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鑄鐵配重塊是用于增加自身重量來保持(chi)平衡的(de)重物,是將(jiang)噴丸機熔煉成符(fu)合(he) 要求的(de)液體并澆進鑄型里,經冷卻(que)凝固(gu)、清整處理后(hou)得(de)到(dao)有(you)預定(ding)形狀、尺寸和性能(neng)的(de)鑄件的(de)工(gong)藝過程。現代(dai)機械制造(zao)工(gong)業的(de)基礎工(gong)藝之一。
工(gong)(gong)作面(mian)小(xiao)范圍內的(de)局(ju)部(bu)(bu)變(bian)化(hua)是(shi)(shi)指(zhi)加工(gong)(gong)表面(mian)不平(ping)整,有變(bian)形,灰口鐵(tie)可以看作是(shi)(shi)鋼的(de)基體與片狀石墨的(de)夾雜。因此石墨片越少(shao),越細,為了保證鑄(zhu)(zhu)(zhu)鐵(tie)在澆鑄(zhu)(zhu)(zhu)能(neng)夠(gou)得到灰口,且不至(zhi)于(yu)得到過多和粗(cu)大的(de)石墨片,這里所(suo)說(shuo)的(de)工(gong)(gong)作面(mian)小(xiao)范圍,對小(xiao)鑄(zhu)(zhu)(zhu)鐵(tie)平(ping)板(ban)而言(yan)是(shi)(shi)局(ju)部(bu)(bu)位(wei)置,對大鑄(zhu)(zhu)(zhu)鐵(tie)平(ping)板(ban)而言(yan)是(shi)(shi)局(ju)部(bu)(bu)面(mian)積。鑄(zhu)(zhu)(zhu)鐵(tie)平(ping)板(ban)的(de)平(ping)整性(xing)反(fan)映了鑄(zhu)(zhu)(zhu)鐵(tie)平(ping)板(ban)局(ju)部(bu)(bu)誤差(cha)鑄(zhu)(zhu)(zhu)鐵(tie)平(ping)板(ban)的(de)局(ju)部(bu)(bu)誤差(cha)是(shi)(shi)指(zhi)鑄(zhu)(zhu)(zhu)鐵(tie)平(ping)板(ban)工(gong)(gong)作面(mian)局(ju)部(bu)(bu)平(ping)面(mian)度(du)加工(gong)(gong)質量,即表面(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間里(li),造(zao)(zao)(zao)型(xing)(xing)(xing)造(zao)(zao)(zao)芯都實現(xian)了機(ji)械化或自(zi)動化。常(chang)用的砂型(xing)(xing)(xing)造(zao)(zao)(zao)型(xing)(xing)(xing)造(zao)(zao)(zao)芯設備有高、中、低壓造(zao)(zao)(zao)型(xing)(xing)(xing)機(ji)、拋砂機(ji)、無箱射壓造(zao)(zao)(zao)型(xing)(xing)(xing)機(ji)、射芯機(ji)、冷和熱芯盒機(ji)等。
叉車配重鐵(tie)(tie)(tie)(tie)(tie)(tie)工(gong)藝(yi)可分為三個基(ji)本(ben)部分,即(ji)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)金(jin)(jin)屬(shu)(shu)(shu)準(zhun)(zhun)備、鑄(zhu)型(xing)準(zhun)(zhun)備和鑄(zhu)件(jian)處理。 配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)金(jin)(jin)屬(shu)(shu)(shu)是指配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)生產中用于(yu)澆(jiao)注鑄(zhu)件(jian)的(de)(de)金(jin)(jin)屬(shu)(shu)(shu)材(cai)料,它是以一種金(jin)(jin)屬(shu)(shu)(shu)元素(su)為主(zhu)(zhu)要成(cheng)分,并加入其他金(jin)(jin)屬(shu)(shu)(shu)或非金(jin)(jin)屬(shu)(shu)(shu)元素(su)而組成(cheng)的(de)(de)合(he)金(jin)(jin),習慣上稱(cheng)為配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)合(he)金(jin)(jin),主(zhu)(zhu)要有(you)鑄(zhu)鐵(tie)(tie)(tie)(tie)(tie)(tie)、鑄(zhu)鋼和配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)有(you)色合(he)金(jin)(jin)。叉車(che)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)按(an)造型(xing)材(cai)料的(de)(de)不同,又可分為兩大類:一類以天然礦產砂石作為主(zhu)(zhu)要造型(xing)材(cai)料,如(ru)熔模配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、殼(ke)型(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、負壓(ya)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、泥型(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、實(shi)型(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、陶瓷型(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)等;一類以金(jin)(jin)屬(shu)(shu)(shu)作為主(zhu)(zhu)要鑄(zhu)型(xing)材(cai)料,如(ru)金(jin)(jin)屬(shu)(shu)(shu)型(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、離(li)心配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、連續(xu)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、叉車(che)配(pei)(pei)(pei)件(jian)鐵(tie)(tie)(tie)(tie)(tie)(tie)、低(di)壓(ya)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)等。
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