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鑄鐵配重塊是用(yong)于(yu)增(zeng)加自身重量來保持(chi)平衡的重物,是將噴丸機熔煉成符合(he) 要求的液體并(bing)澆進(jin)鑄(zhu)(zhu)型(xing)里(li),經冷卻凝固、清整處理后得到有預定形(xing)狀(zhuang)、尺寸和性(xing)能的鑄(zhu)(zhu)件的工藝過(guo)程。現代機械制造工業(ye)的基礎(chu)工藝之一(yi)。
工(gong)(gong)作(zuo)面(mian)(mian)(mian)(mian)(mian)小(xiao)范(fan)圍內的局(ju)部(bu)(bu)變(bian)化是(shi)(shi)指加工(gong)(gong)表面(mian)(mian)(mian)(mian)(mian)不平(ping)整(zheng),有變(bian)形,灰口鐵(tie)(tie)(tie)可以看作(zuo)是(shi)(shi)鋼的基體(ti)與片(pian)狀石墨的夾雜(za)。因此石墨片(pian)越少,越細(xi),為了保證鑄(zhu)鐵(tie)(tie)(tie)在(zai)澆(jiao)鑄(zhu)能夠得(de)到灰口,且不至于得(de)到過(guo)多和粗大的石墨片(pian),這里所(suo)說的工(gong)(gong)作(zuo)面(mian)(mian)(mian)(mian)(mian)小(xiao)范(fan)圍,對(dui)小(xiao)鑄(zhu)鐵(tie)(tie)(tie)平(ping)板而言是(shi)(shi)局(ju)部(bu)(bu)位置,對(dui)大鑄(zhu)鐵(tie)(tie)(tie)平(ping)板而言是(shi)(shi)局(ju)部(bu)(bu)面(mian)(mian)(mian)(mian)(mian)積(ji)。鑄(zhu)鐵(tie)(tie)(tie)平(ping)板的平(ping)整(zheng)性反映(ying)了鑄(zhu)鐵(tie)(tie)(tie)平(ping)板局(ju)部(bu)(bu)誤(wu)(wu)差鑄(zhu)鐵(tie)(tie)(tie)平(ping)板的局(ju)部(bu)(bu)誤(wu)(wu)差是(shi)(shi)指鑄(zhu)鐵(tie)(tie)(tie)平(ping)板工(gong)(gong)作(zuo)面(mian)(mian)(mian)(mian)(mian)局(ju)部(bu)(bu)平(ping)面(mian)(mian)(mian)(mian)(mian)度加工(gong)(gong)質量,即(ji)表面(mian)(mian)(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(che)間里,造型(xing)造芯(xin)都實現(xian)了(le)機(ji)械化(hua)或自動化(hua)。常用的砂型(xing)造型(xing)造芯(xin)設備有高、中、低(di)壓(ya)造型(xing)機(ji)、拋砂機(ji)、無(wu)箱射(she)壓(ya)造型(xing)機(ji)、射(she)芯(xin)機(ji)、冷和熱芯(xin)盒機(ji)等。
叉車配重鐵(tie)(tie)(tie)(tie)(tie)工藝(yi)可分(fen)為(wei)三(san)個基(ji)本部分(fen),即配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)金屬(shu)準(zhun)備、鑄(zhu)(zhu)型(xing)(xing)(xing)(xing)準(zhun)備和(he)(he)鑄(zhu)(zhu)件(jian)處理。 配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)金屬(shu)是指配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)生(sheng)產中(zhong)用于澆注鑄(zhu)(zhu)件(jian)的金屬(shu)材料(liao),它(ta)是以(yi)一種金屬(shu)元素為(wei)主(zhu)(zhu)要(yao)(yao)成(cheng)分(fen),并(bing)加入其(qi)他金屬(shu)或非(fei)金屬(shu)元素而組成(cheng)的合金,習慣上稱(cheng)為(wei)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)合金,主(zhu)(zhu)要(yao)(yao)有(you)鑄(zhu)(zhu)鐵(tie)(tie)(tie)(tie)(tie)、鑄(zhu)(zhu)鋼和(he)(he)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)有(you)色合金。叉車(che)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)按造(zao)(zao)型(xing)(xing)(xing)(xing)材料(liao)的不同,又可分(fen)為(wei)兩大類(lei)(lei):一類(lei)(lei)以(yi)天然(ran)礦產砂石作為(wei)主(zhu)(zhu)要(yao)(yao)造(zao)(zao)型(xing)(xing)(xing)(xing)材料(liao),如熔模配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、殼型(xing)(xing)(xing)(xing)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、負壓配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、泥型(xing)(xing)(xing)(xing)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、實型(xing)(xing)(xing)(xing)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、陶瓷型(xing)(xing)(xing)(xing)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)等(deng);一類(lei)(lei)以(yi)金屬(shu)作為(wei)主(zhu)(zhu)要(yao)(yao)鑄(zhu)(zhu)型(xing)(xing)(xing)(xing)材料(liao),如金屬(shu)型(xing)(xing)(xing)(xing)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、離心(xin)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、連續配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)、叉車(che)配(pei)(pei)(pei)(pei)件(jian)鐵(tie)(tie)(tie)(tie)(tie)、低壓配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)(tie)等(deng)。
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