The Numerical Simulation For Steady Temperature Fields In Cavity Die Of Injection Mould In Cooling Processing

Plastic industry is a developing industry newly in China.Mould designers depend their intution and experience on mould design. Mould is always debug and corrected again and again before it can be used to produce products. Not only the mould design cycle is lengthening and the mould cost is high,but also the quality of the product can not be guaranteed.Taking advantage of the CAE technology and doing the experiment on the computer,mould design can be implement successfully in one trail. Injecting mould CAE technology includes several aspects of content. This paper establishes the analytical model of cooling process by means of basic theory of heat transportation and computer numerical simulation technology. A practical cooling numerical simulational system is designed by using VC++6.0. The mould temperature field can be simulated by the cooling analysis system. Through it,the hose dislocation and the hose diameter are arranged correctly. Therefore, it can enhance the efficency of design. Meanwhile,by using it,some process factors affecting the cooling capacity was analysized.According to the results of the research,when other factors is unchanged,cooling time and temperature difference are larger if injecting temperature or distance from mould wall is raised; cooling time is larger and temperature difference become smaller if cooling water temperature or plastic thick become thinner; cooling time is smaller and temperature difference become larger if open_temperature,or cool water speed ,or hose diameter is raised; cooling time and temperature difference gradually become smaller before they reach a certain value and they become larger if hose distance is raised at all times.