炭(tan)石(shi)墨(mo)(mo)制(zhi)品(pin)具有(you)良好的(de)(de)(de)機械加(jia)工性(xing)(xing)能(neng)，可以(yi)加(jia)工成任何(he)形(xing)狀的(de)(de)(de)制(zhi)品(pin)。但是以(yi)相(xiang)同形(xing)狀和同一(yi)尺(chi)寸的(de)(de)(de)石(shi)墨(mo)(mo)零件(jian)簡單地(di)代替(ti)金屬零件(jian)，在很(hen)多情況下不能(neng)保證機械零件(jian)的(de)(de)(de)可靠性(xing)(xing)和使用性(xing)(xing)能(neng)。因此設計人員應(ying)考慮石(shi)墨(mo)(mo)材(cai)(cai)料的(de)(de)(de)特點，特別要注意它是脆(cui)性(xing)(xing)材(cai)(cai)料，破壞前基(ji)本上(shang)沒有(you)塑性(xing)(xing)變形(xing)。它的(de)(de)(de)破壞變形(xing)是在彈性(xing)(xing)范(fan)圍之內(nei)，不超過1%。正如(ru)所有(you)的(de)(de)(de)脆(cui)性(xing)(xing)材(cai)(cai)料一(yi)樣，石(shi)墨(mo)(mo)材(cai)(cai)料對(dui)于任何(he)一(yi)個(ge)應(ying)力集中點，例如(ru)對(dui)于表面上(shang)的(de)(de)(de)易破損處(chu)、銳邊、突然改(gai)變的(de)(de)(de)橫斷面、溝(gou)槽及(ji)孔(kong)眼，都(dou)(dou)很(hen)敏(min)感(gan)，在零件(jian)的(de)(de)(de)上(shang)述部位，其強度(du)為(wei)材(cai)(cai)料極限強度(du)的(de)(de)(de)幾分之一(yi)。石(shi)墨(mo)(mo)軸承批發聯系成都(dou)(dou)格(ge)萊法特碳素(su)制(zhi)品(pin)有(you)限公司。成都(dou)(dou)石(shi)墨(mo)(mo)制(zhi)品(pin)加(jia)工服務

轉(zhuan)向輻(fu)(fu)石(shi)(shi)墨(mo)軸(zhou)承(cheng)介(jie)紹：成(cheng)(cheng)品車間的(de)轉(zhuan)向輻(fu)(fu)是(shi)設(she)備的(de)關鍵部件之一，它的(de)作(zuo)用(yong)(yong)是(shi)把半凝固狀態(tai)的(de)玻(bo)璃液從(cong)爐子底下往上拉，再(zai)轉(zhuan)90。方向向前(qian)輸送。軸(zhou)承(cheng)有冷(leng)卻系(xi)統，內通冷(leng)卻水(shui)(shui)冷(leng)卻。因(yin)此，轉(zhuan)向輻(fu)(fu)一端的(de)軸(zhou)承(cheng)還有密(mi)封作(zuo)用(yong)(yong)。原來(lai)采(cai)用(yong)(yong)盤根密(mi)封時(shi)，泄漏(lou)嚴重，經常流(liu)水(shui)(shui)，嚴重影響操作(zuo)環境的(de)衛生，并(bing)且維(wei)修(xiu)很(hen)麻(ma)煩。在改用(yong)(yong)炭石(shi)(shi)墨(mo)軸(zhou)承(cheng)的(de)初期，曾試用(yong)(yong)過未(wei)浸漬的(de)電(dian)化(hua)石(shi)(shi)墨(mo)材(cai)料(liao)，由于這種材(cai)料(liao)氣孔率大（約20%?30%）,不耐(nai)磨，密(mi)封效(xiao)果不好，泄漏(lou)量仍很(hen)大。同時(shi)，裝(zhuang)配時(shi)易碎。后(hou)來(lai)，采(cai)用(yong)(yong)浸漬巴氏(shi)合金的(de)石(shi)(shi)墨(mo)材(cai)料(liao)，效(xiao)果良(liang)好，基本上不泄漏(lou)，磨損很(hen)小，使(shi)用(yong)(yong)單位很(hen)滿意(yi)。成(cheng)(cheng)都石(shi)(shi)墨(mo)板批發價(jia)格成(cheng)(cheng)都石(shi)(shi)墨(mo)場購買聯(lian)系(xi)成(cheng)(cheng)都格萊法特碳素制品有限公司(si)。

石(shi)墨制品(pin)相關介紹(shao)：高(gao)(gao)(gao)純石(shi)墨除具有(you)(you)石(shi)墨的(de)優(you)良(liang)導(dao)電、導(dao)熱性(xing)能(neng)、耐高(gao)(gao)(gao)溫、化學穩定(ding)性(xing)好、有(you)(you)一定(ding)的(de)機械(xie)(xie)強度(du)、易于(yu)(yu)機械(xie)(xie)加工等特(te)(te)(te)性(xing)外(wai)，按照特(te)(te)(te)定(ding)用(yong)(yong)(yong)途(tu)(tu)要(yao)求(qiu)具有(you)(you)高(gao)(gao)(gao)純度(du)、高(gao)(gao)(gao)密(mi)(mi)度(du)、度(du)等特(te)(te)(te)種性(xing)能(neng)：如高(gao)(gao)(gao)純石(shi)墨含(han)碳量要(yao)大(da)于(yu)(yu)99.99％，通常(chang)分(fen)成總(zong)灰分(fen)含(han)量小于(yu)(yu)50×10-6、20×10-6、10×10-6幾級，核反應堆用(yong)(yong)(yong)石(shi)墨對(dui)雜質硼、鈮(ni)、鉭、氯等元素含(han)量有(you)(you)嚴格要(yao)求(qiu)，如硼含(han)量應小于(yu)(yu)0.2X10-6。