其實行(xing)業中(zhong)都(dou)(dou)是(shi)會應(ying)(ying)用(yong)到很(hen)多(duo)的(de)(de)(de)(de)(de)設(she)備,這些(xie)設(she)備都(dou)(dou)是(shi)在這些(xie)行(xing)業運(yun)行(xing)中(zhong)能(neng)(neng)夠起到很(hen)好的(de)(de)(de)(de)(de)促(cu)進作(zuo)用(yong),產(chan)品的(de)(de)(de)(de)(de)應(ying)(ying)用(yong)領域就是(shi)比(bi)較(jiao)廣泛的(de)(de)(de)(de)(de),而且經過了行(xing)業中(zhong)的(de)(de)(de)(de)(de)實際(ji)操作(zuo),對(dui)于滲(shen)碳爐(lu)(lu)廠家產(chan)品的(de)(de)(de)(de)(de)作(zuo)用(yong)還是(shi)比(bi)較(jiao)認可的(de)(de)(de)(de)(de),那么你們知(zhi)道(dao)關(guan)(guan)于滲(shen)碳爐(lu)(lu)廠家產(chan)品的(de)(de)(de)(de)(de)操作(zuo)規范(fan)是(shi)什么嗎?1、合上電(dian)(dian)(dian)(dian)源(yuan)(yuan)開關(guan)(guan)。2、調整儀表自動控(kong)制裝置正常后才允許通電(dian)(dian)(dian)(dian)升溫(wen)。3、升溫(wen)時(shi),開動風(feng)扇(shan)(shan)。4、爐(lu)(lu)溫(wen)升到850℃時(shi),開始(shi)滴(di)入煤油(you)(you)(或甲醇)。5、爐(lu)(lu)溫(wen)到需要溫(wen)度后,切(qie)(qie)斷爐(lu)(lu)子和風(feng)扇(shan)(shan)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)源(yuan)(yuan),才能(neng)(neng)裝進工件(jian)(jian)。然后關(guan)(guan)緊爐(lu)(lu)門,接(jie)通風(feng)扇(shan)(shan)和爐(lu)(lu)子電(dian)(dian)(dian)(dian)源(yuan)(yuan),按范(fan)圍操作(zuo)。6、工件(jian)(jian)出(chu)爐(lu)(lu)后,關(guan)(guan)緊爐(lu)(lu)蓋,繼(ji)續未(wei)動風(feng)扇(shan)(shan),切(qie)(qie)斷爐(lu)(lu)子電(dian)(dian)(dian)(dian)阻絲電(dian)(dian)(dian)(dian)源(yuan)(yuan),滴(di)入少量煤油(you)(you)。7、爐(lu)(lu)溫(wen)降至850℃時(shi),停止(zhi)滴(di)入煤油(you)(you)。8、爐(lu)(lu)溫(wen)降至600℃時(shi),停止(zhi)風(feng)扇(shan)(shan),切(qie)(qie)斷電(dian)(dian)(dian)(dian)源(yuan)(yuan)開關(guan)(guan)。
江蘇輥棒鹽淬爐價格有高有低,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.供應輥棒鹽淬爐升溫(wen)前應先送(song)氮氣(qi)(qi)(qi)(qi)(qi)排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi),排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)時(shi)(shi)流(liu)量應比(bi)使用時(shi)(shi)大一倍(bei)以(yi)上。排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)10分鐘后,將(jiang)控溫(wen)儀(yi)表設(she)定(ding)到(dao)(dao)150℃,自(zi)動(dong)加熱開關撥向(xiang)開,氣(qi)(qi)(qi)(qi)(qi)體氮化(hua)爐(lu)邊(bian)排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)邊(bian)加熱150℃保(bao)(bao)持(chi)2h排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi),再(zai)(zai)(zai)將(jiang)控溫(wen)儀(yi)表設(she)定(ding)到(dao)(dao)530℃,把氨(an)(an)氣(qi)(qi)(qi)(qi)(qi)流(liu)量調小(xiao)(xiao)(xiao),保(bao)(bao)持(chi)爐(lu)內(nei)正壓(ya)。