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class="allxz"> <table width="90%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="center"><h1 style="font-size:16px;"><strong>淺析影響金屬流出?？姿俣鹊囊蛩?/strong></h1> 點擊：<span style="color:#F00">966</span> 日期：[ 2020-06-10 15:39:31 ] <hr color="#dddddd" size="1" /></td> </tr> <tr> <td style="line-height:35px;"> <p>淺析影響金屬流出?？姿俣鹊囊蛩?nbsp;</p><p><br/></p><p>① 金屬流動時所愛摩擦阻力的大小，其中包括分流孔的形狀、大小、數目和深度；焊合腔的形狀和深度；舌頭和?？坠ぷ鲙У拈L度以及?？着c金屬直接接觸部分的表面狀態和潤滑情況等。</p><p><br/></p><p>② 供給產品斷面各部分的金屬分配是否合理，即產品各部分斷面積之比與各相應部分金屬供應量之比是否相等，其中包括分流孔的大小、形狀、數量與分布；多孔?？椎牟贾?，型材在模子平面上的布置；型材各部分離擠壓筒中心和擠壓筒邊緣的遠近；各?？组g的距離等。</p><p> </p><p> 當型材某一部分可供給金屬量愈多，所受的摩擦阻力愈小，則這部分型材流出?？椎乃俣染陀?。 </p><p> 金屬供給量的分配比例主要是由于?？自O計者確定的，當模具制造完后，金屬的分配比例就固定下來了(對于平面分流模、舌型模和帶有導流模的平面模，其金屬供給量可通過改變分流孔、焊合室、導流孔的形狀和大小來調劑)，因此，設計時由于?？撞贾貌缓侠碓斐傻母鞑糠至魉俨痪?，會給修模帶來很大的困難。</p><p> 流動金屬與模具之間的摩擦力由兩部分組成：一是金屬與擠壓筒壁、模具端面間的摩擦，二是金屬與?？坠ぷ鲙П砻骈g的摩擦。</p><p><br/></p> </td> </tr> </table> <table width="90%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td 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