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鑄鐵配重塊是用于增加自身重(zhong)(zhong)量來保持平衡的重(zhong)(zhong)物,是將(jiang)噴丸機熔煉(lian)成符合 要求(qiu)的液體并澆進鑄(zhu)型里(li),經冷(leng)卻凝(ning)固、清整處理(li)后得到有預定形(xing)狀、尺(chi)寸和性能的鑄(zhu)件的工(gong)藝過(guo)程。現(xian)代(dai)機械制造工(gong)業(ye)的基礎工(gong)藝之一。
工(gong)作(zuo)面(mian)(mian)(mian)(mian)小(xiao)范(fan)圍內(nei)的(de)局部(bu)變化是(shi)(shi)指(zhi)(zhi)加(jia)(jia)工(gong)表面(mian)(mian)(mian)(mian)不平(ping)(ping)(ping)整,有(you)變形,灰口鐵(tie)可(ke)以看作(zuo)是(shi)(shi)鋼的(de)基體(ti)與(yu)片狀石墨的(de)夾雜。因此石墨片越少,越細,為了保證鑄(zhu)鐵(tie)在澆鑄(zhu)能夠得(de)到灰口,且不至于得(de)到過多和粗大的(de)石墨片,這里(li)所說(shuo)的(de)工(gong)作(zuo)面(mian)(mian)(mian)(mian)小(xiao)范(fan)圍,對(dui)小(xiao)鑄(zhu)鐵(tie)平(ping)(ping)(ping)板(ban)(ban)而言是(shi)(shi)局部(bu)位置,對(dui)大鑄(zhu)鐵(tie)平(ping)(ping)(ping)板(ban)(ban)而言是(shi)(shi)局部(bu)面(mian)(mian)(mian)(mian)積。鑄(zhu)鐵(tie)平(ping)(ping)(ping)板(ban)(ban)的(de)平(ping)(ping)(ping)整性反映了鑄(zhu)鐵(tie)平(ping)(ping)(ping)板(ban)(ban)局部(bu)誤差(cha)鑄(zhu)鐵(tie)平(ping)(ping)(ping)板(ban)(ban)的(de)局部(bu)誤差(cha)是(shi)(shi)指(zhi)(zhi)鑄(zhu)鐵(tie)平(ping)(ping)(ping)板(ban)(ban)工(gong)作(zuo)面(mian)(mian)(mian)(mian)局部(bu)平(ping)(ping)(ping)面(mian)(mian)(mian)(mian)度加(jia)(jia)工(gong)質量,即表面(mian)(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里(li),造(zao)型(xing)造(zao)芯(xin)(xin)都實現了機(ji)(ji)械化或自(zi)動化。常用的砂型(xing)造(zao)型(xing)造(zao)芯(xin)(xin)設備(bei)有高、中、低壓(ya)造(zao)型(xing)機(ji)(ji)、拋砂機(ji)(ji)、無箱射壓(ya)造(zao)型(xing)機(ji)(ji)、射芯(xin)(xin)機(ji)(ji)、冷和(he)熱(re)芯(xin)(xin)盒機(ji)(ji)等。
叉車配重鐵(tie)(tie)(tie)(tie)工藝可分為(wei)(wei)三個(ge)基(ji)本部分,即配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)金(jin)(jin)(jin)屬(shu)(shu)準備、鑄(zhu)(zhu)型準備和鑄(zhu)(zhu)件(jian)處理(li)。 配(pei)(pei)(pei)重(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)鐵(tie)(tie)(tie)(tie)生產中用于澆注鑄(zhu)(zhu)件(jian)的金(jin)(jin)(jin)屬(shu)(shu)材(cai)料,它是以(yi)一種金(jin)(jin)(jin)屬(shu)(shu)元素為(wei)(wei)主要成分,并加入(ru)其他金(jin)(jin)(jin)屬(shu)(shu)或非(fei)金(jin)(jin)(jin)屬(shu)(shu)元素而組成的合(he)金(jin)(jin)(jin),習慣上稱為(wei)(wei)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)合(he)金(jin)(jin)(jin),主要有鑄(zhu)(zhu)鐵(tie)(tie)(tie)(tie)、鑄(zhu)(zhu)鋼和配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)有色合(he)金(jin)(jin)(jin)。叉(cha)車配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)按(an)造(zao)型材(cai)料的不同(tong),又可分為(wei)(wei)兩大類:一類以(yi)天然礦產砂石(shi)作為(wei)(wei)主要造(zao)型材(cai)料,如熔模配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、殼型配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、負(fu)壓配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、泥型配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、實型配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、陶(tao)瓷型配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)等;一類以(yi)金(jin)(jin)(jin)屬(shu)(shu)作為(wei)(wei)主要鑄(zhu)(zhu)型材(cai)料,如金(jin)(jin)(jin)屬(shu)(shu)型配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、離(li)心配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、連續配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、叉(cha)車配(pei)(pei)(pei)件(jian)鐵(tie)(tie)(tie)(tie)、低壓配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)等。
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