L: length of the Nozzle. J: is size diameter plastic flow in the nozzle line. D: is the size of the diameter of the nozzle. XC: is the distance between 2 nozzles. ΔL: is the value of heat expansion Nozzle (mm). q: is the gap nozzle (mm).LD is the Nozzle length (mm) LF is the length of the Nozzle at expansion (mm) α is the coefficient of thermal expansion of materials (1/° C) TR is the temperature (° C) plastic Division TF is the temperature (° C)
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