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鑄鐵配重塊是用于(yu)增加自身重(zhong)量來保持平衡的重(zhong)物(wu),是將(jiang)噴丸(wan)機(ji)(ji)熔(rong)煉成符(fu)合 要求的液體(ti)并澆進鑄型里,經冷卻凝固、清整(zheng)處理(li)后得到(dao)有預定形狀、尺(chi)寸和性能的鑄件的工(gong)藝(yi)過(guo)程。現代機(ji)(ji)械制造工(gong)業的基礎工(gong)藝(yi)之(zhi)一。
工(gong)(gong)作面(mian)(mian)(mian)小范圍(wei)(wei)內的(de)(de)局部變(bian)化(hua)是(shi)指(zhi)加(jia)工(gong)(gong)表(biao)面(mian)(mian)(mian)不(bu)平(ping)(ping)整,有變(bian)形,灰口(kou)鐵(tie)可(ke)以看作是(shi)鋼的(de)(de)基體(ti)與(yu)片(pian)狀石(shi)墨的(de)(de)夾雜。因此(ci)石(shi)墨片(pian)越少(shao),越細,為了保證鑄(zhu)鐵(tie)在澆鑄(zhu)能夠得到(dao)灰口(kou),且不(bu)至于得到(dao)過(guo)多(duo)和粗大的(de)(de)石(shi)墨片(pian),這里所說的(de)(de)工(gong)(gong)作面(mian)(mian)(mian)小范圍(wei)(wei),對小鑄(zhu)鐵(tie)平(ping)(ping)板(ban)(ban)而言(yan)是(shi)局部位(wei)置(zhi),對大鑄(zhu)鐵(tie)平(ping)(ping)板(ban)(ban)而言(yan)是(shi)局部面(mian)(mian)(mian)積。鑄(zhu)鐵(tie)平(ping)(ping)板(ban)(ban)的(de)(de)平(ping)(ping)整性反映了鑄(zhu)鐵(tie)平(ping)(ping)板(ban)(ban)局部誤差(cha)鑄(zhu)鐵(tie)平(ping)(ping)板(ban)(ban)的(de)(de)局部誤差(cha)是(shi)指(zhi)鑄(zhu)鐵(tie)平(ping)(ping)板(ban)(ban)工(gong)(gong)作面(mian)(mian)(mian)局部平(ping)(ping)面(mian)(mian)(mian)度(du)加(jia)工(gong)(gong)質量,即表(biao)面(mian)(mian)(mian)粗糙度(du)。
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(che)間里,造(zao)型造(zao)芯都(dou)實現了機(ji)械化或自動化。常用(yong)的砂型造(zao)型造(zao)芯設備有高、中、低壓(ya)造(zao)型機(ji)、拋砂機(ji)、無箱射(she)壓(ya)造(zao)型機(ji)、射(she)芯機(ji)、冷和熱芯盒機(ji)等(deng)。
叉車配重鐵(tie)(tie)(tie)工(gong)藝可分(fen)為(wei)三(san)個基本部分(fen),即(ji)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)金(jin)(jin)(jin)(jin)(jin)屬(shu)準備(bei)、鑄(zhu)型(xing)準備(bei)和鑄(zhu)件處理。 配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)金(jin)(jin)(jin)(jin)(jin)屬(shu)是指配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)生產中用于澆注鑄(zhu)件的金(jin)(jin)(jin)(jin)(jin)屬(shu)材(cai)(cai)(cai)料(liao),它是以(yi)(yi)一(yi)種(zhong)金(jin)(jin)(jin)(jin)(jin)屬(shu)元素為(wei)主(zhu)要(yao)成(cheng)分(fen),并加(jia)入其他金(jin)(jin)(jin)(jin)(jin)屬(shu)或非(fei)金(jin)(jin)(jin)(jin)(jin)屬(shu)元素而(er)組成(cheng)的合(he)金(jin)(jin)(jin)(jin)(jin),習(xi)慣(guan)上稱為(wei)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)合(he)金(jin)(jin)(jin)(jin)(jin),主(zhu)要(yao)有鑄(zhu)鐵(tie)(tie)(tie)、鑄(zhu)鋼和配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)有色合(he)金(jin)(jin)(jin)(jin)(jin)。叉車(che)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)按造型(xing)材(cai)(cai)(cai)料(liao)的不同,又可分(fen)為(wei)兩大(da)類(lei)(lei):一(yi)類(lei)(lei)以(yi)(yi)天(tian)然礦產砂石作為(wei)主(zhu)要(yao)造型(xing)材(cai)(cai)(cai)料(liao),如熔模配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、殼(ke)型(xing)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、負壓配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、泥型(xing)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、實型(xing)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、陶瓷型(xing)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)等(deng);一(yi)類(lei)(lei)以(yi)(yi)金(jin)(jin)(jin)(jin)(jin)屬(shu)作為(wei)主(zhu)要(yao)鑄(zhu)型(xing)材(cai)(cai)(cai)料(liao),如金(jin)(jin)(jin)(jin)(jin)屬(shu)型(xing)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、離心配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、連續配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、叉車(che)配(pei)(pei)(pei)(pei)(pei)件鐵(tie)(tie)(tie)、低壓配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)等(deng)。
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