film-like coating of 00 kgf / mm ² and laminated with a thickness of 0.1 to 10 mm. Examples of such a film-like coating include polymer materials such as nylon, polyester (PET), polyimide, and polyethylene.

[0019] The film-like Young's modulus of the outer layer 4 is a coating was set to 10~10,000kgf / mm ^2, the film-like coating of the Young's modulus is less than 10 kgf / mm ² is abrasion resistance It is not suitable for use as a ringer roll because of its low modulus, and its Young's modulus is 10,000 kg.
If f / mm ² is exceeded, the conformability to the metal strip is extremely deteriorated even in the form of a film, and the liquid drainage performance is reduced. In addition, when the outer layer 4 is laminated with a thickness of 0.1 to 10 mm, if the thickness is less than 0.1 mm,
Because the strength of the film is insufficient and it is damaged,
This is because if the thickness exceeds 10 mm, the concept of the film-like coating material is moved away from the concept, the copying property of the metal strip is deteriorated, and the liquid drainage performance is reduced.

The outer layer 4 is formed by forming an inner layer 3 which is a flexible material on the surface of a cylindrical iron core 2 by lining.
On the inner layer 3, a film-like coating 4a harder than the flexible material constituting the inner layer 3 is formed by heat fusion. Specifically, as shown in FIG.
The outer layer 4 is laminated on the inner layer 3 by applying or laminating the heat sealing resin 5 on the back surface of the inner layer 3 and heating the resin from the front surface while applying pressure by a heating means 6 such as an iron. The film-like coating 4a has a desired lamination thickness of the outer layer 4 (0.
(1 to 10 mm). At this time, the film-shaped coating 4a may be applied while rotating the roll, or the film-shaped coating 4a may be wound and applied while the roll is fixed.

Alternatively, the outer layer 4 is formed by forming an inner layer 3 which is a flexible material on the surface of a cylindrical iron core 2 by lining, and then forming a film harder than the flexible material constituting the inner layer 3 on the inner layer 3. The adhesive coating 4a is laminated on the inner layer 3 by bonding with an adhesive. Again, in this case,
It is preferable to adhere while pressing from the surface of the film-shaped coating 4a. As the adhesive, a resin-based adhesive is preferable.

As described above, an inner layer 3 made of a flexible material and an outer layer 4 made of a film-like coating 4a harder than the flexible material are sequentially formed on the surface of the cylindrical iron core 2. be able to. The reason why the polymer material such as nylon, polyester (PET), polyimide, and polyethylene is used as the constituent material of the outer layer 4 is that the ringer roll 1 comes into contact with a pickling solution such as hydrochloric acid, so that the liquid component adheres. This is to avoid corrosion of the outer layer 4 that comes into direct contact with the metal strip.

[0023]

EXAMPLES In order to confirm the effects of the present invention, an iron core made of stainless steel (SUS) (φ300 × width 300 mm)
A sample roll 10 was prepared by sequentially laminating an inner layer and an outer layer shown in Table 1 below on the surface of the sample roll, and subjected to a liquid drawing test and an abrasion test.

[0024]

[Table 1]

In the liquid drawing test, the iron roll (φ350 × 300 mm width) 11 shown in FIGS. 2 to 4 was brought into contact with the sample roll 10 and rotated, and water was applied to the iron roll 11 to make contact with the sample roll 10. The abrasion test was performed by measuring the thickness of the water film. On the other hand, the abrasion test was performed using an iron roll having a convex portion (φ350 × 300 mm in width, and a hemispherical convex portion having a width of 100 mm × height of 3 mm at the center of the roll surface. )
12 was rotated while being in contact with the sample roll 10, and water was applied to the iron roll 12.

