关于广西玉柴机器股份有限公司铸四工段使用
关于广西玉柴机器股份有限公司铸四工段使用
楷模煤粉和宝丰煤粉结果的反馈
铸四工段5月至6月初使用宝丰煤粉,型砂内有效煤粉含量出现异常波动,具体情况如下:
1.第一阶段:5月2日—12日使用宝丰煤粉,平均每辊砂加入29.34Kg,有效煤粉含量5.8%,较正常情况偏低;
2.第二阶段:5月13日—23日使用宝丰煤粉,平均每辊砂加入26.98Kg,有效煤粉含量6.47%。
3.第三阶段:5月24/25日使用楷模煤粉,平均每辊砂加入26Kg,有效煤粉含量6.27%。
4.第四阶段:6月1日—2日白班使用宝丰煤粉,平均每辊砂加入25.7Kg,有效煤粉含量由6.36%降至5.78%,下降了0.28%,由楷模切换宝丰煤粉后,有效煤粉出现急速下滑趋势,十分异常。
5.第五阶段:6月2日中班—6月6日使用楷模煤粉,平均每辊砂加入26.02Kg,有效煤粉含量逐步恢复稳定到6.15%。
详细数据见下表:
017/5/2 8:25 0.1570.1593.08146443550357.0012.445.5229.6宝丰
2017/5/38:400.1580.1562.8214743 37.37.4611.666.2027.9宝丰
18:400.1580.1623.01146423620387.6012.486.10宝丰
2017/5/48:300.1470.1482.81147433220367.2011.916.0927.9宝丰
18:400.1580.1612.93150443460377.4012.15.73宝丰
2017/5/58:300.1560.1552.81146433300367.2011.75.7628.9宝丰
2017/5/68:500.1510.1482.89150433090357.0011.646.0829.9宝丰
18:400.1570.1552.8814244.53290367.2011.45.55宝丰
2017/5/811:500.1550.1532.89144463470367.2011.425.4229.7宝丰
18:400.1620.1582.9213943333036.57.3011.985.44宝丰
2017/5/98:300.1580.1612.952.94143443750367.2011.645.5930宝丰
18:500.1610.1622.92146443620367.2012.16.09宝丰
2017/5/108:200.1590.1582.93143443480367.2011.985.7329.7宝丰
18:300.1540.1562.8514442.5341036.57.3011.615.60宝丰
2017/5/118:200.1620.1642.9314543.53700357.0012.165.6830.3宝丰
18:350.1660.1652.8515643.53350377.4012.045.80宝丰
2017/5/128:200.1580.1572.91144423600367.2012.545.7429.5宝丰
17:450.1610.1672.7914342.5344036.57.3012.186.31宝丰
2017/5/1611:450.1670.172.9415145384035.57.1012.767.5626.9宝丰
18:450.1490.1462.8614643.5 35.67.1211.466.30宝丰
2017/5/178:200.1580.1622.915743.5361035.57.1011.836.1826.7宝丰
18:300.1620.1642.87147463970357.00126.5626.7宝丰
2017/5/188:200.1630.1583.03154464270367.2012.436.9125.7宝丰
18:500.1590.1622.8215543.5398035.37.0611.766.36宝丰
2017/5/198:200.1550.1532.79150463730357.0011.526.3428.2宝丰
18:450.160.1582.8514846388035.67.1211.165.97宝丰
2017/5/2212:050.1630.1652.8215144386035.27.0411.486.4327.9宝丰
18:250.1680.1652.9315543.5388038.57.7012.186.59宝丰
2017/5/238:250.1550.1542.6714542.53570357.0010.66.5526.8宝丰
18:300.1580.162.72148433580377.40 5.92宝丰
2017/5/249:550.1610.1632.78156453790367.2011.496.2526楷模
18:300.1670.1692.7615343377036.57.1211.16.18楷模
2017/5/258:250.1560.1582.7515546395034.56.9010.866.3026楷模
17:200.1630.1612.74160433850367.0211.16.36楷模、宝丰
2017/6/18:200.1570.1552.6815743.5381036.57.1211.36.2325.5宝丰
18:400.1670.1632.7215443.5345035.56.9311.296.36宝丰
2017/6/28:200.1640.1622.7115443.53530367.0211.265.7826宝丰
18:300.1580.1612.79164453790367.0211.536.0726.2楷模
2017/6/38:200.1630.1612.6151423470367.0211.346.1625.8楷模
18:400.1570.1542.7115645371035.56.9311.136.26楷模
2017/6/48:150.1690.1662.815942401037.57.3212.146.3026.3楷模
18:350.1660.1682.86166463690387.4111.616.18楷模
2017/6/58:300.1620.1652.8616344.54010377.22 6.2926.1楷模
18:550.1630.162.82160453230377.4011.895.70楷模
2017/6/68:200.160.1592.88161453720367.2011.816.1925.7楷模
18:450.1550.1562.8116344370037.87.5611.96.15楷模
对照以上数据可以看出,铸四工段在5月使用的该批次宝丰煤粉,加入量偏高但有效煤粉却偏低,在5月24/25日使用楷模煤粉,在6月1—2日切换回宝丰煤粉,在煤粉加入量变化不大的情况下又再次出现有效煤粉急剧下滑趋势,有效煤粉含量下降了0.28%。鉴于以上情况,该批次宝丰煤粉导致型砂内有效煤粉波动异常,易出现批量质量问题,工段申请暂停使用此批次宝丰煤粉。
玉柴铸四工段
2017年6月7日
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