耐磨尼龍板注入成型務必考慮到的七個要素

注(zhu)塑(su)(su)(su)成(cheng)(cheng)型(xing)設置要考慮到收(shou)(shou)(shou)縮(suo)(suo)(suo)率(lv)、流(liu)(liu)通性(xing)(xing)(xing)(xing)(xing)、晶(jing)形、熱敏性(xing)(xing)(xing)(xing)(xing)尼(ni)(ni)(ni)龍(long)板(ban)(ban)(ban)(ban)(ban)及(ji)(ji)易水(shui)解(jie)反應(ying)(ying)耐(nai)磨(mo)(mo)(mo)尼(ni)(ni)(ni)龍(long)板(ban)(ban)(ban)(ban)(ban)、地應(ying)(ying)力(li)(li)(li)裂開及(ji)(ji)溶(rong)體裂開、熱特性(xing)(xing)(xing)(xing)(xing)及(ji)(ji)制(zhi)(zhi)冷(leng)速率(lv)、吸水(shui)性(xing)(xing)(xing)(xing)(xing)等(deng)七個要素。01收(shou)(shou)(shou)縮(suo)(suo)(suo)率(lv)（1）耐(nai)磨(mo)(mo)(mo)尼(ni)(ni)(ni)龍(long)板(ban)(ban)(ban)(ban)(ban)種(zhong)類熱固(gu)(gu)(gu)性(xing)(xing)(xing)(xing)(xing)尼(ni)(ni)(ni)龍(long)板(ban)(ban)(ban)(ban)(ban)成(cheng)(cheng)型(xing)全過程中因(yin)(yin)(yin)(yin)為(wei)存(cun)有(you)結晶(jing)體化(hua)產(chan)(chan)生(sheng)的(de)(de)(de)容積(ji)(ji)轉(zhuan)變(bian) 、熱應(ying)(ying)力(li)(li)(li)強、鎖(suo)定在(zai)(zai)塑(su)(su)(su)件(jian)內的(de)(de)(de)內應(ying)(ying)力(li)(li)(li)大(da)(da)(da)、分子結構趨(qu)向(xiang)(xiang)性(xing)(xing)(xing)(xing)(xing)好(hao)等(deng)要素，因(yin)(yin)(yin)(yin)而(er)與熱固(gu)(gu)(gu)性(xing)(xing)(xing)(xing)(xing)塑(su)(su)(su)料(liao)(liao)(liao)尼(ni)(ni)(ni)龍(long)板(ban)(ban)(ban)(ban)(ban)對(dui)比(bi)其收(shou)(shou)(shou)縮(suo)(suo)(suo)率(lv)很大(da)(da)(da)、收(shou)(shou)(shou)縮(suo)(suo)(suo)率(lv)范(fan)疇寬(kuan)、方(fang)(fang)(fang)(fang)向(xiang)(xiang)性(xing)(xing)(xing)(xing)(xing)顯著，此外(wai)(wai)成(cheng)(cheng)型(xing)后(hou)(hou)的(de)(de)(de)收(shou)(shou)(shou)縮(suo)(suo)(suo)、淬(cui)火或轉(zhuan)輪除(chu)濕解(jie)決后(hou)(hou)的(de)(de)(de)收(shou)(shou)(shou)縮(suo)(suo)(suo)率(lv)一般(ban)也都比(bi)熱固(gu)(gu)(gu)性(xing)(xing)(xing)(xing)(xing)塑(su)(su)(su)料(liao)(liao)(liao)耐(nai)磨(mo)(mo)(mo)尼(ni)(ni)(ni)龍(long)板(ban)(ban)(ban)(ban)(ban)大(da)(da)(da)。（2）塑(su)(su)(su)件(jian)特點成(cheng)(cheng)型(xing)時(shi)(shi)熔(rong)化(hua)料(liao)(liao)(liao)與凹模(mo)(mo)表層(ceng)(ceng)觸碰表層(ceng)(ceng)馬上制(zhi)(zhi)冷(leng)產(chan)(chan)生(sheng)密(mi)(mi)(mi)度(du)低的(de)(de)(de)固(gu)(gu)(gu)體機殼。