中zhong間jian包bao是shi煉lian鋼gang連lian鑄zhu的de重zhong要yao高gao溫wen設she備bei
，華hua龍long耐nai材cai公gong司si承cheng擔dan著zhe煉lian鋼gang連lian鑄zhu用yong中zhong間jian包bao業ye務wu。多duo年nian來lai中zhong間jian包bao包bao蓋gai鋼gang板ban暴bao露lu在zai外wai，中zhong包bao衝chong擊ji區qu溫wen度du較jiao高gao，蓋gai板ban的de鋼gang板ban受shou高gao溫wen影ying響xiang容rong易yi變bian形xing融rong化hua，造zao成cheng包bao蓋gai料liao脫tuo落luo，蓋gai板ban平ping均jun壽shou命ming三san至zhi四si次ci，修xiu複fu頻pin繁fan

，工gong人ren勞lao動dong強qiang度du大da，鋼gang板ban及ji包bao蓋gai料liao消xiao耗hao高gao
，尤you其qi是shi目mu前qian快kuai節jie奏zou的de生sheng產chan形xing勢shi下xia，中zhong包bao蓋gai板ban成cheng了le製zhi約yue中zhong間jian包bao壽shou命ming的de瓶ping頸jing問wen題ti。

　　針zhen對dui中zhong間jian包bao包bao蓋gai存cun在zai的de問wen題ti，該gai單dan位wei總zong工gong程cheng師shi帶dai領ling生sheng產chan工gong藝yi和he設she備bei管guan理li人ren員yuan經jing過guo多duo次ci現xian場chang勘kan察cha論lun證zheng
，對dui標biao國guo內nei先xian進jin經jing驗yan，結jie合he前qian期qi實shi驗yan室shi兩liang個ge月yue的de現xian場chang實shi驗yan情qing況kuang，最zui終zhong決jue定ding在zai原yuan圖tu紙zhi基ji礎chu上shang，將jiang包bao蓋gai兩liang端duan用yong鋼gang板ban作zuo頂ding板ban結jie構gou

，中zhong間jian蓋gai板ban采cai用yong無wu頂ding板ban設she計ji，將jiang中zhong間jian拉la筋jin變bian窄zhai，蓋gai板ban邊bian框kuang均jun采cai用yong厚hou鋼gang板ban製zhi作zuo，並bing在zai中zhong間jian拉la筋jin及ji邊bian框kuang四si周zhou均jun加jia焊hanVxingmaoguding，maoguweizhijiangeyizhi
，quebaoshoulijunyun，zaibaozhengnaicailaogudetongshiduigangbanjinxingbaohu，tongshi
，duishengchangongyijinxingshidangtiaozheng，zaijiaozhuliaopeifangzhongzengjiakangqinshihekangboluocailiao，tishenggaibandezhengtijiegoujibaogailiaodejiehexingneng。

　　此ci項xiang改gai造zao目mu前qian已yi在zai煉lian鋼gang新xin區qu連lian鑄zhu中zhong間jian包bao試shi用yong一yi個ge多duo月yue
，中zhong間jian蓋gai板ban可ke連lian續xu使shi用yong八ba次ci以yi上shang，兩liang端duan蓋gai板ban可ke連lian續xu使shi用yong十shi次ci以yi上shang，中zhong包bao包bao蓋gai使shi用yong壽shou命ming提ti高gao了le兩liang倍bei多duo，年nian可ke節jie約yue費fei用yong10餘萬元。   （黃俊文   王寧波）