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0375-3250666關(guān)于廣西玉柴機器股份有限公司鑄四工段使用
關(guān)于廣西玉柴機器股份有限公司鑄四工段使用
楷模煤粉和寶豐煤粉結果的反饋
鑄四工段5月至6月初使用寶豐煤粉,型砂內有效煤粉含量出現異常波動(dòng),具體情況如下:
1.第一階段:5月2日—12日使用寶豐煤粉,平均每輥砂加入29.34Kg,有效煤粉含量5.8%,較正常情況偏低;
2.第二階段:5月13日—23日使用寶豐煤粉,平均每輥砂加入26.98Kg,有效煤粉含量6.47%。
3.第三階段:5月24/25日使用楷模煤粉,平均每輥砂加入26Kg,有效煤粉含量6.27%。
4.第四階段:6月1日—2日白班使用寶豐煤粉,平均每輥砂加入25.7Kg,有效煤粉含量由6.36%降至5.78%,下降了0.28%,由楷模切換寶豐煤粉后,有效煤粉出現急速下滑趨勢,十分異常。
5.第五階段:6月2日中班—6月6日使用楷模煤粉,平均每輥砂加入26.02Kg,有效煤粉含量逐步恢復穩定到6.15%。
詳細數據見(jiàn)下表:
017/5/2 8:25 0.1570.1593.08146443550357.0012.445.5229.6寶豐
2017/5/38:400.1580.1562.8214743 37.37.4611.666.2027.9寶豐
18:400.1580.1623.01146423620387.6012.486.10寶豐
2017/5/48:300.1470.1482.81147433220367.2011.916.0927.9寶豐
18:400.1580.1612.93150443460377.4012.15.73寶豐
2017/5/58:300.1560.1552.81146433300367.2011.75.7628.9寶豐
2017/5/68:500.1510.1482.89150433090357.0011.646.0829.9寶豐
18:400.1570.1552.8814244.53290367.2011.45.55寶豐
2017/5/811:500.1550.1532.89144463470367.2011.425.4229.7寶豐
18:400.1620.1582.9213943333036.57.3011.985.44寶豐
2017/5/98:300.1580.1612.952.94143443750367.2011.645.5930寶豐
18:500.1610.1622.92146443620367.2012.16.09寶豐
2017/5/108:200.1590.1582.93143443480367.2011.985.7329.7寶豐
18:300.1540.1562.8514442.5341036.57.3011.615.60寶豐
2017/5/118:200.1620.1642.9314543.53700357.0012.165.6830.3寶豐
18:350.1660.1652.8515643.53350377.4012.045.80寶豐
2017/5/128:200.1580.1572.91144423600367.2012.545.7429.5寶豐
17:450.1610.1672.7914342.5344036.57.3012.186.31寶豐
2017/5/1611:450.1670.172.9415145384035.57.1012.767.5626.9寶豐
18:450.1490.1462.8614643.5 35.67.1211.466.30寶豐
2017/5/178:200.1580.1622.915743.5361035.57.1011.836.1826.7寶豐
18:300.1620.1642.87147463970357.00126.5626.7寶豐
2017/5/188:200.1630.1583.03154464270367.2012.436.9125.7寶豐
18:500.1590.1622.8215543.5398035.37.0611.766.36寶豐
2017/5/198:200.1550.1532.79150463730357.0011.526.3428.2寶豐
18:450.160.1582.8514846388035.67.1211.165.97寶豐
2017/5/2212:050.1630.1652.8215144386035.27.0411.486.4327.9寶豐
18:250.1680.1652.9315543.5388038.57.7012.186.59寶豐
2017/5/238:250.1550.1542.6714542.53570357.0010.66.5526.8寶豐
18:300.1580.162.72148433580377.40 5.92寶豐
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、寶豐
2017/6/18:200.1570.1552.6815743.5381036.57.1211.36.2325.5寶豐
18:400.1670.1632.7215443.5345035.56.9311.296.36寶豐
2017/6/28:200.1640.1622.7115443.53530367.0211.265.7826寶豐
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
對照以上數據可以看出,鑄四工段在5月使用的該批次寶豐煤粉,加入量偏高但有效煤粉卻偏低,在5月24/25日使用楷模煤粉,在6月1—2日切換回寶豐煤粉,在煤粉加入量變化不大的情況下又再次出現有效煤粉急劇下滑趨勢,有效煤粉含量下降了0.28%。鑒于以上情況,該批次寶豐煤粉導致型砂內有效煤粉波動(dòng)異常,易出現批量質(zhì)量問(wèn)題,工段申請暫停使用此批次寶豐煤粉。
玉柴鑄四工段
2017年6月7日
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