貴州推盤爐價格有高有低,接下來我們來看一下,氮化爐的安全操作步驟:1.滲氮前的氣體氮化爐必須是先經過正火或調質處理過的工件。先用汽油和酒精擦洗氣體氮化爐工件表面,不得有銹斑、油污、臟物存在。裝入爐內后,對稱擰緊爐蓋壓緊螺栓。2.將爐罐和爐蓋進水口通入冷卻水進行循環水冷。爐蓋上管道冷卻水下端為進水,上端為出水,爐罐單獨進水,單獨排水,氣體氮化爐爐蓋所有水管可按低進高出原則串聯,由一個口進水,一個口排水。3.供應推盤爐升溫(wen)(wen)前應先送氮(dan)(dan)氣(qi)(qi)排(pai)(pai)(pai)氣(qi)(qi),排(pai)(pai)(pai)氣(qi)(qi)時(shi)流(liu)(liu)量應比使用(yong)時(shi)大一倍以上。排(pai)(pai)(pai)氣(qi)(qi)10分鐘后,將控(kong)溫(wen)(wen)儀表(biao)設定(ding)到150℃,自動加熱(re)開關撥向(xiang)開,氣(qi)(qi)體氮(dan)(dan)化爐(lu)(lu)邊(bian)排(pai)(pai)(pai)氣(qi)(qi)邊(bian)加熱(re)150℃保持(chi)2h排(pai)(pai)(pai)氣(qi)(qi),再(zai)將控(kong)溫(wen)(wen)儀表(biao)設定(ding)到530℃,把氨(an)(an)氣(qi)(qi)流(liu)(liu)量調(diao)(diao)小(xiao),保持(chi)爐(lu)(lu)內(nei)正壓(ya)。4.排(pai)(pai)(pai)氣(qi)(qi)口有較小(xiao)氣(qi)(qi)流(liu)(liu)向(xiang)上的壓(ya)力(li)(li)(li),當爐(lu)(lu)溫(wen)(wen)升到530℃時(shi),恒(heng)溫(wen)(wen)恒(heng)流(liu)(liu)滲氮(dan)(dan)3-20h,再(zai)將氨(an)(an)氣(qi)(qi)壓(ya)力(li)(li)(li)調(diao)(diao)大一點,讓(rang)排(pai)(pai)(pai)氣(qi)(qi)維(wei)持(chi)適中壓(ya)力(li)(li)(li),滲氮(dan)(dan)4-70h, 再(zai)將氨(an)(an)氣(qi)(qi)壓(ya)力(li)(li)(li)調(diao)(diao)小(xiao),退氮(dan)(dan)1-2h,切(qie)斷電源,給少量氨(an)(an)氣(qi)(qi),使爐(lu)(lu)內(nei)維(wei)持(chi)正壓(ya)。5.排(pai)(pai)(pai)氣(qi)(qi)口有較小(xiao)氣(qi)(qi)流(liu)(liu)向(xiang)上的壓(ya)力(li)(li)(li),當爐(lu)(lu)溫(wen)(wen)升到530℃時(shi),恒(heng)溫(wen)(wen)恒(heng)流(liu)(liu)滲氮(dan)(dan)3-20h,再(zai)將氨(an)(an)氣(qi)(qi)壓(ya)力(li)(li)(li)調(diao)(diao)大一點,讓(rang)排(pai)(pai)(pai)氣(qi)(qi)維(wei)持(chi)適中壓(ya)力(li)(li)(li),滲氮(dan)(dan)4-70h, 再(zai)將氨(an)(an)氣(qi)(qi)壓(ya)力(li)(li)(li)調(diao)(diao)小(xiao),退氮(dan)(dan)1-2h,切(qie)斷電源。
給大家(jia)介紹(shao)下(xia)多(duo)用(yong)(yong)(yong)(yong)(yong)(yong)爐氮氣(qi)(qi)純度(du)要(yao)求:1.本(ben)箱式可控(kong)氣(qi)(qi)氛(fen)(fen)(fen)多(duo)用(yong)(yong)(yong)(yong)(yong)(yong)爐生產(chan)線(xian)(xian)主要(yao)用(yong)(yong)(yong)(yong)(yong)(yong)于(yu)(yu)(yu)工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)在(zai)可控(kong)氣(qi)(qi)氛(fen)(fen)(fen)下(xia)的(de)氣(qi)(qi)體(ti)滲(shen)碳(tan)(tan)、碳(tan)(tan)氮共(gong)滲(shen)、滲(shen)碳(tan)(tan)后(hou)(hou)再次加(jia)熱(re)淬火(huo)以(yi)及(ji)(ji)在(zai)保護(hu)氣(qi)(qi)氛(fen)(fen)(fen)下(xia)的(de)淬火(huo)、回火(huo)。