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軋制成形石墨或石墨板

作者:     發布日期:2023-02-18

軋制成形石墨或石墨板

軋制(zhi)(zhi)(zhi)成形(xing)石(shi)(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)(mo)(mo)或(huo)石(shi)(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)(mo)(mo)板(ban)(ban)(ban)(ban)(ban)(ban) 石(shi)(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)(mo)(mo)進行(xing)碾(nian)壓(ya)(ya)(ya)成型法:主(zhu)(zhu)要(yao)可(ke)(ke)以用(yong)(yong)來作(zuo)(zuo)為(wei)壓(ya)(ya)(ya)制(zhi)(zhi)(zhi)中(zhong)(zhong)國石(shi)(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)(mo)(mo)板(ban)(ban)(ban)(ban)(ban)(ban)材(cai)(cai)或(huo)紙箔,分為(wei)一個(ge)單(dan)(dan)(dan)層(ceng)平(ping)板(ban)(ban)(ban)(ban)(ban)(ban)連續(xu)碾(nian)壓(ya)(ya)(ya)和(he)(he)多(duo)(duo)(duo)層(ceng)平(ping)板(ban)(ban)(ban)(ban)(ban)(ban)連續(xu)碾(nian)壓(ya)(ya)(ya)兩種。石(shi)(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)(mo)(mo)塊一種人(ren)造(zao)石(shi)(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)(mo)(mo),而(er)(er)人(ren)造(zao)石(shi)(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)(mo)(mo)是焦(jiao)類產(chan)品(pin)人(ren)工(gong)(gong)(gong)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)等工(gong)(gong)(gong)藝(yi)制(zhi)(zhi)(zhi)成的(de)(de)(de)(de)(de)。一般如(ru)果提純做(zuo)高(gao)(gao)純,或(huo)者做(zuo)碳纖維(wei)的(de)(de)(de)(de)(de)話附加(jia)(jia)(jia)(jia)(jia)值就(jiu)(jiu)高(gao)(gao)了。石(shi)(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)(mo)(mo)棒常用(yong)(yong)于高(gao)(gao)溫(wen)真空爐的(de)(de)(de)(de)(de)電(dian)(dian)熱(re)(re)(re)體(ti),最(zui)(zui)高(gao)(gao)使用(yong)(yong)溫(wen)度(du)(du)可(ke)(ke)達(da)3000℃,在(zai)高(gao)(gao)溫(wen)下易于氧化(hua),除(chu)真空外(wai),只能(neng)在(zai)中(zhong)(zhong)性(xing)氣(qi)(qi)氛或(huo)還原性(xing)氣(qi)(qi)氛中(zhong)(zhong)使用(yong)(yong)。它的(de)(de)(de)(de)(de)熱(re)(re)(re)膨(peng)(peng)脹(zhang)(zhang)系(xi)數較(jiao)(jiao)小,熱(re)(re)(re)導(dao)率(lv)較(jiao)(jiao)大(da),電(dian)(dian)阻系(xi)數為(wei)(8~13)×10-6 Ω·m,加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)性(xing)較(jiao)(jiao)SiC、MoSi2棒好(hao),耐高(gao)(gao)溫(wen),耐極(ji)(ji)冷極(ji)(ji)熱(re)(re)(re)性(xing)好(hao),價格較(jiao)(jiao)便宜。石(shi)(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)(mo)(mo)電(dian)(dian)極(ji)(ji)主(zhu)(zhu)要(yao)以石(shi)(shi)(shi)(shi)(shi)(shi)油焦(jiao)、針狀焦(jiao)為(wei)原料(liao)(liao)(liao),煤(mei)瀝青作(zuo)(zuo)結合(he)劑(ji),經(jing)煅燒(shao)、配(pei)料(liao)(liao)(liao)、混(hun)捏、壓(ya)(ya)(ya)型、焙(bei)(bei)燒(shao)、石(shi)(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)(mo)(mo)化(hua)、機(ji)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)而(er)(er)制(zhi)(zhi)(zhi)成,是在(zai)電(dian)(dian)弧爐中(zhong)(zhong)以電(dian)(dian)弧形(xing)式(shi)(shi)釋(shi)放電(dian)(dian)能(neng)對爐料(liao)(liao)(liao)進行(xing)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)熔化(hua)的(de)(de)(de)(de)(de)導(dao)體(ti),根(gen)據其質量指標(biao)高(gao)(gao)低,可(ke)(ke)分為(wei)普通功(gong)(gong)率(lv)、高(gao)(gao)功(gong)(gong)率(lv)和(he)(he)超高(gao)(gao)功(gong)(gong)率(lv)。