CN102002714A - Wet leveling liquid composition and use thereof - Google Patents
Wet leveling liquid composition and use thereof Download PDFInfo
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Abstract
The invention relates to a wet leveling liquid composition and use thereof, and mainly solves the problem that wet leveling liquid cannot meet the requirement that a down rate is greater than 3.0 percent in the leveling process in the prior art. By adopting a technical scheme that: the wet leveling liquid composition comprises the following components in part by weight: a) 5 to 50 parts of antirust additive; b) 1 to 12 parts of cleaning agent; c) 0.5 to 10 parts of lubricating agent; and d) 28 to 93.5 parts of water, the invention better solves the problem and can be used in the leveling process of cold-rolled steel sheets.
Description
Technical field
The present invention relates to a kind of wet-leveling liquid composite and uses thereof.
Background technology
The production process of cold-rolled steel sheet generally comprises pickling, rolling, annealing, smooth and 5 operations of finishing.Smooth is the cold finish rolling process that the band steel is carried out under certain draft after annealing, and this operation has determined configuration of surface, plate shape, mechanical property and the processing performance of finished strip to a great extent.Flattening process is divided into does smooth and wet smooth two kinds, many at present based on temper rolling technology, promptly adopts wet-leveling liquid to influence surface quality to prevent that surface of steel plate from scratching.Wet-leveling liquid can be divided into two kinds of the smooth liquid of inorganic type (nitrite) and the smooth liquid of organic type (organic amine salt).Though report that the nitrite compounds has certain damaging effect to human body, but the health problem that still most based on the smooth liquid of inorganic salt type (nitrite) in the current relevant wet-leveling liquid patent, this type of smooth liquid exists mainly that cleaning performance is poor, plate face luminance brightness difference and nitrite bring; And up to the present, the patent report that relates to organic amine salt class wet-leveling liquid is less, and exploitation is demanded in this field urgently.
Because inorganic nitrite class wet-leveling liquid in use is proved to be meeting generation detrimentally affect to environment and human health, so the smooth liquid of nitrites is eliminated by market just gradually at present, has for example introduced a kind of inorganic salts wet-leveling liquid that contains nitrite rust-preventive agent among the patent US004366077.In organic amine salt wet-leveling liquid patent, DE3923283A1 discloses a kind of additive, and its molecular structural formula is as follows:
This smooth liquid pH value has antirust preferably and cleaning performance between 8～11, but its lubricity performance is general.Also introduced the nitrite component of utilizing in organic acid and the composite alternative mineral-type of organic amine among CN200710023703.6A and the CN02146602.5A, reached antirust anti-rotten effect, and have certain anti-macula lutea effect.But up to now, in all China and foreign countries' wet-leveling liquid patents of being reported, all do not introduced with regard to the extreme boundary lubrication performance of its wet-leveling liquid, common common wet-leveling liquid only satisfies the requirement of the annealed back of band steel with 0.3%～3.0% the formation process that draft was carried out.Yet along with the continuous progress of rolling technology, the draft of existing many processing requirements substantially exceeds 3.0% at present, therefore requires wet-leveling liquid will have better extreme boundary lubrication on the original formulation basis.
Summary of the invention
One of technical problem to be solved by this invention is that the wet-leveling liquid that exists in the prior art can not satisfy that draft provides a kind of new wet-leveling liquid composite greater than 3.0% problem that requires in the formation process.When said composition is used for the smooth operation of cold-rolled steel sheet, when having good rust-preventing characteristic and detergency, also have better extreme boundary lubrication performance, can satisfy the requirement of 3～10% higher drafts.Two of technical problem to be solved by this invention provides a kind of purposes of described wet-leveling liquid composite.
