不銹鋼冷軋工藝流程為:熱軋鋼卷準備-熱卷退火酸洗一鋼卷研磨-冷軋-冷軋帶鋼退火酸洗-調質軋制一精加工研磨一精整,不銹鋼的冷軋生產工藝流程如圖2-2-2所示。


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  經酸洗后(hou)的原料表(biao)面(mian)若有缺陷或成(cheng)品(pin)(pin)表(biao)面(mian)要(yao)求極高時(shi),不能(neng)直接軋制,需要(yao)對原料進行修磨后(hou)才能(neng)軋制。軋制一般(ban)能(neng)在(zai)一個(ge)軋程(cheng)內完成(cheng),需要(yao)兩個(ge)或兩個(ge)以上軋程(cheng)時(shi),必須(xu)經過中(zhong)間軟(ruan)化退火,就增加了軋制成(cheng)本。在(zai)一個(ge)軋程(cheng)內完成(cheng)軋制,往往根據產品(pin)(pin)厚(hou)度來(lai)選擇原料厚(hou)度。


  不銹(xiu)鋼冷軋工序的主體裝備非常復雜,生產全線主要包括以下設備:


1. 原料退火(huo)酸(suan)洗設備


   原料退火酸洗(xi)(xi)線又稱熱線,主(zhu)要包括(kuo)退火和酸洗(xi)(xi)兩個功(gong)(gong)能(neng)(neng),主(zhu)要設備(bei)組(zu)成有開卷(juan)機(ji)(ji)、焊機(ji)(ji)、活套(tao)、退火爐、冷卻段、破鱗(lin)機(ji)(ji)、拋丸(wan)機(ji)(ji)、酸洗(xi)(xi)部(bu)分、卷(juan)取機(ji)(ji)。根據不(bu)同的(de)需要,部(bu)分原料酸洗(xi)(xi)線還會配(pei)備(bei)軋制、平整、切(qie)邊等(deng)功(gong)(gong)能(neng)(neng)設備(bei)。


