ROLL STRUCTURE OF A FOUR-HIGH ROLLING MILL FOR PREPARING ULTRA-THIN METAL FOILS WITH SURFACE MICROTEXTURE AND A ROLLING METHOD THEREOF

Abstract

A roll structure of a four-high rolling mill for preparing ultra-thin metal foils with surface microtexture and a rolling method thereof, the roll structure of the four-high rolling mill includes: an upper supporting guide roll, a convex working roll, a concave working roll, and a lower supporting guide roll arranged in sequence from top to bottom; diameters of the upper and lower supporting guide roll are the same; diameters of the convex and concave working roll are the same; and the upper supporting guide roll and the concave working roll is provided with grooves that match the convex working roll; a textured microtexture is provided on a groove surface, the roll structure of the four-high rolling mill prevents direct contact between the microtextured surface of the concave work roll grooves and the supporting guide rolls, directly addressing the issue of roll wear in traditional microtexture rolling processes.

Claims

1. A roll structure of a four-high rolling mill for preparing ultra-thin metal foils surface microtexture, wherein, comprising: an upper supporting guide roll, a convex working roll, a concave working roll, and a lower supporting guide roll arranged in sequence from top to bottom; wherein diameters of the upper supporting guide roll and the lower supporting guide roll are the same; diameters of the convex working roll and the concave working roll are the same; and the upper supporting guide roll and the concave working roll being provided with grooves that match the convex working roll; textured microtexture being provided on a groove surface of the concave working roll, and the textured microtexture are reinforced.

2. The roll structure of the four-high rolling mill for preparing ultra-thin metal foils with surface microtexture according to claim 1, wherein the textured microtexture are transverse textured microtexture, longitudinal textured microtexture, or transverse and longitudinal textured microtexture; and a cross-sectional shape of the textured microtexture is sine waveform, triangle, trapezoid, or rectangle.

3. The roll structure of the four-high rolling mill for preparing ultra-thin metal foils with surface microtexture according to claim 1, wherein, the textured microtexture of the groove surface are reinforced by carburizing or nitrogen treatment.

4. The roll structure of the four-high rolling mill for preparing ultra-thin metal foils with surface microtexture according to claim 2, wherein, a depth of channels of the transverse textured microtexture is 10 to 50 m, and a width between tops of adjacent transverse textured microtexture is 10 to 50 m.

5. A rolling method for preparing ultra-thin metal foils with surface textured microtexture, the rolling method is applied to a roll structure of a four-high rolling mill of claim 1, wherein, comprising steps of: S1, choosing a micro rolling mill equipped with a roll structure of a four-high rolling mill; and S2, placing an ultra-thin metal foils to be rolled on the micro rolling mill with the roll structure of the four-high rolling mill, and starting a rolling process to form textured microtexture on a surface of the ultra-thin metal foils to be rolled; S3, spraying anhydrous ethanol onto the surface with the textured microtexture; S4, after the anhydrous ethanol is complete evaporation, performing a heat treatment, a straightening operation, an edge cutting operation, and a segmentation in sequence, to obtain an ultra-thin metal foils with the surface textured microtexture.

6. The rolling method according to claim 5, wherein, a thickness of the ultra-thin metal foils is 20 to 100 m.

7. The rolling method according to claim 5, wherein, a material of the ultra-thin metal foils is one of copper, aluminum, copper alloy, aluminum alloy, magnesium alloy, stainless steel, and titanium metal.

8. The rolling method according to claim 5, wherein, before S2, the rolling method also comprises the following steps: S21, performing a surface cleaning process on the ultra-thin metal foils to be rolled; wherein the surface cleaning process comprises an anhydrous ethanol cleaning process and an ultrasonic cleaning process, and the anhydrous ethanol cleaning process is performed before the ultrasonic cleaning process.

9. The rolling method according to claim 5, wherein, rolling conditions are as follows: a set value of a roll gap is 0 to 100 m, and a rolling speed is 0.1 to 1 m min.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG. 1 is a schematic structural diagram of a roll structure of a four-high rolling mill for preparing ultra-thin metal foils with surface microtexture according to an embodiment of the present disclosure.

[0024] FIG. 2 is a front view of the roll structure of the four-high rolling mill for preparing ultra-thin metal foils with surface microtexture of FIG. 1.

[0025] FIG. 3 is a schematic structural diagram of a convex working roll and a concave working roll in a matching state.

[0026] FIG. 4 is a front view of the convex working roll and the concave working roll in the matching state.

[0027] FIG. 5 is a schematic structural diagram of a location of the textured microtexture of the concave working roll.