For one of solving the problems of the technologies described above, the technical solution used in the present invention is as follows: a kind of wet-leveling liquid composite comprises following component in parts by weight:
A) 5～50 parts rust-preventive agent;
B) 1～12 part clean-out system;
C) 0.5～10 part lubricant;
D) 28～93.5 parts water;
Wherein said rust-preventive agent is selected from least a in Sodium Benzoate, phenylformic acid monoethanolamine, p-nitrobenzoic acid monoethanolamine, sebacic acid sodium, sebacic acid monoethanolamine, dodecenylsuccinic acid diethanolamine, Monoethanolamine Oleate, ten sodium hisbenzene sulfonates, 18 Phenylsulfonic acid amine, poly-alkoxyl group phosphoric acid ester diethanolamine, boric acid monoethanolamine or the water-soluble boron acid esters;
Described clean-out system is selected from Sodium dodecylbenzene sulfonate, oleyl alcohol sulfuric ester sodium salt, sodium dodecyl aminopropionitrile, alkyl dimethyl trimethyl-glycine, polyoxyethylene nonylphenol ether, polyoxyethylene octylphenol ether, C
12～C
18At least a in the fatty alcohol-polyoxyethylene ether;
Described lubricant is selected from least a in Malaysia oleic acid tri-isopropanolamine salt, triethanolamine oleate, coconut oil monoethanolamine amidophosphoric acid ester, polyoxyethylene oleic acid ester, carboxylic acid ethylene oxide adduct, carboxylic acid propylene oxide adduct, PEP-101, castor oil polyoxyethylene ether, sulfonated castor oil, alkyl epoxy ethyl group thiophosphatephosphorothioate or the water-soluble thiophosphatephosphorothioate.
In the technique scheme, in parts by weight, the amount ranges preferable range of rust-preventive agent is 10～40 parts, and more preferably scope is 15～30 parts; The consumption preferable range of clean-out system is 3～10 parts, and more preferably scope is 5～8 parts; The consumption preferable range of lubricant is 1～8 part, and more preferably scope is 2～7 parts; The consumption preferable range of water is 42～86 parts, and more preferably scope is 55～78 parts.In parts by weight, preferably also comprise e in the described composition) 1～15 part pH value conditioning agent, its consumption preferable range is 3～12 parts; Wherein pH value conditioning agent is selected from sodium hydroxide, potassium hydroxide, yellow soda ash, sodium bicarbonate, potassium hydrogen phosphate, potassium primary phosphate, Sodium phosphate dibasic, monoethanolamine, trolamine, quadrol or N-methyl-2, at least a in the 3-dihydroxypropyl amine.In parts by weight, preferably also comprise f in the described composition) 0.1～5 part cleaning additive, its consumption preferable range is 0.1～3 part; Wherein cleaning additive is selected from least a in yellow soda ash, water glass, Starso, tetrasodium pyrophosphate, Sodium hexametaphosphate 99, tripoly phosphate sodium STPP, Trisodium Citrate, tetrasodium ethylenediamine tetraacetate or the ethylenediamine triacetic acid sodium salt.In parts by weight, also comprise g in the described composition) 0.01～0.5 part defoamer, its consumption preferable range is 0.05～0.2 part; Wherein defoamer is selected from least a in polyethers, methyl-silicone oil, hydroxy silicon oil, amido silicon oil or the polydimethylsiloxane.
For solve the problems of the technologies described above two, the technical solution used in the present invention is as follows: described wet-leveling liquid composite is used for the smooth operation of cold-rolled steel sheet.
The preparation method of wet-leveling liquid composite of the present invention is as follows: water is heated to 35～45 ℃, the rust-preventive agent, pH value conditioning agent, clean-out system, cleaning additive, lubricant and the defoamer that add aequum in the stirring successively, fully stirring stops after 0.5～10 hour stirring and heating, leaves standstill after-filtration can in 1～3 hour and gets final product.
The inventor is surprised to find, and wet-leveling liquid composite of the present invention not only has good anti-rust properties and cleaning performance, but also has better extreme boundary lubrication performance owing to the synergy that has made full use of between each component.Be applicable to the temper rolling technology after cold-rolled steel sheet is annealed, can satisfy the requirement of draft 0.3～10%, can guarantee at a high speed, steadily rolling; It is especially suitable greater than 3% o'clock when draft is had relatively high expectations.The extreme boundary lubrication performance that the present composition is suitable can provide suitable lubricated guarantee, thereby reduces the steel plate wearing and tearing, improves plate face quality, has also solved simultaneously because of the extreme boundary lubrication performance improves to cause cleaning performance to reduce this technological difficulties.In addition, do not contain the harmful material of Sodium Nitrite in the present composition, safe and reliable, obtained better technical effect.
The assessment method of wet-leveling liquid composite of the present invention is as follows:
Outward appearance: adopt visual method to measure.
Cleaning performance: the cleaning performance that adopts gravimetric determination liquid to be measured.
Extreme boundary lubrication performance: the extreme boundary lubrication performance that adopts tetra-ball machine test method (GB/T 3142) test liquid to be measured.
