tracing board

In the track- following servo system of an optical disk drive, the eccentricity of optical disk will cause periodic disturbances on TE(tracking errors) signals.

在DVD循轨伺服控制系统中,碟片的偏心会对循轨误差信号TE(tracking errors)产生周期性的扰动。

The Article aims at providing resolution for crack which is caused by carbon compound segregation,grain-size overlevel and high temperature of quenching through analyzing the crack of CrWMn guide-way plate and inspecting carbon compound state,grain-size after forging,and martensite.

本文分析了CrWMn导轨板裂纹,分别检验并分析了碳化物形态、锻造后的晶粒度、马氏体形态,确定开裂的原因为碳化物偏析、晶粒度超标、淬火温度偏高,最后提出了改进措施。