Water-soluble heavy duty forming oil and method of making

Abstract

The application discloses a water-soluble heavy-load forming oil and a preparation method thereof, and belongs to the technical field of lubricating oil, wherein the water-soluble heavy-load forming oil comprises the following components in percentage by weight: 37-48% of oiliness agent, 21-23% of extreme pressure agent, 16-18% of surfactant, 6-8% of antirust agent, 4-6% of phosphorous acid, 2-3% of antioxidant, 2-3% of metal deactivator and 1-2% of viscosity index improver. The water-soluble heavy-load forming oil has good extreme pressure lubricity, is suitable for one-time forming processing under heavy load, and has the advantages of emulsifiability, easy cleaning, good rust prevention and corrosion inhibition and long storage life. The preparation method of the water-soluble heavy-load forming oil is simple and efficient, the equipment used in the preparation method is easy to arrange, and the water-soluble heavy-load forming oil can be widely popularized in the forming processing industry.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lubricating oil, in particular to a water-soluble heavy load forming oil and a preparation method thereof. BACKGROUND

[0002] Primary forming is an important process for preparing parts. Primary forming process has been more and more widely used in many fields such as automobiles and large equipment manufacturing. Compared with the multi-step forming process in which the workpiece is deformed step by step to complete the processing, the workpiece processed by the primary forming process has the advantages of continuous internal crystal structure, high hardness and strength, uniform surface and good consistency.

[0003] In the forming process of the workpiece, large-scale deformation of the workpiece will release a large amount of heat, and the non-uniformity of the microstructure will cause damage to the workpiece and the mold. In order to ensure the smooth progress of the primary forming process, it is necessary to use appropriate forming oil as a medium to ensure uniform deformation of the material in the deformation process through lubrication and cooling of the forming oil.

[0004] For the forming process of large-scale workpieces, the forming oil needs to have very strong lubricating properties to ensure that a continuous and high-strength lubricating film can be formed to prevent the surface of the mold and the workpiece from being damaged and structurally damaged. In addition, the forming oil should not corrode the mold and the workpiece, and should be easy to clean without residue, so as not to affect the use or subsequent processing procedures. However, in the prior art, the lubricating properties of the proposed forming oil under heavy load are still insufficient (for example, in the prior art Chinese invention patent CN108659931A, the sintering load of the forming oil is 800 Kg), and the lubricating properties of the forming oil with water solubility and easy cleaning properties are even lower. Therefore, it is necessary to develop a high-load primary forming oil with sufficient water solubility to ensure the smooth progress of the difficult primary forming process.

[0005] It can be seen that the prior art still needs to be improved and improved. SUMMARY

[0006] The present application relates to the technical field of lubricating oil, in particular to a water-soluble heavy load forming oil and a preparation method thereof.

[0007] To achieve the above-mentioned purpose, the scheme provided by the present application is:

[0008] A water-soluble heavy load forming oil, comprising the following components by mass percentage:

[0009] Oiliness agent 37-48%, extreme pressure agent 21-23%, surfactant 16-18%, rust inhibitor 6-8%, phosphorous acid 4-6%, antioxidant 2-3%, metal deactivator 2-3%, viscosity index improver 1-2%;

[0010] The oiliness agent includes at least one of octyl fatty acid ester, isooctyl fatty acid ester, octyl fatty acid oxidate, methyl fatty acid ester, tall oil, tall oil fatty acid, oleic acid, ricinoleic acid, coconut oil acid, pentaerythritol oleate, cottonseed oil, tetra ricinoleic acid ester, trimethylolpropane oleate, neodecanoic acid.

[0011] The oiliness agent includes tetra ricinoleic acid ester, octyl fatty acid oxidate and tall oil fatty acid.

[0012] The extreme pressure agent includes sulfur-based extreme pressure agent, oil-soluble phosphorus-based extreme pressure agent and water-soluble phosphorus-based extreme pressure agent.

[0013] The sulfur-based extreme pressure agent includes at least one of sulfurized animal oil, sulfurized fatty acid ester, dibutyl sulfide, dioctyl disulfide, diphenyl sulfide, benzyl sulfide, sulfurized isobutylene, sulfurized propylene, sulfurized cyclohexene;

[0014] The oil-soluble phosphorus-based extreme pressure agent includes at least one of trimethyl phosphate, triethyl phosphate, tributyl phosphate, triphenyl phosphate, trihexyl phosphate, isooctyl phosphate, castor oil phosphate, lauryl phosphate, oleyl phosphate, trioleyl phosphate;

[0015] The water-soluble phosphorus-based extreme pressure agent includes at least one of oleyl polyoxyethylene ether phosphate, lauryl polyoxyethylene ether phosphate, isomeric tridecanol polyoxyethylene ether phosphate, isooctanol polyoxyethylene ether phosphate.

