CN103205308B - Wet tempering lubricant composition - Google Patents
Wet tempering lubricant composition Download PDFInfo
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- CN103205308B CN103205308B CN201310087134.7A CN201310087134A CN103205308B CN 103205308 B CN103205308 B CN 103205308B CN 201310087134 A CN201310087134 A CN 201310087134A CN 103205308 B CN103205308 B CN 103205308B
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- leveling liquid
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Abstract
The invention discloses a wet tempering lubricant composition used for tempering process sections in cold-roll steel sheet production. The wet tempering lubricant composition comprises, by weight, 5%-35% of compound antirust agents, 2%-15% of organic corrosion inhibition chelating agents, 6%-10% of organic polyamine PH (pondus hydrogenii) value modifier, 6%-18% of lubricants, 0.1%-2% of surfactants and the balance being deionized water. The compound antirust agents are compounded by tricarboxylic acid ammonium salt and polyphosphoric acid ammonium salt with weight proportion of 1:3-5:1. The wet tempering lubricant composition can be used for replacing traditional wet tempering lubricant composition containing nitrite, is environmental-friendly and has excellent antirust performance; and the wet tempering lubricant composition can reach 20d and above in a scrap iron filter paper antirust test zero degree when being used in low concentration (1wt% concentration), so that use cost of the wet tempering lubricant composition can be greatly reduced.
Description
Technical field
The present invention relates to smooth operation section wet-leveling liquid composite used in a kind of cold-rolled steel sheet production.
Background technology
The production process of cold-rolled steel sheet generally comprises pickling, rolling, annealing, smooth and five operations of finishing.Smooth be band steel after recrystallization annealing with 0.3 ~ 3% the cold finishing stands that draft was carried out.This operation has determined condition of surface, plate shape, mechanical property and the processing performance of finished strip to a great extent.Smooth production is in the past smooth without the dry method of technological lubrication, from the seventies, in order to improve antirust ability and improve strip quality, extensively adopts water-soluble or oil-soluble antirust agent to spray roll gap as smoothing agent, carries out wet method smooth.
With dry smooth comparing, the wet smooth following advantage that mainly contains: 1. can guarantee the realization of smooth unit elongation; 2. can improve the clean condition of belt steel surface, keep the clean of levelling machine and each roll surface of finishing unit, avoid, because impurity is pressed into, impurity adhesion produces the defects such as slivering, both having facilitated roll shape adjustment, prevent that again surface of cold-rolled steel plate from scuffing occurring and affect surface of cold-rolled steel plate quality; 3. the band steel after smooth has rust-proof effect, and coil of strip stores non-corrosive a middle or short term in warehouse; 4. reduce the wearing and tearing with steel and roll, thereby can reduce roll consumption, improved roll campaign, under identical smooth condition, can reduce rolling load 30 %～40 %.
The technology lubricant of smooth use---wet smoothing agent, generally can be divided into two large classes: a class contains nitrite, another kind of not containing nitrite.The rustless property of the wet smoothing agent that contains nitrite is stronger, but owing to wet smoothing agent must being sprayed on steel plate in use, and they are fine mist and are distributed in roll mill stand ambient air and form aerosol, can work the mischief to human body.And the wet smoothing agent that does not contain nitrite is difficult to ensure that card has enough corrosion-resisting functions to wet steel band of reeling.
In current relevant wet-leveling liquid patent, still majority be take the smooth liquid of inorganic salt type (nitrite) as main, and the patent report that relates to organic amine salt class wet-leveling liquid also started to increase in recent years.Mainly there is the health problem that cleaning performance is poor, plate face luminance brightness is poor and nitrite brings in the smooth liquid of nitrites; Organic amine salt wet-leveling liquid mainly exists rustless property poor, needs the problems such as working concentration higher (thereby use cost is higher).
