Optimal Design Of Conformal Cooling Channels With Brone Pipe Buried Cast For Inject Mould

Plastic industry is a developing industry newly in China.Mould designers depend their intuition 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.The cooling process of injection molding is a complicated process relating to thermodynamics and hydrodynamics,and it has a direct impact on quality and productivity of injection molded part.With increasing requirements of high quality of injection molded part,the research on design of conformal cooling channels of injection mould gradually becomes a popular subject.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 sy stem is designed by using VC++6.0.The mould temperature field can be simulated by the cooling analysis system.Using MPI software for plastic parts for cooling of the simulation,cooling time and temperature fields,comparison and analysis of traditional waterways and shape of the waterway plastic mould temperature field and temperature field.Change in different parameters,and cooling conditions,the cooling effect of the conformal cooling pipes.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 afecting the cooling capacity was analysized.According to the results of the research,in the same cooling conditions, the shape of the cooling time than traditional cooling less of the temperature distribution and more uniform,compared with shape,cooling can improve the quality of plastic parts and cooling efficiency.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.