[0016] The surfactant includes at least one of lauryl amido propyl amine oxide, tallow amine polyoxyethylene ether, oleyl amine polyoxyethylene ether, dodecyl amine polyoxyethylene ether, fatty alcohol polyoxyethylene ether, alkyl phenol polyoxyethylene ether, oleyl polyoxyethylene ether, oleic acid polyoxyethylene ether, Span-80, Tween-80.

[0017] The rust inhibitor includes at least one of N-oleoyl sarcosine octadecylamine salt, oleoyl sarcosine, hydroxyethylidene diphosphonic acid, diethylene triamine pentaacetic acid, tartaric acid, citric acid, succinic acid, sodium petroleum sulfonate, zinc naphthenate, alkenyl succinic acid, ternary acid, barium petroleum sulfonate, sodium dodecyl benzene sulfonate, barium petroleum sulfonate, zinc dodecyl benzene sulfonate, zinc naphthenate.

[0018] The metal deactivator includes at least one of thiadiazole derivative, benzotriazole derivative, benzotriazole, methyl benzotriazole, methyl benzotriazole sodium salt.

[0019] The antioxidant includes at least one of 2,6-di-tert-butyl-p-cresol, 2,6-di-tert-butyl-mixed cresol, N,N-diethylhydroxylamine, cyclohexylamine, N,N-di-sec-butyl-p-phenylenediamine, alkyl diphenylamine, thio carbamic acid ester, dilauryl thiodipropionate, dioctadecyl thiodipropionate.

[0020] The viscosity index improver is at least one of polyvinyl n-butyl ether, polymethacrylate, polyacrylate, styrene polyester, hydrogenated styrene-butadiene, hydrogenated styrene-isoprene copolymer, ethylene-propylene copolymer, polyisobutylene.

[0021] The application also provides a preparation method of the water-soluble heavy load forming oil.

[0022] S001. Mix the oiliness agent and the viscosity index improver, and stir at 75-80 DEG C until clear and transparent;

[0023] S002. Slowly add the extreme pressure agent, the phosphorous acid and the surfactant to the mixture obtained in step S001 in sequence, and stir until the solution is clear and transparent;

[0024] S003. Slowly add the antioxidant, the metal deactivator and the anti-rust agent to the mixture obtained in step S002 in sequence, and stir until the solution is clear and transparent to obtain the water-soluble heavy load forming oil.

[0025] The application has the following advantages compared with the existing forming oil:

[0026] (1) Good extreme pressure lubricity, suitable for heavy load one-time forming processing. Through the use of the oiliness agent and the viscosity index improver, the water-soluble heavy load forming oil can form a high-strength lubricating film between the workpiece and the mold during the forming processing of the workpiece; at the same time, the use of the oiliness agent and the viscosity index improver can effectively disperse the extreme pressure agent and the phosphorous acid in the forming oil, and can quickly form a high-strength lubricating film through chemical action during use, effectively reducing the wear of the mold and the workpiece. The extreme pressure agent, the oiliness agent and the viscosity index improver can make the forming oil still have sufficient oil film strength in a high-temperature environment, and can lubricate the mold and the workpiece for a long time.

[0027] (2) emulsifiable, easy to clean, good rust and corrosion resistance, long service life. By adding surfactant to water-soluble heavy-duty forming oil, the forming oil can be effectively emulsified, so that the forming oil is easy to clean on the mold and the workpiece, and there is no problem of affecting the use of the workpiece or affecting the subsequent processing process due to the residual forming oil. And by adding antioxidants, metal deactivators and rust inhibitors to the water-soluble heavy-duty forming oil, the antioxidants, metal deactivators and rust inhibitors can form an effective synergistic effect, so that the water-soluble heavy-duty forming oil containing more acidic substances has high corrosion resistance and rust resistance.

[0028] The application also provides a preparation method of the water-soluble heavy-duty forming oil, which is simple and efficient, and the equipment used in the preparation method is easy to arrange, so that the preparation method can be widely popularized in the forming processing industry. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The application provides a flow chart of the preparation method of the water-soluble heavy-duty forming oil. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the application.

[0031] A water-soluble heavy-duty forming oil comprises the following components in percentage by mass:

[0032] The oil agent is 37-48%, the extreme pressure agent is 21-23%, the surfactant is 16-18%, the rust inhibitor is 6-8%, the phosphorous acid is 4-6%, the antioxidant is 2-3%, the metal deactivator is 2-3%, and the viscosity index improver is 1-2%.

