压铸脱模剂喷涂工艺影响模具的温度场及其温度梯度有限元分析

(),,,,,,;;;;TG249.2;O242A2008(s)-0511-05FEAanalysisoftemperatureandtemperaturegradientofdiewhendiereleasingagentsprayedindifferenttechnologiesHuXinping(SchoolofMechanicalEngineering,ShandongInstituteofLightIndustry)Abstract:WaterbasedreleasingagentisnecessaryinAl2alloyandZn2alloydiecasting.Thediereleasingagentsprayingtechnologieshaveimportanteffectsondiecastingqualityanddielife.Onthebasisofthedescriptionofdiereleasingagentsprayingprocess,thetemperatureandtemperaturegradientofdiesur2facewereanalyzedbymeansofFEAmethod.Theanalysisresultsshowedthatthediesurfacetempera2turedecreasedzigzaginpulsesprayingwithlowertemperaturegradient.Thesewouldbebeneficialfordielifeprolonging.Keywords:DieReleasingAgent,SprayingTechnology,Temperaturedistribution,TemperatureGradi2ent,FEA:2008204214:(200703073:,,1969,,,,(250353),:13954153832,E-mail:[e-mail],[13],[4,5][6],,,,,[7,8],,,,,,,,,,,,,,,,,,,,,,6500kN,2s,5s,1.5s,1.5s,3s,1s014015MPa,,,,,,;,,,100200mm,250mm,1152008,,70mm,pH[9,10],,,,,(Lei2denfrostPoint)[11],,,,,,,,,,,,,,,,6s6s,,,,2003,,,,,[12],,,,,,,1,,Q-W=U+KE+PE(1),Q;W;U;KE;PE,:c9T9t+{V}T{L}+{L}T{q}=Ûq(2),;c;T;t;q;Ûq;{L}=99X99Y99Z;{V}=VVxVVyVVzFourier,,{q}=-[D]{L}T(3),[D]=Kx000Ky000Kz,,KxKyKzXYZ(2)(3)(1),,9c9T9t+Vx9T9X+Vy9T9Y+Vz9T9Z=q+99XKx9T9X+99YKy9T9Y+99ZKz9T9Z(4)3,2DPLANE55FLUID141PLANE55,4,,,2,,,,16500kN,2152008116500kN/kN6500()/mm750750(-)/mm350850/mm600()/kg9/cm21625600mm,,600mm600mm,,,ANSYSFLUID141,,200mm100mm100mmCPUPentium4(R)218G,1G,,2D100,6040,,14392,14111,450,5045025050,25ANSYSAIR2SI,11,,220100200mm,,33,,,,200,100mm,160,200mm,100,,,,;,,,333.1,4tp,totp,t’pt’o3154t’p-t’o-t’c-(=t’p+t’o)tp-to-tc-(tp=+to)3.2,,[13]5675015110115210s5,,,,,,,,(015210s),566015110115210s6,,5,10mm,,,,,,,,,727-7,13.3mm,3.3110s0.5s110s8BCD110s110s015s110s015s110s8110s0.5s110s9110s015s110s,()4152008,0.5s,,,,110s015s110s9,BCD8110s015s110s10,10110s0.5s110s3.4-111.5s0.5s1112320.5s0.5s(1.5s),0.5s,12210s110s0.5s110s0.5s0.5s0.5s0.5s0.5s0.5s0.5s-4,,,,,,,,[1].[J].,2007(B07):73.[2].[J].,2007(5):47.[3],,.[J].,2008(2):53256.[4]. ƒ‹™¨[M].(),1994.[5],.[M].:,1993.[6].[J].,2000(6):75276.[7]EDWARDH.Diespray,diecostanddielife[J].DieCastingEn2gineer,2003(1):34236.[8]TIMC.Adhesionproblems:Whoisatfault;diecastersorfinish2ers[J].DieCastingEngineer,2003(11):44248.[9],,.[J].,1995(6):30232.[10]LIUGW,MORSIYS,CLAYTONBR.Characterisationofthespraycoolingheattransferinvolvedinahighpressurediecastingprocess[J].Int.J.Therm.Sci.,2000,39:5822591.[11],,,.[J].,2000(S):32235.[12],,.2[J].,2005,25(3):1582159.[13].[D].,,:2008.(:)515