該(gai)設(she)(she)(she)(she)備(bei)的(de)操(cao)作必(bi)須安(an)全(quan)可靠,直接簡捷,采用(yong)(yong)(yong)(yong)(yong)(yong)計算機(ji)全(quan)過程自動控(kong)制,工(gong)(gong)(gong)(gong)(gong)藝穩定(ding)性好,在(zai)停電或(huo)其它意外情況(kuang)下(xia),能(neng)夠實現自動充氮,并可通過手動操(cao)作完成后(hou)(hou)續工(gong)(gong)(gong)(gong)(gong)序,以(yi)確(que)保安(an)全(quan)操(cao)作和(he)產(chan)品質(zhi)量。2.帶(dai)保護(hu)氣(qi)(qi)氛(fen)(fen)(fen)的(de)回火(huo)爐用(yong)(yong)(yong)(yong)(yong)(yong)于(yu)(yu)(yu)工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)的(de)回火(huo)及(ji)(ji)時效退火(huo)(用(yong)(yong)(yong)(yong)(yong)(yong)于(yu)(yu)(yu)高低溫(wen)不同溫(wen)度(du)段時加(jia)熱(re)功率(lv)應可調,帶(dai)有保護(hu)氣(qi)(qi)氛(fen)(fen)(fen)功能(neng))。3.用(yong)(yong)(yong)(yong)(yong)(yong)于(yu)(yu)(yu)滲(shen)碳(tan)(tan)、碳(tan)(tan)氮共(gong)滲(shen)前及(ji)(ji)滲(shen)碳(tan)(tan)、碳(tan)(tan)氮共(gong)滲(shen)淬火(huo)后(hou)(hou)工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)的(de)清(qing)洗(xi)、烘干(gan)。工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)清(qing)洗(xi)、烘干(gan)后(hou)(hou)的(de)清(qing)潔度(du)達到滲(shen)碳(tan)(tan)、碳(tan)(tan)氮共(gong)滲(shen)要(yao)求的(de)標(biao)準,且工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)無腐蝕、對下(xia)道工(gong)(gong)(gong)(gong)(gong)序熱(re)處(chu)理質(zhi)量無影響。4.裝卸料車用(yong)(yong)(yong)(yong)(yong)(yong)于(yu)(yu)(yu)箱式可控(kong)氣(qi)(qi)氛(fen)(fen)(fen)多(duo)用(yong)(yong)(yong)(yong)(yong)(yong)爐、回火(huo)爐、清(qing)洗(xi)機(ji)的(de)裝卸料及(ji)(ji)生產(chan)線(xian)(xian)各工(gong)(gong)(gong)(gong)(gong)序之間工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)的(de)傳送。能(neng)夠準確(que)按(an)規定(ding)位(wei)置完成上述設(she)(she)(she)(she)備(bei)工(gong)(gong)(gong)(gong)(gong)作室(shi)的(de)裝卸料。該(gai)生產(chan)線(xian)(xian)的(de)所有設(she)(she)(she)(she)備(bei)必(bi)須是全(quan)新設(she)(she)(she)(she)備(bei)(包括所有零部件(jian)(jian)、元器件(jian)(jian)和(he)附件(jian)(jian))。由不低于(yu)(yu)(yu)國家(jia)標(biao)準的(de)先(xian)進可靠的(de)材料、生產(chan)工(gong)(gong)(gong)(gong)(gong)藝及(ji)(ji)規范(fan)制造而(er)成;投標(biao)方投標(biao)的(de)同類(lei)設(she)(she)(she)(she)備(bei)應具有在(zai)國內(nei)煤礦機(ji)械行業或(huo)同類(lei)行業二(er)年以(yi)上的(de)使用(yong)(yong)(yong)(yong)(yong)(yong)經驗。
