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鑄鐵配重塊是用于增加(jia)自身(shen)重量來保持平衡的(de)(de)重物,是將噴丸機熔煉成符合 要(yao)求的(de)(de)液體并澆進(jin)鑄型里,經冷卻凝固(gu)、清整(zheng)處理后得(de)到有預(yu)定形狀、尺(chi)寸和性能的(de)(de)鑄件的(de)(de)工藝過程。現代(dai)機械(xie)制造工業的(de)(de)基礎工藝之一。
工(gong)作(zuo)面(mian)(mian)(mian)小(xiao)范(fan)圍(wei)內(nei)的(de)局(ju)部變化是(shi)指(zhi)加工(gong)表面(mian)(mian)(mian)不平(ping)整,有(you)變形,灰(hui)口(kou)鐵(tie)(tie)可以看作(zuo)是(shi)鋼的(de)基體與(yu)片狀石墨(mo)的(de)夾雜(za)。因此(ci)石墨(mo)片越(yue)少(shao),越(yue)細,為了(le)保證(zheng)鑄(zhu)(zhu)鐵(tie)(tie)在澆鑄(zhu)(zhu)能(neng)夠得到灰(hui)口(kou),且(qie)不至于(yu)得到過多和(he)粗大的(de)石墨(mo)片,這(zhe)里所(suo)說的(de)工(gong)作(zuo)面(mian)(mian)(mian)小(xiao)范(fan)圍(wei),對小(xiao)鑄(zhu)(zhu)鐵(tie)(tie)平(ping)板(ban)(ban)而(er)言是(shi)局(ju)部位置,對大鑄(zhu)(zhu)鐵(tie)(tie)平(ping)板(ban)(ban)而(er)言是(shi)局(ju)部面(mian)(mian)(mian)積。鑄(zhu)(zhu)鐵(tie)(tie)平(ping)板(ban)(ban)的(de)平(ping)整性反映了(le)鑄(zhu)(zhu)鐵(tie)(tie)平(ping)板(ban)(ban)局(ju)部誤(wu)差鑄(zhu)(zhu)鐵(tie)(tie)平(ping)板(ban)(ban)的(de)局(ju)部誤(wu)差是(shi)指(zhi)鑄(zhu)(zhu)鐵(tie)(tie)平(ping)板(ban)(ban)工(gong)作(zuo)面(mian)(mian)(mian)局(ju)部平(ping)面(mian)(mian)(mian)度(du)加工(gong)質(zhi)量,即(ji)表面(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間里,造(zao)型(xing)(xing)造(zao)芯都實現了機械(xie)化或自動化。常用的砂型(xing)(xing)造(zao)型(xing)(xing)造(zao)芯設備有高、中、低壓(ya)造(zao)型(xing)(xing)機、拋砂機、無(wu)箱射(she)壓(ya)造(zao)型(xing)(xing)機、射(she)芯機、冷和(he)熱芯盒(he)機等。
叉車配重鐵(tie)(tie)(tie)工藝可分為(wei)(wei)三個基(ji)本(ben)部分,即(ji)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)金(jin)(jin)(jin)(jin)屬準備、鑄(zhu)型(xing)準備和鑄(zhu)件處(chu)理(li)。 配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)金(jin)(jin)(jin)(jin)屬是(shi)指配(pei)(pei)(pei)(pei)重(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)屬材(cai)(cai)(cai)料(liao),它是(shi)以(yi)一(yi)(yi)種金(jin)(jin)(jin)(jin)屬元(yuan)素為(wei)(wei)主(zhu)要成(cheng)分,并加入其他金(jin)(jin)(jin)(jin)屬或非金(jin)(jin)(jin)(jin)屬元(yuan)素而組成(cheng)的合金(jin)(jin)(jin)(jin),習慣(guan)上(shang)稱為(wei)(wei)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)合金(jin)(jin)(jin)(jin),主(zhu)要有鑄(zhu)鐵(tie)(tie)(tie)、鑄(zhu)鋼和配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)有色合金(jin)(jin)(jin)(jin)。叉車配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)按造型(xing)材(cai)(cai)(cai)料(liao)的不(bu)同(tong),又可分為(wei)(wei)兩大類:一(yi)(yi)類以(yi)天然礦產砂石作為(wei)(wei)主(zhu)要造型(xing)材(cai)(cai)(cai)料(liao),如熔模配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、殼型(xing)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、負壓配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、泥型(xing)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、實型(xing)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、陶瓷型(xing)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)等;一(yi)(yi)類以(yi)金(jin)(jin)(jin)(jin)屬作為(wei)(wei)主(zhu)要鑄(zhu)型(xing)材(cai)(cai)(cai)料(liao),如金(jin)(jin)(jin)(jin)屬型(xing)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、離心配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、連續配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、叉車配(pei)(pei)(pei)(pei)件鐵(tie)(tie)(tie)、低(di)壓配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)等。
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