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Acid rust remover

A rust remover, acid technology, applied in the field of cleaning agents, can solve the problems of difficult to achieve ideal conditions for cleaning temperature and cleaning time at the same time, mechanical equipment materials are prone to black surface, and precision components are confused in processing, so as to achieve safe and reliable use. , Short cleaning time, saving manpower and man-hours

Active Publication Date: 2011-04-27
JIANGSU HAIXUN IND GROUP SHARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing cleaning agents for mechanical equipment are solvent-based. The disadvantages of these cleaning agents are firstly that the cleaning effect is not very ideal. The processing of the device causes confusion; secondly, it is highly corrosive to the equipment and increases the cost of the equipment; moreover, it is difficult to achieve the ideal conditions at the same time for cleaning temperature and cleaning time. When the cleaning effect remains unchanged, it is often cleaned at high temperature. The cleaning time can be shortened. When the cleaning temperature is lowered to room temperature, the cleaning time needs to be extended. Generally, the cleaning time at room temperature takes 10 to 30 minutes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The acid rust remover in the present embodiment comprises following components according to weight percentage:

[0041] components

% by weight

sodium phosphate

3

[0042] Ethylene glycol ether

10

Fatty alcohol polyoxyethylene ether with a degree of polymerization of 20

5

hydrochloric acid

2

Deionized water

80

[0043] Preparation method: firstly, weigh each component according to the weight ratio, and then add the above weight sodium phosphate, ethylene glycol ethyl ether, fatty alcohol polyoxyethylene ether with a polymerization degree of 20, and hydrochloric acid in sequence at room temperature. Add it to deionized water, stir until it becomes a uniform aqueous solution, and then it can be made into a finished rust remover.

[0044] The rust remover has a pH value of 3 to 4 and a specific gravity of 1.0 to 1.1.

Embodiment 2

[0046] The acid rust remover in the present embodiment comprises following components according to weight percentage:

[0047] components

% by weight

potassium phosphate

3

Ethylene glycol butyl ether

6

Fatty alcohol polyoxyethylene ether with a degree of polymerization of 20

5

hydrochloric acid

3

Deionized water

83

[0048] Preparation method: First, weigh each component according to the weight ratio, and then sequentially mix the above-mentioned weight of potassium phosphate, ethylene glycol butyl ether, fatty alcohol polyoxyethylene ether with a polymerization degree of 20, and hydrochloric acid at room temperature. Add it into deionized water and stir until it becomes a uniform aqueous solution to make a finished rust remover.

[0049] The rust remover has a pH value of 3 to 4 and a specific gravity of 1.0 to 1.1.

Embodiment 3

[0050] Embodiment 3 effect analysis

[0051] Select the acid rust remover of any one of the formulas in Examples 1 to 2, and clean the mechanical equipment: use 28khz ultrasonic cleaning equipment, place the mechanical equipment in the ultrasonic cleaning equipment, add the rust remover and 20 times the volume of pure water For the mixed liquid, control the washing temperature to 40° C., wash for 6 minutes, and take it out. After cleaning, use an optical microscope to magnify 100 times to detect that there is no oil residue on the surface of the mechanical equipment, the surface is bright, and there is still no blackening or rust on the surface of the mechanical equipment within 24 hours after cleaning.

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Abstract

The invention relates to an acidic rust remover which comprises the following components according to percentage by weight: 3%-10% of phosphate, 5%-10% of osmotic agent, 5%-10% of surface active agent, 1%-6% of pH conditioning agent and the balance of deionized water. The pH value of the acidic rust remover ranges from 10 to 12, and the acidic rust remover is colorless and transparent and has no penetrating odor. The acidic rust remover is highly efficient in cleaning a mechanical apparatus and can completely clear oil stains and rusty spots on the surface of the mechanical apparatus, preventthe rusty spots from being generated on the surface of the mechanical apparatus again, shorten the time for cleaning and improve the work efficiency; and the acidic rust remover is a water-soluble cleaning agent, hardly corrodes the apparatus, effectively reduces the production cost and is safe and reliable in use.

Description

technical field [0001] The invention relates to a cleaning agent, in particular to an acid rust remover for mechanical equipment. Background technique [0002] The cleaning of mechanical equipment is an indispensable process link in the process of processing, assembling, storing and maintaining the parts. After a period of normal operation, the reverse osmosis membrane elements will be polluted by suspended solids or insoluble salts that may exist in the feed water. The most common of these pollutions are calcium carbonate precipitation, calcium sulfate precipitation, metals (iron, manganese, copper, nickel, aluminum, etc.) oxide deposits, rust, inorganic or organic deposit mixtures, natural organic substances, synthetic organic substances. Since the amount of mechanical equipment is quite large, the workload of cleaning such mechanical equipment and the amount of cleaning agent used will definitely increase accordingly. At present, the cleaning methods for mechanical equi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23G1/02
Inventor 仲跻和
Owner JIANGSU HAIXUN IND GROUP SHARE
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