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鑄鐵配重塊是(shi)用(yong)于增加自身(shen)重(zhong)(zhong)量(liang)來保持(chi)平衡的重(zhong)(zhong)物,是(shi)將噴丸機(ji)熔煉成符(fu)合 要(yao)求的液體并澆(jiao)進鑄(zhu)型里,經冷卻(que)凝固、清整處理后得到有(you)預定形(xing)狀、尺寸和性能的鑄(zhu)件的工(gong)藝(yi)過程(cheng)。現代機(ji)械制造工(gong)業的基(ji)礎工(gong)藝(yi)之一。
工(gong)(gong)作(zuo)面(mian)(mian)小范圍(wei)內的(de)局部(bu)(bu)(bu)(bu)(bu)變化是指加工(gong)(gong)表(biao)面(mian)(mian)不平(ping)(ping)(ping)整,有變形,灰口鐵(tie)(tie)(tie)可以看作(zuo)是鋼(gang)的(de)基體與片狀石(shi)墨(mo)(mo)的(de)夾雜。因此石(shi)墨(mo)(mo)片越少,越細(xi),為了保證(zheng)鑄(zhu)鐵(tie)(tie)(tie)在澆鑄(zhu)能(neng)夠得到灰口,且不至于得到過(guo)多和粗(cu)大(da)的(de)石(shi)墨(mo)(mo)片,這(zhe)里所說的(de)工(gong)(gong)作(zuo)面(mian)(mian)小范圍(wei),對小鑄(zhu)鐵(tie)(tie)(tie)平(ping)(ping)(ping)板而(er)言(yan)是局部(bu)(bu)(bu)(bu)(bu)位置,對大(da)鑄(zhu)鐵(tie)(tie)(tie)平(ping)(ping)(ping)板而(er)言(yan)是局部(bu)(bu)(bu)(bu)(bu)面(mian)(mian)積。鑄(zhu)鐵(tie)(tie)(tie)平(ping)(ping)(ping)板的(de)平(ping)(ping)(ping)整性反映了鑄(zhu)鐵(tie)(tie)(tie)平(ping)(ping)(ping)板局部(bu)(bu)(bu)(bu)(bu)誤差鑄(zhu)鐵(tie)(tie)(tie)平(ping)(ping)(ping)板的(de)局部(bu)(bu)(bu)(bu)(bu)誤差是指鑄(zhu)鐵(tie)(tie)(tie)平(ping)(ping)(ping)板工(gong)(gong)作(zuo)面(mian)(mian)局部(bu)(bu)(bu)(bu)(bu)平(ping)(ping)(ping)面(mian)(mian)度加工(gong)(gong)質量,即表(biao)面(mian)(mian)粗(cu)糙度。
鑄件的精度和生產過程的經濟表現,主要取決于這道工序。在很多現代化的配重鐵車間(jian)里,造(zao)(zao)型(xing)造(zao)(zao)芯都實現了機(ji)械化或自動化。常用的砂型(xing)造(zao)(zao)型(xing)造(zao)(zao)芯設備有(you)高、中、低壓(ya)造(zao)(zao)型(xing)機(ji)、拋(pao)砂機(ji)、無箱射壓(ya)造(zao)(zao)型(xing)機(ji)、射芯機(ji)、冷和熱(re)芯盒機(ji)等(deng)。
叉車配重鐵(tie)(tie)工藝可分(fen)(fen)(fen)(fen)為三個基(ji)本部(bu)分(fen)(fen)(fen)(fen),即配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)金(jin)(jin)屬(shu)(shu)(shu)準備、鑄(zhu)型(xing)(xing)(xing)準備和(he)鑄(zhu)件(jian)(jian)處理(li)。 配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)金(jin)(jin)屬(shu)(shu)(shu)是指(zhi)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)生產中用(yong)于(yu)澆(jiao)注鑄(zhu)件(jian)(jian)的金(jin)(jin)屬(shu)(shu)(shu)材(cai)料(liao),它是以(yi)一(yi)種金(jin)(jin)屬(shu)(shu)(shu)元(yuan)素為主要成(cheng)分(fen)(fen)(fen)(fen),并加(jia)入(ru)其(qi)他金(jin)(jin)屬(shu)(shu)(shu)或(huo)非(fei)金(jin)(jin)屬(shu)(shu)(shu)元(yuan)素而組(zu)成(cheng)的合(he)(he)金(jin)(jin),習慣上稱為配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)合(he)(he)金(jin)(jin),主要有鑄(zhu)鐵(tie)(tie)、鑄(zhu)鋼和(he)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)有色合(he)(he)金(jin)(jin)。叉車配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)按造型(xing)(xing)(xing)材(cai)料(liao)的不同(tong),又可分(fen)(fen)(fen)(fen)為兩大類:一(yi)類以(yi)天(tian)然礦產砂石(shi)作為主要造型(xing)(xing)(xing)材(cai)料(liao),如(ru)熔模配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、殼型(xing)(xing)(xing)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、負壓(ya)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、泥型(xing)(xing)(xing)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、實型(xing)(xing)(xing)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、陶瓷型(xing)(xing)(xing)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)等;一(yi)類以(yi)金(jin)(jin)屬(shu)(shu)(shu)作為主要鑄(zhu)型(xing)(xing)(xing)材(cai)料(liao),如(ru)金(jin)(jin)屬(shu)(shu)(shu)型(xing)(xing)(xing)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、離心配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、連(lian)續配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、叉車配(pei)(pei)(pei)(pei)件(jian)(jian)鐵(tie)(tie)、低壓(ya)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)等。
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