Environmentally friendly and energy-saving copper pipe processing oil

Abstract

The present application relates to an environmentally friendly and energy-saving copper tube processing oil, which includes by weight percentage: 94.9-99% isoparaffin base oil; 0.95-5% lubricant; 0.05-0.1% metal deactivator; the preparation method of the lubricant includes the following steps: S1, prepare each component material in proportion; S2, add lubricant A to the reactor, and stir at a speed of 60-80r / min for 0.5-1h; S3, add extreme pressure agent and wetting agent, add lubricant B while maintaining stirring, and continue stirring at a speed of 80-100r / min for 1-1.5h to obtain the lubricant. The present application uses isoparaffin base oil as the main preparation body of copper tube processing oil. Compared with ordinary alkane solvents, it not only has high purity, but also has no residue after drying and good environmental performance; extreme pressure agent, wetting agent, etc. are added to treat the lubricant to further improve the extreme pressure anti-wear characteristics, lubrication performance and stability of the lubricant, thereby improving the overall performance of the copper tube processing oil.

Description

Technical Field

[0001] The present application relates to the technical field of processing oil compositions, and in particular to an environmentally friendly and energy-saving copper pipe processing oil. Background Art

[0002] The development process of copper tube processing oil has evolved from washable to no-clean, and then to drying and degreasing type. Most of the copper tube processing oils used in the market today are drying and degreasing type. After the copper tube bending process is completed, there are volatile oil residues inside the copper tube, which need to be dried in a degreasing furnace to completely evaporate the volatile oil in the tube, in order to avoid affecting the energy efficiency of the air conditioner and the subsequent anthill corrosion of the copper tube.

[0003] There are many oils on the market for copper tube bending processing in air-conditioning products. The most important thing is to ensure sufficient lubrication performance. Processing oil with poor lubrication performance may cause excessive friction when processing copper tubes, increase equipment wear, and even cause equipment failure, which will not only affect production efficiency, but also increase the cost of repairing and replacing equipment. At the same time, the common problem of these processing oils is that they use environmentally unfriendly dearomatized solvents and non-volatile additive components, which cause environmentally unfriendly solvents to be discharged into the air during drying. After drying, there are additives residues on the inner wall of the copper tube, which affects the energy efficiency of the air conditioner. At the same time, the residual additives that remain on the copper tube for a long time will also corrode the copper tube, increase the failure rate of the air conditioner, and cause greater pollution to the environment. Summary of the invention

[0004] In view of the deficiencies in the prior art, in order to reduce the failure rate of air conditioners and improve the lubrication performance and environmental performance of processing oil, the present application provides an environmentally friendly and energy-saving copper tube processing oil.

[0005] The above-mentioned invention objective of the present application is achieved through the following technical solutions:

[0006] An environmentally friendly and energy-saving copper tube processing oil, characterized in that it comprises the following components by weight percentage: 94.9-99% isoparaffin base oil; 0.95-5% lubricant; 0.05-0.1% metal deactivator;

[0007] The method for preparing the lubricant comprises the following steps:

[0008] S1. Prepare the components in proportion;

[0009] S2, add lubricant A into the reactor and stir at a speed of 60-80 r / min for 0.5-1 h;

[0010] S3, adding an extreme pressure agent and a wetting agent, adding lubricant B while maintaining stirring, and continuing stirring at a speed of 80 to 100 r / min for 1 to 1.5 hours to obtain the lubricant.

[0011] By adopting the above technical scheme, isoparaffin base oil is used as the main preparation body of copper tube processing oil. Compared with ordinary alkane solvents, it not only has high purity, but also has no residue after drying, and has good environmental performance; the metal deactivator is used to prevent or weaken the oxidative catalytic effect of metal on oil products; the synthetic ester lubricant has excellent lubricating performance and high thermal stability, and can maintain a stable lubricating effect even in high or low temperature environments. The lubricant is treated by adding extreme pressure agents, wetting agents, etc. to further improve the extreme pressure and anti-wear characteristics, lubricating performance and stability of the lubricant, thereby improving the lubricating performance of the copper tube processing oil.