[0028] FIG. 6 is a side view of a transverse textured microtexture of the concave working roll.

[0029] FIG. 7 is a front view of a longitudinal textured microtexture of the concave working roll.

[0030] FIG. 8 is a side view of a transverse and longitudinal textured microtexture of the concave working roll.

[0031] FIG. 9 is a schematic structural diagram of waveforms of a cross-sectional shape of the textured microtexture.

[0032] FIG. 10 is a flow chart of a rolling method for preparing ultra-thin metal foils with surface textured microtexture according to an embodiment of the present disclosure.

DESCRIPTION OF THE REFERENCE NUMERAL

[0033] 1 upper supporting guide roll, 2 lower supporting guide roll, 3 convex working roll, 4 concave working roll.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The technical solutions in the embodiments of the present disclosure will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure rather than all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present disclosure.

Embodiment 1

[0035] As shown in FIGS. 1-9, a roll structure of the four-high rolling mill for preparing ultra-thin metal foils with surface microtexture, including: an upper supporting guide roll 1, a convex working roll 3, a concave working roll 4, and a lower supporting guide roll 2 arranged in sequence from top to bottom. Diameters of the upper supporting guide roll 1 and the lower supporting guide roll 2 are the same. Diameters of the convex working roll 3 and the concave working roll 4 are the same, the upper supporting guide roll 2 and the concave working roll 4 are provided with grooves that match the convex working roll 3. Textured microtexture are provided on a groove surface of the concave working roll 4, and the textured microtexture are reinforced by carburizing or nitrogen treatment.

[0036] Further, the textured microtexture are transverse textured microtexture, longitudinal textured microtexture, or transverse and longitudinal textured microtexture; and a cross-sectional shape of the textured microtexture is sine waveform, triangle, trapezoid, or rectangle. A depth of channels of the transverse textured microtexture is 10 to 50 m, and a width between tops of adjacent transverse textured microtexture is 10 to 50 m.

Embodiment 2

[0037] This embodiment discloses a rolling method for preparing ultra-thin metal foils with surface textured microtexture, as shown in FIG. 10, including the following steps:

[0038] S1, choosing a micro rolling mill equipped with a roll structure of a four-high rolling mill.

[0039] This embodiment adopts the roll structure of the four-high rolling mill for preparing ultra-thin metal foils with surface microtexture of the embodiment 1, to roll a copper ultra-thin metal foils to be rolled.

[0040] S21, performing an anhydrous ethanol cleaning process on the copper ultra-thin metal foils to be rolled with a thickness of 50 m, the copper ultra-thin metal foils to be rolled is immersed in anhydrous ethanol, drying upper and lower surfaces and then performing an ultrasonic cleaning process cleaning process on the copper ultra-thin metal foils to be rolled, to remove any residue on the surfaces and obtain clean copper ultra-thin metal foils to be rolled.

[0041] S2, positioning and clamping the copper ultra-thin metal foils to be rolled between the convex working roll 3 and the concave working roll 4 of the micro rolling mill with the roll structure of the four-high rolling mill, starting a rolling process to form textured microtexture on a surface of the ultra-thin metal foils to be rolled. The rolling conditions are as follows: the gap between the convex working roll 3 and the concave working roll 4 is 35 m, the rolling speed is 0.5 mm/s, and after rolling, the surface of the copper ultra-thin metal foils forms a transverse texture microtexture. The cross-sectional shape of the texture microtexture is a triangular wave, with a channel depth of 10 m. The width between the tops of adjacent texture microtexture is 10 m.

[0042] S3, spraying the anhydrous ethanol onto the surface with the textured microtexture. After the anhydrous ethanol is complete evaporation, performing a heat treatment, a straightening operation, an edge cutting operation, and a segmentation in sequence, to obtain an ultra-thin metal foils with the transverse textured microtexture.

Embodiment 3

[0043] This embodiment discloses a rolling method for preparing ultra-thin metal foils with transverse and longitudinal textured microtexture, including the following steps:

[0044] S1, choosing a micro rolling mill equipped with a roll structure of a four-high rolling mill.

[0045] This embodiment adopts the roll structure of the four-high rolling mill for preparing ultra-thin metal foils with surface microtexture of the embodiment 1, to roll an aluminium ultra-thin metal foils to be rolled.

[0046] S21, performing an anhydrous ethanol cleaning process on the aluminium ultra-thin metal foils to be rolled with a thickness of 100 m, the aluminium ultra-thin metal foils to be rolled is immersed in anhydrous ethanol, drying upper and lower surfaces and then performing an ultrasonic cleaning process cleaning process on the aluminium ultra-thin metal foils to be rolled, to remove any residue on the surfaces and obtain clean aluminium ultra-thin metal foils to be rolled.

