A method for improving the roll wear and heat generation during rolling

Abstract

The application discloses a method for improving rolling wear and heat of a roller. The method comprises the following steps: adopting a twenty-roller rolling mill to roll a foil, wherein the twenty-roller rolling mill comprises an upper rolling roller group and a lower rolling roller group arranged in a vertical mode, and the upper rolling roller group and the lower rolling roller group are used for rolling the foil; the upper rolling roller group comprises a first layer of upper rolling rollers, a second layer of upper rolling rollers, a third layer of upper rolling rollers and a fourth layer of upper rolling rollers arranged in a mode from a side close to the foil to a side far away from the foil; the lower rolling roller group comprises a first layer of lower rolling rollers, a second layer of lower rolling rollers, a third layer of lower rolling rollers and a fourth layer of lower rolling rollers arranged in a mode from a side close to the foil to a side far away from rolling the foil; and the rolling rollers of the second layer of upper rolling rollers and the second layer of lower rolling rollers comprise a roller body part and a rotating shaft part, the two ends of the roller body part are connected with the rotating shaft part, a gasket is sleeved on the rotating shaft part, and the gasket abuts against the axial end surface of the roller body part.

Description

Technical Field

[0001] This invention relates to the field of TMF foil manufacturing technology, and more specifically to a method for improving the heat generated by rolling wear. Background Technology

[0002] Ultra-thin metal foil (TMF) is produced by rolling thick raw material plates into thinner foils, followed by edge trimming, cleaning, or annealing to meet final product requirements.

[0003] The rolling stage of foil is completed by a rolling mill. During the rolling process, each layer of rolls will move axially during rotation, which will aggravate the friction between the two ends of the rolls and the front and rear baffles. This will cause the end faces of the front and rear baffles to heat up, and the rolls will wear out. Metal debris will be generated and washed onto the foil surface by the rolling oil during the rolling process, resulting in waste spots on the foil surface and a decrease in foil quality. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention provides a method for improving the heat generation caused by wear during rolling of rolls, thereby solving at least one of the above-mentioned technical problems.

[0005] The technical solution of this invention is: a method for improving the wear and heat generation of rolling rolls, using a 20-roll mill to roll foil, the 20-roll mill including an upper rolling roll group and a lower rolling roll group arranged vertically, the upper rolling roll group and the lower rolling roll group are used for rolling foil, the upper rolling roll group is arranged in sequence from the side adjacent to the foil to the side away from the foil as a first layer upper rolling roll group, a second layer upper rolling roll group, a third layer upper rolling roll group and a fourth layer upper rolling roll group; the lower rolling roll group is arranged in sequence from the side adjacent to the rolled foil to the side away from the rolled foil as a first layer lower rolling roll group, a second layer lower rolling roll group, a third layer lower rolling roll group and a fourth layer lower rolling roll group, characterized in that the rolls of the second layer upper rolling roll group and the second layer lower rolling roll group include a roll body part and a rotating shaft part, the two ends of the roll body part are connected to the rotating shaft part;

[0006] A gasket is fitted onto the rotating shaft, and the gasket abuts against the axial end face of the roller body.

[0007] More preferably, the axial length of the roller body is 176 mm. Replacing the conventional 190 mm roller body with 176 mm shortens the length and provides space for the gasket installation.

[0008] More preferably, the outer diameter of the roller body is 24 mm.

[0009] More preferably, the roller body is provided with a 7mm thick pad on both the left and right sides.

[0010] The roller body has a roller surface length of 176mm and two side pads of 7mm each, which is the same as the original roller surface of 190mm.

[0011] More preferably, at least two gaskets are provided. Each gasket has a thickness of 2-3 mm.

[0012] The total thickness of the gaskets on one side of the roller body is 7 mm.

[0013] More preferably, the outer diameter of the gasket is less than 24 mm and greater than 22 mm.

[0014] A further preferred embodiment is a 20-roll mill with an eccentric wheel mechanism clamp type.

[0015] More preferably, the gasket is made of bearing steel or mold steel.

[0016] More preferably, the sum of the axial lengths of the roller body and the rotating shafts at both ends is 214 mm.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] The lengths at both ends of the rolls in the second upper rolling roll group and the second lower rolling roll group are replaced by superimposed shims, while the total length remains unchanged;

[0019] Compared to the original rolls, frictional heating and wear are reduced during the rolling process, and there is almost no smoke. Surface waste during foil rolling has been reduced from being a frequent occurrence to being extremely rare. Attached Figure Description

[0020] Figure 1 This is a partial structural schematic diagram of the rolling roll in specific embodiment 1 of the present invention;

[0021] Figure 2 This is a structural schematic diagram of step one of a specific embodiment of the present invention;

[0022] Figure 3 This is a diagram showing the arrangement of the rolling rolls of a 20-roll mill according to a specific embodiment of the present invention.