[0012] In a preferred example, the present application can be further configured as follows: the lubricant A includes isooctyl palmitate and isooctyl oleate; the lubricant B is selected from one or more of methyl laurate, methyl palmitate, and methyl oleate.

[0013] By adopting the above technical scheme, isooctyl palmitate has excellent lubricity and thermal stability, is non-sticky, and has little carbon residue and no coking after high-temperature decomposition; isooctyl oleate can provide very good lubricity in pure oil processing, while providing processing fluid permeability, such as high-speed cutting, drilling, stamping, etc., and also has excellent wettability and low viscosity, and is biodegradable; methyl laurate usually has lower viscosity and good permeability, which helps to improve the lubrication effect in the lubrication system; methyl oleate and methyl palmitate both have lubricating effects and can be used as additives for bearing lubrication, machine oil, lubricating oil, etc.

[0014] In a preferred example, the present application can be further configured as follows: the lubricant A includes isooctyl palmitate and isooctyl oleate; and the lubricant B is composed of methyl laurate, methyl palmitate and methyl oleate.

[0015] By adopting the above technical scheme, methyl laurate, as a component of the lubricant, its chemical stability and compatibility with other ingredients help to form a stable and long-lasting lubricating film, thereby providing excellent lubrication effect; the addition of methyl palmitate can significantly improve the lubricating effect of the lubricant and reduce friction and wear. In addition, methyl palmitate is also stable and biodegradable; methyl oleate has excellent antioxidant and thermal stability, and can maintain stable lubrication performance under harsh conditions such as high temperature and high pressure; the above three ingredients are combined together to synergistically enhance each other and jointly improve the lubrication effect and service life of the lubricant.

[0016] In a preferred example, the present application can be further configured as follows: the components in the lubricant A and the lubricant B, calculated by weight percentage, have a ratio of: isooctyl oleate: isooctyl palmitate: methyl palmitate: methyl oleate: methyl laurate = 10: (7-10): (3-6.5): (3-6): (2-5).

[0017] By adopting the above technical scheme, the proportion ratio of each component in lubricant A and lubricant B is adjusted, the lubrication effect of the lubrication system is optimized, friction and wear are reduced, the operating efficiency and life of the equipment are improved, and its oxidation resistance, thermal stability and environmental friendliness are increased, thereby improving the comprehensive performance and economic benefits of copper tube processing oil.

[0018] In a preferred example, the present application can be further configured as follows: the extreme pressure agent in step S3 is selected from one or more of dibenzothiazole disulfide, tricresyl phosphate, and di-n-butyl phosphite.

[0019] By adopting the above technical scheme, tricresol phosphate has excellent extreme pressure and anti-wear properties, and its volatility is low, and its electrical properties are good, which helps to improve the stability of lubrication; di-n-butyl phosphite also has a high extreme pressure and anti-wear index, and its activity is low, no side effects, and good compatibility with the lubrication system.

[0020] In a preferred example, the present application can be further configured as follows: the isoparaffin base oil is a hydroisomerized alkane mixture obtained from petroleum products, or it can be an isomerized alkane mixture obtained from coal and synthesized through a Fischer-Tropsch process.

[0021] By adopting the above technical solution, isoparaffin is a colorless, odorless, high-purity hydrocarbon solvent oil with a single and stable component, high antioxidant performance and green and environmentally friendly characteristics.

[0022] In a preferred example, the present application can be further configured as follows: the carbon chain length of the isoparaffin base oil is 10 to 12.

[0023] By adopting the above technical scheme, isoalkanes with moderate carbon chain length have good oxidation stability, low viscosity and moderate pour point.

[0024] In a preferred example, the present application can be further configured as follows: the viscosity of the isoparaffin base oil is 1.1 to 1.3 mm 2 / s, and the distillation range of the isoparaffin base oil is 190-210°C.

[0025] By adopting the above technical solution, isoparaffin base oil with suitable viscosity and distillation range is selected to further improve the comprehensive performance of copper tube processing oil.

[0026] In a preferred example, the present application can be further configured as follows: the metal deactivator is an oil-soluble metal deactivator, specifically one or more of benzotriazole and its derivatives, and thiadiazole derivatives.

