国产黄色在线观看

注塑(su)件(jian)注塑(su)加(jia)(jia)工(gong)(gong)(gong)(gong)流程(cheng)是(shi)一(yi)種(zhong)復雜(za)(za)的(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)藝，可以用(yong)來制(zhi)造各種(zhong)復雜(za)(za)的(de)(de)結構和形(xing)(xing)狀的(de)(de)零(ling)件(jian)。它是(shi)一(yi)種(zhong)熱塑(su)性(xing)塑(su)料加(jia)(jia)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)藝，通過將(jiang)熔(rong)融的(de)(de)塑(su)料液體壓(ya)入模具中，以固(gu)(gu)定形(xing)(xing)狀冷卻固(gu)(gu)化成型，以達到制(zhi)造零(ling)件(jian)的(de)(de)目(mu)的(de)(de)。

注(zhu)塑(su)(su)件注(zhu)塑(su)(su)加工(gong)流程主要包(bao)括料斗(dou)裝料、模(mo)具加熱、塑(su)(su)料熔(rong)融(rong)、注(zhu)射成型、模(mo)具冷(leng)卻、產品(pin)取(qu)出(chu)等步驟。

注塑(su)件注塑(su)加工成型(xing)的成型(xing)周(zhou)期由(you)合(he)模時(shi)(shi)(shi)間(jian)(jian)(jian)、充填時(shi)(shi)(shi)間(jian)(jian)(jian)、保壓(ya)時(shi)(shi)(shi)間(jian)(jian)(jian)、冷(leng)卻時(shi)(shi)(shi)間(jian)(jian)(jian)及脫模時(shi)(shi)(shi)間(jian)(jian)(jian)組成。其(qi)中(zhong)以冷(leng)卻時(shi)(shi)(shi)間(jian)(jian)(jian)所(suo)(suo)占(zhan)比重(zhong)比較大，大約為70%——80%。因(yin)(yin)此冷(leng)卻時(shi)(shi)(shi)間(jian)(jian)(jian)將直接影(ying)響塑(su)料制(zhi)品成型(xing)周(zhou)期長短及產量大小。脫模階段塑(su)料制(zhi)品溫(wen)度(du)應(ying)冷(leng)卻至(zhi)低于(yu)塑(su)料制(zhi)品的熱變(bian)形溫(wen)度(du)，以防止塑(su)料制(zhi)品因(yin)(yin)殘余應(ying)力(li)導致的松(song)弛(chi)現象或(huo)脫模外(wai)力(li)所(suo)(suo)造成的翹(qiao)曲(qu)及變(bian)形。