Titanium alloy rolling liquid composition and preparation method thereof

Abstract

The invention belongs to the field of titanium alloy rolling liquid, and particularly discloses a titanium alloy rolling liquid composition and a preparation method thereof. The titanium alloy rolling liquid composition comprises the following raw materials in parts by mass: 70-90 parts of base oil, 0.5-1.5 parts of an extreme pressure agent, 0.1-0.5 part of a corrosion inhibitor, 0.1-0.5 part of an antioxidant, 6-8 parts of an oiliness agent and 2-4 parts of an emulsifier, the oiliness agent comprises dimethoxyethyl phthalate, and the emulsifier comprises fatty alcohol polyoxyethylene ether polyether phosphate and tallow amine polyoxyethylene ether in a mass ratio of (0-10): (1-2): (0.7-1). The titanium alloy rolling liquid composition has good lubricity, emulsibility, high-temperature stability and cooling performance, is easy to clean and adjustable in cationic property, reduces the pattern phenomenon of a roller and abrasion of the roller and a plate in the rolling process, and can be applied to most working conditions.

Description

Technical Field

[0001] The invention belongs to the field of titanium alloy rolling liquid, and specifically relates to a titanium alloy rolling liquid composition and a preparation method thereof. Background Art

[0002] Titanium alloys have problems such as large deformation resistance, severe work hardening, severe roller wear, poor surface quality of rolled plates, and easy surface cracks during rolling, which results in high production cost and low production efficiency of titanium alloy rolled plates. In order to improve the above problems, rolling fluid is often added during the rolling process to improve lubricity, but a large amount of titanium powder will be generated during the rolling process of titanium alloy plates and strips. Since titanium powder is not magnetic, it cannot be removed by magnetic attraction. A large amount of titanium powder suspended in the rolling fluid is easily sprayed onto the plate and strip to be processed during the rolling process, which is not conducive to maintaining the smoothness and cleanliness of the plate and strip. Existing rolling fluids often cannot solve the above problems. At the same time, due to too many classifications of working conditions, they often face different requirements, and the applicability of existing rolling fluids is also subject to certain restrictions. In addition, due to the poor thermal conductivity of titanium alloys, a large amount of heat will be generated during the rolling process, which will increase the temperature of the titanium alloy. When the temperature of the titanium alloy is too high, severe work hardening will occur, which is not conducive to protecting the rollers and ensuring the rolling quality. The cooling performance and high temperature stability of existing rolling fluids are also facing challenges. Summary of the invention

[0003] The purpose of the present invention is to solve the deficiencies of the prior art and provide a rolling fluid with good lubrication performance, good emulsification performance, good high temperature stability, good cooling performance, easy cleaning and adjustable cationicity. Based on this, the first aspect of the present invention provides a titanium alloy rolling fluid composition, the raw materials of which include, by mass, 70-90 parts of base oil, 0.5-1.5 parts of extreme pressure agent, 0.1-0.5 parts of corrosion inhibitor, 0.1-0.5 parts of antioxidant, 6-8 parts of oiliness agent, and 2-4 parts of emulsifier; the oiliness agent includes dimethoxyethyl phthalate, and the emulsifier includes fatty alcohol polyoxyethylene ether polyether phosphate and tallow amine polyoxyethylene ether; the mass ratio of dimethoxyethyl phthalate, the fatty alcohol polyoxyethylene ether polyether phosphate and the tallow amine polyoxyethylene ether is (0-10): (1-2): (0.7-1).

