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鑄鐵配重塊是用于增(zeng)加自身重量(liang)來保持平衡的重物,是將噴丸(wan)機(ji)熔煉成符合 要(yao)求(qiu)的液體(ti)并澆進鑄型里(li),經(jing)冷卻(que)凝固、清整處理后得到有(you)預(yu)定形狀、尺(chi)寸和性(xing)能的鑄件的工藝過程。現(xian)代機(ji)械制造工業的基(ji)礎工藝之一。
工(gong)作(zuo)(zuo)面(mian)(mian)小范圍內(nei)的局(ju)(ju)部(bu)(bu)變化是(shi)指加(jia)工(gong)表面(mian)(mian)不平(ping)(ping)(ping)整,有變形(xing),灰口鐵(tie)(tie)可以(yi)看作(zuo)(zuo)是(shi)鋼的基(ji)體與片狀(zhuang)石(shi)墨的夾雜。因此(ci)石(shi)墨片越少(shao),越細,為了(le)保證鑄(zhu)鐵(tie)(tie)在(zai)澆鑄(zhu)能夠得(de)到(dao)灰口,且不至于得(de)到(dao)過多和(he)粗大(da)的石(shi)墨片,這(zhe)里所(suo)說(shuo)的工(gong)作(zuo)(zuo)面(mian)(mian)小范圍,對(dui)小鑄(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)而(er)(er)言(yan)是(shi)局(ju)(ju)部(bu)(bu)位(wei)置,對(dui)大(da)鑄(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)而(er)(er)言(yan)是(shi)局(ju)(ju)部(bu)(bu)面(mian)(mian)積。鑄(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)的平(ping)(ping)(ping)整性反(fan)映了(le)鑄(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)局(ju)(ju)部(bu)(bu)誤(wu)差鑄(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)的局(ju)(ju)部(bu)(bu)誤(wu)差是(shi)指鑄(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)工(gong)作(zuo)(zuo)面(mian)(mian)局(ju)(ju)部(bu)(bu)平(ping)(ping)(ping)面(mian)(mian)度加(jia)工(gong)質量,即(ji)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間里,造(zao)(zao)型(xing)(xing)造(zao)(zao)芯都實現了機(ji)(ji)(ji)械化或自動化。常用的砂型(xing)(xing)造(zao)(zao)型(xing)(xing)造(zao)(zao)芯設(she)備有高、中(zhong)、低(di)壓(ya)造(zao)(zao)型(xing)(xing)機(ji)(ji)(ji)、拋砂機(ji)(ji)(ji)、無箱射壓(ya)造(zao)(zao)型(xing)(xing)機(ji)(ji)(ji)、射芯機(ji)(ji)(ji)、冷(leng)和熱芯盒機(ji)(ji)(ji)等。
叉車配重鐵(tie)(tie)(tie)工藝可分(fen)為(wei)(wei)三個基(ji)本部分(fen),即配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)金(jin)(jin)(jin)屬(shu)(shu)準備(bei)、鑄(zhu)(zhu)型(xing)(xing)準備(bei)和(he)鑄(zhu)(zhu)件(jian)處理。 配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)金(jin)(jin)(jin)屬(shu)(shu)是指(zhi)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)生產(chan)(chan)中用于澆注鑄(zhu)(zhu)件(jian)的(de)(de)金(jin)(jin)(jin)屬(shu)(shu)材(cai)料(liao),它是以(yi)一種(zhong)金(jin)(jin)(jin)屬(shu)(shu)元素(su)為(wei)(wei)主要(yao)成分(fen),并加入其他金(jin)(jin)(jin)屬(shu)(shu)或非(fei)金(jin)(jin)(jin)屬(shu)(shu)元素(su)而組成的(de)(de)合(he)金(jin)(jin)(jin),習慣上稱為(wei)(wei)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)合(he)金(jin)(jin)(jin),主要(yao)有鑄(zhu)(zhu)鐵(tie)(tie)(tie)、鑄(zhu)(zhu)鋼和(he)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)有色合(he)金(jin)(jin)(jin)。叉車配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)按造型(xing)(xing)材(cai)料(liao)的(de)(de)不(bu)同,又可分(fen)為(wei)(wei)兩大類:一類以(yi)天然礦產(chan)(chan)砂石作(zuo)為(wei)(wei)主要(yao)造型(xing)(xing)材(cai)料(liao),如(ru)熔(rong)模配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、殼型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、負壓配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、泥型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、實型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、陶(tao)瓷型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)等;一類以(yi)金(jin)(jin)(jin)屬(shu)(shu)作(zuo)為(wei)(wei)主要(yao)鑄(zhu)(zhu)型(xing)(xing)材(cai)料(liao),如(ru)金(jin)(jin)(jin)屬(shu)(shu)型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、離心配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、連續(xu)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、叉車配(pei)(pei)(pei)件(jian)鐵(tie)(tie)(tie)、低壓配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)等。
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