因(yin)(yin)(yin)(yin)為(wei)耐(nai)磨(mo)(mo)(mo)尼(ni)(ni)(ni)龍(long)板(ban)(ban)(ban)(ban)(ban)的(de)(de)(de)傳熱性(xing)(xing)(xing)(xing)(xing)差，使塑(su)(su)(su)件(jian)里層(ceng)(ceng)遲(chi)緩(huan)制(zhi)(zhi)冷(leng)而(er)產(chan)(chan)生(sheng)收(shou)(shou)(shou)縮(suo)(suo)(suo)大(da)(da)(da)的(de)(de)(de)密(mi)(mi)(mi)度(du)高的(de)(de)(de)固(gu)(gu)(gu)體層(ceng)(ceng)。因(yin)(yin)(yin)(yin)此 壁(bi)厚(hou)、制(zhi)(zhi)冷(leng)慢、密(mi)(mi)(mi)度(du)高的(de)(de)(de)層(ceng)(ceng)厚(hou)的(de)(de)(de)則(ze)(ze)收(shou)(shou)(shou)縮(suo)(suo)(suo)大(da)(da)(da)。此外(wai)(wai)，有(you)沒(mei)有(you)鑲(xiang)件(jian)及(ji)(ji)鑲(xiang)件(jian)合理布(bu)(bu)局、總數都立即危(wei)害(hai)料(liao)(liao)(liao)流(liu)(liu)方(fang)(fang)(fang)(fang)位(wei)，相(xiang)(xiang)對(dui)密(mi)(mi)(mi)度(du)遍(bian)布(bu)(bu)及(ji)(ji)收(shou)(shou)(shou)縮(suo)(suo)(suo)摩擦阻力(li)(li)(li)尺(chi)寸(cun)(cun)等(deng)，因(yin)(yin)(yin)(yin)此 塑(su)(su)(su)件(jian)的(de)(de)(de)特點對(dui)收(shou)(shou)(shou)縮(suo)(suo)(suo)尺(chi)寸(cun)(cun)、方(fang)(fang)(fang)(fang)向(xiang)(xiang)性(xing)(xing)(xing)(xing)(xing)危(wei)害(hai)很大(da)(da)(da)。（3） 入(ru)(ru)料(liao)(liao)(liao)口(kou)(kou)方(fang)(fang)(fang)(fang)式(shi)、規格(ge)(ge)(ge)、遍(bian)布(bu)(bu)這種(zhong)要素立即危(wei)害(hai)料(liao)(liao)(liao)流(liu)(liu)方(fang)(fang)(fang)(fang)位(wei)、相(xiang)(xiang)對(dui)密(mi)(mi)(mi)度(du)遍(bian)布(bu)(bu)、保壓(ya)金(jin)屬型(xing)鑄功效及(ji)(ji)成(cheng)(cheng)型(xing)時(shi)(shi)間。立即入(ru)(ru)料(liao)(liao)(liao)口(kou)(kou)、入(ru)(ru)料(liao)(liao)(liao)口(kou)(kou)橫截面大(da)(da)(da)（特別是在(zai)(zai)橫截面偏厚(hou)的(de)(de)(de)）則(ze)(ze)收(shou)(shou)(shou)縮(suo)(suo)(suo)小(xiao)(xiao)(xiao)但方(fang)(fang)(fang)(fang)向(xiang)(xiang)性(xing)(xing)(xing)(xing)(xing)大(da)(da)(da)，入(ru)(ru)料(liao)(liao)(liao)口(kou)(kou)寬(kuan)及(ji)(ji)長(chang)短(duan)短(duan)的(de)(de)(de)則(ze)(ze)方(fang)(fang)(fang)(fang)向(xiang)(xiang)性(xing)(xing)(xing)(xing)(xing)小(xiao)(xiao)(xiao)。