機械(xie)(xie)密(mi)(mi)封用(yong)(yong)(yong)石(shi)墨部件要(yao)求(qiu)具備(bei)自潤滑性(xing)能(neng)、較高(gao)(gao)(gao)機械(xie)(xie)強度(du)耐沖(chong)擊等性(xing)能(neng)。火(huo)箭(jian)噴嘴、喉襯、燃氣舵(duo)用(yong)(yong)(yong)石(shi)墨需要(yao)經受3000—3200℃高(gao)(gao)(gao)溫高(gao)(gao)(gao)速(su)氣流沖(chong)刷，同時要(yao)求(qiu)火(huo)焰光(guang)亮度(du)，所以(yi)宇(yu)航用(yong)(yong)(yong)石(shi)墨必(bi)須具有(you)(you)高(gao)(gao)(gao)純度(du)、高(gao)(gao)(gao)密(mi)(mi)度(du)、度(du)等特(te)(te)(te)性(xing)。某些特(te)(te)(te)殊用(yong)(yong)(yong)途(tu)(tu)石(shi)墨還要(yao)求(qiu)具有(you)(you)高(gao)(gao)(gao)模量等特(te)(te)(te)性(xing)。

立(li)裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)法裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)爐(lu)(lu)介(jie)紹(shao)：立(li)裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)法有(you)正裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)和錯裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)兩種形式。爐(lu)(lu)芯(xin)制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)(pin)(pin)(pin)正裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)時(shi)，對(dui)(dui)于任(ren)何一(yi)(yi)根(gen)制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)(pin)(pin)(pin)來(lai)說，只(zhi)(zhi)有(you)一(yi)(yi)條高(gao)密度(du)電流(liu)加(jia)熱(re)(re)帶(dai)，這(zhe)一(yi)(yi)條加(jia)熱(re)(re)帶(dai)越寬(kuan)，制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)(pin)(pin)(pin)受熱(re)(re)相(xiang)(xiang)對(dui)(dui)均(jun)勻一(yi)(yi)些，反之，受熱(re)(re)很(hen)(hen)不(bu)均(jun)勻。錯裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)時(shi)，每根(gen)制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)(pin)(pin)(pin)存在兩條高(gao)密度(du)電流(liu)加(jia)熱(re)(re)帶(dai)，制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)(pin)(pin)(pin)受熱(re)(re)相(xiang)(xiang)對(dui)(dui)正裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)要均(jun)勻一(yi)(yi)些。因此，石(shi)墨化(hua)爐(lu)(lu)制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)(pin)(pin)(pin)裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)爐(lu)(lu)方式選(xuan)擇(ze)(ze)不(bu)當(dang)，在石(shi)墨化(hua)送(song)電過程中(zhong)，制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)(pin)(pin)(pin)周(zhou)圍溫(wen)升(sheng)速度(du)相(xiang)(xiang)差較大(da)，制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)(pin)(pin)(pin)產生的熱(re)(re)應(ying)力(li)超出(chu)了本體(ti)能夠承(cheng)受的熱(re)(re)應(ying)力(li)，極容(rong)易使制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)(pin)(pin)(pin)產生裂(lie)紋(wen)(wen)。