Plate-strip steel cold-rolling emulsified oil containing nanometer hexagonal boron nitride particles, and preparation method

Abstract

The invention belongs to the technical field of lubricant, and relates to plate-strip steel cold-rolling emulsified oil containing nanometer hexagonal boron nitride particles, and a preparation method, which is used for lubrication in a plate-strip steel cold-rolling process. The emulsified oil comprises the following components in percentage by weight: 0.2 to 1 percent of nanometer hexagonal boron nitride particles, 62 to 72 percent of 12-DEG C palm oil, 0 to 5 percent of vulcanized castor oil, 10 to 12 percent of Span to 80, 6 to 8 percent of Tween-60, 5 to 6 percent of oleic acid, 1.5 to 2 percent of triethanolamine, 4 to 5 percent of petroleum sodium sulfonate with 35 to 45 percent of active substances, and 0 to 2 percent of triorthocresol phosphate. The preparation method adopts the Span-80 serving as an emulsifier and the oleic acid serving as polymeric fatty acid in a formulation to achieve the aim of dispersing nanoparticles through surface modification and molecular complexation without changing the properties of nanometer hexagonal boron nitride or affecting the stability and rust resistance of the primary rolling emulsion. After the plate-strip steel cold-rolling emulsified oil containing nanometer boron nitride particles is diluted with water into the emulsion with volume concentration between 2 and 8 percent, the emulsion can be directly used in the cold-rolling process of plate-band steel. Moreover, the emulsified oil has the advantages of high extreme-pressure lubrication performance, good cooling property, long antirust cycle and safe environmental-friendly use.

Description

technical field [0001] The invention belongs to the technical field of lubricants and is used for the lubrication of the cold-rolling process of strip steel, in particular to a strip-steel cold-rolling emulsified oil containing nano-hexagonal boron nitride particles and a preparation method thereof. Background technique [0002] Rolling process lubrication technology uses emulsion to meet the needs of energy saving, clean production and improvement of product quality in current steel rolling production. With the continuous improvement of rolling speed, reduction and user's requirements for product surface quality in modern rolling mills, higher requirements are put forward for the extreme pressure lubrication performance of cold rolling emulsion. However, most of the currently used emulsions for cold rolling of strip steel have the problems of relatively insufficient bearing capacity and insufficient lubrication. Or because too much traditional extreme pressure lubricant is...

AI Technical Summary

Problems solved by technology

The main reason lies in the rolling emulsion containing nanoparticles, not only the dispersion of nanoparticles in the emulsified oil, but also the stability of the emulsion itself

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