距(ju)入(ru)(ru)料(liao)(liao)(liao)口(kou)(kou)近(jin)的(de)(de)(de)或與料(liao)(liao)(liao)流(liu)(liu)方(fang)(fang)(fang)(fang)位(wei)平行面的(de)(de)(de)則(ze)(ze)收(shou)(shou)(shou)縮(suo)(suo)(suo)大(da)(da)(da)。（4）成(cheng)(cheng)型(xing)標準模(mo)(mo)貝溫度(du)高，熔(rong)化(hua)料(liao)(liao)(liao)制(zhi)(zhi)冷(leng)慢、相(xiang)(xiang)對(dui)密(mi)(mi)(mi)度(du)高、收(shou)(shou)(shou)縮(suo)(suo)(suo)大(da)(da)(da)，特別是在(zai)(zai)對(dui)結晶(jing)體料(liao)(liao)(liao)則(ze)(ze)因(yin)(yin)(yin)(yin)晶(jing)粒大(da)(da)(da)小(xiao)(xiao)(xiao)高，容積(ji)(ji)轉(zhuan)變(bian) 大(da)(da)(da)，故收(shou)(shou)(shou)縮(suo)(suo)(suo)更高。模(mo)(mo)溫遍(bian)布(bu)(bu)與塑(su)(su)(su)件(jian)內外(wai)(wai)制(zhi)(zhi)冷(leng)及(ji)(ji)相(xiang)(xiang)對(dui)密(mi)(mi)(mi)度(du)勻稱性(xing)(xing)(xing)(xing)(xing)也相(xiang)(xiang)關，立即危(wei)害(hai)到各(ge)一部分收(shou)(shou)(shou)縮(suo)(suo)(suo)量尺(chi)寸(cun)(cun)及(ji)(ji)方(fang)(fang)(fang)(fang)向(xiang)(xiang)性(xing)(xing)(xing)(xing)(xing)。此外(wai)(wai)，維持工(gong)作(zuo)(zuo)(zuo)壓(ya)力(li)(li)(li)及(ji)(ji)時(shi)(shi)間對(dui)收(shou)(shou)(shou)縮(suo)(suo)(suo)也危(wei)害(hai)很大(da)(da)(da)，壓(ya)力(li)(li)(li)太大(da)(da)(da)、時(shi)(shi)間長(chang)的(de)(de)(de)則(ze)(ze)收(shou)(shou)(shou)縮(suo)(suo)(suo)小(xiao)(xiao)(xiao)但方(fang)(fang)(fang)(fang)向(xiang)(xiang)性(xing)(xing)(xing)(xing)(xing)大(da)(da)(da)。注(zhu)塑(su)(su)(su)加(jia)工(gong)工(gong)作(zuo)(zuo)(zuo)壓(ya)力(li)(li)(li)高，熔(rong)化(hua)料(liao)(liao)(liao)黏度(du)差小(xiao)(xiao)(xiao)，固(gu)(gu)(gu)層(ceng)(ceng)剪應(ying)(ying)力(li)(li)(li)小(xiao)(xiao)(xiao)，出模(mo)(mo)后(hou)(hou)延(yan)展(zhan)性(xing)(xing)(xing)(xing)(xing)回跳大(da)(da)(da)，故收(shou)(shou)(shou)縮(suo)(suo)(suo)也可(ke)(ke)(ke)適當的(de)(de)(de)減少(shao)，料(liao)(liao)(liao)溫高、收(shou)(shou)(shou)縮(suo)(suo)(suo)大(da)(da)(da)，但方(fang)(fang)(fang)(fang)向(xiang)(xiang)性(xing)(xing)(xing)(xing)(xing)小(xiao)(xiao)(xiao)。