雙層卷焊管定徑輥減壁區(qū)軋制壓力及芯棒軸向力的研究(續(xù))
ANALYSIS OF ROLLING PRESSURE IN WALL-THICKNESS REDUCTION ZONE OF SIZING-ROLL AND OF MANDREL AXIAL FORCE WITH RESPECT TO DOUBLE-COIL-WELDED TUBES（Ⅱ）
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摘要: 用解析法求出了錐-柱形芯棒定徑輥減壁區(qū)軋制壓力、總軋制力及芯棒軸向力的計(jì)算公式。將計(jì)算結(jié)果與腰鼓形芯棒相應(yīng)的結(jié)果進(jìn)行了對(duì)比,從而發(fā)現(xiàn)了錐-柱形芯棒的優(yōu)點(diǎn),提出了提高錐-柱形芯棒使用穩(wěn)定性的措施。Abstract: The calculation formulas are derived with analytical method for rolling pressure, total rolling force and mandrel axial force in wall thinning zone of sizing rolls and a conic-cylindrical mandrel. The calculation result is compared with that relate to the crowned mandrel, which results in the diseovety of the advantages of the conic-cylindrical mandrel and the measures proposed to steadly apply conic-cylindrical mandrel.
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