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鑄鐵配重塊是用于增(zeng)加(jia)自(zi)身(shen)重量來保(bao)持平(ping)衡的重物,是將噴丸機(ji)熔煉成(cheng)符合 要(yao)求的液體(ti)并澆進鑄型里,經冷卻凝固、清(qing)整處理(li)后得到有預定(ding)形狀、尺(chi)寸和性能(neng)的鑄件的工(gong)藝過程。現代機(ji)械制造(zao)工(gong)業的基(ji)礎工(gong)藝之一。
工(gong)作(zuo)(zuo)面小(xiao)范圍內的局(ju)部(bu)(bu)變化是(shi)(shi)指(zhi)加工(gong)表(biao)面不平整(zheng),有變形,灰口鐵(tie)可以看作(zuo)(zuo)是(shi)(shi)鋼的基體與片狀石(shi)墨(mo)的夾雜(za)。因此石(shi)墨(mo)片越少(shao),越細,為了(le)保(bao)證(zheng)鑄鐵(tie)在澆(jiao)鑄能夠(gou)得(de)到灰口,且(qie)不至(zhi)于得(de)到過多(duo)和粗(cu)大(da)的石(shi)墨(mo)片,這里所說(shuo)的工(gong)作(zuo)(zuo)面小(xiao)范圍,對小(xiao)鑄鐵(tie)平板(ban)(ban)而言是(shi)(shi)局(ju)部(bu)(bu)位置,對大(da)鑄鐵(tie)平板(ban)(ban)而言是(shi)(shi)局(ju)部(bu)(bu)面積。鑄鐵(tie)平板(ban)(ban)的平整(zheng)性(xing)反映了(le)鑄鐵(tie)平板(ban)(ban)局(ju)部(bu)(bu)誤(wu)(wu)差(cha)鑄鐵(tie)平板(ban)(ban)的局(ju)部(bu)(bu)誤(wu)(wu)差(cha)是(shi)(shi)指(zhi)鑄鐵(tie)平板(ban)(ban)工(gong)作(zuo)(zuo)面局(ju)部(bu)(bu)平面度加工(gong)質量,即表(biao)面粗(cu)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(zao)型造(zao)芯(xin)(xin)都實現了機(ji)械化或自動化。常(chang)用的砂型造(zao)型造(zao)芯(xin)(xin)設備有高、中、低(di)壓(ya)造(zao)型機(ji)、拋砂機(ji)、無箱射壓(ya)造(zao)型機(ji)、射芯(xin)(xin)機(ji)、冷和熱芯(xin)(xin)盒機(ji)等。
叉車配重鐵(tie)(tie)(tie)(tie)工藝可分為(wei)三個基本部分,即配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)金(jin)屬(shu)準(zhun)備、鑄(zhu)型(xing)(xing)(xing)(xing)準(zhun)備和(he)(he)鑄(zhu)件(jian)處理。 配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)金(jin)屬(shu)是指(zhi)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)生產中用于(yu)澆注鑄(zhu)件(jian)的(de)金(jin)屬(shu)材(cai)料(liao),它是以一(yi)種金(jin)屬(shu)元(yuan)素為(wei)主(zhu)要成分,并加入其他金(jin)屬(shu)或非(fei)金(jin)屬(shu)元(yuan)素而組成的(de)合(he)金(jin),習慣上稱為(wei)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)合(he)金(jin),主(zhu)要有鑄(zhu)鐵(tie)(tie)(tie)(tie)、鑄(zhu)鋼和(he)(he)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)有色合(he)金(jin)。叉(cha)車配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)按造型(xing)(xing)(xing)(xing)材(cai)料(liao)的(de)不同(tong),又可分為(wei)兩大類(lei):一(yi)類(lei)以天然礦產砂石作(zuo)為(wei)主(zhu)要造型(xing)(xing)(xing)(xing)材(cai)料(liao),如熔模配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、殼型(xing)(xing)(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、負(fu)壓配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、泥型(xing)(xing)(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、實型(xing)(xing)(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、陶(tao)瓷型(xing)(xing)(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)等(deng);一(yi)類(lei)以金(jin)屬(shu)作(zuo)為(wei)主(zhu)要鑄(zhu)型(xing)(xing)(xing)(xing)材(cai)料(liao),如金(jin)屬(shu)型(xing)(xing)(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、離心配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、連續(xu)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、叉(cha)車配(pei)(pei)(pei)件(jian)鐵(tie)(tie)(tie)(tie)、低壓配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)等(deng)。
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