CN114921788B - Antirust composition material for hot-rolled pickled plate and application method thereof - Google Patents
Antirust composition material for hot-rolled pickled plate and application method thereof Download PDFInfo
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- CN114921788B CN114921788B CN202210856457.7A CN202210856457A CN114921788B CN 114921788 B CN114921788 B CN 114921788B CN 202210856457 A CN202210856457 A CN 202210856457A CN 114921788 B CN114921788 B CN 114921788B
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
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Abstract
An antirust composition material for hot-rolled pickled plates and a using method thereof belong to the technical field of surface treatment of hot-rolled pickled plates. The prior hot-rolled pickled plate antirust process can generate an unremovable passivation type conversion film on the plate surface to influence the subsequent processing surface state, or the plate surface residue causes the subsequent rolling to generate a demulsification phenomenon, so that the requirements of the subsequent rolling procedure can not be met. The raw materials of the antirust composition material for the hot-rolled pickled plate comprise 8-15 wt% of organic alcohol amine, 5-8 wt% of organic carboxylic acid, 5-15 wt% of organic borate, 0.5-1.5 wt% of complexing agent, 5-10 wt% of triazine amino acid ester and 1-5 wt% of water-based amide corrosion inhibitor, so that the hot-rolled pickled plate can be placed between pickling procedures to play a better antirust and anticorrosion role in a medium-short period; and the subsequent emulsion is well enhanced, so that the time and energy are saved in the rolling process.
Description
Technical Field
An antirust composition material for hot-rolled pickled plates and a using method thereof belong to the technical field of surface treatment of hot-rolled pickled plates.
Background
The hot-rolled pickled sheet generally refers to a hot-rolled steel sheet which needs to be pickled, and is usually subjected to cold rolling. The hot-rolled pickled plate is easy to rust when contacting with air due to the property of carbon steel of the hot-rolled pickled plate, and particularly after the pickling process, the hot-rolled pickled plate is placed in an acid rolling workshop in a high acid mist environment and is influenced by acid mist in the pickling environment to rust more quickly, so that middle-short period rust prevention is very necessary.
Two types of rust prevention processes are commonly used at present: the rust prevention by coating rust preventive oil and the rust prevention by alkaline nitrite solution have excellent rust prevention effect, but the defects are obvious, such as: the environmental protection property is poor, the environment and the human health are damaged, and the nitrite is carried to the cold rolling emulsion along with the plate surface, so that the emulsion breaking of the emulsion is caused, and serious quality accidents occur. The rust-proof process of the related environmental protection without obvious side effect is reported, the aqueous acid pickling plate rust-proof composition disclosed in the individual patent such as CN201710958112.1 contains a large amount of inorganic salt, a non-removable passivation type conversion film is generated on the plate surface to influence the subsequent processing surface state, and the inorganic salt is a strong electrolyte, so that the conductivity of the cold rolling emulsion is increased to cause emulsion breaking accidents, and the requirements of the subsequent rolling process cannot be met.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: overcomes the defects of the prior art, and provides an antirust composition material for hot-rolled pickled plates, which can provide excellent medium-short term antirust effect for the hot-rolled pickled plates and can make the surface of the plate film, and has positive effect on the subsequent rolling process, and a using method thereof.
The technical scheme adopted by the invention for solving the technical problems is as follows: the antirust composition material for the hot-rolled pickled plate comprises, by weight, 8-15% of organic alcohol amine, 5-8% of organic carboxylic acid, 5-15% of organic borate and 0.5-1.5% of a complexing agent, and is characterized in that: the raw materials also comprise 5 to 10wt% of triazine amino acid ester, 1 to 5wt% of water-based amide corrosion inhibitor and the balance of water.
