CN102977988A - Temper rolling liquor and preparation method thereof - Google Patents

Abstract

The invention relates to a temper rolling liquor which comprises the components in percent by weight: 0.001 to 0.01 percent of EDTA, 1 to 5 percent of organosiloxane, 5 to 20 percent of organic amine, 0.1 to 1 percent of Span-60, 40 to 50 percent of inorganic borate, 1 to 6 percent of inorganic acid, and the balance of water. The temper rolling liquor is prepared from a water-soluble anticorrosive additive, a lubricant, a surface active agent and deionized water, is used for the temper rolling process of a cold-rolled sheet, has a favorable cleaning effect, a lubricating effect and an anticorrosive effect on strip steel and rolls of a temper mill, and has a favorable cleaning property, an excellent anticorrosive property and a defoaming property. The temper rolling liquor has proper lubricating performance and friction coefficients, is excellently soluble with anticorrosive oil, is suitable for the temper rolling process after the coil-rolled sheet is annealed, can ensure high-speed and stable rolling, and reduces the wear.

Description

A kind of wet-leveling liquid and preparation method thereof

Technical field

The invention belongs to the lubricating oil field, especially a kind of wet-leveling liquid and preparation method thereof.

Background technology

Wet-leveling liquid is mainly used in the temper rolling technology after iron and steel enterprise's cold-rolled steel sheet annealing, its objective is the dirts such as carbon residue that form after cover annealing in order to remove to greatest extent steel plate, obtains best plate face smooth finish.Wet-leveling liquid mainly be with organic water dissolubility rust-preventive agent, lubricant, clean-out system is composite forms, should notice that used lube product contains potential noxious pollutant, must avoid prolonging or with the used product of any type and form skin contact is arranged repeatedly.

In China, owing to the gap on the understanding and technique, the reason such as backward in technique, the wet-leveling liquid produced of domestic manufacturer is still take the inorganic wet-leveling liquid of nitrite as main at present, and this wet-leveling liquid ubiquity is shortcoming and defect once, and 1, antirust cleaning performance is relatively poor; 2, the health and the environmental security that bring of nitrite.

Summary of the invention

The object of the invention is to overcome the prior art weak point, wet-leveling liquid that a kind of technique is simple, performance is higher and preparation method thereof is provided.

The present invention solves its technical problem and takes following technical scheme to realize:

A kind of wet-leveling liquid, its moiety and weight percent are as follows:

Surplus is water.

And described organic amine is Monoethanolamine MEA BASF.

And described mineral acid is phosphoric acid.

A kind of preparation method of wet-leveling liquid the steps include:

⑴ drop into mineral acid, organic amine, EDTA successively in the still, stirs and be warming up to 85 ℃, after question response is complete, and constant temperature 5-15 minute;

⑵ constant temperature to 70 ℃ adds inorganic borate, and recirculation was stirred 20 minutes;

⑶ be cooled to 55 ℃, adds organo-siloxane, Span-60, and recirculation was stirred 35 minutes;

⑷ add deionized water, circulation stirring 20 minutes;

⑸ inspection by sampling appearance transparent; 1% emulsion is without layering; PH value 8-9 filters, detects, and gets product, and adding water, to be made into 5% aqueous solution stand-by.

Advantage of the present invention and positively effect are:

The wet-leveling liquid that the present invention relates to is comprised of water-soluble anti-rust additive, lubricant, tensio-active agent and deionized water, be used for the wet smooth operation that cold rolled sheet is produced, roll with steel and levelling machine had good cleanup action, lubrication and rust inhibition, rust-preventing characteristic and defoaming with good cleaning, excellence, this wet-leveling liquid has proper lubrication performance and frictional coefficient, has good consistency with slushing oil, be applicable to the temper rolling technology after cold-rolled steel sheet is annealed, can guarantee at a high speed, steadily rolling, to reducing wear.

Embodiment

The invention will be further described below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.

A kind of wet-leveling liquid, its moiety and weight percent are as follows:

Surplus is water.

The preparation method of above-mentioned wet-leveling liquid the steps include:

⑴ drop into phosphoric acid, Monoethanolamine MEA BASF, EDTA successively in the still, stirs and be warming up to 85 ℃, after question response is complete, and constant temperature 5-15 minute;

⑵ constant temperature to 70 ℃ adds inorganic borate, and recirculation was stirred 20 minutes;

⑶ be cooled to 55 ℃, adds organo-siloxane, Span-60, and recirculation was stirred 35 minutes;

⑷ add deionized water, circulation stirring 20 minutes;

⑸ inspection by sampling appearance transparent; 1% emulsion is without layering; PH value 8-9 filters, detects, and gets product, and adding water, to be made into 5% aqueous solution stand-by.

Claims (4)

1. wet-leveling liquid, it is characterized in that: its moiety and weight percent are as follows:

Surplus is water.

2. wet-leveling liquid according to claim 1, it is characterized in that: described organic amine is Monoethanolamine MEA BASF.

3. wet-leveling liquid according to claim 1, it is characterized in that: described mineral acid is phosphoric acid.

4. a method for preparing wet-leveling liquid as claimed in claim 1 is characterized in that: the steps include:

⑴ drop into mineral acid, organic amine, EDTA successively in the still, stirs and be warming up to 85 ℃, after question response is complete, and constant temperature 5-15 minute;

⑵ constant temperature to 70 ℃ adds inorganic borate, and recirculation was stirred 20 minutes;

⑶ be cooled to 55 ℃, adds organo-siloxane, Span-60, and recirculation was stirred 35 minutes;

⑷ add deionized water, circulation stirring 20 minutes;

⑸ inspection by sampling appearance transparent; 1% emulsion is without layering; PH value 8-9 filters, detects, and gets product, and adding water, to be made into 5% aqueous solution stand-by.