A non-polyester polymer cold forging oil and its preparation method

Abstract

A non-polyester polymer cold forging forming oil and its preparation method are disclosed. The raw materials for preparing the non-polyester polymer cold forging forming oil consist of the following components: a polymer for use in cold forging forming oil, nonyl-N-(nonylphenyl)aniline, base oil (paraffinic), sorbitan fatty acid ester-80, high-alkali calcium petroleum sulfonate, sulfurized lard, diisododecyl polysulfide, and oleyl alcohol phosphate. The raw materials for preparing the polymer for use in cold forging forming oil are composed of ethylene, propylene, 2,6-diisobutylphenol, and diene, wherein the diene has unsaturated double bonds. This cold forging forming oil uses a self-made polymer to increase the viscosity and viscosity index of the oil, enabling the oil to maintain a certain adhesion at high temperatures, providing good physical lubrication and allowing the extreme pressure agents in the oil to also provide extreme pressure lubrication. This invention also provides a polymer for use in cold forging forming oil and a method for preparing the non-polyester polymer cold forging forming oil.

Description

Technical Field

[0001] This invention relates to the field of cold forging auxiliary materials technology, and in particular to a non-polyester polymer cold forging forming oil and its preparation method. Background Technology

[0002] Fasteners are typically formed using cold forging, a process that utilizes cold forging oil. High-quality cold forging oil is often required, especially when machining complex and large workpieces. The viscosity of the cold forging oil directly and significantly affects its adhesion. Furthermore, the substantial heat generated during processing raises the oil temperature, leading to a decrease in viscosity and consequently, a reduction or even complete absence of adhesion. This prevents the extreme pressure additives in the cold forging oil from effectively fulfilling their function.

[0003] As is well known, the viscosity index (ASTM D2270) of oils is calculated based on their kinematic viscosity (ASTM D445) at 40°C and 100°C. A higher viscosity index indicates better resistance to temperature changes, and less viscosity decreases as temperature rises.

[0004] In the current market, the viscosity index of Group I and Group II oils meeting national standards is approximately 95-110. Taking national standard 100# base oil as an example, its kinematic viscosity at 40℃ is approximately 93 cSt, and its kinematic viscosity at 100℃ is approximately 11 cSt, with a viscosity index of 108. In existing technology, using the aforementioned national standard 100# base oil as an example, various additives can be added for molding processes. When facing complex molding conditions, polymers such as polyisobutylene, petroleum resins, and polyesters are commonly used in the market to increase the formulation viscosity and improve the viscosity index, thereby increasing the adhesion and allowing the additives to exert their due effect to meet the molding process requirements.

[0005] However, because polyisobutylene, petroleum resins, trimethyl propane oleate (TMPTO), and polyesters require large additions to effectively increase the viscosity index, their costs are high, and their viscosity-increasing effect is limited, hindering widespread adoption and cost reduction. For example, the kinematic viscosity of pure trimethyl propane oleate at 40°C is 46 cSt and 68 cSt according to existing grades, with a viscosity index of approximately 170. Adding 30% to 150N base oil produces a cold-forging oil with a viscosity index no higher than 125. The same applies to polyisobutylene, petroleum resins, and polyesters. Furthermore, due to its inherent viscosity, trimethyl propane oleate cannot increase the viscosity of base oils meeting national standard 100 or higher. Summary of the Invention

[0006] In view of this, the present invention provides a non-polyester polymer cold forging oil that can solve the above problems and a method for preparing the same.

