桶(tong)模(mo)具(ju)技術要點(dian)(dian)分(fen)析(xi)(xi) A.關于(yu)桶(tong)模(mo)具(ju)偏心引起(qi)(qi)桶(tong)壁厚不(bu)均勻的(de)(de)解析(xi)(xi)如(ru)(ru)下：1. 假如(ru)(ru)冷卻水(shui)在(zai)(zai)桶(tong)模(mo)具(ju)的(de)(de)型芯(xin)型腔(qiang)各區域(yu)處流(liu)動(dong)(dong)不(bu)均勻，將會引起(qi)(qi)溶融(rong)塑料(liao)的(de)(de)流(liu)動(dong)(dong)差異，越(yue)熱區域(yu)流(liu)動(dong)(dong)性會更(geng)(geng)大(da)(da)，越(yue)冷區域(yu)流(liu)動(dong)(dong)性會更(geng)(geng)小，從(cong)而使得熱一(yi)點(dian)(dian)區域(yu)的(de)(de)桶(tong)壁厚厚一(yi)點(dian)(dian)。正常情況下，不(bu)同溫度至少(shao)會造成0.05mm的(de)(de)公(gong)差。 2. 一(yi)般來說，桶(tong)模(mo)具(ju)的(de)(de)零(ling)度四(si)別(bie)克鎖高(gao)度應為塑料(liao)桶(tong)高(gao)度的(de)(de)20%-30%，比(bi)如(ru)(ru)小一(yi)點(dian)(dian)的(de)(de)桶(tong)應為20%，大(da)(da)一(yi)點(dian)(dian)的(de)(de)桶(tong)模(mo)具(ju)應在(zai)(zai)30%高(gao)度左右。3. 當我們(men)做(zuo)桶(tong)模(mo)具(ju)的(de)(de)型芯(xin)型腔(qiang)加工(gong)時(shi)，要特(te)別(bie)注意選擇加工(gong)設備