[0033] The oily agent can be adsorbed on the friction surface by the polar group to form a molecularly oriented adsorption film, which can prevent the contact between the mold and the workpiece during the forming process of the workpiece, thereby reducing the friction and wear of the workpiece and the mold. Specifically, the oily agent can include at least one of octyl fatty acid ester, isooctyl fatty acid ester, octyl fatty acid oxidate, methyl fatty acid ester, tall oil, tall oil fatty acid, oleic acid, ricinoleic acid, coconut oil acid, pentaerythritol oleate, cottonseed oil, tetrapolyricinoleate, trimethylolpropane oleate, and neodecanoic acid. By introducing the above-mentioned oily agent into the formula system of the water-soluble heavy load forming oil and controlling the amount of the oily agent, the water-soluble heavy load forming oil can use the oily agent as the basic system, so that the oily agent can simultaneously play the roles of lubrication and solvent, and there is no need to additionally introduce base oil into the formula system of the water-soluble heavy load forming oil.

[0034] The viscosity index improver in the above-mentioned water-soluble heavy load forming oil is an oil-soluble high molecular compound, which is an additive that can improve the viscosity-temperature performance of the oil product, and ensures that the forming oil still has sufficient viscosity to form a lubricating film at high temperatures. In the present application, the oily agent and the viscosity index improver are used together in the forming oil, which can form a high-strength lubricating film between the mold and the workpiece, effectively reducing the wear of the mold and the workpiece.

[0035] The extreme pressure agent in the above-mentioned water-soluble heavy load forming oil is a heavy load additive that reacts with the surface of the friction pair under extreme harsh conditions such as high temperature and high pressure to form an extreme pressure lubricating film. In the primary forming process, the surface of the mold and the workpiece is not completely smooth, and under heavy load, the oil mold may not be able to prevent the contact of the small protrusions of the friction pair, which may cause high temperature and wear. Therefore, an extreme pressure agent needs to be added to the forming oil to ensure the lubricating performance of the forming oil. The phosphorous acid has a faster phosphorus release effect, which can be used in combination with the extreme pressure agent to make the heavy load forming oil quickly exhibit extreme pressure lubricity, effectively reducing the wear of the mold and the workpiece.

[0036] The surfactant in the above-mentioned water-soluble heavy load forming oil can emulsify the heavy load primary forming oil in water, thereby improving the cleaning performance of the forming oil. The antioxidant can delay the oxidation of the forming oil during use and storage, thereby increasing the service life of the forming oil and allowing the forming oil to be stored for a long time. The metal deactivator can be used in combination with the antioxidant to further slow down the oxidation of the primary forming oil and prevent the corrosion of the metal workpiece and the mold. The rust inhibitor can be used in combination with the antioxidant and the metal deactivator to prevent the corrosion of the metal workpiece and the mold, thereby ensuring the surface quality of the workpiece.

[0037] The present application can form a high-strength lubricating film between the workpiece and the mold during the forming process of the workpiece by using the oil agent and the viscosity index improver, and the oil agent and the viscosity index improver can effectively disperse the extreme pressure agent and the phosphorous acid in the forming oil, so that the high-strength lubricating film can be quickly formed by chemical action during use, and the wear of the mold and the workpiece is effectively reduced.

[0038] In addition, the present application can effectively emulsify the forming oil by adding the surfactant to the water-soluble heavy-duty forming oil, so that the forming oil is easy to clean on the mold and the workpiece, and the use of the workpiece or the subsequent processing process is not affected by the residual forming oil. The antioxidant, the metal deactivator and the rust inhibitor can form an effective synergistic effect, so that the water-soluble heavy-duty forming oil containing more acidic substances has high corrosion resistance and rust resistance.

[0039] Preferably, the oil agent includes tetramer castor oil acid ester, oxidized fatty acid octyl ester and tall oil fatty acid. The mass ratio of tetramer castor oil acid ester: oxidized fatty acid octyl ester: tall oil fatty acid is (5-7.5):(25-28):(7-11).

[0040] Preferably, the extreme pressure agent includes sulfur-based extreme pressure agent, oil-soluble phosphorus-based extreme pressure agent and water-soluble phosphorus-based extreme pressure agent. The sulfur-based extreme pressure agent can include at least one of sulfurized animal oil, sulfurized fatty acid ester, dibutyl sulfide, dioctyl disulfide, diphenyl sulfide, benzyl sulfide, sulfurized isobutylene, sulfurized propylene and sulfurized cyclohexene.

[0041] The oil-soluble phosphorus-based extreme pressure agent can include at least one of trimethyl phosphate, triethyl phosphate, tributyl phosphate, triphenyl phosphate, trihexyl phosphate, isooctyl phosphate, castor oil phosphate, lauryl alcohol phosphate, oleyl alcohol phosphate and trioleyl alcohol phosphate.