4.排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)口有較小(xiao)(xiao)(xiao)氣(qi)(qi)(qi)(qi)(qi)流(liu)向(xiang)上的(de)壓(ya)力,當(dang)爐(lu)溫(wen)升到(dao)(dao)530℃時(shi)(shi),恒溫(wen)恒流(liu)滲(shen)氮3-20h,再(zai)(zai)(zai)將(jiang)氨(an)(an)氣(qi)(qi)(qi)(qi)(qi)壓(ya)力調大一點,讓(rang)排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)維(wei)(wei)持(chi)適中壓(ya)力,滲(shen)氮4-70h, 再(zai)(zai)(zai)將(jiang)氨(an)(an)氣(qi)(qi)(qi)(qi)(qi)壓(ya)力調小(xiao)(xiao)(xiao),退(tui)氮1-2h,切斷(duan)電(dian)源(yuan),給少量氨(an)(an)氣(qi)(qi)(qi)(qi)(qi),使爐(lu)內(nei)維(wei)(wei)持(chi)正壓(ya)。5.排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)口有較小(xiao)(xiao)(xiao)氣(qi)(qi)(qi)(qi)(qi)流(liu)向(xiang)上的(de)壓(ya)力,當(dang)爐(lu)溫(wen)升到(dao)(dao)530℃時(shi)(shi),恒溫(wen)恒流(liu)滲(shen)氮3-20h,再(zai)(zai)(zai)將(jiang)氨(an)(an)氣(qi)(qi)(qi)(qi)(qi)壓(ya)力調大一點,讓(rang)排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)維(wei)(wei)持(chi)適中壓(ya)力,滲(shen)氮4-70h, 再(zai)(zai)(zai)將(jiang)氨(an)(an)氣(qi)(qi)(qi)(qi)(qi)壓(ya)力調小(xiao)(xiao)(xiao),退(tui)氮1-2h,切斷(duan)電(dian)源(yuan)。
給大家介紹下熱(re)(re)(re)(re)處理(li)加(jia)熱(re)(re)(re)(re)溫(wen)(wen)度(du)(du)三(san)種(zhong)現(xian)象(xiang):1、一般(ban)過(guo)(guo)(guo)熱(re)(re)(re)(re):熱(re)(re)(re)(re)處理(li)加(jia)熱(re)(re)(re)(re)溫(wen)(wen)度(du)(du)過(guo)(guo)(guo)高(gao)或(huo)在高(gao)溫(wen)(wen)下保(bao)溫(wen)(wen)時間過(guo)(guo)(guo)長,引起奧(ao)(ao)氏(shi)(shi)(shi)(shi)體(ti)(ti)(ti)(ti)晶粒(li)粗化(hua)稱為(wei)過(guo)(guo)(guo)熱(re)(re)(re)(re)。粗大的(de)(de)奧(ao)(ao)氏(shi)(shi)(shi)(shi)體(ti)(ti)(ti)(ti)晶粒(li)會(hui)導(dao)致鋼的(de)(de)強韌性(xing)(xing)(xing)降(jiang)低(di),脆性(xing)(xing)(xing)轉(zhuan)變(bian)溫(wen)(wen)度(du)(du)升高(gao),增加(jia)淬(cui)火(huo)(huo)(huo)(huo)時的(de)(de)變(bian)形(xing)開裂傾向。而(er)導(dao)致過(guo)(guo)(guo)熱(re)(re)(re)(re)的(de)(de)原因(yin)是爐溫(wen)(wen)儀表(biao)失控或(huo)混料(liao)(常為(wei)不(bu)懂工藝發(fa)生的(de)(de))。