In patent US004366077, introduced a kind of inorganic salts wet-leveling liquid that contains nitrite rust-preventive agent;
The rust-preventive agent using in patent CN200910194891 is selected from least one in Sodium Benzoate, phenylformic acid monoethanolamine, p-nitrobenzoic acid monoethanolamine, sebacic acid, sebacic acid monoethanolamine, dodecenylsuccinic acid diethanolamine, Monoethanolamine Oleate, ten sodium hisbenzene sulfonates, 18 Phenylsulfonic acids, poly-alkoxyl group phosphoric acid ester diethanolamine, boric acid monoethanolamine or water-soluble boron acid esters;
The rust-preventive agent using in patent CN201110097484 is only the single ethanol ammonium salt of simple phosphoric acid;
In patent CN200710023703.6A and CN02146602.5A, also introduced the nitrite component of utilizing in organic acid and the composite alternative mineral-type of organic amine, reached antirust anti-rotten effect, and there is certain anti-yellowing spot effect.Wherein organic acid is C6-C14 Straight chain diatomic acid or C8-C12 lipid acid, p-tert-butyl benzoic acid, p-nitrobenzoic acid, C mono-phthalidyl amino acid derivative in the different ninth of the ten Heavenly Stems; Organic amine is Monoethanolamine MEA BASF or diethanolamine, trolamine, monoisopropanolamine, diisopropanolamine (DIPA), tri-isopropanolamine, beautiful jade, N-methyl beautiful jade, 2-amino-2-methyl-1-propanol etc.
Up to now, the environment friendly wet-leveling agent rustless property that prior art provides is general, iron filings filter paper rust prevention test under 1wt% concentration (JB/T 9189-1999 water material rust prevention test method cast iron powder method) is less than 15d conventionally, causes the coil of strip in the front storehouse of finishing to seal the time up for safekeeping shorter.Therefore in order to improve rustless property, the general concentration of using of wet smoothing agent that prior art provides is large (as 3wt%-5wt%), thereby makes cost higher.
Summary of the invention
Object of the present invention is exactly for above-mentioned defect, provides a kind of and can descend at lower concentration (1wt% concentration) the environmentally-friendly water-based wet-leveling liquid composite of use and good antirust property.
The technical solution adopted for the present invention to solve the technical problems is: a kind of wet-leveling liquid composite is provided, and its moiety and weight percent are as follows:
Wherein said composite antirust agent is the composite of tribasic carboxylic acid ammonium salt and polyphosphoric acid ammonium salt, and its weight percent is 1:3 ~ 5:1.
Described wet-leveling liquid composite also comprises the defoamer of 0.03 wt % ~ 0.3wt%.
Described tribasic carboxylic acid ammonium salt has following structure:
N=3 ~ 10 wherein.
Described polyphosphoric acid ammonium salt is by waiting four phosphoric acid of amount of substance at room temperature to react and make with trolamine.
Described organic phosphine inhibition sequestrant is selected from least one in 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, Amino Trimethylene Phosphonic Acid, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, ethylene diamine tetra methylene phosphonic acid sodium, ethylene diamine tetra methylene phosphonic acid, diethylene triamine pentamethylene phosphonic-HPAA, hexanediamine four methylenephosphonic acids, polyamino polyether base methylenephosphonic acid or two 1,6 hexylidene triamine five methylenephosphonic acids.
Described lubricant is selected from least one in oleic acid tri-isopropanolamine salt, triethanolamine oleate, polyoxyethylene oleic acid ester or alkyl epoxy ethyl group thiophosphatephosphorothioate.
Described tensio-active agent is selected from least one in Sodium dodecylbenzene sulfonate, sodium dodecyl aminopropionitrile, alkyl dimethyl betaine, polyoxyethylene nonylphenol ether, polyoxyethylene octylphenol ether or C12-C18 fatty alcohol-polyoxyethylene ether.
Described organic polyamine pH value conditioning agent is selected from least one in diethylenetriamine, triethylene tetramine, tetraethylene pentamine or hydroxyethylethylene diamine.
Described defoamer is selected from least one in polyethers, methyl-silicone oil, dimethyl silicone oil, hydroxy silicon oil, amido silicon oil or polydimethylsiloxane.
The electric conductivity of described deionized water is less than 5 μ S/cm.
