Anticorrosive method of hydraulic operating system oil tank and pipeline internal wall

A working system and fuel tank technology, applied in anti-corrosion coatings, devices for coating liquids on surfaces, coatings, etc., can solve the problems of reduced cleanliness, control failure, electrophoretic paint on fuel tanks and pipelines, etc., to improve cleanliness. degree of effect

Inactive Publication Date: 2005-10-12
辛金龙 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the phosphating process can only be used for a short period of time, and can only be used for temporary rust prevention in a dry climate, such an anti-corrosion method is not only limited by conditions, but also the anti-corrosion effect cannot be effective for a long time; using electrophoresis technology for anti-corrosion treatment, Due to the shielding of the electric field, the fuel tank and pipeline cannot be coated with electrophoretic paint, so the electrophoretic process technology has limitations.
Therefore, the inner wall of the oil tank and pipeline of the prior art cannot remove rust and oil stains, so that the inner wall is rusted in a short period of time, causing metal impurities to fall off, causing the entire hydraulic system to reduce cleanliness and block the hydraulic valve body, resulting in control failure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Pre-treat the inner wall of the oil tank and pipeline of the hydraulic working system, go through rust removal process, oil removal process, and phosphating process; then prepare anti-corrosion coatings, mix 180g of slurry ester with 100g of curing agent, and the resulting mixed liquid is anti-corrosion coatings , pour the anti-corrosion paint into the fuel tank and pipeline, seal the fuel tank and pipeline, then roll on the rolling machine for 6 minutes, and at the same time vibrate on the vibration machine with a frequency of 150 Hz; finally heat cure at 100°C for 3 hours.

Embodiment 2

[0015] Pre-treat the inner wall of the oil tank and pipeline of the hydraulic working system, go through rust removal process, oil removal process, and phosphating process; then prepare anti-corrosion coatings, mix 220g of slurry ester with 100g of curing agent, and the resulting mixed liquid is anti-corrosion coatings , pour the anti-corrosion paint into the fuel tank and pipeline, seal the fuel tank and pipeline, then roll it on a rolling machine for 8 minutes, and at the same time vibrate on a vibration machine with a frequency of 100 Hz; finally dry it naturally at room temperature for 24 hours.

Embodiment 3

[0017] The oil tank of the hydraulic working system and the inner wall of the pipeline are pre-treated, and the rust removal process, the oil removal process, and the phosphating process are carried out; then the anti-corrosion coating is prepared, and 50 g of unsaturated resin is mixed with 100 g of unsaturated curing agent, and the mixed liquid is For anti-corrosion paint, pour the anti-corrosion paint into the fuel tank and pipeline, seal the fuel tank and pipeline, then roll it on a rolling machine for 4 minutes, and at the same time vibrate on a vibration machine with a frequency of 80 Hz; finally dry it naturally at room temperature for 24 hours.

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PUM

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Abstract

A simple and effective method for anti-corrosion of hydraulic oil box and inner wall of pipe line comprises rust removing, oil removing and phosphorization. Inject into oil box and pipe line an anti-corrosion coating which is a liquid mixture of slurry and curing agent at ratio of 1.8-2.2: 1; or unsaturated ester and unsaturated curing agent at ratio of 0.5-2.5:1; or ethoxyline and curing agent at ratio of 1.5-2.5: 1 and keep it rolling and rocking for 1-10 minutes on a rolling machine. Then dry it in normal temperature for 24 hours or 2-6 hours under 50-200deg.C. This method can effectively solve the problem of rust removing, oil removing and improve the cleanness of hydraulic system and have a long time effective of anti-corrosion.

Description

technical field [0001] The invention relates to an anti-corrosion method, more specifically, relates to an anti-corrosion method for fuel tanks, hydraulic oil tanks and pipeline inner walls of construction machinery, automobiles and hydraulic workstations. Background technique [0002] At present, the oil tanks and pipelines of the working systems of domestic construction machinery, automobiles, and hydraulic workstations have been treated with decades-old rust removal, oil removal, and phosphating processes for anti-corrosion treatment. In recent years, there are also a small number of electrophoresis technology processing for anti-corrosion. Since the phosphating process can only be used for a short period of time, and can only be used for temporary rust prevention in a dry climate, such an anti-corrosion method is not only limited by conditions, but also the anti-corrosion effect cannot be effective for a long time; using electrophoresis techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/22C09D5/08F16L58/10
Inventor 李家强辛金龙
Owner 辛金龙
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