平(ping)封(feng)(feng)(feng)頭(tou)(tou)(tou)噴淋(lin)(lin)淬火的方法(fa)時(shi)間： 平(ping)底封(feng)(feng)(feng)頭(tou)(tou)(tou)淬火方法(fa)通常(chang)有噴淋(lin)(lin)淬火法(fa)和強(qiang)制循環水中浸(jin)入淬火法(fa)。噴淋(lin)(lin)淬火法(fa)的冷卻效(xiao)(xiao)果好， 淬火均勻，不銹鋼平(ping)底封(feng)(feng)(feng)頭(tou)(tou)(tou)， 工件變形(xing)小。一(yi)般(ban)廠家通常(chang)是(shi)在封(feng)(feng)(feng)頭(tou)(tou)(tou)內表面采(cai)用傘形(xing)噴淋(lin)(lin)冷卻裝置， 封(feng)(feng)(feng)頭(tou)(tou)(tou)外表面用一(yi)個活動(dong)的、略小于封(feng)(feng)(feng)頭(tou)(tou)(tou)直徑的多環狀(zhuang)噴頭(tou)(tou)(tou)進(jin)行噴淋(lin)(lin)冷卻， 但是(shi)操作麻(ma)煩， 生產效(xiao)(xiao)率(lv)不高。

   為了使封(feng)頭淬火時冷(leng)卻(que)均(jun)勻，不銹(xiu)鋼平(ping)底封(feng)頭定做(zuo)， 獲得(de)冷(leng)卻(que)效果(guo)并使變形(xing)小，。水(shui)泵(beng)應具有足夠的(de)流量和(he)揚程(cheng)，以保(bao)證(zheng)工件表面(mian)噴水(shui)量不小于016 ml/ cm2#s。若采用無塔自控(kong)裝(zhuang)置(zhi)供水(shui)， 將使得(de)噴淋操作更加易(yi)于控(kong)制。

   封頭制造工藝流程如下: 熱沖壓成型(xing)——固溶處(chu)理(li)——熱校圓——穩定化處(chu)理(li)。

   把穩定(ding)化處(chu)理(li)與(yu)熱(re)校圓(yuan)結合(he)(he)進行， 將會節省(sheng)大量(liang)成(cheng)本。發(fa)揮了熱(re)沖(chong)壓(ya)成(cheng)型尺寸精(jing)度高、質量(liang)好、生產率高的(de)特(te)點， 使熱(re)沖(chong)壓(ya)成(cheng)型適合(he)(he)于加鈦(tai)、鈮穩定(ding)化的(de)不銹鋼封頭批(pi)量(liang)生產。

平板封頭的(de)應用特點及幾何形狀

平板(ban)(ban)(ban)(ban)(ban)封(feng)頭由(you)上(shang)面(mian)板(ban)(ban)(ban)(ban)(ban)、下面(mian)板(ban)(ban)(ban)(ban)(ban)及不(bu)同直徑接管(guan)組成(cheng)，夾(jia)套(tao)內充(chong)滿冷(leng)卻水(shui)對上(shang)面(mian)板(ban)(ban)(ban)(ban)(ban)進行冷(leng)卻。然而，由(you)于(yu)該平板(ban)(ban)(ban)(ban)(ban)封(feng)頭為(wei)異型結構(gou)，不(bu)宜采用現有壓力(li)容(rong)器平板(ban)(ban)(ban)(ban)(ban)封(feng)頭標準進行規(gui)范(fan)設(she)計，需(xu)要其(qi)他方(fang)法(fa)，如(ru)分(fen)析設(she)計方(fang)法(fa)，對其(qi)進行詳細的(de)應力(li)分(fen)析和結構(gou)設(she)計，而且工(gong)程中關心的(de)另外一個重要的(de)問(wen)題就(jiu)是(shi)如(ru)何合理布(bu)置上(shang)、下面(mian)板(ban)(ban)(ban)(ban)(ban)的(de)厚度(du)，使(shi)結構(gou)在滿足(zu)工(gong)藝要求的(de)前提(ti)下加、經濟(ji)。

