CAJ | 학술논문

为解决摩托车铝合金缸体压铸件存在的缺陷问题，利用AnyCasting铸造数值模拟分析软件，采用正交试验方法，并借助ImageJ软件统计铸件的孔洞面积（缩孔缩松或气孔），系统研究了压铸工艺参数：快压射速度、快压射切换点位置及模具温度对摩托车铝合金缸体孔洞面积的影响规律．研究表明，铸件内的孔洞总面积随着快压射速度的增加而增加，随着快压射切换点位置和模具预热温度的增加而减小．本实验条件下的最优工艺参数为：快压射速度2．0 m／s、快压射切换位置280 mm、模具温度240℃．采用该组参数，使铸件致密度增大，上、下端面孔洞所占面积分别减少21％和68％，铸件废品率从14％降低到5％．
위해결마탁차려합금항체압주건존재적결함문제，이용AnyCasting주조수치모의분석연건，채용정교시험방법，병차조ImageJ연건통계주건적공동면적（축공축송혹기공），계통연구료압주공예삼수：쾌압사속도、쾌압사절환점위치급모구온도대마탁차려합금항체공동면적적영향규률．연구표명，주건내적공동총면적수착쾌압사속도적증가이증가，수착쾌압사절환점위치화모구예열온도적증가이감소．본실험조건하적최우공예삼수위：쾌압사속도2．0 m／s、쾌압사절환위치280 mm、모구온도240℃．채용해조삼수，사주건치밀도증대，상、하단면공동소점면적분별감소21％화68％，주건폐품솔종14％강저도5％．
In order to solve the defects problem of aluminum alloy cylinder body casting for motorcycle, the effects of fast shot velocity, fast shot set point and mold temperature on the porosity area ( shrinkage cavity, shrinkage porosity and air hole ) of aluminum alloy cylinder body casting for motorcycle were systematically investigated using orthogonal experiment method and theoretical simulation in which AnyCasting numerical simulation software and ImageJ statistics software were exploited. The results indicate that the total porosity area of the casing increases with the increasing of the fast shot velocity,while decreases with the rising of fast shot set point and mold temperature. The optimal parameters are: fast shot velocity-2. 0 m/s, fast shot set point-280 mm and mold temperature-240℃. Using this set of the optimal parameters, the casting density was increased , the percentages of porosity area on the top surface and bottom surface of the casting were decreased about 21% and 68% ,respectively, and the casting scrap rate was reduced from 14% to 5%.