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《Journal of Shanghai Jiaotong University》 1991-01
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Computer Simulation of Cooling System for Injection Molding

Hong Shenzhang Yang Diansheng  
At present,the design of cooling system for injection molds is pri-marily based on the designers' experience.Since the cooling process invo-lves the longest time in the overall injection molding cycles,and especiallywhen the heat flow from the mold is not balanced,differential shrinkagecan occur,resulting in residual stress and/or warping of the moulded parts.Therefore the analysis of the thermal behaviour of the mold is important sothat a rational design of the cooling system can be achieved.This paperuses the steady state and unsteady state mathematical models in thermal con-duction with the convevtive heat transfer boundary conditions at the cooln-ing channel.This computer program wich is based on the finite elementmethod has been developed for analyzing the thermal behaviour of the in-jection mold.The program makes use of the quardratic isoparamentric ele-ment and automatically numbers the elements to show the predicted isothermsresult of the cross-section of the model.Accordingly,it can optimize thelocation of the cooling lines in the mold to select the most effective coolanttemperature and accurately predict the minimum cooling time,etc.Thus im-provements can be obtained in(1)accelerating the rate of heat transfer,and(2)balancing heat transfer throughout the mold.
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 Jia Yi (Tianjin Institute of Light Industry);ELIMINATING THE WELD LINE TO IMPROVE THE QUALITY OF THE INJECTION MOULDING PARTS[J];Engineering Plastics Application;1990-02
2 Xiong Yi (Wuhan Radio Factory No.2);DESIGN OF THE FOUR-WAY PULLED CORE MOULD FOR PLASTICS PARTS OF LARGE BOXES AND COVERS[J];Engineering Plastics Application;1991-02
3 Du Jikuan (WeiDong Chemical Plaat, Taiyuan);DESIGN OF MULTI—DIRECTIONAL SIDE—EXTRACTING CORE MOLD——DESIGN OF BJ122 JEEP LEFT AIR DOOR COVER MOLD[J];Engineering Plastics Application;1991-04
4 Jia Yi (Tianjin Institute of Light Industry);RATIONALLY DESIGNING THE MOLD COOLING SYSTEM[J];Engineering Plastics Application;1991-04
5 Zhang Kehui (Northwestern Polytechnical university);MODIFICATION OF FORULAE ON CALCULATION OF MOULDING DIMENSION OF INJECTION MOULD ACCORDING TO AVERAGE SHRINKAGE[J];Engineering Plastics Application;1994-03
6 Zhang Kehui (Northwestern Polytechnical University ,Xi'an);TOLERANCE BAND METHOD FOR CALCULATION OF MOLDING DIMENSIONS OF INJECTION MOLD[J];Engineering Plastics Application;1994-04
7 Liu Feng,Li Lijuan (Qingdao Institute of Chemical Technology 266042);DESIGN OF DIES FOR THE PLASTIC PROFILE EXTRUSION[J];Engineering Plastics Application;1996-05
8 Li Shu,Chuai Chengzhi (Tianjin Institute of Light Industry 300222);DESIGN FABRICATION AND USE OF PLASTICS JOINTING PART[J];Engineering Plastics Application;1997-05
9 Dong Xiangzhong Kong Xing(Sichuan Union University,Chengdu 610065) (Qingdao Haier Research Institute of General Freezer Company 266034);DESIGN OF LARGE INJECTION MOLD FOR AUDI CAR HEAD-BUMPER[J];Engineering Plastics Application;1997-06
10 Xie Kongjiao, Xu Yingjun, Xue Jianfeng Ren Fusheng(Jinan Plastics Product Works 250001) (Hebi Automobile Electric Appliances Works 458000);RESEARCH AND APPLICATION OF THE PROTECTING JACKET FOR THE AUTOMOBILE CONNECTOR[J];Engineering Plastics Application;1998-09
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