將(jiang)不(bu)銹(xiu)鋼的(de)(de)(de)(de)(de)(de)橢(tuo)(tuo)(tuo)(tuo)圓(yuan)(yuan)(yuan)(yuan)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)與筒體之(zhi)間進(jin)(jin)行(xing)(xing)(xing)焊(han)(han)接(jie)的(de)(de)(de)(de)(de)(de)時候，必須及時的(de)(de)(de)(de)(de)(de)將(jiang)焊(han)(han)縫和(he)熱影響區中(zhong)(zhong)殘留的(de)(de)(de)(de)(de)(de)焊(han)(han)渣和(he)污染物清理干凈(jing)，可(ke)(ke)(ke)以(yi)(yi)使(shi)(shi)用pt進(jin)(jin)行(xing)(xing)(xing)相關的(de)(de)(de)(de)(de)(de)檢查，或者是(shi)(shi)(shi)(shi)對(dui)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)的(de)(de)(de)(de)(de)(de)表(biao)面(mian)進(jin)(jin)行(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)酸(suan)洗；對(dui)于不(bu)銹(xiu)鋼橢(tuo)(tuo)(tuo)(tuo)圓(yuan)(yuan)(yuan)(yuan)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)的(de)(de)(de)(de)(de)(de)表(biao)面(mian)在(zai)(zai)保(bao)護上(shang)(shang)(shang)也要做到位(wei)，千萬(wan)不(bu)可(ke)(ke)(ke)以(yi)(yi)出(chu)現(xian)(xian)磕碰(peng)和(he)劃傷等現(xian)(xian)象(xiang)；不(bu)要將(jiang)碳素鋼和(he)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)之(zhi)間發(fa)生(sheng)(sheng)直(zhi)接(jie)接(jie)觸，主(zhu)(zhu)要是(shi)(shi)(shi)(shi)因(yin)(yin)為(wei)(wei)，鐵(tie)離(li)子會導致較為(wei)(wei)嚴重的(de)(de)(de)(de)(de)(de)污染。也不(bu)要在(zai)(zai)露天的(de)(de)(de)(de)(de)(de)環(huan)境之(zhi)下(xia)，直(zhi)接(jie)對(dui)不(bu)銹(xiu)鋼橢(tuo)(tuo)(tuo)(tuo)圓(yuan)(yuan)(yuan)(yuan)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)進(jin)(jin)行(xing)(xing)(xing)存放，當(dang)然也不(bu)能(neng)讓其出(chu)現(xian)(xian)淋雨(yu)的(de)(de)(de)(de)(de)(de)情況；如果是(shi)(shi)(shi)(shi)在(zai)(zai)對(dui)其進(jin)(jin)行(xing)(xing)(xing)組(zu)焊(han)(han)的(de)(de)(de)(de)(de)(de)話(hua)，一(yi)定不(bu)可(ke)(ke)(ke)以(yi)(yi)出(chu)現(xian)(xian)強制的(de)(de)(de)(de)(de)(de)現(xian)(xian)象(xiang)，不(bu)管(guan)是(shi)(shi)(shi)(shi)在(zai)(zai)結構上(shang)(shang)(shang)的(de)(de)(de)(de)(de)(de)設計，不(bu)銹(xiu)鋼平(ping)底封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)批發(fa)，還(huan)是(shi)(shi)(shi)(shi)其他方(fang)面(mian)都不(bu)可(ke)(ke)(ke)以(yi)(yi)發(fa)生(sheng)(sheng)任何拘束(shu)，因(yin)(yin)此在(zai)(zai)應(ying)力上(shang)(shang)(shang)要保(bao)證(zheng)。我們在(zai)(zai)對(dui)不(bu)銹(xiu)鋼橢(tuo)(tuo)(tuo)(tuo)圓(yuan)(yuan)(yuan)(yuan)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)進(jin)(jin)行(xing)(xing)(xing)試(shi)壓試(shi)驗(yan)的(de)(de)(de)(de)(de)(de)時候，水中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)氯離(li)子在(zai)(zai)整個含(han)量上(shang)(shang)(shang)，也是(shi)(shi)(shi)(shi)不(bu)可(ke)(ke)(ke)以(yi)(yi)超出(chu)25mg/L，當(dang)完成整個試(shi)驗(yan)之(zhi)后，應(ying)該將(jiang)其立(li)刻吹干；即便是(shi)(shi)(shi)(shi)對(dui)橢(tuo)(tuo)(tuo)(tuo)圓(yuan)(yuan)(yuan)(yuan)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)進(jin)(jin)行(xing)(xing)(xing)酸(suan)洗，山(shan)西平(ping)底封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)，也不(bu)能(neng)使(shi)(shi)用或者是(shi)(shi)(shi)(shi)其他類的(de)(de)(de)(de)(de)(de)還(huan)原(yuan)酸(suan)。