[0042] The water-soluble phosphorus-based extreme pressure agent can include at least one of oleyl alcohol polyoxyethylene ether phosphate, lauryl alcohol polyoxyethylene ether phosphate, isomeric tridecanol polyoxyethylene ether phosphate and isooctanol polyoxyethylene ether phosphate.

[0043] The sulfur-based extreme pressure agent can provide lubricating performance for the forming oil through chemical action at high temperature; the oil-soluble phosphorus-based extreme pressure and anti-wear agent is an ester formed by 1-3 fatty alcohol molecules and phosphoric acid, which can provide lubricating performance for the forming oil through chemical action at medium and low temperatures. The water-soluble phosphorus-based extreme pressure and anti-wear agent is an ester formed by a fatty alcohol ether molecule containing several ethoxy groups and phosphoric acid, which provides lubricating performance through chemical action at medium and low temperatures, and the water-soluble phosphorus-based extreme pressure and anti-wear agent has hydrophilicity and can be used as a hydrophilic emulsifier to further improve the cleaning performance of the forming oil. Compared with the use of the sulfur-based extreme pressure agent alone, the use of the sulfur-based extreme pressure agent in combination with the oil-soluble phosphorus-based extreme pressure agent and the water-soluble phosphorus-based extreme pressure agent can strengthen the lubricating effect under heavy load in the whole process of workpiece forming machining. Compared with the use of the sulfur-based extreme pressure agent alone, the workpiece and the die will not be stuck or worn in the initial stage of workpiece machining.

[0044] Preferably, the sulfur-based extreme pressure agent is a combination of sulfided fatty acid ester and sulfided isobutylene, the oil-soluble phosphorus-based extreme pressure agent is oleyl phosphate, and the water-soluble phosphorus-based extreme pressure agent is isomeric tridecanol polyoxyethylene ether phosphate. The mass ratio of sulfided fatty acid ester:sulfided isobutylene:oleyl phosphate:isomeric tridecanol polyoxyethylene ether phosphate is (7.5-8):(1.5-2):(7-8):5.

[0045] Specifically, the surfactant includes at least one of lauryl amidopropylamine oxide, tallow amine polyoxyethylene ether, oleyl amine polyoxyethylene ether, dodecyl amine polyoxyethylene ether, fatty alcohol polyoxyethylene ether, alkyl phenol polyoxyethylene ether, oleyl alcohol polyoxyethylene ether, oleic acid polyoxyethylene ether, Span-80, and Tween-80. In a more preferred embodiment, the surfactant is lauryl amidopropylamine oxide.

[0046] Specifically, the rust inhibitor includes at least one of N-oleoyl sarcosine octadecylamine salt, oleoyl sarcosine, hydroxyethylidene diphosphonic acid, diethylene triamine pentaacetic acid, tartaric acid, citric acid, succinic acid, sodium petroleum sulfonate, zinc naphthenate, alkenyl succinic acid, triacid, barium petroleum sulfonate, sodium dodecyl benzene sulfonate, barium petroleum sulfonate, zinc dodecyl benzene sulfonate, and zinc naphthenate.

[0047] In a preferred embodiment, the rust inhibitor is a complex of N-oleoyl sarcosine octadecylamine salt and sodium dodecyl benzene sulfonate. The mass ratio of N-oleoyl sarcosine octadecylamine salt to sodium dodecyl benzene sulfonate is (2-3):(4-5). The rust prevention mechanisms of N-oleoyl sarcosine octadecylamine salt and sodium dodecyl benzene sulfonate are different. N-oleoyl sarcosine octadecylamine salt prevents rust on the surface of workpieces and molds by complexation, while sodium dodecyl benzene sulfonate prevents rust on the surface of workpieces and molds by physical adsorption. The combination of N-oleoyl sarcosine octadecylamine salt and sodium dodecyl benzene sulfonate can form an effective synergistic effect. When N-oleoyl sarcosine octadecylamine salt or sodium dodecyl benzene sulfonate is used alone, the corrosion inhibition and rust prevention of the molding oil do not improve significantly.

[0048] Specifically, the metal deactivator includes at least one of thiazole derivative, benzotriazole derivative, benzotriazole, methyl benzotriazole, and sodium methyl benzotriazole. In a preferred embodiment, the metal deactivator is benzotriazole. Benzotriazole has a strong metal deactivation effect and can form an effective synergistic effect with the rust inhibitor and the antioxidant.