On the basis of common antirust components, namely organic alcohol amine, organic carboxylic acid and organic boric acid ester, a triazine amino acid ester and a water-based amide corrosion inhibitor are added, except the antirust effect of the triazine amino acid ester and the anticorrosion effect of the water-based amide corrosion inhibitor, the conjugate effect of a triazine ring and an amide group is mainly utilized, a layer of compact protective film can be rapidly formed on the surface of a base metal, the speed is high, the adsorption film is compact, the base metal is fully wrapped, and air or acid mist in an acid pickling process is completely isolated, so that the hot-rolled acid pickling plate can be placed between acid pickling processes to play a better antirust and anticorrosion role in a medium-short period by matching with the basic antirust components; in addition, the triazine amino acid ester and the water-based amide corrosion inhibitor have film forming properties and can form a compact film under the synergistic action, both can form a good lubricating effect on the surface of a base metal, and have extremely high extreme pressure property, in a downstream cold rolling process, emulsion breaking of an emulsion rolling liquid is avoided, a good reinforcing effect is achieved, the adsorption film cannot be extruded under extrusion to rub the surface, and therefore the lubricating effect is better, and the lubricated hot-rolled pickled plate is more time-saving, labor-saving and energy-saving in the rolling process.
The preparation method of the antirust composition material for the hot-rolled pickled plate comprises the following steps:
(1) Taking 15-25 wt% of the total water in the formula, adding organic alcohol amine into the water, and stirring and dissolving until the solution is transparent to obtain a solution A;
(2) Adding a complexing agent into the solution A while stirring for neutralization reaction, simultaneously heating the solution to 40 to 60 ℃, and reacting until the solution is clear and transparent to obtain a solution B;
(3) Slowly adding organic carboxylic acid into the solution B while stirring, reacting until the solution B is clear and transparent, stopping heat preservation to obtain a solution C;
(4) And adding the balance of water into the solution C, stirring while sequentially adding the organic borate, the triazine amino acid ester and the water-based amide corrosion inhibitor into the solution C when the temperature is lower than 40 ℃, and stirring until the solution is uniform and transparent, and then discharging.
The principle of first reaction and then compounding is preferably adopted, so that after the reaction of the basic antirust components is finished, the triazine amino acid ester and the water-based amide corrosion inhibitor are added, the reaction of the triazine ring and the amide group can be protected as much as possible to form a film, and the final antirust and anticorrosive effects are ensured.
Preferably, the aqueous amide corrosion inhibitor is one or a mixture of several of coconut oil amide, tall oil amide, oleic acid amide and water-soluble imidazoline amide in any proportion.
The preferable aqueous amide corrosion inhibitor has better coordination effect with triazine amino acid ester, faster reaction speed, higher film forming efficiency, more compactness and better protection effect on base metal.
Preferably, the organic alcohol amine is one or a mixture of several of monoethanolamine, diethanolamine, triethanolamine, diglycolamine, methyl alcohol amine and isopropanolamine in any proportion.
The optimized organic alcohol amine and the formed compact adsorption film have good matching effect, and the antirust effect can be effectively improved.
Preferably, the organic carboxylic acid is one or a mixture of several of isononanoic acid, sebacic acid, undecanedioic acid, dodecanedioic acid, benzoic acid, phthalic acid and cinnamic acid in any proportion.
The preferable organic carboxylic acid, the organic alcohol amine and the compact film have better matching effect and higher antirust effect.
Preferably, the organoborate is triethanolamine borate.
The triethanolamine borate, the organic alcohol amine and the compact film have better matching effect and higher antirust effect.
Preferably, the complexing agent is one or a mixture of more of hydroxyethylidene diphosphonic acid, ethylene diamine tetraacetic acid, hydroxymethyl oxosuccinic acid and gluconic acid in any proportion.
The use method of the antirust composition material for the hot-rolled pickled plate is characterized by comprising the following steps: the antirust composition material for the hot-rolled pickled plate is added into final rinsing water of the hot-rolled pickled plate pickling rinsing process section, is circularly and uniformly stirred, and is subjected to final rinsing.
The triazine ring and the amide group can quickly form a compact adsorption film, and the compact adsorption film is directly mixed into final-stage rinsing water to rinse a hot-rolled pickled plate, so that a compact protective film can be formed on the surface of a base material, and the method is convenient to use, good in protection effect and high in production efficiency.
More preferably, the electric conductivity of the mixed solution of the rust-preventive composition material for hot-rolled pickled plate and the final rinse water is 1000. Mu.s/cm or less.
