封(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)是(shi)(shi)鍋(guo)(guo)爐(lu)、壓(ya)(ya)(ya)力(li)(li)容(rong)(rong)(rong)器(qi)的(de)主要受壓(ya)(ya)(ya)元件(jian)，封(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)是(shi)(shi)鍋(guo)(guo)爐(lu)、壓(ya)(ya)(ya)力(li)(li)容(rong)(rong)(rong)器(qi)的(de)主要受壓(ya)(ya)(ya)元件(jian)其結(jie)構(gou)及形(xing)(xing)(xing)狀設計是(shi)(shi)否合理(li)，影響著(zhu)鍋(guo)(guo)爐(lu)、壓(ya)(ya)(ya)力(li)(li)容(rong)(rong)(rong)器(qi)的(de)平安。所(suo)以有關規(gui)范中對各種封(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)的(de)形(xing)(xing)(xing)狀都有限制。無(wu)(wu)(wu)(wu)折(zhe)邊球(qiu)形(xing)(xing)(xing)沖孔封(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)：無(wu)(wu)(wu)(wu)折(zhe)邊球(qiu)形(xing)(xing)(xing)封(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)與筒體的(de)連接(jie)處存在(zai)明顯的(de)形(xing)(xing)(xing)狀突變。因(yin)此(ci)只應用于直徑(jing)較小、壓(ya)(ya)(ya)力(li)(li)較低的(de)容(rong)(rong)(rong)器(qi)。采(cai)(cai)用無(wu)(wu)(wu)(wu)折(zhe)邊球(qiu)形(xing)(xing)(xing)封(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)時，會產生較大的(de)附(fu)加彎曲應力(li)(li)。封(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)的(de)球(qiu)面內半徑(jing)不應大于筒體內直徑(jing)。球(qiu)形(xing)(xing)(xing)封(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)：鍋(guo)(guo)爐(lu)、壓(ya)(ya)(ya)力(li)(li)容(rong)(rong)(rong)器(qi)的(de)凸形(xing)(xing)(xing)封(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)宜(yi)采(cai)(cai)用球(qiu)形(xing)(xing)(xing)封(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)。其長短軸的(de)比值不得大于2。5選(xuan)用規(gui)范橢球(qiu)形(xing)(xing)(xing)（Ｄnｈn＝４）采(cai)(cai)用非(fei)規(gui)范橢球(qiu)封(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)時。封(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)是(shi)(shi)保證壓(ya)(ya)(ya)力(li)(li)容(rong)(rong)(rong)器(qi)密(mi)閉的(de)重要部件(jian)。封(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)的(de)樣式繁多，有半球(qiu)形(xing)(xing)(xing)封(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)、橢圓形(xing)(xing)(xing)封(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)、多邊形(xing)(xing)(xing)封(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)等。無(wu)(wu)(wu)(wu)錫錐形(xing)(xing)(xing)封(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)制作廠

以(yi)前封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)廠(chang)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)的(de)生產(chan)流(liu)程(cheng)為(wei)：外協加(jia)工(gong)(gong)毛邊封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)廠(chang)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)，切毛邊、加(jia)工(gong)(gong)坡口(kou)、測(ce)量(liang)直邊段外圓(yuan)周長(chang)后(hou)，筒體(ti)下料卷圓(yuan)，封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)廠(chang)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)和(he)筒體(ti)組裝(zhuang)(zhuang)。分(fen)析上(shang)述流(liu)程(cheng)可知(zhi)：一(yi)、封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)廠(chang)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)廠(chang)只提(ti)供端部不(bu)切邊的(de)毛邊封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)廠(chang)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)；二(er)、實測(ce)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)廠(chang)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)外圓(yuan)周長(chang)后(hou)“才(cai)敢”筒體(ti)下料制作，兩者(zhe)不(bu)能(neng)同步(bu)加(jia)工(gong)(gong)，以(yi)保(bao)證封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)廠(chang)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)和(he)筒體(ti)組裝(zhuang)(zhuang)的(de)錯邊量(liang)不(bu)超差。其原因是封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)廠(chang)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)的(de)加(jia)工(gong)(gong)技術(shu)落(luo)后(hou)，成(cheng)形質量(liang)差，不(bu)能(neng)按要求(qiu)保(bao)證封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)廠(chang)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)的(de)尺寸精(jing)度。平板封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)是化(hua)工(gong)(gong)設(she)備常(chang)用的(de)一(yi)種封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)。封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)是石(shi)油化(hua)工(gong)(gong)、原子(zi)能(neng)到食品制藥諸(zhu)多行業壓力容(rong)器設(she)備中不(bu)可缺(que)少的(de)重要部件(jian)。浙江球(qiu)形封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)錐形封(feng)(feng)(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)是容(rong)器的(de)一(yi)部分(fen)，它是通(tong)過(guo)焊接和(he)圓(yuan)柱相連，可以(yi)改變介質在(zai)通(tong)過(guo)時(shi)的(de)速度。

