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鑄鐵配重塊是用于增(zeng)加自(zi)身重量來保持平衡的重物,是將(jiang)噴(pen)丸(wan)機熔煉成符合 要求(qiu)的液體并澆進鑄(zhu)型(xing)里,經冷卻凝(ning)固、清(qing)整處理后得到有預定形狀、尺寸和性能的鑄(zhu)件(jian)的工藝(yi)過程。現代機械制造工業的基礎工藝(yi)之一(yi)。
工(gong)作面(mian)(mian)(mian)(mian)小范(fan)圍內的局(ju)(ju)部變(bian)化是(shi)(shi)指加工(gong)表面(mian)(mian)(mian)(mian)不平(ping)(ping)整,有(you)變(bian)形(xing),灰口(kou)鐵(tie)(tie)可以看作是(shi)(shi)鋼的基(ji)體(ti)與片狀石墨(mo)的夾雜。因此石墨(mo)片越(yue)(yue)少,越(yue)(yue)細,為了(le)(le)保(bao)證鑄(zhu)鐵(tie)(tie)在澆(jiao)鑄(zhu)能夠得到灰口(kou),且不至(zhi)于(yu)得到過多和粗(cu)大的石墨(mo)片,這里所說的工(gong)作面(mian)(mian)(mian)(mian)小范(fan)圍,對小鑄(zhu)鐵(tie)(tie)平(ping)(ping)板(ban)(ban)而言(yan)是(shi)(shi)局(ju)(ju)部位置,對大鑄(zhu)鐵(tie)(tie)平(ping)(ping)板(ban)(ban)而言(yan)是(shi)(shi)局(ju)(ju)部面(mian)(mian)(mian)(mian)積。鑄(zhu)鐵(tie)(tie)平(ping)(ping)板(ban)(ban)的平(ping)(ping)整性反映了(le)(le)鑄(zhu)鐵(tie)(tie)平(ping)(ping)板(ban)(ban)局(ju)(ju)部誤差鑄(zhu)鐵(tie)(tie)平(ping)(ping)板(ban)(ban)的局(ju)(ju)部誤差是(shi)(shi)指鑄(zhu)鐵(tie)(tie)平(ping)(ping)板(ban)(ban)工(gong)作面(mian)(mian)(mian)(mian)局(ju)(ju)部平(ping)(ping)面(mian)(mian)(mian)(mian)度(du)加工(gong)質量,即(ji)表面(mian)(mian)(mian)(mian)粗(cu)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(che)間里,造(zao)型(xing)(xing)(xing)造(zao)芯都實現了機(ji)械化(hua)或自(zi)動化(hua)。常用的砂(sha)型(xing)(xing)(xing)造(zao)型(xing)(xing)(xing)造(zao)芯設備有(you)高、中、低壓(ya)造(zao)型(xing)(xing)(xing)機(ji)、拋砂(sha)機(ji)、無箱射壓(ya)造(zao)型(xing)(xing)(xing)機(ji)、射芯機(ji)、冷和(he)熱芯盒機(ji)等(deng)。
叉車配重鐵(tie)工藝(yi)可分(fen)為(wei)三個(ge)基(ji)本(ben)部(bu)分(fen),即配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)鐵(tie)金(jin)屬準(zhun)備(bei)、鑄(zhu)(zhu)(zhu)型(xing)準(zhun)備(bei)和(he)鑄(zhu)(zhu)(zhu)件處理。 配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)鐵(tie)金(jin)屬是指配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)鐵(tie)生產(chan)中(zhong)用于澆注鑄(zhu)(zhu)(zhu)件的(de)(de)金(jin)屬材料(liao)(liao),它是以一種金(jin)屬元(yuan)素為(wei)主(zhu)要(yao)(yao)(yao)(yao)成(cheng)分(fen),并加入其他金(jin)屬或(huo)非金(jin)屬元(yuan)素而組(zu)成(cheng)的(de)(de)合金(jin),習慣上(shang)稱為(wei)配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)鐵(tie)合金(jin),主(zhu)要(yao)(yao)(yao)(yao)有鑄(zhu)(zhu)(zhu)鐵(tie)、鑄(zhu)(zhu)(zhu)鋼和(he)配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)鐵(tie)有色合金(jin)。叉車(che)配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)鐵(tie)按造型(xing)材料(liao)(liao)的(de)(de)不同,又可分(fen)為(wei)兩大類(lei):一類(lei)以天然礦產(chan)砂石作為(wei)主(zhu)要(yao)(yao)(yao)(yao)造型(xing)材料(liao)(liao),如(ru)熔模配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)鐵(tie)、殼型(xing)配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)鐵(tie)、負(fu)壓配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)鐵(tie)、泥型(xing)配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)鐵(tie)、實型(xing)配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)鐵(tie)、陶瓷型(xing)配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)鐵(tie)等;一類(lei)以金(jin)屬作為(wei)主(zhu)要(yao)(yao)(yao)(yao)鑄(zhu)(zhu)(zhu)型(xing)材料(liao)(liao),如(ru)金(jin)屬型(xing)配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)鐵(tie)、離心配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)鐵(tie)、連續配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)鐵(tie)、叉車(che)配(pei)(pei)(pei)(pei)(pei)(pei)件鐵(tie)、低壓配(pei)(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)鐵(tie)等。
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