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xhzyyangyang
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Chinese: The results show that: melt in the slip of the residence time and materials and the ratio of relaxation time than extrudate swell between exponential decay, the mathematical equation can be used between B = Ae-t / r (A ¡Ö 0.2 to 0.8) , and its essence is to melt in a slip deformation of the decay process. Theoretical analysis and numerical simulation with a high degree of consistency, the equation can be used to guide design of gas-assisted die. |
2Â¥2008-02-19 13:54:44
knightstar
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| According to the research ,the residence time of melt in its slipping section has a relation of exponential decay with its relaxation time ratio and extrusion swell ratio.Its mathematical relation can be expressed by this equation B=Ae-t/r£¨A¡Ö0.2~0.8£©.In fact ,melt in the slipping section is in the process of deformation decay.Theoretical analysis and numerical simulation match well,so the equation can be used as a guidence in the design of gas-assisted dies |

3Â¥2008-02-19 14:39:03
knightstar
ÖÁ×ðľ³æ (ÖøÃûдÊÖ)
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4Â¥2008-02-19 14:39:34











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