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鑄鐵配重塊是(shi)用于增加自身重量(liang)來保持平衡的(de)(de)(de)重物,是(shi)將噴丸機(ji)(ji)熔煉成符合 要求的(de)(de)(de)液體(ti)并澆進鑄型(xing)里,經冷卻(que)凝固(gu)、清整處理(li)后得到(dao)有(you)預定形狀、尺寸和性能的(de)(de)(de)鑄件的(de)(de)(de)工(gong)藝過(guo)程(cheng)。現代機(ji)(ji)械(xie)制造(zao)工(gong)業的(de)(de)(de)基礎工(gong)藝之一。
工作(zuo)面(mian)(mian)(mian)小范(fan)(fan)圍內的(de)局部(bu)變化是指(zhi)加工表面(mian)(mian)(mian)不平整,有變形(xing),灰(hui)口(kou)鐵(tie)(tie)可以看作(zuo)是鋼的(de)基體與(yu)片狀石(shi)(shi)墨(mo)的(de)夾(jia)雜。因此石(shi)(shi)墨(mo)片越少,越細,為了保證鑄鐵(tie)(tie)在澆鑄能夠得(de)到灰(hui)口(kou),且不至(zhi)于得(de)到過多和粗(cu)大的(de)石(shi)(shi)墨(mo)片,這里(li)所說的(de)工作(zuo)面(mian)(mian)(mian)小范(fan)(fan)圍,對(dui)小鑄鐵(tie)(tie)平板(ban)而言是局部(bu)位置(zhi),對(dui)大鑄鐵(tie)(tie)平板(ban)而言是局部(bu)面(mian)(mian)(mian)積。鑄鐵(tie)(tie)平板(ban)的(de)平整性(xing)反映了鑄鐵(tie)(tie)平板(ban)局部(bu)誤(wu)(wu)差鑄鐵(tie)(tie)平板(ban)的(de)局部(bu)誤(wu)(wu)差是指(zhi)鑄鐵(tie)(tie)平板(ban)工作(zuo)面(mian)(mian)(mian)局部(bu)平面(mian)(mian)(mian)度加工質量,即表面(mian)(mian)(mian)粗(cu)糙度。
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(xing)(xing)(xing)造(zao)(zao)芯都(dou)實現了(le)機(ji)械化或自動化。常用的砂(sha)型(xing)(xing)(xing)造(zao)(zao)型(xing)(xing)(xing)造(zao)(zao)芯設備有高(gao)、中、低壓(ya)造(zao)(zao)型(xing)(xing)(xing)機(ji)、拋砂(sha)機(ji)、無箱射(she)(she)壓(ya)造(zao)(zao)型(xing)(xing)(xing)機(ji)、射(she)(she)芯機(ji)、冷和熱芯盒機(ji)等(deng)。
叉車配重鐵(tie)(tie)工藝可分(fen)為(wei)(wei)三(san)個基本部分(fen),即配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)金(jin)(jin)(jin)屬(shu)(shu)(shu)準備、鑄(zhu)型準備和鑄(zhu)件處(chu)理。 配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)金(jin)(jin)(jin)屬(shu)(shu)(shu)是(shi)指配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)生產(chan)中用于(yu)澆注鑄(zhu)件的金(jin)(jin)(jin)屬(shu)(shu)(shu)材(cai)(cai)料,它是(shi)以(yi)一種金(jin)(jin)(jin)屬(shu)(shu)(shu)元素為(wei)(wei)主(zhu)要(yao)成分(fen),并加(jia)入其他(ta)金(jin)(jin)(jin)屬(shu)(shu)(shu)或非金(jin)(jin)(jin)屬(shu)(shu)(shu)元素而組(zu)成的合(he)(he)金(jin)(jin)(jin),習慣上(shang)稱為(wei)(wei)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)合(he)(he)金(jin)(jin)(jin),主(zhu)要(yao)有鑄(zhu)鐵(tie)(tie)、鑄(zhu)鋼和配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)有色(se)合(he)(he)金(jin)(jin)(jin)。叉(cha)車配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)按(an)造型材(cai)(cai)料的不同,又可分(fen)為(wei)(wei)兩大(da)類(lei):一類(lei)以(yi)天(tian)然礦產(chan)砂石作(zuo)為(wei)(wei)主(zhu)要(yao)造型材(cai)(cai)料,如熔模配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、殼(ke)型配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、負壓配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、泥型配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、實型配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、陶(tao)瓷型配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)等;一類(lei)以(yi)金(jin)(jin)(jin)屬(shu)(shu)(shu)作(zuo)為(wei)(wei)主(zhu)要(yao)鑄(zhu)型材(cai)(cai)料,如金(jin)(jin)(jin)屬(shu)(shu)(shu)型配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、離心配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、連續配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、叉(cha)車配(pei)(pei)(pei)(pei)(pei)件鐵(tie)(tie)、低壓配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)等。
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