CN1508288A - Iron and steel surface antirust and rust-removing liquid - Google Patents

Abstract

The invention discloses a formula of steel surface antirusting-derusting liquor, adopting phosphoric acid, sodium salt, zinc salt, nickel salt, dichromium trioxide, tartaric acid, citric acid, antirusting additive, spirit polyethenoxy ether, lauric acid oxane condensation compound and water. Take the above matters according to a certain weight percentage, in the acid proof mixer, blend and at the same time slowly pour the phosphoric acid and the rest dissolved, and blend evenly to make the finished product. It does not pollute the environment in the producing course.

Description

The antirust rust cleaning liquid of a kind of steel surface

The present invention relates to the antirust rust cleaning technology of steel surface, the antirust rust cleaning liquid of particularly a kind of steel surface.

The antirust rust cleaning technology of more advanced steel surface number is the employing derusting phosphating agent of putting down in writing in the specification sheets of No. 94107440.4 and No. 92106799.2, the technical recipe of phosphatization liquid as Chinese patent application, forms preservative coat at steel surface.But the shortcoming of above-mentioned technology is shorter by relatively loose, the effectively more antirust time of the formed anti-corrosion layer structure of above-mentioned prescription, and its waste water still has certain pollution to environment.

The objective of the invention is to develop a kind of novel have good antirust property, the antirust rust cleaning liquid of steel surface that the rust cleaning ability is strong, can spray, be coated with, be immersed on the surface of ferrous materials, when producing derusting action, corrosion is changed into fine and close anti-rust film, do not produce pollution in the operating process environment.

The object of the present invention is achieved like this:

The present invention adopts following chemical substance to be mixed with by weight percentage:

Phosphoric acid 5-50%

Sodium salt 0.1-20%

Zinc salt 0.1-15%

Nickel salt 0.01-3%

Chromium sesquioxide 0.1-10%

Tartrate 0.1-15%

Citric acid 0.1-10%

Rust-inhibiting additive 0.05-10%

Polyoxyethylenated alcohol 0.01-2%

Lauric acid ethylene oxide condensate 0.01-2%

Water 5-50%

Above-mentioned sodium salt is sodium-acetate, sodium phosphate, SODIUMNITRATE, water glass, yellow soda ash, sodium formiate;

Above-mentioned nickel salt is single nickel salt, nickelous phosphate;

Above-mentioned zinc salt is zinc nitrate, zinc phosphate, zinc sulfate, primary zinc phosphate.

Preparation process is as follows:

Accurately take by weighing various chemical substances by above-mentioned weight percent.

In the total water amount, take out less water earlier, dissolve sodium salt, zinc salt, nickel salt, chromium sesquioxide, tartrate and citric acid respectively.Remainder water is injected acidproof agitator, stir sodium salt, zinc salt, nickel salt, chromium sesquioxide, tartrate, citric acid and rust-inhibiting additive, polyoxyethylenated alcohol, lauric acid ethylene oxide condensate on one side slowly inject phosphoric acid and dissolve after on one side.Evenly stir after 10-30 minute, above-mentioned mixed solution is quantitatively injected container, make product of the present invention.

Owing to adopt the present invention, not only can remove the erosion rust of steel surface rapidly, form the fine and close strong anti-rust film of bonding force simultaneously, prolong effective rust-proof life, and do not produce pollution in process of production environment.

In conjunction with the embodiments, further describe the present invention.

Embodiment:

With the kilogram is unit, takes by weighing following chemical substance:

Phosphatase 24 0

Sodium-acetate 15

Single nickel salt 5

Primary zinc phosphate 10

Chromium sesquioxide 3

Tartrate 2

Citric acid 2

Rust-inhibiting additive 0.2

Polyoxyethylenated alcohol 1.8

Lauric acid ethylene oxide condensate 1

Water 20

Preparation process is as follows:

By the above-mentioned various chemical substances of the accurate weighing of weight.

In the total water amount, take out less water earlier, dissolve sodium salt, zinc salt, nickel salt, chromium sesquioxide, tartrate and citric acid respectively.Remainder water is injected the acid proof agitator, stir on one side, sodium salt, zinc salt, nickel salt, chromium sesquioxide, tartrate, citric acid and rust-inhibiting additive, polyoxyethylenated alcohol, lauric acid ethylene oxide condensate after slowly injecting phosphoric acid on one side and dissolving, stir after 20 minutes, inject packaging vessel, make the present invention.

Claims (2)

1, the antirust rust cleaning liquid of a kind of steel surface is characterized in that: the present invention adopts following chemical substance to be mixed with by weight percentage:

Phosphoric acid 5-50%

Sodium salt 0.1-20%

Zinc salt 0.1-15%

Nickel salt 0.01-3%

Chromium sesquioxide 0.1-10%

Tartrate 0.1-15%

Citric acid 0.1-10%

Rust-inhibiting additive 0.05-10%

Polyoxyethylenated alcohol 0.01-2%

Lauric acid ethylene oxide condensate 0.01-2%

Water 5-50%.

2, the antirust rust cleaning liquid of a kind of steel surface according to claim 1, it is characterized in that: above-mentioned sodium salt is sodium-acetate, sodium phosphate, SODIUMNITRATE, water glass, yellow soda ash, sodium formiate; Above-mentioned nickel salt is single nickel salt, nickelous phosphate; Above-mentioned zinc salt is zinc nitrate, zinc phosphate, zinc sulfate, primary zinc phosphate.