Under the preferred conductivity, the treated hot-rolled pickled plate enters the downstream rolling liquid, so that the influence on the demulsification of the rolling liquid is smaller, and the rolling process is facilitated.
More preferably, the content of the rust-preventive composition material for hot-rolled pickled plates in the final rinsing water is 2wt%.
Can achieve better rust-proof and corrosion-proof effects under the optimal concentration, has higher reinforcing effect on the downstream rolling process, and avoids waste.
Preferably, the final rinsing method comprises the steps of spraying, squeezing and hot air drying in sequence.
Owing to the triazine ring and the amide group can quickly form a compact adsorption film, the rapid film forming can be realized by spraying, the water absorption capacity of the surface of the base material is less, the squeezing and drying are easier, and the moisture is prevented from being brought into downstream rolling liquid.
Compared with the prior art, the invention has the following beneficial effects: by utilizing the synergistic effect of the triazine amino acid ester and the aqueous amide corrosion inhibitor, a compact adsorption film can be quickly formed on the surface of the base material to isolate air and acid mist, so that the excellent rust prevention and corrosion prevention effects in medium and short periods can be achieved, the corrosion prevention agent is particularly suitable for a pickling workshop where hot-rolled pickled plates are frequently placed, the protection film is not easy to damage in an acid environment, the protection film cannot be easily damaged in the mutual stacking process, the protection effect is more stable, and meanwhile, excellent lubricity and extreme pressure property are provided for the surface of the base material, so that the subsequent rolling process is facilitated, and multiple purposes are achieved at one stroke.
Detailed Description
The present invention will be further described with reference to the following examples, in which example 1 is a preferred embodiment of the present invention.
Example 1
The antirust composition material for hot-rolled pickled plate is prepared with triethanolamine 11wt%, benzoic acid 7wt%, triethanolamine borate 10wt%, hydroxyl ethylidene diphosphonic acid 1wt%, triazine amino acid ester 7.5wt%, coconut oil amide 3wt% and water 60.5wt%.
The preparation method of the antirust composition material for the hot-rolled pickled plate comprises the following steps:
(1) Firstly, taking 20wt% of the total weight of water in the formula, adding triethanolamine into the taken water, stirring and dissolving until the solution is transparent to obtain a solution A;
(2) Adding hydroxyethylidene diphosphonic acid into the solution A while stirring for neutralization reaction, simultaneously heating the solution to 50 ℃, and reacting until the solution is clear and transparent to obtain a solution B;
(3) Slowly adding benzoic acid into the solution B while stirring, reacting until the solution B is clear and transparent, stopping heat preservation to obtain a solution C;
(4) And adding the balance of water into the solution C, stirring while sequentially adding triethanolamine borate, triazine amino acid ester and coconut oil amide into the solution C when the temperature is lower than 40 ℃, and stirring until the solution is uniform and transparent, and then discharging.
The use method of the antirust composition material for the hot-rolled pickled plate comprises the following steps: adding the antirust composition material for the hot-rolled pickled plate into final rinsing water of a pickling and rinsing process section of the hot-rolled pickled plate to prepare antirust working solution, wherein the content of the antirust composition material for the hot-rolled pickled plate in the antirust working solution is 2wt%, spraying, squeezing and drying with hot air at normal temperature (without heating) to complete antirust treatment, and overlapping three sheets and placing in a temporary storage area of a pickling process room.
Example 2
A rust-proof composition material for a hot-rolled pickled plate is prepared by replacing coconut oil amide with tall oil amide on the basis of example 1, performing rust-proof treatment under the same conditions as example 1 and using the same method as example 1, and placing three pieces of the rust-proof composition material in a temporary storage area of a pickling process room in an overlapping manner.
Example 3
A rust-proof composition material for hot-rolled pickled plates is prepared by replacing cocoamide with water-soluble imidazoline amide on the basis of example 1, performing rust-proof treatment on the cocoamide except for the conditions the same as those of example 1 and by using the cocoamide in the same manner as that of example 1, and placing three pieces of the cocoamide in a temporary storage area between pickling processes in an overlapping manner.
