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鑄鐵配重塊是(shi)用于增加自身重量來(lai)保持平衡的(de)(de)重物(wu),是(shi)將(jiang)噴丸(wan)機熔煉成符(fu)合 要求的(de)(de)液(ye)體并澆進(jin)鑄型里,經冷卻凝固(gu)、清整處理(li)后得到有(you)預定形狀、尺寸和(he)性能的(de)(de)鑄件的(de)(de)工(gong)藝過程。現代(dai)機械制(zhi)造(zao)工(gong)業的(de)(de)基礎工(gong)藝之一(yi)。
工作(zuo)面(mian)小范圍內的(de)(de)局(ju)(ju)(ju)部(bu)(bu)(bu)變(bian)(bian)化是指加工表(biao)面(mian)不平(ping)整(zheng),有(you)變(bian)(bian)形(xing),灰口(kou)鐵可以看作(zuo)是鋼的(de)(de)基體(ti)與(yu)片狀石(shi)(shi)(shi)墨的(de)(de)夾(jia)雜。因(yin)此(ci)石(shi)(shi)(shi)墨片越(yue)少(shao),越(yue)細(xi),為了保證鑄(zhu)(zhu)鐵在(zai)澆鑄(zhu)(zhu)能夠得到(dao)灰口(kou),且不至于得到(dao)過多(duo)和粗(cu)大的(de)(de)石(shi)(shi)(shi)墨片,這里所說的(de)(de)工作(zuo)面(mian)小范圍,對小鑄(zhu)(zhu)鐵平(ping)板(ban)而(er)(er)言(yan)(yan)是局(ju)(ju)(ju)部(bu)(bu)(bu)位置(zhi),對大鑄(zhu)(zhu)鐵平(ping)板(ban)而(er)(er)言(yan)(yan)是局(ju)(ju)(ju)部(bu)(bu)(bu)面(mian)積。鑄(zhu)(zhu)鐵平(ping)板(ban)的(de)(de)平(ping)整(zheng)性反映了鑄(zhu)(zhu)鐵平(ping)板(ban)局(ju)(ju)(ju)部(bu)(bu)(bu)誤差鑄(zhu)(zhu)鐵平(ping)板(ban)的(de)(de)局(ju)(ju)(ju)部(bu)(bu)(bu)誤差是指鑄(zhu)(zhu)鐵平(ping)板(ban)工作(zuo)面(mian)局(ju)(ju)(ju)部(bu)(bu)(bu)平(ping)面(mian)度(du)加工質(zhi)量(liang),即(ji)表(biao)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)型(xing)造(zao)(zao)芯都實(shi)現了機(ji)(ji)械化(hua)或自動化(hua)。常(chang)用的砂型(xing)造(zao)(zao)型(xing)造(zao)(zao)芯設(she)備(bei)有高、中、低壓造(zao)(zao)型(xing)機(ji)(ji)、拋砂機(ji)(ji)、無箱射壓造(zao)(zao)型(xing)機(ji)(ji)、射芯機(ji)(ji)、冷和熱芯盒(he)機(ji)(ji)等。
叉車配重鐵(tie)(tie)(tie)(tie)(tie)工(gong)藝可分為(wei)(wei)三(san)個基(ji)本(ben)部分,即配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)金屬(shu)(shu)(shu)(shu)準備(bei)、鑄型(xing)(xing)(xing)(xing)準備(bei)和鑄件(jian)處理。 配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)金屬(shu)(shu)(shu)(shu)是指(zhi)配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)生產中用于澆注鑄件(jian)的金屬(shu)(shu)(shu)(shu)材料(liao),它(ta)是以一種金屬(shu)(shu)(shu)(shu)元素為(wei)(wei)主要(yao)成(cheng)分,并(bing)加入其(qi)他金屬(shu)(shu)(shu)(shu)或(huo)非金屬(shu)(shu)(shu)(shu)元素而(er)組成(cheng)的合(he)金,習慣(guan)上稱為(wei)(wei)配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)合(he)金,主要(yao)有鑄鐵(tie)(tie)(tie)(tie)(tie)、鑄鋼(gang)和配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)有色(se)合(he)金。叉(cha)車配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)按造(zao)型(xing)(xing)(xing)(xing)材料(liao)的不同,又可分為(wei)(wei)兩(liang)大類:一類以天然(ran)礦(kuang)產砂石作為(wei)(wei)主要(yao)造(zao)型(xing)(xing)(xing)(xing)材料(liao),如(ru)熔模(mo)配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、殼型(xing)(xing)(xing)(xing)配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、負壓配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、泥型(xing)(xing)(xing)(xing)配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、實型(xing)(xing)(xing)(xing)配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、陶瓷型(xing)(xing)(xing)(xing)配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)等(deng);一類以金屬(shu)(shu)(shu)(shu)作為(wei)(wei)主要(yao)鑄型(xing)(xing)(xing)(xing)材料(liao),如(ru)金屬(shu)(shu)(shu)(shu)型(xing)(xing)(xing)(xing)配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、離心配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、連(lian)續配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、叉(cha)車配(pei)件(jian)鐵(tie)(tie)(tie)(tie)(tie)、低壓配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)等(deng)。
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