鑄鐵平板鑄造方法選擇的原則
2015年07月20日
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泊頭市正創機械設備制造有限公司鑄鐵平板擁有30余年經驗的廠家,樣式多種,規格齊全,可訂做,按用戶要求制作!
1,要兼顧鑄(zhu)鐵(tie)平板鑄(zhu)件(jian)的(de)度要求和成本各種鑄(zhu)造方法(fa)所獲得(de)的(de)鑄(zhu)件(jian)度不同,初投資和生產率也(ye)不一(yi)致(zhi),終的(de)經濟效(xiao)益(yi)也(ye)有(you)差異(yi)。因此,要做到多、快、好、省(sheng), 應(ying)當兼顧到各個方面。應(ying)對所選用的(de)鑄(zhu)造方法(fa)進行初步的(de)成本估算,以(yi)確定經濟效(xiao)益(yi)高又能保證鑄(zhu)件(jian)要求的(de)鑄(zhu)造方法(fa)。
2,鑄鐵平板鑄造(zao)(zao)(zao)(zao)(zao)方(fang)(fang)法(fa)(fa)應(ying)和生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)批量相適(shi)(shi)(shi)(shi)應(ying),例(li)如砂(sha)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)鑄造(zao)(zao)(zao)(zao)(zao),大(da)量生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)的(de)工(gong)(gong)廠應(ying)創(chuang)造(zao)(zao)(zao)(zao)(zao)條(tiao)件(jian)(jian)(jian)采用(yong)(yong)技術(shu)的(de)造(zao)(zao)(zao)(zao)(zao)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)、造(zao)(zao)(zao)(zao)(zao)芯(xin)(xin)方(fang)(fang)法(fa)(fa)。老式的(de)震(zhen)擊(ji)式或(huo)(huo)震(zhen)壓(ya)式造(zao)(zao)(zao)(zao)(zao)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)機生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)線(xian)生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)率不夠高(gao)(gao),工(gong)(gong)人勞(lao)動強度大(da),噪聲大(da),不適(shi)(shi)(shi)(shi)應(ying)大(da)量生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)的(de)要求(qiu),應(ying)逐步加以改造(zao)(zao)(zao)(zao)(zao)。對于(yu)小(xiao)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)鑄件(jian)(jian)(jian),可(ke)以采用(yong)(yong)水平分(fen)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)或(huo)(huo)垂直分(fen)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)無箱高(gao)(gao)壓(ya)造(zao)(zao)(zao)(zao)(zao)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)機生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)線(xian)、實型(xing)(xing)(xing)(xing)(xing)(xing)(xing)造(zao)(zao)(zao)(zao)(zao)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)效率又高(gao)(gao),占地面積也少;對于(yu)鑄件(jian)(jian)(jian)可(ke)選(xuan)用(yong)(yong)各種有箱高(gao)(gao)壓(ya)造(zao)(zao)(zao)(zao)(zao)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)機生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)線(xian)、氣沖(chong)造(zao)(zao)(zao)(zao)(zao)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)線(xian),以適(shi)(shi)(shi)(shi)應(ying)快速、高(gao)(gao)度造(zao)(zao)(zao)(zao)(zao)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)線(xian)的(de)要求(qiu),造(zao)(zao)(zao)(zao)(zao)芯(xin)(xin)方(fang)(fang)法(fa)(fa)可(ke)選(xuan)用(yong)(yong):冷(leng)芯(xin)(xin)盒、熱芯(xin)(xin)盒、殼芯(xin)(xin)等(deng)制芯(xin)(xin)方(fang)(fang)法(fa)(fa)。中等(deng)批量的(de)大(da)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)鑄件(jian)(jian)(jian)可(ke)以考(kao)慮應(ying)用(yong)(yong)樹(shu)脂(zhi)自硬砂(sha)造(zao)(zao)(zao)(zao)(zao)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)和造(zao)(zao)(zao)(zao)(zao)芯(xin)(xin)。