In technique scheme, tribasic carboxylic acid ammonium salt and polyphosphoric acid ammonium salt when 1:3 ~ 5:1 is composite by weight percentage, have good rustless property;
The people that adds of lubricant can rolling load and the power consumption of reducing effect on roll, reduces roll change number of times, reduces the wearing and tearing of roll, makes surface of steel plate obtain stable and roughness uniformly;
Because the oxyhydroxide of iron does not dissolve in alkali, can on metallic surface, generate protective membrane, make in the etch ratio acidic solution of steel plate in alkaline solution little, therefore wet-leveling liquid composite should be alkalescence, but alkalescence can not be too high, too high value can be damaged people's skin and unfavorable to environment, so also need to add a certain amount of organic polyamine to regulate the pH value of wet-leveling liquid composite in wet-leveling liquid composite, is 9 ~ 11;
Tensio-active agent mainly plays cleanup action, and the present invention requires to add a small amount of tensio-active agent to reduce surface tension, improves the wettability of wet-leveling liquid composite to surface of steel plate, makes wet-leveling liquid composite fully wetting and evenly absorption at surface of steel plate.By test, also find in tensio-active agent, have many kinds to have rust inhibition concurrently simultaneously, through suitable apolegamy, can meet in flattening process process to steel plate had not only been had cleanup action, but also had the effect of inhibition;
Deionized water specific conductivity should be less than 5 μ S/cm, because contain the salts such as calcium sulfate, magnesium sulfate, Calcium hydrogen carbonate, Magnesium hydrogen carbonate and calcium chloride in hard water, if prepare wet-leveling liquid composite with hard water, these salt just easily form precipitation in solution, reduce the use properties of wet-leveling liquid composite, so preparation must be selected deionized water during wet-leveling liquid composite, and in deionized water, the concentration of sodium ion can not be large, because the increase of sodium can cause foam to produce.
The present invention compared with prior art, beneficial effect is: wet-leveling liquid composite provided by the present invention can substitute traditional containing nitrite type wet smoothing agent, not only environmental protection, also there is excellent rustless property, in the lower use of lower concentration (1wt% concentration), more than 0 grade of iron filings filter paper rust prevention test still can reach 20d, can greatly reduce the use cost of wet-leveling liquid composite.
Test for rust preventing ability method: by No. 120 industrial naptha washing secondaries for 2 grams of rustless cast iron filings, drain the rear rapid hot blast drying of using, be then laid in equably bottom and be placed with middle having drawn on the culture dish of 30mmX 30mm grid filter paper (wherein dividing the large lattice of 5mm * 5mm totally 36 lattice).With 2 milliliters of the liquid to be measured of pipette, extract certain mass concentration, be sprinkled upon equably on iron filings, cover culture dish, under room temperature, place certain hour and observe iron filings corrosion changing conditions, then with tap water, rinse out the iron filings on filter paper, with hot blast, filter paper is dried up, with reference to the antirust evaluation criteria inspection of table 1, the corrosion situation on evaluation filter paper.
Table 1
Embodiment
Below in conjunction with embodiment, the present invention is further described.
Polyphosphoric acid ammonium salt in all embodiment is at room temperature reacted with trolamine and is made by four phosphoric acid that wait amount of substance below, and tribasic carboxylic acid ammonium salt has following structure:
n=3 ~ 10 wherein.
Embodiment 1
By following moiety mix and blend as following weight percent, obtain product:
Above-described embodiment gained wet-leveling liquid composite furnishing 1wt% aqueous solution, 0 grade of 20d of iron filings rust prevention test.
Embodiment 2
By following moiety mix and blend as following weight percent, obtain product:
Above-described embodiment gained wet-leveling liquid composite furnishing 1wt% aqueous solution, 0 grade of 21d of iron filings rust prevention test.
Embodiment 3
By following moiety mix and blend as following weight percent, obtain product:
Above-described embodiment gained wet-leveling liquid composite furnishing 1wt% aqueous solution, 0 grade of 23d of iron filings rust prevention test.
Embodiment 4
By following moiety mix and blend as following weight percent, obtain product:
Above-described embodiment gained wet-leveling liquid composite furnishing 1wt% aqueous solution, 0 grade of 25d of iron filings rust prevention test.
Above embodiments of the invention are described; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not departing from the scope situation that aim of the present invention and claim protect, also can make a lot of forms, within these all belong to protection scope of the present invention.
