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(bu)銹鋼(gang)的冷軋生產工藝流程如圖2-2-2所示。


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  經酸洗(xi)后的原料(liao)(liao)表面若有(you)缺陷或成(cheng)品表面要求極高(gao)時,不能直接軋(ya)(ya)制(zhi),需(xu)要對(dui)原料(liao)(liao)進(jin)行修(xiu)磨后才能軋(ya)(ya)制(zhi)。軋(ya)(ya)制(zhi)一(yi)般能在(zai)一(yi)個(ge)軋(ya)(ya)程(cheng)(cheng)內(nei)完成(cheng),需(xu)要兩(liang)個(ge)或兩(liang)個(ge)以上(shang)軋(ya)(ya)程(cheng)(cheng)時,必須(xu)經過中(zhong)間軟化退火,就(jiu)增加了(le)軋(ya)(ya)制(zhi)成(cheng)本。在(zai)一(yi)個(ge)軋(ya)(ya)程(cheng)(cheng)內(nei)完成(cheng)軋(ya)(ya)制(zhi),往往根據(ju)產(chan)品厚度來選擇(ze)原料(liao)(liao)厚度。


  不(bu)銹鋼冷(leng)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(yuan)料退(tui)火酸(suan)洗設備


   原(yuan)料退(tui)火酸洗(xi)線又稱(cheng)熱(re)線,主要(yao)包(bao)括退(tui)火和酸洗(xi)兩個功(gong)能,主要(yao)設備組成(cheng)有(you)開卷機(ji)(ji)、焊機(ji)(ji)、活套、退(tui)火爐(lu)、冷(leng)卻段、破鱗機(ji)(ji)、拋丸(wan)機(ji)(ji)、酸洗(xi)部(bu)(bu)分(fen)、卷取(qu)機(ji)(ji)。根(gen)據不同的需要(yao),部(bu)(bu)分(fen)原(yuan)料酸洗(xi)線還(huan)會配備軋制(zhi)、平整(zheng)、切邊等功(gong)能設備。


