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鑄鐵配重塊是用于增(zeng)加自身重量(liang)來(lai)保持平衡的(de)(de)重物,是將噴丸機熔煉成符合 要(yao)求的(de)(de)液體并澆進鑄型里(li),經冷卻凝固、清整處理后得到有預定(ding)形狀、尺寸和性能(neng)的(de)(de)鑄件的(de)(de)工藝過程。現代機械制造工業(ye)的(de)(de)基礎工藝之一。
工(gong)作面(mian)小(xiao)范圍內的局部變化是(shi)(shi)指(zhi)(zhi)加工(gong)表面(mian)不平整(zheng),有變形,灰口鐵(tie)可以看作是(shi)(shi)鋼的基體與片(pian)狀石(shi)墨(mo)的夾雜。因(yin)此石(shi)墨(mo)片(pian)越少,越細(xi),為了(le)保證鑄(zhu)鐵(tie)在(zai)澆(jiao)鑄(zhu)能夠得(de)到灰口,且(qie)不至于得(de)到過多和粗大的石(shi)墨(mo)片(pian),這里所說的工(gong)作面(mian)小(xiao)范圍,對(dui)(dui)小(xiao)鑄(zhu)鐵(tie)平板(ban)(ban)(ban)而言(yan)是(shi)(shi)局部位置(zhi),對(dui)(dui)大鑄(zhu)鐵(tie)平板(ban)(ban)(ban)而言(yan)是(shi)(shi)局部面(mian)積。鑄(zhu)鐵(tie)平板(ban)(ban)(ban)的平整(zheng)性反映(ying)了(le)鑄(zhu)鐵(tie)平板(ban)(ban)(ban)局部誤差鑄(zhu)鐵(tie)平板(ban)(ban)(ban)的局部誤差是(shi)(shi)指(zhi)(zhi)鑄(zhu)鐵(tie)平板(ban)(ban)(ban)工(gong)作面(mian)局部平面(mian)度(du)加工(gong)質量(liang),即表面(mian)粗糙度(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,造型(xing)造芯都實現了機械化或自(zi)動化。常用(yong)的砂型(xing)造型(xing)造芯設備有高、中、低壓造型(xing)機、拋(pao)砂機、無箱射壓造型(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(fen)為(wei)三個基本部分(fen),即配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)金(jin)(jin)屬(shu)(shu)準備、鑄(zhu)(zhu)型(xing)(xing)(xing)準備和(he)(he)鑄(zhu)(zhu)件(jian)處理。 配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)金(jin)(jin)屬(shu)(shu)是指(zhi)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)生產(chan)中用(yong)于澆注鑄(zhu)(zhu)件(jian)的(de)金(jin)(jin)屬(shu)(shu)材(cai)(cai)料,它是以(yi)(yi)一(yi)種金(jin)(jin)屬(shu)(shu)元(yuan)素(su)為(wei)主要(yao)成(cheng)分(fen),并加入其他金(jin)(jin)屬(shu)(shu)或非金(jin)(jin)屬(shu)(shu)元(yuan)素(su)而組成(cheng)的(de)合金(jin)(jin),習慣上稱為(wei)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)合金(jin)(jin),主要(yao)有鑄(zhu)(zhu)鐵(tie)(tie)(tie)(tie)、鑄(zhu)(zhu)鋼和(he)(he)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)有色合金(jin)(jin)。叉(cha)車(che)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)按(an)造(zao)型(xing)(xing)(xing)材(cai)(cai)料的(de)不同,又可分(fen)為(wei)兩大類:一(yi)類以(yi)(yi)天然礦產(chan)砂石作為(wei)主要(yao)造(zao)型(xing)(xing)(xing)材(cai)(cai)料,如熔模配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、殼型(xing)(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、負(fu)壓(ya)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、泥型(xing)(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、實(shi)型(xing)(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、陶瓷型(xing)(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)等;一(yi)類以(yi)(yi)金(jin)(jin)屬(shu)(shu)作為(wei)主要(yao)鑄(zhu)(zhu)型(xing)(xing)(xing)材(cai)(cai)料,如金(jin)(jin)屬(shu)(shu)型(xing)(xing)(xing)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、離心(xin)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、連續配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)、叉(cha)車(che)配(pei)(pei)(pei)件(jian)鐵(tie)(tie)(tie)(tie)、低壓(ya)配(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)(tie)等。
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