[0027] By adopting the above technical scheme, benzotriazole and its derivatives can significantly improve the antioxidant and corrosion resistance of oil products, and show excellent stability and durability. At the same time, they also have good oil solubility and can be evenly dispersed in oil products. In addition to being able to improve the antioxidant properties of oil products, thiadiazole derivatives also have good extreme pressure and anti-wear properties.

[0028] In summary, this application has the following beneficial technical effects:

[0029] 1. The environmentally friendly and energy-saving copper tube processing oil involved in the present invention uses isoparaffin base oil as the main preparation body of the copper tube processing oil. Compared with ordinary alkane solvents, the isoparaffin base oil is not only of high purity, but also has no residue after drying, and has good environmental performance; the metal deactivator is used to prevent or weaken the oxidation catalytic effect of metal on oil products; the synthetic ester lubricant has excellent lubricating performance and high thermal stability, and can maintain a stable lubricating effect even in high or low temperature environments, and the synthetic ester lubricant is modified and an extreme pressure agent is added to provide good extreme pressure and anti-wear properties, thereby improving the lubricating performance of the copper tube processing oil. DETAILED DESCRIPTION

[0030] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof. It should be understood that the scope of protection of the present invention is not limited to the specific embodiments described below; it should also be understood that the terms used in the embodiments of the present invention are intended to describe specific embodiments, rather than to limit the scope of protection of the present invention.

[0032] As mentioned above, the copper tube processing oil currently on the market discharges environmentally unfriendly solvents into the air during drying. After drying, additives remain on the inner wall of the copper tube, affecting the energy efficiency of the air conditioner. At the same time, the residual additives will remain on the copper tube for a long time and will corrode the copper tube, increase the failure rate of the air conditioner, and cause greater pollution to the environment. Therefore, there is an urgent need to provide an energy-saving and environmentally friendly copper tube processing oil.

[0033] 10. The present application discloses an environmentally friendly and energy-saving copper tube processing oil, which comprises the following components by weight percentage: 94.9-99% isoparaffin base oil; 0.95-5% lubricant; 0.05-0.1% metal deactivator;

[0034] The method for preparing the lubricant comprises the following steps:

[0035] S1. Prepare the components in proportion;

[0036] S2, add lubricant A into the reactor and stir at a speed of 60-80 r / min for 0.5-1 h;

[0037] S3, adding an extreme pressure agent and a wetting agent, adding lubricant B while maintaining stirring, and continuing stirring at a speed of 80 to 100 r / min for 1 to 1.5 hours to obtain the lubricant.

[0038] Preferably, the lubricant A includes isooctyl palmitate and isooctyl oleate; and the lubricant B is selected from one or more of methyl laurate, methyl palmitate, and methyl oleate.

[0039] Preferably, the lubricant A comprises isooctyl palmitate and isooctyl oleate; and the lubricant B consists of methyl laurate, methyl palmitate and methyl oleate.

[0040] Preferably, the ratio of the components in the lubricant A and the lubricant B, calculated by weight percentage, is: isooctyl oleate: isooctyl palmitate: methyl palmitate: methyl oleate: methyl laurate = 10: (7-10): (3-6.5): (3-6): (2-5).

[0041] Preferably, the extreme pressure agent in step S3 is selected from one or more of dibenzothiazole disulfide, tricresyl phosphate, and di-n-butyl phosphite.

[0042] Preferably, the isoparaffin base oil is a hydroisomerized alkane mixture obtained from petroleum products, or may be an isomerized alkane mixture obtained from coal and synthesized by a Fischer-Tropsch process.

[0043] Preferably, the carbon chain length of the isoparaffin base oil is 10-12.

[0044] Preferably, the viscosity of the isoparaffin base oil is 1.1 to 1.3 mm 2 / s, and the distillation range of the isoparaffin base oil is 190-210°C.

[0045] Preferably, the metal deactivator is an oil-soluble metal deactivator, specifically one or more of benzotriazole and its derivatives, and thiadiazole derivatives.

