以砂型配重鐵為(wei)例,鑄(zhu)型(xing)準備(bei)包括造(zao)(zao)(zao)型(xing)材(cai)(cai)料準備(bei)和造(zao)(zao)(zao)型(xing)造(zao)(zao)(zao)芯(xin)兩大項(xiang)工作。砂(sha)(sha)(sha)型(xing)配重鐵(tie)(tie)中(zhong)用來(lai)造(zao)(zao)(zao)型(xing)造(zao)(zao)(zao)芯(xin)的(de)原(yuan)材(cai)(cai)料,如(ru)配重鐵(tie)(tie)砂(sha)(sha)(sha)、型(xing)砂(sha)(sha)(sha)粘(zhan)(zhan)結劑和其(qi)他輔(fu)(fu)料,以及由它(ta)們(men)配制(zhi)成的(de)型(xing)砂(sha)(sha)(sha)、芯(xin)砂(sha)(sha)(sha)、涂料等統稱(cheng)為(wei)造(zao)(zao)(zao)型(xing)材(cai)(cai)料造(zao)(zao)(zao)型(xing)材(cai)(cai)料準備(bei)的(de)任(ren)務(wu)是(shi)(shi)按照鑄(zhu)件(jian)的(de)要求、金屬的(de)性質,選擇原(yuan)砂(sha)(sha)(sha)、粘(zhan)(zhan)結劑和輔(fu)(fu)料,然后(hou)按比例把它(ta)們(men)混(hun)(hun)合(he)成具有完(wan)美性能的(de)型(xing)砂(sha)(sha)(sha)和芯(xin)砂(sha)(sha)(sha)。常用的(de)混(hun)(hun)砂(sha)(sha)(sha)設(she)備(bei)有碾輪(lun)式(shi)(shi)混(hun)(hun)砂(sha)(sha)(sha)機、逆(ni)流(liu)式(shi)(shi)混(hun)(hun)砂(sha)(sha)(sha)機和葉片溝(gou)槽式(shi)(shi)混(hun)(hun)砂(sha)(sha)(sha)機。后(hou)者是(shi)(shi)為(wei)混(hun)(hun)合(he)化學自硬(ying)砂(sha)(sha)(sha)設(she)計的(de),連續混(hun)(hun)合(he),速(su)度快。 造(zao)(zao)(zao)型(xing)造(zao)(zao)(zao)芯(xin)是(shi)(shi)根據配重鐵(tie)(tie)工藝要求,在規劃好造(zao)(zao)(zao)型(xing)方法(fa),準備(bei)好造(zao)(zao)(zao)型(xing)材(cai)(cai)料的(de)基(ji)礎(chu)上進行的(de)。
鑄件的精度生產過程的經濟好處,主要取決于這道工序。在很多現代化(hua)的配重鐵車間里,造(zao)型(xing)(xing)(xing)造(zao)芯都實(shi)現了(le)機械(xie)化(hua)或(huo)自動化(hua)。常用的砂(sha)型(xing)(xing)(xing)造(zao)型(xing)(xing)(xing)造(zao)芯設備有高、中、低壓(ya)造(zao)型(xing)(xing)(xing)機、拋砂(sha)機、無箱射壓(ya)造(zao)型(xing)(xing)(xing)機、射芯機、冷和熱芯盒機等(deng)。
不同的叉車配重鐵方法有不同的(de)(de)鑄(zhu)型(xing)(xing)(xing)(xing)(xing)準備內容。以(yi)砂(sha)(sha)(sha)型(xing)(xing)(xing)(xing)(xing)配重(zhong)鐵為例,鑄(zhu)型(xing)(xing)(xing)(xing)(xing)準備包括造(zao)(zao)型(xing)(xing)(xing)(xing)(xing)材料準備和造(zao)(zao)型(xing)(xing)(xing)(xing)(xing)造(zao)(zao)芯(xin)兩大(da)項工作(zuo)。砂(sha)(sha)(sha)型(xing)(xing)(xing)(xing)(xing)配重(zhong)鐵中用來造(zao)(zao)型(xing)(xing)(xing)(xing)(xing)造(zao)(zao)芯(xin)的(de)(de)原材料,如配重(zhong)鐵砂(sha)(sha)(sha)、型(xing)(xing)(xing)(xing)(xing)砂(sha)(sha)(sha)粘結劑和其(qi)他輔(fu)料,以(yi)及由它們(men)(men)配制成的(de)(de)型(xing)(xing)(xing)(xing)(xing)砂(sha)(sha)(sha)、芯(xin)砂(sha)(sha)(sha)、涂料等統稱(cheng)為造(zao)(zao)型(xing)(xing)(xing)(xing)(xing)材料造(zao)(zao)型(xing)(xing)(xing)(xing)(xing)材料準備的(de)(de)任務是按(an)照鑄(zhu)件的(de)(de)要(yao)求、金屬的(de)(de)性質,選(xuan)擇原砂(sha)(sha)(sha)、粘結劑和輔(fu)料,然后按(an)比(bi)例把(ba)它們(men)(men)混合成具有完美性能的(de)(de)型(xing)(xing)(xing)(xing)(xing)砂(sha)(sha)(sha)和芯(xin)砂(sha)(sha)(sha)。
常用的(de)混(hun)砂設備(bei)有碾輪式混(hun)砂機(ji)、逆(ni)流式混(hun)砂機(ji)和葉片溝槽式混(hun)砂機(ji)。后者(zhe)是為混(hun)合化(hua)學自硬砂設計的(de),連續混(hun)合,速度(du)快。 造(zao)(zao)型造(zao)(zao)芯是根(gen)據配重鐵工藝(yi)要求,在規劃好造(zao)(zao)型方法,準備(bei)好造(zao)(zao)型材料的(de)基(ji)礎上(shang)進行的(de)。
鑄件(jian)的精度生(sheng)產過(guo)程(cheng)的經濟(ji)好處,主要取決于這道工序。在很多現代化的配重鐵(tie)車間里,造(zao)(zao)型(xing)造(zao)(zao)芯(xin)(xin)都實現了機(ji)械化或自動化。常用的砂型(xing)造(zao)(zao)型(xing)造(zao)(zao)芯(xin)(xin)設備有高、中、低壓造(zao)(zao)型(xing)機(ji)、拋砂機(ji)、無箱射壓造(zao)(zao)型(xing)機(ji)、射芯(xin)(xin)機(ji)、冷和(he)熱芯(xin)(xin)盒(he)機(ji)等。
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