[0007] A non-polyester polymer cold forging forming oil, wherein the raw materials for preparing the non-polyester polymer cold forging forming oil are composed of the following components per 100 parts: 2.0-4.0 parts of polymer used in cold forging forming oil, 0.3-0.5 parts of nonyl-N-(nonylphenyl)aniline, 75.0-95.0 parts of base oil (paraffinic), 0.5-1.0 parts of sorbitan fatty acid ester-80, 1.0-1.5 parts of high-alkali petroleum sulfonate calcium, 3.5-5.5 parts of sulfurized lard, 1.0-2.0 parts of diisododecyl polysulfide, and 1.5-2.5 parts of oleyl alcohol phosphate. The raw material for preparing the polymer used in cold forging forming oil is composed of ethylene, propylene, 2,6-diisobutylphenol, and diene. In a 100-part quantity, the ethylene comprises 70.0-85.3 parts, the propylene comprises 10.0-25.0 parts, the 2,6-diisobutylphenol comprises 0.3-0.5 parts, and the diene comprises 1.0-3.5 parts, wherein the diene has unsaturated double bonds.

[0008] Furthermore, in preparing the polymer for use in cold forging forming oil, ethylene and propylene are first added to the pressure reactor and mixed uniformly.

[0009] Furthermore, after mixing the ethylene and propylene, the 2,6-diisobutylphenol is added to slow down the oxidation of the ethylene and propylene.

[0010] Further, after adding the 2,6-diisobutylphenol, the diene having unsaturated double bonds is added to initiate polymerization to obtain the polymer used in cold forging forming oil.

[0011] Furthermore, after obtaining the polymer used in cold forging oil, it is cooled to room temperature and then sheared and crushed.

[0012] A method for preparing a non-polyester polymer cold forging forming oil as described above, comprising the following steps: First, preparing a polymer for use in cold forging forming oil.

[0013] STEP101: Provides raw materials for preparing polymers used in cold forging forming oils;

[0014] STEP102: Provide a pressure reactor and put all the ethylene and propylene into the pressure reactor; increase the pressure to 1800psi-2000psi; after increasing the pressure to the corresponding pressure, raise the temperature to 120℃-140℃ and stir at a stirring speed of 180rpm-220rpm to make it uniformly mixed.

[0015] STEP103: Add the 2,6-diisobutylphenol, stir at 200 rpm for 2 to 4 hours;

[0016] STEP 104: Add the diene with unsaturated double bonds to initiate polymerization, maintain the aforementioned pressure and temperature, and increase the stirring speed to 300 rpm to 400 rpm, maintain for 1.5 to 3 hours, so that it is chained to obtain a polymer applicable to cold forging forming oil;

[0017] STEP 105: Cool the polymer prepared for use in cold forging to room temperature and form an elastic solid. Then, shear and break the solid for later use.

[0018] After obtaining the polymer used in cold forging forming oil, the non-polyester polymer cold forging forming oil is prepared by the following steps:

[0019] STEP201: Provide the raw materials for preparing the cold forging forming oil;

[0020] STEP202: Heat the polymer, nonyl-N-(nonylphenyl)aniline, and GB 32 base oil (paraffinic) at 125℃-135℃ for more than 90 minutes until a single-phase viscous liquid is formed, and then cool it down to 60℃-80℃.

[0021] STEP203: Add dehydrated sorbitol fatty acid ester-80. After it dissolves evenly, the viscous liquid will change from colorless to pale yellow.

[0022] STEP204: Add high-alkali calcium petroleum sulfonate and dissolve it evenly;

[0023] STEP205: Add sulfurized lard, diisododecyl polysulfide, and oleyl alcohol phosphate to dissolve them evenly to obtain the non-polyester polymer cold forging oil.

[0024] Furthermore, in step STEP102, the pressure is increased to 1900 psi, and when the pressure reaches 1900 psi, the temperature is increased to 130°C.

[0025] Furthermore, in step STEP 103, the temperature is maintained at 130-165°C and the pressure is maintained at 1700-1900 psi.

[0026] Furthermore, the base oil is GB 32 oil.

[0027] Furthermore, in STEP104, after the diene is added to initiate polymerization, the stirring rate is 360 rpm.

