【正文】 ................... 49 爐外精煉 ........................................................................................................ 49 爐外精煉特點 ......................................................................................... 49 爐外精煉的功能 ..................................................................................... 49 不銹鋼爐外精煉方法 ............................................................................. 50 盛鋼桶（鋼包）計算 .................................................................................... 51 盛鋼桶各部分尺寸計算 ......................................................................... 51 盛鋼桶質(zhì)量 ............................................................................................. 53 盛鋼桶重心計算 ..................................................................................... 54 鋼包 （盛鋼桶）需要量 ......................................................................... 57 起重機的設(shè)計 ................................................................................................ 58 7 模鑄設(shè)計及相關(guān)計算 ............................................................................................ 62 鋼錠模設(shè)計參數(shù) ............................................................................................ 62 鋼錠重量及尺寸的確定 ................................................................................ 62 冒口及保溫帽尺寸的確定 ............................................................................ 64 8 車間工藝布置方案與廠房主要尺寸的計算 ........................................................ 67 電弧爐車間工藝布置 .................................................................................... 67 電弧爐車間各部分工藝布置 ........................................................................ 69 變壓器跨 ................................................................................................. 69 原料跨加爐子跨 ..................................................................................... 69 9 車間主要經(jīng)濟技術(shù)指標 ........................................................................................ 76 產(chǎn)量指標 ........................................................................................................ 76 目錄 V 車間生產(chǎn)能力 ......................................................................................... 76 小時產(chǎn)鋼量 ............................................................................................. 76 質(zhì)量指標 ........................................................................................................ 76 鋼錠合格率 ............................................................................................. 76 鋼錠收得率 ............................................................................................. 76 合金比和高合金比 ................................................................................. 77 作業(yè)率指標 .................................................................................................... 77 作業(yè)率 ..................................................................................................... 77 日歷利用系數(shù) ......................................................................................... 77 材料消耗指標 ................................................................................................ 77 工序能耗 ........................................................................................................ 78 10 制定主煉鋼種的操作規(guī)程 .................................................................................. 79 原材料 .......................................................................................................... 79 鋼鐵原料 ............................................................................................... 79 合金材料 ............................................................................................... 79 補爐材料 ............................................................................................... 79 造渣材料 ............................................................................................... 80 氧化材料 ............................................................................................... 80 脫氧材料 ............................................................................................... 80 氧化法 .......................................................................................................... 81 配料守則 ............................................................................................... 81 開爐直接裝料煉鋼 ............................................................................... 81 冶煉注意事項 ....................................................................................... 82 扒補爐材料 ........................................................................................... 82 裝料 ....................................................................................................... 82 軸承鋼冶煉澆注規(guī)程 .................................................................................. 83 冶煉特點 ............................................................................................... 83 工藝特點 ............................................................................................... 83 11 擬定生產(chǎn)組織及安全生產(chǎn)制度 ............................................................................ 84 生產(chǎn)組織安排 .............................................................................................. 84 原料部分 ............................................................................................... 84 冶煉部分 ............................................................................................... 84 模鑄及精整部分 ................................................................................... 84 安全制 度的制定 .......................................................................................... 85 實行承包責任制 ................................................................................... 85 安全規(guī)程的制定 ...............