2. 軋機設備


   一(yi)般而言,不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)冷(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)(ya)(ya)工(gong)藝中(zhong)用(yong)來生(sheng)產不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)的(de)冷(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)(ya)(ya)機(ji)(ji)主要是(shi)(shi)二(er)十(shi)輥(gun)(gun)(gun)(gun)(gun)軋(ya)(ya)(ya)(ya)(ya)(ya)機(ji)(ji)。因(yin)其具(ju)有(you)良(liang)好(hao)的(de)剛度(du)(du),在(zai)生(sheng)產不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)過程(cheng)中(zhong)有(you)廣泛的(de)應(ying)用(yong)。多(duo)(duo)采用(yong)熱(re)軋(ya)(ya)(ya)(ya)(ya)(ya)厚度(du)(du)在(zai)3.0~5.5毫米的(de)不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)熱(re)軋(ya)(ya)(ya)(ya)(ya)(ya)產品,經過冷(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)(ya)(ya)設備的(de)壓延加(jia)(jia)工(gong)之(zhi)后,生(sheng)產成不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)冷(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)(ya)(ya)產品。當前(qian)不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)冷(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)(ya)(ya)主要生(sheng)產工(gong)藝為(wei)(wei)三大(da)類:不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)單機(ji)(ji)架(jia)冷(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)(ya)(ya)、不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)多(duo)(duo)機(ji)(ji)架(jia)冷(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)(ya)(ya)和不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)連續(xu)軋(ya)(ya)(ya)(ya)(ya)(ya)制(zhi)。由(you)于冷(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)(ya)(ya)是(shi)(shi)在(zai)金屬(shu)再(zai)結晶溫(wen)度(du)(du)以(yi)下進(jin)行(xing),加(jia)(jia)工(gong)溫(wen)度(du)(du)低,因(yin)此(ci)在(zai)冷(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)(ya)(ya)過程(cheng)中(zhong),金屬(shu)變形(xing)抗力(li)(li)增大(da)、軋(ya)(ya)(ya)(ya)(ya)(ya)制(zhi)壓力(li)(li)增高、同時(shi)金屬(shu)塑形(xing)降(jiang)低、容易(yi)產生(sheng)脆裂,這(zhe)種(zhong)(zhong)現象被稱(cheng)為(wei)(wei)加(jia)(jia)工(gong)硬(ying)化現象。當鋼(gang)種(zhong)(zhong)一(yi)定(ding)時(shi),加(jia)(jia)工(gong)硬(ying)化程(cheng)度(du)(du)與變形(xing)程(cheng)度(du)(du)有(you)關,變形(xing)量加(jia)(jia)大(da),加(jia)(jia)工(gong)硬(ying)化程(cheng)度(du)(du)大(da)。當加(jia)(jia)工(gong)硬(ying)化達到一(yi)定(ding)程(cheng)度(du)(du)時(shi),就(jiu)不(bu)(bu)(bu)(bu)(bu)能繼(ji)續(xu)軋(ya)(ya)(ya)(ya)(ya)(ya)制(zhi)。因(yin)此(ci),冷(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)(ya)(ya)板帶(dai)材經受(shou)一(yi)定(ding)冷(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)(ya)(ya)總(zong)變形(xing)后,往(wang)往(wang)需(xu)要經軟化熱(re)處理(再(zai)結晶退(tui)火或固溶處理等),使之(zhi)恢(hui)復塑性、降(jiang)低抗力(li)(li),以(yi)利于繼(ji)續(xu)加(jia)(jia)工(gong)。為(wei)(wei)實(shi)現高效(xiao)率、高精度(du)(du)生(sheng)產,必須采用(yong)剛性大(da)、小直(zhi)徑(jing)工(gong)作(zuo)輥(gun)(gun)(gun)(gun)(gun)和大(da)張力(li)(li)的(de)多(duo)(duo)輥(gun)(gun)(gun)(gun)(gun)可逆(ni)式軋(ya)(ya)(ya)(ya)(ya)(ya)機(ji)(ji)成卷(juan)軋(ya)(ya)(ya)(ya)(ya)(ya)制(zhi),是(shi)(shi)不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)冷(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)(ya)(ya)的(de)顯著特點。最初(chu),不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)冷(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)(ya)(ya)多(duo)(duo)采用(yong)四輥(gun)(gun)(gun)(gun)(gun)可逆(ni)式軋(ya)(ya)(ya)(ya)(ya)(ya)機(ji)(ji)。這(zhe)種(zhong)(zhong)軋(ya)(ya)(ya)(ya)(ya)(ya)機(ji)(ji)由(you)于剛性不(bu)(bu)(bu)(bu)(bu)足,軋(ya)(ya)(ya)(ya)(ya)(ya)制(zhi)精度(du)(du)不(bu)(bu)(bu)(bu)(bu)高,而且工(gong)作(zuo)輥(gun)(gun)(gun)(gun)(gun)、支承(cheng)輥(gun)(gun)(gun)(gun)(gun)、牌坊都很龐大(da),針對這(zhe)種(zhong)(zhong)情況開發(fa)出了包括八(ba)輥(gun)(gun)(gun)(gun)(gun)、十(shi)二(er)輥(gun)(gun)(gun)(gun)(gun)、二(er)十(shi)輥(gun)(gun)(gun)(gun)(gun)等的(de)多(duo)(duo)輥(gun)(gun)(gun)(gun)(gun)軋(ya)(ya)(ya)(ya)(ya)(ya)機(ji)(ji)。不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)冷(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)(ya)(ya)軋(ya)(ya)(ya)(ya)(ya)(ya)機(ji)(ji)中(zhong)具(ju)有(you)代(dai)表(biao)性的(de)是(shi)(shi)二(er)十(shi)輥(gun)(gun)(gun)(gun)(gun)森(sen)吉米爾(er)(er)軋(ya)(ya)(ya)(ya)(ya)(ya)機(ji)(ji)。目(mu)前(qian)不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)的(de)冷(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)(ya)(ya)大(da)多(duo)(duo)數(shu)采用(yong)這(zhe)種(zhong)(zhong)軋(ya)(ya)(ya)(ya)(ya)(ya)機(ji)(ji)。森(sen)吉米爾(er)(er)軋(ya)(ya)(ya)(ya)(ya)(ya)機(ji)(ji)絕(jue)大(da)部(bu)分都是(shi)(shi)單機(ji)(ji)架(jia)生(sheng)產。


3. 成品(pin)退火酸洗設備(bei)


