铸造
鑄造
주조
FOUNDRY
2010年
1期
55-59
,共5页
高锰铝青铜%离心铸造%多元线性回归%成分优选
高錳鋁青銅%離心鑄造%多元線性迴歸%成分優選
고맹려청동%리심주조%다원선성회귀%성분우선
high manganese aluminum bronze%centrifugal casting%multiple linear regression%component optimization
离心铸造条件下要使含镍高锰铝青铜同时满足σ_b≥735MPa、δ_5≥18%是一个很高的要求.基于大量生产数据,对离心铸造条件下高锰铝青铜采用MATLAB进行多元线性回归建模,确立了σ_b、σ_s、δ_5、HB分别与Al、Mn、Fe、Ni之间的多元线性回归方程,并对方程进行检验,确认其有效性.再对50组真值采用分层逐次逼近法加以筛选和对由回归方程得到的2 916组预测值进行大范围筛选,经对比分析并结合大量实践经验,给出了同时满足σ_b≥735 MPa、δ_5≥18%合金专用配比的推荐范围及优选范围,并对元素间的匹配关系、杂质含量以及浇注温度的控制进行了讨论.
離心鑄造條件下要使含鎳高錳鋁青銅同時滿足σ_b≥735MPa、δ_5≥18%是一箇很高的要求.基于大量生產數據,對離心鑄造條件下高錳鋁青銅採用MATLAB進行多元線性迴歸建模,確立瞭σ_b、σ_s、δ_5、HB分彆與Al、Mn、Fe、Ni之間的多元線性迴歸方程,併對方程進行檢驗,確認其有效性.再對50組真值採用分層逐次逼近法加以篩選和對由迴歸方程得到的2 916組預測值進行大範圍篩選,經對比分析併結閤大量實踐經驗,給齣瞭同時滿足σ_b≥735 MPa、δ_5≥18%閤金專用配比的推薦範圍及優選範圍,併對元素間的匹配關繫、雜質含量以及澆註溫度的控製進行瞭討論.
리심주조조건하요사함얼고맹려청동동시만족σ_b≥735MPa、δ_5≥18%시일개흔고적요구.기우대량생산수거,대리심주조조건하고맹려청동채용MATLAB진행다원선성회귀건모,학립료σ_b、σ_s、δ_5、HB분별여Al、Mn、Fe、Ni지간적다원선성회귀방정,병대방정진행검험,학인기유효성.재대50조진치채용분층축차핍근법가이사선화대유회귀방정득도적2 916조예측치진행대범위사선,경대비분석병결합대량실천경험,급출료동시만족σ_b≥735 MPa、δ_5≥18%합금전용배비적추천범위급우선범위,병대원소간적필배관계、잡질함량이급요주온도적공제진행료토론.
In centrifugal casting, to produce the high manganese aluminum bronze containing nickel meets σ_b≥735 MPa, δ_5≥18% is very difficult. Based on many practical data, model of multiple linear regression by MATLAB in centrifugal casting are built up, and the multiple linear regression equations of σ_b, σ_5, δ_5, HB correspond to Al, Mn, Fe, Ni, respectively are established and the validity of the equations are verified and confirmed. By adopting approaching method, through compare and analysis for the 50 groups of true value and the 2 916 groups predicted value from linear regression equation, and combine with plenty of practical experience, the preferred scope of proportioning of alloying elements, which can meet requirement σ_b≥735 MPa, δ_5≥18% is given. At the same time, problems such as the matching relations between elements, impurity content, and control of pouring temperature are also presented.
