多用爐生產給大家介紹下常用熱處理多用爐爐型的選擇：1．多用爐生產對(dui)(dui)于不能(neng)成批(pi)(pi)定(ding)型生(sheng)(sheng)(sheng)產(chan)(chan)(chan)的(de)，工件(jian)大小(xiao)不相等(deng)的(de)，種類較多的(de)，要求工藝上具有通用(yong)性、多用(yong)性的(de)，可(ke)(ke)選(xuan)(xuan)(xuan)(xuan)用(yong)箱式(shi)(shi)(shi)(shi)多用(yong)爐(lu)(lu)(lu)(lu)(lu)。2．加(jia)熱(re)長軸類及(ji)長的(de)絲(si)桿(gan)，管(guan)子等(deng)工件(jian)時(shi)，可(ke)(ke)選(xuan)(xuan)(xuan)(xuan)用(yong)深井式(shi)(shi)(shi)(shi)電爐(lu)(lu)(lu)(lu)(lu)。3．小(xiao)批(pi)(pi)量的(de)滲(shen)碳零(ling)件(jian)，可(ke)(ke)選(xuan)(xuan)(xuan)(xuan)用(yong)井式(shi)(shi)(shi)(shi)氣(qi)體滲(shen)碳爐(lu)(lu)(lu)(lu)(lu)。4．對(dui)(dui)于大批(pi)(pi)量的(de)汽車、拖拉機齒輪等(deng)零(ling)件(jian)的(de)生(sheng)(sheng)(sheng)產(chan)(chan)(chan)可(ke)(ke)選(xuan)(xuan)(xuan)(xuan)連續式(shi)(shi)(shi)(shi)滲(shen)碳生(sheng)(sheng)(sheng)產(chan)(chan)(chan)線(xian)或箱式(shi)(shi)(shi)(shi)多用(yong)爐(lu)(lu)(lu)(lu)(lu)。5．對(dui)(dui)沖壓件(jian)板材坯料(liao)的(de)加(jia)熱(re)大批(pi)(pi)量生(sheng)(sheng)(sheng)產(chan)(chan)(chan)時(shi)，最好選(xuan)(xuan)(xuan)(xuan)用(yong)滾動爐(lu)(lu)(lu)(lu)(lu)，輥底爐(lu)(lu)(lu)(lu)(lu)。6．對(dui)(dui)成批(pi)(pi)的(de)定(ding)型零(ling)件(jian)，生(sheng)(sheng)(sheng)產(chan)(chan)(chan)上可(ke)(ke)選(xuan)(xuan)(xuan)(xuan)用(yong)推(tui)桿(gan)式(shi)(shi)(shi)(shi)或傳送(song)帶式(shi)(shi)(shi)(shi)電阻(zu)爐(lu)(lu)(lu)(lu)(lu)（推(tui)桿(gan)爐(lu)(lu)(lu)(lu)(lu)或鑄帶爐(lu)(lu)(lu)(lu)(lu)）7．小(xiao)型機械(xie)零(ling)件(jian)如(ru)：螺(luo)釘，螺(luo)母等(deng)可(ke)(ke)選(xuan)(xuan)(xuan)(xuan)用(yong)振底式(shi)(shi)(shi)(shi)爐(lu)(lu)(lu)(lu)(lu)或網帶式(shi)(shi)(shi)(shi)爐(lu)(lu)(lu)(lu)(lu)。8．鋼球及(ji)滾柱(zhu)熱(re)處理可(ke)(ke)選(xuan)(xuan)(xuan)(xuan)用(yong)內(nei)螺(luo)旋的(de)回轉管(guan)爐(lu)(lu)(lu)(lu)(lu)。9．有色金(jin)屬錠坯在大批(pi)(pi)量生(sheng)(sheng)(sheng)產(chan)(chan)(chan)時(shi)可(ke)(ke)用(yong)推(tui)桿(gan)式(shi)(shi)(shi)(shi)爐(lu)(lu)(lu)(lu)(lu)，而對(dui)(dui)有色金(jin)屬小(xiao)零(ling)件(jian)及(ji)材料(liao)可(ke)(ke)用(yong)空(kong)氣(qi)循環加(jia)熱(re)爐(lu)(lu)(lu)(lu)(lu)。