[0004] The present invention achieves the effect of adjustable cationicity of titanium alloy rolling fluid by proposing the above-mentioned special composition system, thereby being able to cope with different actual production conditions; specifically, under the specific system of the present invention, by adjusting the three components of dimethoxyethyl phthalate, fatty alcohol polyoxyethylene ether polyether phosphate and tallow amine polyoxyethylene ether, the cationicity is controlled, thereby controlling the stability of the entire emulsified system and then controlling the precipitation of the rolling fluid during the rolling process to cope with different working conditions; for example, when the lubrication of the roller and the titanium alloy plate is insufficient in actual production, or when it is found that the emulsion When there is too much residual titanium powder, the dosage of dimethoxyethyl phthalate can be increased, which will lead to an increase in the cationic nature of the rolling fluid, thereby causing a decrease in the stability of the emulsion system, and further increase the amount of rolling fluid precipitated in the emulsion, thereby improving the lubrication performance and allowing the oil droplets in the emulsion system to precipitate titanium powder for easy cleaning in the skimming process; when patterns are found on the plate surface, the dosage of fatty alcohol polyoxyethylene ether polyether phosphate and tallow amine polyoxyethylene ether can be increased, which will lead to a decrease in the cationic nature of the rolling fluid, thereby causing an increase in the stability of the emulsion system, and further reduce the amount of rolling fluid precipitated in the emulsion.

[0005] In addition, the titanium alloy rolling fluid composition of the present invention also has good high-temperature stability and cooling performance, is stable without stratification and discoloration in a high-temperature environment, and can still be used normally at -35°C.

[0006] The extreme pressure agent is at least one of phosphate ester, ammonium phosphate salt and phosphoramide; preferably, the phosphate anti-wear agent NCL-2. By introducing the extreme pressure agent into the above-mentioned specific composition system, on the one hand, it can help to form a high melting point chemical reaction film on the metal surface under high temperature and high pressure boundary lubrication conditions, thereby effectively avoiding the fusion welding phenomenon between the roller and the plate surface under high temperature and high speed; on the other hand, it can also be better dissolved in the above-mentioned composition system and dispersed evenly; and the preferred extreme pressure agent has better effects.

[0007] In addition, since the extreme pressure agent needs to play a key role in a high temperature and high pressure environment, it is difficult to play a lubricating effect at room temperature and low load. The present invention introduces the above-mentioned oiliness agent, utilizes its polar group to be adsorbed on the metal friction surface, and forms a molecular oriented adsorption film to block the direct contact between the metals, thereby reducing friction and wear, and achieving the lubrication performance of the titanium alloy rolling process under conventional processing temperature conditions. The synergistic coordination of the above-mentioned oiliness agent and the above-mentioned extreme pressure agent well avoids the limitations of the single use of extreme pressure agent. Among them, the above-mentioned oiliness agent also includes at least one of cyclohexane oil, tall oil, castor oil, oxidized rapeseed oil, tetrapoly castor oil, sulfide olefins, sulfide fatty acid esters, active sulfur and coconut oil fatty acids. In some preferred embodiments, the above-mentioned oiliness agent also includes coconut oil fatty acids, sulfide fatty acid esters, sulfide lard and sulfide olefins in a mass ratio of 0.5:3:3:0.5.

[0008] At the same time, since some parts used in rolling mills contain copper, aluminum, iron, etc., if the above extreme pressure agent is added alone, it may cause certain corrosion to them. Therefore, the present invention introduces the above corrosion inhibitor to alleviate the above possible corrosion problem. Among them, the above corrosion inhibitor is at least one of mercaptobenzothiazole, benzotriazole, tolutriazole and tolutriazole sodium salt. In some preferred embodiments, the above corrosion inhibitor is octyl / butyl diphenylamine. The preferred corrosion inhibitor has better oil solubility and can be more stably dispersed in the above composition system.

