Effect of Reasonable Production Process on Pinholes of Double Zero Aluminum Foil

2017/7/25 14:05:25

The effect of the rational production process on pinholes

(1) Control of post-tension and rolling speed In the production of aluminum foil, the control of the tension and rolling speed when the organic combination and adjust the performance of rolling oil and roller surface roughness, especially the formation of finished products before and Finished pass, whether it can effectively control the control tension and rolling speed, will greatly affect the pinhole. Through practice can be found if there is a relatively large post-tension or rolling speed, will significantly increase the number of double-aluminum foil pinhole, which appears to a large extent with the band. If you have a relatively small post-tension or rolling speed, not only will not affect the production of aluminum foil speed, there will be the corresponding slot, wrinkles. In order to effectively control the post-tension and rolling speed of the finished product, it is necessary to specify the rolling speed of the post-tension and the rolling speed not higher than 600 m / min, and the uncoiling tension can be controlled by the uncoiling current, and the tension current can not be higher than 85A , After running for some time, you can clearly control the number of double zero aluminum foil pinhole.

(2) roll surface roughness. In the production of double-zero aluminum foil, it is necessary to strictly control the surface roughness of the roll. If it has a relatively small roll surface roughness, it will have a relatively slow rolling speed, increase the productivity and increase the production cost. If the roll surface roughness , Will have a relatively fast rolling speed, easy to break, forming a lot of pinholes, thereby reducing the aluminum foil surface finish. In order to ensure product quality and stable production, to minimize the number of pinholes, in the actual production, it is necessary to make clear: the surface roughness of the roll should be controlled in the range of 0.02 ~ 0.03 area; in the rolling surface roughness should be controlled 0.03 ~ 0.05.05 range, in addition to the need to have uniform roll surface roughness.

(3) Rolling oil filtration accuracy. In the production of aluminum foil, rolling oil with washing, to undertake, lubrication, cooling the role of rolling aluminum foil in the process, the need for continuous use of rolling oil to wash the aluminum foil surface and roll, in the deformation of the formation of a certain wedge Oil film, rolling oil is a viscous fluid with a certain viscosity, adsorption on the foil surface, and then the formation of relatively solid ink.