因(yin)(yin)(yin)(yin)而(er)在(zai)(zai)成(cheng)(cheng)型(xing)時(shi)(shi)調節(jie)模(mo)(mo)溫、工(gong)作(zuo)(zuo)(zuo)壓(ya)力(li)(li)(li)、注(zhu)塑(su)(su)(su)加(jia)工(gong)速率(lv)及(ji)(ji)制(zhi)(zhi)冷(leng)時(shi)(shi)間等(deng)諸要素也可(ke)(ke)(ke)適度(du)更改塑(su)(su)(su)件(jian)收(shou)(shou)(shou)縮(suo)(suo)(suo)狀(zhuang)況(kuang)。沖壓(ya)模(mo)(mo)具(ju)時(shi)(shi)依(yi)據各(ge)種(zhong)各(ge)樣耐(nai)磨(mo)(mo)(mo)尼(ni)(ni)(ni)龍(long)板(ban)(ban)(ban)(ban)(ban)的(de)(de)(de)收(shou)(shou)(shou)縮(suo)(suo)(suo)范(fan)疇，塑(su)(su)(su)件(jian)壁(bi)厚(hou)、樣子，入(ru)(ru)料(liao)(liao)(liao)口(kou)(kou)方(fang)(fang)(fang)(fang)式(shi)規格(ge)(ge)(ge)及(ji)(ji)遍(bian)布(bu)(bu)狀(zhuang)況(kuang)，按工(gong)作(zuo)(zuo)(zuo)經驗明(ming)確塑(su)(su)(su)件(jian)各(ge)位(wei)置的(de)(de)(de)收(shou)(shou)(shou)縮(suo)(suo)(suo)率(lv)，再說測(ce)算(suan)凹模(mo)(mo)規格(ge)(ge)(ge)。對(dui)高精密(mi)(mi)(mi)塑(su)(su)(su)件(jian)及(ji)(ji)無法把握收(shou)(shou)(shou)縮(suo)(suo)(suo)率(lv)時(shi)(shi)，一般(ban)宜用以下(xia)方(fang)(fang)(fang)(fang)式(shi)開展(zhan)調節(jie)：①對(dui)塑(su)(su)(su)件(jian)直徑取較小(xiao)(xiao)(xiao)收(shou)(shou)(shou)縮(suo)(suo)(suo)率(lv)，內徑取很大(da)(da)(da)收(shou)(shou)(shou)縮(suo)(suo)(suo)率(lv)，以留出試件(jian)后(hou)(hou)調整(zheng)的(de)(de)(de)空間；②試件(jian)明(ming)確澆筑 系統軟件(jian)方(fang)(fang)(fang)(fang)式(shi)、規格(ge)(ge)(ge)及(ji)(ji)成(cheng)(cheng)型(xing)標準；③要后(hou)(hou)處理工(gong)藝的(de)(de)(de)塑(su)(su)(su)件(jian)經后(hou)(hou)處理工(gong)藝明(ming)確規格(ge)(ge)(ge)轉(zhuan)變(bian) 狀(zhuang)況(kuang)（測(ce)量時(shi)(shi)務必在(zai)(zai)出模(mo)(mo)后(hou)(hou)24小(xiao)(xiao)(xiao)時(shi)(shi)之后(hou)(hou)）；④按具(ju)體收(shou)(shou)(shou)縮(suo)(suo)(suo)狀(zhuang)況(kuang)調整(zheng)模(mo)(mo)貝。02流(liu)(liu)通性(xing)(xing)(xing)(xing)(xing)熱固(gu)(gu)(gu)性(xing)(xing)(xing)(xing)(xing)耐(nai)磨(mo)(mo)(mo)尼(ni)(ni)(ni)龍(long)板(ban)(ban)(ban)(ban)(ban)流(liu)(liu)通性(xing)(xing)(xing)(xing)(xing)尺(chi)寸(cun)(cun)，一般(ban)可(ke)(ke)(ke)從含量尺(chi)寸(cun)(cun)、熔(rong)指、阿基米(mi)德渦狀(zhuang)線流(liu)(liu)動(dong)性(xing)(xing)(xing)(xing)(xing)長(chang)短(duan)、主(zhu)要表現黏度(du)及(ji)(ji)流(liu)(liu)動(dong)比(bi)（步驟(zou)長(chang)短(duan)/塑(su)(su)(su)件(jian)壁(bi)厚(hou)）等(deng)一系列指數值(zhi)開展(zhan)剖析。