[0009] Among them, the above-mentioned emulsifier also includes at least one of alkoxylated fatty alcohol, polysorbate, monooleic acid sorbitan ester, alcohol ether carboxylic acid and octylphenol polyoxyethylene ether. In some preferred embodiments, the above-mentioned emulsifier also includes octylphenol polyoxyethylene ether, and the mass ratio of the fatty alcohol polyoxyethylene ether polyether phosphate, the tallow amine polyoxyethylene ether and the octylphenol polyoxyethylene ether is (1-2): (0.7-1): 1. By introducing an emulsifier into the above-mentioned specific composition system, on the one hand, the system can form a stable emulsion for easy use, and on the other hand, it can also reduce the interfacial tension in the system, and it is easier to combine with water to produce an emulsion during the removal of the rolling liquid, thereby achieving good oil removal ability; and the above-mentioned preferred emulsifier composition has a better effect, and can also enhance hydrophilicity, which is conducive to the stability of the system.

[0010] The base oil is at least one of palm oil, 500SN, coconut oil, CTL6, CTL10 and 10# transformer oil. In some preferred embodiments, the base oil is composed of palm oil, 500SN and coconut oil. As a component with a relatively large proportion in the specific composition system of the present invention, the base oil also has a certain influence on the performance of the rolling fluid. The preferred base oil has better lubrication, cooling, sealing and cleaning effects on the one hand; on the other hand, it also has better solubility for other additives in the specific composition system, which can make the components dispersed more evenly.

[0011] The antioxidant is at least one of the reaction product of N-phenylaniline and 2,4,4-trimethylpentene, N-phenyl-α-naphthylamine, alkyl phenothiazine, alkyl diphenylamine, 2,6-di-tert-butyl-p-cresol and 2,6-di-tert-butylamino-p-cresol. In some preferred embodiments, the antioxidant is composed of alkyl diphenylamine and 2,6-di-tert-butylamino-p-cresol. By introducing an antioxidant into the above-mentioned specific composition system, it is possible to delay or inhibit the oxidation of phosphate esters, self-emulsifying esters, tall oil, etc. due to long-term high temperature conditions, which affects the life of the rolling fluid; and the preferred antioxidant not only has a better effect, but also can exist more stably in the above-mentioned composition system.

[0012] In some preferred embodiments, the titanium alloy rolling liquid composition further comprises 0.05-0.50 parts of an organic base. More preferably, the organic base is at least one of dicyclohexylamine, triethanolamine and ethanolamine. The inventors have found that in the above-mentioned specific composition system, by controlling the amount of the organic base, the pH value and particle size of the emulsified system can be affected, thereby affecting the stability of the emulsified system and the amount of rolling liquid precipitated, and ultimately achieving the same regulation of the cationicity of the rolling liquid; and the preferred organic base has a better effect, and also has the function of removing impurities and neutralizing effects, etc.

[0013] The second aspect of the present invention provides a method for preparing the above-mentioned titanium alloy rolling liquid composition, comprising the following steps: adding the extreme pressure agent, the corrosion inhibitor, the antioxidant and the oiliness agent to the base oil under the condition of 45°C-55°C, stirring until clear and transparent, then adding the remaining raw materials, and continuing to stir until clear and transparent to obtain the titanium alloy rolling liquid composition.

[0014] The beneficial effects of the present invention are as follows: the titanium alloy rolling fluid composition of the present invention has good lubricity, emulsification, high temperature stability and cooling properties, is easy to clean and has adjustable cationic properties, reduces the pattern phenomenon of the rolls and the wear of the rolls and plates during rolling, and can be applied to most working conditions. DETAILED DESCRIPTION

[0015] The following will be combined with the embodiments to clearly and completely describe the concept and technical effects of the present invention so as to fully understand the purpose, scheme and effect of the present invention. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0016] The following content involves some raw material information as follows:

[0017] 24° palm oil: Suzhou Fuzhiyuan Biotechnology Co., Ltd.;

[0018] 500SN: Foshan Jinjian;

[0019] Coconut oil: Yihai Kerry;

[0020] Phosphate antiwear agent NCL-2: Lubrizol, USA;

[0021] Octyl / butyl diphenylamine T557: Maoming Kaohsiung Petrochemical;

