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鑄鐵配重塊是用于增加(jia)自身重量(liang)來保持平衡的(de)重物(wu),是將(jiang)噴丸機(ji)熔煉成符(fu)合 要求的(de)液體并澆進鑄(zhu)型(xing)里,經冷卻凝固、清整處理后得到有預定形狀、尺寸和(he)性能(neng)的(de)鑄(zhu)件的(de)工藝(yi)(yi)過程。現代(dai)機(ji)械制造工業的(de)基(ji)礎工藝(yi)(yi)之一。
工(gong)作面(mian)(mian)(mian)小范(fan)圍內的(de)(de)(de)局(ju)部(bu)變(bian)化是指加(jia)工(gong)表面(mian)(mian)(mian)不平(ping)(ping)(ping)整,有變(bian)形,灰口(kou)鐵(tie)可以看作是鋼(gang)的(de)(de)(de)基(ji)體與片狀石墨的(de)(de)(de)夾雜(za)。因此(ci)石墨片越(yue)少,越(yue)細,為了保證鑄(zhu)鐵(tie)在澆鑄(zhu)能(neng)夠得到(dao)灰口(kou),且不至于得到(dao)過多和粗大的(de)(de)(de)石墨片,這(zhe)里所說的(de)(de)(de)工(gong)作面(mian)(mian)(mian)小范(fan)圍,對小鑄(zhu)鐵(tie)平(ping)(ping)(ping)板而言是局(ju)部(bu)位置,對大鑄(zhu)鐵(tie)平(ping)(ping)(ping)板而言是局(ju)部(bu)面(mian)(mian)(mian)積。鑄(zhu)鐵(tie)平(ping)(ping)(ping)板的(de)(de)(de)平(ping)(ping)(ping)整性(xing)反(fan)映了鑄(zhu)鐵(tie)平(ping)(ping)(ping)板局(ju)部(bu)誤差(cha)鑄(zhu)鐵(tie)平(ping)(ping)(ping)板的(de)(de)(de)局(ju)部(bu)誤差(cha)是指鑄(zhu)鐵(tie)平(ping)(ping)(ping)板工(gong)作面(mian)(mian)(mian)局(ju)部(bu)平(ping)(ping)(ping)面(mian)(mian)(mian)度加(jia)工(gong)質量,即表面(mian)(mian)(mian)粗糙(cao)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(jian)里,造(zao)型(xing)(xing)造(zao)芯都實現了機(ji)械化(hua)或自動化(hua)。常用(yong)的(de)砂型(xing)(xing)造(zao)型(xing)(xing)造(zao)芯設備有(you)高、中、低(di)壓造(zao)型(xing)(xing)機(ji)、拋砂機(ji)、無箱射(she)壓造(zao)型(xing)(xing)機(ji)、射(she)芯機(ji)、冷(leng)和熱芯盒(he)機(ji)等(deng)。
叉車配重鐵(tie)(tie)(tie)工藝可分(fen)為(wei)(wei)(wei)三(san)個基本部分(fen),即(ji)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)金(jin)(jin)屬(shu)準(zhun)備(bei)(bei)、鑄(zhu)(zhu)型(xing)(xing)(xing)(xing)準(zhun)備(bei)(bei)和鑄(zhu)(zhu)件處理。 配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)金(jin)(jin)屬(shu)是指配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)生產(chan)中用(yong)于澆注鑄(zhu)(zhu)件的(de)(de)金(jin)(jin)屬(shu)材(cai)料(liao)(liao),它(ta)是以一種金(jin)(jin)屬(shu)元(yuan)(yuan)素為(wei)(wei)(wei)主(zhu)要成分(fen),并加入其他金(jin)(jin)屬(shu)或非金(jin)(jin)屬(shu)元(yuan)(yuan)素而組(zu)成的(de)(de)合金(jin)(jin),習慣上稱為(wei)(wei)(wei)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)合金(jin)(jin),主(zhu)要有鑄(zhu)(zhu)鐵(tie)(tie)(tie)、鑄(zhu)(zhu)鋼和配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)有色(se)合金(jin)(jin)。叉車配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)按造型(xing)(xing)(xing)(xing)材(cai)料(liao)(liao)的(de)(de)不同,又(you)可分(fen)為(wei)(wei)(wei)兩大(da)類:一類以天然礦產(chan)砂石作(zuo)為(wei)(wei)(wei)主(zhu)要造型(xing)(xing)(xing)(xing)材(cai)料(liao)(liao),如熔模配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、殼型(xing)(xing)(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、負壓(ya)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、泥型(xing)(xing)(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、實型(xing)(xing)(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、陶(tao)瓷型(xing)(xing)(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)等(deng)(deng);一類以金(jin)(jin)屬(shu)作(zuo)為(wei)(wei)(wei)主(zhu)要鑄(zhu)(zhu)型(xing)(xing)(xing)(xing)材(cai)料(liao)(liao),如金(jin)(jin)屬(shu)型(xing)(xing)(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、離心配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、連續配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、叉車配(pei)(pei)(pei)件鐵(tie)(tie)(tie)、低壓(ya)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)等(deng)(deng)。
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