Example 4
A rust-preventive composition material for hot-rolled pickled plate, based on example 1, having a triazine amino acid ester content of 5wt% and a coconut oil amide content of 1wt%, was prepared in the same manner as in example 1 except for the same conditions as in example 1, and subjected to rust-preventive treatment in the same manner as in example 1, and three sheets were stacked in a temporary storage area between pickling steps.
Example 5
A rust-preventive composition material for hot-rolled pickled plate, which had a triazine amino acid ester content of 10% by weight based on example 1, was prepared in the same manner as in example 1 except that the conditions were the same as in example 1, and the rust-preventive treatment was carried out by placing three sheets in a temporary storage area between pickling processes in an overlapping manner.
Example 6
A rust preventive composition material for a hot-rolled pickled plate, which was prepared in the same manner as in example 1 except that the content of cocamide was set to 5% by weight based on example 1 and the other conditions were the same as in example 1, was subjected to rust preventive treatment in the same manner as in example 1, and three pieces of the composition material were stacked and placed in a temporary storage area between pickling processes.
Example 7
The antirust composition material for the hot-rolled pickled plate is prepared from 8wt% of triethanolamine, 5wt% of benzoic acid, 15wt% of triethanolamine borate, 1wt% of hydroxyethylidene diphosphonic acid, 7.5wt% of triazine amino acid ester, 3wt% of coconut oil amide and 60.5wt% of water on the basis of example 1. The other conditions were the same as in example 1, the arrangement method and the use method were the same as in example 1, rust-proofing treatment was performed, and three sheets were stacked and placed in the temporary storage section between the pickling processes.
Example 8
The antirust composition material for the hot-rolled pickled plate is prepared from 15wt% of triethanolamine, 8wt% of benzoic acid, 5wt% of triethanolamine borate, 1wt% of hydroxyethylidene diphosphonic acid, 7.5wt% of triazine amino acid ester, 3wt% of coconut oil amide and 60.5wt% of water on the basis of example 1. The other conditions were the same as in example 1, the arrangement method and the use method were the same as in example 1, rust-proofing treatment was performed, and three sheets were stacked and placed in the temporary storage section between the pickling processes.
Example 9
An antirust composition material for hot-rolled pickled plates is prepared from 8wt% of triethanolamine, 5wt% of benzoic acid, 15wt% of triethanolamine borate, 0.5wt% of hydroxyethylidene diphosphonic acid, 7.5wt% of triazine amino acid ester, 5wt% of coconut oil amide and 59wt% of water, based on example 1. The other conditions were the same as in example 1, the arrangement method and the use method were the same as in example 1, rust-proofing treatment was performed, and three sheets were stacked and placed in the temporary storage section between the pickling processes.
Example 10
An antirust composition material for hot-rolled pickled plates is prepared by replacing triethanolamine with diglycolamine in example 1 under the same conditions as in example 1, performing antirust treatment in the same manner as in example 1, and stacking three sheets in a temporary storage area between pickling steps.
Example 11
An antirust composition material for hot-rolled pickled plates, which is prepared by replacing triethanolamine with: the weight ratio of the methylethanolamine to the isopropanolamine is 1: the mixture of 1 was subjected to rust-proofing treatment in the same manner as in example 1 except that the other conditions were the same as in example 1 and the preparation method and the use method were the same as in example 1, and three sheets were stacked and placed in a temporary storage area between pickling processes.
Example 12
An antirust composition material for hot-rolled pickled plates is prepared by replacing triethanolamine with methyl ethanolamine in example 1, performing antirust treatment in the same manner as in example 1 except for the same conditions as in example 1, and stacking three sheets in a temporary storage area between pickling processes.
Example 13
An antirust composition material for a hot-rolled pickled plate is prepared by replacing benzoic acid with isononanoic acid and cinnamic acid in a weight ratio of 1: the mixture of 1 was subjected to rust-proofing treatment in the same manner as in example 1 except that the other conditions were the same as in example 1, and three sheets were stacked and placed in a temporary storage area between pickling processes.
