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Question:

When aluminium roll is rolled 0.14, when roll take off, loose layer how to return a responsibility?

Relevant question 5Excuse me, what's the meaning of your "deoiling effect"? And you answer two kinds of performance, my understanding is that the oil removal effect is not good, lead to aluminum volume is not neat, what is the difference between the two? Solution, thank you

Answer:

Oil removal effect is not good rolling oil remover oil extrusion is not complete, coiling in aluminum strip surface residual oil too much, after coiling because of oil coated on the aluminum coil inside played a supporting role in the beginning of aluminum roll edge round, with aluminum coil of diameter increases, the inner pressure increases.
when this phenomenon occurs in feeding occurs when you say the phenomenon, when parking tension shock or mutation, the inner drum contraction material, inner sleeve trace diameter decreases, emergency stop when the inertia torque increase, will influence on the oil film, and is the inner bag sleeve is not tight, causing the inner diameter decreases due to aluminum transfer from the inner ring to slide staggered, outer ring, the outer ring can be transferred to the volume of the material into a neat is not neat, not fully delivered appeared loose layer.
The layers between the extrusion effect increases, there is a high speed roll out effect, so that the support of oil film between layer and layer thinning, especially edge thinning, lost support of the aluminum layer partial collapse, there is the edge of the water ripple condition serious if the aluminum layer a big part of the in-plane film thickness thinning, will occur due to the inner tension decreases, torque generated in the outer layer of the strong rolling tension, will roll toward the side with the offset, coil diameter is larger, the offset will become increasingly large, even from the reel, offset The direction is uncertain, but from the analysis of stress can be analyzed;
I think the 0.14mm is certainly not the aluminum coil lining sleeve forgot, then the biggest doubt is the oil removal effect is not good, with rolling after the aluminum layer between the leakage for aluminium roll support is not enough, the collapse of the volume, the specific performance is the edge of the circular aluminum layer was uniform into ripples; in addition is a kind of expression is down when the aluminum coil suddenly becomes uneven, but the bad effect caused by oil

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