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鑄鐵配重塊是用于增加自身(shen)重量來保持平(ping)衡(heng)的重物,是將(jiang)噴丸機(ji)熔煉成(cheng)符合 要求的液體并澆進鑄(zhu)(zhu)型(xing)里,經冷卻(que)凝固(gu)、清整處理后得到(dao)有(you)預定形狀(zhuang)、尺寸和性能(neng)的鑄(zhu)(zhu)件的工藝過程。現代機(ji)械制(zhi)造工業(ye)的基礎工藝之一。
工(gong)作(zuo)(zuo)面(mian)(mian)小(xiao)范圍內的(de)(de)局(ju)(ju)部(bu)變(bian)(bian)化是指加(jia)工(gong)表面(mian)(mian)不平(ping)(ping)整,有變(bian)(bian)形(xing),灰口鐵可以看(kan)作(zuo)(zuo)是鋼的(de)(de)基體與(yu)片狀石(shi)墨(mo)(mo)的(de)(de)夾雜。因此石(shi)墨(mo)(mo)片越少,越細(xi),為(wei)了(le)保(bao)證鑄(zhu)(zhu)(zhu)鐵在澆鑄(zhu)(zhu)(zhu)能夠得到(dao)灰口,且不至于得到(dao)過(guo)多和粗(cu)大(da)的(de)(de)石(shi)墨(mo)(mo)片,這里所說的(de)(de)工(gong)作(zuo)(zuo)面(mian)(mian)小(xiao)范圍,對(dui)小(xiao)鑄(zhu)(zhu)(zhu)鐵平(ping)(ping)板而言是局(ju)(ju)部(bu)位(wei)置(zhi),對(dui)大(da)鑄(zhu)(zhu)(zhu)鐵平(ping)(ping)板而言是局(ju)(ju)部(bu)面(mian)(mian)積。鑄(zhu)(zhu)(zhu)鐵平(ping)(ping)板的(de)(de)平(ping)(ping)整性反映了(le)鑄(zhu)(zhu)(zhu)鐵平(ping)(ping)板局(ju)(ju)部(bu)誤差鑄(zhu)(zhu)(zhu)鐵平(ping)(ping)板的(de)(de)局(ju)(ju)部(bu)誤差是指鑄(zhu)(zhu)(zhu)鐵平(ping)(ping)板工(gong)作(zuo)(zuo)面(mian)(mian)局(ju)(ju)部(bu)平(ping)(ping)面(mian)(mian)度(du)加(jia)工(gong)質(zhi)量,即表面(mian)(mian)粗(cu)糙度(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(xin)都實現了機械化或自動化。常用的(de)砂(sha)型(xing)造(zao)(zao)型(xing)造(zao)(zao)芯(xin)設備有高、中、低(di)壓造(zao)(zao)型(xing)機、拋砂(sha)機、無箱射壓造(zao)(zao)型(xing)機、射芯(xin)機、冷和(he)熱(re)芯(xin)盒(he)機等。
叉車配重鐵(tie)(tie)(tie)工藝可分為三個(ge)基本部分,即(ji)配(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)金(jin)(jin)屬(shu)(shu)(shu)準(zhun)備、鑄型(xing)(xing)(xing)準(zhun)備和鑄件(jian)(jian)處理(li)。 配(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)金(jin)(jin)屬(shu)(shu)(shu)是指配(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)生產中用于澆注鑄件(jian)(jian)的(de)金(jin)(jin)屬(shu)(shu)(shu)材(cai)料,它是以一(yi)(yi)種金(jin)(jin)屬(shu)(shu)(shu)元(yuan)素為主要(yao)(yao)成分,并加入其(qi)他金(jin)(jin)屬(shu)(shu)(shu)或非金(jin)(jin)屬(shu)(shu)(shu)元(yuan)素而組(zu)成的(de)合金(jin)(jin),習(xi)慣(guan)上(shang)稱為配(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)合金(jin)(jin),主要(yao)(yao)有(you)鑄鐵(tie)(tie)(tie)、鑄鋼和配(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)有(you)色合金(jin)(jin)。叉(cha)車配(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)按造型(xing)(xing)(xing)材(cai)料的(de)不同,又(you)可分為兩大類(lei):一(yi)(yi)類(lei)以天然礦(kuang)產砂石(shi)作為主要(yao)(yao)造型(xing)(xing)(xing)材(cai)料,如(ru)熔模(mo)配(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、殼型(xing)(xing)(xing)配(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、負(fu)壓配(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、泥型(xing)(xing)(xing)配(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、實型(xing)(xing)(xing)配(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、陶瓷型(xing)(xing)(xing)配(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)等;一(yi)(yi)類(lei)以金(jin)(jin)屬(shu)(shu)(shu)作為主要(yao)(yao)鑄型(xing)(xing)(xing)材(cai)料,如(ru)金(jin)(jin)屬(shu)(shu)(shu)型(xing)(xing)(xing)配(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、離(li)心配(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、連續配(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、叉(cha)車配(pei)(pei)件(jian)(jian)鐵(tie)(tie)(tie)、低壓配(pei)(pei)重(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)等。
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