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B95пчT2合金半成品主要是用作受拉或受压时失去稳定性的静态强度条件下工作的受力结构的构件。对于在结构受压区工作的构件来说,静态强度,即屈服极限是决定性因素。到目前为止,这种构件优先采用B95пч12合金挤压半成品制作,因为挤压材的屈服极限比轧制材的屈服极限高(表1)。由于在冶金生产中加工挤压半成品需要的劳动量大,所以近年来发现有用轧制板材代替挤压壁板的趋势。这种趋势的发展受到抑制的一个主要原因是轧制的板材性能差一些。这是由于轧板的厚度大,形状系数大,淬火时中心部位的实际冷却速度比挤压壁板的冷却速度慢。
B95пчT2 alloy semifinished products are mainly used as a member of a stressed structure that operates under static strength conditions that lose stability during tension or compression. For components operating in the zone of structural compression, the static strength, ie, the yield limit is the decisive factor. To date, this component has been preferentially made of B95пч12 alloy extruded semifinished products because the yield point of the extruded material is higher than the yield point of the rolled material (Table 1). In recent years, there has been a tendency to find a useful rolled sheet instead of extruded sheet because of the large amount of labor required to process the extruded semifinished product in metallurgical production. One of the main reasons this trend has been dampened is the poor performance of rolled sheets. This is due to the thickness of the rolling plate, the shape factor, quenching the central part of the actual cooling rate slower than the extrusion wall cooling.