石(shi)(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)(mo)(mo)電(dian)(dian)極(ji)(ji)主(zhu)(zhu)要(yao)包括普通功(gong)(gong)率(lv)石(shi)(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)(mo)(mo)電(dian)(dian)極(ji)(ji)、抗氧化(hua)涂層(ceng)石(shi)(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)(mo)(mo)電(dian)(dian)極(ji)(ji)、高(gao)(gao)功(gong)(gong)率(lv)石(shi)(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)(mo)(mo)電(dian)(dian)極(ji)(ji)以及超高(gao)(gao)功(gong)(gong)率(lv)石(shi)(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)(mo)(mo)電(dian)(dian)極(ji)(ji)四(si)類。 如(ru)圖1所示,連續(xu)的(de)(de)(de)(de)(de)單(dan)(dan)(dan)層(ceng)板(ban)(ban)(ban)(ban)(ban)(ban)的(de)(de)(de)(de)(de)軋制(zhi)(zhi)(zhi)方(fang)法 這(zhe)種方(fang)式(shi)(shi)碾(nian)壓(ya)(ya)(ya)法不(bu)用(yong)(yong)學習任何一種粘(zhan)(zhan)結劑(ji)就(jiu)(jiu)可(ke)(ke)以將(jiang)柔性(xing)石(shi)(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)(mo)(mo)壓(ya)(ya)(ya)制(zhi)(zhi)(zhi)成板(ban)(ban)(ban)(ban)(ban)(ban)材(cai)(cai)。整個(ge)施工(gong)(gong)(gong)工(gong)(gong)(gong)藝(yi)設計過程(cheng)是在(zai)裝(zhuang)(zhuang)有滾(gun)(gun)輪碾(nian)壓(ya)(ya)(ya)機(ji)的(de)(de)(de)(de)(de)專用(yong)(yong)網絡(luo)設備上(shang)進行(xing)的(de)(de)(de)(de)(de)。 滾(gun)(gun)筒(tong)結構(gou):(1)裝(zhuang)(zhuang)有蝸(gua)桿石(shi)(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)(mo)(mo)的(de)(de)(de)(de)(de)料(liao)(liao)(liao)斗(2)振動(dong)送料(liao)(liao)(liao)裝(zhuang)(zhuang)置(3)傳送帶(dai)(4)四(si)個(ge)壓(ya)(ya)(ya)力輥(gun)(gun)(5)一對加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)器(6)滾(gun)(gun)筒(tong)(7)壓(ya)(ya)(ya)花或(huo)花紋滾(gun)(gun)筒(tong)(8)和(he)(he)滾(gun)(gun)筒(tong)(9)切割刀(10)成品(pin)輥(gun)(gun) 工(gong)(gong)(gong)作(zuo)(zuo)過程(cheng): 高(gao)(gao)純石(shi)(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)(mo)(mo)從料(liao)(liao)(liao)斗進入(ru)進料(liao)(liao)(liao)裝(zhuang)(zhuang)置,落在(zai)輸送帶(dai)上(shang)。 經(jing)壓(ya)(ya)(ya)輥(gun)(gun)軋制(zhi)(zhi)(zhi)后(hou)(hou)形(xing)成一定(ding)厚(hou)(hou)(hou)(hou)度(du)(du)的(de)(de)(de)(de)(de)材(cai)(cai)料(liao)(liao)(liao)層(ceng)。 加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)裝(zhuang)(zhuang)置產(chan)生(sheng)高(gao)(gao)溫(wen)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re),去除(chu)材(cai)(cai)料(liao)(liao)(liao)層(ceng)中(zhong)(zhong)殘留的(de)(de)(de)(de)(de)氣(qi)(qi)體(ti),使未膨(peng)(peng)脹(zhang)(zhang)石(shi)(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)(mo)(mo)最(zui)(zui)后(hou)(hou)膨(peng)(peng)脹(zhang)(zhang)。 然(ran)(ran)后(hou)(hou)將(jiang)初(chu)步成型的(de)(de)(de)(de)(de)反(fan)料(liao)(liao)(liao)送入(ru)控制(zhi)(zhi)(zhi)厚(hou)(hou)(hou)(hou)度(du)(du)的(de)(de)(de)(de)(de)輥(gun)(gun)中(zhong)(zhong),再按規(gui)定(ding)尺(chi)寸(cun)壓(ya)(ya)(ya)制(zhi)(zhi)(zhi),得到(dao)厚(hou)(hou)(hou)(hou)度(du)(du)均勻、密度(du)(du)一定(ding)的(de)(de)(de)(de)(de)平(ping)板(ban)(ban)(ban)(ban)(ban)(ban)。 