合(he)金(jin)封(feng)頭(tou)(tou)過渡區(qu)是由兩部分即不(bu)(bu)(bu)完(wan)全混合(he)區(qu)和半熔(rong)(rong)化區(qu)組成(cheng)(cheng)。熔(rong)(rong)合(he)區(qu)的(de)(de)(de)(de)特征是具有明顯(xian)的(de)(de)(de)(de)化學(xue)(xue)(xue)成(cheng)(cheng)分不(bu)(bu)(bu)均勻性(xing)，然后引(yin)起安(an)排不(bu)(bu)(bu)均勻性(xing)，而填充(chong)金(jin)屬(shu)和母(mu)材(cai)成(cheng)(cheng)分的(de)(de)(de)(de)不(bu)(bu)(bu)同越大，熔(rong)(rong)合(he)區(qu)的(de)(de)(de)(de)成(cheng)(cheng)分和安(an)排的(de)(de)(de)(de)不(bu)(bu)(bu)均勻性(xing)越明顯(xian)，以(yi)致給(gei)焊(han)接(jie)接(jie)頭(tou)(tou)的(de)(de)(de)(de)力學(xue)(xue)(xue)功能(neng)、耐(nai)腐蝕(shi)功能(neng)帶來嚴重影(ying)響。熔(rong)(rong)合(he)區(qu)常(chang)常(chang)成(cheng)(cheng)為(wei)焊(han)接(jie)接(jie)頭(tou)(tou)較薄弱的(de)(de)(de)(de)環(huan)節，脆(cui)性(xing)斷裂、焊(han)接(jie)裂紋都簡單在(zai)這一部位產生和開展。焊(han)接(jie)接(jie)頭(tou)(tou)的(de)(de)(de)(de)功能(neng)，一般(ban)包括焊(han)縫(feng)、熔(rong)(rong)合(he)區(qu)、熱(re)影(ying)響區(qu)三部分的(de)(de)(de)(de)功能(neng)，在(zai)檢(jian)驗焊(han)接(jie)接(jie)頭(tou)(tou)的(de)(de)(de)(de)力學(xue)(xue)(xue)功能(neng)時常(chang)常(chang)需要單獨(du)測驗焊(han)縫(feng)、熔(rong)(rong)合(he)區(qu)和熱(re)影(ying)響區(qu)的(de)(de)(de)(de)功能(neng)。封(feng)頭(tou)(tou)是石(shi)油化工、原子能(neng)到食品制藥諸多行業壓(ya)力容器(qi)設備(bei)中不(bu)(bu)(bu)可缺少(shao)的(de)(de)(de)(de)重要部件。

不(bu)銹(xiu)(xiu)(xiu)(xiu)鋼封(feng)(feng)頭(tou)在進行制(zhi)作的(de)過程中(zhong)(zhong)其耐(nai)磨(mo)質(zhi)(zhi)料種類繁多(duo)，用(yong)(yong)途(tu)應用(yong)(yong)普(pu)遍(bian)，按操縱機(ji)能(neng)分，可分為微電(dian)子質(zhi)(zhi)料、光電(dian)子質(zhi)(zhi)料、傳感工(gong)(gong)具料、信(xin)息質(zhi)(zhi)料、生(sheng)物醫用(yong)(yong)質(zhi)(zhi)料、生(sheng)態(tai)情形質(zhi)(zhi)料、能(neng)源質(zhi)(zhi)料和機(ji)智(zhi)(智(zhi)能(neng))質(zhi)(zhi)料，不(bu)銹(xiu)(xiu)(xiu)(xiu)鋼封(feng)(feng)頭(tou)耐(nai)空氣(qi)、蒸汽、水等(deng)弱侵(qin)蝕(shi)(shi)(shi)(shi)介質(zhi)(zhi)和酸、堿、鹽等(deng)化(hua)(hua)學浸蝕(shi)(shi)(shi)(shi)性(xing)介質(zhi)(zhi)侵(qin)蝕(shi)(shi)(shi)(shi)的(de)鋼。又稱(cheng)不(bu)銹(xiu)(xiu)(xiu)(xiu)耐(nai)酸鋼。現實應用(yong)(yong)中(zhong)(zhong)，常將耐(nai)弱侵(qin)蝕(shi)(shi)(shi)(shi)介質(zhi)(zhi)侵(qin)蝕(shi)(shi)(shi)(shi)的(de)鋼稱(cheng)為不(bu)銹(xiu)(xiu)(xiu)(xiu)鋼沖壓封(feng)(feng)頭(tou)，而(er)將耐(nai)化(hua)(hua)學介質(zhi)(zhi)侵(qin)蝕(shi)(shi)(shi)(shi)的(de)鋼稱(cheng)為耐(nai)酸鋼。不(bu)銹(xiu)(xiu)(xiu)(xiu)鋼封(feng)(feng)頭(tou)的(de)熱(re)處(chu)理(li)加工(gong)(gong)注意事項熱(re)處(chu)理(li)工(gong)(gong)藝必(bi)須要嚴(yan)格控制(zhi)。封(feng)(feng)頭(tou)是(shi)容器(qi)的(de)一個部件，是(shi)以焊接(jie)方式(shi)連接(jie)筒體。不(bu)銹(xiu)(xiu)(xiu)(xiu)鋼封(feng)(feng)頭(tou)應用(yong)(yong)范圍：石油(you)、電(dian)子、供暖(nuan)、化(hua)(hua)工(gong)(gong)、醫藥(yao)、污水處(chu)理(li)等(deng)等(deng)。

