井式淬火槽廠家給大家介紹下常用熱處理多用爐爐型的選擇：1．井式淬火槽廠家對(dui)于不(bu)能成批定(ding)(ding)型生(sheng)產(chan)(chan)的(de)，工(gong)件(jian)(jian)大小(xiao)不(bu)相(xiang)等的(de)，種(zhong)類較(jiao)多的(de)，要求工(gong)藝上(shang)具(ju)有(you)通用(yong)(yong)(yong)性、多用(yong)(yong)(yong)性的(de)，可(ke)(ke)選(xuan)(xuan)(xuan)用(yong)(yong)(yong)箱式(shi)(shi)多用(yong)(yong)(yong)爐(lu)。2．加熱長軸類及長的(de)絲桿，管(guan)子等工(gong)件(jian)(jian)時(shi)，可(ke)(ke)選(xuan)(xuan)(xuan)用(yong)(yong)(yong)深井(jing)(jing)式(shi)(shi)電(dian)爐(lu)。3．小(xiao)批量的(de)滲(shen)碳零(ling)件(jian)(jian)，可(ke)(ke)選(xuan)(xuan)(xuan)用(yong)(yong)(yong)井(jing)(jing)式(shi)(shi)氣體(ti)滲(shen)碳爐(lu)。4．對(dui)于大批量的(de)汽車、拖拉(la)機(ji)齒輪(lun)等零(ling)件(jian)(jian)的(de)生(sheng)產(chan)(chan)可(ke)(ke)選(xuan)(xuan)(xuan)連續式(shi)(shi)滲(shen)碳生(sheng)產(chan)(chan)線或(huo)(huo)箱式(shi)(shi)多用(yong)(yong)(yong)爐(lu)。5．對(dui)沖壓(ya)件(jian)(jian)板(ban)材坯料(liao)的(de)加熱大批量生(sheng)產(chan)(chan)時(shi)，最(zui)好(hao)選(xuan)(xuan)(xuan)用(yong)(yong)(yong)滾(gun)動爐(lu)，輥底爐(lu)。6．對(dui)成批的(de)定(ding)(ding)型零(ling)件(jian)(jian)，生(sheng)產(chan)(chan)上(shang)可(ke)(ke)選(xuan)(xuan)(xuan)用(yong)(yong)(yong)推(tui)桿式(shi)(shi)或(huo)(huo)傳(chuan)送帶式(shi)(shi)電(dian)阻爐(lu)（推(tui)桿爐(lu)或(huo)(huo)鑄帶爐(lu)）7．小(xiao)型機(ji)械零(ling)件(jian)(jian)如：螺(luo)釘，螺(luo)母等可(ke)(ke)選(xuan)(xuan)(xuan)用(yong)(yong)(yong)振底式(shi)(shi)爐(lu)或(huo)(huo)網帶式(shi)(shi)爐(lu)。8．鋼球及滾(gun)柱(zhu)熱處(chu)理可(ke)(ke)選(xuan)(xuan)(xuan)用(yong)(yong)(yong)內螺(luo)旋的(de)回轉(zhuan)管(guan)爐(lu)。9．有(you)色金屬錠坯在大批量生(sheng)產(chan)(chan)時(shi)可(ke)(ke)用(yong)(yong)(yong)推(tui)桿式(shi)(shi)爐(lu)，而對(dui)有(you)色金屬小(xiao)零(ling)件(jian)(jian)及材料(liao)可(ke)(ke)用(yong)(yong)(yong)空(kong)氣循環加熱爐(lu)。

吹主回保險(xian)怎么解決：1.滲氮(dan)前的模(mo)具必須是(shi)先經過正火或調(diao)質處理過的工件。2.先用汽油和酒精擦洗工件表面，不得有(you)銹斑、油污(wu)、臟物存在。3.裝入爐(lu)內(nei)后，對稱(cheng)擰緊爐(lu)蓋(gai)壓(ya)(ya)緊螺栓。4.將爐(lu)罐(guan)和爐(lu)蓋(gai)進水(shui)(shui)(shui)(shui)口通入冷(leng)卻水(shui)(shui)(shui)(shui)進行循環水(shui)(shui)(shui)(shui)冷(leng)。