Titanium alloy rolling fluid composition and method of making

Abstract

The application belongs to the field of titanium alloy rolling liquid, and particularly discloses a titanium alloy rolling liquid composition and a preparation method thereof.The raw materials of the titanium alloy rolling liquid composition include, in mass parts, 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 mass ratio of dimethoxy ethyl phthalate included in the oiliness agent, fatty alcohol polyoxyethylene ether polyether phosphate included in the emulsifier, and tallow amine polyoxyethylene ether is (0-10):(1-2):(0.7-1).The titanium alloy rolling liquid composition has good lubricity, emulsification, high-temperature stability, and cooling property, is easy to clean, and has adjustable cationicity, reduces the pattern phenomenon of the roll and the wear of the roll and the plate during the rolling process, and can be applied to most working conditions.

Description

Technical Field

[0001] This invention belongs to the field of titanium alloy rolling fluid, specifically relating to a titanium alloy rolling fluid composition and its preparation method. Background Technology

[0002] Titanium alloys suffer from high deformation resistance, severe work hardening, severe roll wear, poor surface quality, and susceptibility to surface cracks during rolling, resulting in high production costs and low efficiency. To address these issues, rolling fluids are often added to improve lubrication. However, this process generates a large amount of titanium powder, which, being non-magnetic, cannot be removed magnetically. The large amount of powder suspended in the rolling fluid is easily sprayed onto the strip during rolling, hindering its smoothness and cleanliness. Existing rolling fluids often fail to solve these problems, and their applicability is limited by the diverse operating conditions and varying requirements. Furthermore, the poor thermal conductivity of titanium alloys generates significant heat during rolling, causing excessive work hardening, which is detrimental to roll protection and rolling quality. The cooling performance and high-temperature stability of existing rolling fluids also face challenges. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings 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, a first aspect of this invention provides a titanium alloy rolling fluid composition, the raw materials of which, by mass, include: 70-90 parts base oil, 0.5-1.5 parts extreme pressure agent, 0.1-0.5 parts corrosion inhibitor, 0.1-0.5 parts antioxidant, 6-8 parts oiliness agent, and 2-4 parts 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, fatty alcohol polyoxyethylene ether polyether phosphate, and tallow amine polyoxyethylene ether is (0-10):(1-2):(0.7-1).

[0004] This invention, by proposing the aforementioned specific composition system, achieves adjustable cationicity in titanium alloy rolling fluid, thereby enabling it to cope with different actual production conditions. Specifically, within the specific system of this invention, by adjusting the three components—dimethoxyethyl phthalate, fatty alcohol polyoxyethylene ether polyether phosphate, and tallow amine polyoxyethylene ether—cationicity is controlled, thereby controlling the stability of the entire emulsion system and controlling the precipitation of the rolling fluid during the rolling process, to cope with different operating conditions. For example, when there is insufficient lubrication between the rolls and the titanium alloy plate in actual production, or when precipitation is found in the emulsion... When there is excessive titanium powder residue, increasing the amount of dimethoxyethyl phthalate can enhance the cationicity of the rolling fluid, thereby reducing the stability of the emulsion system. This, in turn, increases the amount of rolling fluid precipitated in the emulsion, improving lubrication performance and allowing oil droplets in the emulsion to carry titanium powder out for easier skimming. When patterns appear on the plate surface, increasing the amount of fatty alcohol polyoxyethylene ether polyether phosphate and tallow amine polyoxyethylene ether can reduce the cationicity of the rolling fluid, thereby increasing the stability of the emulsion system and reducing 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, and is stable without delamination or discoloration in high-temperature environments, while still being usable at -35 ℃.

[0006] The extreme pressure agent is at least one of phosphate ester, ammonium phosphate ester, and phosphoramide; preferably, the phosphate ester 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 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 welding phenomenon between the roll and the plate surface under high temperature and high speed; on the other hand, it can also be better dissolved and dispersed evenly in the above composition system; and the preferred extreme pressure agent has even better effects.

[0007] Furthermore, since extreme pressure agents only play a crucial role under high temperature and high pressure environments, they are difficult to lubricate under normal temperature and low load conditions. This invention, by introducing the aforementioned oily agent, utilizes its polar groups to adsorb onto the metal friction surfaces, forming a molecularly oriented adsorption film that blocks direct contact between metals, thereby reducing friction and wear. This ensures lubrication performance during the titanium alloy rolling process under normal processing temperatures. The synergistic effect of the oily agent and the extreme pressure agent effectively avoids the limitations of using an extreme pressure agent alone. The oily agent further includes at least one of naphthenic oil, tall oil, castor oil, oxidized rapeseed oil, tetrameric castor oil, sulfurized olefins, sulfurized fatty acid esters, active sulfur, and coconut oil fatty acids. In some preferred embodiments, the oily agent further includes coconut oil fatty acids, sulfurized fatty acid esters, sulfurized lard, and sulfurized olefins in a mass ratio of 0.5:3:3:0.5.