[0046] The present invention is further explained by the following examples, but they are not intended to limit the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0047] Example 1

[0048] An energy-saving and environmentally friendly copper tube processing oil, wherein the components specifically include, by weight percentage:

[0049] 94.95% isoparaffin base oil with a carbon chain length of 10 and a distillation range of 200;

[0050] Synthetic ester lubricant 5%;

[0051] Benzotriazole derivatives 0.05%;

[0052] The synthetic ester lubricant includes methyl laurate, methyl palmitate, methyl oleate, isooctyl palmitate and isooctyl oleate, and the ratio of methyl laurate: methyl oleate: methyl palmitate: isooctyl palmitate: isooctyl oleate is 3:4:5:8:10. The preparation method is as follows:

[0053] S1. Prepare the components in proportion;

[0054] S2, add isooctyl palmitate and isooctyl oleate into the reaction kettle, and stir at a speed of 80 r / min for 1 h;

[0055] S3, add tricresyl phosphate, di-n-butyl phosphite and a wetting agent, add methyl laurate, methyl palmitate and methyl oleate while maintaining stirring, and continue stirring at a speed of 100 r / min for 1 hour to obtain the synthetic ester lubricant.

[0056] The above raw materials were mixed uniformly at room temperature to prepare copper tube processing oil sample 1.

[0057] Example 2

[0058] An energy-saving and environmentally friendly copper tube processing oil, wherein the components specifically include, by weight percentage:

[0059] 95% isoparaffin base oil with a carbon chain length of 10 and a distillation range of 200;

[0060] Synthetic ester lubricant 4.95%;

[0061] Benzotriazole derivatives 0.05%;

[0062] Among them, the synthetic ester lubricant includes methyl laurate, methyl palmitate, methyl palmitate, methyl oleate, isooctyl palmitate and isooctyl oleate, and the preparation method thereof is as follows:

[0063] S1. Prepare the components in proportion;

[0064] S2, add isooctyl palmitate and isooctyl oleate into the reaction kettle, and stir at a speed of 75 r / min for 1 h;

[0065] S3, add tricresyl phosphate, di-n-butyl phosphite and a wetting agent, add methyl laurate, methyl palmitate and methyl oleate while maintaining stirring, and continue stirring at a speed of 95 r / min for 1.5 h to obtain the synthetic ester lubricant.

[0066] The above raw materials were mixed uniformly at room temperature to prepare copper tube processing oil sample 2.

[0067] Example 3

[0068] An energy-saving and environmentally friendly copper tube processing oil, wherein the components specifically include, by weight percentage:

[0069] 97.4% isoparaffin base oil with a carbon chain length of 10 and a distillation range of 200;

[0070] Synthetic ester lubricant 2.5%;

[0071] Benzotriazole derivatives 0.1%;

[0072] The synthetic ester lubricant includes methyl laurate, methyl palmitate, methyl oleate, isooctyl palmitate and isooctyl oleate, and the ratio of methyl laurate: methyl oleate: methyl palmitate: isooctyl palmitate: isooctyl oleate is 3:4:6.5:8:10. The preparation method is as follows:

[0073] S1. Prepare the components in proportion;

[0074] S2, add isooctyl palmitate and isooctyl oleate into the reaction kettle, and stir at a speed of 80 r / min for 1 h;

[0075] S3, add tricresyl phosphate, di-n-butyl phosphite and a wetting agent, add methyl laurate, methyl palmitate and methyl oleate while maintaining stirring, and continue stirring at a speed of 100 r / min for 1 hour to obtain the synthetic ester lubricant.

[0076] The above raw materials were mixed uniformly at room temperature to prepare copper tube processing oil sample 3.

[0077] Example 4

[0078] An energy-saving and environmentally friendly copper tube processing oil, wherein the components specifically include, by weight percentage:

[0079] 99% isoparaffin base oil with a carbon chain length of 10 and a distillation range of 200;

[0080] Synthetic ester lubricant 0.95%;

[0081] Benzotriazole derivatives 0.05%;

[0082] The synthetic ester lubricant includes methyl laurate, methyl palmitate, methyl oleate, isooctyl palmitate and isooctyl oleate, and the ratio of methyl laurate: methyl oleate: methyl palmitate: isooctyl palmitate: isooctyl oleate is 3:4:5:8:10. The preparation method is as follows:

[0083] S1. Prepare the components in proportion;

[0084] S2, add isooctyl palmitate and isooctyl oleate into the reaction kettle, and stir at a speed of 80 r / min for 1 h;

[0085] S3, add tricresyl phosphate, di-n-butyl phosphite and a wetting agent, add methyl laurate, methyl palmitate and methyl oleate while maintaining stirring, and continue stirring at a speed of 100 r / min for 1 hour to obtain the synthetic ester lubricant.