爐(lu)蓋(gai)上(shang)管道冷(leng)卻水(shui)(shui)(shui)(shui)下(xia)端為(wei)進水(shui)(shui)(shui)(shui)，上(shang)端為(wei)出水(shui)(shui)(shui)(shui)，爐(lu)罐(guan)單(dan)(dan)獨進水(shui)(shui)(shui)(shui)，單(dan)(dan)獨排(pai)(pai)水(shui)(shui)(shui)(shui)，爐(lu)蓋(gai)所有(you)水(shui)(shui)(shui)(shui)管可按低進高出原則串聯，由(you)一個(ge)口進水(shui)(shui)(shui)(shui)，一個(ge)口排(pai)(pai)水(shui)(shui)(shui)(shui)。5.升(sheng)溫前應(ying)先送氮(dan)氣(qi)(qi)排(pai)(pai)氣(qi)(qi)，排(pai)(pai)氣(qi)(qi)時流量應(ying)比使(shi)用時大一倍(bei)以(yi)(yi)上(shang)。排(pai)(pai)氣(qi)(qi)10分鐘后，將控溫儀(yi)表設定到(dao)150℃，自(zi)動(dong)加熱(re)開(kai)關撥向開(kai)，邊(bian)排(pai)(pai)氣(qi)(qi)邊(bian)加熱(re)150℃保持2h排(pai)(pai)氣(qi)(qi)，再將控溫儀(yi)表設定到(dao)530℃，把氨(an)(an)(an)(an)氣(qi)(qi)流量調(diao)小，保 持爐(lu)內(nei)正壓(ya)(ya)，排(pai)(pai)氣(qi)(qi)口有(you)較小氣(qi)(qi)流向上(shang)的壓(ya)(ya)力(li)，當爐(lu)溫升(sheng)到(dao)530℃時，恒溫恒流滲氮(dan)3-20h，再將氨(an)(an)(an)(an)氣(qi)(qi)壓(ya)(ya)力(li)調(diao)大一點，讓排(pai)(pai)氣(qi)(qi)維持適(shi)中壓(ya)(ya)力(li)，滲氮(dan)4-70h， 再將氨(an)(an)(an)(an)氣(qi)(qi)壓(ya)(ya)力(li)調(diao)小，退氮(dan)1-2h，切斷電源，停(ting)止加熱(re)，給(gei)少(shao)量氨(an)(an)(an)(an)氣(qi)(qi)，使(shi)爐(lu)內(nei)維持正壓(ya)(ya)，待爐(lu)溫降到(dao)150℃以(yi)(yi)下(xia)方可停(ting)止供氨(an)(an)(an)(an)出爐(lu)。

試著解釋如下：1、滲(shen)氮(dan)(dan)爐(lu)的基(ji)本爐(lu)氣為(wei)氨(an)氣＋氮(dan)(dan)氣＋氫(qing)氣,其(qi)中氫(qing)氣和氨(an)氣都是(shi)可(ke)燃(ran)氣體,與空(kong)(kong)氣混合(he)至一(yi)定比例范圍時,遇明火(huo)(huo)(huo)（含(han)火(huo)(huo)(huo)星）或者達到著火(huo)(huo)(huo)溫(wen)度(du)（510℃以(yi)上(shang)）即(ji)可(ke)燃(ran)燒(shao),在(zai)(zai)密封容器(qi)中表現(xian)(xian)為(wei)爆(bao)炸,敞口(kou)容器(qi)中表現(xian)(xian)為(wei)爆(bao)燃(ran)。2、此時爐(lu)溫(wen)已(yi)在(zai)(zai)200℃以(yi)下,打開爐(lu)蓋,盡管(guan)有空(kong)(kong)氣進入,在(zai)(zai)沒(mei)有明火(huo)(huo)(huo)點(dian)燃(ran)的情況下,本應該不會發生(sheng)氣體燃(ran)燒(shao)（爆(bao)燃(ran)）現(xian)(xian)象。3、當然(ran),這其(qi)中有一(yi)個問題(ti),即(ji)氫(qing)氣是(shi)強還原(yuan)性(xing)氣體,隨爐(lu)冷卻(que)過(guo)程中它(ta)會將散落在(zai)(zai)爐(lu)罐內的呈微(wei)粒（灰(hui)塵）狀態的鐵氮(dan)(dan)化(hua)物還原(yuan)成鐵粉.我們知道微(wei)小的還原(yuan)鐵粉遇空(kong)(kong)氣會強烈氧化(hua)而發熱,溫(wen)度(du)急劇(ju)升高而成為(wei)火(huo)(huo)(huo)星,另外氮(dan)(dan)碳(tan)共滲(shen)過(guo)程中可(ke)能沉積(ji)的活性(xing)炭(tan)粉遇空(kong)(kong)氣也會氧化(hua)成為(wei)火(huo)(huo)(huo)星.火(huo)(huo)(huo)星點(dian)燃(ran)“氫(qing)氣（氨(an)氣）－空(kong)(kong)氣”混合(he)氣,于是(shi)出現(xian)(xian)爆(bao)燃(ran)現(xian)(xian)。