給大家介紹下滲(shen)碳(tan)(tan)爐(lu)(lu)(lu)(lu)(lu)廠(chang)家有(you)哪些分(fen)類?間斷(duan)式(shi)(shi)滲(shen)碳(tan)(tan)爐(lu)(lu)(lu)(lu)(lu):(1) 井式(shi)(shi)爐(lu)(lu)(lu)(lu)(lu),是(shi)一(yi)種(zhong)(zhong)最(zui)為簡單(dan)的(de)(de)一(yi)種(zhong)(zhong)滲(shen)碳(tan)(tan)爐(lu)(lu)(lu)(lu)(lu),形(xing)狀為圓筒形(xing),在爐(lu)(lu)(lu)(lu)(lu)底或(huo)爐(lu)(lu)(lu)(lu)(lu)頂(ding)裝有(you)攪動(dong)風(feng)扇(shan)。工件和(he)(he)耐熱(re)(re)鋼制的(de)(de)夾具(ju)或(huo)料(liao)(liao)筐一(yi)起從爐(lu)(lu)(lu)(lu)(lu)頂(ding)用吊車(che)或(huo)提升機手動(dong)操(cao)作(zuo)裝出(chu)(chu)爐(lu)(lu)(lu)(lu)(lu)。 (2)臥式(shi)(shi)爐(lu)(lu)(lu)(lu)(lu),是(shi)目(mu)前(qian)應用使用較廣的(de)(de)一(yi)種(zhong)(zhong)爐(lu)(lu)(lu)(lu)(lu)型。就箱(xiang)式(shi)(shi)臥式(shi)(shi)爐(lu)(lu)(lu)(lu)(lu)而(er)言,淬火(huo)油(you)(you)嘴(zui)是(shi)處(chu)在裝出(chu)(chu) 料(liao)(liao)裝置和(he)(he)滲(shen)碳(tan)(tan)爐(lu)(lu)(lu)(lu)(lu)之間。在淬火(huo)油(you)(you)槽上部是(shi)冷卻(que)間。淬火(huo)油(you)(you)槽、冷卻(que)間與滲(shen)碳(tan)(tan)爐(lu)(lu)(lu)(lu)(lu)構成(cheng)一(yi)個(ge)整體。連續式(shi)(shi)滲(shen)碳(tan)(tan)爐(lu)(lu)(lu)(lu)(lu):(1)推(tui)桿(gan)(gan)式(shi)(shi)爐(lu)(lu)(lu)(lu)(lu),推(tui)桿(gan)(gan)式(shi)(shi)爐(lu)(lu)(lu)(lu)(lu)。這(zhe)種(zhong)(zhong)爐(lu)(lu)(lu)(lu)(lu)子使用較多(duo)。爐(lu)(lu)(lu)(lu)(lu)子設有(you)加熱(re)(re)、滲(shen)碳(tan)(tan)、 擴散和(he)(he)冷卻(que)并均勻4個(ge)爐(lu)(lu)(lu)(lu)(lu)段。為了(le)控制各(ge)段的(de)(de)溫度,采用燃煤氣(qi)或(huo)油(you)(you)的(de)(de)輻射管供熱(re)(re),在滲(shen)碳(tan)(tan)段和(he)(he)擴散段裝有(you)爐(lu)(lu)(lu)(lu)(lu)氣(qi)攪動(dong)風(feng)扇(shan)以保證(zheng)產品(pin)質量。裝料(liao)(liao)小(xiao)車(che)、裝料(liao)(liao)門、鏈式(shi)(shi)門和(he)(he)推(tui)料(liao)(liao)機用 電(dian)器(qi)連鎖操(cao)作(zuo)。 (2)旋轉(zhuan)(zhuan)鼓形(xing)爐(lu)(lu)(lu)(lu)(lu)。爐(lu)(lu)(lu)(lu)(lu)膛內沿爐(lu)(lu)(lu)(lu)(lu)長(chang)方向安裝用耐熱(re)(re) 鋼制造的(de)(de)并帶(dai)有(you)螺旋片的(de)(de)爐(lu)(lu)(lu)(lu)(lu)罐,在爐(lu)(lu)(lu)(lu)(lu)子出(chu)(chu)料(liao)(liao)端由旋轉(zhuan)(zhuan)機構驅使其轉(zhuan)(zhuan)動(dong)。滲(shen)碳(tan)(tan)是(shi)采用氣(qi)體滲(shen) 碳(tan)(tan)。