過(guo)(guo)(guo)熱(re)(re)(re)(re)組(zu)織可經退火(huo)(huo)(huo)(huo)、正火(huo)(huo)(huo)(huo)或(huo)多次高(gao)溫(wen)(wen)回火(huo)(huo)(huo)(huo)后,在正常情況下重(zhong)新(xin)奧(ao)(ao)氏(shi)(shi)(shi)(shi)化(hua)使晶粒(li)細化(hua)。 2、斷口遺(yi)傳(chuan)(chuan):熱(re)(re)(re)(re)處理(li)有(you)過(guo)(guo)(guo)熱(re)(re)(re)(re)組(zu)織的(de)(de)鋼材,重(zhong)新(xin)加(jia)熱(re)(re)(re)(re)淬(cui)火(huo)(huo)(huo)(huo)后,雖能(neng)使奧(ao)(ao)氏(shi)(shi)(shi)(shi)體(ti)(ti)(ti)(ti)晶粒(li)細化(hua),但有(you)時仍(reng)出(chu)現(xian)粗大顆粒(li)狀斷口。產生斷口遺(yi)傳(chuan)(chuan)的(de)(de)理(li)論爭議較多,一般(ban)認為(wei)曾因(yin)加(jia)熱(re)(re)(re)(re)溫(wen)(wen)度(du)(du)過(guo)(guo)(guo)高(gao)而(er)使MnS之類(lei)的(de)(de)雜物溶入奧(ao)(ao)氏(shi)(shi)(shi)(shi)體(ti)(ti)(ti)(ti)并富集于晶界面,而(er)冷卻時這(zhe)些(xie)夾雜物又會(hui)沿晶界面析出(chu),受沖(chong)擊(ji)時易沿粗大奧(ao)(ao)氏(shi)(shi)(shi)(shi)體(ti)(ti)(ti)(ti)晶界斷裂。 3 粗大組(zu)織的(de)(de)遺(yi)傳(chuan)(chuan):有(you)粗大馬氏(shi)(shi)(shi)(shi)體(ti)(ti)(ti)(ti)、貝氏(shi)(shi)(shi)(shi)體(ti)(ti)(ti)(ti)、魏(wei)氏(shi)(shi)(shi)(shi)體(ti)(ti)(ti)(ti)組(zu)織的(de)(de)鋼件重(zhong)新(xin)奧(ao)(ao)氏(shi)(shi)(shi)(shi)化(hua)時,以慢(man)速加(jia)熱(re)(re)(re)(re)到常規的(de)(de)淬(cui)火(huo)(huo)(huo)(huo)溫(wen)(wen)度(du)(du),甚至再低(di)一些(xie),其奧(ao)(ao)氏(shi)(shi)(shi)(shi)體(ti)(ti)(ti)(ti)晶粒(li)仍(reng)然是粗大的(de)(de),這(zhe)種(zhong)現(xian)象(xiang)稱為(wei)組(zu)織遺(yi)傳(chuan)(chuan)性(xing)(xing)(xing)。要(yao)消(xiao)除粗大組(zu)織的(de)(de)遺(yi)傳(chuan)(chuan)性(xing)(xing)(xing),可采用中間退火(huo)(huo)(huo)(huo)或(huo)多次高(gao)溫(wen)(wen)回火(huo)(huo)(huo)(huo)處理(li)。
裝爐(lu)(lu)(lu)要求:1、裝爐(lu)(lu)(lu)前(qian)必(bi)須(xu)對爐(lu)(lu)(lu)內灰塵,雜質清理干凈。2、工(gong)(gong)件(jian)必(bi)須(xu)從底(di)層向(xiang)(xiang)上(shang)層的順序裝爐(lu)(lu)(lu)(以(yi)防工(gong)(gong)件(jian)掉(diao)落危險)。3、工(gong)(gong)件(jian)短頭放在(zai)圓(yuan)形墊塊后再推進工(gong)(gong)作圓(yuan)盤內,有小孔的面朝里。4、工(gong)(gong)件(jian)的位置(zhi)以(yi)前(qian)一次裝爐(lu)(lu)(lu)位置(zhi)相(xiang)同(tong)(大(da)約200支(zhi)/爐(lu)(lu)(lu))。5、工(gong)(gong)件(jian)裝爐(lu)(lu)(lu)完成后,必(bi)須(xu)用酒精對白色(se)(se)密封(feng)圈擦洗干凈。6、用行(xing)車將(jiang)爐(lu)(lu)(lu)罐(guan)小心吊起,到達安全高度后,移動至爐(lu)(lu)(lu)體正(zheng)上(shang)方(fang),待穩定后緩慢下(xia)降,裝爐(lu)(lu)(lu)完成。