[0022] 2,6-di-tert-butylamino-p-cresol T501: Shanghai MacLean Biochemical Technology Co., Ltd.;

[0023] Alkyl diphenylamine L57: BASF;

[0024] Coconut oil fatty acid: Jinan Hongming;

[0025] Sulfurized fatty acid ester 2515: Shanghai Xirui;

[0026] Sulfurized lard 1310LV: Simin Oil;

[0027] Sulfurized olefin 2540: Rhein Chemie;

[0028] Fatty alcohol polyoxyethylene ether polyether phosphate AEO-3P: Lubrizol, USA;

[0029] Tallow amine polyoxyethylene ether T15: Shanghai Wenpu;

[0030] Octylphenol polyoxyethylene ether OP-4: Sasol, Germany;

[0031] Dimethoxyethyl phthalate T8230: Jiangsu Runfeng;

[0032] Dicyclohexylamine: Sasol, Germany.

[0033] Example 1

[0034] A titanium alloy rolling fluid composition, the raw materials of which include, by mass, 65.9 parts of 24° palm oil (base oil), 10.5 parts of 500SN (base oil), 12 parts of coconut oil (base oil), 1 part of phosphate antiwear agent NCL-2 (extreme pressure agent), 0.2 parts of octyl / butyl diphenylamine T557 (corrosion inhibitor), 0.2 parts of 2,6-di-tert-butylamino-p-cresol T501 (antioxidant), 0.2 parts of alkyl diphenylamine L57 (antioxidant), and 0.2 parts of 1,2-di-tert-butylamino-p-cresol. oxidant) 0.2 parts, coconut oil fatty acid (oily agent) 0.5 parts, sulfurized fatty acid ester 2515 (oily agent) 3 parts, sulfurized lard 1310LV (oily agent) 3 parts, sulfurized olefin 2540 (oily agent) 0.5 parts, fatty alcohol polyoxyethylene ether polyether phosphate ester AEO-3P (emulsifier) ​​1 part, tallow amine polyoxyethylene ether T15 (emulsifier) ​​1 part, octylphenol polyoxyethylene ether OP-4 (emulsifier) ​​1 part.

[0035] The preparation method of the titanium alloy rolling liquid composition comprises the following steps: mixing the base oil at 50° C., stirring until the solution is clear and transparent, then adding the extreme pressure agent, corrosion inhibitor, antioxidant and oiliness agent to the base oil, stirring until the solution is clear and transparent, then adding the remaining raw materials, and continuing to stir until the solution is clear and transparent to obtain the titanium alloy rolling liquid composition.

[0036] Example 2

[0037] A titanium alloy rolling liquid composition, which is basically the same as Example 1, except that:

[0038] (1) The raw materials also include 10 parts of dimethoxyethyl phthalate T8230 (oiliness agent);

[0039] (2) The weight portion of 24° palm oil (base oil) is 55.9 parts.

[0040] Example 3

[0041] A titanium alloy rolling liquid composition, which is basically the same as Example 1, except that:

[0042] (1) The raw materials also include 8 parts of dimethoxyethyl phthalate T8230 (oiliness agent);

[0043] (2) The weight portion of 24° palm oil (base oil) is 57.9 parts.

[0044] Example 4

[0045] A titanium alloy rolling liquid composition, which is basically the same as Example 1, except that:

[0046] (1) The weight portion of fatty alcohol polyoxyethylene ether polyether phosphate AEO-3P (emulsifier) ​​is 1.5 parts.

[0047] (2) The weight portion of 24° palm oil (base oil) is 65.4 parts.

[0048] Example 5

[0049] A titanium alloy rolling liquid composition, which is basically the same as Example 1, except that:

[0050] (1) The weight portion of fatty alcohol polyoxyethylene ether polyether phosphate AEO-3P (emulsifier) ​​is 2 parts.

[0051] (2) The weight portion of 24° palm oil (base oil) is 64.9 parts.

