The Research On The Stability Of Plastic Profile Extrusion Die

At present,with the drastic competition of the native plastic profile market,the production of plastic profile has formed mass production's peculiarity,which put forward the higher request for plastic profile extrusion die.The manufacture technology of native die has been greatly improved,but it can't satisfy the require of high speed and stability which come from the plastic profie's mass production.The price of import extrusion die is several times than that of native die,but the use of extrusion die's situation is that the import die's users become more while the native die's useres are less especially in the leading native plastic profile factories.Aimed at the issue,we associated with the Guofeng Plastic to declare and finish the key item of scientific committee of Hefei,which is the research on the new and high efficient plastic profile extrusion die.The research of the thesis is the problem of the plastic profile die's stability,which is based on the scientific research.The conclusion of the difference of native and overseas'plastic profile extrusion die is that the die's stability through comparison and study the status of native and overseas' plastic profile extrusion die.Just because the fluctuation of the technics' parameters are not avoidable in the production of the plastic profile.To satisfy the require of the stability of extrusion die,we should have a wide technic range to adapt these unavoidable technic fluctuation.In this paper, I put forward the concept of extrusion die's stability,and I summarize the measurement of the plastic profile extrusion die's stability. In order to select the measurement reasonably and execute the measurement exactly, we should do more research work on the rheology's rule of the plastic melt in the mould and the cooling distortion rule of plastic profile in the shape mould and water tank. I has researched the cooling distortion rule.The research emphasis is to analyze the cooling rule of the plastic profile in the shape mould and water tank using the FEM software ANSYS,and to gain some results which have practical reference value.