[0028] Compared with existing technologies, the non-polyester polymer cold forging oil provided by this invention uses a self-made polymer to improve the viscosity and viscosity index of the oil, giving it good resistance to temperature changes. This allows the oil to maintain a certain adhesion even at high temperatures, providing not only good physical lubrication but also enabling extreme pressure lubrication of extreme pressure agents (such as sulfurized lard, diisododecyl polysulfide, and oleyl alcohol phosphate). Specifically, the self-made polymer is made from ethylene, propylene, 2,6-diisobutylphenol, and dienes. It is soluble in paraffinic base oils and can dissolve well in them. The ethylene, propylene, 2,6-diisobutylphenol, and dienes are polymerized to form a high-temperature resistant polymer with high adhesion at high temperatures, making this polymer a suitable candidate for a cold forging oil. When the mixture is heated to 130°C and an amine antioxidant, nonyl-N-(nonylphenyl)aniline, is added, it slows down the oxidation reaction of various substances at this temperature. Then, sorbitol fatty acid ester-80 is added sequentially to increase the solubility of the polymer. The addition of high-alkali petroleum sulfonate not only makes the cold forging oil easy to clean, but also improves its lubrication, rust prevention, and sintering load. The addition of sulfurized lard gives the cold forging oil good PB and anti-wear ability. At the same time, the high-temperature adhesion ability of the cold forging oil can effectively protect the punch and die of the cold forging machine. Finally, diisododecyl polysulfide and oleyl alcohol phosphate are added to increase the extreme pressure capacity of the formula, that is, improve the sintering load capacity, non-seizing load, and increase the protection of metals. This makes the cold forging oil a comprehensive and high-performance cold forging oil. Detailed Implementation

[0029] The following provides a more detailed description of specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the scope of protection of the present invention.

[0030] The present invention provides a method for preparing a polymer for use in cold forging forming oil, comprising the following steps:

[0031] STEP101: Provides a raw material for preparing a polymer for use in cold forging forming oil, comprising ethylene, propylene, 2,6-diisobutylphenol, and a diene, wherein, based on 100 parts, the ethylene comprises 70.0-85.3 parts, the propylene comprises 10.0-25.0 parts, the 2,6-diisobutylphenol comprises 0.3-0.5 parts, and the diene comprises 1.0-3.5 parts, wherein the diene has unsaturated double bonds;

[0032] STEP102: Provide a pressure reactor and add all the ethylene and propylene into the pressure reactor. Increase the pressure to 1800psi-2000psi. After increasing the pressure to the appropriate level, raise the temperature to 120℃-140℃ and stir at a stirring rate of 180rpm / min~220rpm / min to ensure uniform mixing.

[0033] STEP103: Add the 2,6-diisobutylphenol, stir at a speed of 200 rpm / min, and stir for 2 to 4 hours;

[0034] STEP 104: Add the diene with unsaturated double bonds to initiate polymerization, maintain the aforementioned pressure and temperature, and increase the stirring speed to 300 rpm / min to 400 rpm / min, maintain for 1.5 to 3 hours, so that it is chained to obtain a polymer applicable to cold forging forming oil;

[0035] STEP105: Cool the polymer prepared for use in cold forging to room temperature and form an elastic solid. Then, shear and break the solid for later use.

[0036] In step STEP 102, ethylene and propylene are mixed under high pressure and high temperature to form a homogeneous mixture as the starting material for the polymer reaction. The amount of ethylene is strictly limited to 70.0-85.3 parts. If the amount of ethylene is less than 70 parts, the product after polymerization and cooling will be a viscous liquid, which will have a poor thickening effect on the base oil. If the amount of ethylene is more than 85.3 parts, the product after polymerization will be a hard, inelastic solid, which is not conducive to cold forging. Similarly, the amount of propylene should be limited to 10.0-25.0 parts. Less than 10 parts will result in a viscous liquid after polymerization and cooling, with little thickening effect on the base oil. More than 25 parts will result in a product that is not good at increasing the viscosity index. During the mixing process, the pressure is first increased to 1800-2000 psi, preferably to 1900 psi. This pressure increase helps to rapidly raise the subsequent temperature. During the heating process, the temperature should eventually be raised to 120℃-140℃, preferably to 130℃. Experiments have confirmed that a temperature of 130℃ can better initiate polymerization and result in less byproduct production.

