材质为QT400-15球墨铸铁钳座在拉拔力试验时出现裂纹。
The ductile iron pincer seat made by QT400-15 was found cracks in tensile testing.
通过试验得出拉拔力在一定范围内是随着拉拔速度的提高而降低的。
In a certain range. drawing force is reducing along with the increasing of drawing speed, which was reached by test.
通过试验得出拉拔力在一定范围内是随着拉拔速度的提高而降低的。
In a certain range. drawing force is reducing along with the increasing of drawing speed, which was reached by test.
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