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Derusting and cleaning agent for non-ferro metal

A rust-removing cleaning agent and non-ferrous metal technology, applied in the field of cleaning agents, can solve the problems of confusion in the processing of precision components, unsatisfactory cleaning effect, strong corrosion of equipment, etc., to achieve easy disposal and discharge, safe and reliable use, corrosiveness low effect

Inactive Publication Date: 2009-02-18
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 non-ferrous metal derusting cleaning agents are solvent-based or phosphorus-containing water-based cleaning agents. The disadvantages of these cleaning agents are that the cleaning effect is not very ideal, and the non-ferrous metal surface after cleaning is prone to black surface layer, giving Subsequent processing will bring troubles, especially for the processing of precision components; the cleaning time is long, usually 10 to 30 minutes, and the production efficiency is low; in addition, this type of cleaning agent is highly corrosive to equipment. Increase equipment cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: prepare 20kg cleaning agent.

[0024] Take by weighing 10% sodium tripolyphosphate by weight, 5% polyoxyethylene fatty alcohol ether (0-20) with a degree of polymerization of 20, 2% potassium hydroxide, and deionized water as the remainder. .

[0025] Add the sodium tripolyphosphate, 0-20, and potassium hydroxide of the above weight into deionized water in sequence at room temperature, and stir until a uniform aqueous solution is obtained. The pH value of the cleaning agent is 11, and the specific gravity is greater than 1.0g / cm 3 , the viscosity is 0.9mPas.

Embodiment 2

[0026] Embodiment 2: prepare 20kg cleaning agent.

[0027] Weigh and prepare 6% sodium phosphate, 5% fatty alcohol polyoxyethylene ether (0-10) with a polymerization degree of 10, 3% ammonia water and deionized water as the balance, and set aside for later use.

[0028] Add the above-mentioned weight of sodium phosphate, 0-10 and ammonia water into deionized water in sequence at room temperature, and stir until a uniform aqueous solution is obtained. The pH value of the cleaning agent is 11.5, and the specific gravity is greater than 1.0g / cm 3 , The viscosity is between 0.9mPas.

Embodiment 3

[0029] Embodiment 3: prepare 20kg cleaning agent.

[0030] Weigh and prepare 6% sodium diphosphate, 5% fatty alcohol polyoxyethylene ether (0-40) with a polymerization degree of 40, 3% sodium hydroxide and deionized water as the balance, and set aside for later use.

[0031] Add the sodium diphosphate, 0-40 and sodium hydroxide of the above weight into deionized water in sequence at room temperature, and stir until a uniform aqueous solution is obtained. The pH value of the cleaning agent is 12, and the specific gravity is greater than 1.0g / cm 3 , the viscosity is 1.0mPa.

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PUM

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Abstract

The invention provides non ferrous metal derusting cleaning agent which includes phosphate, surface active agent, pH value regulator and de-ionized water. The weight percentage of each component is as follows: 5 to 10 percent of phosphate, 5 to 10 percent of surface active agent, 1 to 6 percent of pH value regulator and the rest is the de-ionized water. The pH value of the mixed liquid is ranged from 11 to 12; the non ferrous metal derusting cleaning agent has the effects of high efficiency and easy cleaning to non ferrous metals to lead the rusty spots on the surfaces of the non ferrous metals to be completely cleaned, can prevent the surfaces of the non ferrous metals from forming rusty spots again, can also shorten the cleaning time and improve the working efficiency; the non ferrous metal derusting cleaning agent is water-soluble cleaning agent, convenient for the processing and drainage of the wasted liquid after cleaning and accords with the requirements for environment protection; besides, the corrosion property to device is low; the production cost is effectively reduced; besides, the non ferrous metal derusting cleaning agent is safely and reliably used.

Description

technical field [0001] The invention relates to a cleaning agent, in particular to a water-based nonferrous metal derusting cleaning agent. Background technique [0002] Cleaning is an important process in the processing and production of various products. For high-tech products, cleaning is a key process. The cleanliness of the product is related to the performance, quality, service life and reliability of the product, especially high-tech products have the characteristics of high performance, high reliability, high precision, high integration and miniaturization, and are very sensitive to cleanliness. Minor contamination can have a serious impact on product performance, quality, service life and reliability. Therefore, improving the cleanliness of products has become an important issue to improve product performance, quality, service life and reliability. [0003] The amount of ordinary mechanical parts processed and prepared by non-ferrous metal materials and precision ...

Claims

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Application Information

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IPC IPC(8): C23G1/14
Inventor 仲跻和
Owner JIANGSU HAIXUN IND GROUP SHARE
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