[0086] The above raw materials were mixed uniformly at room temperature to prepare copper tube processing oil sample 4.

[0087] Example 5

[0088] An energy-saving and environmentally friendly copper tube processing oil, wherein the components specifically include, by weight percentage:

[0089] 95% isoparaffin base oil with a carbon chain length of 10 and a distillation range of 190;

[0090] Synthetic ester lubricant 4.95%;

[0091] Benzotriazole derivatives 0.05%;

[0092] Among them, the synthetic ester lubricant includes methyl laurate, methyl palmitate, methyl oleate, isooctyl palmitate and isooctyl oleate, and the preparation method thereof is as follows:

[0093] S1. Prepare the components in proportion;

[0094] S2, add isooctyl palmitate and isooctyl oleate into the reaction kettle, and stir at a speed of 80 r / min for 1 h;

[0095] S3, add tricresyl phosphate, di-n-butyl phosphite and a wetting agent, add methyl laurate, methyl palmitate and methyl oleate while maintaining stirring, and continue stirring at a speed of 95 r / min for 1.5 h to obtain the synthetic ester lubricant.

[0096] The above raw materials were mixed uniformly at room temperature to prepare copper tube processing oil sample 5.

[0097] Example 6

[0098] An energy-saving and environmentally friendly copper tube processing oil, wherein the components specifically include, by weight percentage:

[0099] 94.95% isoparaffin base oil with a carbon chain length of 12 and a distillation range of 210;

[0100] Synthetic ester lubricant 5%;

[0101] Benzotriazole derivatives 0.05%;

[0102] The synthetic ester lubricant includes methyl laurate, methyl palmitate, methyl oleate, isooctyl palmitate and isooctyl oleate, and the ratio of methyl laurate: methyl oleate: methyl palmitate: isooctyl palmitate: isooctyl oleate is 3: 3: 5: 9: 10. The preparation method is as follows:

[0103] S1. Prepare the components in proportion;

[0104] S2, add isooctyl palmitate and isooctyl oleate into the reaction kettle, heat to 55°C and stir at a speed of 70r / min for 1h;

[0105] S3, add tricresyl phosphate, di-n-butyl phosphite and a wetting agent, add methyl laurate, methyl palmitate and methyl oleate while maintaining stirring, and continue stirring at a speed of 90 r / min for 1 hour to obtain the synthetic ester lubricant.

[0106] The above raw materials were mixed uniformly at room temperature to prepare copper tube processing oil sample 6.

[0107] Example 7

[0108] An energy-saving and environmentally friendly copper tube processing oil, wherein the components specifically include, by weight percentage:

[0109] 94.95% isoparaffin base oil with a carbon chain length of 10 and a distillation range of 190;

[0110] Synthetic ester lubricant 5%;

[0111] Benzotriazole derivatives 0.05%;

[0112] The synthetic ester lubricant includes methyl laurate, methyl oleate, isooctyl palmitate and isooctyl oleate, and the ratio of methyl laurate: methyl oleate: isooctyl palmitate: isooctyl oleate is 3:4:8:10. The preparation method is as follows:

[0113] S1. Prepare the components in proportion;

[0114] S2, add isooctyl palmitate and isooctyl oleate into the reaction kettle, and stir at a speed of 80 r / min for 1 h;

[0115] S3, add tricresyl phosphate, di-n-butyl phosphite and a wetting agent, add methyl laurate and methyl oleate while maintaining stirring, and continue stirring at a speed of 100 r / min for 1 hour to obtain the synthetic ester lubricant.

[0116] The above raw materials were mixed uniformly at room temperature to prepare copper tube processing oil sample 7.

