论文部分内容阅读
一钢内纤维方向对机械性能的影响辗轧的钢板,抽拉的钢桿、钢条、钢线,和鍜制的钢件如曲轴、齿轮、铣刀、甚至于车刀等,如沿其从长的方向截取断面,磨光后再用适当的药剂浸染之,就可在截面上看到纤维状的条纹。这种纤维的方向,和钢的机械性能有密切关系。这种关系可由下面几个试验的结果示明: 的数字,是用查贝(Charpy)式V字形刻口的标准尺寸的撞击试验桿,在-40F时试验的结果。由这表可见钢板的极性(以撞击试验能量吸收的呎磅数代表),横向的约只有从向的一半。
A steel fiber direction on the mechanical properties of rolling steel plate, drawing the steel rod, steel, steel, and cast steel such as crankshaft, gear, milling cutter, and even turning tools, such as along the From the long direction of the interception of the cross-section, polished and then impregnated with the appropriate agent, you can see in the cross-section of the fibrous stripes. The direction of this fiber, and the mechanical properties of steel are closely related. This relationship can be demonstrated by the results of the following tests: The figures are the results of a test at -40 F using a standard-size impact test rod of Charpy V-shaped notch. From this table we can see the polarity of the steel plate (represented by the pounds of pounds absorbed by the impact test energy), only about half way across.