球形(xing)封(feng)頭(tou)多(duo)使用(yong)與(yu)鍋爐方面(mian)。有時因(yin)為不同的原(yuan)因(yin)會(hui)出(chu)現(xian)(xian)一些故障，如變形(xing)、劃傷(shang)、減薄率、麻點、橘皮、鼓包等現(xian)(xian)象，那(nei)么出(chu)現(xian)(xian)的原(yuan)因(yin)是(shi)什么又應該如何解決呢？

(1)變形(xing)：這類情況出現(xian)在沖壓或(huo)冷熱不均勻等造(zao)成(cheng)的現(xian)象。可以(yi)對變形(xing)處加(jia)熱調(diao)弄型狀然(ran)后用水進行冷卻，有時旋壓也能起到一定的效果。

(2)劃傷：這多出現(xian)(xian)與平時在運輸移(yi)動的(de)(de)時候不注意，出現(xian)(xian)了(le)磕碰的(de)(de)問題造成的(de)(de)。運輸時進行(xing)一些保(bao)護(hu)處理，搬運過程幅度不要(yao)過大(da)。劃傷不大(da)的(de)(de)情(qing)況下(xia)可以通(tong)過打磨(mo)進行(xing)修復，積超過25%要(yao)對(dui)整個(ge)球形封頭(tou)進行(xing)處理了(le)

(3)鼓包(bao)：球形(xing)封頭(tou)出現(xian)鼓包(bao)可能是壓(ya)(ya)邊模的壓(ya)(ya)力不夠(gou)，不能很(hen)好(hao)的壓(ya)(ya)勞(lao)。材質方面也有可能，比如(ru)厚度不一樣等情(qing)況。出現(xian)這種(zhong)現(xian)象可以使(shi)用的鼓包(bao)修(xiu)理機，進行鼓包(bao)修(xiu)復。

?半(ban)球封(feng)(feng)頭是由(you)一塊園形(xing)坯(pi)料(liao)(liao)，經(jing)圧(ya)(ya)(ya)制而成其(qi)為半(ban)球形(xing)。以其(qi)形(xing)狀區別于橢園封(feng)(feng)頭與碟形(xing)平(ping)板(ban)封(feng)(feng)頭 ? ? 半(ban)球封(feng)(feng)頭在圧(ya)(ya)(ya)力成型時，其(qi)坯(pi)料(liao)(liao)中間(jian)部份(fen)的材料(liao)(liao)會(hui)被拉伸，而邊(bian)緣部份(fen)則(ze)被圧(ya)(ya)(ya)縮，這樣(yang)要有(you)一個平(ping)穏(wen)的變(bian)形(xing)過程(cheng)，加熱坯(pi)料(liao)(liao)就會(hui)使這一過程(cheng)變(bian)得平(ping)穩(wen)，采(cai)用“油(you)圧(ya)(ya)(ya)”或(huo)“水圧(ya)(ya)(ya)”這樣(yang)比較慢的加圧(ya)(ya)(ya)方式會(hui)使其(qi)變(bian)形(xing)過程(cheng)更(geng)加平(ping)穩(wen)。 ? ?而“沖圧(ya)(ya)(ya)”過程(cheng)大(da)快了(le)，球形(xing)封(feng)(feng)頭生(sheng)產廠家，除了(le)板(ban)厚適中的小型半(ban)球封(feng)(feng)頭還有(you)個別用沖圧(ya)(ya)(ya)工藝(yi)外(wai)，其(qi)余全部是坯(pi)料(liao)(liao)加熱后采(cai)用油(you)圧(ya)(ya)(ya)或(huo)水圧(ya)(ya)(ya)成型工藝(yi)。

球(qiu)型(xing)封(feng)頭形(xing)狀與受力(li)情況存在什么(me)關系？。球(qiu)型(xing)封(feng)頭常用(yong)于(yu)壓力(li)容(rong)器上，是(shi)目(mu)前常用(yong)的堵塞裝置之一(yi)，在實際工(gong)作(zuo)中(zhong)，由于(yu)使用(yong)的環境不一(yi)樣，所(suo)以封(feng)頭被制作(zuo)成(cheng)不同(tong)的形(xing)狀。很多(duo)人會好奇，不同(tong)形(xing)狀的封(feng)頭在工(gong)作(zuo)中(zhong)所(suo)受到的力(li)是(shi)一(yi)樣的嗎？球(qiu)型(xing)封(feng)頭廠家來(lai)向你做簡(jian)單(dan)介紹。

