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鑄鐵配重塊是用于增(zeng)加自身重量來(lai)保持平衡(heng)的(de)重物(wu),是將(jiang)噴丸機熔煉成(cheng)符(fu)合 要(yao)求的(de)液體(ti)并澆(jiao)進鑄(zhu)型里(li),經冷卻凝固、清整處(chu)理后(hou)得到(dao)有預定(ding)形狀(zhuang)、尺寸和性能的(de)鑄(zhu)件的(de)工(gong)藝(yi)過(guo)程。現代(dai)機械制造(zao)工(gong)業的(de)基(ji)礎工(gong)藝(yi)之一。
工(gong)(gong)作面(mian)小范圍內的(de)局(ju)部變(bian)化(hua)是指加(jia)工(gong)(gong)表(biao)面(mian)不(bu)平(ping)整,有(you)變(bian)形,灰(hui)口鐵(tie)可(ke)以(yi)看(kan)作是鋼的(de)基(ji)體與片狀(zhuang)石(shi)墨(mo)的(de)夾雜。因此石(shi)墨(mo)片越少,越細,為了保(bao)證鑄(zhu)(zhu)鐵(tie)在(zai)澆(jiao)鑄(zhu)(zhu)能(neng)夠(gou)得到灰(hui)口,且(qie)不(bu)至于得到過多和粗(cu)大的(de)石(shi)墨(mo)片,這里所說的(de)工(gong)(gong)作面(mian)小范圍,對小鑄(zhu)(zhu)鐵(tie)平(ping)板(ban)(ban)而(er)言是局(ju)部位(wei)置(zhi),對大鑄(zhu)(zhu)鐵(tie)平(ping)板(ban)(ban)而(er)言是局(ju)部面(mian)積(ji)。鑄(zhu)(zhu)鐵(tie)平(ping)板(ban)(ban)的(de)平(ping)整性反映了鑄(zhu)(zhu)鐵(tie)平(ping)板(ban)(ban)局(ju)部誤差鑄(zhu)(zhu)鐵(tie)平(ping)板(ban)(ban)的(de)局(ju)部誤差是指鑄(zhu)(zhu)鐵(tie)平(ping)板(ban)(ban)工(gong)(gong)作面(mian)局(ju)部平(ping)面(mian)度加(jia)工(gong)(gong)質量,即表(biao)面(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)(zao)(zao)型(xing)造(zao)(zao)(zao)芯都實現了機(ji)械化(hua)或自動化(hua)。常用的(de)砂型(xing)造(zao)(zao)(zao)型(xing)造(zao)(zao)(zao)芯設(she)備有高、中、低(di)壓造(zao)(zao)(zao)型(xing)機(ji)、拋砂機(ji)、無箱(xiang)射(she)壓造(zao)(zao)(zao)型(xing)機(ji)、射(she)芯機(ji)、冷和熱(re)芯盒(he)機(ji)等。
叉車配重鐵(tie)(tie)工藝可分為(wei)三個(ge)基本部分,即配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)金(jin)(jin)(jin)(jin)屬(shu)(shu)(shu)準備、鑄(zhu)(zhu)型(xing)(xing)準備和鑄(zhu)(zhu)件處理。 配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)金(jin)(jin)(jin)(jin)屬(shu)(shu)(shu)是(shi)指配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)生產中(zhong)用于澆(jiao)注鑄(zhu)(zhu)件的金(jin)(jin)(jin)(jin)屬(shu)(shu)(shu)材(cai)料,它是(shi)以(yi)一種(zhong)金(jin)(jin)(jin)(jin)屬(shu)(shu)(shu)元素(su)為(wei)主要(yao)成(cheng)分,并加入其他金(jin)(jin)(jin)(jin)屬(shu)(shu)(shu)或非(fei)金(jin)(jin)(jin)(jin)屬(shu)(shu)(shu)元素(su)而組成(cheng)的合金(jin)(jin)(jin)(jin),習慣(guan)上稱為(wei)配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)合金(jin)(jin)(jin)(jin),主要(yao)有(you)鑄(zhu)(zhu)鐵(tie)(tie)、鑄(zhu)(zhu)鋼和配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)有(you)色合金(jin)(jin)(jin)(jin)。叉車(che)配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)按造(zao)型(xing)(xing)材(cai)料的不同,又可分為(wei)兩大類(lei):一類(lei)以(yi)天然礦產砂石作為(wei)主要(yao)造(zao)型(xing)(xing)材(cai)料,如熔模配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、殼型(xing)(xing)配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、負(fu)壓(ya)配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、泥型(xing)(xing)配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、實型(xing)(xing)配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、陶瓷型(xing)(xing)配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)等;一類(lei)以(yi)金(jin)(jin)(jin)(jin)屬(shu)(shu)(shu)作為(wei)主要(yao)鑄(zhu)(zhu)型(xing)(xing)材(cai)料,如金(jin)(jin)(jin)(jin)屬(shu)(shu)(shu)型(xing)(xing)配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、離心配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、連續配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、叉車(che)配(pei)(pei)(pei)(pei)(pei)(pei)件鐵(tie)(tie)、低壓(ya)配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)等。
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