立(li)裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)法裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)爐(lu)(lu)介(jie)紹(shao)：立(li)裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)法有(you)正裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)和錯裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)兩種形式。爐(lu)(lu)芯(xin)制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)(pin)(pin)(pin)正裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)時(shi)，對(dui)(dui)于任(ren)何一(yi)(yi)根(gen)制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)(pin)(pin)(pin)來(lai)說，只(zhi)(zhi)有(you)一(yi)(yi)條高(gao)密度(du)電流(liu)加(jia)熱(re)(re)帶(dai)，這(zhe)一(yi)(yi)條加(jia)熱(re)(re)帶(dai)越寬(kuan)，制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)(pin)(pin)(pin)受熱(re)(re)相(xiang)(xiang)對(dui)(dui)均(jun)勻一(yi)(yi)些，反之，受熱(re)(re)很(hen)(hen)不(bu)均(jun)勻。錯裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)時(shi)，每根(gen)制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)(pin)(pin)(pin)存在兩條高(gao)密度(du)電流(liu)加(jia)熱(re)(re)帶(dai)，制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)(pin)(pin)(pin)受熱(re)(re)相(xiang)(xiang)對(dui)(dui)正裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)要均(jun)勻一(yi)(yi)些。因此，石(shi)墨化(hua)爐(lu)(lu)制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)(pin)(pin)(pin)裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)爐(lu)(lu)方式選(xuan)擇(ze)(ze)不(bu)當(dang)，在石(shi)墨化(hua)送(song)電過程中(zhong)，制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)(pin)(pin)(pin)周(zhou)圍溫(wen)升(sheng)速度(du)相(xiang)(xiang)差較大(da)，制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)(pin)(pin)(pin)產生的熱(re)(re)應(ying)力(li)超出(chu)了本體(ti)能夠承(cheng)受的熱(re)(re)應(ying)力(li)，極容(rong)易使制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)(pin)(pin)(pin)產生裂(lie)紋(wen)(wen)。四川石(shi)墨管批發聯(lian)系成都格萊法特碳素制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)(pin)(pin)(pin)有(you)限公司(si)。

玻(bo)璃工(gong)業用(yong)炭石(shi)(shi)(shi)(shi)(shi)墨(mo)制(zhi)品(pin)介(jie)紹-石(shi)(shi)(shi)(shi)(shi)英(ying)(ying)(ying)(ying)(ying)玻(bo)璃工(gong)業用(yong)炭石(shi)(shi)(shi)(shi)(shi)墨(mo)制(zhi)品(pin)：石(shi)(shi)(shi)(shi)(shi)英(ying)(ying)(ying)(ying)(ying)玻(bo)璃生(sheng)產(chan)(chan)過程中(zhong)，特別(bie)是采(cai)用(yong)電(dian)熔(rong)法(fa)生(sheng)產(chan)(chan)透(tou)明石(shi)(shi)(shi)(shi)(shi)英(ying)(ying)(ying)(ying)(ying)玻(bo)璃時(shi)(shi)，采(cai)用(yong)石(shi)(shi)(shi)(shi)(shi)墨(mo)坩堝(guo)、石(shi)(shi)(shi)(shi)(shi)墨(mo)發熱(re)體(ti)、石(shi)(shi)(shi)(shi)(shi)墨(mo)保(bao)溫套等。玻(bo)璃及石(shi)(shi)(shi)(shi)(shi)英(ying)(ying)(ying)(ying)(ying)工(gong)業用(yong)石(shi)(shi)(shi)(shi)(shi)墨(mo)制(zhi)品(pin)如圖9-34所示。