[0008] Meanwhile, since some components used in rolling mills contain copper, aluminum, iron, etc., adding the aforementioned extreme pressure agents alone may cause corrosion. Therefore, this invention alleviates the potential corrosion problem by introducing the aforementioned corrosion inhibitors. The corrosion inhibitors are at least one selected from mercaptobenzothiazole, benzotriazole, methylbenzotriazole, and sodium methylbenzotriazole. In some preferred embodiments, the corrosion inhibitor is octyl / butyldiphenylamine. Preferred corrosion inhibitors have better oil solubility and can be more stably dispersed in the aforementioned composition system.

[0009] The emulsifier further includes at least one of alkoxylated fatty alcohols, polysorbates, monooleic sorbitol esters, alcohol ether carboxylic acids, and octylphenol polyoxyethylene ether. In some preferred embodiments, the emulsifier further 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; on the other hand, it can reduce the interfacial tension in the system, making it easier to combine with water to form an emulsion during the removal of the rolling fluid, thereby achieving good oil removal ability. The above-mentioned preferred emulsifier composition has better effects and can also enhance hydrophilicity, which helps stabilize the system.

[0010] The base oil is at least one selected from 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 large proportion in the specific composition system of this 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 other hand, it also has better solubility for other additives in the specific composition system, enabling more uniform dispersion of the components.

[0011] The antioxidant is at least one selected from the reaction product of N-phenylaniline and 2,4,4-trimethylpentene, N-phenyl-α-naphthylamine, alkylphenthiazide, 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 antioxidants into the above-mentioned specific composition system, the oxidation of substances such as phosphate esters, self-emulsifying esters, and tall oils under prolonged high-temperature conditions can be delayed or inhibited, thus reducing the life of the rolling fluid. The preferred antioxidants not only provide better results but also exhibit greater stability within the composition system.

[0012] In some preferred embodiments, the above-mentioned titanium alloy rolling fluid composition further includes 0.05-0.50 parts of an organic base. More preferably, the organic base is at least one selected from dicyclohexylamine, triethanolamine, and ethanolamine. The inventors have found that in the above-mentioned specific composition system, by controlling the amount of organic base, the pH value and particle size of the emulsion system can be affected, thereby affecting the stability of the emulsion system and the amount of rolling fluid precipitation, ultimately achieving the same control over the cationicity of the rolling fluid; and the preferred organic base has even better effects, and also has the functions of removing impurities and neutralizing.

[0013] A second aspect of the present invention provides a method for preparing the above-mentioned titanium alloy rolling fluid composition, comprising the following steps: adding the extreme pressure agent, the corrosion inhibitor, the antioxidant and the oiliness agent to the base oil at a temperature of 45 ℃-55 ℃, 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 fluid 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, and is easy to clean and has adjustable cationicity, which reduces the pattern phenomenon of the rolls and the wear of the rolls and plates during the rolling process, and can be applied to most working conditions. Detailed Implementation

[0015] The following will provide a clear and complete description of the concept and technical effects of the present invention in conjunction with embodiments, so as to fully understand the purpose, solution and effects of the present invention. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0016] The following content contains some raw material information:

[0017] 24° Palm Oil: Suzhou Fuzhiyuan Biotechnology Co., Ltd.;

[0018] 500SN: Foshan Jinjian;

[0019] Coconut oil: Yihai Kerry;

[0020] Phosphate ester anti-wear agent NCL-2: Lubrizol, USA;

[0021] Octyl / Butyldiphenylamine T557: Maoming Kaohsiung Petrochemical Co., Ltd.

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

[0023] Alkyl diphenylamine L57: BASF;

[0024] Coconut oil fatty acids: Jinan Hongming;

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

[0026] Sulfated lard 1310LV: Smecta oil product;

[0027] Sulfide Olefin 2540: Rhein Chemicals;

[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, comprising the following raw materials by weight: 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 ester anti-wear 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), and alkyl diphenylamine L57 (anti-corrosion agent). Oxidizing agent) 0.2 parts, coconut oil fatty acid (oiliness agent) 0.5 parts, sulfurized fatty acid ester 2515 (oiliness agent) 3 parts, sulfurized lard 1310LV (oiliness agent) 3 parts, sulfurized olefin 2540 (oiliness 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 fluid composition includes the following steps: at 50 °C, the base oil is mixed and stirred until the solution is clear and transparent. Then, extreme pressure agent, corrosion inhibitor, antioxidant and oiliness agent are added to the base oil and stirred until clear and transparent. Then, the remaining raw materials are added and stirred until clear and transparent to obtain the titanium alloy rolling fluid composition.

