密煉機一段(duan)混(hun)(hun)煉(lian)(lian)(lian)法是通過一次性(xing)將配(pei)(pei)合劑(ji)(ji)(ji)加(jia)入(ru)(ru)生(sheng)膠(jiao)的(de)混(hun)(hun)煉(lian)(lian)(lian)方法，一般用于焦(jiao)燒性(xing)能良好(hao)、不含活性(xing)配(pei)(pei)合劑(ji)(ji)(ji)的(de)生(sheng)膠(jiao)，混(hun)(hun)煉(lian)(lian)(lian)時(shi)膠(jiao)料的(de)溫度不能上升(sheng)太快，所以(yi)密煉(lian)(lian)(lian)機(ji)需(xu)要(yao)進行一段(duan)低速(su)混(hun)(hun)煉(lian)(lian)(lian)，需(xu)要(yao)依(yi)次往塑煉(lian)(lian)(lian)好(hao)的(de)生(sheng)加(jia)中加(jia)入(ru)(ru)配(pei)(pei)合劑(ji)(ji)(ji)（硫化(hua)劑(ji)(ji)(ji)、操作油、促進劑(ji)(ji)(ji)也(ye)(ye)要(yao)加(jia)入(ru)(ru)），膠(jiao)料的(de)混(hun)(hun)煉(lian)(lian)(lian)時(shi)間需(xu)要(yao)根據(ju)膠(jiao)料的(de)特性(xing)與密煉(lian)(lian)(lian)機(ji)轉子的(de)轉速(su)確定(ding)，密煉(lian)(lian)(lian)機(ji)混(hun)(hun)煉(lian)(lian)(lian)結束(shu)前60s內(nei)才可(ke)加(jia)入(ru)(ru)硫化(hua)劑(ji)(ji)(ji)和促進劑(ji)(ji)(ji)，也(ye)(ye)可(ke)以(yi)在下(xia)一工藝中的(de)開煉(lian)(lian)(lian)機(ji)上加(jia)入(ru)(ru)，為防止(zhi)膠(jiao)料焦(jiao)燒混(hun)(hun)煉(lian)(lian)(lian)膠(jiao)的(de)溫度需(xu)要(yao)控制(zhi)在110℃以(yi)下(xia)，不同(tong)的(de)硫化(hua)體系需(xu)根據(ju)情況(kuang)調整。對于不易分散的(de)配(pei)(pei)合劑(ji)(ji)(ji)可(ke)以(yi)制(zhi)成(cheng)各種(zhong)母膠(jiao)顆(ke)粒方便更(geng)快速(su)的(de)混(hun)(hun)合。

密(mi)(mi)煉(lian)機(ji)(ji)(ji)混煉(lian)加料(liao)(liao)投入(ru)順序、混煉(lian)溫度(du)(du)、混煉(lian)時間需要(yao)根據(ju)工藝條件(jian)要(yao)求(qiu)控(kong)制，同(tong)時還(huan)有密(mi)(mi)煉(lian)機(ji)(ji)(ji)上(shang)頂(ding)栓壓(ya)力與(yu)(yu)混煉(lian)過程中(zhong)的位置需要(yao)注(zhu)(zhu)意。一段混煉(lian)法用(yong)于硫(liu)(liu)化速度(du)(du)相對較(jiao)慢的膠料(liao)(liao)，對于高(gao)填充、高(gao)粘度(du)(du)與(yu)(yu)高(gao)硬度(du)(du)的混煉(lian)膠料(liao)(liao)需要(yao)特別注(zhu)(zhu)意，可將膠料(liao)(liao)從密(mi)(mi)煉(lian)機(ji)(ji)(ji)排(pai)出后通過開煉(lian)機(ji)(ji)(ji)充分降溫再(zai)加入(ru)硫(liu)(liu)化劑(ji)與(yu)(yu)促進劑(ji)。

二段(duan)(duan)(duan)混(hun)(hun)煉(lian)(lian)(lian)(lian)和(he)一(yi)(yi)(yi)段(duan)(duan)(duan)混(hun)(hun)煉(lian)(lian)(lian)(lian)大致一(yi)(yi)(yi)樣，不同(tong)處為不含有硫化(hua)劑(ji)(ji)與活性(xing)大的(de)促(cu)進(jin)(jin)劑(ji)(ji)，密(mi)(mi)煉(lian)(lian)(lian)(lian)機(ji)(ji)首先制(zhi)(zhi)成(cheng)母膠(jiao)(jiao)(jiao)，然后下片冷卻停放一(yi)(yi)(yi)定時間(jian)，為了炭黑在(zai)橡(xiang)膠(jiao)(jiao)(jiao)中更好的(de)分散(san)，提高(gao)生產效率通(tong)常(chang)密(mi)(mi)煉(lian)(lian)(lian)(lian)機(ji)(ji)采用快速來制(zhi)(zhi)備(bei)母煉(lian)(lian)(lian)(lian)膠(jiao)(jiao)(jiao)，也(ye)可以將母煉(lian)(lian)(lian)(lian)膠(jiao)(jiao)(jiao)制(zhi)(zhi)備(bei)與塑煉(lian)(lian)(lian)(lian)過程一(yi)(yi)(yi)起進(jin)(jin)行，密(mi)(mi)煉(lian)(lian)(lian)(lian)機(ji)(ji)的(de)二段(duan)(duan)(duan)混(hun)(hun)煉(lian)(lian)(lian)(lian)是在(zai)一(yi)(yi)(yi)段(duan)(duan)(duan)混(hun)(hun)煉(lian)(lian)(lian)(lian)的(de)基(ji)礎上再加入硫化(hua)劑(ji)(ji)、促(cu)進(jin)(jin)劑(ji)(ji)等等剩余配合劑(ji)(ji)進(jin)(jin)行混(hun)(hun)煉(lian)(lian)(lian)(lian)，二段(duan)(duan)(duan)混(hun)(hun)煉(lian)(lian)(lian)(lian)不一(yi)(yi)(yi)定要(yao)在(zai)密(mi)(mi)煉(lian)(lian)(lian)(lian)上進(jin)(jin)行，開煉(lian)(lian)(lian)(lian)機(ji)(ji)上也(ye)可進(jin)(jin)行二段(duan)(duan)(duan)混(hun)(hun)煉(lian)(lian)(lian)(lian)。常(chang)見用密(mi)(mi)煉(lian)(lian)(lian)(lian)機(ji)(ji)慢速混(hun)(hun)煉(lian)(lian)(lian)(lian)，以便于在(zai)較低(di)的(de)溫度下加入硫化(hua)劑(ji)(ji)和(he)促(cu)進(jin)(jin)劑(ji)(ji)，提高(gao)生產效率，密(mi)(mi)煉(lian)(lian)(lian)(lian)機(ji)(ji)二段(duan)(duan)(duan)混(hun)(hun)煉(lian)(lian)(lian)(lian)2-4分鐘即(ji)可完成(cheng)。