铝加工产品给人民生活带来便利，使经济发展有了保障，铝卷就是其主要代表产品之一，但我们在日常使用中偶尔也会遇到一些问题，那么出现这些问题的原因是什么，铝卷生产厂家为你详细解读7点。
Aluminum processing products bring convenience to people's lives and guarantee economic development. Aluminum coil is one of its main representative products, but we occasionally encounter some problems in our daily use. Then what are the reasons for these problems? The aluminum coil manufacturer will read 7 points for you in detail.
1、非金属压痕
1. Nonmetallic indentation
定义：非金属碎屑压在板和带的表面上。表面呈长条状明显点状或黄黑色缺陷。主要原因是轧制工艺设备条件脏、轧制工艺润滑剂脏、工艺润滑剂注射压力不足、板坯表面有划痕。
Definition: Non metallic chips press on the surface of plates and strips. The surface presents long strip shaped obvious spot shaped or yellow black defects. The main reasons are that the rolling process equipment conditions are dirty, the rolling process lubricant is dirty, the injection pressure of the process lubricant is insufficient, and the slab surface has scratches.
2、滑伤
2. Slip injury
定义：由于边缘与表面或表面与表面接触之间的相对滑动或错位而形成的划痕
Definition: scratches caused by relative sliding or dislocation between edges and surfaces or between surfaces
主要原因：在加工和生产过程中，板带与导轨和设备接触时，会产生相对摩擦和划痕。冷轧卷板端面未对齐，竖炉退火和翻转造成错位和层间干扰。间歇性划痕，冷轧时张力不当，退火时层间错位，都会造成划痕。不适当的整理批准或摊铺操作会导致板间滑动和划痕。
Main reason: In the process of processing and production, when the strip contacts with the guide rail and equipment, it will produce relative friction and scratches. The end faces of cold rolled coils are not aligned, and shaft furnace annealing and overturning cause dislocation and interlayer interference. Intermittent scratches, improper tension during cold rolling and dislocation between layers during annealing will all cause scratches. Improper finishing approval or paving operations can cause slippage and scratches between plates.
3、碰伤
3. Bruise
定义：铝卷或铝卷与另一物体碰撞后，板或带的表面或端面被划伤，大部分金属从凹槽边缘突出。
Definition: After the aluminum coil or aluminum coil collides with another object, the surface or end face of the plate or strip is scratched, and most of the metal protrudes from the edge of the groove.
主要原因：搬运或在存放过程中，板材或线圈与其他物体发生碰撞，板材或线圈与退火架或底盘中的其他物体发生碰撞。
Main reasons: during handling or storage, plates or coils collide with other objects, and plates or coils collide with other objects in the annealing rack or chassis.
4、翘角
4. Warping angle
定义：带钢边缘在轧制或剪切后被抬起。
Definition: The edge of strip steel is lifted after rolling or shearing.
主要原因：轧制时压下量过大，轧制时润滑剂分布不均，剪切时刃口调整不当。
Main reasons: excessive reduction during rolling, uneven distribution of lubricant during rolling, improper adjustment of cutting edge during shearing.

5、折伤
5. Kink wound
定义：弯曲板材后产生的变形折叠。主要原因：多辊矫直机送料不正，薄板受到翻转折叠。堆叠纸张时受力不平衡。
Definition: deformation folding after bending sheet. Main reasons: the feeding of the multi roll straightener is not correct, and the sheet is overturned and folded. The force is unbalanced when stacking paper.
6、塌卷
6. Collapse roll
定义：卷芯严重变形，卷形不圆。主要原因：张力不足，外压，铁芯强度低，压接过程中无铁芯线圈退火产生。
Definition: The winding core is seriously deformed and the winding shape is not round. Main reasons: insufficient tension, external pressure, low iron core strength, no iron core coil annealing during crimping.
7分层
7 Tiering
定义：由于层与端面层之间的不规则运动而导致带钢端面不平整。主要原因有钢坯不均匀、轧机放卷和卷取张力控制不当、压下量和套筒移动不均匀、校平辊调整不当、卷取过程中对中系统异常、辊系平整度差等。
Definition: The end surface of strip steel is uneven due to the irregular movement between layers and end layers. The main reasons are uneven billet, improper tension control of rolling mill unwinding and coiling, uneven reduction and sleeve movement, improper adjustment of leveling roll, abnormal centering system during coiling, poor flatness of roll system, etc.
以上是铝卷出现的常见的质量问题解析，提醒用户在购买时应观察铝卷是否出现上述问题，如果发现请立即联系相关人员更换。关注我们http://www.jndclyyxgs.com，了解更多相关事项！
The above is an analysis of the common quality problems of aluminum coils, reminding the user to observe whether the aluminum coils have the above problems when purchasing. If found, please contact the relevant personnel to replace them immediately. Follow us http://www.jndclyyxgs.com , learn more about it!