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?裝載機配重004A

2021-04-13 10:34:24
?裝載機配重004A
詳(xiang)細介紹:

  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(che)間里,造型(xing)造芯都實現了(le)機械化或自動化。常用的砂型(xing)造型(xing)造芯設備有高、中、低壓造型(xing)機、拋(pao)砂機、無箱射(she)壓造型(xing)機、射(she)芯機、冷和(he)熱芯盒(he)機等。

  叉車配重鐵(tie)(tie)工藝可(ke)(ke)分為三(san)個基本(ben)部分,即配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)金(jin)(jin)(jin)屬(shu)(shu)準備、鑄(zhu)型準備和(he)鑄(zhu)件處(chu)理。 配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)金(jin)(jin)(jin)屬(shu)(shu)是(shi)指配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)生產中用于澆(jiao)注(zhu)鑄(zhu)件的(de)金(jin)(jin)(jin)屬(shu)(shu)材料(liao),它(ta)是(shi)以一(yi)種(zhong)金(jin)(jin)(jin)屬(shu)(shu)元(yuan)素為主要(yao)成(cheng)分,并加(jia)入其他金(jin)(jin)(jin)屬(shu)(shu)或非金(jin)(jin)(jin)屬(shu)(shu)元(yuan)素而組成(cheng)的(de)合金(jin)(jin)(jin),習慣(guan)上稱為配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)合金(jin)(jin)(jin),主要(yao)有鑄(zhu)鐵(tie)(tie)、鑄(zhu)鋼和(he)配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)有色(se)合金(jin)(jin)(jin)。叉(cha)(cha)車配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)按造(zao)型材料(liao)的(de)不同,又可(ke)(ke)分為兩大(da)類(lei)(lei):一(yi)類(lei)(lei)以天(tian)然(ran)礦產砂石作為主要(yao)造(zao)型材料(liao),如(ru)熔(rong)模配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、殼型配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、負壓配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、泥(ni)型配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、實(shi)型配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、陶瓷型配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)等;一(yi)類(lei)(lei)以金(jin)(jin)(jin)屬(shu)(shu)作為主要(yao)鑄(zhu)型材料(liao),如(ru)金(jin)(jin)(jin)屬(shu)(shu)型配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、離(li)心配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、連續配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)、叉(cha)(cha)車配(pei)(pei)件鐵(tie)(tie)、低壓配(pei)(pei)重(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鐵(tie)(tie)等。

  配重塊結構(gou)設(she)計(ji)(ji)除應(ying)符合機(ji)器設(she)備(bei)本身的要(yao)求和(he)機(ji)械加工工藝(yi)性的要(yao)求外,還應(ying)符合鑄造工藝(yi)的要(yao)求,配重(zhong)塊的結構(gou)設(she)計(ji)(ji)應(ying)注意(yi)以(yi)下(xia)幾點:

  一、要便于制(zhi)造(zao)模型、芯盒和造(zao)型:

  1)配重塊的外(wai)形(xing)應力求(qiu)簡單,以(yi)便于起模,應盡(jin)量使鑄(zhu)造分型面為平面,且數目小;

  2)配重(zhong)塊的內腔應(ying)(ying)力(li)求鑄造時不(bu)用或少用型芯,當采用型芯時,應(ying)(ying)方便其支撐(cheng)、固定及排氣出砂,時應(ying)(ying)設有(you)足夠的工藝孔;

  3)對(dui)于配重塊內外側(ce)面及加強(qiang)肋等結構,應(ying)在起模方(fang)向設有的結構斜(xie)度;

  4)配(pei)重(zhong)塊(kuai)上(shang)(shang)的(de)(de)凸(tu)臺部分與配(pei)重(zhong)鐵本體不應(ying)相(xiang)差過大,好(hao)(hao)取(qu)同一(yi)高度(du),同一(yi)面(mian)上(shang)(shang)的(de)(de)距(ju)離(li)較近的(de)(de)幾個(ge)凸(tu)臺,好(hao)(hao)連成(cheng)整體的(de)(de)凸(tu)起部分。

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