Preparation method and using method of rust remover for electromechanical equipment

Abstract

The invention provides a preparation method and using method of a rust remover for electromechanical equipment. The preparation method comprises the following steps of: mixing a condensation compound of alkyl phenol and epoxyethane with a weakly alkaline sodium salt, thiourea, sulfamic acid and organic weak acid, and stirring after adding water so as to fully dissolve all the components in the water. The using method comprises the following steps of: cleaning the electromechanical equipment by using gasoline or acetone so as to remove oil, immersing the cleaned electromechanical equipment without oil into the prepared dust remover solution for 20-40 minutes at a normal temperature, washing the electromechanical equipment by using running water for 4-8 minutes immediately after taking out the electromechanical equipment from the dust remover solution, then immersing the electromechanical equipment into a sodium carbonate aqueous solution for 10-25 minutes, taking out the electromechanical equipment, washing the electromechanical equipment by using running water and wiping the electromechanical equipment dry. The rust remover is simple in the preparation technology and has no influence on the surface of the electromechanical equipment; the surface of the electromechanical equipment is relatively bright after rust on the surface of the electromechanical equipment is removed by using the rust remover; the rust remover has a good rust removal effect, is low in cost, can be used at a normal temperature, is less likely to generate acid mist, is harmless to human bodies and environmentally-friendly, and does not damage the surface of the electromechanical equipment; and the preparation method and using method of the rust remover are simple in operation.

Description

technical field [0001] The invention belongs to the technical field of rust removers, and in particular relates to a method for preparing a rust remover for electromechanical equipment and a method for using the rust remover. Background technique [0002] As we all know, with the progress of society, more and more new chemicals appear in people's sight. Rust removal is an important link in the pre-treatment process of the road assembly process. The quality of the pre-treatment will directly affect the later road assembly and workpieces. In order to ensure the quality of products, companies usually need to carry out strict pre-treatment operations. For rust removal, different industries and different workpieces will use different methods, specifically physical, chemical and electrochemical methods for rust removal. At present, chemical derusting is still used as the main method for derusting. Chemical derusting is currently mainly used in automobiles, metallurgy and other in...

AI Technical Summary

Problems solved by technology

[0003] For chemical rust removal technology, there are mainly the following forms in the market. First, use a single rust removal solution, such as hydrochloric acid or sulfuric acid, to form an acid solution with water, which has the advantages of low cost, simple operation, and good rust removal effect. Advantages, but the disadvantage is that it is not conducive to the protection of the workpiece itself; second, adding rust removal solution refers to adding slow-release agents, anti-fog agents, etc. on the basis of acid, and effectively protect the workpiece during the rust removal process. And inhibit the generation of acid mist, which is beneficial to on-site operation and the protection of staff. The disadvantage is that the cost is high, and the effect is not good when the ratio is not suitable. Third, the synthetic derusting liquid, the advantage of this kind of product is to simplify the pre-treatment process , to reduce the total cost, the disadvantage is that it cannot completely replace the role of the treatment liquid in different processes

[0004] As mentioned above, the traditional derusting liquid has some characteristic defects no matter what form it is in, and there are some insurmountable defects when it is used in practice, and this is the main shortcoming of the traditional technology