1、 Press in non color coated plate and color steel plate

定义：非彩涂板、彩钢板杂物压入板、带表面。表面呈明显的点状或长条状黄黑色缺陷。山东彩钢板生产厂家http://www.fulisteel.com/ 彩涂钢板

Definition: non color coated plate, color steel plate, sundries pressed into plate and strip surface. The surface shows obvious spot or strip yellow black defects. Shandong color steel plate manufacturer http://www.fulisteel.com/ Color coated steel plate

主要原因：轧制工序设备条件不清净;轧制工艺润滑剂不清静;工艺润滑剂喷射压力不足;板坯表面有擦划伤。

Main reasons: the equipment conditions of rolling process are not clean; Rolling process lubricant is not quiet; Insufficient injection pressure of process lubricant; The slab surface is scratched.

二、擦伤；定义：由于物体间棱与面，或面与面接触后发生相对滑动或错动而在板、带表面造成的成束(或组)分布的伤痕。

2、 Abrasions; Definition: the scars distributed in bundles (or groups) on the surface of plates and strips due to the relative sliding or dislocation of edges and surfaces between objects or after surface to surface contact.

主要原因：板、带在加工生产过程中与导路、设备接触时，产生相对摩擦而造成擦伤;冷轧卷端面不齐正，在立式炉退火翻转时产生错动、层与层之间产生擦伤;冷轧时张力不当，开卷时产生层间错动而产生擦伤;精整验收或包装操作不当产生板间滑动而造成擦伤。

Main reasons: when the plate and belt are in contact with the guide and equipment during processing and production, they produce relative friction and cause scratch; The end face of cold rolled coil is not aligned, resulting in dislocation and scratch between layers during annealing turnover in vertical furnace; Improper tension during cold rolling and scratch caused by interlaminar dislocation during uncoiling; Scratches caused by sliding between plates due to improper finishing acceptance or packaging operation.

三、碰伤；定义： 铝板、铝卷与其他物体碰撞后在板、带表面或端面产生的划痕，且大多数在凹陷边际有被挤出的彩涂板、彩钢板存在。

3、 Bruise; Definition: scratches on the surface or end face of aluminum plate and strip after collision between aluminum plate and coil and other objects, and most of them have extruded color coated plate and color steel plate at the edge of the depression.

主要原因：板、卷在搬运或存放过程中与其他物体碰撞产生;板、卷在退火料架或底盘上有其他突出物顶撞而产生。

Main causes: the plate and coil collide with other objects during handling or storage; The plate and coil are caused by the collision of other protrusions on the annealing rack or chassis.

四、翘边；定义：经轧制或剪切后，带材边部翘起。

4、 Edge warping; Definition: after rolling or shearing, the edge of the strip is warped.

主要原因：轧制时压下量过大;轧制时润滑油分布不均匀;剪切时剪刃调整不当。

Main reasons: excessive reduction during rolling; Uneven distribution of lubricating oil during rolling; Improper adjustment of cutting edge during cutting.

五、折伤；定义：板材弯折后产生的变形折痕。

5、 Fracture; Definition: deformation crease generated after plate bending.

主要原因：多辊矫直机上料时送料不正;薄板在翻片或搬运中受力不平衡;上垛片时受力不平衡。

Main reasons: incorrect feeding during feeding of multi roll straightener; The stress of thin plate is unbalanced during turning or handling; When stacking the sheets, the force is unbalanced.

六、塌卷；定义：卷芯严重变形，卷形不圆。

6、 Collapse roll; Definition: the roll core is severely deformed and the roll shape is not round.

主要原因：卷曲过程中张力不当;外力压迫;卷芯强度低;无卷芯卷材经退火产生。

Main reasons: improper tension during crimping; External pressure; Low core strength; Coreless coil is produced by annealing.

七、错层；定义：带材端面层与层之间不规则错动，造成端面不平整。

7、 Staggered layer; Definition: irregular dislocation between layers of strip end face, resulting in uneven end face.

主要原因：坯料不平整;轧机开卷、卷取张力控制不当;压下量不均，套筒串动;压平辊调整不当;卷取过程中，对中系统异常;辊系平行度不好。

Main reasons: the blank is not flat; Improper control of uncoiling and coiling tension of rolling mill; The reduction is uneven and the sleeve moves in series; Improper adjustment of flattening roller; During coiling, the centering system is abnormal; Poor parallelism of roll system.

八、塔形；定义：带卷层与层之间向一侧窜动形成塔状偏移。

8、 Tower shape; Definition: the coil layer moves to one side to form a tower offset.

主要原因：来料板形不好，张力控制不当;卷取对中调节控制系统异常;卷取时带头粘结不牢。

Main reasons: poor shape of incoming materials and improper tension control; Abnormal coiling centering adjustment control system; The head is not firmly bonded during coiling.

九、松卷；定义：卷取、开卷时层与层之间产生松动，严重时波及整卷。

9、 Loose roll; Definition: looseness occurs between layers during coiling and uncoiling, which will affect the whole coil in serious cases.

主要原因：卷取过程中张力不均或过小;开卷时压辊压力太小;钢带或卡子不牢固，吊运时产生。

Main causes: uneven or too small tension during coiling; The pressure of the pressing roller is too small when uncoiling; The steel belt or clip is not firm, which is caused during hoisting.

十、燕窝；定义：带卷端面上产生局部“V”型缺陷。这种缺陷在带卷卷取过程中或卸卷后产生，有些待放置一段时间后才产生。

10、 Bird's nest; Definition: local "V" type defects occur on the end face of the coil. This kind of defect occurs during the coiling process or after unloading, and some of them will not occur until they are placed for a period of time.

主要原因：带卷卷取过程中前后张力使用不当;胀圈不圆或卷取时打底不圆，卸卷后由于应力不均匀分布而产生;卷芯质量差。

Main reasons: improper use of front and rear tension in the process of belt coiling; The expansion ring is not round or the backing is not round during coiling, which is caused by the uneven distribution of stress after coiling; Poor core quality.

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