[0037] In step STEP 103, the addition of 2,6-diisobutylphenol serves to slow down the oxidation of ethylene and propylene due to high temperature and pressure, and also increases the antioxidant capacity of the polymerization product. Simultaneously, in step STEP 103, the temperature is maintained at 130-165°C and the pressure at 1700-1900 psi. Maintaining this temperature keeps the reactants and products in a liquid state during the reaction process, and maintaining this pressure increases the reaction rate. However, the temperature must not exceed 130-165°C, because below 130°C, the reactants in the reactor may form an extremely viscous liquid, making it impossible for the agitator and pump to operate. Above 165°C, the final product may appear orange-yellow and burnt, with a burnt odor, affecting the viscosity and color of the subsequently prepared molding oil, which is unacceptable. Similarly, the pressure must not exceed 1700-1900 psi, as insufficient pressure or exceeding the upper limit may lead to incomplete polymerization.

[0038] In step STEP 104, the diene, as the third monomer in the polymerization, must have unsaturated double bonds in order to have a cross-linked structure.

[0039] The present invention provides a method for preparing a cold forging forming oil, which includes the following steps:

[0040] STEP201: Provide raw materials for preparing the cold forging forming oil, the raw materials comprising a polymer for use in cold forging forming oil prepared by the above-described preparation method, nonyl-N-(nonylphenyl)aniline (Benzenamine, ar-nonyl-N-(nonylphenyl)-), base oil (paraffinic), sorbitan fatty acid ester-80, high-alkali petroleum sulfonate calcium, sulfurized lard, diisododecyl polysulfide, and oleyl alcohol phosphate. (The last part, "100," appears to be an incomplete sentence or fragment and is left untranslated.) The composition comprises, by weight, 2.0-4.0 parts of polymer, 0.3-0.5 parts of nonyl-N-(nonylphenyl)aniline, 75.0-95.0 parts of GB 32 base oil (paraffinic), 0.5-1.0 parts of sorbitol fatty acid ester-80, 1.0-1.5 parts of high-alkali petroleum sulfonate calcium, 3.5-5.5 parts of sulfurized lard, 1.0-2.0 parts of diisododecyl polysulfide, and 1.5-2.5 parts of oleyl phosphate.

[0041] STEP202: Heat the polymer, nonyl-N-(nonylphenyl)aniline, and base oil (paraffinic) at 125℃-135℃ for more than 90 minutes with stirring until a single-phase viscous liquid is formed, and then cool it down to 60℃-80℃.

[0042] STEP203: Add dehydrated sorbitol fatty acid ester-80. After it dissolves evenly, the viscous liquid will change from colorless to pale yellow.

[0043] STEP204: Add high-alkali calcium petroleum sulfonate and dissolve it evenly;

[0044] STEP205: Add sulfurized lard, diisododecyl polysulfide, and oleyl alcohol phosphate to dissolve them evenly to obtain the non-polyester polymer cold forging oil.

[0045] In step STEP201, the base oil can be GB 32, GB 68, GB 100, etc. In this embodiment, the base oil is paraffin-based GB 32.

[0046] In step STEP 202, the polymer, nonyl-N-(nonylphenyl)aniline, and base oil (paraffinic) are first mixed. The purpose of this mixing is to thicken the base oil with the polymer. Due to the properties of the polymer, it requires heating to approximately 130°C to dissolve in the base oil; therefore, nonyl-N-(nonylphenyl)aniline must be added. This nonyl-N-(nonylphenyl)aniline slows down the oxidation of the polymer and base oil caused by high temperatures. The single-phase viscous liquid formed in this step is still a mixture and has not yet reacted. Cooling to 60°C-80°C facilitates viscosity adjustment in the formulation. For example, at 70°C, the measured viscosity is 68 cSt, which is beneficial for mixing with other raw materials. At temperatures below 60°C, taking 40°C as an example, the measured viscosity of the mixture is 222 cSt, which is not conducive to mixing with other raw materials. At temperatures above 80°C, although the viscosity is thinner and easier to mix, the production process may generate oil mist, consume a lot of energy, and accelerate the consumption of antioxidants.

