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鑄鐵配重塊是用于(yu)增加(jia)自身重量來保(bao)持平衡的(de)重物,是將噴(pen)丸機(ji)熔(rong)煉成符合 要求的(de)液體并澆進鑄型里,經冷(leng)卻凝固、清整處理后得(de)到有預定(ding)形(xing)狀、尺寸和性(xing)能(neng)的(de)鑄件的(de)工藝(yi)過程。現(xian)代機(ji)械(xie)制造工業的(de)基(ji)礎工藝(yi)之一。
工(gong)作(zuo)(zuo)面(mian)(mian)(mian)小(xiao)(xiao)(xiao)范圍內的局(ju)(ju)部(bu)變化是(shi)(shi)指加(jia)工(gong)表(biao)面(mian)(mian)(mian)不(bu)平(ping)(ping)(ping)(ping)整,有(you)變形,灰(hui)口鐵(tie)(tie)可以看作(zuo)(zuo)是(shi)(shi)鋼的基體與(yu)片(pian)狀石(shi)墨的夾(jia)雜(za)。因(yin)此石(shi)墨片(pian)越少,越細,為了(le)保證鑄鐵(tie)(tie)在澆鑄能夠得(de)到灰(hui)口,且不(bu)至(zhi)于(yu)得(de)到過多和粗大(da)的石(shi)墨片(pian),這里所說的工(gong)作(zuo)(zuo)面(mian)(mian)(mian)小(xiao)(xiao)(xiao)范圍,對小(xiao)(xiao)(xiao)鑄鐵(tie)(tie)平(ping)(ping)(ping)(ping)板(ban)(ban)而言(yan)是(shi)(shi)局(ju)(ju)部(bu)位(wei)置,對大(da)鑄鐵(tie)(tie)平(ping)(ping)(ping)(ping)板(ban)(ban)而言(yan)是(shi)(shi)局(ju)(ju)部(bu)面(mian)(mian)(mian)積(ji)。鑄鐵(tie)(tie)平(ping)(ping)(ping)(ping)板(ban)(ban)的平(ping)(ping)(ping)(ping)整性(xing)反映(ying)了(le)鑄鐵(tie)(tie)平(ping)(ping)(ping)(ping)板(ban)(ban)局(ju)(ju)部(bu)誤(wu)差(cha)鑄鐵(tie)(tie)平(ping)(ping)(ping)(ping)板(ban)(ban)的局(ju)(ju)部(bu)誤(wu)差(cha)是(shi)(shi)指鑄鐵(tie)(tie)平(ping)(ping)(ping)(ping)板(ban)(ban)工(gong)作(zuo)(zuo)面(mian)(mian)(mian)局(ju)(ju)部(bu)平(ping)(ping)(ping)(ping)面(mian)(mian)(mian)度加(jia)工(gong)質量,即表(biao)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)(zao)(zao)型造(zao)(zao)(zao)芯(xin)都實現了機(ji)械(xie)化或自動化。常用的砂型造(zao)(zao)(zao)型造(zao)(zao)(zao)芯(xin)設(she)備有高、中、低壓造(zao)(zao)(zao)型機(ji)、拋(pao)砂機(ji)、無箱(xiang)射(she)壓造(zao)(zao)(zao)型機(ji)、射(she)芯(xin)機(ji)、冷和熱芯(xin)盒(he)機(ji)等。
叉車配重鐵(tie)(tie)(tie)(tie)(tie)工(gong)藝可(ke)分(fen)為(wei)(wei)三個基(ji)本部(bu)分(fen),即配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)金(jin)(jin)(jin)(jin)屬準備、鑄(zhu)型(xing)(xing)準備和(he)鑄(zhu)件處理。 配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)金(jin)(jin)(jin)(jin)屬是指配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)生產中用于澆(jiao)注鑄(zhu)件的金(jin)(jin)(jin)(jin)屬材料,它是以(yi)一種(zhong)金(jin)(jin)(jin)(jin)屬元素(su)為(wei)(wei)主(zhu)要成(cheng)分(fen),并加入其(qi)他金(jin)(jin)(jin)(jin)屬或非金(jin)(jin)(jin)(jin)屬元素(su)而組成(cheng)的合(he)金(jin)(jin)(jin)(jin),習慣上稱(cheng)為(wei)(wei)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)合(he)金(jin)(jin)(jin)(jin),主(zhu)要有鑄(zhu)鐵(tie)(tie)(tie)(tie)(tie)、鑄(zhu)鋼(gang)和(he)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)有色合(he)金(jin)(jin)(jin)(jin)。叉(cha)車(che)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)按造(zao)型(xing)(xing)材料的不同,又可(ke)分(fen)為(wei)(wei)兩大(da)類:一類以(yi)天(tian)然(ran)礦產砂石(shi)作為(wei)(wei)主(zhu)要造(zao)型(xing)(xing)材料,如熔模配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、殼型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、負壓(ya)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、泥型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、實型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、陶瓷型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)等(deng);一類以(yi)金(jin)(jin)(jin)(jin)屬作為(wei)(wei)主(zhu)要鑄(zhu)型(xing)(xing)材料,如金(jin)(jin)(jin)(jin)屬型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、離心配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、連續配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、叉(cha)車(che)配(pei)(pei)(pei)件鐵(tie)(tie)(tie)(tie)(tie)、低(di)壓(ya)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)等(deng)。
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