2. 軋機設備


   一般而言,不(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)冷(leng)(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)工(gong)(gong)(gong)(gong)藝中(zhong)用(yong)來生(sheng)(sheng)產(chan)(chan)不(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)的(de)(de)冷(leng)(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)機(ji)(ji)(ji)主要(yao)是(shi)二(er)(er)十輥(gun)(gun)軋(ya)(ya)(ya)機(ji)(ji)(ji)。因(yin)其具有良(liang)好的(de)(de)剛(gang)度(du),在(zai)生(sheng)(sheng)產(chan)(chan)不(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)過程(cheng)(cheng)中(zhong)有廣泛的(de)(de)應用(yong)。多(duo)(duo)(duo)(duo)采(cai)用(yong)熱(re)軋(ya)(ya)(ya)厚度(du)在(zai)3.0~5.5毫米(mi)的(de)(de)不(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)熱(re)軋(ya)(ya)(ya)產(chan)(chan)品,經(jing)過冷(leng)(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)設備的(de)(de)壓延加(jia)工(gong)(gong)(gong)(gong)之(zhi)后,生(sheng)(sheng)產(chan)(chan)成不(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)冷(leng)(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)產(chan)(chan)品。當前不(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)冷(leng)(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)主要(yao)生(sheng)(sheng)產(chan)(chan)工(gong)(gong)(gong)(gong)藝為(wei)三大(da)(da)類:不(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)單機(ji)(ji)(ji)架(jia)冷(leng)(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)、不(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)多(duo)(duo)(duo)(duo)機(ji)(ji)(ji)架(jia)冷(leng)(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)和(he)不(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)連續(xu)軋(ya)(ya)(ya)制(zhi)(zhi)。由于冷(leng)(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)是(shi)在(zai)金(jin)屬(shu)再(zai)結晶(jing)溫(wen)度(du)以下進(jin)行,加(jia)工(gong)(gong)(gong)(gong)溫(wen)度(du)低,因(yin)此在(zai)冷(leng)(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)過程(cheng)(cheng)中(zhong),金(jin)屬(shu)變(bian)形(xing)(xing)抗(kang)力增(zeng)(zeng)大(da)(da)、軋(ya)(ya)(ya)制(zhi)(zhi)壓力增(zeng)(zeng)高、同時(shi)金(jin)屬(shu)塑(su)形(xing)(xing)降低、容(rong)易(yi)產(chan)(chan)生(sheng)(sheng)脆裂,這(zhe)種(zhong)(zhong)現象(xiang)被稱為(wei)加(jia)工(gong)(gong)(gong)(gong)硬(ying)化(hua)(hua)現象(xiang)。當鋼(gang)(gang)(gang)種(zhong)(zhong)一定(ding)時(shi),加(jia)工(gong)(gong)(gong)(gong)硬(ying)化(hua)(hua)程(cheng)(cheng)度(du)與變(bian)形(xing)(xing)程(cheng)(cheng)度(du)有關,變(bian)形(xing)(xing)量(liang)加(jia)大(da)(da),加(jia)工(gong)(gong)(gong)(gong)硬(ying)化(hua)(hua)程(cheng)(cheng)度(du)大(da)(da)。當加(jia)工(gong)(gong)(gong)(gong)硬(ying)化(hua)(hua)達到一定(ding)程(cheng)(cheng)度(du)時(shi),就(jiu)不(bu)(bu)能繼(ji)續(xu)軋(ya)(ya)(ya)制(zhi)(zhi)。因(yin)此,冷(leng)(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)板帶材經(jing)受(shou)一定(ding)冷(leng)(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)總變(bian)形(xing)(xing)后,往往需(xu)要(yao)經(jing)軟(ruan)化(hua)(hua)熱(re)處(chu)理(再(zai)結晶(jing)退(tui)火(huo)或固溶(rong)處(chu)理等),使之(zhi)恢復塑(su)性、降低抗(kang)力,以利于繼(ji)續(xu)加(jia)工(gong)(gong)(gong)(gong)。為(wei)實現高效(xiao)率、高精度(du)生(sheng)(sheng)產(chan)(chan),必須采(cai)用(yong)剛(gang)性大(da)(da)、小直徑(jing)工(gong)(gong)(gong)(gong)作(zuo)輥(gun)(gun)和(he)大(da)(da)張力的(de)(de)多(duo)(duo)(duo)(duo)輥(gun)(gun)可逆(ni)式軋(ya)(ya)(ya)機(ji)(ji)(ji)成卷軋(ya)(ya)(ya)制(zhi)(zhi),是(shi)不(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)冷(leng)(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)的(de)(de)顯著特點。最初,不(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)冷(leng)(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)多(duo)(duo)(duo)(duo)采(cai)用(yong)四輥(gun)(gun)可逆(ni)式軋(ya)(ya)(ya)機(ji)(ji)(ji)。這(zhe)種(zhong)(zhong)軋(ya)(ya)(ya)機(ji)(ji)(ji)由于剛(gang)性不(bu)(bu)足,軋(ya)(ya)(ya)制(zhi)(zhi)精度(du)不(bu)(bu)高,而且工(gong)(gong)(gong)(gong)作(zuo)輥(gun)(gun)、支(zhi)承輥(gun)(gun)、牌(pai)坊都(dou)很龐大(da)(da),針對這(zhe)種(zhong)(zhong)情況(kuang)開發(fa)出了包括(kuo)八輥(gun)(gun)、十二(er)(er)輥(gun)(gun)、二(er)(er)十輥(gun)(gun)等的(de)(de)多(duo)(duo)(duo)(duo)輥(gun)(gun)軋(ya)(ya)(ya)機(ji)(ji)(ji)。不(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)冷(leng)(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)軋(ya)(ya)(ya)機(ji)(ji)(ji)中(zhong)具有代表性的(de)(de)是(shi)二(er)(er)十輥(gun)(gun)森吉米(mi)爾(er)軋(ya)(ya)(ya)機(ji)(ji)(ji)。目前不(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)的(de)(de)冷(leng)(leng)(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)大(da)(da)多(duo)(duo)(duo)(duo)數采(cai)用(yong)這(zhe)種(zhong)(zhong)軋(ya)(ya)(ya)機(ji)(ji)(ji)。森吉米(mi)爾(er)軋(ya)(ya)(ya)機(ji)(ji)(ji)絕(jue)大(da)(da)部(bu)分都(dou)是(shi)單機(ji)(ji)(ji)架(jia)生(sheng)(sheng)產(chan)(chan)。