試著解釋如下(xia):1、滲氮(dan)爐(lu)的基本爐(lu)氣(qi)(qi)(qi)(qi)為(wei)(wei)(wei)氨(an)氣(qi)(qi)(qi)(qi)+氮(dan)氣(qi)(qi)(qi)(qi)+氫氣(qi)(qi)(qi)(qi),其中(zhong)(zhong)氫氣(qi)(qi)(qi)(qi)和氨(an)氣(qi)(qi)(qi)(qi)都是可燃(ran)(ran)氣(qi)(qi)(qi)(qi)體(ti),與空(kong)氣(qi)(qi)(qi)(qi)混合至一定比例范圍時(shi),遇明火(huo)(huo)(含火(huo)(huo)星)或者達到著火(huo)(huo)溫度(510℃以上)即可燃(ran)(ran)燒,在(zai)密封容(rong)器(qi)中(zhong)(zhong)表現(xian)為(wei)(wei)(wei)爆炸,敞(chang)口(kou)容(rong)器(qi)中(zhong)(zhong)表現(xian)為(wei)(wei)(wei)爆燃(ran)(ran)。2、此時(shi)爐(lu)溫已在(zai)200℃以下(xia),打開(kai)爐(lu)蓋,盡(jin)管有(you)(you)空(kong)氣(qi)(qi)(qi)(qi)進入,在(zai)沒有(you)(you)明火(huo)(huo)點(dian)燃(ran)(ran)的情況下(xia),本應該不會發生氣(qi)(qi)(qi)(qi)體(ti)燃(ran)(ran)燒(爆燃(ran)(ran))現(xian)象。3、當(dang)然,這其中(zhong)(zhong)有(you)(you)一個問題(ti),即氫氣(qi)(qi)(qi)(qi)是強(qiang)還原性(xing)氣(qi)(qi)(qi)(qi)體(ti),隨爐(lu)冷卻過程(cheng)中(zhong)(zhong)它會將散落(luo)在(zai)爐(lu)罐內的呈微粒(灰(hui)塵)狀(zhuang)態的鐵(tie)氮(dan)化(hua)物(wu)還原成鐵(tie)粉(fen).我(wo)們知道微小的還原鐵(tie)粉(fen)遇空(kong)氣(qi)(qi)(qi)(qi)會強(qiang)烈氧化(hua)而(er)(er)發熱,溫度急劇(ju)升(sheng)高而(er)(er)成為(wei)(wei)(wei)火(huo)(huo)星,另外氮(dan)碳共(gong)滲過程(cheng)中(zhong)(zhong)可能沉積的活性(xing)炭(tan)粉(fen)遇空(kong)氣(qi)(qi)(qi)(qi)也(ye)會氧化(hua)成為(wei)(wei)(wei)火(huo)(huo)星.火(huo)(huo)星點(dian)燃(ran)(ran)“氫氣(qi)(qi)(qi)(qi)(氨(an)氣(qi)(qi)(qi)(qi))-空(kong)氣(qi)(qi)(qi)(qi)”混合氣(qi)(qi)(qi)(qi),于是出現(xian)爆燃(ran)(ran)現(xian)。
為(wei)大家(jia)介紹(shao)一下(xia)井式滲(shen)碳爐具(ju)有哪些優勢?產品(pin)無(wu)(wu)(wu)內氧化,變形小(xiao)。滲(shen)層控制精度(du)高(gao),計算機模擬控制精度(du)可達±0.05mm;處(chu)理后(hou)產品(pin)表(biao)面呈銀灰色光亮(liang)狀,可不經清洗、清理拋丸工序;在(zai)低壓和(he)高(gao)溫狀態下(xia),滲(shen)碳過程(cheng)可以大大縮短,輔(fu)助(zhu)消(xiao)耗大為(wei)減少;無(wu)(wu)(wu)火(huo)簾,無(wu)(wu)(wu)排氣口(kou),無(wu)(wu)(wu)油煙(yan),無(wu)(wu)(wu)油槽,加熱室采用(yong)冷壁型(xing)爐體設(she)計,對環境影(ying)響小(xiao);可用(yong)于(yu)(yu)不同產量及不同熱處(chu)理方式,每個滲(shen)碳室相當于(yu)(yu)一臺多用(yong)爐。這是(shi)由于(yu)(yu)具(ju)有這樣的(de)(de)(de)優勢才會取代(dai)傳統的(de)(de)(de)設(she)備(bei)得到使用(yong)的(de)(de)(de)廣泛性,而(er)且低壓真空滲(shen)碳爐廠(chang)家(jia)的(de)(de)(de)人可以告訴(su)我們,現在(zai)這種類型(xing)的(de)(de)(de)設(she)備(bei)已經是(shi)成(cheng)為(wei)了(le)主流(liu)的(de)(de)(de)產品(pin),而(er)且隨著低壓真空滲(shen)碳爐的(de)(de)(de)性能不斷被挖掘,相信以后(hou)使用(yong)的(de)(de)(de)領域(yu)也是(shi)會不斷的(de)(de)(de)擴(kuo)大。