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(yao)兼顧鑄(zhu)(zhu)鐵平板鑄(zhu)(zhu)件(jian)的(de)度要(yao)求(qiu)和成本(ben)各種鑄(zhu)(zhu)造(zao)方(fang)法所(suo)獲得的(de)鑄(zhu)(zhu)件(jian)度不(bu)同,初投資和生產率也(ye)不(bu)一致(zhi),終的(de)經(jing)濟效益也(ye)有差異。因此,要(yao)做(zuo)到多、快、好、省, 應當(dang)兼顧到各個方(fang)面。應對所(suo)選用(yong)的(de)鑄(zhu)(zhu)造(zao)方(fang)法進行初步(bu)的(de)成本(ben)估算,以確定經(jing)濟效益高(gao)又能保證鑄(zhu)(zhu)件(jian)要(yao)求(qiu)的(de)鑄(zhu)(zhu)造(zao)方(fang)法。
2,鑄(zhu)(zhu)鐵平(ping)板(ban)鑄(zhu)(zhu)造(zao)(zao)(zao)方(fang)(fang)法(fa)(fa)應和生(sheng)產(chan)(chan)批(pi)(pi)量相適應,例如砂(sha)(sha)(sha)型(xing)(xing)(xing)鑄(zhu)(zhu)造(zao)(zao)(zao),大(da)量生(sheng)產(chan)(chan)的(de)(de)(de)(de)工(gong)(gong)廠應創造(zao)(zao)(zao)條件(jian)采用(yong)(yong)技術(shu)的(de)(de)(de)(de)造(zao)(zao)(zao)型(xing)(xing)(xing)、造(zao)(zao)(zao)芯(xin)(xin)(xin)方(fang)(fang)法(fa)(fa)。老式的(de)(de)(de)(de)震(zhen)擊式或(huo)震(zhen)壓(ya)(ya)(ya)式造(zao)(zao)(zao)型(xing)(xing)(xing)機(ji)生(sheng)產(chan)(chan)線生(sheng)產(chan)(chan)率(lv)不(bu)夠高,工(gong)(gong)人勞動(dong)強度(du)大(da),噪聲大(da),不(bu)適應大(da)量生(sheng)產(chan)(chan)的(de)(de)(de)(de)要(yao)(yao)(yao)求,應逐步(bu)加以(yi)(yi)改造(zao)(zao)(zao)。對于(yu)小型(xing)(xing)(xing)鑄(zhu)(zhu)件(jian),可(ke)(ke)以(yi)(yi)采用(yong)(yong)水平(ping)分型(xing)(xing)(xing)或(huo)垂直分型(xing)(xing)(xing)的(de)(de)(de)(de)無(wu)箱高壓(ya)(ya)(ya)造(zao)(zao)(zao)型(xing)(xing)(xing)機(ji)生(sheng)產(chan)(chan)線、實型(xing)(xing)(xing)造(zao)(zao)(zao)型(xing)(xing)(xing)生(sheng)產(chan)(chan)效率(lv)又(you)高,占地面積也少;對于(yu)鑄(zhu)(zhu)件(jian)可(ke)(ke)選用(yong)(yong)各種(zhong)有箱高壓(ya)(ya)(ya)造(zao)(zao)(zao)型(xing)(xing)(xing)機(ji)生(sheng)產(chan)(chan)線、氣沖造(zao)(zao)(zao)型(xing)(xing)(xing)線,以(yi)(yi)適應快速、高度(du)造(zao)(zao)(zao)型(xing)(xing)(xing)生(sheng)產(chan)(chan)線的(de)(de)(de)(de)要(yao)(yao)(yao)求,造(zao)(zao)(zao)芯(xin)(xin)(xin)方(fang)(fang)法(fa)(fa)可(ke)(ke)選用(yong)(yong):冷(leng)芯(xin)(xin)(xin)盒(he)、熱芯(xin)(xin)(xin)盒(he)、殼(ke)芯(xin)(xin)(xin)等制芯(xin)(xin)(xin)方(fang)(fang)法(fa)(fa)。中(zhong)等批(pi)(pi)量的(de)(de)(de)(de)大(da)型(xing)(xing)(xing)鑄(zhu)(zhu)件(jian)可(ke)(ke)以(yi)(yi)考慮應用(yong)(yong)樹脂自硬砂(sha)(sha)(sha)造(zao)(zao)(zao)型(xing)(xing)(xing)和造(zao)(zao)(zao)芯(xin)(xin)(xin)。