給大(da)家(jia)介(jie)紹下(xia)多(duo)(duo)(duo)用(yong)(yong)(yong)(yong)(yong)爐(lu)(lu)熱(re)處(chu)理的爐(lu)(lu)型(xing)選(xuan)(xuan)擇： 1．對(dui)(dui)于不(bu)能(neng)成(cheng)批(pi)(pi)(pi)定(ding)(ding)型(xing)生(sheng)產(chan)的，工件(jian)(jian)大(da)小不(bu)相等(deng)的，種類(lei)較多(duo)(duo)(duo)的，要(yao)求工藝(yi)上具有(you)通用(yong)(yong)(yong)(yong)(yong)性(xing)、多(duo)(duo)(duo)用(yong)(yong)(yong)(yong)(yong)性(xing)的，可(ke)選(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)箱式(shi)(shi)(shi)(shi)多(duo)(duo)(duo)用(yong)(yong)(yong)(yong)(yong)爐(lu)(lu)。2．加熱(re)長軸類(lei)及長的絲桿，管(guan)子等(deng)工件(jian)(jian)時，可(ke)選(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)深井式(shi)(shi)(shi)(shi)電(dian)爐(lu)(lu)。3．小批(pi)(pi)(pi)量(liang)(liang)的滲碳(tan)零(ling)(ling)件(jian)(jian)，可(ke)選(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)井式(shi)(shi)(shi)(shi)氣(qi)體滲碳(tan)爐(lu)(lu)。4．對(dui)(dui)于大(da)批(pi)(pi)(pi)量(liang)(liang)的汽(qi)車、拖(tuo)拉機齒(chi)輪等(deng)零(ling)(ling)件(jian)(jian)的生(sheng)產(chan)可(ke)選(xuan)(xuan)連續式(shi)(shi)(shi)(shi)滲碳(tan)生(sheng)產(chan)線或(huo)箱式(shi)(shi)(shi)(shi)多(duo)(duo)(duo)用(yong)(yong)(yong)(yong)(yong)爐(lu)(lu)。5．對(dui)(dui)沖壓件(jian)(jian)板材(cai)坯(pi)料(liao)的加熱(re)大(da)批(pi)(pi)(pi)量(liang)(liang)生(sheng)產(chan)時，最(zui)好選(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)滾動(dong)爐(lu)(lu)，輥(gun)底(di)爐(lu)(lu)。6．對(dui)(dui)成(cheng)批(pi)(pi)(pi)的定(ding)(ding)型(xing)零(ling)(ling)件(jian)(jian)，生(sheng)產(chan)上可(ke)選(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)推桿式(shi)(shi)(shi)(shi)或(huo)傳送帶(dai)式(shi)(shi)(shi)(shi)電(dian)阻(zu)爐(lu)(lu)（推桿爐(lu)(lu)或(huo)鑄(zhu)帶(dai)爐(lu)(lu)）7．小型(xing)機械(xie)零(ling)(ling)件(jian)(jian)如：螺釘，螺母等(deng)可(ke)選(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)振底(di)式(shi)(shi)(shi)(shi)爐(lu)(lu)或(huo)網帶(dai)式(shi)(shi)(shi)(shi)爐(lu)(lu)。8．鋼球及滾柱熱(re)處(chu)理可(ke)選(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)內螺旋的回轉管(guan)爐(lu)(lu)。9．有(you)色(se)(se)金屬錠坯(pi)在大(da)批(pi)(pi)(pi)量(liang)(liang)生(sheng)產(chan)時可(ke)用(yong)(yong)(yong)(yong)(yong)推桿式(shi)(shi)(shi)(shi)爐(lu)(lu)，而對(dui)(dui)有(you)色(se)(se)金屬小零(ling)(ling)件(jian)(jian)及材(cai)料(liao)可(ke)用(yong)(yong)(yong)(yong)(yong)空氣(qi)循環加熱(re)爐(lu)(lu)。