[0047] In step STEP 203, the addition of the dehydrated sorbitol fatty acid ester-80 serves as a solubilizer, allowing the components from STEP 204 to dissolve better in the formulation, and also making the cold forging oil easier to clean during user use. Simultaneously, the amount of dehydrated sorbitol fatty acid ester-80 must be limited to 0.5 to 1.0 parts. Less than 0.5 parts results in a negligible solubilizing effect, while more than 1.0 parts only increase cost without improving solubility.

[0048] In step STEP 204, the high-alkali calcium petroleum sulfonate gives the cold forging oil easy-to-clean properties, while also improving lubrication, rust prevention, and increasing sintering load, thus enhancing the overall functionality of the cold forging oil. However, its proportion should be limited to 1.0 to 1.5 parts. Below 1.0, it will not significantly improve the sintering load of the formulation, while above 1.5 parts, due to the inherent properties of the substance, precipitation will occur in the product after prolonged storage.

[0049] In step STEP 205, the sulfurized lard imparts good PB (ASTM D2783) and anti-wear properties to this cold forging forming oil. Simultaneously, the high-temperature adhesion of this cold forging forming oil effectively protects the punches and dies of the cold forging machine. The amount of sulfurized lard should be limited to 3.5-5.5 parts. Below 3.5 parts, the sintering load (PD as described in the four-ball abrasion test) and the non-seizure load (PB as described in the four-ball abrasion test) of the formulation cannot be significantly improved. Above 5.5 parts, due to the extreme pressure effect of sulfur, it will exacerbate the wear of metal processing dies, and the formulation will have a strong sulfur odor.

[0050] The diisododecyl polysulfide can increase the extreme pressure capability of the formulation, but the amount of diisododecyl polysulfide should be limited to 1.0-2.0 parts. When it is less than 1.0 parts, the sintering load (PD in the four-ball wear test) and the non-seize load (PB in the four-ball wear test) of the formulation cannot be significantly improved. When it is more than 2.0 parts, the extreme pressure effect of sulfur will aggravate the wear of metal processing molds.

[0051] The oleyl phosphate ester can increase extreme pressure capability, smooth metal surfaces, protect non-ferrous metals, and make the oil easier to clean. The oleyl phosphate ester is present in a concentration of 1.5-2.5 parts. When the concentration is below 1.5 parts, the non-seize load (PB as described in the four-ball abrasion test) of the formulation cannot be significantly improved. When the concentration is above 2.5 parts, the performance of the formulation will not be improved, but the cost will increase. Specific Implementation

[0052] Example 1: The raw materials of the polymer used in cold forging forming oil, per 100 parts, include: 79.8 parts of ethylene, 18 parts of propylene, 0.4 parts of 2,6-diisobutylphenol, and 1.8 parts of diene.

[0053] The raw materials for preparing the cold forging forming oil, per 100 parts, include: 2.5 parts of polymer for cold forging forming oil, 0.35 parts of nonyl-N-(nonylphenyl)aniline, 87.15 parts of base oil (paraffinic), 0.7 parts of sorbitol fatty acid ester-80, 1.2 parts of high-alkali petroleum sulfonate calcium, 4.7 parts of sulfurized lard, 1.5 parts of diisododecyl polysulfide, and 1.9 parts of oleyl alcohol phosphate.

[0054] Example 2: The raw materials of the polymer used in cold forging forming oil, per 100 parts, include: 75.1 parts of ethylene, 22 parts of propylene, 0.4 parts of 2,6-diisobutylphenol, and 2.5 parts of diene.