[0049] Specifically, the antioxidant includes at least one of 2,6-di-tert-butyl-p-cresol, 2,6-di-tert-butyl mixed phenol, N,N-diethylhydroxylamine, cyclohexylamine, N,N-di-sec-butyl-p-phenylenediamine, alkyl diphenylamine, thio carbamate, dilauryl thiodipropionate, and dioctadecyl thiodipropionate. In a preferred embodiment, the antioxidant is a complex of 2,6-di-tert-butyl-p-cresol, N,N-diethylhydroxylamine, and dioctadecyl thiodipropionate. The mass ratio of 2,6-di-tert-butyl-p-cresol to N,N-diethylhydroxylamine to dioctadecyl thiodipropionate is (0.4-0.5):(0.8-1):(1.2-1.5). The optimized amine / phenol / sulfide antioxidant complex system can form an effective synergistic effect with the metal deactivator and the rust inhibitor, so that the heavy load one-time molding oil containing a large amount of acidic substances has high corrosion inhibition and rust prevention.

[0050] Specifically, the viscosity index improver includes at least one of polyethylene n-butyl ether, polymethyl acrylate, polyacrylate, styrene polyester, hydrogenated styrene-butadiene, hydrogenated styrene-isoprene copolymer, ethylene-propylene copolymer, and polyisobutylene. In a preferred embodiment, the viscosity index improver is hydrogenated styrene-isoprene copolymer. The hydrogenated styrene-isoprene copolymer has good compatibility with oil agents and extreme pressure agents, which can ensure the stability of the water-soluble heavy load molding oil system, the high viscosity index, and the anti-oil mist performance of the water-soluble heavy load molding oil, so that the mold and the workpiece are not easily corroded.

[0051] The application also provides a preparation method of the water-soluble heavy load molding oil.

[0052] S001. Mix the oil agent, viscosity index improver, and stir at 75-80℃ until clear and transparent;

[0053] S002. Slowly add the extreme pressure agent, phosphorous acid and surfactant to the mixture obtained in step S001 in sequence, and stir until the solution is clear and transparent;

[0054] S003. Slowly add the antioxidant, metal deactivator, and rust inhibitor to the mixture obtained in step S002 in sequence, and stir until the solution is clear and transparent to obtain the water-soluble heavy load forming oil.

[0055] The preparation method provided by the present application is simple and efficient, and the equipment used in the preparation method is easy to arrange, which can be widely popularized in the forming processing industry.

[0056] In order to further illustrate the water-soluble heavy load forming oil and the preparation method provided by the present application, the following examples and comparative examples are provided.

[0057] Example 1

[0058] The present embodiment provides a water-soluble heavy load forming oil, which comprises the following components in percentage by mass: oil agent 37%, extreme pressure agent 23%, surfactant 18%, rust inhibitor 8%, phosphorous acid 6%, antioxidant 3%, metal deactivator 3%, and viscosity index improver 2%.

[0059] The oil agent is composed of tetramer castor oil acid ester, oxidized fatty acid octyl ester and tall oil fatty acid. The mass ratio of tetramer castor oil acid ester: oxidized fatty acid octyl ester: tall oil fatty acid is 5:25:7.

[0060] The surfactant is lauryl amidopropylamine oxide.

[0061] The viscosity index improver is hydrogenated styrene-isoprene copolymer. The extreme pressure agent is composed of sulfurized fatty acid ester, sulfurized isobutylene, oleyl phosphate and isomeric tridecanol polyoxyethylene ether phosphate, and the mass ratio of sulfurized fatty acid ester: sulfurized isobutylene: oleyl phosphate: isomeric tridecanol polyoxyethylene ether phosphate is 8:2:8:5.

[0062] The antioxidant is composed of 2,6-di-tert-butyl-p-cresol, N,N-diethylhydroxylamine and dioctadecyl thiodipropionate, and the mass ratio of 2,6-di-tert-butyl-p-cresol: N,N-diethylhydroxylamine: dioctadecyl thiodipropionate is 0.5:1:1.5.

[0063] The metal deactivator is benzotriazole.

[0064] The rust preventive agent is composed of N-oleoyl sarcosine octadecylamine salt and sodium dodecyl benzene sulfonate, and the mass ratio of N-oleoyl sarcosine octadecylamine salt to sodium dodecyl benzene sulfonate is 3:5.

[0065] The embodiment also provides a preparation method of the water-soluble heavy load forming oil, comprising the following steps:

[0066] S001. Mix the oiliness agent and the viscosity index improver, and stir at 75-80℃ until clear and transparent;

[0067] S002. Slowly add the extreme pressure agent, the phosphorous acid and the surfactant into the mixture obtained in step S001 in sequence, and stir until the solution is clear and transparent;

[0068] S003. Slowly add the antioxidant, the metal deactivator and the rust preventive agent into the mixture obtained in step S002 in sequence, and stir until the solution is clear and transparent to obtain the water-soluble heavy load forming oil.

