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鑄鐵配重塊是用于增加(jia)自身重量來(lai)保持平衡的重物(wu),是將噴丸機(ji)熔煉成符合 要求的液(ye)體(ti)并澆(jiao)進鑄(zhu)型(xing)里,經(jing)冷卻(que)凝(ning)固、清整(zheng)處理(li)后得到有預定形(xing)狀、尺寸和性能的鑄(zhu)件的工藝(yi)過(guo)程(cheng)。現代機(ji)械制造工業的基礎工藝(yi)之一。
工作面(mian)小(xiao)范(fan)圍內的(de)局(ju)部(bu)(bu)變化是(shi)指加(jia)工表(biao)面(mian)不(bu)平(ping)(ping)整,有變形,灰口鐵(tie)可(ke)以看作是(shi)鋼的(de)基體與片(pian)(pian)狀石墨(mo)的(de)夾雜。因(yin)此石墨(mo)片(pian)(pian)越少,越細,為了保證鑄(zhu)(zhu)(zhu)(zhu)(zhu)鐵(tie)在澆鑄(zhu)(zhu)(zhu)(zhu)(zhu)能夠得到灰口,且不(bu)至于得到過多(duo)和粗大(da)的(de)石墨(mo)片(pian)(pian),這(zhe)里所說的(de)工作面(mian)小(xiao)范(fan)圍,對(dui)小(xiao)鑄(zhu)(zhu)(zhu)(zhu)(zhu)鐵(tie)平(ping)(ping)板(ban)而言是(shi)局(ju)部(bu)(bu)位置,對(dui)大(da)鑄(zhu)(zhu)(zhu)(zhu)(zhu)鐵(tie)平(ping)(ping)板(ban)而言是(shi)局(ju)部(bu)(bu)面(mian)積。鑄(zhu)(zhu)(zhu)(zhu)(zhu)鐵(tie)平(ping)(ping)板(ban)的(de)平(ping)(ping)整性反映了鑄(zhu)(zhu)(zhu)(zhu)(zhu)鐵(tie)平(ping)(ping)板(ban)局(ju)部(bu)(bu)誤差(cha)鑄(zhu)(zhu)(zhu)(zhu)(zhu)鐵(tie)平(ping)(ping)板(ban)的(de)局(ju)部(bu)(bu)誤差(cha)是(shi)指鑄(zhu)(zhu)(zhu)(zhu)(zhu)鐵(tie)平(ping)(ping)板(ban)工作面(mian)局(ju)部(bu)(bu)平(ping)(ping)面(mian)度(du)(du)加(jia)工質量,即(ji)表(biao)面(mian)粗糙(cao)度(du)(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)(zao)(zao)型(xing)(xing)(xing)造(zao)(zao)(zao)(zao)芯都(dou)實現了機械化或(huo)自動化。常用(yong)的砂型(xing)(xing)(xing)造(zao)(zao)(zao)(zao)型(xing)(xing)(xing)造(zao)(zao)(zao)(zao)芯設備有高、中、低(di)壓造(zao)(zao)(zao)(zao)型(xing)(xing)(xing)機、拋砂機、無箱射壓造(zao)(zao)(zao)(zao)型(xing)(xing)(xing)機、射芯機、冷和熱芯盒機等。
叉車配重鐵(tie)(tie)(tie)(tie)工藝可分為三個基本部分,即配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)金(jin)屬準備、鑄(zhu)型(xing)準備和鑄(zhu)件處(chu)理。 配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)金(jin)屬是(shi)指(zhi)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)生產中用于(yu)澆注鑄(zhu)件的(de)(de)(de)金(jin)屬材(cai)(cai)料,它是(shi)以(yi)一種(zhong)金(jin)屬元素(su)(su)為主(zhu)要成(cheng)分,并加入(ru)其(qi)他金(jin)屬或非金(jin)屬元素(su)(su)而(er)組成(cheng)的(de)(de)(de)合金(jin),習慣上(shang)稱為配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)合金(jin),主(zhu)要有鑄(zhu)鐵(tie)(tie)(tie)(tie)、鑄(zhu)鋼(gang)和配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)有色合金(jin)。叉(cha)車配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)按造型(xing)材(cai)(cai)料的(de)(de)(de)不同(tong),又(you)可分為兩大類:一類以(yi)天然礦產砂石作為主(zhu)要造型(xing)材(cai)(cai)料,如(ru)(ru)熔模配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、殼(ke)型(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、負壓配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、泥型(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、實型(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、陶瓷型(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)等;一類以(yi)金(jin)屬作為主(zhu)要鑄(zhu)型(xing)材(cai)(cai)料,如(ru)(ru)金(jin)屬型(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、離(li)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(di)壓配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)等。
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