[0023] Figure 4 This is a partial structural schematic diagram of the rolling roll in Comparative Example 1. Detailed Implementation

[0024] See Figures 1 to 3Specific embodiment 1, a method for improving the wear and heat generation of rolling rolls, uses a 20-roll mill to roll foil. The 20-roll mill includes an upper rolling roll group and a lower rolling roll group arranged vertically. The upper rolling roll group and the lower rolling roll group are used to roll the foil. In the upper rolling roll group, from the side adjacent to the foil to the side away from the foil, there are a first layer of upper rolling roll group, a second layer of upper rolling roll group, a third layer of upper rolling roll group, and a fourth layer of upper rolling roll group. In the lower rolling roll group, from the side adjacent to the rolled foil to the side away from the rolled foil, there are a first layer of lower rolling roll group, a second layer of lower rolling roll group, a third layer of lower rolling roll group, and a fourth layer of lower rolling roll group. The rolls of the second layer of upper rolling roll group 1 and the second layer of lower rolling roll group 2 include a roll body part 11 and a rotating shaft part. The two ends of the roll body part 11 are connected to the rotating shaft part. A shim 3 is sleeved on the rotating shaft part, and the shim 3 abuts against the axial end face of the roll body part.

[0025] The axial length of the roller body 11 is 176 mm. Replacing the conventional 190 mm roller body with 176 mm shortens the length and provides space for the gasket installation. The sum of the axial lengths of the roller body and the rotating shafts at both ends is 214 mm.

[0026] The outer diameter of the roller body 11 is 24 mm.

[0027] A 7mm thick pad 4 is provided on both the left and right sides of the roller body 11. The roller surface length of the roller body is 176mm, and the pads on both sides are 7mm each, which is flush with the original roller surface of 190mm.

[0028] At least two gaskets 4 are provided. The thickness of each gasket is 2-3 mm; the total thickness of the gaskets 4 on one side of the roller body 11 is 7 mm.

[0029] The outer diameter of the gasket is less than 24 mm and greater than 22 mm.

[0030] The 20-roll mill is a clamp-type 20-roll mill with an eccentric wheel mechanism.

[0031] The gasket is made of bearing steel or mold steel.

[0032] See Figure 4 In Comparative Example 1, in a conventional 20-roll mill, the rolls of the second upper rolling roll group and the second lower rolling roll group include a roll body and a shaft. The axial length of the roll body is 190 mm. The sum of the axial lengths of the roll body and the shafts at both ends is 214 mm.

[0033] The material was fed into the rolling mill, and a comparative rolling test was conducted. In Specific Example 1, compared with Comparative Example 1, the heat generation of the panel during the two-layer rolling process was greatly improved, and the surface defects of the rolled foil were significantly reduced.

[0034] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for improving the heat generation due to wear during rolling, comprising rolling foil using a 20-roll mill, the 20-roll mill including an upper rolling roll group and a lower rolling roll group arranged vertically, the upper rolling roll group and the lower rolling roll group being used for rolling foil, wherein the upper rolling roll group consists of a first layer of upper rolling roll group, a second layer of upper rolling roll group, a third layer of upper rolling roll group, and a fourth layer of upper rolling roll group arranged sequentially from the side adjacent to the foil to the side away from the foil; wherein the lower rolling roll group consists of a first layer of lower rolling roll group, a second layer of lower rolling roll group, a third layer of lower rolling roll group, and a fourth layer of lower rolling roll group arranged sequentially from the side adjacent to the rolled foil to the side away from the rolled foil, characterized in that, The rolls of the second upper rolling roll group and the second lower rolling roll group include a roll body and a rotating shaft, with the two ends of the roll body connected to the rotating shaft; A gasket is fitted onto the rotating shaft, and the gasket abuts against the axial end face of the roller body.

2. The method for improving the heat generation caused by wear during rolling of rolls according to claim 1, characterized in that: The axial length of the roller body is 176 mm.

3. The method for improving the heat generation due to wear during rolling of rolls according to claim 1, characterized in that: The outer diameter of the roller body is 24 mm.

4. The method for improving the heat generation due to wear during rolling of rolls according to claim 1, characterized in that: The roller body is provided with 7mm thick pads on both the left and right sides.

5. The method for improving the heat generation due to wear during rolling of rolls according to claim 1, characterized in that: At least two gaskets are provided; Each gasket is 2-3mm thick; The total thickness of the gaskets on one side of the roller body is 7 mm.

6. The method for improving the heat generation caused by wear during rolling of rolls according to claim 1, characterized in that: The outer diameter of the gasket is less than 24 mm and greater than 22 mm.

7. The method for improving the heat generation due to wear during rolling of rolls according to claim 1, characterized in that: The 20-roll mill is an eccentric wheel mechanism clamp-type 20-roll mill.

8. The method for improving the heat generation due to wear during rolling as described in claim 1, characterized in that: The gasket is made of bearing steel or mold steel.

9. The method for improving the heat generation caused by wear during rolling of rolls according to claim 1, characterized in that: The sum of the axial lengths of the roller body and the rotating shafts at both ends is 214 mm.

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