最(zui)(zui)后(hou)(hou),用(yong)(yong)切割機(ji)切割后(hou)(hou),將(jiang)成品(pin)滾(gun)(gun)筒(tong)卷(juan)起。 2、單(dan)(dan)(dan)層(ceng)平(ping)板(ban)(ban)(ban)(ban)(ban)(ban)碾(nian)壓(ya)(ya)(ya)法 單(dan)(dan)(dan)軋制(zhi)(zhi)(zhi),雖(sui)然(ran)(ran)壓(ya)(ya)(ya)板(ban)(ban)(ban)(ban)(ban)(ban)順利,但不(bu)能(neng)太厚(hou)(hou)(hou)(hou)。當(dang)形(xing)成厚(hou)(hou)(hou)(hou)的(de)(de)(de)(de)(de),其均勻性(xing)和(he)(he)密度(du)(du)都(dou)難以保證。以產(chan)生(sheng)厚(hou)(hou)(hou)(hou)的(de)(de)(de)(de)(de),多(duo)(duo)(duo)層(ceng)基板(ban)(ban)(ban)(ban)(ban)(ban)重(zhong)疊(die),壓(ya)(ya)(ya)成一多(duo)(duo)(duo)層(ceng)復合(he)板(ban)(ban)(ban)(ban)(ban)(ban)。每兩個(ge)之間(jian)滾(gun)(gun)動(dong),成型,然(ran)(ran)后(hou)(hou)添加(jia)(jia)(jia)(jia)(jia)粘(zhan)(zhan)合(he)劑(ji)。模制(zhi)(zhi)(zhi)到(dao)一熱(re)(re)(re)處理(li)后(hou)(hou)以硬化(hua)粘(zhan)(zhan)合(he)劑(ji)和(he)(he)碳化(hua)。多(duo)(duo)(duo)層(ceng)板(ban)(ban)(ban)(ban)(ban)(ban)軋制(zhi)(zhi)(zhi)過程(cheng)中(zhong)(zhong)的(de)(de)(de)(de)(de)多(duo)(duo)(duo)層(ceng)連續(xu)軋制(zhi)(zhi)(zhi)機(ji)上(shang)進行(xing)的(de)(de)(de)(de)(de)。 多(duo)(duo)(duo)層(ceng)進行(xing)連續(xu)不(bu)斷碾(nian)壓(ya)(ya)(ya)機(ji)工(gong)(gong)(gong)作(zuo)(zuo)過程(cheng):由單(dan)(dan)(dan)板(ban)(ban)(ban)(ban)(ban)(ban)繞棍引出單(dan)(dan)(dan)板(ban)(ban)(ban)(ban)(ban)(ban),經(jing)過粘(zhan)(zhan)結劑(ji)涂輥(gun)(gun)把(ba)兩面(mian)土上(shang)粘(zhan)(zhan)結劑(ji)后(hou)(hou),與繞輥(gun)(gun)和(he)(he)單(dan)(dan)(dan)板(ban)(ban)(ban)(ban)(ban)(ban)相合(he),成為(wei)問題三和(he)(he)厚(hou)(hou)(hou)(hou)板(ban)(ban)(ban)(ban)(ban)(ban),進入(ru)輥(gun)(gun)的(de)(de)(de)(de)(de)間(jian)隙碾(nian)壓(ya)(ya)(ya)成一定(ding)時間(jian)厚(hou)(hou)(hou)(hou)度(du)(du)。再送入(ru)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)器中(zhong)(zhong)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)烘干(gan)。通過設計厚(hou)(hou)(hou)(hou)度(du)(du)可(ke)(ke)以控制(zhi)(zhi)(zhi)輥(gun)(gun),調整結構(gou)厚(hou)(hou)(hou)(hou)度(du)(du)從而(er)(er)達(da)到(dao)國家規(gui)定(ding)主(zhu)(zhu)要(yao)尺(chi)寸(cun),然(ran)(ran)后(hou)(hou)我們(men)送入(ru)焙(bei)(bei)燒(shao)處理(li)裝(zhuang)(zhuang)置中(zhong)(zhong)焙(bei)(bei)燒(shao)。當(dang)粘(zhan)(zhan)結劑(ji)碳化(hua)后(hou)(hou),在(zai)用(yong)(yong)自己加(jia)(jia)(jia)(jia)(jia)壓(ya)(ya)(ya)輥(gun)(gun)最(zui)(zui)后(hou)(hou)利用(yong)(yong)加(jia)(jia)(jia)(jia)(jia)壓(ya)(ya)(ya)成型。 連續(xu)軋制(zhi)(zhi)(zhi)階段可(ke)(ke)被按壓(ya)(ya)(ya)柔性(xing)石(shi)(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)(mo)(mo)片(pian)在(zai)厚(hou)(hou)(hou)(hou)度(du)(du)為(wei)0.6?2毫米,比單(dan)(dan)(dan)一軋制(zhi)(zhi)(zhi)機(ji)更好(hao),但也會有缺點,因為(wei)在(zai)片(pian)材(cai)(cai)剝(bo)離的(de)(de)(de)(de)(de)厚(hou)(hou)(hou)(hou)度(du)(du),于使用(yong)(yong)的(de)(de)(de)(de)(de)麻煩。它會導(dao)致殘留在(zai)中(zhong)(zhong)間(jian)層(ceng)間(jian)泄漏氣(qi)(qi)體(ti)被壓(ya)(ya)(ya)縮時,防止層(ceng)間(jian)緊(jin)密。改進的(de)(de)(de)(de)(de)辦法是解(jie)決(jue)排氣(qi)(qi)過程(cheng)中(zhong)(zhong)的(de)(de)(de)(de)(de)緊(jin)迫問題。