Metal antirust agent

Abstract

The invention discloses a metallic antirust agent, which is characterized in that the metallic antirust agent is prepared by following raw materials by weight: 30 to 40 percent of morpholine, 10 to 15 percent of 1, 3 ketoglutarate morpholine, 5 to 8 percent of boric acid morpholine, 0.3 to 0.5 percent of benzotriazole and residual quantity of water. The metallic antirust agent of the invention has good antirust effect for cast iron, better applicability to copper and aluminum, and better compatibility with compressor working substances and refrigerant oil, is applicable to the rust resistancebetween working procedures and the final rust resistance in the field of compressors, has lower residual rate and better compatibility with the compressor working substances, can form ultra-thin antirust films, realize the rust resistance between the working procedures and achieve long antirust time which lasts for over 3 months, and has better applicability to copper and aluminum; simultaneouslythe metallic antirust agent does not contain substances that are harmful to human bodies, is nontoxic and harmless to human bodies, and has good environmental protection effect.

Description

technical field [0001] The invention relates to an antirust agent, in particular to a metal antirust agent suitable for inter-process antirust and final antirust in the compressor industry. Background technique [0002] In the metal processing industry, anti-rust agents are widely used for inter-process anti-rust and final anti-rust. The use of water-based anti-rust agents in the metal anti-rust process can not only improve and simplify the process, but also reduce production costs. In recent years, various countries have actively developed water-based antirust agents suitable for metal processing to meet the requirements of various aspects of the metal processing industry. [0003] Water-based anti-rust agent refers to the anti-rust aqueous solution prepared by adding a certain amount of water-soluble corrosion inhibitor with water as the matrix. Corrosion inhibitors are divided into inorganic corrosion inhibitors (such as oxidizer NO 3 - , NO 2 - , CrO 4 2- 、Cr 2 o...

AI Technical Summary

Problems solved by technology

[0005] At present, in the manufacturing industry of refrigerators and air-conditioning compressors, foreign water-based antirust agents monopolize the market of our country's antirust agents in the compressor manufacturing industry. The price of imported antirust agents is high, which increases the manufacturing cost of compressors.

However, domestically produced anti-rust agents generally have the following defects: foreign matter: resulting in poor performance of the compressor, causing the compressor to be stuck, causing the compressor to be scrapped; poor anti-rust performance, easy to rust, causing the impurity content of the compressor to exceed the standard, causing The poor performance of the compressor leads to the scrapping of the compressor; the incompatibility of the residues: damage to the refrigeration oil, causing the compressor to be poorly lubricated, poor in performance or overloaded, destroying the refrigerant, and causing the compressor to be scrapped, etc.

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