Device for improving surface quality of aluminum coil

Abstract

The utility model discloses a device for improving the surface quality of an aluminum coil, which comprises an oil tank, the oil tank is of a main body structure without a cover, a plurality of carbon dioxide nozzles are arranged above an opening of the oil tank, an oil filtering material position is arranged on the side of the oil tank, a working material position of the aluminum coil is arranged at the bottom of the oil tank, and the working material position is used for positioning the aluminum coil. Oil immersion and film covering are carried out before the aluminum coil is transported and rolled, according to different processes and different immersion time, it is guaranteed that oil films exist between aluminum coil plate layers, friction between the aluminum coil plate layers is reduced, scratches and scratches generated by friction are avoided, and therefore the appearance quality of the surface of the aluminum coil is improved, and meanwhile when the aluminum coil is drained after being immersed in oil, the aluminum coil is prevented from being damaged. And the rolling oil collected by the collecting platform can return to the oil tank again for recycling.

Description

Technical Field

[0001] The utility model relates to a device for improving the surface quality of an aluminum coil. Background Art

[0002] The aluminum plate is rolled by straightening the strip with uncoiling tension, then rolling it with rollers, and rolling it to the target thickness before reeling it in. The straightening and flattening force between uncoiling and rollers is called uncoiling tension, and the straightening and flattening force between coiling and rollers is called coiling tension. The role of tension is to flatten and straighten the strip to prevent it from being crushed and broken due to lack of flattening during the rolling process. Another role is to coil the strip. The coiling tension is generally greater than the yield strength of the strip to complete the coiling work; if the coiling tension is too small, the strip cannot be coiled, and if the tension is too large, the friction between the plates will increase and cause scratches; therefore, scratches and other defects are easily produced on the surface of aluminum strips, and the surface quality is very difficult to control and master;

[0003] Especially after the aluminum strip is just threaded and the head is bitten into the roller, tension begins to be applied. At the moment of applying tension, a tensile stress opposite to the rolling direction is suddenly generated, and friction occurs between the upper and lower layers on the surface of the aluminum coil, resulting in scratches of varying degrees. The scratches are mainly caused during the transportation of the cast-rolled coil to the cold-rolled coil and during the cold-rolled lifting process, followed by the first cold-rolling pass and the annealing pass. Because there is no oil film on the surface of the aluminum strip in these two passes, a layer of oil film will be formed on the surface after rolling in other passes. The oil film of the annealed coil is burned off, and the first cold-rolling pass is when there is no oil film on the surface of the cast-rolled coil. Utility Model Content

[0004] The purpose of the utility model is to solve the above deficiencies in the prior art and provide a device for improving the surface quality of an aluminum coil.

[0005] A device for improving the surface quality of an aluminum coil comprises an oil tank, which is a coverless main structure, a plurality of carbon dioxide nozzles are arranged above the opening, and an oil filter position is arranged on the side of the oil tank.

[0006] Preferably, a working material level of the aluminum coil is provided at the bottom of the oil tank, and the working material level is used to position the aluminum coil.

[0007] Preferably, a step is provided on the side of the fuel tank.

[0008] Preferably, a collecting platform is provided on the oil filter position, and the collecting platform is connected to the oil tank.

[0009] Beneficial effect: Compared with the prior art, the utility model performs oil immersion and coating before the aluminum coil is transported and rolled. According to different processes, different immersion times are used to ensure that there is an oil film between the aluminum coil layers, so as to reduce the friction between the aluminum coil layers and avoid the abrasions and scratches caused by friction, thereby improving the appearance quality of the aluminum coil surface. At the same time, when the aluminum coil is filtered after being immersed in oil, the rolling oil collected by the collection platform can be returned to the oil tank for recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of a device for improving the surface quality of an aluminum coil;

[0011] In the figure, 1. step, 2. carbon dioxide nozzle, 3. oil tank, 4. oil filter level, 5. working level. DETAILED DESCRIPTION

[0012] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0013] like Figure 1 As shown, step 1, carbon dioxide nozzle 2, oil tank 3, oil filter position 4, working position 5;

[0014] A device for improving the surface quality of an aluminum coil comprises an oil tank 3, which is a main structure without a cover, and a working material level 5 for the aluminum coil is arranged at the bottom of the oil tank 3, and the working material level 5 is used to position the aluminum coil. A plurality of carbon dioxide nozzles 2 are arranged above the oil tank 3, and an oil filter material level 4 is arranged on the side of the oil tank 3, and a collecting platform is arranged on the oil filter material level 4, and the collecting platform is connected to the oil tank 3. A step 1 is arranged on the side of the oil tank 3.

[0015] Instructions for use: Before the aluminum coil is transported, the aluminum coil is immersed and coated by this device to avoid interlayer adhesion of the cast and rolled coil during transportation, abrasions during the uncoiling process and the process of building tension, and annealing adhesion of the aluminum coil after annealing. During the entire process of the aluminum coil, the aluminum coil is not covered with oil film during the first cold rolling pass and the annealing pass. Therefore, this device is especially used to coat the aluminum coil after rolling and annealing. The immersion time of the cast and rolled coil is different from that of the annealed coil. The thickness of the cast and rolled coil is relatively thick, the gap between the layers is larger, the oil immersion time is shorter, and the thickness of the coil after intermediate annealing is thinner. Different oil immersion times will be set for aluminum coils of other processes to ensure that there is a certain oil film between the aluminum coil layers.

[0016] In addition, by modifying the PLC program, the unwinding tension adopts the form of gradient tension, so that the input force increases gradually to prevent scratches caused by a sudden and substantial increase in force.

[0017] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for improving the surface quality of an aluminum coil, characterized in that: The utility model comprises an oil tank, which is a main structure without a cover, a plurality of carbon dioxide nozzles are arranged above the opening of the oil tank, and an oil filter position is arranged on the side of the oil tank.

2. The device for improving the surface quality of an aluminum coil according to claim 1, characterized in that: A working material level of the aluminum coil is provided at the bottom of the oil tank, and the working material level is used to position the aluminum coil.

3. The device for improving the surface quality of an aluminum coil according to claim 1, characterized in that: There are steps on the side of the fuel tank.

4. The device for improving the surface quality of an aluminum coil according to claim 1, characterized in that: A collecting platform is provided on the oil filtering position, and the collecting platform is connected with the oil tank.

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