Moldflow冷却分析结果解释.ppt

Cooling Result Interpretation,Introduction to,Key and Secondary Results,Key results are the most important results to review when doing a cooling analysis in most cases. Secondary results are used to support the findings of the key results or to help understand a problem better. Many times, secondary results are not reviewed.,Key Results,Several results are key results to pay attention to Mold Surface Temperature (Plastic/Metal Interface) Temperature (top), part Temperature (bottom), part (midplane only) Definition, Cycle averaged temperature Temperature Difference, part Shows the difference in temperature between the top and bottom temperatures (midplane only),Temperature (Top), Part,Parts rotated so the inside and bottom can be seen on Fusion Models,Temperature (Top), Part,Layers used to define inside, bottom plus others. Results are scaled automatically to visible layers only.,Temperature Difference, Part,Midplane results only Defined by Top minus Bottom temperature (refers to mesh orientation),Key Results,Temperature Profile, part Shows temperature profile through the plastic at the end of the contact time Used to show the temperature difference between cavity and core on fusion models Screen Output file Summarizes the inputs and outputs from the analysis Gives an overall idea of the quality of the analysis,Temperature Profile,Useful for Fusion models to look at the difference across the thickness like temperature difference does for midplane models. Note: Edge elements without matched element will not have temperature profile results.,In a Fusion model a normalized thickness of 1 is the element picked, and 1 is the matched element,Results Summary,Portion of Results Summary file. Provides useful summary of analysis including any warnings or errors,Secondary Results: Circuit,Secondary Results: Circuit,Circuit Pressure Pressure drop of the coolant in the circuit Circuit Coolant Temperature Shows temperature rise/fall of coolant in circuit Should be less than 3C. Circuit Metal Temperature Water metal interface temperature Should be within 5C. of the water temperature Higher temperatures would indicate not enough flow rate to extract heat from the tool efficiently,Secondary Results: Circuit,Circuit Flow Rate Flow rate of the coolant in a circuit Useful if Reynolds number was set as the input A parallel circuit was used Circuit Reynolds number Shows the amount of turbulence of the coolant Water turbulent at a Reynolds number of about 4,000 Target Reynolds number 10,000,Secondary Results: Circuit,Flow Rate and Reynolds Number results,Secondary Results: Plastic Part,Time to Freeze, part Estimated time for the element to freeze based on the mold surface temperatures Maximum Temperature, part Maximum temperature in the part cross section at the end of the contact time Maximum Temperature Position, part Location in the cross section of the maximum temperature,Secondary Results: Plastic Part,Average Temperature, part Average temperature in the part cross section at the end of the contact time Runner Results Runners have all the same results as the part,Secondary Results: Plastic Part,Freeze Time, Temperature, and Position results,Secondary Results: Insert,Insert and parting plane temperatures Top Bottom Difference Mold boundary External boundary temperature,Secondary Results: Insert,Top temperature The mold side of the mold/insert interface, and the insert side of the insert/plastic interface. Bottom temperature The insert side of the mold/insert interface. Temperature difference The resistance of heat transfer across the mold/insert interface. The lower the number, the better.,Secondary Results: Insert,Top and bottom temperatures, temp. difference,Secondary Results: Parting Plane & Mold,Exercise,Analy