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鑄鐵配重塊是用(yong)于增加自身重(zhong)(zhong)量來(lai)保持平衡的重(zhong)(zhong)物,是將噴丸機(ji)熔煉成符合 要求(qiu)的液體并澆進(jin)鑄型里(li),經冷卻凝固、清整處理后得到(dao)有預定形狀、尺寸和性能的鑄件的工(gong)藝(yi)過程。現(xian)代機(ji)械制造工(gong)業的基礎工(gong)藝(yi)之一。
工(gong)作面(mian)(mian)小(xiao)范圍內的(de)局(ju)(ju)部(bu)(bu)(bu)變(bian)化是指(zhi)加工(gong)表面(mian)(mian)不平(ping)(ping)整,有變(bian)形,灰口鐵(tie)可(ke)以(yi)看(kan)作是鋼的(de)基體與片(pian)狀(zhuang)石(shi)墨的(de)夾雜。因此石(shi)墨片(pian)越(yue)少,越(yue)細,為了保(bao)證(zheng)鑄(zhu)鐵(tie)在澆鑄(zhu)能(neng)夠得(de)到灰口,且不至于得(de)到過多和粗大的(de)石(shi)墨片(pian),這里(li)所說(shuo)的(de)工(gong)作面(mian)(mian)小(xiao)范圍,對(dui)小(xiao)鑄(zhu)鐵(tie)平(ping)(ping)板而言(yan)是局(ju)(ju)部(bu)(bu)(bu)位置,對(dui)大鑄(zhu)鐵(tie)平(ping)(ping)板而言(yan)是局(ju)(ju)部(bu)(bu)(bu)面(mian)(mian)積。鑄(zhu)鐵(tie)平(ping)(ping)板的(de)平(ping)(ping)整性反映了鑄(zhu)鐵(tie)平(ping)(ping)板局(ju)(ju)部(bu)(bu)(bu)誤(wu)差鑄(zhu)鐵(tie)平(ping)(ping)板的(de)局(ju)(ju)部(bu)(bu)(bu)誤(wu)差是指(zhi)鑄(zhu)鐵(tie)平(ping)(ping)板工(gong)作面(mian)(mian)局(ju)(ju)部(bu)(bu)(bu)平(ping)(ping)面(mian)(mian)度加工(gong)質量,即(ji)表面(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)型造(zao)(zao)芯都實現了機(ji)械化或自動(dong)化。常用的砂(sha)型造(zao)(zao)型造(zao)(zao)芯設備(bei)有(you)高、中(zhong)、低壓造(zao)(zao)型機(ji)、拋(pao)砂(sha)機(ji)、無箱射壓造(zao)(zao)型機(ji)、射芯機(ji)、冷和熱芯盒機(ji)等。
叉車配重鐵(tie)(tie)(tie)(tie)工藝可(ke)分(fen)為(wei)三(san)個基本部分(fen),即配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)金(jin)(jin)屬準備、鑄型(xing)(xing)準備和(he)鑄件處理(li)。 配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)金(jin)(jin)屬是(shi)指配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)生產中(zhong)用于澆(jiao)注(zhu)鑄件的金(jin)(jin)屬材料(liao),它是(shi)以一種金(jin)(jin)屬元素為(wei)主(zhu)(zhu)(zhu)要成分(fen),并加入其他金(jin)(jin)屬或非金(jin)(jin)屬元素而組成的合金(jin)(jin),習(xi)慣上稱為(wei)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)合金(jin)(jin),主(zhu)(zhu)(zhu)要有鑄鐵(tie)(tie)(tie)(tie)、鑄鋼和(he)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)有色合金(jin)(jin)。叉(cha)車配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)按造型(xing)(xing)材料(liao)的不同,又可(ke)分(fen)為(wei)兩(liang)大類:一類以天然礦(kuang)產砂石作為(wei)主(zhu)(zhu)(zhu)要造型(xing)(xing)材料(liao),如熔(rong)模配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、殼型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、負(fu)壓(ya)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、泥型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、實型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、陶瓷型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)等(deng);一類以金(jin)(jin)屬作為(wei)主(zhu)(zhu)(zhu)要鑄型(xing)(xing)材料(liao),如金(jin)(jin)屬型(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、離心配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、連續配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、叉(cha)車配(pei)(pei)(pei)件鐵(tie)(tie)(tie)(tie)、低壓(ya)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)等(deng)。
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