  成(cheng)品(pin)(pin)退火(huo)(huo)酸(suan)(suan)洗(xi)(xi)(xi)(xi)主要是使經冷軋(ya)后的(de)(de)不銹鋼(gang)通(tong)過(guo)退火(huo)(huo)軟化(hua),得到要求(qiu)的(de)(de)性(xing)能,并通(tong)過(guo)酸(suan)(suan)洗(xi)(xi)(xi)(xi)消除退火(huo)(huo)過(guo)程中(zhong)(zhong)生成(cheng)的(de)(de)氧化(hua)皮等(deng)雜(za)質,進(jin)一步(bu)提高帶(dai)鋼(gang)的(de)(de)表(biao)面(mian)(mian)質量。目前(qian)世界(jie)上成(cheng)熟的(de)(de)爐型有(you)周期(qi)式(shi)(shi)(shi)退火(huo)(huo)爐和(he)連(lian)續式(shi)(shi)(shi)退火(huo)(huo)爐。連(lian)續爐主要有(you)臥式(shi)(shi)(shi)爐和(he)立式(shi)(shi)(shi)爐兩種。立式(shi)(shi)(shi)爐(俗(su)稱(cheng)光亮爐)主要用于生產厚度為(wei)0.2~2毫米的(de)(de)表(biao)面(mian)(mian)等(deng)級為(wei)BA的(de)(de)鏡(jing)面(mian)(mian)板,且受現有(you)馬弗爐長度的(de)(de)限制,其產量很低。而(er)臥式(shi)(shi)(shi)爐的(de)(de)產量高,且其產品(pin)(pin)規格范圍廣,生產表(biao)面(mian)(mian)等(deng)級為(wei)2B或2D的(de)(de)普通(tong)冷軋(ya)產品(pin)(pin)。近年來酸(suan)(suan)洗(xi)(xi)(xi)(xi)工(gong)藝和(he)設備(bei)正(zheng)越來越為(wei)適應環保和(he)改(gai)善工(gong)作條(tiao)件而(er)不斷改(gai)進(jin),酸(suan)(suan)洗(xi)(xi)(xi)(xi)工(gong)藝先后經歷了化(hua)學酸(suan)(suan)洗(xi)(xi)(xi)(xi)、H2SO4電(dian)解(jie)(jie)酸(suan)(suan)洗(xi)(xi)(xi)(xi)+化(hua)學酸(suan)(suan)洗(xi)(xi)(xi)(xi)、堿(jian)液(鹽浴(yu))+電(dian)解(jie)(jie)酸(suan)(suan)洗(xi)(xi)(xi)(xi)+化(hua)學酸(suan)(suan)洗(xi)(xi)(xi)(xi)、中(zhong)(zhong)性(xing)鹽電(dian)解(jie)(jie)酸(suan)(suan)洗(xi)(xi)(xi)(xi)+化(hua)學酸(suan)(suan)洗(xi)(xi)(xi)(xi)等(deng)階段,工(gong)藝流(liu)程為(wei):1號(hao)(hao)電(dian)解(jie)(jie)槽(cao)-2號(hao)(hao)電(dian)解(jie)(jie)槽(cao)-3號(hao)(hao)電(dian)解(jie)(jie)槽(cao)-1號(hao)(hao)刷洗(xi)(xi)(xi)(xi)機-4號(hao)(hao)電(dian)解(jie)(jie)槽(cao)-2號(hao)(hao)刷洗(xi)(xi)(xi)(xi)機-5號(hao)(hao)化(hua)學槽(cao)-6號(hao)(hao)化(hua)學槽(cao)一預清洗(xi)(xi)(xi)(xi)-3號(hao)(hao)刷洗(xi)(xi)(xi)(xi)機一最終清洗(xi)(xi)(xi)(xi)一烘干機。


4. 精整設(she)備(bei)


  精整(zheng)(zheng)是(shi)使冷(leng)軋板(ban)帶(dai)(dai)鋼(gang)成為交貨狀態產(chan)品(pin)的(de)工(gong)藝過程,其目的(de)是(shi)保證產(chan)品(pin)的(de)實物要(yao)(yao)(yao)求(qiu)(qiu)和質量。精整(zheng)(zheng)包括平(ping)(ping)(ping)整(zheng)(zheng)、縱(zong)(zong)切(qie)、橫切(qie)、拉矯(jiao)等工(gong)序(xu)。有(you)時根據用(yong)戶(hu)要(yao)(yao)(yao)求(qiu)(qiu)還要(yao)(yao)(yao)進行修磨(mo),獲得磨(mo)砂(sha)板(ban)、發紋(wen)板(ban)等。帶(dai)(dai)鋼(gang)平(ping)(ping)(ping)整(zheng)(zheng)主(zhu)要(yao)(yao)(yao)是(shi)改(gai)善(shan)板(ban)形,確保鋼(gang)板(ban)的(de)平(ping)(ping)(ping)直(zhi)度符合(he)用(yong)戶(hu)要(yao)(yao)(yao)求(qiu)(qiu)。對于某些特定(ding)的(de)鋼(gang)種,平(ping)(ping)(ping)整(zheng)(zheng)經過一定(ding)的(de)延(yan)伸能(neng)夠改(gai)善(shan)帶(dai)(dai)鋼(gang)的(de)力學性能(neng)。此外,帶(dai)(dai)鋼(gang)平(ping)(ping)(ping)整(zheng)(zheng)還可(ke)以按用(yong)戶(hu)需(xu)要(yao)(yao)(yao)確保帶(dai)(dai)鋼(gang)表面(mian)光潔(jie)度或一定(ding)的(de)粗糙度。同時通過平(ping)(ping)(ping)整(zheng)(zheng)工(gong)作輥面(mian),帶(dai)(dai)鋼(gang)表面(mian)還可(ke)以得到一定(ding)的(de)花紋(wen)圖案。橫縱(zong)(zong)切(qie)、拉矯(jiao)主(zhu)要(yao)(yao)(yao)是(shi)把帶(dai)(dai)鋼(gang)加工(gong)成具(ju)有(you)用(yong)戶(hu)所需(xu)要(yao)(yao)(yao)的(de)尺寸和單位(wei)質量的(de)板(ban)、帶(dai)(dai)卷(juan)材(cai)。



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 至(zhi)德鋼業,我們根據(ju)您(nin)的實際(ji)需求,給出(chu)參考建議,為您(nin)提供高(gao)性價比的不(bu)銹(xiu)鋼管道及配件。