?我們(men)從封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)受(shou)(shou)(shou)力(li)(li)(li)情況來看：球(qiu)(qiu)形(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)的(de)(de)(de)(de)(de)(de)(de)兩向應力(li)(li)(li)是(shi)一樣的(de)(de)(de)(de)(de)(de)(de)，而且(qie)在相同(tong)的(de)(de)(de)(de)(de)(de)(de)P和D條(tiao)件(jian)下，球(qiu)(qiu)形(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)上(shang)的(de)(de)(de)(de)(de)(de)(de)應力(li)(li)(li)僅為(wei)筒體上(shang)的(de)(de)(de)(de)(de)(de)(de)周向應力(li)(li)(li)的(de)(de)(de)(de)(de)(de)(de)一半(ban)(ban)(ban)；橢圓(yuan)形(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)經線(xian)曲率變化平滑連(lian)續，故應力(li)(li)(li)分(fen)布比較(jiao)(jiao)(jiao)(jiao)均勻，對于(yu)標準(zhun)橢圓(yuan)形(xing)(xing)(xing)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)，在相同(tong)的(de)(de)(de)(de)(de)(de)(de)P和D條(tiao)件(jian)下，封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)較(jiao)(jiao)(jiao)(jiao)大(da)的(de)(de)(de)(de)(de)(de)(de)薄膜應力(li)(li)(li)數值上(shang)與圓(yuan)筒中的(de)(de)(de)(de)(de)(de)(de)周向應力(li)(li)(li)相等(deng)。因(yin)此(ci)橢圓(yuan)形(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)的(de)(de)(de)(de)(de)(de)(de)受(shou)(shou)(shou)力(li)(li)(li)狀況僅次于(yu)半(ban)(ban)(ban)球(qiu)(qiu)形(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)，而比其它(ta)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)好。封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)的(de)(de)(de)(de)(de)(de)(de)結構(gou)形(xing)(xing)(xing)式(shi)由承(cheng)載能(neng)力(li)(li)(li)、工藝過程及制(zhi)造技術等(deng)方(fang)面要求決定。半(ban)(ban)(ban)球(qiu)(qiu)型(xing)(xing)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)為(wei)受(shou)(shou)(shou)力(li)(li)(li)較(jiao)(jiao)(jiao)(jiao)理(li)想的(de)(de)(de)(de)(de)(de)(de)結構(gou)形(xing)(xing)(xing)式(shi)，但(dan)(dan)因(yin)為(wei)半(ban)(ban)(ban)球(qiu)(qiu)型(xing)(xing)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)深(shen)度(du)(du)(du)達，當(dang)直徑(jing)小時，整體沖(chong)壓困難(nan)，球(qiu)(qiu)形(xing)(xing)(xing)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)，而直徑(jing)大(da)時，采(cai)用(yong)(yong)分(fen)瓣沖(chong)壓的(de)(de)(de)(de)(de)(de)(de)工藝，碳鋼球(qiu)(qiu)形(xing)(xing)(xing)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)，拼(pin)焊工作(zuo)量(liang)也(ye)較(jiao)(jiao)(jiao)(jiao)大(da)。錐形(xing)(xing)(xing)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)受(shou)(shou)(shou)力(li)(li)(li)利于(yu)流體均勻布排(pai)料使用(yong)(yong)，較(jiao)(jiao)(jiao)(jiao)球(qiu)(qiu)形(xing)(xing)(xing)封(feng)(feng)(feng)(feng)(feng)受(shou)(shou)(shou)力(li)(li)(li)情況壓力(li)(li)(li)容器較(jiao)(jiao)(jiao)(jiao)少，球(qiu)(qiu)形(xing)(xing)(xing)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)廠，采(cai)用(yong)(yong)采(cai)用(yong)(yong)橢圓(yuan)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)呢(ni)，其主要原(yuan)因(yin)是(shi)半(ban)(ban)(ban)球(qiu)(qiu)型(xing)(xing)封(feng)(feng)(feng)(feng)(feng)制(zhi)造工藝復雜(za)難(nan)度(du)(du)(du)較(jiao)(jiao)(jiao)(jiao)所(suo)造價(jia)比橢圓(yuan)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)高。碟形(xing)(xing)(xing)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)由于(yu)存(cun)在過渡段，降低了(le)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)的(de)(de)(de)(de)(de)(de)(de)深(shen)度(du)(du)(du)，便于(yu)成型(xing)(xing)加(jia)工，但(dan)(dan)是(shi)由于(yu)蝶形(xing)(xing)(xing)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)時三種(zhong)形(xing)(xing)(xing)式(shi)的(de)(de)(de)(de)(de)(de)(de)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)中受(shou)(shou)(shou)力(li)(li)(li)狀態較(jiao)(jiao)(jiao)(jiao)不好的(de)(de)(de)(de)(de)(de)(de)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)形(xing)(xing)(xing)式(shi)。橢圓(yuan)形(xing)(xing)(xing)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)則洗去(qu)了(le)半(ban)(ban)(ban)球(qiu)(qiu)型(xing)(xing)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)受(shou)(shou)(shou)力(li)(li)(li)好和蝶形(xing)(xing)(xing)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)深(shen)度(du)(du)(du)淺的(de)(de)(de)(de)(de)(de)(de)優點，因(yin)此(ci)橢圓(yuan)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)結構(gou)特性介于(yu)半(ban)(ban)(ban)球(qiu)(qiu)型(xing)(xing)和蝶形(xing)(xing)(xing)封(feng)(feng)(feng)(feng)(feng)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)之間，

還有(you)一(yi)種是球冠形(xing)封頭(tou)，屬于凸形(xing)封頭(tou)。它在球面與圓筒連(lian)接處的曲率半徑發生(sheng)突變，產生(sheng)的不連(lian)續應力相當大，因此球冠形(xing)封頭(tou)一(yi)般只用(yong)于壓(ya)力不高的場合。

由此可見，由于使用(yong)的地方不一樣，所(suo)受的力不同，因(yin)此，在工作(zuo)中，要根據工作(zuo)需要選(xuan)擇(ze)合適(shi)的封(feng)(feng)頭(tou)進行(xing)工作(zuo)。選(xuan)購封(feng)(feng)頭(tou)，新鄉(xiang)封(feng)(feng)頭(tou)廠家是你明智的選(xuan)擇(ze)，選(xuan)擇(ze)我(wo)廠的封(feng)(feng)頭(tou)。歡迎社會(hui)各(ge)界(jie)朋友到(dao)新鄉(xiang)封(feng)(feng)頭(tou)廠家參觀洽談合作(zuo)。光(guang)大機械新鄉(xiang)球(qiu)型封(feng)(feng)頭(tou)廠家愿和國內外(wai)同仁開(kai)發出更多、更好、更新的產品獻給客戶(hu)，共創(chuang)美好未來(lai)！