Example 14
An antirust composition material for a hot-rolled pickled plate is prepared by replacing benzoic acid with sebacic acid and undecanedioic acid in a weight ratio of 1: the mixture of 1 was subjected to rust-proofing treatment in the same manner as in example 1 except that the other conditions were the same as in example 1, and three sheets were stacked and placed in a temporary storage area between pickling processes.
Example 15
An antirust composition material for a hot-rolled pickled plate is prepared by replacing benzoic acid with dodecanedioic acid and phthalic acid in a weight ratio of 1: the mixture of 1 was subjected to rust-proofing treatment in the same manner as in example 1 except that the other conditions were the same as in example 1, and three sheets were stacked and placed in a temporary storage area between pickling processes.
Example 16
An antirust composition material for a hot-rolled pickled plate is prepared by replacing hydroxyethylidene diphosphonic acid with ethylenediamine tetraacetic acid and hydroxymethyl oxosuccinic acid according to the weight ratio of 1: the mixture of 1 was subjected to rust-proofing treatment in the same manner as in example 1 except that the other conditions were the same as in example 1, and three sheets were stacked and placed in a temporary storage area between pickling processes.
Example 17
An antirust composition material for hot-rolled pickled plates is prepared by replacing hydroxyethylidene diphosphonic acid with gluconic acid in the same manner as in example 1 except that the composition is prepared in the same manner as in example 1, and performing antirust treatment by placing three sheets in a temporary storage area between pickling processes in an overlapping manner.
Comparative example 1
A rust-preventive composition material for hot-rolled pickled plate, which is prepared by setting triazine amino acid ester content to 10wt% based on example 1, not adding coconut oil amide, performing rust-preventive treatment under the same conditions as in example 1, using the same method as in example 1, and placing three sheets in a temporary storage area between pickling processes in a stacked manner.
Comparative example 2
A rust-preventive composition material for hot-rolled pickled plate, which is prepared by setting the coconut oil amide content to 8wt% on the basis of example 1, not providing triazine amino acid ester, performing rust-preventive treatment under the same conditions as in example 1, using the same method as in example 1, and placing three sheets in a temporary storage area between pickling steps in a stacked manner.
Comparative example 3
A rust-preventive composition material for hot-rolled pickled plates, based on example 1, having a coconut amide content of 5wt% and a triazine amino acid ester content of 4wt%, was prepared by using the same method as in example 1, except that the rust-preventive composition material for hot-rolled pickled plates was used in an amount of 3wt%, and the rust-preventive treatment was carried out by placing three sheets in a temporary storage area between pickling steps in a stacked manner.
Comparative example 4
An antirust composition material for a hot-rolled pickled plate is prepared by setting 10wt% of benzoic acid and 15wt% of triethanolamine borate without setting triethanolamine on the basis of example 1, setting the other conditions to be the same as example 1, completing antirust treatment by the same configuration method and use method as example 1, and placing three pieces in a temporary storage area between pickling processes in an overlapping manner.
Comparative example 5
A rust preventive composition material for hot-rolled pickled plate, which is prepared by stacking three sheets in the temporary storage area between pickling processes, except that a triazine amino acid ester and a coconut oil amide are not provided in example 1, the other conditions are the same as in example 1, the preparation method and the use method are the same as in example 1, and rust preventive treatment is performed.
Performance test
The antirust property: i, accelerated corrosion test (the test method refers to standard JB/T9189-1999, the rust prevention grade is less than or equal to 1 grade, namely 0 grade or 1 grade), and the hot-rolled pickled plate obtained in the embodiment and the comparative example and treated by the rust prevention composition material for the hot-rolled pickled plate is subjected to the test; and II, corrosion environment exposure test (the samples are placed in a temporary storage area between pickling processes, and the existence or the quantity of rusty spots on the surfaces of the samples is observed for more than 7 days).
And (3) testing the lubricating capability: a four-ball friction testing machine is adopted, the maximum seizure-free load capacity test is carried out after the antirust composition material for the hot-rolled pickled plate is prepared into rolling liquid (the lubricating capacity is stronger when the Pb value is increased), and the content of the antirust composition material for the hot-rolled pickled plate is 2wt%.