價格有(you)高(gao)有(you)低，接下(xia)(xia)來我(wo)們(men)來看一(yi)(yi)下(xia)(xia)，氮(dan)(dan)(dan)(dan)化爐的安(an)全操作步驟：1.滲氮(dan)(dan)(dan)(dan)前的氣(qi)(qi)(qi)(qi)(qi)體氮(dan)(dan)(dan)(dan)化爐必(bi)須(xu)是先(xian)(xian)(xian)經過正火或調(diao)(diao)質處(chu)理過的工件。先(xian)(xian)(xian)用汽(qi)油(you)和(he)酒(jiu)精擦洗氣(qi)(qi)(qi)(qi)(qi)體氮(dan)(dan)(dan)(dan)化爐工件表(biao)面，不得(de)有(you)銹斑、油(you)污(wu)、臟物存在。裝入爐內(nei)后，對稱擰緊爐蓋壓(ya)(ya)緊螺栓。2.將(jiang)(jiang)爐罐和(he)爐蓋進(jin)水(shui)口通入冷(leng)卻水(shui)進(jin)行循環水(shui)冷(leng)。爐蓋上(shang)管(guan)道冷(leng)卻水(shui)下(xia)(xia)端(duan)為進(jin)水(shui)，上(shang)端(duan)為出(chu)水(shui)，爐罐單(dan)獨進(jin)水(shui)，單(dan)獨排水(shui)，氣(qi)(qi)(qi)(qi)(qi)體氮(dan)(dan)(dan)(dan)化爐爐蓋所有(you)水(shui)管(guan)可按低進(jin)高(gao)出(chu)原則串聯，由一(yi)(yi)個口進(jin)水(shui)，一(yi)(yi)個口排水(shui)。3.升(sheng)溫(wen)前應先(xian)(xian)(xian)送氮(dan)(dan)(dan)(dan)氣(qi)(qi)(qi)(qi)(qi)排氣(qi)(qi)(qi)(qi)(qi)，排氣(qi)(qi)(qi)(qi)(qi)時流(liu)量應比使用時大(da)(da)一(yi)(yi)倍以(yi)上(shang)。排氣(qi)(qi)(qi)(qi)(qi)10分鐘后，將(jiang)(jiang)控溫(wen)儀(yi)表(biao)設(she)定(ding)到(dao)150℃，自動加熱(re)開關撥(bo)向(xiang)開，氣(qi)(qi)(qi)(qi)(qi)體氮(dan)(dan)(dan)(dan)化爐邊排氣(qi)(qi)(qi)(qi)(qi)邊加熱(re)150℃保持2h排氣(qi)(qi)(qi)(qi)(qi)，再將(jiang)(jiang)控溫(wen)儀(yi)表(biao)設(she)定(ding)到(dao)530℃，把氨(an)(an)(an)氣(qi)(qi)(qi)(qi)(qi)流(liu)量調(diao)(diao)小，保持爐內(nei)正壓(ya)(ya)。4.排氣(qi)(qi)(qi)(qi)(qi)口有(you)較(jiao)小氣(qi)(qi)(qi)(qi)(qi)流(liu)向(xiang)上(shang)的壓(ya)(ya)力，當爐溫(wen)升(sheng)到(dao)530℃時，恒(heng)(heng)溫(wen)恒(heng)(heng)流(liu)滲氮(dan)(dan)(dan)(dan)3-20h，再將(jiang)(jiang)氨(an)(an)(an)氣(qi)(qi)(qi)(qi)(qi)壓(ya)(ya)力調(diao)(diao)大(da)(da)一(yi)(yi)點，讓排氣(qi)(qi)(qi)(qi)(qi)維(wei)持適(shi)中壓(ya)(ya)力，滲氮(dan)(dan)(dan)(dan)4-70h， 再將(jiang)(jiang)氨(an)(an)(an)氣(qi)(qi)(qi)(qi)(qi)壓(ya)(ya)力調(diao)(diao)小，退氮(dan)(dan)(dan)(dan)1-2h，切(qie)斷電源，給少(shao)量氨(an)(an)(an)氣(qi)(qi)(qi)(qi)(qi)，使爐內(nei)維(wei)持正壓(ya)(ya)。5.排氣(qi)(qi)(qi)(qi)(qi)口有(you)較(jiao)小氣(qi)(qi)(qi)(qi)(qi)流(liu)向(xiang)上(shang)的壓(ya)(ya)力，當爐溫(wen)升(sheng)到(dao)530℃時，恒(heng)(heng)溫(wen)恒(heng)(heng)流(liu)滲氮(dan)(dan)(dan)(dan)3-20h，再將(jiang)(jiang)氨(an)(an)(an)氣(qi)(qi)(qi)(qi)(qi)壓(ya)(ya)力調(diao)(diao)大(da)(da)一(yi)(yi)點，讓排氣(qi)(qi)(qi)(qi)(qi)維(wei)持適(shi)中壓(ya)(ya)力，滲氮(dan)(dan)(dan)(dan)4-70h， 再將(jiang)(jiang)氨(an)(an)(an)氣(qi)(qi)(qi)(qi)(qi)壓(ya)(ya)力調(diao)(diao)小，退氮(dan)(dan)(dan)(dan)1-2h，切(qie)斷電源。