[0069] Embodiment 2

[0070] The embodiment provides a water-soluble heavy load forming oil, which comprises the following components in percentage by mass: 48% of the oiliness agent, 21% of the extreme pressure agent, 16% of the surfactant, 6% of the rust preventive agent, 4% of the phosphorous acid, 2% of the antioxidant, 2% of the metal deactivator and 1% of the viscosity index improver.

[0071] The oiliness agent is composed of tetramer ricinoleic acid ester, octyl fatty acid oxidate and tall oil fatty acid, and the mass ratio of tetramer ricinoleic acid ester to octyl fatty acid oxidate to tall oil fatty acid is 9:28:11.

[0072] The surfactant is lauryl amidopropylamine oxide.

[0073] The viscosity index improver is hydrogenated styrene-isoprene copolymer, and the extreme pressure agent is composed of sulfurized fatty acid ester, sulfurized isobutylene, oleyl phosphate and isomeric tridecanol polyoxyethylene ether phosphate, and the mass ratio of sulfurized fatty acid ester to sulfurized isobutylene to oleyl phosphate to isomeric tridecanol polyoxyethylene ether phosphate is 7.5:1:5:7.5.

[0074] The antioxidant is composed of 2,6-di-tert-butyl-p-cresol, N,N-diethylhydroxylamine and dioctadecyl thiodipropionate, and the mass ratio of 2,6-di-tert-butyl-p-cresol to N,N-diethylhydroxylamine to dioctadecyl thiodipropionate is 0.4:0.8:1.2.

[0075] The metal deactivator is benzotriazole.

[0076] The rust inhibitor is composed of N-oleoyl sarcosine octadecylamine salt and sodium dodecyl benzene sulfonate, and the mass ratio of N-oleoyl sarcosine octadecylamine salt to sodium dodecyl benzene sulfonate is 2:4.

[0077] The embodiment also provides a preparation method of the water-soluble heavy load forming oil.

[0078] Embodiment 3

[0079] The embodiment provides a water-soluble heavy load forming oil, which comprises the following components in percentage by mass: oiliness agent 43%, extreme pressure agent 23%, surfactant 16%, rust inhibitor 6%, phosphorous acid 6%, antioxidant 3%, metal deactivator 2%, and viscosity index improver 1%.

[0080] The oiliness agent is composed of tetramer ricinoleic acid ester, octyl fatty acid oxidate and tall oil fatty acid, and the mass ratio of tetramer ricinoleic acid ester to octyl fatty acid oxidate to tall oil fatty acid is 7:27:9.

[0081] The surfactant is lauryl amidopropylamine oxide.

[0082] The viscosity index improver is hydrogenated styrene-isoprene copolymer, and the extreme pressure agent is composed of sulfurized fatty acid ester, sulfurized isobutylene, oleyl phosphate and isomeric tridecanol polyoxyethylene ether phosphate, and the mass ratio of sulfurized fatty acid ester to sulfurized isobutylene to oleyl phosphate to isomeric tridecanol polyoxyethylene ether phosphate is 8:2:8:5.

[0083] The antioxidant is composed of 2,6-di-tert-butyl-p-cresol, N,N-diethylhydroxylamine and dioctadecyl thiodipropionate, and the mass ratio of 2,6-di-tert-butyl-p-cresol to N,N-diethylhydroxylamine to dioctadecyl thiodipropionate is 0.5:1.0:1.5.

[0084] The metal deactivator is benzotriazole.

[0085] The rust inhibitor is composed of N-oleoyl sarcosine octadecylamine salt and sodium dodecyl benzene sulfonate, and the mass ratio of N-oleoyl sarcosine octadecylamine salt to sodium dodecyl benzene sulfonate is 2:4.

[0086] The embodiment also provides a preparation method of the water-soluble heavy load forming oil.

[0087] Comparative Example 1

[0088] The comparative example provides a water-soluble heavy load forming oil, which comprises the following components in percentage by mass: oiliness agent 37%, extreme pressure agent 23%, surfactant 18%, rust inhibitor 8%, phosphorous acid 6%, antioxidant 3%, metal deactivator 3%, and viscosity index improver 2%.

[0089] The oiliness agent is composed of tetrameric ricinoleic acid ester, octyl fatty acid oxidate and tall oil fatty acid. The mass ratio of tetrameric ricinoleic acid ester: octyl fatty acid oxidate: tall oil fatty acid is 5:25:7.

[0090] The surfactant is lauryl amidopropylamine oxide.