各種類型(xing)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)管(guan)帽 油罐封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou) 大(da)口(kou)徑(jing)對(dui)焊(han)(han)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)旋壓封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou) 壓力罐封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou) 橢(tuo)(tuo)(tuo)(tuo)圓(yuan)(yuan)(yuan)(yuan)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou) 平(ping)底封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou) 球形封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou) 等大(da)口(kou)徑(jing)橢(tuo)(tuo)(tuo)(tuo)圓(yuan)(yuan)(yuan)(yuan)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)，大(da)口(kou)徑(jing)橢(tuo)(tuo)(tuo)(tuo)圓(yuan)(yuan)(yuan)(yuan)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)又名為(wei)(wei)大(da)口(kou)徑(jing)橢(tuo)(tuo)(tuo)(tuo)圓(yuan)(yuan)(yuan)(yuan)形封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)、橢(tuo)(tuo)(tuo)(tuo)圓(yuan)(yuan)(yuan)(yuan)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)即為(wei)(wei)由旋轉橢(tuo)(tuo)(tuo)(tuo)圓(yuan)(yuan)(yuan)(yuan)球面(mian)和(he)圓(yuan)(yuan)(yuan)(yuan)筒形直(zhi)段兩部分(fen)組(zu)成的(de)(de)(de)(de)(de)(de)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)，習慣上(shang)(shang)(shang)稱為(wei)(wei)標準橢(tuo)(tuo)(tuo)(tuo)圓(yuan)(yuan)(yuan)(yuan)形封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)。橢(tuo)(tuo)(tuo)(tuo)圓(yuan)(yuan)(yuan)(yuan)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)因(yin)(yin)綜合性能(neng)較好，被廣泛(fan)用于中(zhong)(zhong)低壓容(rong)器(qi)。大(da)口(kou)徑(jing)橢(tuo)(tuo)(tuo)(tuo)圓(yuan)(yuan)(yuan)(yuan)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)廣泛(fan)應(ying)用與石(shi)油、電(dian)子、化工、、輕紡(fang)、食品、機械(xie)、建筑、航(hang)(hang)空(kong)航(hang)(hang)天等行(xing)(xing)(xing)業(ye)。大(da)口(kou)徑(jing)橢(tuo)(tuo)(tuo)(tuo)圓(yuan)(yuan)(yuan)(yuan)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)是(shi)(shi)(shi)(shi)石(shi)油化工、原(yuan)子能(neng)到食品藥(yao)械(xie)諸多行(xing)(xing)(xing)業(ye)壓力容(rong)器(qi)設備中(zhong)(zhong)不(bu)可(ke)(ke)(ke)缺少的(de)(de)(de)(de)(de)(de)重要部件，是(shi)(shi)(shi)(shi)壓力容(rong)器(qi)上(shang)(shang)(shang)的(de)(de)(de)(de)(de)(de)端蓋，是(shi)(shi)(shi)(shi)壓力容(rong)器(qi)的(de)(de)(de)(de)(de)(de)一(yi)個主(zhu)(zhu)要承壓部件，封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)的(de)(de)(de)(de)(de)(de)品質直(zhi)接(jie)關系到壓力容(rong)器(qi)的(de)(de)(de)(de)(de)(de)長期運(yun)行(xing)(xing)(xing)。