錐(zhui)(zhui)體(ti)大(da)端與圓(yuan)筒連(lian)接(jie)時(shi)(shi)，應按以下(xia)(xia)步(bu)驟(zou)確定連(lian)接(jie)處(chu)(chu)(chu)錐(zhui)(zhui)殼大(da)端的(de)厚(hou)(hou)度(du)：確定錐(zhui)(zhui)殼大(da)端連(lian)接(jie)處(chu)(chu)(chu)的(de)加(jia)(jia)強(qiang)圖(tu)以p/([s]tj)與半(ban)頂角a的(de)值(zhi)，查確定錐(zhui)(zhui)殼大(da)端連(lian)接(jie)處(chu)(chu)(chu)的(de)加(jia)(jia)強(qiang)圖(tu)：當(dang)其交點位(wei)于(yu)曲線之(zhi)上方(fang)時(shi)(shi)，不(bu)必(bi)局部加(jia)(jia)強(qiang);當(dang)其交點位(wei)于(yu)曲線下(xia)(xia)方(fang)時(shi)(shi)，則需(xu)(xu)要局部加(jia)(jia)強(qiang)；無需(xu)(xu)加(jia)(jia)強(qiang)時(shi)(shi)，錐(zhui)(zhui)體(ti)大(da)端壁厚(hou)(hou)按式(4-36)計算(suan)；需(xu)(xu)要增加(jia)(jia)厚(hou)(hou)度(du)予以加(jia)(jia)強(qiang)時(shi)(shi)，則應在錐(zhui)(zhui)殼與圓(yuan)筒之(zhi)間設置加(jia)(jia)強(qiang)段(duan)，錐(zhui)(zhui)殼和圓(yuan)筒加(jia)(jia)強(qiang)段(duan)厚(hou)(hou)度(du)須相同，加(jia)(jia)強(qiang)段(duan)計算(suan)壁厚(hou)(hou)計算(suan)式中Q-應力(li)增值(zhi)系(xi)數，與p/([s]tj)與a值(zhi)有關，由錐(zhui)(zhui)殼大(da)端連(lian)接(jie)處(chu)(chu)(chu)的(de)Q值(zhi)圖(tu)查出(chu)，錐(zhui)(zhui)殼大(da)端連(lian)接(jie)處(chu)(chu)(chu)的(de)Q值(zhi)圖(tu)中間值(zhi)用內插法。加(jia)(jia)強(qiang)區(qu)長(chang)度(du)，錐(zhui)(zhui)殼加(jia)(jia)強(qiang)段(duan)的(de)長(chang)度(du)L1不(bu)應小于(yu);圓(yuan)筒加(jia)(jia)強(qiang)段(duan)的(de)長(chang)度(du)L不(bu)應小于(yu)。封頭(tou)大(da)部分需(xu)(xu)要進行內外表(biao)面拋光(guang)處(chu)(chu)(chu)理。南京脫(tuo)水塔封頭(tou)廠(chang)