3. 成品退火酸洗設備(bei)


  成品退(tui)(tui)火(huo)(huo)(huo)酸(suan)(suan)(suan)(suan)(suan)洗(xi)(xi)(xi)(xi)主要(yao)是使經(jing)冷(leng)軋(ya)后的(de)(de)不銹鋼通過退(tui)(tui)火(huo)(huo)(huo)軟化(hua)(hua),得到要(yao)求的(de)(de)性能(neng),并(bing)通過酸(suan)(suan)(suan)(suan)(suan)洗(xi)(xi)(xi)(xi)消除(chu)退(tui)(tui)火(huo)(huo)(huo)過程(cheng)中生(sheng)成的(de)(de)氧化(hua)(hua)皮等(deng)(deng)雜(za)質(zhi),進(jin)一步提(ti)高(gao)帶鋼的(de)(de)表(biao)面質(zhi)量。目前世(shi)界上成熟(shu)的(de)(de)爐型(xing)有周(zhou)期式(shi)退(tui)(tui)火(huo)(huo)(huo)爐和(he)(he)連續(xu)(xu)式(shi)退(tui)(tui)火(huo)(huo)(huo)爐。連續(xu)(xu)爐主要(yao)有臥式(shi)爐和(he)(he)立式(shi)爐兩種(zhong)。立式(shi)爐(俗稱光亮爐)主要(yao)用于(yu)生(sheng)產(chan)(chan)(chan)厚度(du)為(wei)0.2~2毫米的(de)(de)表(biao)面等(deng)(deng)級為(wei)BA的(de)(de)鏡面板,且受(shou)現有馬(ma)弗爐長度(du)的(de)(de)限制(zhi),其(qi)產(chan)(chan)(chan)量很(hen)低。而臥式(shi)爐的(de)(de)產(chan)(chan)(chan)量高(gao),且其(qi)產(chan)(chan)(chan)品規格范圍廣,生(sheng)產(chan)(chan)(chan)表(biao)面等(deng)(deng)級為(wei)2B或2D的(de)(de)普通冷(leng)軋(ya)產(chan)(chan)(chan)品。近年來酸(suan)(suan)(suan)(suan)(suan)洗(xi)(xi)(xi)(xi)工(gong)藝和(he)(he)設備正越來越為(wei)適應環保和(he)(he)改善(shan)工(gong)作條件而不斷改進(jin),酸(suan)(suan)(suan)(suan)(suan)洗(xi)(xi)(xi)(xi)工(gong)藝先后經(jing)歷了化(hua)(hua)學(xue)酸(suan)(suan)(suan)(suan)(suan)洗(xi)(xi)(xi)(xi)、H2SO4電(dian)解(jie)(jie)酸(suan)(suan)(suan)(suan)(suan)洗(xi)(xi)(xi)(xi)+化(hua)(hua)學(xue)酸(suan)(suan)(suan)(suan)(suan)洗(xi)(xi)(xi)(xi)、堿液(鹽(yan)(yan)浴)+電(dian)解(jie)(jie)酸(suan)(suan)(suan)(suan)(suan)洗(xi)(xi)(xi)(xi)+化(hua)(hua)學(xue)酸(suan)(suan)(suan)(suan)(suan)洗(xi)(xi)(xi)(xi)、中性鹽(yan)(yan)電(dian)解(jie)(jie)酸(suan)(suan)(suan)(suan)(suan)洗(xi)(xi)(xi)(xi)+化(hua)(hua)學(xue)酸(suan)(suan)(suan)(suan)(suan)洗(xi)(xi)(xi)(xi)等(deng)(deng)階段,工(gong)藝流(liu)程(cheng)為(wei):1號(hao)(hao)電(dian)解(jie)(jie)槽(cao)(cao)(cao)-2號(hao)(hao)電(dian)解(jie)(jie)槽(cao)(cao)(cao)-3號(hao)(hao)電(dian)解(jie)(jie)槽(cao)(cao)(cao)-1號(hao)(hao)刷(shua)洗(xi)(xi)(xi)(xi)機(ji)-4號(hao)(hao)電(dian)解(jie)(jie)槽(cao)(cao)(cao)-2號(hao)(hao)刷(shua)洗(xi)(xi)(xi)(xi)機(ji)-5號(hao)(hao)化(hua)(hua)學(xue)槽(cao)(cao)(cao)-6號(hao)(hao)化(hua)(hua)學(xue)槽(cao)(cao)(cao)一預清洗(xi)(xi)(xi)(xi)-3號(hao)(hao)刷(shua)洗(xi)(xi)(xi)(xi)機(ji)一最終清洗(xi)(xi)(xi)(xi)一烘干機(ji)。


