<懷化>福偉達管業有限公司創建于2008年10月，廠家位于經濟繁華的經濟技術開發區，地理位置優越，交通十分便捷。廠家經過幾年來的艱苦創業與誠信經營，現擁有一套完善的生產懷化管理體系與健全的銷售網絡。

對(dui)于(yu)不銹(xiu)鋼(gang)管(guan)的(de)熱(re)(re)(re)(re)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)入(ru)(ru)，Young-Pyo Kim等人[38]對(dui)不同壁厚(hou)的(de)X65管(guan)進行(xing)了(le)電(dian)(dian)(dian)極電(dian)(dian)(dian)弧(hu)焊(han)(han)和(he)鎢弧(hu)焊(han)(han)試(shi)驗。研(yan)究表明:8mm厚(hou)鋼(gang)管(guan)電(dian)(dian)(dian)極電(dian)(dian)(dian)弧(hu)焊(han)(han)的(de)熱(re)(re)(re)(re)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)入(ru)(ru)范(fan)圍為11.0kJ/cm~21.8kJ/cm10mm厚(hou)不銹(xiu)鋼(gang)鋼(gang)管(guan)的(de)熱(re)(re)(re)(re)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)入(ru)(ru)范(fan)圍為18.0kJ/cm~29.5kJ/cm。8mm厚(hou)管(guan)的(de)熱(re)(re)(re)(re)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)入(ru)(ru)為22.2kJ/cm~41.7kJ/cm10mm厚(hou)不銹(xiu)鋼(gang)管(guan)的(de)熱(re)(re)(re)(re)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)入(ru)(ru)為19.5kJ/cm~47.6kJ/cm。國內(nei)Zhang Dehmatsu[39]對(dui)厚(hou)度(du)(du)為10mm的(de)X65管(guan)線(xian)鋼(gang)進行(xing)了(le)自動埋弧(hu)焊(han)(han)對(dui)焊(han)(han)接，研(yan)究了(le)熱(re)(re)(re)(re)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)入(ru)(ru)對(dui)金屬組織(zhi)和(he)性能(neng)的(de)影響。他發現當熱(re)(re)(re)(re)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)入(ru)(ru)達到(dao)2022J/mm時，管(guan)線(xian)鋼(gang)的(de)低(di)溫沖擊吸收能(neng)達到(dao) 。對(dui)于(yu)熱(re)(re)(re)(re)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)入(ru)(ru)的(de)計算公式(shi)，Carl E.Jaske研(yan)究得出(chu)了(le)60/1000Hvis的(de)熱(re)(re)(re)(re)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)入(ru)(ru)計算公式(shi)(其中:H——熱(re)(re)(re)(re)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)入(ru)(ru)，kJ/mm;V——電(dian)(dian)(dian)壓(ya)，V;I-電(dian)(dian)(dian)流，A;S——焊(han)(han)接速(su)度(du)(du)，mm/min)。國內(nei)，曹崇珍(zhen)等[41]將其總結為/IHKVAS=(其中:Ih——熱(re)(re)(re)(re)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)入(ru)(ru)，J/mm;K-系數，對(dui)焊(han)(han)K=0.85，角焊(han)(han)K=0.57;V——焊(han)(han)接電(dian)(dian)(dian)壓(ya)，取(qu)平均值(zhi)(zhi)，V;A——焊(han)(han)接電(dian)(dian)(dian)流，取(qu)平均值(zhi)(zhi)，A;S——焊(han)(han)接速(su)度(du)(du)，取(qu)平均值(zhi)(zhi)，mm/S)。可以(yi)看出(chu)，國內(nei)外的(de)熱(re)(re)(re)(re)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)入(ru)(ru)計算公式(shi)存在差異。可采(cai)用常(chang)規設備(安培鉗、電(dian)(dian)(dian)壓(ya)表、秒表等)或(huo)專用電(dian)(dian)(dian)弧(hu)監測(ce)設備，實(shi)現對(dui)熱(re)(re)(re)(re)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)入(ru)(ru)電(dian)(dian)(dian)平的(de)測(ce)量(liang)。熱(re)(re)(re)(re)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)入(ru)(ru)水平也可以(yi)通過消耗比(bi)(一(yi)段時間內(nei)沉積的(de)長度(du)(du)與(yu)電(dian)(dian)(dian)極消耗的(de)長度(du)(du)之比(bi))方案來(lai)控制。無論選擇何種方法來(lai)控制熱(re)(re)(re)(re)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)入(ru)(ru)，焊(han)(han)機在操作(zuo)前都應該使用試(shi)板進行(xing)電(dian)(dian)(dian)極沉積試(shi)驗，以(yi)確(que)保熱(re)(re)(re)(re)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)入(ru)(ru)是合理(li)的(de)。熱(re)(re)(re)(re)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)入(ru)(ru)的(de)指標是焊(han)(han)接線(xian)能(neng)量(liang)。隨著(zhu)線(xian)能(neng)的(de)增(zeng)(zeng)加(jia)(jia)，熱(re)(re)(re)(re)影響區(qu) 硬度(du)(du)降低(di)，可降低(di)產生硬化組織(zhi)的(de)傾向，更(geng)有利(li)于(yu)防(fang)止氫致開(kai)裂。然而，線(xian)能(neng)量(liang)的(de)增(zeng)(zeng)加(jia)(jia)會導(dao)致焊(han)(han)透的(de)增(zeng)(zeng)加(jia)(jia)，而焊(han)(han)透有可能(neng)導(dao)致焊(han)(han)透。因此，需要平衡焊(han)(han)接熱(re)(re)(re)(re)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)入(ru)(ru)，在不燒(shao)透不銹(xiu)鋼(gang)管(guan)的(de)情況下，提高(gao)焊(han)(han)接熱(re)(re)(re)(re)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)入(ru)(ru)。