Rustless property: the rustless cast iron filing of 2 grams is washed secondaries with No. 120 industrial napthas, drain the back and use hot blast drying rapidly, be laid in the bottom then equably and be placed with middle having drawn on the culture dish of 30 millimeters * 30 millimeters grid filter paper (wherein being divided into 5 millimeters * 5 millimeters big lattices totally 36 lattice).With 2 milliliters of pipette, extract 4 weight % liquid to be measured, be sprinkled upon on the iron filings equably, cover culture dish, place under the room temperature and observed iron filings corrosion changing conditions in 72 hours, rinse out iron filings on the filter paper with tap water then, with hot blast filter paper is dried up, with reference to the antirust evaluation criteria inspection of table 1, the corrosion situation on the evaluation filter paper.
Table 1
The invention will be further elaborated below by embodiment.
Embodiment
[embodiment 1～12]
Water is heated to 40 ℃, adds rust-preventive agent, pH value conditioning agent, clean-out system, cleaning additive, lubricant and the defoamer of aequum in the stirring successively, fully stir and stop after 2 hours stirring and heating, leave standstill after-filtration can in 1.5 hours and get final product.Each component and content thereof see Table 2, and performance sees Table 3.In the table 2,
EL-20: castor oil polyoxyethylene ether HEDTA: ethylenediamine triacetic acid sodium salt
STPP: tripoly phosphate sodium STPP EDTA-4Na: tetrasodium ethylenediamine tetraacetate
EL-30: castor oil polyoxyethylene ether AEO-6: aliphatic alcohol polyethenoxy 6 ethers
EO/PO polyethers: ethylene oxide/propylene oxide polyethers
[Comparative Examples 1]
Patent CN200710023703.6A[embodiment 6] wet-leveling liquid, it is composed as follows: C
8～C
12Lipid acid 30%, 2-amino-2-methyl 1-propyl alcohol 25%, mercaptobenzothiazole 24.9%, sodium wolframate 5%, yellow soda ash 5%, fatty alcohol-polyoxyethylene ether 0.1%, water 10%.Its performance sees Table 3.
[Comparative Examples 2]
Patent DE3923283A1[embodiment 4] wet-leveling liquid, it is composed as follows: diethanolamine hydrochloride 14%, m-phthalic acid 7%, triethanol amine oleate 14%, sebacic acid zinc 7%, lauroyl-N-methyl aminoacetic acid sodium 5%, water 53%.Its performance sees Table 3.
Table 3
| Outward appearance | Cleaning performance | Rustless property | Extreme boundary lubrication performance (P B)，N * | |
| Embodiment 1 | The transparent red brown liquid | 91.99％ | 0 grade | 235 |
| Embodiment 2 | The transparent red brown liquid | 90.85％ | 1 grade | 235 |
| Embodiment 3 | The transparent red brown liquid | 88.48％ | 0 grade | 196 |
| Embodiment 4 | The transparent red brown liquid | 92.44％ | 0 grade | 314 |
| Embodiment 5 | The transparent red brown liquid | 92.38％ | 0 grade | 314 |
| Embodiment 6 | Transparent weak yellow liquid | 84.88％ | 1 grade | 235 |
| Embodiment 7 | Transparent weak yellow liquid | 90.25％ | 2 grades | 314 |
| Embodiment 8 | Transparent weak yellow liquid | 82.89％ | 1 grade | 314 |
| Embodiment 9 | Transparent weak yellow liquid | 91.26％ | 0 grade | 314 |
| Embodiment 10 | The transparent red brown liquid | 88.46％ | 0 grade | 196 |
| Embodiment 11 | The transparent red brown liquid | 84.36％ | 2 grades | 314 |
| Embodiment 12 | The transparent red brown liquid | 90.72％ | 1 grade | 392 |
| Comparative Examples 1 | The transparent red brown liquid | 84.75％ | 1 grade | 157 |
| Comparative Examples 2 | Transparent weak yellow liquid | 79.40％ | 2 grades | 118 |
* the extreme boundary lubrication performance of all embodiment shown in the table 3 all adopts the test of tetra-ball machine test method, proves by production practice: P
BIt is 0.3～3% flattening process requirement that the wet-leveling liquid product of value＜20kg (being 196N) can satisfy draft; 20kg (being 196N)＜P
BIt is 3～6% flattening process requirement that the wet-leveling liquid product of value＜24kg (being 235N) can satisfy draft; 24kg (being 235N)＜P
BIt is 6～10% flattening process requirement that the wet-leveling liquid product of value＜32kg (being 314N) can satisfy draft.