具有(you)(you)處理溫度低，時(shi)間短，工件變形(xing)小的(de)(de)特點，性質：高(gao)疲勞極限和(he)良好(hao)的(de)(de)耐磨性。1.滲氮(dan)(dan)(dan)(dan)前的(de)(de)氣(qi)(qi)(qi)(qi)體(ti)(ti)(ti)氮(dan)(dan)(dan)(dan)化爐(lu)(lu)(lu)必(bi)須(xu)是先經過(guo)正火或調質處理過(guo)的(de)(de)工件。2.先用(yong)汽油(you)和(he)酒精(jing)擦洗氣(qi)(qi)(qi)(qi)體(ti)(ti)(ti)氮(dan)(dan)(dan)(dan)化爐(lu)(lu)(lu)工件表面，不得(de)有(you)(you)銹斑、油(you)污、臟(zang)物存在。3.裝入爐(lu)(lu)(lu)內后，對稱(cheng)擰(ning)緊爐(lu)(lu)(lu)蓋(gai)壓(ya)緊螺栓。4.將(jiang)爐(lu)(lu)(lu)罐(guan)和(he)爐(lu)(lu)(lu)蓋(gai)進(jin)水(shui)(shui)口通(tong)入冷卻(que)水(shui)(shui)進(jin)行循(xun)環(huan)水(shui)(shui)冷。爐(lu)(lu)(lu)蓋(gai)上管(guan)(guan)道(dao)冷卻(que)水(shui)(shui)下端為進(jin)水(shui)(shui)，上端為出(chu)水(shui)(shui)，爐(lu)(lu)(lu)罐(guan)單(dan)獨進(jin)水(shui)(shui)，單(dan)獨排(pai)(pai)(pai)(pai)(pai)水(shui)(shui)，氣(qi)(qi)(qi)(qi)體(ti)(ti)(ti)氮(dan)(dan)(dan)(dan)化爐(lu)(lu)(lu)爐(lu)(lu)(lu)蓋(gai)所有(you)(you)水(shui)(shui)管(guan)(guan)可按低進(jin)高(gao)出(chu)原則串聯，由一個口進(jin)水(shui)(shui)，一個口排(pai)(pai)(pai)(pai)(pai)水(shui)(shui)。5.氣(qi)(qi)(qi)(qi)體(ti)(ti)(ti)氮(dan)(dan)(dan)(dan)化爐(lu)(lu)(lu)升(sheng)溫前應(ying)先送氮(dan)(dan)(dan)(dan)氣(qi)(qi)(qi)(qi)排(pai)(pai)(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)，排(pai)(pai)(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)時(shi)流量(liang)應(ying)比使(shi)用(yong)時(shi)大一倍以上。排(pai)(pai)(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)10分(fen)鐘(zhong)后，將(jiang)控溫儀(yi)表設定到150℃，自動(dong)加熱開關撥向開，氣(qi)(qi)(qi)(qi)體(ti)(ti)(ti)氮(dan)(dan)(dan)(dan)化爐(lu)(lu)(lu)邊排(pai)(pai)(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)邊加熱150℃保持(chi)(chi)2h排(pai)(pai)(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)，再(zai)將(jiang)控溫儀(yi)表設定到530℃，把氨氣(qi)(qi)(qi)(qi)流量(liang)調小，保持(chi)(chi)爐(lu)(lu)(lu)內正壓(ya)，排(pai)(pai)(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)口有(you)(you)較小氣(qi)(qi)(qi)(qi)流向上的(de)(de)壓(ya)力(li)，當爐(lu)(lu)(lu)溫升(sheng)到530℃時(shi)，恒溫恒流滲氮(dan)(dan)(dan)(dan)3-20h，再(zai)將(jiang)氨氣(qi)(qi)(qi)(qi)壓(ya)力(li)調大一點，讓排(pai)(pai)(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)維持(chi)(chi)適中壓(ya)力(li)，滲氮(dan)(dan)(dan)(dan)4-70h， 再(zai)將(jiang)氨氣(qi)(qi)(qi)(qi)壓(ya)力(li)調小，退氮(dan)(dan)(dan)(dan)1-2h，切斷電(dian)源，給少量(liang)氨氣(qi)(qi)(qi)(qi)，使(shi)爐(lu)(lu)(lu)內維持(chi)(chi)正壓(ya)，待爐(lu)(lu)(lu)溫降(jiang)到150℃以下方(fang)可停止供氨出(chu)爐(lu)(lu)(lu)。