在生(sheng)產(chan)(chan)不透(tou)明石(shi)(shi)(shi)(shi)(shi)英(ying)(ying)(ying)(ying)(ying)玻(bo)璃時(shi)(shi)，常采(cai)用(yong)單棒(bang)法(fa)進行生(sheng)產(chan)(chan)，即利用(yong)一(yi)根石(shi)(shi)(shi)(shi)(shi)墨(mo)棒(bang)（包括圓形棒(bang)和(he)U形棒(bang)），通電(dian)加熱(re)，將(jiang)石(shi)(shi)(shi)(shi)(shi)英(ying)(ying)(ying)(ying)(ying)砂(sha)熔(rong)化(hua)成(cheng)(cheng)石(shi)(shi)(shi)(shi)(shi)英(ying)(ying)(ying)(ying)(ying)玻(bo)璃。而在氣(qi)煉(lian)(lian)法(fa)生(sheng)產(chan)(chan)石(shi)(shi)(shi)(shi)(shi)英(ying)(ying)(ying)(ying)(ying)玻(bo)璃中(zhong)，也采(cai)用(yong)石(shi)(shi)(shi)(shi)(shi)墨(mo)材(cai)料來制(zhi)造托板(ban)。而在“氣(qi)煉(lian)(lian)槽沉法(fa)”中(zhong)，須將(jiang)一(yi)次(ci)氣(qi)煉(lian)(lian)的(de)石(shi)(shi)(shi)(shi)(shi)英(ying)(ying)(ying)(ying)(ying)塊(kuai)，放在涂有煅燒結層的(de)石(shi)(shi)(shi)(shi)(shi)墨(mo)盒內，盒上(shang)用(yong)石(shi)(shi)(shi)(shi)(shi)墨(mo)塊(kuai)加壓，置于高(gao)頻爐(lu)或電(dian)阻(zu)爐(lu)中(zhong)加溫到料塊(kuai)熔(rong)化(hua)和(he)沉平，然后停電(dian)、冷(leng)卻和(he)退火，這樣(yang)可將(jiang)一(yi)塊(kuai)細長的(de)石(shi)(shi)(shi)(shi)(shi)英(ying)(ying)(ying)(ying)(ying)塊(kuai)壓制(zhi)成(cheng)(cheng)大(da)直徑(jing)的(de)光學(xue)石(shi)(shi)(shi)(shi)(shi)英(ying)(ying)(ying)(ying)(ying)玻(bo)璃（也可壓成(cheng)(cheng)異形的(de)），并能減(jian)輕氣(qi)煉(lian)(lian)玻(bo)璃的(de)顆粒不均勻性，可見,在石(shi)(shi)(shi)(shi)(shi)英(ying)(ying)(ying)(ying)(ying)玻(bo)璃生(sheng)產(chan)(chan)過程中(zhong)，石(shi)(shi)(shi)(shi)(shi)墨(mo)已成(cheng)(cheng)為(wei)不可缺少(shao)的(de)材(cai)料。石(shi)(shi)(shi)(shi)(shi)墨(mo)板(ban)購買(mai)聯系成(cheng)(cheng)都格萊法(fa)特碳素制(zhi)品(pin)有限公(gong)司。石(shi)(shi)(shi)(shi)(shi)墨(mo)管廠(chang)家直銷(xiao)

成都(dou)石墨滑塊(kuai)批發(fa)聯系成都(dou)格(ge)萊法(fa)特(te)碳素制(zhi)品有(you)限公司。成都(dou)石墨制(zhi)品加工服務

炭-石墨(mo)制(zhi)(zhi)品在石墨(mo)化(hua)熱處(chu)(chu)理(li)(li)過(guo)程(cheng)中產(chan)生(sheng)(sheng)裂紋(wen)廢品的(de)原因是(shi)多方面的(de)，也(ye)是(shi)比較(jiao)復雜(za)的(de)。要預防炭-石墨(mo)制(zhi)(zhi)品石墨(mo)化(hua)熱處(chu)(chu)理(li)(li)過(guo)程(cheng)中產(chan)生(sheng)(sheng)裂紋(wen)廢品，就要采取各(ge)種工(gong)藝技(ji)術改進措施，標本并重。關鍵的(de)是(shi)制(zhi)(zhi)品的(de)本體質量要高，抗熱性能要好，達(da)到(dao)均(jun)質化(hua)生(sheng)(sheng)產(chan)，前(qian)工(gong)序的(de)質量技(ji)術指標要符合生(sheng)(sheng)產(chan)工(gong)藝技(ji)術標準要求，質量波(bo)動要控制(zhi)(zhi)在正常范圍內(nei)。還有在石墨(mo)化(hua)熱處(chu)(chu)理(li)(li)過(guo)程(cheng)中，制(zhi)(zhi)品在艾奇遜石墨(mo)化(hua)爐(lu)爐(lu)芯(xin)中溫度(du)(du)上升的(de)速度(du)(du)應嚴(yan)格(ge)控制(zhi)(zhi)，避免爐(lu)芯(xin)溫度(du)(du)上升速度(du)(du)過(guo)快，制(zhi)(zhi)品內(nei)部溫度(du)(du)差加(jia)(jia)大，引(yin)起熱應力(li)也(ye)相(xiang)應增大，而產(chan)生(sheng)(sheng)裂紋(wen)廢品。成都石墨(mo)制(zhi)(zhi)品加(jia)(jia)工(gong)服務(wu)