4. 精整設備(bei)


  精(jing)整(zheng)是使冷(leng)軋板(ban)帶(dai)(dai)鋼(gang)成(cheng)為交貨狀態產品的(de)(de)(de)工(gong)藝過程,其目(mu)的(de)(de)(de)是保證產品的(de)(de)(de)實物要(yao)(yao)(yao)求(qiu)(qiu)和質量(liang)。精(jing)整(zheng)包括平(ping)整(zheng)、縱(zong)切、橫切、拉矯等工(gong)序。有(you)時根據用(yong)戶(hu)要(yao)(yao)(yao)求(qiu)(qiu)還(huan)要(yao)(yao)(yao)進行(xing)修磨,獲(huo)得磨砂板(ban)、發紋板(ban)等。帶(dai)(dai)鋼(gang)平(ping)整(zheng)主要(yao)(yao)(yao)是改善(shan)板(ban)形,確(que)保鋼(gang)板(ban)的(de)(de)(de)平(ping)直度符合用(yong)戶(hu)要(yao)(yao)(yao)求(qiu)(qiu)。對(dui)于(yu)某(mou)些(xie)特定的(de)(de)(de)鋼(gang)種,平(ping)整(zheng)經過一定的(de)(de)(de)延(yan)伸能(neng)夠改善(shan)帶(dai)(dai)鋼(gang)的(de)(de)(de)力學性能(neng)。此外,帶(dai)(dai)鋼(gang)平(ping)整(zheng)還(huan)可以按用(yong)戶(hu)需要(yao)(yao)(yao)確(que)保帶(dai)(dai)鋼(gang)表面(mian)光潔度或(huo)一定的(de)(de)(de)粗(cu)糙(cao)度。同時通過平(ping)整(zheng)工(gong)作輥面(mian),帶(dai)(dai)鋼(gang)表面(mian)還(huan)可以得到(dao)一定的(de)(de)(de)花紋圖案。橫縱(zong)切、拉矯主要(yao)(yao)(yao)是把帶(dai)(dai)鋼(gang)加(jia)工(gong)成(cheng)具有(you)用(yong)戶(hu)所需要(yao)(yao)(yao)的(de)(de)(de)尺寸(cun)和單位(wei)質量(liang)的(de)(de)(de)板(ban)、帶(dai)(dai)卷材。



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 至德鋼業,我們根據您的實際需求(qiu),給出參考建(jian)議,為您提供高(gao)性價比的不銹鋼管道及(ji)配件。