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公司(si)主營:鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian)定制加工(gong),筒類鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian),異(yi)型鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian),不銹(xiu)鋼鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian),合金(jin)鋼鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian),碳鋼鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian),合金(jin)鋼鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian),304鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian)鍛(duan)(duan)(duan)(duan)造,316鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian),45#鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian),軸鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian),非標件(jian)(jian)(jian)鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian)加工(gong),環鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian)加工(gong),大口(kou)徑法蘭(lan),對焊(han)法蘭(lan),法蘭(lan)環鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian)等,歡迎來電咨(zi)詢!合金(jin)鋼鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian)
以下內容由本公(gong)司為您提供,今天我們來分享合金鋼鍛件的內容,希望對大家有所幫(bang)助:
山西鍛件廠的(de)余熱(re)利用(yong)有什么(me)意義?
機械零(ling)件(jian)大量采用(yong)碳素結(jie)構(gou)鋼(gang)和低合金(jin)結(jie)構(gou)鋼(gang),其(qi)鍛件(jian)被常用(yong)的熱(re)處理工藝(yi)為(wei)正(zheng)火、等溫正(zheng)火、退(tui)火和調質。
調質能耗(hao):采用連(lian)(lian)續式電阻爐,淬(cui)火溫度840℃~860℃,合金鋼筒體鍛件(jian)(jian),每(mei)kg鍛件(jian)(jian)實際(ji)耗(hao)電約為0.6kWh.采用連(lian)(lian)續式電阻同(tong)火爐,回(hui)火溫度550℃~650℃,每(mei)kg鍛件(jian)(jian)實際(ji)耗(hao)電約0.4kWh。
正火(huo)能(neng)耗(hao):采(cai)用連續式電(dian)阻爐(lu),正火(huo)溫(wen)度930℃~960℃,江蘇合金鋼(gang)鍛件,每kg鍛件實際耗(hao)電(dian)為0.5kWh。
等(deng)(deng)溫(wen)正(zheng)火能耗(hao):采用連續式電阻(zu)等(deng)(deng)溫(wen)正(zheng)火爐,加熱溫(wen)度(du)為920℃~940℃,快速冷卻,等(deng)(deng)溫(wen)溫(wen)度(du)600℃~650℃,每kg鍛件(jian)實際能耗(hao)約(yue)為0.8kWh。
以上數(shu)據是統計連續式電(dian)(dian)(dian)(dian)阻爐全(quan)年的實(shi)際平均值,例如實(shi)際測量連續式鑄鏈電(dian)(dian)(dian)(dian)阻淬火(huo)爐24h生產的單(dan)位(wei)電(dian)(dian)(dian)(dian)耗(hao)約0.5kWh/kg,但是,由于(yu)在(zai)全(quan)年生產過程中,故(gu)障(zhang)停爐等(deng)各種原因反復升溫,其每千克鍛(duan)件實(shi)際耗(hao)電(dian)(dian)(dian)(dian)為(wei)0.6kWh。
以(yi)上(shang)數據僅供參考,因為鍛件(jian)熱處理能(neng)耗(hao)(hao)大(da)小(xiao)由爐(lu)型、裝載方式(shi)(shi)、鋼(gang)種和生產方式(shi)(shi)決定,其(qi)中周期加(jia)(jia)熱爐(lu)比連(lian)續加(jia)(jia)熱爐(lu)能(neng)耗(hao)(hao)大(da),例如連(lian)續式(shi)(shi)網帶電阻(zu)爐(lu)或連(lian)續式(shi)(shi)鑄鏈(lian)電阻(zu)爐(lu)能(neng)耗(hao)(hao)損失(shi)較(jiao)小(xiao),而臺車(che)式(shi)(shi)電阻(zu)爐(lu)能(neng)耗(hao)(hao)損失(shi)就較(jiao)大(da)。
由(you)以上(shang)分(fen)析可知(zhi),鍛件在熱處(chu)理(li)過程中要(yao)消耗(hao)很多(duo)能(neng)源,因(yin)此國(guo)外工(gong)業發達國(guo)家均高度重(zhong)視鍛件的余熱利用,大量采用鍛件余熱熱處(chu)理(li)工(gong)藝,國(guo)內使用也較多(duo),但尚不普及。
以上就是關于合金鋼鍛件的分享,希望能給大家提供到幫助,了解更多關于合金鋼鍛件的問題歡迎來電咨詢,如您需要,竭誠為您服務。
