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鑄鐵配重塊是用于增加(jia)自身重(zhong)量來保持平衡(heng)的(de)(de)重(zhong)物,是將噴(pen)丸機熔(rong)煉成符合 要求的(de)(de)液體并澆進鑄型里,經冷(leng)卻凝固(gu)、清整處理后得到有預定形(xing)狀、尺寸和性(xing)能的(de)(de)鑄件的(de)(de)工藝過程(cheng)。現(xian)代機械(xie)制造工業的(de)(de)基礎工藝之一(yi)。
工(gong)作面(mian)(mian)小(xiao)(xiao)范圍內的(de)局(ju)部(bu)(bu)變化(hua)是(shi)指加(jia)工(gong)表(biao)面(mian)(mian)不平(ping)(ping)(ping)(ping)整(zheng),有變形,灰口(kou)鐵(tie)(tie)可以看作是(shi)鋼的(de)基(ji)體與片(pian)狀(zhuang)石(shi)墨的(de)夾雜(za)。因此石(shi)墨片(pian)越少,越細,為了(le)保(bao)證(zheng)鑄(zhu)鐵(tie)(tie)在澆鑄(zhu)能夠得到灰口(kou),且不至于得到過(guo)多(duo)和粗(cu)(cu)大的(de)石(shi)墨片(pian),這里所說的(de)工(gong)作面(mian)(mian)小(xiao)(xiao)范圍,對小(xiao)(xiao)鑄(zhu)鐵(tie)(tie)平(ping)(ping)(ping)(ping)板(ban)(ban)而言是(shi)局(ju)部(bu)(bu)位(wei)置,對大鑄(zhu)鐵(tie)(tie)平(ping)(ping)(ping)(ping)板(ban)(ban)而言是(shi)局(ju)部(bu)(bu)面(mian)(mian)積。鑄(zhu)鐵(tie)(tie)平(ping)(ping)(ping)(ping)板(ban)(ban)的(de)平(ping)(ping)(ping)(ping)整(zheng)性反映了(le)鑄(zhu)鐵(tie)(tie)平(ping)(ping)(ping)(ping)板(ban)(ban)局(ju)部(bu)(bu)誤(wu)差(cha)鑄(zhu)鐵(tie)(tie)平(ping)(ping)(ping)(ping)板(ban)(ban)的(de)局(ju)部(bu)(bu)誤(wu)差(cha)是(shi)指鑄(zhu)鐵(tie)(tie)平(ping)(ping)(ping)(ping)板(ban)(ban)工(gong)作面(mian)(mian)局(ju)部(bu)(bu)平(ping)(ping)(ping)(ping)面(mian)(mian)度(du)加(jia)工(gong)質量,即(ji)表(biao)面(mian)(mian)粗(cu)(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,造(zao)(zao)型(xing)(xing)(xing)造(zao)(zao)芯都實現(xian)了機(ji)械化或自動化。常(chang)用的砂型(xing)(xing)(xing)造(zao)(zao)型(xing)(xing)(xing)造(zao)(zao)芯設(she)備有高、中、低(di)壓造(zao)(zao)型(xing)(xing)(xing)機(ji)、拋(pao)砂機(ji)、無箱射(she)壓造(zao)(zao)型(xing)(xing)(xing)機(ji)、射(she)芯機(ji)、冷和熱芯盒機(ji)等。
叉車配重鐵(tie)工藝可分(fen)為(wei)三個基本部分(fen),即配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)金(jin)屬(shu)準備、鑄(zhu)(zhu)型(xing)(xing)準備和鑄(zhu)(zhu)件處理。 配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)金(jin)屬(shu)是(shi)指配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)生產(chan)中用于澆注鑄(zhu)(zhu)件的(de)(de)金(jin)屬(shu)材料(liao),它是(shi)以(yi)一(yi)種金(jin)屬(shu)元素為(wei)主要成分(fen),并加入其他金(jin)屬(shu)或非金(jin)屬(shu)元素而組成的(de)(de)合金(jin),習慣上稱為(wei)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)合金(jin),主要有(you)鑄(zhu)(zhu)鐵(tie)、鑄(zhu)(zhu)鋼和配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)有(you)色合金(jin)。叉(cha)車配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)按(an)造型(xing)(xing)材料(liao)的(de)(de)不同,又可分(fen)為(wei)兩(liang)大類(lei):一(yi)類(lei)以(yi)天(tian)然礦產(chan)砂(sha)石(shi)作(zuo)為(wei)主要造型(xing)(xing)材料(liao),如(ru)(ru)熔模配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)、殼型(xing)(xing)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)、負(fu)壓配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)、泥型(xing)(xing)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)、實型(xing)(xing)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)、陶(tao)瓷(ci)型(xing)(xing)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)等(deng);一(yi)類(lei)以(yi)金(jin)屬(shu)作(zuo)為(wei)主要鑄(zhu)(zhu)型(xing)(xing)材料(liao),如(ru)(ru)金(jin)屬(shu)型(xing)(xing)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)、離心配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)、連續配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)、叉(cha)車配(pei)(pei)(pei)(pei)(pei)件鐵(tie)、低壓配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)等(deng)。
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