的結(jie)構組(zu)成特點：井式(shi)加(jia)熱(re)(re)(re)爐(lu)(lu)(lu)(lu)(lu)爐(lu)(lu)(lu)(lu)(lu)殼由型鋼及優質(zhi)鋼板組(zu)焊(han)而成，井式(shi)加(jia)熱(re)(re)(re)爐(lu)(lu)(lu)(lu)(lu)可實現爐(lu)(lu)(lu)(lu)(lu)蓋和(he)爐(lu)(lu)(lu)(lu)(lu)體之間的密封(feng)，并(bing)在(zai)爐(lu)(lu)(lu)(lu)(lu)殼上部設(she)(she)置(zhi)排(pai)煙裝(zhuang)置(zhi)。井式(shi)加(jia)熱(re)(re)(re)爐(lu)(lu)(lu)(lu)(lu)爐(lu)(lu)(lu)(lu)(lu)底(di)襯由輕質(zhi)粘土磚和(he)重(zhong)質(zhi)抗滲碳砌筑而成，爐(lu)(lu)(lu)(lu)(lu)墻襯為復合爐(lu)(lu)(lu)(lu)(lu)襯結(jie)構，耐火(huo)層采用輕質(zhi)粘土磚，保溫(wen)(wen)(wen)層用陶瓷纖維棉或粘土磚，各層經過優化設(she)(she)計。在(zai)耐火(huo)層內預制(zhi)了不銹(xiu)鋼掛鉤，用于電(dian)阻絲(si)帶的安(an)裝(zhuang)。井式(shi)加(jia)熱(re)(re)(re)爐(lu)(lu)(lu)(lu)(lu)加(jia)熱(re)(re)(re)裝(zhuang)置(zhi)均(jun)勻布(bu)置(zhi)在(zai)爐(lu)(lu)(lu)(lu)(lu)襯墻體的周圍，該井式(shi)加(jia)熱(re)(re)(re)爐(lu)(lu)(lu)(lu)(lu)由高(gao)溫(wen)(wen)(wen)電(dian)熱(re)(re)(re)合金帶繞制(zhi)成波紋狀，分布(bu)在(zai)各個加(jia)熱(re)(re)(re)區內，安(an)裝(zhuang)方式(shi)確保加(jia)熱(re)(re)(re)均(jun)勻性和(he)使(shi)用壽(shou)命(ming)以及高(gao)的可靠性，安(an)裝(zhuang)、維修方便。井式(shi)加(jia)熱(re)(re)(re)爐(lu)(lu)(lu)(lu)(lu)每一(yi)個加(jia)熱(re)(re)(re)區都設(she)(she)有測(ce)溫(wen)(wen)(wen)和(he)超溫(wen)(wen)(wen)報(bao)警(jing)熱(re)(re)(re)偶。每一(yi)區的每一(yi)組(zu)加(jia)熱(re)(re)(re)元(yuan)件為同參數同結(jie)構。

主要(yao)(yao)用(yong)(yong)(yong)于碳鋼、鑄鐵、粉(fen)未冶金等材(cai)料(liao)的軟氮(dan)化處理。的結構簡介： 氮(dan)化爐由(you)爐體、氣(qi)(qi)(qi)控(kong)(kong)柜和電(dian)控(kong)(kong)三部(bu)門(men)組成(cheng)。爐體部(bu)門(men)主要(yao)(yao)由(you)包括爐殼、爐襯采用(yong)(yong)(yong)節能(neng)型超輕質耐(nai)火磚、硅鋼鋁纖維與優質保溫材(cai)料(liao)組成(cheng)復合爐襯，爐罐用(yong)(yong)(yong)高強度耐(nai)熱(re)(re)板焊接(jie)而(er)成(cheng)；爐蓋(gai)上設(she)(she)有(you)(you)強力攪拌風機，各氣(qi)(qi)(qi)管道接(jie)口均采用(yong)(yong)(yong)快速轉換(huan)接(jie)頭(tou)連(lian)接(jie)使用(yong)(yong)(yong)利便快捷。排氣(qi)(qi)(qi)管上設(she)(she)有(you)(you)一燃燒(shao)廢氣(qi)(qi)(qi)裝(zhuang)置和旁接(jie)u形壓力計接(jie)口；爐蓋(gai)上還設(she)(she)有(you)(you)一熱(re)(re)電(dian)偶，用(yong)(yong)(yong)以檢測罐內的溫度。爐蓋(gai)的超吊靠(kao)車間行車進行氣(qi)(qi)(qi)控(kong)(kong)柜內設(she)(she)置有(you)(you)各種(zhong)流(liu)量計、氣(qi)(qi)(qi)控(kong)(kong)閥、干燥罐等元件(jian)。電(dian)控(kong)(kong)部(bu)門(men)主要(yao)(yao)包括溫控(kong)(kong)、操(cao)縱及氣(qi)(qi)(qi)控(kong)(kong)三部(bu)門(men)。