公司主營:鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)定制(zhi)加工(gong),筒類鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian),異(yi)型鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian),不銹(xiu)鋼(gang)(gang)(gang)(gang)鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian),合金(jin)鋼(gang)(gang)(gang)(gang)鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian),碳鋼(gang)(gang)(gang)(gang)鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian),合金(jin)鋼(gang)(gang)(gang)(gang)鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian),定襄合金(jin)鋼(gang)(gang)(gang)(gang)鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)廠,304鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)鍛(duan)(duan)(duan)(duan)(duan)造,316鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian),45#鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian),軸鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian),非標件(jian)(jian)(jian)鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)加工(gong),環鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)加工(gong),大口徑(jing)法蘭,對焊法蘭,法蘭環鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)等(deng),歡(huan)迎來(lai)電咨詢!合金(jin)鋼(gang)(gang)(gang)(gang)鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)
以下內(nei)容(rong)由本(ben)公司為您(nin)提供,今天(tian)我們來分享合金鋼鍛(duan)件的內(nei)容(rong),希望(wang)對大家有所幫助(zhu):
鍛造鍛件時(shi)熱(re)傳遞的(de)基礎知(zhi)識
輻射傳熱
由(you)鍛(duan)件表面直(zhi)接(jie)向外界發射(she)可(ke)見(jian)的(de)(de)(de)和不可(ke)見(jian)的(de)(de)(de)射(she)線,在空間傳(chuan)(chuan)(chuan)遞(di)(di)(di)熱(re)(re)(re)能(neng)(neng)(neng)的(de)(de)(de)現(xian)象(xiang)稱為輻(fu)射(she)傳(chuan)(chuan)(chuan)熱(re)(re)(re)。輻(fu)射(she)傳(chuan)(chuan)(chuan)熱(re)(re)(re)與傳(chuan)(chuan)(chuan)導傳(chuan)(chuan)(chuan)熱(re)(re)(re)、對(dui)流傳(chuan)(chuan)(chuan)熱(re)(re)(re)是有(you)本質區別的(de)(de)(de),它在傳(chuan)(chuan)(chuan)遞(di)(di)(di)熱(re)(re)(re)能(neng)(neng)(neng)的(de)(de)(de)過程中,不需要相互接(jie)觸(chu),也(ye)無需質點的(de)(de)(de)移動,是一(yi)種(zhong)非接(jie)觸(chu)傳(chuan)(chuan)(chuan)遞(di)(di)(di)熱(re)(re)(re)能(neng)(neng)(neng)的(de)(de)(de)方式,即使在真空中,輻(fu)射(she)傳(chuan)(chuan)(chuan)熱(re)(re)(re)也(ye)照常能(neng)(neng)(neng)進行。太陽通(tong)過茫茫宇宙空間向地球傳(chuan)(chuan)(chuan)遞(di)(di)(di)熱(re)(re)(re)量,我們能(neng)(neng)(neng)感覺到燒紅工件所發出的(de)(de)(de)熱(re)(re)(re)量,都是輻(fu)射(she)傳(chuan)(chuan)(chuan)熱(re)(re)(re)的(de)(de)(de)典型實(shi)例(li)。輻(fu)射(she)傳(chuan)(chuan)(chuan)熱(re)(re)(re)的(de)(de)(de)另一(yi)特點是在能(neng)(neng)(neng)量傳(chuan)(chuan)(chuan)遞(di)(di)(di)的(de)(de)(de)過程中,伴隨著能(neng)(neng)(neng)量形(xing)式的(de)(de)(de)變化。
例如,太陽(yang)內部熱(re)核(he)反應產生(sheng)巨大的(de)熱(re)能(neng)(neng),部分(fen)熱(re)能(neng)(neng)轉變(bian)成(cheng)輻射能(neng)(neng),以(yi)電磁波的(de)形式向外發(fa)射,而地球吸收部分(fen)輻射能(neng)(neng)以(yi)后,又轉化成(cheng)熱(re)能(neng)(neng)。
任何物體(ti)都不斷地向四(si)周著輻射(she)能,同時它們也吸(xi)收、反射(she)別的(de)(de)(de)物體(ti)投來的(de)(de)(de)輻射(she)能。兩個物體(ti)之間(jian)的(de)(de)(de)相(xiang)互輻射(she),必(bi)然引起熱(re)(re)(re)量從溫(wen)度較高(gao)的(de)(de)(de)物體(ti)向溫(wen)度較低的(de)(de)(de)物體(ti)轉移。輻射(she)傳熱(re)(re)(re)在(zai)中(zhong)、高(gao)溫(wen)熱(re)(re)(re)處(chu)理爐的(de)(de)(de)熱(re)(re)(re)交換(huan)中(zhong)起主要作用。
本期內容(rong)就(jiu)跟大家(jia)分享(xiang)到(dao)這(zhe)里(li)了,合金鋼鍛(duan)件廠,更多關于合金鋼鍛(duan)件的(de)精彩資(zi)訊請繼續關注我們吧!