[0052] Example 6

[0053] A titanium alloy rolling liquid composition, which is basically the same as Example 1, except that:

[0054] (1) The weight portion of tallow amine polyoxyethylene ether T15 (emulsifier) ​​is 0.7 parts.

[0055] (2) The weight portion of 24° palm oil (base oil) is 66.2 parts.

[0056] Example 7

[0057] A titanium alloy rolling liquid composition is basically the same as that of Example 1, except that the raw materials further include 0.05 parts of dicyclohexylamine (organic base).

[0058] Example 8

[0059] A titanium alloy rolling liquid composition, which is basically the same as Example 7, except that the weight portion of dicyclohexylamine (organic base) is 0.20 parts.

[0060] Example 9

[0061] A titanium alloy rolling liquid composition is basically the same as Example 7, except that the weight portion of dicyclohexylamine (organic base) is 0.10 parts.

[0062] Example 10

[0063] A titanium alloy rolling liquid composition, which is basically the same as Example 7, except that the weight portion of dicyclohexylamine (organic base) is 0.50 parts.

[0064] Embodiment 11

[0065] A titanium alloy rolling liquid composition, which is basically the same as Example 7, except that the weight portion of dicyclohexylamine (organic base) is 0.15 parts.

[0066] Effect test

[0067] The properties of the titanium alloy rolling liquid compositions prepared in Examples 1-11 were tested using the following test methods:

[0068] (1) The test method for extreme pressure performance is carried out in accordance with GB / T12583-1998. Tester model: Xiamen Tianji MS-10A.

[0069] (2) The stability test and pH test were carried out in accordance with the industry standards SH / T 0579 and SH / T 0578.

[0070] (3) Particle size distribution was measured using a BT-9300S laser particle size analyzer.

[0071] The results are shown in Table 1, Table 2 and Table 3.

[0072] Table 1

[0073]

[0074] Table 2

[0075]

[0076] Table 3

[0077]

[0078] As shown in Tables 1 to 3, in the composition system of the present invention, by controlling the dosage of the three components of dimethoxyethyl phthalate T8230, fatty alcohol polyoxyethylene ether polyether phosphate AEO-3P and tallow amine polyoxyethylene ether T15, or controlling the dosage of dicyclohexylamine, the stability of the emulsified system can be adjusted, thereby affecting the precipitation amount of the rolling fluid, and then applied to different working conditions. For example, as shown in Table 3, as the amount of dicyclohexylamine added increases, the pH value of the emulsified system increases, the particle size increases, and at the same time, the more the emulsified system deviates from the center point 5.75, the larger the ESI increases, and the more stable the emulsified system is, thereby effectively reducing its cationicity.

[0079] The above effect can be used in at least the following two scenarios:

[0080] Firstly, the titanium alloy debris generated during the titanium alloy rolling process cannot be removed by magnetic attraction and other technical means, and these debris are easy to accumulate, and then easily leave patterns on the plate surface during the rolling process. The titanium alloy rolling liquid composition of the present invention can promote the precipitation and entrain the titanium alloy debris to float by improving the cationicity, thereby achieving the purpose of cleaning the titanium alloy debris.

[0081] Second, when excessive oily substances in the rolling fluid remain on the plate surface and are difficult to clean, the titanium alloy rolling fluid composition of the present invention can reduce the cationicity and precipitation by adjusting the dosage of the three components of dimethoxyethyl phthalate T8230, fatty alcohol polyoxyethylene ether polyether phosphate AEO-3P and tallow amine polyoxyethylene ether T15, or controlling the dosage of dicyclohexylamine, thereby better achieving the purpose of improving the cleanliness of the plate surface.

[0082] The above is only a preferred embodiment of the present invention. The present invention is not limited to the above implementation. As long as the technical effect of the present invention is achieved by the same means, it should belong to the protection scope of the present invention. Within the protection scope of the present invention, its technical scheme and / or implementation method can have various modifications and changes.