[0091] The viscosity index improver is hydrogenated styrene-isoprene copolymer. The extreme pressure agent is composed of sulfurized fatty acid ester and sulfurized isobutylene, and the mass ratio of sulfurized fatty acid ester: sulfurized isobutylene: oleyl phosphate: isomeric tridecanol polyoxyethylene ether phosphate is 17:6.

[0092] The antioxidant is composed of 2,6-di-tert-butyl-p-cresol, N,N-diethylhydroxylamine and dilauryl thiodipropionate, and the mass ratio of 2,6-di-tert-butyl-p-cresol: N,N-diethylhydroxylamine: dilauryl thiodipropionate is 0.5:1:1.5.

[0093] The metal deactivator is benzotriazole.

[0094] The rust inhibitor is composed of N-oleoyl sarcosine octadecylamine salt and sodium dodecylbenzenesulfonate, and the mass ratio of N-oleoyl sarcosine octadecylamine salt: sodium dodecylbenzenesulfonate is 3:5.

[0095] The present comparative example also provides a preparation method of the water-soluble heavy load forming oil, and the preparation method is the same as that in Example 1.

[0096] Comparative Example 2

[0097] The present comparative example provides a water-soluble heavy load forming oil, which comprises the following components in percentage by mass: oiliness agent 37%, extreme pressure agent 23%, surfactant 18%, rust inhibitor 8%, phosphorous acid 6%, antioxidant 3%, metal deactivator 3%, and viscosity index improver 2%.

[0098] The oiliness agent is composed of tetrameric ricinoleic acid ester, octyl fatty acid oxidate and tall oil fatty acid. The mass ratio of tetrameric ricinoleic acid ester: octyl fatty acid oxidate: tall oil fatty acid is 5:25:7.

[0099] The surfactant is lauryl amidopropylamine oxide.

[0100] The viscosity index improver is hydrogenated styrene-isoprene copolymer. The extreme pressure agent is composed of sulfurized fatty acid ester, sulfurized isobutylene, oleyl phosphate and isomeric tridecanol polyoxyethylene ether phosphate, and the mass ratio of sulfurized fatty acid ester: sulfurized isobutylene: oleyl phosphate: isomeric tridecanol polyoxyethylene ether phosphate is 8:2:8:5.

[0101] The antioxidant is composed of 2,6-di-tert-butyl-p-cresol, N,N-diethylhydroxylamine and thiodipropionic acid bis-octadecyl ester, and the mass ratio of 2,6-di-tert-butyl-p-cresol:N,N-diethylhydroxylamine:thiodipropionic acid bis-octadecyl ester is 0.5:1:1.5.

[0102] The metal deactivator is benzotriazole. The antirust agent is sodium dodecyl benzene sulfonate.

[0103] The present comparative example also provides a preparation method of the water-soluble heavy load forming oil, and the preparation method is the same as that in Example 1.

[0104] Comparative Example 3: Commercial heavy load forming oil (UWP Forming Oil WW).

[0105] The water-soluble heavy load forming oils provided in Examples 1 to 3 and Comparative Examples 1 to 3 and the commercial heavy load forming oil are subjected to performance tests, and the test items include extreme pressure performance, kinematic viscosity, viscosity index, anti-oxidation performance, copper strip corrosion performance, carbon steel corrosion performance and flash point.

[0106] Among them, the extreme pressure performance test of the forming oil is carried out according to GB / T 12583-1998 “Determination of Extreme Pressure Performance of Lubricants (Four-ball)”, and the maximum non-seizure load (P B ) and sintering point (P D ) are tested. Test instrument model: Xiamen Tianji MS-10A.

[0107] The kinematic viscosity test and viscosity index calculation method of the forming oil are carried out according to GB / T 265-1988 “Determination of Kinematic Viscosity of Petroleum Products and Calculation of Dynamic Viscosity”. Test instrument model: Dalian North BF-03F.

[0108] The anti-oxidation performance test of the forming oil is carried out according to SH / T 0193-2008 “Determination of Oxidation Stability of Lubricating Oil by Rotating Bomb Method”, and the oxidation time is tested. Test instrument model: Jining JSH0101.

[0109] The copper strip corrosion performance test of the forming oil is carried out according to GB / T 5096-2017 “Liquefied Petroleum Gas Copper Strip Corrosion”.

[0110] The carbon steel corrosion performance test of the forming oil is carried out according to GB / T 6144-2010 “Synthetic Cutting Fluid”.

[0111] The flash point test of the forming oil is carried out according to GB / T 3536-2008 “Determination of Flash and Fire Points of Petroleum Products Cleveland Open Cup Method”. Test instrument model: Zhonghui ZHK303.

