The machine damage brings the tensile strength and the elongation value of beryllium to decrease.
机加工损伤使铍的抗拉强度和延伸率均有较大降低。
The peak ageing strength and elongation value of the rolled composite were higher than those of the extruded composite.
复合材料轧制板材峰时效的强度和延伸率与挤压板材峰时效状态相比有一定程度的提高。
The paper mainly introduces raw material quality control, calculation of burden, stretch-draw force and elongation value, construction technology of non-bonding prestressed steel strand.
主要介绍无粘结预应力钢绞线的原材质量控制、配料、张拉力值、伸长值的计算及施工工艺。
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