[0047] S2, positioning and clamping the aluminium ultra-thin metal foils to be rolled between the convex working roll 3 and the concave working roll 4 of the micro rolling mill with the roll structure of the four-high rolling mill, starting a rolling process to form textured microtexture on a surface of the ultra-thin metal foils to be rolled. The rolling conditions are as follows: the gap between the convex working roll 3 and the concave working roll 4 is 40 m, the rolling speed is 1 mm/s, and after rolling, the surface of the aluminium ultra-thin metal foils forms a transverse texture microtexture. The cross-sectional shape of the texture microtexture is a triangular wave, with a channel depth of 50 m. The width between the tops of adjacent texture microtexture is 50 u m.

[0048] S3, spraying the anhydrous ethanol onto the surface with the textured microtexture. After the anhydrous ethanol is complete evaporation, performing a heat treatment, a straightening operation, an edge cutting operation, and a segmentation in sequence, to obtain an aluminium ultra-thin metal foils with the transverse textured microtexture.

Embodiment 4

[0049] This embodiment discloses a rolling method for preparing ultra-thin metal foils with surface textured microtexture, including the following steps:

[0050] S1, choosing a micro rolling mill equipped with a roll structure of a four-high rolling mill.

[0051] This embodiment adopts the roll structure of the four-high rolling mill for preparing ultra-thin metal foils with surface microtexture of the embodiment 1, to roll an aluminium alloy ultra-thin metal foils to be rolled.

[0052] S21, performing an anhydrous ethanol cleaning process on the aluminium alloy ultra-thin metal foils to be rolled with a thickness of 20 m, the aluminium alloy ultra-thin metal foils to be rolled is immersed in anhydrous ethanol, drying upper and lower surfaces and then performing an ultrasonic cleaning process cleaning process on the aluminium alloy ultra-thin metal foils to be rolled, to remove any residue on the surfaces and obtain clean aluminium alloy ultra-thin metal foils to be rolled.

[0053] S2, positioning and clamping the aluminium alloy ultra-thin metal foils to be rolled between the convex working roll 3 and the concave working roll 4 of the micro rolling mill with the roll structure of the four-high rolling mill, starting a rolling process to form textured microtexture on a surface of the ultra-thin metal foils to be rolled. The rolling conditions are as follows: the gap between the convex working roll 3 and the concave working roll 4 is 5 m, the rolling speed is 0.5 mm/s, and after rolling, the surface of the aluminium alloy ultra-thin metal foils forms a transverse texture microtexture. The cross-sectional shape of the texture microtexture is a triangular wave, with a channel depth of 10 m. The width between the tops of adjacent texture microtexture is 10 m.

[0054] S3, spraying the anhydrous ethanol onto the surface with the textured microtexture. After the anhydrous ethanol is complete evaporation, performing a heat treatment, a straightening operation, an edge cutting operation, and a segmentation in sequence, to obtain a aluminium alloy ultra-thin metal foils with the transverse textured microtexture.

Embodiment 5

[0055] This embodiment discloses a rolling method for preparing ultra-thin metal foils with surface textured microtexture, including the following steps:

[0056] S1, choosing a micro rolling mill equipped with a roll structure of a four-high rolling mill.

[0057] This embodiment adopts the roll structure of the four-high rolling mill for preparing ultra-thin metal foils with surface microtexture of the embodiment 1, to roll a magnesium alloy ultra-thin metal foils to be rolled.

[0058] S21, performing an anhydrous ethanol cleaning process on the magnesium alloy ultra-thin metal foils to be rolled with a thickness of 20 m, the magnesium alloy ultra-thin metal foils to be rolled is immersed in anhydrous ethanol, drying upper and lower surfaces and then performing an ultrasonic cleaning process cleaning process on the magnesium alloy ultra-thin metal foils to be rolled, to remove any residue on the surfaces and obtain clean magnesium alloy ultra-thin metal foils to be rolled.

[0059] S2, positioning and clamping the magnesium alloy ultra-thin metal foils to be rolled between the convex working roll 3 and the concave working roll 4 of the micro rolling mill with the roll structure of the four-high rolling mill, starting a rolling process to form textured microtexture on a surface of the ultra-thin metal foils to be rolled. The rolling conditions are as follows: the gap between the convex working roll 3 and the concave working roll 4 is 0 m, the rolling speed is 0.1 mm/s, and after rolling, the surface of the magnesium alloy ultra-thin metal foils forms a transverse texture microtexture. The cross-sectional shape of the texture microtexture is a triangular wave, with a channel depth of 10 m. The width between the tops of adjacent texture microtexture is 10 m.