Claims (10)
1. wet-leveling liquid composite comprises following component in parts by weight:
A) 5～50 parts rust-preventive agent;
B) 1～12 part clean-out system;
C) 0.5～10 part lubricant;
D) 28～93.5 parts water;
Wherein said rust-preventive agent is selected from least a in Sodium Benzoate, phenylformic acid monoethanolamine, p-nitrobenzoic acid monoethanolamine, sebacic acid sodium, sebacic acid monoethanolamine, dodecenylsuccinic acid diethanolamine, Monoethanolamine Oleate, ten sodium hisbenzene sulfonates, 18 Phenylsulfonic acid amine, poly-alkoxyl group phosphoric acid ester diethanolamine, boric acid monoethanolamine or the water-soluble boron acid esters;
Described clean-out system is selected from Sodium dodecylbenzene sulfonate, oleyl alcohol sulfuric ester sodium salt, sodium dodecyl aminopropionitrile, alkyl dimethyl trimethyl-glycine, polyoxyethylene nonylphenol ether, polyoxyethylene octylphenol ether, C
12～C
18At least a in the fatty alcohol-polyoxyethylene ether;
Described lubricant is selected from least a in Malaysia oleic acid tri-isopropanolamine salt, triethanolamine oleate, coconut oil monoethanolamine amidophosphoric acid ester, polyoxyethylene oleic acid ester, carboxylic acid ethylene oxide adduct, carboxylic acid propylene oxide adduct, PEP-101, castor oil polyoxyethylene ether, sulfonated castor oil, alkyl epoxy ethyl group thiophosphatephosphorothioate or the water-soluble thiophosphatephosphorothioate.
2. wet-leveling liquid composite according to claim 1 is characterized in that in parts by weight,
A) amount ranges of rust-preventive agent is 10～40 parts;
B) amount ranges of clean-out system is 3～10 parts;
C) amount ranges of lubricant is 1～8 part;
D) amount ranges of water is 42～86 parts.
3. wet-leveling liquid composite according to claim 2 is characterized in that in parts by weight,
A) amount ranges of rust-preventive agent is 15～30 parts;
B) amount ranges of clean-out system is 5～8 parts;
C) amount ranges of lubricant is 2～7 parts;
D) amount ranges of water is 55～78 parts.
4. wet-leveling liquid composite according to claim 1, it is characterized in that in parts by weight, also comprise e in the described composition) 1～15 part pH value conditioning agent, wherein pH value conditioning agent is selected from sodium hydroxide, potassium hydroxide, yellow soda ash, sodium bicarbonate, potassium hydrogen phosphate, potassium primary phosphate, Sodium phosphate dibasic, monoethanolamine, trolamine, quadrol or N-methyl-2, at least a in the 3-dihydroxypropyl amine.
5. wet-leveling liquid composite according to claim 4 is characterized in that in parts by weight, and the consumption of pH value conditioning agent is 3～12 parts in the described composition.
6. wet-leveling liquid composite according to claim 1, it is characterized in that in parts by weight, also comprise f in the described composition) 0.1～5 part cleaning additive, wherein cleaning additive is selected from least a in yellow soda ash, water glass, Starso, tetrasodium pyrophosphate, Sodium hexametaphosphate 99, tripoly phosphate sodium STPP, Trisodium Citrate, tetrasodium ethylenediamine tetraacetate or the ethylenediamine triacetic acid sodium salt.
7. wet-leveling liquid composite according to claim 6 is characterized in that in parts by weight, and the consumption of cleaning additive is 0.1～3 part in the described composition.
8. wet-leveling liquid composite according to claim 1, it is characterized in that in parts by weight, also comprise g in the described composition) 0.01～0.5 part defoamer, wherein defoamer is selected from least a in polyethers, methyl-silicone oil, hydroxy silicon oil, amido silicon oil or the polydimethylsiloxane.
9. wet-leveling liquid composite according to claim 8 is characterized in that in parts by weight, and the consumption of defoamer is 0.05～0.2 part in the described composition.
10. the described wet-leveling liquid composite of claim 1～9 is used for the smooth operation of cold-rolled steel sheet.
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