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?裝載機配重004A

2021-04-13 10:34:24

次

詳細介(jie)紹：

　　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)(xing)造芯都(dou)實現了(le)機械化(hua)(hua)或自動化(hua)(hua)。常用的砂(sha)型(xing)(xing)造型(xing)(xing)造芯設備有高、中、低壓(ya)造型(xing)(xing)機、拋砂(sha)機、無箱射(she)壓(ya)造型(xing)(xing)機、射(she)芯機、冷和(he)熱芯盒(he)機等。

　　叉車配重鐵(tie)(tie)(tie)工(gong)藝可分(fen)為三個基本部分(fen)，即配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)金(jin)(jin)(jin)屬(shu)(shu)準備、鑄(zhu)(zhu)(zhu)型(xing)(xing)(xing)(xing)(xing)(xing)準備和鑄(zhu)(zhu)(zhu)件處理(li)。配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)金(jin)(jin)(jin)屬(shu)(shu)是指(zhi)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)生產(chan)中用于澆(jiao)注鑄(zhu)(zhu)(zhu)件的(de)金(jin)(jin)(jin)屬(shu)(shu)材料，它是以(yi)一(yi)種金(jin)(jin)(jin)屬(shu)(shu)元素為主要(yao)成分(fen)，并(bing)加(jia)入其他金(jin)(jin)(jin)屬(shu)(shu)或非金(jin)(jin)(jin)屬(shu)(shu)元素而組成的(de)合(he)金(jin)(jin)(jin)，習慣上稱(cheng)為配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)合(he)金(jin)(jin)(jin)，主要(yao)有鑄(zhu)(zhu)(zhu)鐵(tie)(tie)(tie)、鑄(zhu)(zhu)(zhu)鋼和配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)有色合(he)金(jin)(jin)(jin)。叉(cha)車配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)按造(zao)(zao)型(xing)(xing)(xing)(xing)(xing)(xing)材料的(de)不同，又可分(fen)為兩大類(lei)：一(yi)類(lei)以(yi)天然礦產(chan)砂石作為主要(yao)造(zao)(zao)型(xing)(xing)(xing)(xing)(xing)(xing)材料，如(ru)熔模配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、殼型(xing)(xing)(xing)(xing)(xing)(xing)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、負壓配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、泥型(xing)(xing)(xing)(xing)(xing)(xing)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、實型(xing)(xing)(xing)(xing)(xing)(xing)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、陶瓷型(xing)(xing)(xing)(xing)(xing)(xing)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)等;一(yi)類(lei)以(yi)金(jin)(jin)(jin)屬(shu)(shu)作為主要(yao)鑄(zhu)(zhu)(zhu)型(xing)(xing)(xing)(xing)(xing)(xing)材料，如(ru)金(jin)(jin)(jin)屬(shu)(shu)型(xing)(xing)(xing)(xing)(xing)(xing)配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、離心配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、連續配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)、叉(cha)車配(pei)(pei)(pei)(pei)件鐵(tie)(tie)(tie)、低壓配(pei)(pei)(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)(tie)等。

　　配重塊結構設(she)計(ji)除應符(fu)合機器設(she)備本(ben)身(shen)的要求(qiu)和機械加工工藝性(xing)的要求(qiu)外，還(huan)應符(fu)合鑄造工藝的要求(qiu)，配(pei)重塊(kuai)的結構設(she)計(ji)應注意(yi)以(yi)下幾點：

　　一、要便于制造(zao)模型、芯盒和(he)造(zao)型：

　　1)配重塊的外(wai)形應力(li)求簡單(dan)，以便于起(qi)模，應盡量使鑄造分型面(mian)為平面(mian)，且數目(mu)小;

　　2)配重(zhong)塊的內(nei)腔應(ying)力求鑄(zhu)造時不用或少(shao)用型芯，當(dang)采用型芯時，應(ying)方便其支撐、固(gu)定及排(pai)氣出砂，時應(ying)設(she)有足夠(gou)的工藝孔;

　　3)對于(yu)配重(zhong)塊內(nei)外側面及加(jia)強肋等(deng)結(jie)構，應在起模方向設有的結(jie)構斜(xie)度;

　　4)配(pei)重塊上的(de)凸(tu)臺(tai)部分與配(pei)重鐵(tie)本(ben)體不(bu)應相差過大，好取同一(yi)高度(du)，同一(yi)面上的(de)距離較近的(de)幾個凸(tu)臺(tai)，好連成整體的(de)凸(tu)起(qi)部分。

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