公司(si)主營:鍛件(jian)(jian)(jian)(jian)(jian)定制加(jia)工,筒類鍛件(jian)(jian)(jian)(jian)(jian),異(yi)型鍛件(jian)(jian)(jian)(jian)(jian),不銹鋼(gang)鍛件(jian)(jian)(jian)(jian)(jian),合金鋼(gang)鍛件(jian)(jian)(jian)(jian)(jian),碳(tan)鋼(gang)鍛件(jian)(jian)(jian)(jian)(jian),合金鋼(gang)鍛件(jian)(jian)(jian)(jian)(jian),304鍛件(jian)(jian)(jian)(jian)(jian)鍛造,316鍛件(jian)(jian)(jian)(jian)(jian),45#鍛件(jian)(jian)(jian)(jian)(jian),軸鍛件(jian)(jian)(jian)(jian)(jian),非標件(jian)(jian)(jian)(jian)(jian)鍛件(jian)(jian)(jian)(jian)(jian)加(jia)工,環鍛件(jian)(jian)(jian)(jian)(jian)加(jia)工,大(da)口徑(jing)法(fa)(fa)蘭,對焊法(fa)(fa)蘭,法(fa)(fa)蘭環鍛件(jian)(jian)(jian)(jian)(jian)等,歡迎來電咨詢!合金鋼(gang)鍛件(jian)(jian)(jian)(jian)(jian)
以下(xia)內(nei)容(rong)由本公司為您提供(gong),今天我們來分享合金鋼(gang)鍛(duan)件的內(nei)容(rong),希望對大家有所幫(bang)助:
鍛(duan)造鍛(duan)件時退火的種類?
再(zai)結(jie)晶(jing)退火(huo):再(zai)結(jie)晶(jing)退火(huo)又稱為中間(jian)退火(huo)。它是指將(jiang)冷塑性(xing)變形(xing)(xing)加工的(de)鍛(duan)件加熱(re)到(dao)再(zai)結(jie)晶(jing)溫(wen)度以(yi)上,保持(chi)適當時間(jian),通過再(zai)結(jie)晶(jing)使冷塑性(xing)變形(xing)(xing)過程中產生的(de)晶(jing)體學缺陷(xian)基本(ben)消(xiao)失(shi),重新(xin)形(xing)(xing)成均勻的(de)等(deng)軸(zhou)晶(jing)粒,以(yi)消(xiao)除形(xing)(xing)變強化效應和殘留(liu)應力的(de)退火(huo)工藝。
再結晶退火就(jiu)是利(li)用(yong)材料冷塑(su)性(xing)變形后,加(jia)熱(re)時(shi)的(de)(de)(de)再結晶現象,使被(bei)拉長、壓扁(bian)或破碎的(de)(de)(de)晶粒變為(wei)均(jun)勻(yun)的(de)(de)(de)等軸晶粒,來(lai)達(da)到消(xiao)除(chu)加(jia)工硬化,恢復(fu)塑(su)變能力,以(yi)利(li)于進一步變形加(jia)工的(de)(de)(de)目的(de)(de)(de)。
均勻(yun)(yun)化(hua)退火(huo):又(you)稱(cheng)為擴散退火(huo)。以減少鍛件化(hua)學成分(fen)和(he)組織的不均勻(yun)(yun)性(xing)程度為主要目的,將其(qi)加(jia)熱到高溫并(bing)長時間保持,然后(hou)緩慢冷卻的退火(huo)工(gong)藝。
均勻(yun)(yun)(yun)化(hua)退火(huo)的加熱(re)溫度,一(yi)(yi)般選(xuan)在鋼的熔點以(yi)下100~2OO℃,通(tong)常(chang)為(wei)(wei)1050~1150℃,保(bao)溫時間一(yi)(yi)般為(wei)(wei)10~15h,以(yi)保(bao)證擴散充分(fen)進行,達到消除或減少化(hua)學成(cheng)分(fen)或組(zu)織不均勻(yun)(yun)(yun)的目的。由于均勻(yun)(yun)(yun)化(hua)退火(huo)的加熱(re)溫度高(gao)、時間長,晶粒必然粗(cu)大。為(wei)(wei)此(ci),必須(xu)再進行一(yi)(yi)次完全退火(huo)或正(zheng)火(huo),使(shi)組(zu)織重新細化(hua)。
本期內容就跟大家分享到這里了,更多關于合金鋼鍛件的精彩資訊請繼續關注我們吧!
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