1. The roll shape of the aluminum sheet is incorrectly folded (folded), such as heating of the calender bearing; 2. Air bubbles on the surface of the aluminum ingot, and the
A variety of small defects often appear on the surface of aluminum plates, such as unevenness, fracture, uneven thickness, etc. What are the reasons for these defects? Now the aluminum
Auf der Oberflche von Aluminiumplatten treten hufig verschiedene kleine Defekte auf, wie Unebenheiten, Fraktur, ungleichmige Dicke, etc. Was sind die Grnde fr diese Mngel?
Then, do you know the reasons for the defects in the appearance of aluminum plates? The reasons are as follows: 1.The folding (folding) roller shape is incorrect. For
The main reasons: plate, strip in the process of processing production and guide road, equipment contact friction; finishing acceptance or packaging operations
1. Surface Defects: Surface defects are one of the most common quality issues in aluminium plates. These include scratches, dents, and marks that occur during handling, transportation,
Main causes: rolls, work rolls, packaging oiling rolls and the surface of the plate and strip are stuck with metal chips or dirt; other process equipment (e.g. calender, straightener, feed rolls, guide rolls) have defects or
Main reasons: The surface of hot-rolled strip steel and guide rollers has sharp defects or is stained with hard dirt; the guide rollers and guide paths of cutting, rolling, and
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3. SURFACE DEFECTS Various defects mar the surface appearance of extrusion, including die lines, scoring, pick-up, and tearing. Pick-up and die lines are the most serious surface defects
(3) Wrinkle. Because of the serious bad shape of the plate, in the aluminum foil coiling or expansion will form a wrinkle, its essence for tension is not enough to make the foil
In a previous article we discussed several reasons for pot defect of the sheet. Here we will proceed to deal with the other two reasons: damp wrapping paper board and inappropriate cleaning process. Paper or