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Surface processing method of compact spinning negative pressure tube

A surface treatment and negative pressure tube technology, applied in the field of metal surface treatment, can solve the problems of increased use cost, yarn hairiness clogging, downtime, etc., to achieve the effect of extending service life, reducing wear and reducing use cost

Inactive Publication Date: 2013-04-03
YUEYANG DONGFANG AUTOMATIC CONTROL ENG EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor bonding force between the chromium coating and aluminum and aluminum alloys, the chromium coating will fall off, resulting in a decrease in the performance of the compact spinning negative pressure tube in eliminating static electricity.
As a result, the yarn hairiness is blocked in the grid ring, resulting in waste yarn, shutdown, and even replacement of the compact spinning negative pressure tube, which increases the user's use cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In step (1), the anionic surfactant is mixed with the carbon nanotubes to form a mixture. The mass ratio of anionic surfactant to carbon nanotube in step (1) is 1:1. In this embodiment, the surfactant is sodium dodecylbenzenesulfonate, and the average length of the carbon nanotubes is 5 nm.

[0027] Step (2), adding deionized water to the mixture to form a bath, and mixing evenly. In this embodiment, the concentration of carbon nanotubes in the bath solution is 5 g / L.

[0028] Use a dispersing homogenizer (not shown) at a speed of 5000 rpm / min to stir the bath solution for 60 minutes, or use an ultrasonic device to vibrate the bath solution at a frequency of 14KHz~40KHz for 3 hours. The purpose of uniformly mixing the bath solution is to further break the long-chain structure of carbon nanotubes and make them into shorter-chain carbon nanotubes, which is conducive to fully filling the carbon nanotubes to cover the surface of the compact spinning negative pressure tube...

Embodiment 2

[0034] In step (1), the anionic surfactant is mixed with the carbon nanotubes to form a mixture. The mass ratio of anionic surfactant to carbon nanotube in step (1) is 2:1. In this embodiment, the surfactant is sodium dodecylbenzenesulfonate, and the average length of carbon nanotubes is 12 nm.

[0035] Step (2), adding deionized water to the mixture to form a bath, and mixing evenly. In this embodiment, the concentration of carbon nanotubes in the bath solution is 3 g / L.

[0036] Use a dispersing homogenizer (not shown) at a speed of 5000 rpm / min to uniformly mix the bath solution for 50 minutes, or use an ultrasonic device to vibrate the bath solution at a frequency of 14KHz~40KHz for 3.5 hours. The purpose of uniform mixing of the bath solution is to further break the long-chain structure of carbon nanotubes and make them into shorter-chain carbon nanotubes, so that the carbon nanotubes can be fully filled to the surface of the compact spinning negative pressure tube. In...

Embodiment 3

[0042] In step (1), the anionic surfactant is mixed with the carbon nanotubes to form a mixture. The mass ratio of anionic surfactant to carbon nanotubes in step (1) is 3:1. In this embodiment, the surfactant is sodium dodecylbenzenesulfonate, and the average length of the carbon nanotubes is 20 nm.

[0043] Step (2), adding deionized water to the mixture to form a bath, and mixing evenly. In this embodiment, the concentration of carbon nanotubes in the bath solution is 1 g / L.

[0044]Use a dispersing homogenizer (not shown) at a speed of 5000 rpm / min to uniformly mix the bath solution for 30 minutes, or use an ultrasonic device to vibrate the bath solution at a frequency of 14KHz~40KHz for 2 hours. The purpose of uniform mixing of the bath solution is to further break the long-chain structure of carbon nanotubes and make them into shorter-chain carbon nanotubes, so that the carbon nanotubes can be fully filled to the surface of the compact spinning negative pressure tube. ...

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PUM

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Abstract

The invention provides a surface processing method of a compact spinning negative pressure tube. According to the method, molybdenum and / or molybdenum alloy are / is used as the forming base material(s) of the compact spinning negative pressure tube. The surface processing method comprises the following steps: (1) mixing an anionic surfactant with a carbon nanotube to form a mixture; (2) adding deionized water into the mixture to form bath solution and evenly mixing; (3) putting the compact spinning negative pressure tube serving as an anode and a lead plate serving as a cathode in the bath solution, wherein the surface of the compact spinning negative pressure tube is provided with a layer of anode oxidation film; and (4) loading an electric field to the bath solution, wherein the initial voltage of the electric field is 1-3V, the maximum current density is 0.15A / dm<2>, and the voltage boosting rate is 2.5-4.5V / min; gradually boosting the voltage to 40-70V and keeping constant voltage for 30-60min. The carbon nanotube is introduced in the process of sealing holes of the compact spinning negative pressure tube with the anode oxidation film, so that the surface of the compact spinning negative pressure tube has static resistance performance, the service life of the compact spinning negative pressure tube is prolonged, the usage cost can be lowered, and the wear of lattice aprons to the surface of the compact spinning negative pressure tube can be decreased.

Description

technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to a surface treatment method for a compact spinning negative pressure tube. Background technique [0002] The compact spinning negative pressure tube is a special-shaped tube with a hollow cavity, and its material is basically aluminum and / or aluminum alloy. There are multiple airflow suction slots on the tube wall on one side of the compact spinning negative pressure tube, and multiple mesh rings are respectively set on each airflow suction slot, and the two ends are negative pressure suction ports. The tuyeres act on each airflow suction groove, so that the yarn fits the grid circle and moves, and the hairiness is self-twisted when passing through the grid circle, and the hairiness is wound on the yarn, thereby greatly reducing the hairiness on the surface of the yarn. Make the surface of the yarn clear and smooth, increase the strength of the yarn. [0003] ...

Claims

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Application Information

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IPC IPC(8): C25D11/20C25D15/00C25D7/04
Inventor 鲍安良
Owner YUEYANG DONGFANG AUTOMATIC CONTROL ENG EQUIP