單件(jian)(jian)(jian)小(xiao)批生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)的(de)重型(xing)(xing)(xing)(xing)(xing)(xing)(xing)鑄件(jian)(jian)(jian),手工(gong)(gong)造(zao)(zao)(zao)(zao)(zao)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)仍是重要的(de)方(fang)(fang)法(fa)(fa),手工(gong)(gong)造(zao)(zao)(zao)(zao)(zao)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)能(neng)適(shi)(shi)(shi)(shi)應(ying)各種復(fu)雜的(de)要求(qiu)比(bi)較靈活,不要求(qiu)很多工(gong)(gong)藝裝備。批量生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)或(huo)(huo)長期生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)的(de)定(ding)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)產(chan)(chan)(chan)品采用(yong)(yong)多箱造(zao)(zao)(zao)(zao)(zao)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)、劈箱造(zao)(zao)(zao)(zao)(zao)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)法(fa)(fa)比(bi)較適(shi)(shi)(shi)(shi)宜,雖(sui)然模具(ju)(ju)、砂(sha)箱等(deng)開始投資高(gao)(gao),但可(ke)從節約造(zao)(zao)(zao)(zao)(zao)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)工(gong)(gong)時、提高(gao)(gao)產(chan)(chan)(chan)品質量方(fang)(fang)面得到補(bu)償(chang)。低壓(ya)鑄造(zao)(zao)(zao)(zao)(zao)、壓(ya)鑄、離心鑄造(zao)(zao)(zao)(zao)(zao)等(deng)鑄造(zao)(zao)(zao)(zao)(zao)方(fang)(fang)法(fa)(fa),因設備和模具(ju)(ju)的(de)價(jia)格昂貴,所(suo)以只(zhi)適(shi)(shi)(shi)(shi)合批量生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)。
3,鑄鐵平板造型(xing)(xing)方法(fa)應(ying)適合(he)工廠(chang)條(tiao)件(jian),例如同樣(yang)是(shi)生產(chan)(chan)大型(xing)(xing)機床床身等鑄件(jian),一般采用(yong)組(zu)芯(xin)造型(xing)(xing)法(fa),不制作(zuo)模樣(yang)和砂箱(xiang),在地(di)坑中(zhong)組(zu)芯(xin);而另外的工廠(chang)則(ze)采用(yong)砂箱(xiang)造型(xing)(xing)法(fa),制作(zuo)模樣(yang)。不同的企(qi)業生產(chan)(chan)條(tiao)件(jian)(包括設備、場(chang)地(di)、員工素質等)、生產(chan)(chan)習慣、所積累的經驗各不一樣(yang),應(ying)該根據這些條(tiao)件(jian)考慮適合(he)做(zuo)什(shen)么(me)產(chan)(chan)品和不適合(he)(或不能)做(zuo)什(shen)么(me)產(chan)(chan)品。
4,優先采用(yong)砂型(xing)鑄(zhu)(zhu)造(zao)據統計在全(quan)部鑄(zhu)(zhu)鐵平(ping)板鑄(zhu)(zhu)件產(chan)(chan)量中(zhong),60~70的(de)鑄(zhu)(zhu)件是用(yong)砂型(xing)生(sheng)產(chan)(chan)的(de),而且其(qi)中(zhong)70左右(you)是用(yong)粘土砂型(xing)生(sheng)產(chan)(chan)的(de)。主(zhu)要原因是砂型(xing)鑄(zhu)(zhu)造(zao)較之其(qi)它鑄(zhu)(zhu)造(zao)方法(fa)成(cheng)本低、生(sheng)產(chan)(chan)工藝簡單、生(sheng)產(chan)(chan)周期短。
一般來(lai)講,對于中、大型鑄(zhu)件,鑄(zhu)鐵件可以(yi)用樹脂自硬砂(sha)(sha)型、鑄(zhu)鋼件可以(yi)用水玻璃砂(sha)(sha)型來(lai)生產(chan),可以(yi)獲得尺寸、表面(mian)光潔的(de)鑄(zhu)件,但成(cheng)本較高。當(dang)然,砂(sha)(sha)型鑄(zhu)造生產(chan)的(de)鑄(zhu)件度(du)、表面(mian)光潔度(du)、材(cai)質的(de)密度(du)和金相組(zu)織、機械(xie)性(xing)能(neng)等(deng)(deng)方面(mian)往(wang)往(wang)較差,所以(yi)當(dang)鑄(zhu)件的(de)這些性(xing)能(neng)要(yao)求(qiu) 高時,應該采用其它鑄(zhu)造方法(fa),例如(ru)熔模(失臘)鑄(zhu)造、壓鑄(zhu)、低壓鑄(zhu)造等(deng)(deng)等(deng)(deng)。
泊鑄機械量具(ju)廠鑄鐵(tie)平(ping)板(ban)完全按照 標準確GB7947-1999《鑄鐵(tie)平(ping)板(ban)》級別分(fen)為(wei)0、1、2、3, 刨5個級別。其(qi)中2級以上為(wei)檢驗平(ping)板(ban),3級為(wei)劃線平(ping)板(ban)或基礎(chu)平(ping)板(ban)。
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