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鑄鐵配重塊是(shi)用于增(zeng)加自身重量來保持(chi)平(ping)衡的(de)(de)重物(wu),是(shi)將噴丸機熔(rong)煉成符合 要求(qiu)的(de)(de)液體并(bing)澆進鑄(zhu)(zhu)型里,經(jing)冷卻凝固、清整處理后得到有預定形狀、尺寸和(he)性能(neng)的(de)(de)鑄(zhu)(zhu)件(jian)的(de)(de)工(gong)藝過程。現代機械制造工(gong)業的(de)(de)基(ji)礎工(gong)藝之一(yi)。
工(gong)(gong)作(zuo)(zuo)面(mian)小范(fan)圍內(nei)的局(ju)部(bu)(bu)(bu)變(bian)化是指(zhi)加工(gong)(gong)表面(mian)不平(ping)(ping)整(zheng),有(you)變(bian)形(xing),灰口鐵(tie)(tie)可(ke)以看作(zuo)(zuo)是鋼的基體(ti)與(yu)片(pian)狀(zhuang)石(shi)墨的夾雜。因此(ci)石(shi)墨片(pian)越(yue)(yue)少,越(yue)(yue)細,為了(le)保證(zheng)鑄(zhu)鐵(tie)(tie)在澆鑄(zhu)能夠得到灰口,且不至于得到過多(duo)和粗大的石(shi)墨片(pian),這里所說的工(gong)(gong)作(zuo)(zuo)面(mian)小范(fan)圍,對(dui)小鑄(zhu)鐵(tie)(tie)平(ping)(ping)板(ban)(ban)(ban)(ban)而言(yan)(yan)是局(ju)部(bu)(bu)(bu)位置,對(dui)大鑄(zhu)鐵(tie)(tie)平(ping)(ping)板(ban)(ban)(ban)(ban)而言(yan)(yan)是局(ju)部(bu)(bu)(bu)面(mian)積。鑄(zhu)鐵(tie)(tie)平(ping)(ping)板(ban)(ban)(ban)(ban)的平(ping)(ping)整(zheng)性反(fan)映了(le)鑄(zhu)鐵(tie)(tie)平(ping)(ping)板(ban)(ban)(ban)(ban)局(ju)部(bu)(bu)(bu)誤差鑄(zhu)鐵(tie)(tie)平(ping)(ping)板(ban)(ban)(ban)(ban)的局(ju)部(bu)(bu)(bu)誤差是指(zhi)鑄(zhu)鐵(tie)(tie)平(ping)(ping)板(ban)(ban)(ban)(ban)工(gong)(gong)作(zuo)(zuo)面(mian)局(ju)部(bu)(bu)(bu)平(ping)(ping)面(mian)度加工(gong)(gong)質量(liang),即(ji)表面(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(xing)(xing)造(zao)(zao)芯都(dou)實現了機械化或(huo)自動化。常(chang)用的砂(sha)型(xing)(xing)造(zao)(zao)型(xing)(xing)造(zao)(zao)芯設備有高、中、低壓(ya)造(zao)(zao)型(xing)(xing)機、拋砂(sha)機、無箱射壓(ya)造(zao)(zao)型(xing)(xing)機、射芯機、冷和熱芯盒(he)機等。
叉車配重鐵(tie)(tie)(tie)(tie)(tie)(tie)工藝可(ke)分為三個基本部分,即(ji)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)金(jin)屬(shu)(shu)(shu)(shu)準備、鑄型(xing)準備和鑄件(jian)處理。 配(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)金(jin)屬(shu)(shu)(shu)(shu)是指配(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)生產中(zhong)用于澆注鑄件(jian)的金(jin)屬(shu)(shu)(shu)(shu)材(cai)料(liao)(liao),它(ta)是以一(yi)種金(jin)屬(shu)(shu)(shu)(shu)元素(su)(su)為主(zhu)要(yao)(yao)成(cheng)分,并加入其他金(jin)屬(shu)(shu)(shu)(shu)或非金(jin)屬(shu)(shu)(shu)(shu)元素(su)(su)而組成(cheng)的合金(jin),習慣上稱(cheng)為配(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)合金(jin),主(zhu)要(yao)(yao)有鑄鐵(tie)(tie)(tie)(tie)(tie)(tie)、鑄鋼和配(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)有色(se)合金(jin)。叉(cha)車(che)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)按造型(xing)材(cai)料(liao)(liao)的不同,又可(ke)分為兩大類(lei):一(yi)類(lei)以天然礦產砂石作(zuo)為主(zhu)要(yao)(yao)造型(xing)材(cai)料(liao)(liao),如(ru)熔模配(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、殼型(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、負壓(ya)(ya)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、泥型(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、實型(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、陶瓷型(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)等;一(yi)類(lei)以金(jin)屬(shu)(shu)(shu)(shu)作(zuo)為主(zhu)要(yao)(yao)鑄型(xing)材(cai)料(liao)(liao),如(ru)金(jin)屬(shu)(shu)(shu)(shu)型(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、離心配(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、連續配(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)、叉(cha)車(che)配(pei)(pei)(pei)件(jian)鐵(tie)(tie)(tie)(tie)(tie)(tie)、低壓(ya)(ya)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)(tie)等。
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