1) shape defects
板形缺陷
1.
Tension-leveling can eliminate shape defects effectively, so as to increase the quality of strip.
连续拉弯矫直机能有效地消除带材的板形缺陷,提高带材质量。
2.
Tension-leveling line now is widely used in high quality aluminium rolling production, because it can eliminate shape defects such as wave and warp effectively.
拉弯矫直机组能有效地消除带材的波浪和翘曲等板形缺陷，在高精度铝板带材的生产中得到了广泛应用。
2) flatness defect
板形缺陷
1.
The basic principle of shape control and the expression regression and mathematical model of flatness defect for 1250mm HC mill of Wuhan Iron and Steel Company has been introduced in this paper.
介绍了武钢冷轧厂１２５０ｍｍＨＣ轧机板形控制基本原理及冷轧带钢板形缺陷的板形分量表达式的回归处理和数学模
2.
The flatness defect pattern recognition based on data mining technology was proposed.
介绍了建立带钢板形缺陷模式识别的数据挖掘过程。
3) forming defects of sheet metals
板材成形缺陷
1.
A CAE software system independently developed and used for sheet metal stamping and its die′s design is introduced; and then by taking some of typically stamped specimen and their forming processes as examples, the forming defects of sheet metals, such as bulging, wrinkling, rupturing and spring back, are simulated using the present CAE software.
以典型冲压件及冲压过程为例，介绍自行研制的覆盖件成形与模具设计ＣＡＥ软件系统对板材成形缺陷，即鼓动、起皱、破裂与回弹的数值仿真结果及与实验结果的比较。
4) recognizing the defects of plate form
板形缺陷识别
1.
It is introduced that the method of wavelet analysis is applied to recognizing the defects of plate form in rolling process.
介绍了小波分析方法在冷轧板形缺陷识别中的应用。
5) initial imperfect plate
缺陷板
补充资料：板形缺陷
板形缺陷
shape defect of strip
banxing quexian板形缺陷(shape defeet of strip)带钢各横截面的中性线不在同一水平面内而出现的板形不平直的缺陷。常见的板形缺陷有:边浪，中浪，1/4浪、横向波浪和上凸下凹等。(见图) 边浪带钢边部厚度减薄量大于中部，从而引起边部的延伸量大于中部的现象。边浪又有单边浪、双边浪和不对称双边浪3种。产生边浪的主要原因是总轧制力过高;正弯辊力小，负弯辊力大(见弯辊技术);原始凸度和热凸度(见棍型控制)小。边浪可以由弯辊和轧辊轴移(见移辐技术)来消除。单边浪由调整压下解决。 中浪带钢中部的厚度减薄量大于边部，从而引起中部的延伸量大于边部的现象。产生中浪的主要原因是总轧制力太小;正弯辊力大，负弯辊力小;原始凸度和热凸度大。中浪可以由弯辊和轧辊轴移来消除。枷 带钢板形缺陷 1/4浪波浪出现在中部和边部之间的板宽1/4处的波浪，又称二肋浪或复合波。这主要由于连续较长时间轧制后，轧辊中部与边部产生较大温差，同时轧辊中部又受到大水量冷却，因而在与板宽1/4处相对应的地方辊温偏高，产生局部热膨胀。1/4浪用弯辊和轧辊轴移很难解决，要靠加强对该处的局部冷却才能消除。 横向波浪由于带钢来料的平直度不良，加上过高的单位轧制力和错误的弯辊设置，出现一个微小的材料横向流动，使带钢出现横向波浪或对角线波浪。减小轧制压力可以阻止横向波浪继续出现，但是，出现横向波浪以后，却很难消除。生产中应避免出现横向波浪。上凸下凹指板带的局部不平度或称瓢曲，只在带钢宽度的几厘米处可以看出隆起的肿块。它是由于局部地区冷却喷头损坏，轧辊冷却不足而局部升温，或轧辊局部磨损造成在带钢宽度上的局部压力过高而产生的。主要对策是立刻将卷取张力降低30%，同时降低轧制速度。这种缺陷一般很难完全消除。 (汪祥能)
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参考词条