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[拉丝工序] 拉丝机安全滑动系数计算
P:2010-11-20 14:05:13
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拉丝机安全滑动系数计算
<DIV class=xxxxAd><SCRIPT type=text/javascript></SCRIPT><SCRIPT src="http://pagead2.googlesyndication--.com/pagead/show_ads.js" type=text/javascript></SCRIPT><SCRIPT src="http://pagead2.googlesyndication--.com/pagead/js/r20101110/r20101117/show_ads_impl.js"></SCRIPT><SCRIPT>google_protectAndRun("ads_core.google_render_ad", google_handleError, google_render_ad);</SCRIPT>LH-280/17拉丝机的增速比是: </DIV>
<DIV class=xxxxAd><SCRIPT type=text/javascript></SCRIPT><SCRIPT src="http://pagead2.googlesyndication--.com/pagead/show_ads.js" type=text/javascript></SCRIPT><SCRIPT src="http://pagead2.googlesyndication--.com/pagead/js/r20101110/r20101117/show_ads_impl.js"></SCRIPT><SCRIPT>google_protectAndRun("ads_core.google_render_ad", google_handleError, google_render_ad);</SCRIPT>LH-280/17拉丝机的增速比是:
1.20:1,(最后一道:1.15:1),即:νn=1.2
A.滑动系数:
1.τ3-τn取1.005
2.安全滑动系数τ2=(1.2/1.15)*1.005=1.04
请问各位高手为什么τ2=(1.2/1.15)*1.005=1.04
enamel paraffin wire - 蜡克线 (0) 投诉
5
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