Claims

1. A titanium alloy rolling liquid composition, characterized in that: The raw materials include, by mass, 70-90 parts of base oil, 0.5-1.5 parts of extreme pressure agent, 0.1-0.5 parts of corrosion inhibitor, 0.1-0.5 parts of antioxidant, 6-8 parts of oiliness agent and 2-4 parts of emulsifier; the oiliness agent includes dimethoxyethyl phthalate, the emulsifier includes fatty alcohol polyoxyethylene ether polyether phosphate and tallow amine polyoxyethylene ether; the mass ratio of the dimethoxyethyl phthalate, the fatty alcohol polyoxyethylene ether polyether phosphate and the tallow amine polyoxyethylene ether is (0-10):(1-2):(0.7-1).

2. The titanium alloy rolling liquid composition according to claim 1, characterized in that: The oiliness agent further comprises at least one of naphthenic oil, tall oil, castor oil, oxidized rapeseed oil, tetramerized castor oil, sulphurized olefins, sulphurized fatty acid esters, active sulfur and coconut oil fatty acid.

3. The titanium alloy rolling liquid composition according to claim 2, characterized in that: The oiliness agent further comprises coconut oil fatty acid, sulfurized fatty acid ester, sulfurized lard and sulfurized olefin in a mass ratio of 0.5:3:3:0.

5.

4. The titanium alloy rolling liquid composition according to claim 1, characterized in that: The emulsifier further comprises at least one of alkoxylated fatty alcohols, polysorbates, sorbitan monooleate, alcohol ether carboxylic acids and octylphenol polyoxyethylene ethers.

5. The titanium alloy rolling liquid composition according to claim 4, characterized in that: The emulsifier also includes octylphenol polyoxyethylene ether, and the mass ratio of the fatty alcohol polyoxyethylene ether polyether phosphate, the tallow amine polyoxyethylene ether and the octylphenol polyoxyethylene ether is (1-2): (0.7-1):

1.

6. The titanium alloy rolling liquid composition according to claim 1, characterized in that: The base oil is at least one of palm oil, 500SN, coconut oil, CTL6, CTL10 and 10# transformer oil; and / or, the extreme pressure agent is at least one of phosphate ester, ammonium phosphate salt and phosphoramide; and / or, the corrosion inhibitor is at least one of mercaptobenzothiazole, benzotriazole, methylbenzotriazole and methylbenzotriazole sodium salt; and / or, the antioxidant is at least one of the reaction product of N-phenylaniline and 2,4,4-trimethylpentene, N-phenyl-α-naphthylamine, alkyl phenothiazine, alkyl diphenylamine, 2,6-di-tert-butyl-p-cresol and 2,6-di-tert-butylamino-p-cresol.

7. The titanium alloy rolling liquid composition according to claim 6, characterized in that: The base oil consists of palm oil, 500SN and coconut oil; and / or, the extreme pressure agent is phosphate antiwear agent NCL-2; and / or, the corrosion inhibitor is octyl / butyl diphenylamine; and / or, the antioxidant consists of alkyl diphenylamine and 2,6-di-tert-butylamino-p-cresol.

8. The titanium alloy rolling liquid composition according to any one of claims 1 to 7, characterized in that: The raw materials also include 0.05-0.50 parts of organic base.

9. The titanium alloy rolling liquid composition according to claim 8, characterized in that: The organic base is at least one of dicyclohexylamine, triethanolamine and ethanolamine.

10. A method for preparing the titanium alloy rolling liquid composition according to any one of claims 1 to 9, characterized in that: The following steps are involved: The extreme pressure agent, the corrosion inhibitor, the antioxidant and the oiliness agent are added to the base oil at 45°C-55°C, stirred until clear and transparent, and then the remaining raw materials are added, and stirring is continued until clear and transparent to obtain the titanium alloy rolling liquid composition.

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