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鑄鐵配重塊是(shi)用于增加(jia)自身重(zhong)量來保持(chi)平衡的(de)重(zhong)物,是(shi)將(jiang)噴丸機(ji)熔煉成符(fu)合 要求(qiu)的(de)液體(ti)并澆進鑄型(xing)里,經冷卻(que)凝固(gu)、清整處理后得到有預定(ding)形狀、尺寸和性能的(de)鑄件(jian)的(de)工藝過程。現代機(ji)械制造(zao)工業的(de)基(ji)礎工藝之一。
工(gong)(gong)(gong)作面(mian)(mian)小范圍內的(de)(de)(de)局(ju)部(bu)變化是(shi)(shi)指加工(gong)(gong)(gong)表(biao)面(mian)(mian)不平(ping)(ping)(ping)整(zheng),有變形,灰口鐵(tie)(tie)可以看作是(shi)(shi)鋼的(de)(de)(de)基(ji)體與片狀石墨的(de)(de)(de)夾雜。因此石墨片越(yue)少,越(yue)細(xi),為了保(bao)證鑄(zhu)(zhu)(zhu)鐵(tie)(tie)在澆鑄(zhu)(zhu)(zhu)能夠得到灰口,且(qie)不至(zhi)于得到過多和粗大(da)的(de)(de)(de)石墨片,這里所說的(de)(de)(de)工(gong)(gong)(gong)作面(mian)(mian)小范圍,對(dui)小鑄(zhu)(zhu)(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)(ban)而言(yan)是(shi)(shi)局(ju)部(bu)位置,對(dui)大(da)鑄(zhu)(zhu)(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)(ban)而言(yan)是(shi)(shi)局(ju)部(bu)面(mian)(mian)積。鑄(zhu)(zhu)(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)(ban)的(de)(de)(de)平(ping)(ping)(ping)整(zheng)性(xing)反(fan)映了鑄(zhu)(zhu)(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)(ban)局(ju)部(bu)誤(wu)差鑄(zhu)(zhu)(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)(ban)的(de)(de)(de)局(ju)部(bu)誤(wu)差是(shi)(shi)指鑄(zhu)(zhu)(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)(ban)工(gong)(gong)(gong)作面(mian)(mian)局(ju)部(bu)平(ping)(ping)(ping)面(mian)(mian)度(du)加工(gong)(gong)(gong)質量,即表(biao)面(mian)(mian)粗糙(cao)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)造(zao)芯(xin)都(dou)實現了機(ji)械化(hua)或自動(dong)化(hua)。常用的(de)砂(sha)型(xing)造(zao)型(xing)造(zao)芯(xin)設備有高、中、低壓造(zao)型(xing)機(ji)、拋砂(sha)機(ji)、無(wu)箱(xiang)射壓造(zao)型(xing)機(ji)、射芯(xin)機(ji)、冷和熱芯(xin)盒(he)機(ji)等。
叉車配重鐵(tie)(tie)(tie)(tie)工(gong)藝可(ke)分(fen)(fen)為(wei)(wei)三個基本部分(fen)(fen),即配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)金(jin)(jin)(jin)屬(shu)(shu)準備、鑄(zhu)型(xing)(xing)準備和鑄(zhu)件(jian)處理。 配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)金(jin)(jin)(jin)屬(shu)(shu)是指配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)生產(chan)中(zhong)用于澆注鑄(zhu)件(jian)的(de)(de)金(jin)(jin)(jin)屬(shu)(shu)材料(liao),它是以(yi)一種金(jin)(jin)(jin)屬(shu)(shu)元素為(wei)(wei)主(zhu)(zhu)要成分(fen)(fen),并加(jia)入(ru)其他金(jin)(jin)(jin)屬(shu)(shu)或非金(jin)(jin)(jin)屬(shu)(shu)元素而組(zu)成的(de)(de)合金(jin)(jin)(jin),習(xi)慣上稱為(wei)(wei)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)合金(jin)(jin)(jin),主(zhu)(zhu)要有鑄(zhu)鐵(tie)(tie)(tie)(tie)、鑄(zhu)鋼和配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)有色合金(jin)(jin)(jin)。叉車配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)按造(zao)型(xing)(xing)材料(liao)的(de)(de)不同,又可(ke)分(fen)(fen)為(wei)(wei)兩大(da)類(lei):一類(lei)以(yi)天然礦產(chan)砂石(shi)作為(wei)(wei)主(zhu)(zhu)要造(zao)型(xing)(xing)材料(liao),如熔模(mo)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、殼型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、負壓配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、泥(ni)型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、實型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、陶瓷型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)等;一類(lei)以(yi)金(jin)(jin)(jin)屬(shu)(shu)作為(wei)(wei)主(zhu)(zhu)要鑄(zhu)型(xing)(xing)材料(liao),如金(jin)(jin)(jin)屬(shu)(shu)型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、離心(xin)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、連續配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、叉車配(pei)(pei)(pei)件(jian)鐵(tie)(tie)(tie)(tie)、低壓配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)等。
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