[0036] Example 2

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

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

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

[0040] Example 3

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

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

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

[0044] Example 4

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

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

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

[0048] Example 5

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

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

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

[0052] Example 6

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

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

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

[0056] Example 7

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

[0058] Example 8

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

[0060] Example 9

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

[0062] Example 10

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

[0064] Example 11

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

[0066] Effect test experiment

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

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

[0069] (2) Stability and pH tests were conducted in accordance with industry standards SH / T 0579 and SH / T 0578.

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

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

[0072] Table 1

[0073]

[0074] Table 2

[0075]

[0076] Table 3

[0077]

[0078] As shown in Tables 1-3, in the composition system of the present invention, the stability of the emulsion system can be adjusted by controlling the amounts of the three components—dimethoxyethyl phthalate T8230, fatty alcohol polyoxyethylene ether polyether phosphate AEO-3P, and tallow amine polyoxyethylene ether T15—or by controlling the amount of dicyclohexylamine, thereby affecting the amount of precipitation in the rolling solution and thus adapting it to different working conditions. For example, as shown in Table 3, with the increase of the amount of dicyclohexylamine added, the pH value of the emulsion system increases, the particle size increases, and the further the emulsion system deviates from the center point of 5.75, the greater the ESI, and the more stable the emulsion system becomes, thereby effectively reducing its cationicity.

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

[0080] Firstly, titanium alloy debris generated during the rolling process cannot be removed by magnetic attraction or other technical means. This debris tends to accumulate and leaves patterns on the plate surface during the rolling process. The titanium alloy rolling fluid composition of the present invention can improve cationicity, promote precipitation and carry titanium alloy debris to float, thereby achieving the purpose of cleaning titanium alloy debris.

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

[0082] The above description is merely a preferred embodiment of the present invention. The present invention is not limited to the above-described embodiments. Any embodiment that achieves the technical effects of the present invention using the same means should fall within the protection scope of the present invention. Within the protection scope of the present invention, various modifications and variations can be made to the technical solutions and / or implementation methods.

Claims

1. A titanium alloy rolling fluid composition characterized by, The raw materials mainly include, by mass fraction: base oil 70-90 parts, extreme pressure agent 0.5-1.5 parts, corrosion inhibitor 0.1-0.5 parts, antioxidant 0.1-0.5 parts, oiliness agent 6-8 parts, emulsifier 2-4 parts; 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); The oiliness agent further includes coconut oil fatty acid, sulfurized fatty acid ester, sulfurized lard and sulfurized olefin with a mass ratio of 0.5:3:3:0.5; The base oil is at least one of palm oil, 500SN, coconut oil, CTL6, CTL10 and 10# transformer oil; The extreme pressure agent is at least one of phosphate ester, phosphate ester ammonium salt and phosphoramide.

2. The titanium alloy rolling fluid composition of claim 1, wherein, The emulsifier further includes at least one of alkoxylated fatty alcohol, polysorbate, sorbitan monooleate, alcohol ether carboxylic acid and octylphenol polyoxyethylene ether.

3. The titanium alloy rolling fluid composition of claim 2, wherein, The emulsifier further 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.

4. The titanium alloy rolling fluid composition of claim 1, wherein, 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-phenyl aniline and 2,4,4-trimethylpentene, N-phenyl-α-naphthylamine, alkylphenothiazine, alkyl diphenylamine, 2,6 di-tert-butyl-p-cresol and 2,6 di-tert-butyl amino-p-cresol.

5. The titanium alloy rolling fluid composition of claim 4, wherein, The base oil is composed of palm oil, 500SN and coconut oil; and / or, the corrosion inhibitor is octyl / dibutyl diphenylamine; and / or, the antioxidant is composed of alkyl diphenylamine and 2,6 di-tert-butyl amino-p-cresol.

6. The titanium alloy rolling fluid composition of any one of claims 1-5, wherein, The raw materials further include organic base 0.05-0.50 parts.

7. The titanium alloy rolling fluid composition of claim 6, wherein, The organic base is at least one of dicyclohexylamine, triethanolamine and ethanolamine.

8. A method of preparing a titanium alloy rolling fluid composition according to any one of claims 1 to 7, characterized in that, The method comprises the following steps: The extreme pressure agent, the corrosion inhibitor, the antioxidant and the oiliness agent are added to the base oil under the condition of 45 ℃-55 ℃, and after stirring to be clear and transparent, the remaining raw materials are added, and continue to stir to be clear and transparent, to obtain the titanium alloy rolling liquid composition.

Images