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鑄鐵配重塊是(shi)用于增加(jia)自(zi)身重(zhong)量來保持平(ping)衡(heng)的(de)重(zhong)物,是(shi)將噴(pen)丸機熔煉成符合 要(yao)求的(de)液(ye)體并澆進鑄(zhu)型里,經冷卻(que)凝(ning)固(gu)、清整處理后(hou)得到有(you)預定形狀、尺(chi)寸和性能的(de)鑄(zhu)件的(de)工藝過程。現代機械制造(zao)工業的(de)基礎工藝之(zhi)一。
工作面小(xiao)范圍內的(de)(de)局(ju)(ju)部(bu)變(bian)化是(shi)指加工表(biao)面不平(ping)(ping)整(zheng),有變(bian)形,灰口(kou)鐵可以看(kan)作是(shi)鋼(gang)的(de)(de)基體與片(pian)狀石墨的(de)(de)夾雜。因此(ci)石墨片(pian)越少(shao),越細,為了(le)保(bao)證鑄鐵在澆鑄能夠得到灰口(kou),且(qie)不至于得到過多(duo)和粗大(da)的(de)(de)石墨片(pian),這里所(suo)說的(de)(de)工作面小(xiao)范圍,對小(xiao)鑄鐵平(ping)(ping)板(ban)(ban)而(er)言(yan)是(shi)局(ju)(ju)部(bu)位(wei)置,對大(da)鑄鐵平(ping)(ping)板(ban)(ban)而(er)言(yan)是(shi)局(ju)(ju)部(bu)面積。鑄鐵平(ping)(ping)板(ban)(ban)的(de)(de)平(ping)(ping)整(zheng)性反(fan)映了(le)鑄鐵平(ping)(ping)板(ban)(ban)局(ju)(ju)部(bu)誤(wu)差鑄鐵平(ping)(ping)板(ban)(ban)的(de)(de)局(ju)(ju)部(bu)誤(wu)差是(shi)指鑄鐵平(ping)(ping)板(ban)(ban)工作面局(ju)(ju)部(bu)平(ping)(ping)面度加工質量,即表(biao)面粗糙(cao)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間里(li),造(zao)型(xing)造(zao)芯(xin)都(dou)實現(xian)了機械化或自動化。常用的砂型(xing)造(zao)型(xing)造(zao)芯(xin)設備(bei)有高、中、低壓造(zao)型(xing)機、拋砂機、無箱射壓造(zao)型(xing)機、射芯(xin)機、冷和熱芯(xin)盒機等。
叉車配重鐵(tie)(tie)(tie)工藝可(ke)分為(wei)三個基本部(bu)分,即配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)金屬(shu)(shu)準備(bei)、鑄(zhu)型準備(bei)和(he)鑄(zhu)件(jian)(jian)處理。 配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)金屬(shu)(shu)是指配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)生產(chan)中用于(yu)澆注鑄(zhu)件(jian)(jian)的金屬(shu)(shu)材(cai)(cai)料(liao),它(ta)是以一(yi)種金屬(shu)(shu)元素(su)為(wei)主(zhu)要(yao)(yao)成分,并加入其他金屬(shu)(shu)或非金屬(shu)(shu)元素(su)而(er)組成的合金,習慣上稱為(wei)配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)合金,主(zhu)要(yao)(yao)有鑄(zhu)鐵(tie)(tie)(tie)、鑄(zhu)鋼(gang)和(he)配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)有色合金。叉(cha)車(che)配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)按造型材(cai)(cai)料(liao)的不同(tong),又可(ke)分為(wei)兩大類(lei)(lei):一(yi)類(lei)(lei)以天然(ran)礦(kuang)產(chan)砂(sha)石作為(wei)主(zhu)要(yao)(yao)造型材(cai)(cai)料(liao),如熔模配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、殼型配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、負(fu)壓(ya)(ya)配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、泥型配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、實型配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、陶瓷型配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)等;一(yi)類(lei)(lei)以金屬(shu)(shu)作為(wei)主(zhu)要(yao)(yao)鑄(zhu)型材(cai)(cai)料(liao),如金屬(shu)(shu)型配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、離心(xin)配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、連續配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、叉(cha)車(che)配(pei)件(jian)(jian)鐵(tie)(tie)(tie)、低壓(ya)(ya)配(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)等。
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