Claims (7)
1. a wet-leveling liquid composite, is characterized in that, its moiety and weight percent are as follows:
Wherein said composite antirust agent is the composite of tribasic carboxylic acid ammonium salt and polyphosphoric acid ammonium salt, and its weight percent is 1:3～5:1;
Described polyphosphoric acid ammonium salt is at room temperature reacted with trolamine and is made by four phosphoric acid that wait amount of substance;
Described tribasic carboxylic acid ammonium salt has following structure:
N=3～10 wherein.
2. wet-leveling liquid composite according to claim 1, it is characterized in that, described organic phosphine inhibition sequestrant is selected from least one in 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, Amino Trimethylene Phosphonic Acid, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, ethylene diamine tetra methylene phosphonic acid sodium, ethylene diamine tetra methylene phosphonic acid, hexanediamine four methylenephosphonic acids, polyamino polyether base methylenephosphonic acid or two hexamethylene triamine five methylenephosphonic acids.
3. wet-leveling liquid composite according to claim 1, is characterized in that, described lubricant is selected from least one in oleic acid tri-isopropanolamine salt, triethanolamine oleate, polyoxyethylene oleic acid ester or alkyl epoxy ethyl group thiophosphatephosphorothioate.
4. wet-leveling liquid composite according to claim 1, is characterized in that, described tensio-active agent is selected from Sodium dodecylbenzene sulfonate, sodium dodecyl aminopropionitrile, alkyl dimethyl betaine, polyoxyethylene nonylphenol ether, polyoxyethylene octylphenol ether or C
12-C
18at least one in fatty alcohol-polyoxyethylene ether.
5. wet-leveling liquid composite according to claim 1, is characterized in that, described organic polyamine pH value conditioning agent is selected from least one in diethylenetriamine, triethylene tetramine, tetraethylene pentamine or hydroxyethylethylene diamine.
6. wet-leveling liquid composite according to claim 1, is characterized in that, described defoamer is selected from least one in polyethers, methyl-silicone oil, dimethyl silicone oil, hydroxy silicon oil, amido silicon oil or polydimethylsiloxane.
7. wet-leveling liquid composite according to claim 1, is characterized in that, the electric conductivity of described deionized water is less than 5 μ S/cm.
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Families Citing this family (11)
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| CN104194903A (en) * | 2014-07-31 | 2014-12-10 | 寿县维东建材商贸有限公司 | Anticorrosive concrete release agent and preparation method thereof |
| CN105506595A (en) * | 2015-12-21 | 2016-04-20 | 苏州伊电动力科技有限公司 | Production process of shell punching part |
| CN105802706A (en) * | 2016-01-04 | 2016-07-27 | 江苏凯普特动力机械有限公司 | Formula for protective oil liquid used for steel plate of engine hood |
| TWI636130B (en) * | 2017-12-12 | 2018-09-21 | 中國鋼鐵股份有限公司 | Wire rod lubricant and method for packing the wire rod by utilizing the same |
| CN108913322A (en) * | 2018-08-03 | 2018-11-30 | 湖南金裕环保科技有限公司 | Cold rolling station-service leveling precision, preparation method and its application method |
| CN109179699B (en) * | 2018-09-19 | 2020-10-09 | 宁夏神耀科技有限责任公司 | Combined scale inhibition and dispersion agent of coal gasification system and application method thereof |
| CN110066700A (en) * | 2019-05-30 | 2019-07-30 | 廊坊师范学院 | The preparation method of fully synthetic metalworking fluid |
| CN110644011A (en) * | 2019-10-30 | 2020-01-03 | 湖南金裕环保科技有限公司 | Steel plant continuous annealing line leveling liquid, preparation method and application thereof in steel leveling |
| CN112064050B (en) * | 2020-09-18 | 2021-09-24 | 广州三孚新材料科技股份有限公司 | Acidic degreasing agent for copper electroplating and preparation method thereof |
| CN114480007A (en) * | 2020-11-12 | 2022-05-13 | 联泓(江苏)新材料研究院有限公司 | Wet flattening liquid and preparation method and application thereof |
| CN115305142A (en) * | 2021-05-08 | 2022-11-08 | 中国石油化工股份有限公司 | Wet leveling liquid composition and preparation method and application thereof |
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