Production method of polyester industrial yarn for marine cables
A technology of polyester industrial yarn and production method, which is applied in the textile field, can solve the problems of easy aging and short service life, and achieve the effects of high oil film strength, excellent heat resistance, and reduced tensile stress
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Embodiment 1
[0020] A production method of polyester industrial yarn for marine cables according to the present invention, which includes extrusion melting, metering, slow cooling, side blowing cooling, first oiling, five pairs of rollers stretching and setting, second oiling, winding forming;
[0021] The extrusion melting: using high-viscosity slices with a viscosity of 1.05, heating and extrusion melting through six screw zones, the heating temperature of each zone of the screw is 312°C in the first zone, 308°C in the second zone, 302°C in the third zone, and 294°C in the fourth zone. The fifth zone is 293°C, the sixth zone is 292°C, the temperature is lowered zone by zone, and then heated;
[0022] The metering: use a 30cc / rpm metering pump to control the outlet melt temperature to 300°C;
[0023] The slow cooling: the metering pump sends the melt quantitatively to each spinning assembly, sprays it out through the spinneret holes, and then heats and cools slowly at a temperature of 31...
Embodiment 2
[0030] A production method of polyester industrial yarn for marine cables according to the present invention, which includes extrusion melting, metering, slow cooling, side blowing cooling, first oiling, five pairs of rollers stretching and setting, second oiling, winding forming;
[0031] The extrusion melting: using high-viscosity chips with a viscosity of 1.05, heating and extrusion melting through six screw zones, the heating temperature of each zone of the screw is 310°C in the first zone, 305°C in the second zone, 300°C in the third zone, and 293°C in the fourth zone. The fifth zone is 292°C, the sixth zone is 291°C, the temperature is lowered zone by zone, and then heated;
[0032] The metering: use a 30cc / rpm metering pump to control the outlet melt temperature to 295°C;
[0033] The slow cooling: the metering pump sends the melt quantitatively to each spinning assembly, sprays it out through the spinneret holes, and then heats and cools slowly at a temperature of 302...
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Abstract
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