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鑄鐵配重塊是(shi)用于增加自身重(zhong)量來保持(chi)平衡的重(zhong)物,是(shi)將噴丸機熔(rong)煉(lian)成符合 要求的液體并澆進鑄型里,經冷卻(que)凝固、清整處(chu)理后(hou)得到有預(yu)定(ding)形(xing)狀、尺寸和性(xing)能(neng)的鑄件的工藝(yi)過程。現代機械制造工業的基礎工藝(yi)之(zhi)一。
工(gong)作面(mian)(mian)(mian)小(xiao)范(fan)圍(wei)(wei)內的(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(zheng),有變(bian)形,灰(hui)口鐵(tie)可以看作是鋼的(de)基體與片狀(zhuang)石墨的(de)夾雜。因(yin)此石墨片越少,越細,為(wei)了保證鑄(zhu)鐵(tie)在(zai)澆鑄(zhu)能夠(gou)得(de)到灰(hui)口,且不至于(yu)得(de)到過多和粗大的(de)石墨片,這里(li)所說(shuo)的(de)工(gong)作面(mian)(mian)(mian)小(xiao)范(fan)圍(wei)(wei),對小(xiao)鑄(zhu)鐵(tie)平(ping)(ping)(ping)板(ban)(ban)(ban)而(er)言是局(ju)部(bu)位置,對大鑄(zhu)鐵(tie)平(ping)(ping)(ping)板(ban)(ban)(ban)而(er)言是局(ju)部(bu)面(mian)(mian)(mian)積。鑄(zhu)鐵(tie)平(ping)(ping)(ping)板(ban)(ban)(ban)的(de)平(ping)(ping)(ping)整(zheng)性反映了鑄(zhu)鐵(tie)平(ping)(ping)(ping)板(ban)(ban)(ban)局(ju)部(bu)誤差(cha)鑄(zhu)鐵(tie)平(ping)(ping)(ping)板(ban)(ban)(ban)的(de)局(ju)部(bu)誤差(cha)是指鑄(zhu)鐵(tie)平(ping)(ping)(ping)板(ban)(ban)(ban)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(ji)表面(mian)(mian)(mian)粗糙度。
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里,造(zao)型造(zao)芯(xin)都實現了機(ji)械化或自動(dong)化。常(chang)用的砂型造(zao)型造(zao)芯(xin)設備有(you)高、中、低壓(ya)造(zao)型機(ji)、拋砂機(ji)、無箱射壓(ya)造(zao)型機(ji)、射芯(xin)機(ji)、冷(leng)和熱芯(xin)盒機(ji)等。
叉車配重鐵(tie)(tie)(tie)(tie)(tie)(tie)工(gong)藝可(ke)分為(wei)(wei)(wei)三個基(ji)本部分,即配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)金(jin)(jin)(jin)(jin)(jin)屬(shu)(shu)準備(bei)、鑄(zhu)(zhu)型準備(bei)和(he)鑄(zhu)(zhu)件(jian)處(chu)理。 配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)金(jin)(jin)(jin)(jin)(jin)屬(shu)(shu)是指配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)生產中用于澆注鑄(zhu)(zhu)件(jian)的(de)(de)金(jin)(jin)(jin)(jin)(jin)屬(shu)(shu)材(cai)料,它是以一種金(jin)(jin)(jin)(jin)(jin)屬(shu)(shu)元(yuan)素為(wei)(wei)(wei)主(zhu)要(yao)(yao)成分,并加入其他金(jin)(jin)(jin)(jin)(jin)屬(shu)(shu)或非金(jin)(jin)(jin)(jin)(jin)屬(shu)(shu)元(yuan)素而組成的(de)(de)合金(jin)(jin)(jin)(jin)(jin),習慣上(shang)稱(cheng)為(wei)(wei)(wei)配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)合金(jin)(jin)(jin)(jin)(jin),主(zhu)要(yao)(yao)有鑄(zhu)(zhu)鐵(tie)(tie)(tie)(tie)(tie)(tie)、鑄(zhu)(zhu)鋼和(he)配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)有色合金(jin)(jin)(jin)(jin)(jin)。叉車配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)按造型材(cai)料的(de)(de)不(bu)同,又(you)可(ke)分為(wei)(wei)(wei)兩大(da)類(lei)(lei):一類(lei)(lei)以天(tian)然礦產砂石作(zuo)為(wei)(wei)(wei)主(zhu)要(yao)(yao)造型材(cai)料,如熔模配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、殼型配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、負壓配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、泥型配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、實型配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、陶瓷型配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)等(deng);一類(lei)(lei)以金(jin)(jin)(jin)(jin)(jin)屬(shu)(shu)作(zuo)為(wei)(wei)(wei)主(zhu)要(yao)(yao)鑄(zhu)(zhu)型材(cai)料,如金(jin)(jin)(jin)(jin)(jin)屬(shu)(shu)型配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、離心(xin)配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、連續配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、叉車配(pei)(pei)件(jian)鐵(tie)(tie)(tie)(tie)(tie)(tie)、低(di)壓配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)等(deng)。
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