[0112] The test results are shown in the following table:

[0113]

[0114] In the test results of the above table, the copper sheet corrosion grade 1B is better than grade 4A, and the carbon steel corrosion grade A is better than grade B and grade C. As can be seen from the test results of the above table, the water-soluble heavy load forming oil provided by examples 1 to 3 has better performance indicators than the commercially available heavy load forming oil in comparative example 3.

[0115] The extreme pressure performance of the water-soluble heavy load forming oil provided by comparative example 1 is weaker than that of the water-soluble heavy load forming oil provided by examples 1 to 3, because in comparative example 1, the extreme pressure agent is only composed of sulfurized fatty acid ester and sulfurized isobutylene, and cannot enhance the lubrication effect under heavy load. The corrosion performance of the water-soluble heavy load forming oil provided by comparative example 2 is not as good as that of the water-soluble heavy load forming oil provided by examples 1 to 3, because in the water-soluble heavy load forming oil provided by comparative example 2, the rust inhibitor is only sodium dodecyl benzene sulfonate, and cannot form an effective synergistic effect, and the corrosion resistance and rust resistance of the forming oil are not obviously improved.

[0116] The above description is only the preferred embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made under the inventive concept of the present application, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. A water-soluble heavy duty forming oil characterized by, By mass percentage, it is composed of the following components: Oily agent 37-48%, extreme pressure agent 21-23%, surfactant 16-18%, anti-rust agent 6-8%, phosphorous acid 4-6%, antioxidant 2-3%, metal deactivator 2-3%, viscosity index improver 1-2%; The oily agent includes tetramer castor oil acid ester, oxidized fatty acid octyl ester and tall oil fatty acid; the mass ratio of tetramer castor oil acid ester: oxidized fatty acid octyl ester: tall oil fatty acid is (5-7.5):(25-28):(7-11); The anti-rust agent is a compound of N-octanoyl sarcosine octadecylamine salt and sodium dodecylbenzenesulfonate; the mass ratio of N-octanoyl sarcosine octadecylamine salt: sodium dodecylbenzenesulfonate is (2-3):(4-5); The extreme pressure agent includes sulfur-based extreme pressure agent, oil-soluble phosphorus-based extreme pressure agent and water-soluble phosphorus-based extreme pressure agent; The sulfur-based extreme pressure agent is a compound of sulfurized fatty acid and sulfurized isobutylene; the oil-soluble phosphorus-based extreme pressure agent is oleyl alcohol phosphate; the water-soluble phosphorus-based extreme pressure agent is isomeric tridecanol polyoxyethylene ether phosphate; the mass ratio of sulfurized fatty acid ester: sulfurized isobutylene: oleyl alcohol phosphate: isomeric tridecanol polyoxyethylene ether phosphate is (7.5-8):(1.5-2):(7-8):

5.

2. The water-soluble heavy duty drape of claim 1, wherein, The surfactant includes at least one of lauryl amide propylamine oxide, beef tallow amine polyoxyethylene ether, oleyl amine polyoxyethylene ether, dodecyl amine polyoxyethylene ether, fatty alcohol polyoxyethylene ether, alkyl phenol polyoxyethylene ether, oleyl alcohol polyoxyethylene ether, oleic acid polyoxyethylene ether, Span-80, Tween-80.

3. The water-soluble heavy duty drape of claim 1, wherein, The metal deactivator includes at least one of thiadiazole derivative, benzotriazole derivative, benzotriazole, methyl benzotriazole, methyl benzotriazole sodium salt.

4. The water-soluble heavy duty drape of claim 1, wherein, The antioxidant includes at least one of 2,6-di-tert-butyl-p-cresol, 2,6-di-tert-butyl mixed phenol, N,N-diethylhydroxylamine, cyclohexylamine, N,N-di-sec-butyl-p-phenylenediamine, alkyl diphenylamine, thio carbamic acid ester, dilauryl thiodipropionate, dioctadecyl thiodipropionate.

5. The water-soluble heavy duty drape of claim 1, wherein, The viscosity index improver is at least one of polyethylene n-butyl ether, polymethacrylate, polyacrylate, styrene polyester, hydrogenated styrene-butadiene, hydrogenated styrene-isoprene copolymer, ethylene-propylene copolymer, polyisobutylene.

6. A process for the preparation of a water-soluble heavy duty profiled oil as claimed in any one of claims 1 to 5, characterized in that, The method comprises the following steps: S001. Mix the oily agent and the viscosity index improver, and stir at 75-80℃ until clear and transparent; S002. Slowly add the extreme pressure agent, phosphorous acid and surfactant to the mixture obtained in step S001 in sequence, and stir until the solution is clear and transparent; S003. Slowly add the antioxidant, metal deactivator and anti-rust agent to the mixture obtained in step S002 in sequence, and stir until the solution is clear and transparent to obtain the water-soluble heavy load forming oil.

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