High-efficiency corrosion-retarding detergent for cobalt-base alloy

Abstract

The invention provides a high-efficiency corrosion-retarding detergent for cobalt-base alloy. The invention belongs to the field of detergents and especially relates to a detergent for cobalt-base alloy. The concentrated solution of the high-efficiency corrosion-retarding detergent for cobalt-base alloy provided in the invention comprise the following components on a mass basis: 3.7 to 7.4% of a composite nonionic surfactant, 0.6 to 1.2% of a composite borax corrosion inhibitor, 0.4 to 0.8% of an ethanol cosolvent, 0.5 to 1% of an ethylene diamine tetraacetic acid water softener and 0.2 to 0.4% of a silicone polyether anti-foaming agent, with the balance being water. The concentrated solution and water are mixed according to a mass ratio of 1:9 to prepare a working solution. The surfactant of the detergent is a high-efficiency environment-friendly alkalescence detergent compounded by three surfactants and is used with the composite borax corrosion inhibitor according to a scientific mixing rate. The high-efficiency corrosion-retarding detergent has the advantages of low content of organic matters, high cleaning efficiency and a good corrosion-retarding effect, and especially enables the problem of precipitation of cobalt from cobalt-base alloy due to utilization of normal metal detergents to be overcome, loss of cobalt in the alloy structure resulting from cleaning of cobalt-base alloy to be avoided and the quality of the cleaned products to be guaranteed.

Description

technical field [0001] The invention relates to a high-efficiency corrosion-inhibiting cleaning agent for cobalt-based alloys, which belongs to the field of metal cleaning agents, and in particular relates to a cobalt-based alloy cleaning agent. Background technique [0002] Water-based metal cleaning agent has the advantages of strong detergency, good rust resistance, energy saving, convenient and safe use, reduced environmental pollution, low cleaning cost, high economic benefit, and is suitable for mechanical automatic cleaning. It has replaced diesel, kerosene or Traditional cleaning fluids such as gasoline are widely used in the maintenance and repair of machining and mechanical equipment, automobiles, etc. Water-based metal cleaner is compounded by surfactant, builder, corrosion inhibitor, stabilizer, solubilizer and foam stabilizer. A variety of water-based metal cleaning agents have appeared on the market. In order to achieve a better cleaning effect, the content of...

AI Technical Summary

Problems solved by technology

A variety of water-based metal cleaning agents have appeared on the market. In order to achieve a better cleaning effect, the content of organic matter such as surfactants in these cleaning agent formulations is relatively high. The content of organic matter in the cleaning agent accounts for 35%. The high content of organic matter in the cleaning liquid means that the chemical oxygen demand of the sewage after cleaning is high, causing serious pollution to the water environment; Added strong alkali, phosphate and sodium nitrite, these have a strong corrosion inhibition effect, but also have high toxicity, which is harmful to the health of the operator and will also cause environmental pollution. The newly developed environmentally friendly cleaning agent uses The corrosion inhibitors of ammonium salts such as triethanolamine, such as the Chinese patent environment-friendly multifunctional metal cleaning agent with the publication number CN101994126, the efficient multifunctional metal cleaning agent with the publication number CN1844456A and the antirust metal cleaning agent with the publication number CN101413129A are all Contains triethanolamine corrosion inhibitor. Although triethanolamine corrosion inhibitor has good corrosion inhibition effect and environmental protection, there is a serious problem for cobalt-based alloys. Triethanolamine will promote the precipitation of cobalt in cobalt-based alloys , so that the structure of the alloy changes, which seriously affects the quality of the alloy product

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