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鑄鐵配重塊是(shi)用于增(zeng)加自身重(zhong)量來(lai)保(bao)持平(ping)衡的(de)(de)重(zhong)物,是(shi)將噴丸(wan)機(ji)(ji)熔煉成(cheng)符合 要求的(de)(de)液體(ti)并澆進鑄型里,經冷卻凝固、清整處理后(hou)得到有(you)預定形(xing)狀、尺寸(cun)和性能的(de)(de)鑄件的(de)(de)工(gong)藝(yi)過程。現代機(ji)(ji)械制造工(gong)業的(de)(de)基(ji)礎(chu)工(gong)藝(yi)之一。
工(gong)(gong)作面(mian)(mian)小(xiao)范圍(wei)內的(de)局(ju)(ju)部(bu)(bu)變化是指加(jia)工(gong)(gong)表面(mian)(mian)不平(ping)(ping)整,有(you)變形(xing),灰口(kou)鐵(tie)(tie)(tie)可以看作是鋼的(de)基體與片狀石(shi)墨的(de)夾(jia)雜。因此石(shi)墨片越(yue)少(shao),越(yue)細,為了保證鑄(zhu)(zhu)鐵(tie)(tie)(tie)在澆(jiao)鑄(zhu)(zhu)能夠得(de)到灰口(kou),且不至于得(de)到過多和粗(cu)大的(de)石(shi)墨片,這里(li)所說(shuo)的(de)工(gong)(gong)作面(mian)(mian)小(xiao)范圍(wei),對(dui)小(xiao)鑄(zhu)(zhu)鐵(tie)(tie)(tie)平(ping)(ping)板而言(yan)是局(ju)(ju)部(bu)(bu)位(wei)置,對(dui)大鑄(zhu)(zhu)鐵(tie)(tie)(tie)平(ping)(ping)板而言(yan)是局(ju)(ju)部(bu)(bu)面(mian)(mian)積。鑄(zhu)(zhu)鐵(tie)(tie)(tie)平(ping)(ping)板的(de)平(ping)(ping)整性(xing)反(fan)映了鑄(zhu)(zhu)鐵(tie)(tie)(tie)平(ping)(ping)板局(ju)(ju)部(bu)(bu)誤(wu)差鑄(zhu)(zhu)鐵(tie)(tie)(tie)平(ping)(ping)板的(de)局(ju)(ju)部(bu)(bu)誤(wu)差是指鑄(zhu)(zhu)鐵(tie)(tie)(tie)平(ping)(ping)板工(gong)(gong)作面(mian)(mian)局(ju)(ju)部(bu)(bu)平(ping)(ping)面(mian)(mian)度加(jia)工(gong)(gong)質量,即表面(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里,造(zao)型造(zao)芯都實(shi)現了(le)機(ji)械化或自(zi)動化。常用的砂型造(zao)型造(zao)芯設(she)備有高(gao)、中、低壓造(zao)型機(ji)、拋砂機(ji)、無(wu)箱射壓造(zao)型機(ji)、射芯機(ji)、冷和熱芯盒(he)機(ji)等(deng)。
叉車配重鐵(tie)工藝可分為三個基本部分,即配(pei)(pei)(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)金(jin)屬(shu)準備、鑄(zhu)型(xing)(xing)準備和(he)鑄(zhu)件(jian)(jian)處理。 配(pei)(pei)(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)金(jin)屬(shu)是(shi)(shi)指配(pei)(pei)(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)生產中用于澆(jiao)注(zhu)鑄(zhu)件(jian)(jian)的金(jin)屬(shu)材(cai)(cai)料,它(ta)是(shi)(shi)以一種金(jin)屬(shu)元素(su)為主要成(cheng)分,并加入其(qi)他(ta)金(jin)屬(shu)或非金(jin)屬(shu)元素(su)而組成(cheng)的合金(jin),習慣上稱為配(pei)(pei)(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)合金(jin),主要有(you)鑄(zhu)鐵(tie)、鑄(zhu)鋼和(he)配(pei)(pei)(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)有(you)色合金(jin)。叉車(che)配(pei)(pei)(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)按造型(xing)(xing)材(cai)(cai)料的不同,又可分為兩大類:一類以天然礦產砂石作(zuo)為主要造型(xing)(xing)材(cai)(cai)料,如熔模配(pei)(pei)(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)、殼型(xing)(xing)配(pei)(pei)(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)、負壓配(pei)(pei)(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)、泥型(xing)(xing)配(pei)(pei)(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)、實型(xing)(xing)配(pei)(pei)(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)、陶(tao)瓷型(xing)(xing)配(pei)(pei)(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)等;一類以金(jin)屬(shu)作(zuo)為主要鑄(zhu)型(xing)(xing)材(cai)(cai)料,如金(jin)屬(shu)型(xing)(xing)配(pei)(pei)(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)、離心配(pei)(pei)(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)、連(lian)續配(pei)(pei)(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)、叉車(che)配(pei)(pei)(pei)(pei)(pei)(pei)(pei)(pei)件(jian)(jian)鐵(tie)、低壓配(pei)(pei)(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)等。
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