Spinning process and die head of chinlon 66 monofilament of high-strength and high-precision industry

A spinning process and high-precision technology, which is applied in the spinning process and die head field of high-strength and high-precision industrial nylon 66 monofilament, can solve the problems of high shrinkage in boiling water, increased cost, low yield, etc. Good roundness, improved production efficiency, and low boiling water shrinkage

Inactive Publication Date: 2016-08-31
WUXI DINUO WEIYE TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

At present, there are several domestic enterprises in small-scale production, but the quality cannot meet the needs of customers. The main problems are: high production cost, low yield, and product performance: low strength, poor roundness of wire diameter (sometimes Slub yarn), high shrinkage in boiling water, etc. These problems restrict the quality of downstream screen printing and mesh ring production, forcing downstream companies to import at high prices from Switzerland, the United States and other countries, wasting foreign exchange and increasing costs

Method used

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  • Spinning process and die head of chinlon 66 monofilament of high-strength and high-precision industry

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Embodiment 1

[0030] Embodiment 1: a kind of spinning process of nylon 66 monofilament for high-strength and high-precision industry, comprises the following steps:

[0031] (1) Drying Remove moisture from the raw material nylon 66 particles, dry at 85°C for 6 hours, and make the moisture requirement reach 600ppm;

[0032] (2) Heating and melting The dried nylon 66 particles enter the screw extruder for heating and melting, and the heating temperature is 295°C; at the same time, the extrusion pressure of the extruder is controlled at 87kg / cm2;

[0033] (3) Metering The melt extruded by the extruder enters the metering pump, and the output volume is measured by adjusting the speed of the metering pump according to the diameter of the finished product;

[0034] (4) Spinning heated molten melt is extruded by the metering pump and added to the die, passes through the distribution plate and the filter layer, enters the diversion cavity of the deflector, and spins through the spinneret, and the i...

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Abstract

The invention discloses a spinning process and a die head of a chinlon 66 monofilament of high-strength and high-precision industry. The method comprises the following steps: drying; heating to smelt; measuring; spinning; cooling; stretching; sizing; oiling; coiling; inspecting; packing for selling, wherein a flow guide plate of the die head is of an arc-shaped structure. A spinning yarn processed by the spinning process is high in diameter and roundness, high in strength, low in boiling water shrinkage, free of slub filament yarns, and high in production efficiency.

Description

technical field [0001] The invention belongs to a high-strength and high-precision industrial nylon 66 monofilament spinning process and a die head. Background technique [0002] High-strength and high-precision nylon 66 monofilament is mainly used for screen printing and precision spinning antistatic mesh circle. At present, there are several domestic enterprises in small-scale production, but the quality cannot meet the needs of customers. The main problems are: high production cost, low yield, and product performance: low strength, poor roundness of wire diameter (sometimes Slub yarn), high shrinkage in boiling water, etc. These problems restrict the quality of downstream screen printing and mesh ring production, forcing downstream companies to import at high prices from Switzerland, the United States and other countries, wasting foreign exchange and increasing costs. Contents of the invention [0003] In order to solve the above-mentioned technical problems existing i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D13/00D01D1/06
CPCD01D13/00D01D1/06
Inventor 周伟良糜虹海
Owner WUXI DINUO WEIYE TECH CO LTD
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