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鑄鐵配重塊是用(yong)于增(zeng)加自身重(zhong)量來保持平衡的重(zhong)物(wu),是將噴丸機(ji)熔煉(lian)成符合 要(yao)求的液體并澆進鑄(zhu)型里,經(jing)冷卻(que)凝(ning)固、清整處(chu)理后(hou)得到有預(yu)定形狀、尺(chi)寸和性能的鑄(zhu)件的工藝過程。現代機(ji)械制造工業的基礎工藝之一。
工作面(mian)(mian)小(xiao)范(fan)圍內的局(ju)部(bu)變化是(shi)指加工表面(mian)(mian)不平(ping)整,有變形(xing),灰口鐵(tie)可以看作是(shi)鋼的基體與片狀石(shi)(shi)墨(mo)的夾雜(za)。因此石(shi)(shi)墨(mo)片越少(shao),越細,為(wei)了(le)保證鑄(zhu)鐵(tie)在澆鑄(zhu)能夠得(de)到灰口,且不至于得(de)到過多和粗大的石(shi)(shi)墨(mo)片,這里(li)所說的工作面(mian)(mian)小(xiao)范(fan)圍,對小(xiao)鑄(zhu)鐵(tie)平(ping)板(ban)(ban)(ban)而(er)言是(shi)局(ju)部(bu)位(wei)置,對大鑄(zhu)鐵(tie)平(ping)板(ban)(ban)(ban)而(er)言是(shi)局(ju)部(bu)面(mian)(mian)積。鑄(zhu)鐵(tie)平(ping)板(ban)(ban)(ban)的平(ping)整性反映了(le)鑄(zhu)鐵(tie)平(ping)板(ban)(ban)(ban)局(ju)部(bu)誤(wu)差鑄(zhu)鐵(tie)平(ping)板(ban)(ban)(ban)的局(ju)部(bu)誤(wu)差是(shi)指鑄(zhu)鐵(tie)平(ping)板(ban)(ban)(ban)工作面(mian)(mian)局(ju)部(bu)平(ping)面(mian)(mian)度(du)加工質量,即表面(mian)(mian)粗糙(cao)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)造(zao)(zao)芯都(dou)實現了機(ji)械化或自動化。常用的砂(sha)型(xing)造(zao)(zao)型(xing)造(zao)(zao)芯設備有高、中、低壓造(zao)(zao)型(xing)機(ji)、拋砂(sha)機(ji)、無箱射壓造(zao)(zao)型(xing)機(ji)、射芯機(ji)、冷(leng)和熱芯盒(he)機(ji)等。
叉車配重鐵(tie)(tie)(tie)工(gong)藝可(ke)分(fen)(fen)為(wei)三個基本部分(fen)(fen),即配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)金(jin)(jin)屬(shu)(shu)準(zhun)(zhun)備、鑄(zhu)(zhu)(zhu)型(xing)準(zhun)(zhun)備和(he)鑄(zhu)(zhu)(zhu)件(jian)處理。 配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)金(jin)(jin)屬(shu)(shu)是指配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)生產中用于澆注(zhu)鑄(zhu)(zhu)(zhu)件(jian)的(de)金(jin)(jin)屬(shu)(shu)材(cai)料(liao),它是以(yi)一(yi)種金(jin)(jin)屬(shu)(shu)元素為(wei)主(zhu)(zhu)(zhu)(zhu)要成分(fen)(fen),并加入(ru)其(qi)他(ta)金(jin)(jin)屬(shu)(shu)或非(fei)金(jin)(jin)屬(shu)(shu)元素而組成的(de)合(he)金(jin)(jin),習慣上稱為(wei)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)合(he)金(jin)(jin),主(zhu)(zhu)(zhu)(zhu)要有(you)鑄(zhu)(zhu)(zhu)鐵(tie)(tie)(tie)、鑄(zhu)(zhu)(zhu)鋼和(he)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)有(you)色合(he)金(jin)(jin)。叉車(che)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)按造型(xing)材(cai)料(liao)的(de)不同,又(you)可(ke)分(fen)(fen)為(wei)兩(liang)大(da)類:一(yi)類以(yi)天然(ran)礦產砂石作為(wei)主(zhu)(zhu)(zhu)(zhu)要造型(xing)材(cai)料(liao),如熔(rong)模(mo)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、殼型(xing)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、負壓配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、泥型(xing)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、實型(xing)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、陶瓷型(xing)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)等;一(yi)類以(yi)金(jin)(jin)屬(shu)(shu)作為(wei)主(zhu)(zhu)(zhu)(zhu)要鑄(zhu)(zhu)(zhu)型(xing)材(cai)料(liao),如金(jin)(jin)屬(shu)(shu)型(xing)配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、離(li)心配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、連續配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、叉車(che)配(pei)(pei)(pei)(pei)(pei)件(jian)鐵(tie)(tie)(tie)、低壓配(pei)(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)等。
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