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Dip coating treatment method for chemical fiber ropes

A treatment method and rope technology, applied in the direction of pretreatment surface, device for coating liquid on the surface, coating, etc., can solve the problems of large influence of weather factors, poor solution permeability, long curing time, etc., and achieve remarkable drawing effect , Improve the effect and efficiency, improve the effect of drying efficiency and effect

Inactive Publication Date: 2015-03-25
TAIAN ROPE NET PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are four main problems in the dipping treatment of chemical fiber ropes: the structure of chemical fiber ropes is relatively tight, and the permeability of the solution is poor; some chemical fibers such as ultra-high molecular weight polyethylene fibers are not suitable for drying at high temperatures; some colloids cure slowly It is difficult to handle. Although the current mainstream water-based coating agents are more environmentally friendly than solvent-based coating agents, they have a long curing time; drying in a natural state is greatly affected by weather factors.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The dipping solution is mixed and diluted with water-based polyurethane and water at a weight ratio of 1:1. During the dipping process of the rope, an ultrasonic device is added to the bath to ultrasonically treat the rope in the bath. The purpose is to make the glue more uniform and sufficient. Dip into the rope. The impregnation process adopts a combination of turbo mechanical stirring and ultrasonic dispersion, the turbine speed is 30 rpm, continuous stirring; the ultrasonic frequency is 30000HZ, intermittent start, the time interval is 10s. Then, the rope is extruded through a grinding port less than 1mm in diameter of the rope to squeeze out excess rubber. Then enter the pre-drying method, using the microwave drying method, the microwave frequency is 2450MHZ±25MHZ, because the microwave does not directly heat the rope, but prefers to directly evaporate the moisture of the coating, and then infrared drying, irradiated by infrared lamps, the temperature is 55 ±5°C, ...

Embodiment 2

[0022] The dipping solution is mixed and diluted with water-based polyurethane and water at a weight ratio of 1:5. The dipping process uses a combination of turbo mechanical stirring and ultrasonic dispersion. The turbine speed is 40 rpm, continuous stirring; the ultrasonic frequency is 25000HZ, intermittent start , the time interval is 20s. Then, the rope is extruded through a grinding port less than 1mm in diameter of the rope to squeeze out excess rubber. Then enter the pre-drying method, using microwave drying method, the microwave frequency is 2450MHZ±25MHZ, then infrared drying, irradiated by infrared lamps, the temperature is 55±5°C, and then enter the drawing unit 1, after passing through the drawing unit 1 , enter the hot air oven, and carry out hot air circulation drying. The oven is equipped with three temperature-adjustable heating zones, and each zone is set with the best heating temperature and residence time. The maximum temperature range is 75±5°C. After the ro...

Embodiment 3

[0024] The dipping solution is mixed and diluted with water-based polyurethane and water at a weight ratio of 1:10. The dipping process adopts a combination of turbo mechanical stirring and ultrasonic dispersion. The turbine speed is 100 rpm, continuous stirring; the ultrasonic frequency is 20000HZ, intermittent start , the time interval is 50s. Then, the rope is extruded through a grinding port less than 1mm in diameter of the rope to squeeze out excess rubber. Then enter the pre-drying method, using microwave drying method, the microwave frequency is 2450MHZ±25MHZ, then infrared drying, irradiated by infrared lamps, the temperature is 55±5°C, and then enter the drawing unit 1, after passing through the drawing unit 1 , enter the hot air oven, and carry out hot air circulation drying. The oven is equipped with three temperature-adjustable heating zones, and each zone is set with the best heating temperature and residence time. The maximum temperature range is 75±5°C. After th...

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Abstract

The invention discloses a dip coating treatment method for chemical fiber ropes. A traditional dip coating treatment process is modified, and the method comprises the three links of dip coating, drying and drafting. In the dip coating process, the mode that turbine machine continuous stirring and ultrasonic wave intermittent dispersion are combined is adopted, and ultrasonic waves improve the permeability of a solution. In the drying process, the three modes of microwave pre-drying, infrared pre-drying and hot air pre-drying are comprehensively utilized to improve the drying efficiency and the effect. The drying and curing process is quickly achieved under a low temperature, the process is simple, and energy is saved. In the drafting process, two five-roller drafting units are arranged between an infrared drying oven and a hot air drying oven and between the hot air drying oven and a winding machine respectively, and the drafting effect is obvious. The dip coating treatment method effectively improves the effect and the efficiency of rope surface treatment, improves the breaking strength, the hardness and the like of the ropes and increases the functions of electric insulation, corrosion resistance and the like of the ropes.

Description

technical field [0001] The invention relates to a surface treatment method for ropes, in particular to a glue-dipping treatment method for chemical fiber ropes. Background technique [0002] At present, there are four main problems in the dipping treatment of chemical fiber ropes: the structure of chemical fiber ropes is relatively tight, and the permeability of the solution is poor; some chemical fibers such as ultra-high molecular weight polyethylene fibers are not suitable for drying at high temperatures; some colloids cure slowly It is difficult to handle. Although the current mainstream water-based coating agents are more environmentally friendly than solvent-based coating agents, they have a long curing time; drying in a natural state is greatly affected by weather factors. Contents of the invention [0003] In order to solve the above-mentioned existing technical problems, the present invention provides a dipping treatment method for chemical fiber ropes, including ...

Claims

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Application Information

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IPC IPC(8): B05D1/18B05D3/02B05D3/06B05D3/04D02J1/22
Inventor 沈明尹延征宋其晶刘俊谦陈岩巩亮宋炳涛徐利云
Owner TAIAN ROPE NET PLASTIC
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