該產品(pin)半球(qiu)形封(feng)頭結構。焊(han)(han)(han)(han)(han)接設備(bei)采用(yong)同(tong)一型號的 NSA-500交流弧焊(han)(han)(han)(han)(han)機2臺，球(qiu)形封(feng)頭，采用(yong)I形坡口(kou)，焊(han)(han)(han)(han)(han)縫對(dui)裝間隙6?8mm，焊(han)(han)(han)(han)(han)絲直(zhi)徑5?6mm，焊(han)(han)(han)(han)(han)前不預熱B瓣片(pian)和1個頂圓焊(han)(han)(han)(han)(han)接均采用(yong)雙(shuang)圖2雙(shuang)面垂直(zhi)面垂直(zhi)鎢極弧焊(han)(han)(han)(han)(han)。焊(han)(han)(han)(han)(han)前焊(han)(han)(han)(han)(han)絲和工焊(han)(han)(han)(han)(han)件坡口(kou)兩側應采取化學或機械方法清除(chu)氧化層和油(you)污。焊(han)(han)(han)(han)(han)接時2把焊(han)(han)(han)(han)(han)炬應嚴(yan)格同(tong)步，焊(han)(han)(han)(han)(han)炬與(yu)工件夾角 為80°?90%焊(han)(han)(han)(han)(han)件的焊(han)(han)(han)(han)(han)接位置(zhi)應盡量垂直(zhi)，傾斜(xie)不得大于5°，工件與(yu)噴嘴(zui)距(ju)離5?8mm。 ? ? ? ? 同(tong)時，我(wo)廠(chang)家(jia)(jia)也是(shi)一家(jia)(jia)生(sheng)產封(feng)頭產品(pin)的生(sheng)產廠(chang)家(jia)(jia)，如果您(nin)有這方面的需要，可通過電話與(yu)我(wo)廠(chang)家(jia)(jia)進行咨詢(xun)和聯系(xi)。

???? 按照(zhao)所劃的切(qie)割(ge)(ge)(ge)線從原(yuan)材料上(shang)切(qie)割(ge)(ge)(ge)下零件毛坯(pi)，該工序稱為切(qie)割(ge)(ge)(ge)，常(chang)用方法有機械切(qie)割(ge)(ge)(ge)(鋸床(chuang)、圓盤剪板機等(deng))，碳鋼(gang)球形(xing)封頭廠家，熱切(qie)割(ge)(ge)(ge)(氧氣切(qie)割(ge)(ge)(ge)、等(deng)離子切(qie)割(ge)(ge)(ge)等(deng))。

邊緣加(jia)(jia)工(gong)(gong)(gong):首(shou)先，按照劃(hua)線(xian)切(qie)(qie)割(ge)余量，消(xiao)除切(qie)(qie)割(ge)時(shi)邊緣可能(neng)產生的加(jia)(jia)工(gong)(gong)(gong)硬化、裂紋、熱影響區及其他(ta)切(qie)(qie)割(ge)缺陷;其次，根據圖(tu)樣規定，加(jia)(jia)工(gong)(gong)(gong)各種(zhong)形式，尺寸的坡口，球形封(feng)頭，通常(chang)加(jia)(jia)工(gong)(gong)(gong)方法有手工(gong)(gong)(gong)加(jia)(jia)工(gong)(gong)(gong)，機械(xie)加(jia)(jia)工(gong)(gong)(gong)，熱切(qie)(qie)割(ge)加(jia)(jia)工(gong)(gong)(gong)。經上述(shu)-系列工(gong)(gong)(gong)序后(hou)，得到一處(chu)理后(hou)的圓形封(feng)頭板坯。

半(ban)球(qiu)封(feng)頭是封(feng)頭的一種，主要是它的外形(xing)(xing)是半(ban)球(qiu)的形(xing)(xing)狀，因此得名。半(ban)球(qiu)封(feng)頭主要用(yong)(yong)于壓力容(rong)器上作為堵(du)塞(sai)裝置使用(yong)(yong)。