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鑄鐵配重塊是(shi)用于(yu)增加自身重量來保(bao)持平(ping)衡的重物,是(shi)將噴丸機熔(rong)煉(lian)成(cheng)符合(he) 要求的液(ye)體并澆(jiao)進鑄型里,經(jing)冷卻凝固、清整處理后得到(dao)有預定形狀、尺寸和性能(neng)的鑄件的工(gong)藝過程。現代機械制造(zao)工(gong)業的基礎(chu)工(gong)藝之一。
工作(zuo)(zuo)面(mian)(mian)(mian)小(xiao)范圍內(nei)的(de)(de)(de)(de)局(ju)部(bu)變化是(shi)指加工表(biao)面(mian)(mian)(mian)不(bu)平(ping)(ping)整(zheng),有變形(xing),灰(hui)口(kou)鐵(tie)可以看作(zuo)(zuo)是(shi)鋼的(de)(de)(de)(de)基(ji)體與片狀(zhuang)石(shi)墨(mo)的(de)(de)(de)(de)夾雜。因此(ci)石(shi)墨(mo)片越少,越細,為了保證鑄(zhu)鐵(tie)在澆(jiao)鑄(zhu)能夠(gou)得(de)到(dao)灰(hui)口(kou),且不(bu)至于得(de)到(dao)過多和粗(cu)大的(de)(de)(de)(de)石(shi)墨(mo)片,這里所(suo)說(shuo)的(de)(de)(de)(de)工作(zuo)(zuo)面(mian)(mian)(mian)小(xiao)范圍,對小(xiao)鑄(zhu)鐵(tie)平(ping)(ping)板(ban)而言是(shi)局(ju)部(bu)位置,對大鑄(zhu)鐵(tie)平(ping)(ping)板(ban)而言是(shi)局(ju)部(bu)面(mian)(mian)(mian)積。鑄(zhu)鐵(tie)平(ping)(ping)板(ban)的(de)(de)(de)(de)平(ping)(ping)整(zheng)性(xing)反映了鑄(zhu)鐵(tie)平(ping)(ping)板(ban)局(ju)部(bu)誤差鑄(zhu)鐵(tie)平(ping)(ping)板(ban)的(de)(de)(de)(de)局(ju)部(bu)誤差是(shi)指鑄(zhu)鐵(tie)平(ping)(ping)板(ban)工作(zuo)(zuo)面(mian)(mian)(mian)局(ju)部(bu)平(ping)(ping)面(mian)(mian)(mian)度加工質量,即表(biao)面(mian)(mian)(mian)粗(cu)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)(zao)型造(zao)(zao)芯(xin)(xin)都實現了(le)機械化或自(zi)動(dong)化。常用的砂型造(zao)(zao)型造(zao)(zao)芯(xin)(xin)設備有高、中、低(di)壓造(zao)(zao)型機、拋砂機、無箱射(she)壓造(zao)(zao)型機、射(she)芯(xin)(xin)機、冷和熱芯(xin)(xin)盒機等。
叉車配重鐵(tie)(tie)(tie)工藝可分為(wei)(wei)(wei)(wei)三個基本(ben)部分,即配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)金(jin)(jin)(jin)屬準備、鑄型(xing)(xing)準備和鑄件處理(li)。 配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)金(jin)(jin)(jin)屬是指配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)生(sheng)產(chan)中用于澆注鑄件的金(jin)(jin)(jin)屬材(cai)料(liao),它(ta)是以(yi)(yi)一種金(jin)(jin)(jin)屬元素為(wei)(wei)(wei)(wei)主要成(cheng)(cheng)分,并加入(ru)其他金(jin)(jin)(jin)屬或非(fei)金(jin)(jin)(jin)屬元素而組成(cheng)(cheng)的合金(jin)(jin)(jin),習(xi)慣上稱為(wei)(wei)(wei)(wei)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)合金(jin)(jin)(jin),主要有鑄鐵(tie)(tie)(tie)、鑄鋼和配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)有色合金(jin)(jin)(jin)。叉車(che)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)按(an)造型(xing)(xing)材(cai)料(liao)的不同,又可分為(wei)(wei)(wei)(wei)兩大類(lei):一類(lei)以(yi)(yi)天然礦產(chan)砂石作(zuo)為(wei)(wei)(wei)(wei)主要造型(xing)(xing)材(cai)料(liao),如(ru)熔模配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、殼(ke)型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、負壓配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、泥(ni)型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、實型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、陶瓷型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)等(deng)(deng);一類(lei)以(yi)(yi)金(jin)(jin)(jin)屬作(zuo)為(wei)(wei)(wei)(wei)主要鑄型(xing)(xing)材(cai)料(liao),如(ru)金(jin)(jin)(jin)屬型(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(xu)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、叉車(che)配(pei)(pei)(pei)件鐵(tie)(tie)(tie)、低壓配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)等(deng)(deng)。
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