封頭的尺寸需要嚴格按照規定標準。無錫錐形(xing)封頭制(zhi)作廠

金(jin)屬消(xiao)耗(hao)量：在(zai)(zai)相(xiang)同(tong)設(she)計(ji)(ji)(ji)前提下，各(ge)種封(feng)(feng)(feng)頭(tou)(tou)的(de)(de)金(jin)屬消(xiao)耗(hao)量按下列順序依次增大：半球形(xing)(xing)，卵形(xing)(xing)，蝶形(xing)(xing)，平(ping)板(ban)形(xing)(xing)，綜上所述，卵形(xing)(xing)封(feng)(feng)(feng)頭(tou)(tou)綜合(he)機能優于(yu)蝶形(xing)(xing)。設(she)備設(she)計(ji)(ji)(ji)時不只(zhi)只(zhi)只(zhi)考慮受力(li)，選用碟形(xing)(xing)封(feng)(feng)(feng)頭(tou)(tou)有(you)(you)時是(shi)由于(yu)整體(ti)結構尺(chi)寸小，好比殺菌(jun)設(she)備等(deng)。講其實(shi)的(de)(de)一般(ban)設(she)備不只(zhi)是(shi)容器本體(ti)，還(huan)有(you)(you)機械(xie)傳動和(he)電器部門，純粹(cui)做容器的(de)(de)企業(ye)是(shi)很難(nan)在(zai)(zai)市場上站(zhan)得住腳(jiao)。設(she)計(ji)(ji)(ji)時還(huan)要結合(he)制造加工工藝(yi)綜合(he)分(fen)(fen)析各(ge)有(you)(you)優缺(que)點(dian)(dian)，詳細(xi)題目詳細(xi)分(fen)(fen)析。前提不苛刻(ke)要求(qiu)不高的(de)(de)話一般(ban)都選擇碟形(xing)(xing)封(feng)(feng)(feng)頭(tou)(tou)。碟形(xing)(xing)封(feng)(feng)(feng)頭(tou)(tou)與尺(chi)度橢圓形(xing)(xing)封(feng)(feng)(feng)頭(tou)(tou)非常近似，受力(li)情況也(ye)很接(jie)(jie)近。在(zai)(zai)應用上沒多大分(fen)(fen)別。碟形(xing)(xing)封(feng)(feng)(feng)頭(tou)(tou)在(zai)(zai)制作上利便點(dian)(dian)。凡(fan)是(shi)與筒體(ti)釆用焊接(jie)(jie)連(lian)接(jie)(jie)而不可拆的(de)(de)都稱(cheng)為封(feng)(feng)(feng)頭(tou)(tou)。無錫錐形(xing)(xing)封(feng)(feng)(feng)頭(tou)(tou)制作廠

無錫國(guo)(guo)鑫(xin)(xin)封(feng)(feng)(feng)(feng)頭制造有(you)限公司正(zheng)式組建于(yu)2003-03-18，將通過提供以封(feng)(feng)(feng)(feng)頭，不銹(xiu)鋼(gang)封(feng)(feng)(feng)(feng)頭，碳(tan)鋼(gang)封(feng)(feng)(feng)(feng)頭，鋁(lv)封(feng)(feng)(feng)(feng)頭等(deng)(deng)服務(wu)于(yu)于(yu)一(yi)體的(de)(de)組合服務(wu)。旗(qi)下國(guo)(guo)鑫(xin)(xin)封(feng)(feng)(feng)(feng)頭在機械及行業(ye)(ye)(ye)(ye)設備行業(ye)(ye)(ye)(ye)擁(yong)有(you)一(yi)定的(de)(de)地位，品牌價值持(chi)續(xu)增長，有(you)望成為(wei)行業(ye)(ye)(ye)(ye)中的(de)(de)佼佼者。同時，企業(ye)(ye)(ye)(ye)針對用(yong)(yong)戶(hu)(hu)，在封(feng)(feng)(feng)(feng)頭，不銹(xiu)鋼(gang)封(feng)(feng)(feng)(feng)頭，碳(tan)鋼(gang)封(feng)(feng)(feng)(feng)頭，鋁(lv)封(feng)(feng)(feng)(feng)頭等(deng)(deng)幾(ji)大領域，提供更(geng)(geng)多、更(geng)(geng)豐富的(de)(de)機械及行業(ye)(ye)(ye)(ye)設備產(chan)品，進一(yi)步為(wei)全(quan)國(guo)(guo)更(geng)(geng)多單(dan)位和企業(ye)(ye)(ye)(ye)提供更(geng)(geng)具針對性的(de)(de)機械及行業(ye)(ye)(ye)(ye)設備服務(wu)。值得(de)一(yi)提的(de)(de)是，國(guo)(guo)鑫(xin)(xin)封(feng)(feng)(feng)(feng)頭致力于(yu)為(wei)用(yong)(yong)戶(hu)(hu)帶去更(geng)(geng)為(wei)定向、專業(ye)(ye)(ye)(ye)的(de)(de)機械及行業(ye)(ye)(ye)(ye)設備一(yi)體化解決方案(an)，在有(you)效降低用(yong)(yong)戶(hu)(hu)成本的(de)(de)同時，更(geng)(geng)能憑借科學的(de)(de)技術讓(rang)用(yong)(yong)戶(hu)(hu)極大限度地挖掘國(guo)(guo)鑫(xin)(xin)封(feng)(feng)(feng)(feng)頭的(de)(de)應用(yong)(yong)潛能。

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