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鑄鐵配重塊是(shi)用于增加自(zi)身重(zhong)量來保持平(ping)衡的(de)(de)重(zhong)物,是(shi)將(jiang)噴丸機(ji)熔(rong)煉成符合 要求的(de)(de)液(ye)體并(bing)澆進鑄型里,經冷卻凝固、清整處理后得到有預(yu)定形狀(zhuang)、尺寸和性能的(de)(de)鑄件的(de)(de)工(gong)藝過(guo)程。現代機(ji)械制(zhi)造工(gong)業的(de)(de)基礎工(gong)藝之一。
工(gong)(gong)作(zuo)面(mian)(mian)小(xiao)(xiao)范圍內的(de)局(ju)部(bu)變(bian)化是(shi)(shi)指(zhi)加(jia)工(gong)(gong)表面(mian)(mian)不平(ping)(ping)(ping)整(zheng),有變(bian)形,灰(hui)口鐵(tie)可以(yi)看作(zuo)是(shi)(shi)鋼的(de)基體(ti)與片(pian)(pian)狀石(shi)(shi)墨的(de)夾雜。因此石(shi)(shi)墨片(pian)(pian)越(yue)(yue)少,越(yue)(yue)細,為了保證鑄(zhu)(zhu)鐵(tie)在澆鑄(zhu)(zhu)能夠得到(dao)灰(hui)口,且不至(zhi)于得到(dao)過多和粗大的(de)石(shi)(shi)墨片(pian)(pian),這里所(suo)說的(de)工(gong)(gong)作(zuo)面(mian)(mian)小(xiao)(xiao)范圍,對(dui)小(xiao)(xiao)鑄(zhu)(zhu)鐵(tie)平(ping)(ping)(ping)板而(er)言(yan)是(shi)(shi)局(ju)部(bu)位(wei)置,對(dui)大鑄(zhu)(zhu)鐵(tie)平(ping)(ping)(ping)板而(er)言(yan)是(shi)(shi)局(ju)部(bu)面(mian)(mian)積。鑄(zhu)(zhu)鐵(tie)平(ping)(ping)(ping)板的(de)平(ping)(ping)(ping)整(zheng)性反映了鑄(zhu)(zhu)鐵(tie)平(ping)(ping)(ping)板局(ju)部(bu)誤(wu)差鑄(zhu)(zhu)鐵(tie)平(ping)(ping)(ping)板的(de)局(ju)部(bu)誤(wu)差是(shi)(shi)指(zhi)鑄(zhu)(zhu)鐵(tie)平(ping)(ping)(ping)板工(gong)(gong)作(zuo)面(mian)(mian)局(ju)部(bu)平(ping)(ping)(ping)面(mian)(mian)度加(jia)工(gong)(gong)質量,即表面(mian)(mian)粗糙度。
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(che)間里,造(zao)(zao)型造(zao)(zao)芯(xin)都實現了機(ji)(ji)械化或自動化。常(chang)用的砂(sha)型造(zao)(zao)型造(zao)(zao)芯(xin)設備有高、中、低壓(ya)造(zao)(zao)型機(ji)(ji)、拋砂(sha)機(ji)(ji)、無箱射壓(ya)造(zao)(zao)型機(ji)(ji)、射芯(xin)機(ji)(ji)、冷和熱芯(xin)盒機(ji)(ji)等。
叉車配重鐵(tie)(tie)(tie)(tie)(tie)工藝可分(fen)為三個(ge)基(ji)本部分(fen),即(ji)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)金(jin)(jin)屬(shu)(shu)準(zhun)備、鑄(zhu)型(xing)準(zhun)備和(he)鑄(zhu)件(jian)處理。 配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)金(jin)(jin)屬(shu)(shu)是指(zhi)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)生(sheng)產中用于(yu)澆注鑄(zhu)件(jian)的(de)金(jin)(jin)屬(shu)(shu)材料(liao)(liao),它是以(yi)一種金(jin)(jin)屬(shu)(shu)元素為主要成分(fen),并(bing)加入(ru)其他金(jin)(jin)屬(shu)(shu)或非金(jin)(jin)屬(shu)(shu)元素而組成的(de)合(he)金(jin)(jin),習(xi)慣上稱為配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)合(he)金(jin)(jin),主要有鑄(zhu)鐵(tie)(tie)(tie)(tie)(tie)、鑄(zhu)鋼和(he)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)有色合(he)金(jin)(jin)。叉車配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)按(an)造型(xing)材料(liao)(liao)的(de)不同(tong),又可分(fen)為兩大類(lei):一類(lei)以(yi)天(tian)然礦(kuang)產砂石作(zuo)為主要造型(xing)材料(liao)(liao),如(ru)熔模配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、殼(ke)型(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、負壓(ya)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、泥型(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、實型(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、陶瓷型(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)等;一類(lei)以(yi)金(jin)(jin)屬(shu)(shu)作(zuo)為主要鑄(zhu)型(xing)材料(liao)(liao),如(ru)金(jin)(jin)屬(shu)(shu)型(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、離心配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、連續配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、叉車配(pei)(pei)(pei)件(jian)鐵(tie)(tie)(tie)(tie)(tie)、低壓(ya)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)等。
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