[0060] S3, spraying the anhydrous ethanol onto the surface with the textured microtexture. After the anhydrous ethanol is complete evaporation, performing a heat treatment, a straightening operation, an edge cutting operation, and a segmentation in sequence, to obtain a magnesium alloy ultra-thin metal foils with the transverse textured microtexture.

Embodiment 6

[0061] This embodiment discloses a rolling method for preparing ultra-thin metal foils with surface textured microtexture, including the following steps:

[0062] S1, choosing a micro rolling mill equipped with a roll structure of a four-high rolling mill.

[0063] This embodiment adopts the roll structure of the four-high rolling mill for preparing ultra-thin metal foils with surface microtexture of the embodiment 1, to roll a stainless steel ultra-thin metal foils to be rolled.

[0064] S21, performing an anhydrous ethanol cleaning process on the stainless steel ultra-thin metal foils to be rolled with a thickness of 30 m, the stainless steel ultra-thin metal foils to be rolled is immersed in anhydrous ethanol, drying upper and lower surfaces and then performing an ultrasonic cleaning process cleaning process on the stainless steel ultra-thin metal foils to be rolled, to remove any residue on the surfaces and obtain clean stainless steel ultra-thin metal foils to be rolled.

[0065] S2, positioning and clamping the stainless steel ultra-thin metal foils to be rolled between the convex working roll 3 and the concave working roll 4 of the micro rolling mill with the roll structure of the four-high rolling mill, starting a rolling process to form textured microtexture on a surface of the ultra-thin metal foils to be rolled. The rolling conditions are as follows: the gap between the convex working roll 3 and the concave working roll 4 is 10 m, the rolling speed is 0.5 mm/s, and after rolling, the surface of the stainless steel ultra-thin metal 1 foils forms a transverse texture microtexture. The cross-sectional shape of the texture microtexture is a triangular wave, with a channel depth of 15 m. The width between the tops of adjacent texture microtexture is 15 m.

[0066] S3, spraying the anhydrous ethanol onto the surface with the textured microtexture. After the anhydrous ethanol is complete evaporation, performing a heat treatment, a straightening operation, an edge cutting operation, and a segmentation in sequence, to obtain a stainless steel ultra-thin metal foils with the transverse textured microtexture.

Embodiment 7

[0067] This embodiment discloses a rolling method for preparing ultra-thin metal foils with surface textured microtexture, including the following steps:

[0068] S1, choosing a micro rolling mill equipped with a roll structure of a four-high rolling mill.

[0069] This embodiment adopts the roll structure of the four-high rolling mill for preparing ultra-thin metal foils with surface microtexture of the embodiment 1, to roll a titanium ultra-thin metal foils to be rolled.

[0070] S21, performing an anhydrous ethanol cleaning process on the titanium ultra-thin metal foils to be rolled with a thickness of 50 m, the titanium ultra-thin metal foils to be rolled is immersed in anhydrous ethanol, drying upper and lower surfaces and then performing an ultrasonic cleaning process cleaning process on the titanium ultra-thin metal foils to be rolled, to remove any residue on the surfaces and obtain clean titanium ultra-thin metal foils to be rolled.

[0071] S2, positioning and clamping the titanium ultra-thin metal foils to be rolled between the convex working roll 3 and the concave working roll 4 of the micro rolling mill with the roll structure of the four-high rolling mill, starting a rolling process to form textured microtexture on a surface of the ultra-thin metal foils to be rolled. The rolling conditions are as follows: the gap between the convex working roll 3 and the concave working roll 4 is 100 m, the rolling speed is 0.5 mm/s, and after rolling, the surface of the titanium ultra-thin metal foils forms a transverse texture microtexture. The cross-sectional shape of the texture microtexture is a triangular wave, with a channel depth of 10 m. The width between the tops of adjacent texture microtexture is 10 m.

[0072] S3, spraying the anhydrous ethanol onto the surface with the textured microtexture. After the anhydrous ethanol is complete evaporation, performing a heat treatment, a straightening operation, an edge cutting operation, and a segmentation in sequence, to obtain a titanium ultra-thin metal foils with the transverse textured microtexture.

[0073] The ultra-thin metal foils can be a copper alloy ultra-thin metal foils.

[0074] The above are only some embodiments of the present disclosure, and neither the words nor the drawings can limit the protection scope of the present disclosure. Any equivalent structural transformation made by using the contents of the specification and the drawings of the present disclosure under the overall concept of the present disclosure, or directly/indirectly applied in other related technical fields are included in the protection scope of the present disclosure.