More specifically, the sample roll 10 and the flat iron roll 11 and the iron roll 1 having a convex portion
When the sample roll 10 is rotated in a state in which the sample roll 10 is brought into contact with the iron roll 11, the convexity of the iron roll 12 causes the sample roll 10 to wear over time, and the liquid drainage property after contact with the iron roll 11 is reduced. The water film thickness on the roll surface after contact with the iron roll 11 is measured, and the test is terminated when the water film thickness becomes 100 μm or more. At this time, the abrasion resistance and liquid squeezability of the roll were evaluated, and those having a roll life of 200 days or more were judged as good (（). The rolling force between the rolls is 3k.
g / mm, and the sample roll 10 and the iron roll 12 were rotated by rotating the iron roll 11 at 300 rpm.

In Table 1, Examples 1 to 5
A flexible material having a Young's modulus of 5 kgf / mm 2 or less (nitrile rubber, styrene butadiene rubber, sponge-like styrene butadiene rubber or neoprene rubber) is laminated on the iron core surface to a thickness of 5 to 50 mm to form an inner layer. On the inner layer, a hard film-like coating (Nylon, polyimide or polyester) having a Young's modulus of 10 to 10,000 kgf / mm ² is laminated with a thickness of 0.1 to 10 mm to form an outer layer. The roll life reached 200 to 240 days, and all the sample rolls 10 showed good results (（).

On the other hand, in Table 1, Comparative Example 1 is a sample roll 10 in which a single layer of nitrile rubber having a Young's modulus of 0.3 kgf / mm ² was laminated 20 mm on the surface of an iron core. The thickness became 100 μm or more, and a poor result (×) was shown.

That is, as in Examples 1 to 5, a flexible material having a Young's modulus of 5 kgf / mm ² or less (nitrile rubber, styrene-butadiene rubber, sponge-like styrene-butadiene rubber or neoprene rubber) is formed on the iron core surface. Are laminated at a thickness of 5 to 50 mm to form an inner layer, and a Young's modulus of 10 to 10,000 kgf / mm is formed on the inner layer.
^When the hard film-like coating material (nylon, polyimide or polyester) 2 is laminated to a thickness of 0.1 to 10 mm to form an outer layer, good results are obtained in an abrasion test and a liquid squeezing test. It was confirmed that the life was extremely long.

[0030]

As described above, according to the present invention,
Laminate the inner layer made of flexible material on the surface of the metal core material,
Since an outer layer made of a film-like coating harder than a flexible material is laminated on the inner layer, the liquid drainage performance does not decrease even when used for a long time exceeding 200 days. It has an excellent effect that it can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing a cross-sectional structure of a ringer roll according to the present invention.

FIG. 2 is a schematic side view illustrating a wear test and a liquid squeezing test of the sample roll of the present embodiment.

FIG. 3 is a schematic front view illustrating an abrasion test and a liquid squeezing test of the sample roll of the present embodiment.

FIG. 4 is an enlarged view of a convex portion of the iron roll of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ringer roll 2 Metal core material 3 Inner layer (flexible material) 4 Outer layer 4a Film-shaped coating material 5 Heat sealing resin 6 Heating means

Claims (5)

[Claims] 1. A ringer roll for removing a liquid component adhering to both sides of a metal strip to be transported, wherein an inner layer made of a flexible material is laminated on a surface of a metal core material,
A ringer roll comprising an outer layer made of a film-like coating harder than a flexible material laminated on the inner layer. 2. The inner layer has a Young's modulus of 0.01 to 5 k.
gf / mm ² or less flexible material, 5-50mm
The outer layer has a Young's modulus of 10 to 1
Made from a film-like coating of 0,000kgf / mm ^2, wringer roll according to claim 1 which is laminated to a thickness of 0.1 to 10 mm. 3. The flexible material constituting the inner layer is rubber,
3. The sponge rubber or urethane, wherein the film-like coating constituting the outer layer is nylon, polyester, polyimide or polyethylene.
The ringer roll described in 1. 4. A method in which a flexible material is lined on a surface of a cylindrical metal core material, and then a harder film-like coating is heat-fused on the flexible material. Method for producing ringer rolls. 5. A ringer characterized in that after a flexible material is lined on the surface of a cylindrical metal core material, a harder film-like coating is adhered onto the flexible material. Roll manufacturing method.