一般铝(lv)(lv)铸(zhu)造工艺是直(zhi)接(jie)将铝(lv)(lv)熔(rong)化,然后放入铸(zhu)造模具中(zhong)进行操作,使其成为客(ke)户(hu)想要的产(chan)(chan)品形状。可以说是应用广泛,像机(ji)床、汽车、拖拉机(ji)等很多地方(fang)都(dou)会用到(dao)。但(dan)是像铝(lv)(lv)铸(zhu)造这样的产(chan)(chan)品主要有哪些(xie)类(lei)型呢?
铝铸造(zao)的主要类别
铝(lv)铸造(zao)的主要工艺流程包括:金属熔化、模具制造(zao)、浇(jiao)注凝固、脱模和清理(li)等(deng)。用于铸造(zao)的主要材(cai)料有铸钢、铸铁、铸造(zao)有色合(he)金(铜、铝(lv)、锌、铅等(deng))。)等(deng)等(deng)。
铝铸造(zao)工(gong)(gong)(gong)艺(yi)可分为砂型(xing)(xing)铸造(zao)工(gong)(gong)(gong)艺(yi)和特(te)种铸造(zao)工(gong)(gong)(gong)艺(yi)。压(ya)制包埋料时(shi),采用(yong)型(xing)(xing)腔(qiang)表(biao)面(mian)光(guang)洁(jie)度(du)(du)高(gao)(gao)的(de)(de)成型(xing)(xing),因(yin)此包埋料的(de)(de)表(biao)面(mian)光(guang)洁(jie)度(du)(du)也高(gao)(gao)。此外,型(xing)(xing)壳由特(te)殊耐(nai)高(gao)(gao)温粘结剂和耐(nai)火材料制成的(de)(de)耐(nai)火涂料制成,涂覆在熔(rong)(rong)模(mo)(mo)(mo)上,与熔(rong)(rong)融(rong)金(jin)属(shu)直接(jie)接(jie)触的(de)(de)型(xing)(xing)腔(qiang)内表(biao)面(mian)光(guang)洁(jie)度(du)(du)高(gao)(gao)。因(yin)此,熔(rong)(rong)模(mo)(mo)(mo)铸件(jian)的(de)(de)表(biao)面(mian)光(guang)洁(jie)度(du)(du)高(gao)(gao)于一般铸件(jian)。当使(shi)用(yong)铝铸造(zao)时(shi),其比(bi)较大的(de)(de)优点(dian)是熔(rong)(rong)模(mo)(mo)(mo)铸件(jian)具有(you)高(gao)(gao)的(de)(de)尺(chi)寸(cun)精度(du)(du)和表(biao)面(mian)光(guang)洁(jie)度(du)(du),因(yin)此可以(yi)(yi)减少(shao)操作过程中的(de)(de)机(ji)械加(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)作。要求较高(gao)(gao)的(de)(de)部位只能(neng)留(liu)一点(dian)点(dian)加(jia)工(gong)(gong)(gong)余(yu)量(liang),甚至有(you)些铸件(jian)不(bu)需要加(jia)工(gong)(gong)(gong),只留(liu)打磨抛光(guang)余(yu)量(liang)可以(yi)(yi)使(shi)用(yong)。可见熔(rong)(rong)模(mo)(mo)(mo)铸造(zao)法可以(yi)(yi)节(jie)省大量(liang)的(de)(de)机(ji)床、加(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)时(shi)和金(jin)属(shu)原材料。