[0117] Example 8

[0118] An energy-saving and environmentally friendly copper tube processing oil, wherein the components specifically include, by weight percentage:

[0119] 97.4% isoparaffin base oil with a carbon chain length of 10 and a distillation range of 200;

[0120] Synthetic ester lubricant 2.5%;

[0121] Thiadiazole derivatives 0.1%;

[0122] The synthetic ester lubricant includes methyl laurate, methyl oleate, isooctyl palmitate and isooctyl oleate, and the ratio of methyl laurate: methyl oleate: isooctyl palmitate: isooctyl oleate is 3:4:8:10. The preparation method is as follows:

[0123] S1. Prepare the components in proportion;

[0124] S2, add isooctyl palmitate and isooctyl oleate into the reaction kettle, and stir at a speed of 80 r / min for 1 h;

[0125] S3, add tricresyl phosphate, di-n-butyl phosphite and a wetting agent, add methyl laurate and methyl oleate while maintaining stirring, and continue stirring at a speed of 100 r / min for 1 hour to obtain the synthetic ester lubricant.

[0126] The above raw materials were mixed uniformly at room temperature to prepare copper tube processing oil sample 8.

[0127] Example 9

[0128] An energy-saving and environmentally friendly copper tube processing oil, wherein the components specifically include, by weight percentage:

[0129] 94.95% isoparaffin base oil with a carbon chain length of 12 and a distillation range of 210;

[0130] Synthetic ester lubricant 5%;

[0131] Benzotriazole derivatives 0.05%;

[0132] The synthetic ester lubricant includes methyl laurate, methyl oleate, isooctyl palmitate and isooctyl oleate, and the ratio of methyl laurate: methyl oleate: isooctyl palmitate: isooctyl oleate is 3:5:7:10. The preparation method is as follows:

[0133] S1. Prepare the components in proportion;

[0134] S2, add isooctyl palmitate and isooctyl oleate into the reaction kettle, and stir at a speed of 75 r / min for 1 h;

[0135] S3, add tricresyl phosphate, di-n-butyl phosphite and a wetting agent, add methyl laurate and methyl oleate while maintaining stirring, and continue stirring at a speed of 95 r / min for 1 hour to obtain the synthetic ester lubricant.

[0136] The above raw materials were mixed uniformly at room temperature to prepare copper tube processing oil sample 9.

[0137] Example 10

[0138] An energy-saving and environmentally friendly copper tube processing oil, wherein the components specifically include, by weight percentage:

[0139] 94.9% isoparaffin base oil with a carbon chain length of 10 and a distillation range of 200;

[0140] Synthetic ester lubricant 5%;

[0141] Benzotriazole derivatives 0.1%;

[0142] The synthetic ester lubricant includes methyl laurate, methyl oleate, isooctyl palmitate and isooctyl oleate, and the ratio of methyl laurate: methyl oleate: isooctyl palmitate: isooctyl oleate is 3:4:8:10. The preparation method is as follows:

[0143] S1. Prepare the components in proportion;

[0144] S2, add isooctyl palmitate and isooctyl oleate into the reaction kettle, and stir at a speed of 80 r / min for 1 h;

[0145] S3, add tricresyl phosphate, di-n-butyl phosphite and a wetting agent, add methyl laurate and methyl oleate while maintaining stirring, and continue stirring at a speed of 100 r / min for 1 hour to obtain the synthetic ester lubricant.

[0146] The above raw materials were mixed uniformly at room temperature to prepare copper tube processing oil sample 10.

[0147] Comparative Example 1

[0148] The copper tube processing oil sold by Company A on the market is designated as Sample 11.

[0149] Samples 1-11 were compared, and the comparison results are shown in Table 1.