二、開(kai)爐(lu)(lu)(lu)接(jie)通電源前(qian)必(bi)須(xu)檢查事項:1、爐(lu)(lu)(lu)體冷卻水循環必(bi)須(xu)開(kai)啟(qi)(閥在(zai)水平狀(zhuang)態為(wei)開(kai),垂直狀(zhuang)態為(wei)關(guan))。2、真空(kong)泵蝶閥必(bi)須(xu)在(zai)關(guan)閉(bi)狀(zhuang)態。3、氨氣罐(guan),二氧化碳罐(guan)要在(zai)關(guan)閉(bi)狀(zhuang)態。4、陽極快速接(jie)頭要連接(jie)在(zai)爐(lu)(lu)(lu)體上(shang)(和水冷卻管在(zai)一起的綠線接(jie)頭)。5、黑(hei)色(se)(se)脈沖(chong)控制盤上(shang) “電壓(ya)”旋鈕,“占空(kong)比”旋鈕要旋轉到左(zuo)邊最小值。6、黃色(se)(se)氨氣換向(xiang)(xiang)閥手柄在(zai)中間(向(xiang)(xiang)上(shang))位置(zhi)。
給大(da)家介(jie)紹下常(chang)用(yong)熱處理(li)(li)多用(yong)爐爐型(xing)的(de)(de)(de)(de)(de)選(xuan)擇:1.對(dui)于不能成(cheng)批(pi)定型(xing)生(sheng)(sheng)(sheng)產的(de)(de)(de)(de)(de),工(gong)件(jian)大(da)小(xiao)不相等(deng)(deng)的(de)(de)(de)(de)(de),種類(lei)較多的(de)(de)(de)(de)(de),要求工(gong)藝上(shang)具有通(tong)用(yong)性、多用(yong)性的(de)(de)(de)(de)(de),可(ke)(ke)選(xuan)用(yong)箱(xiang)式(shi)多用(yong)爐。2.加熱長軸(zhou)類(lei)及(ji)長的(de)(de)(de)(de)(de)絲桿(gan),管(guan)子等(deng)(deng)工(gong)件(jian)時(shi),可(ke)(ke)選(xuan)用(yong)深井式(shi)電爐。3.小(xiao)批(pi)量(liang)的(de)(de)(de)(de)(de)滲碳零(ling)(ling)(ling)件(jian),可(ke)(ke)選(xuan)用(yong)井式(shi)氣體滲碳爐。4.對(dui)于大(da)批(pi)量(liang)的(de)(de)(de)(de)(de)汽車、拖(tuo)拉(la)機齒輪等(deng)(deng)零(ling)(ling)(ling)件(jian)的(de)(de)(de)(de)(de)生(sheng)(sheng)(sheng)產可(ke)(ke)選(xuan)連續式(shi)滲碳生(sheng)(sheng)(sheng)產線或(huo)箱(xiang)式(shi)多用(yong)爐。5.對(dui)沖壓(ya)件(jian)板材(cai)坯(pi)料(liao)的(de)(de)(de)(de)(de)加熱大(da)批(pi)量(liang)生(sheng)(sheng)(sheng)產時(shi),最好選(xuan)用(yong)滾(gun)動(dong)爐,輥底爐。6.對(dui)成(cheng)批(pi)的(de)(de)(de)(de)(de)定型(xing)零(ling)(ling)(ling)件(jian),生(sheng)(sheng)(sheng)產上(shang)可(ke)(ke)選(xuan)用(yong)推桿(gan)式(shi)或(huo)傳送帶式(shi)電阻爐(推桿(gan)爐或(huo)鑄帶爐)7.小(xiao)型(xing)機械零(ling)(ling)(ling)件(jian)如(ru):螺(luo)釘,螺(luo)母等(deng)(deng)可(ke)(ke)選(xuan)用(yong)振底式(shi)爐或(huo)網帶式(shi)爐。8.鋼球及(ji)滾(gun)柱熱處理(li)(li)可(ke)(ke)選(xuan)用(yong)內螺(luo)旋的(de)(de)(de)(de)(de)回轉管(guan)爐。9.有色金(jin)屬(shu)錠(ding)坯(pi)在大(da)批(pi)量(liang)生(sheng)(sheng)(sheng)產時(shi)可(ke)(ke)用(yong)推桿(gan)式(shi)爐,而對(dui)有色金(jin)屬(shu)小(xiao)零(ling)(ling)(ling)件(jian)及(ji)材(cai)料(liao)可(ke)(ke)用(yong)空氣循(xun)環加熱爐。