热加工工艺
熱加工工藝
열가공공예
HOT WORKING TECHNOLOGY
2010年
3期
75-77
,共3页
气缩孔%砂芯%冷铁
氣縮孔%砂芯%冷鐵
기축공%사심%랭철
shrinkage blowhole%sand core%densener
对M3000蠕铁气缸盖气缩孔的成因进行了分析,并采取了加强型芯排气,严格控制浇注工艺;稳定过程控制,保证蠕化效果;加快热节部位冷却速度等工艺措施,使缸盖气缩孔缺陷基本消除,废品率由最高时的20%下降到1%以下.
對M3000蠕鐵氣缸蓋氣縮孔的成因進行瞭分析,併採取瞭加彊型芯排氣,嚴格控製澆註工藝;穩定過程控製,保證蠕化效果;加快熱節部位冷卻速度等工藝措施,使缸蓋氣縮孔缺陷基本消除,廢品率由最高時的20%下降到1%以下.
대M3000연철기항개기축공적성인진행료분석,병채취료가강형심배기,엄격공제요주공예;은정과정공제,보증연화효과;가쾌열절부위냉각속도등공예조시,사항개기축공결함기본소제,폐품솔유최고시적20%하강도1%이하.
The formation cause of M3000 vermicular cast iron cylinder head was analysed,and the measures of strengthening core exhaust,controlling pouring technology,guaranteeing effect of vermicular cast iron,quickening cooling velocity of hot spot,etc,were taken,the shrinkage blowhole defect of the cylinder head Was eliminated.The waste product rate comes down from 20% to 1%.