[0150] Table 1

[0151]

[0152] It can be seen from Table 1 that the energy-saving and environmentally friendly copper tube processing oil samples 1-10 prepared in this application have a volatility of 100%, and there is no residue after drying; and sample 1 is the optimal embodiment. By comparing the data of sample 2 with sample 1, sample 2 prepared in Example 2 does not set a specific ratio for each component in the synthetic ester lubricant, and its kinematic viscosity at 40°C is significantly greater than that of sample 1, and the maximum no-seizure load PB value is lower than that of sample 1, and the lubrication performance is poor; the proportion of synthetic ester lubricants used in samples 3-4 prepared in Examples 3-4 is low, and the lubrication performance is poor; the isoparaffin base used in samples 5-6 prepared in Examples 5-6 The carbon chain length and distillation range of the oil adopt parameters different from those of Sample 1 prepared in Example 1, which shows poor lubrication performance and a flash point slightly lower than that of Sample 1; Samples 7-10 prepared in Examples 7-10 do not use methyl palmitate as a preparation component of synthetic ester lubricants, among which, except that Sample 8 reduces the proportion of synthetic ester lubricants, resulting in greatly reduced lubrication performance, the lubrication performance and flash point of Samples 7 and Samples 9-10 are slightly lower than those of Sample 1; after comparison with Sample 11 in Comparative Example 1, Samples 1-10 prepared in the present application show good lubrication performance and environmental protection performance, and the flash points are all above 65°C, with high safety.

[0153] In summary, the energy-saving and environmentally friendly copper tube processing oil prepared by the present application can be applied to the bending processing of air-conditioning copper tubes, and has the characteristics of no residue after drying, good environmental performance and excellent lubrication performance. It uses isoparaffin base oil as the main preparation body of the copper tube processing oil. Compared with ordinary alkane solvents, it not only has high purity, but also has no residue after drying, and has good environmental performance; the metal deactivator is used to prevent or weaken the oxidation catalytic effect of metal on oil products; the synthetic ester lubricant has excellent lubrication performance and high thermal stability, and can maintain a stable lubrication effect even in high or low temperature environments, and the synthetic ester lubricant is modified, and an extreme pressure agent is added to provide good extreme pressure anti-wear properties, and the distribution ratio of each component of the lubricant is adjusted to improve the lubrication performance and stability of the synthetic ester lubricant, thereby improving the lubrication performance of the copper tube processing oil.

[0154] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. An environmentally friendly and energy-saving copper tube processing oil, characterized in that: By weight percentage, it includes the following components: 94.9-99% isoparaffin base oil; 0.95-5% lubricant; 0.05-0.1% metal deactivator; wherein the preparation method of the lubricant comprises the following steps: S1. Prepare the components in proportion; S2, add lubricant A into the reactor and stir at a speed of 60-80 r / min for 0.5-1 h; S3, adding an extreme pressure agent and a wetting agent, adding lubricant B while maintaining stirring, and continuing to stir at a speed of 80 to 100 r / min for 1 to 1.5 hours to obtain the lubricant; The lubricant A comprises isooctyl palmitate and isooctyl oleate; the lubricant B comprises methyl laurate, methyl palmitate and methyl oleate; The components in the lubricant A and the lubricant B are calculated by weight percentage in a ratio of: isooctyl oleate: isooctyl palmitate: methyl palmitate: methyl oleate: methyl laurate = 10: (7-10): (3-6.5): (3-6): (2-5).

2. The environmentally friendly and energy-saving copper tube processing oil according to claim 1, characterized in that: The isoparaffin base oil is a hydrogenated isomerized alkane mixture obtained from petroleum products, or an isomerized alkane mixture obtained from coal and synthesized through a Fischer-Tropsch process.

3. The environmentally friendly and energy-saving copper tube processing oil according to claim 2 is characterized in that: The carbon chain length of the isoparaffin base oil is 10-12.

4. The environmentally friendly and energy-saving copper tube processing oil according to claim 2, characterized in that: The viscosity of the isoparaffin base oil is 1.1 to 1.3 mm 2 / s, and the distillation range of the isoparaffin base oil is 190-210°C.

5. The environmentally friendly and energy-saving copper tube processing oil according to claim 1, characterized in that: The extreme pressure agent in step S3 is selected from at least one of dibenzothiazole disulfide, tricresyl phosphate, and di-n-butyl phosphite.

6. The environmentally friendly and energy-saving copper tube processing oil according to claim 1, characterized in that: The metal deactivator is an oil-soluble metal deactivator, specifically one or more of benzotriazole and its derivatives, and thiadiazole derivatives.

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