單件(jian)小批(pi)(pi)生(sheng)產(chan)(chan)的(de)(de)(de)(de)重型(xing)(xing)(xing)鑄(zhu)(zhu)件(jian),手工(gong)(gong)造(zao)(zao)(zao)型(xing)(xing)(xing)仍是重要(yao)(yao)(yao)的(de)(de)(de)(de)方(fang)(fang)法(fa)(fa),手工(gong)(gong)造(zao)(zao)(zao)型(xing)(xing)(xing)能適應各種(zhong)復雜的(de)(de)(de)(de)要(yao)(yao)(yao)求比較靈活,不(bu)要(yao)(yao)(yao)求很多工(gong)(gong)藝裝備(bei)。批(pi)(pi)量生(sheng)產(chan)(chan)或(huo)長期生(sheng)產(chan)(chan)的(de)(de)(de)(de)定型(xing)(xing)(xing)產(chan)(chan)品采用(yong)(yong)多箱造(zao)(zao)(zao)型(xing)(xing)(xing)、劈箱造(zao)(zao)(zao)型(xing)(xing)(xing)法(fa)(fa)比較適宜,雖然模具、砂(sha)(sha)(sha)箱等開始(shi)投資高,但可(ke)(ke)從節約造(zao)(zao)(zao)型(xing)(xing)(xing)工(gong)(gong)時、提高產(chan)(chan)品質量方(fang)(fang)面得到(dao)補償。低壓(ya)(ya)(ya)鑄(zhu)(zhu)造(zao)(zao)(zao)、壓(ya)(ya)(ya)鑄(zhu)(zhu)、離心鑄(zhu)(zhu)造(zao)(zao)(zao)等鑄(zhu)(zhu)造(zao)(zao)(zao)方(fang)(fang)法(fa)(fa),因設(she)備(bei)和模具的(de)(de)(de)(de)價格昂貴,所以(yi)(yi)只適合(he)批(pi)(pi)量生(sheng)產(chan)(chan)。
3,鑄鐵平(ping)板造(zao)型方法應(ying)適(shi)合工廠條件,例如(ru)同樣是(shi)生產大型機床床身(shen)等鑄件,一(yi)般采(cai)用組(zu)芯(xin)造(zao)型法,不(bu)制(zhi)(zhi)作(zuo)模樣和砂箱,在地(di)坑(keng)中組(zu)芯(xin);而另(ling)外的(de)工廠則采(cai)用砂箱造(zao)型法,制(zhi)(zhi)作(zuo)模樣。不(bu)同的(de)企業生產條件(包(bao)括設備、場地(di)、員工素質等)、生產習(xi)慣、所積累(lei)的(de)經驗(yan)各不(bu)一(yi)樣,應(ying)該根據這些條件考(kao)慮適(shi)合做什么產品和不(bu)適(shi)合(或不(bu)能(neng))做什么產品。
4,優(you)先采用砂(sha)型鑄(zhu)(zhu)(zhu)造據(ju)統計(ji)在全部鑄(zhu)(zhu)(zhu)鐵平板(ban)鑄(zhu)(zhu)(zhu)件(jian)產(chan)(chan)(chan)(chan)量中(zhong),60~70的鑄(zhu)(zhu)(zhu)件(jian)是(shi)用砂(sha)型生(sheng)產(chan)(chan)(chan)(chan)的,而且其(qi)中(zhong)70左右是(shi)用粘土砂(sha)型生(sheng)產(chan)(chan)(chan)(chan)的。主(zhu)要原因是(shi)砂(sha)型鑄(zhu)(zhu)(zhu)造較之(zhi)其(qi)它鑄(zhu)(zhu)(zhu)造方(fang)法成(cheng)本低、生(sheng)產(chan)(chan)(chan)(chan)工藝簡單、生(sheng)產(chan)(chan)(chan)(chan)周期短。
一(yi)般(ban)來(lai)(lai)講,對于中、大型鑄(zhu)(zhu)件(jian),鑄(zhu)(zhu)鐵件(jian)可以用(yong)樹脂自硬砂型、鑄(zhu)(zhu)鋼(gang)件(jian)可以用(yong)水玻璃砂型來(lai)(lai)生產,可以獲得尺(chi)寸、表面(mian)光(guang)潔(jie)的鑄(zhu)(zhu)件(jian),但成(cheng)本較高(gao)。當然,砂型鑄(zhu)(zhu)造生產的鑄(zhu)(zhu)件(jian)度、表面(mian)光(guang)潔(jie)度、材質的密度和金(jin)相組織、機械(xie)性能(neng)等方(fang)面(mian)往往較差,所以當鑄(zhu)(zhu)件(jian)的這些性能(neng)要求 高(gao)時,應該采用(yong)其它鑄(zhu)(zhu)造方(fang)法(fa),例如熔模(失臘)鑄(zhu)(zhu)造、壓鑄(zhu)(zhu)、低壓鑄(zhu)(zhu)造等等。
泊鑄機械量具廠鑄鐵平板(ban)(ban)(ban)完全按(an)照(zhao) 標(biao)準確GB7947-1999《鑄鐵平板(ban)(ban)(ban)》級別分為0、1、2、3, 刨(bao)5個(ge)級別。其中(zhong)2級以(yi)上(shang)為檢驗平板(ban)(ban)(ban),3級為劃線平板(ban)(ban)(ban)或基礎平板(ban)(ban)(ban)。
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