The results of the performance testing are shown in table 1 below.
TABLE 1 Performance test results
According to the performance test results in table 1, it can be seen from comparison between comparative examples 1 and 2 and example 1 that a specific coordination function is provided between the triazine amino acid ester and the aqueous amide corrosion inhibitor, so that the rust prevention and corrosion prevention functions can be improved, acid mist in an acid pickling process can be effectively isolated, base metal can be protected, a higher lubrication effect can be provided, the subsequent rolling process can be effectively enhanced, and the rolling time and cost can be saved. In comparative example 5, any one of the triazine amino acid ester and the aqueous amide corrosion inhibitor is not added, and according to the final comparative example result, the results are similar to those of comparative examples 1 and 2, namely, the final effects are similar to those of the triazine amino acid ester and the aqueous amide corrosion inhibitor only with or without adding one of the triazine amino acid ester and the aqueous amide corrosion inhibitor, and no obvious rust prevention and lubrication effects can be achieved, and meanwhile, the triazine amino acid ester and the aqueous amide corrosion inhibitor with specific amounts can achieve a good synergistic effect, and provide obvious rust prevention and lubrication effects.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention will still fall within the protection scope of the technical solution of the present invention.
Claims (4)
1. The antirust composition material for the hot-rolled pickled plate comprises, by weight, 8-15% of organic alcohol amine, 5-8% of organic carboxylic acid, 5-15% of organic borate and 0.5-1.5% of a complexing agent, and is characterized in that: the raw materials also comprise 5 to 10wt% of triazine amino acid ester, 1 to 5wt% of water-based amide corrosion inhibitor and the balance of water;
the water-based amide corrosion inhibitor is one or a mixture of more of coconut oil amide, tall oil amide, oleic acid amide and water-soluble imidazoline amide in any proportion;
the organic alcohol amine is one or a mixture of more of monoethanolamine, diethanolamine, triethanolamine, diglycolamine, methyl alcohol amine and isopropanolamine in any proportion;
the organic carboxylic acid is one or a mixture of more of isononanoic acid, sebacic acid, undecanedioic acid, dodecanedioic acid, benzoic acid, phthalic acid and cinnamic acid in any proportion;
the organic borate is triethanolamine borate;
the complexing agent is one or a mixture of more of hydroxyethylidene diphosphonic acid, ethylene diamine tetraacetic acid, hydroxymethyl oxosuccinic acid and gluconic acid in any proportion.
2. The method of using the rust inhibitive composition material for hot-rolled pickled plate according to claim 1, wherein: adding the antirust composition material for the hot-rolled pickled plate into final rinsing water of a hot-rolled pickled plate pickling rinsing process section, circularly stirring uniformly, and carrying out final rinsing on the hot-rolled pickled plate.
3. The method of using a hot-rolled pickled plate anticorrosive composition material according to claim 2, characterized in that: the material content of the hot-rolled pickled plate antirust composition in the final-stage rinsing water is 2wt%.
4. The method of using the rust inhibitive composition material for hot-rolled pickled plate according to claim 2, wherein: the final rinsing method comprises the steps of spraying, squeezing and hot air drying in sequence.
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| CN106048617A (en) * | 2016-05-31 | 2016-10-26 | 梁红 | Metal antirust agent |
| CN107723695A (en) * | 2017-10-16 | 2018-02-23 | 辽宁科技大学 | A kind of hot rolling acid-cleaning steel plate water-based antirust and preparation method thereof |
| CN107699139A (en) * | 2017-11-03 | 2018-02-16 | 辽宁宝瑞科技有限公司 | A kind of super lapping liquid composition of water base environment-friendly antirust type and preparation and application |
| CN111206250A (en) * | 2020-01-20 | 2020-05-29 | 青岛科技大学 | Mixed amide type water-based gas-phase antirust concentrated solution and preparation and use methods thereof |
| CN111321413A (en) * | 2020-03-03 | 2020-06-23 | 青岛科技大学 | Water-based gas-phase antirust concentrated solution and preparation and use methods thereof |
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