[0055] The raw materials for preparing the cold forging oil, in parts per 100, include: 3.5 parts polymer, 0.4 parts nonyl-N-(nonylphenyl)aniline, 84.7 parts national standard No. 32 base oil (paraffinic), 0.8 parts sorbitol fatty acid ester-80, 1.3 parts high-alkali petroleum sulfonate calcium, 5.2 parts sulfurized lard, 1.9 parts diisododecyl polysulfide, and 2.2 parts oleyl alcohol phosphate.

[0056] The parameter table is a comparison of the tested oil with commercially available No. 8 forming oil and commercially available high-grade cold forging oil.

[0057] Among the three oils in the table above, the viscosity measured at 40°C is similar, but the viscosity varies greatly at 100°C. This indicates that the non-polyester polymer cold forging oil is more likely to adhere to the surface of the metal being processed at high temperatures, which helps to improve lubrication.

[0058] Based on the viscosity index calculated at 40℃ and 100℃, it can be determined that the non-polyester polymer cold forging oil has good resistance to temperature changes.

[0059] Based on the maximum non-seize load (PB), it can be determined that the non-polyester polymer cold forging oil can withstand high forging pressure.

[0060] Based on the sintering point (PD), it can be determined that the non-polyester polymer cold forging oil does not sinter when the pressure per unit area at its contact point exceeds 800 kgf, which is significantly better than the oils in the prior art.

[0061] Based on the wear diameter of the four balls, it can be determined that the non-polyester polymer cold forging oil has a good anti-wear mechanism, which can effectively protect the metal on the friction pair and prevent wear.

[0062] To verify the lubrication performance of the oil at high temperatures, the oil temperature was heated to about 100°C, and then a torque test was performed. It was found that at this temperature, the non-polyester polymer cold forging oil caused relatively little resistance to the friction pair, indicating that the non-polyester polymer cold forging oil has good lubrication capabilities.

[0063] Compared with existing technologies, the non-polyester polymer cold forging oil provided by this invention uses a self-made polymer to improve the viscosity and viscosity index of the oil, giving it good resistance to temperature changes. This allows the oil to maintain a certain adhesion even at high temperatures, providing not only good physical lubrication but also enabling extreme pressure lubrication of extreme pressure agents (such as sulfurized lard, diisododecyl polysulfide, and oleyl alcohol phosphate). Specifically, the self-made polymer is made from ethylene, propylene, 2,6-diisobutylphenol, and dienes. It is soluble in paraffinic base oils and can dissolve well in them. The ethylene, propylene, 2,6-diisobutylphenol, and dienes are polymerized to form a high-temperature resistant polymer with high adhesion at high temperatures, making this polymer a suitable candidate for a cold forging oil. When the mixture is heated to 130°C and a phenolic antioxidant, nonyl-N-(nonylphenyl)aniline, is added, it slows down the oxidation reaction of various substances at this temperature. Then, sorbitol fatty acid ester-80 is added to increase the solubility of the polymer. The addition of high-alkali petroleum sulfonate not only makes the cold forging oil easy to clean, but also improves its lubrication, rust prevention, and sintering load. The addition of sulfurized lard gives the cold forging oil good PB and anti-wear ability. At the same time, the high-temperature adhesion ability of the cold forging oil can effectively protect the punch and die of the cold forging machine. Finally, diisododecyl polysulfide and oleyl phosphate are added to increase the extreme pressure capacity of the formula, that is, improve the sintering load capacity, non-seizing load, and increase the protection of metal. This makes the cold forging oil a comprehensive and high-performance cold forging oil.

[0064] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions or improvements within the spirit of the present invention are covered within the scope of the claims of the present invention.

Claims

1. A non-polyester polymer cold forging oil, characterized in that: The raw materials for preparing the non-polyester polymer cold forging oil consist of the following components per 100 parts: 2.0-4.0 parts of the polymer used in the cold forging oil, 0.3-0.5 parts of nonyl-N-(nonylphenyl)aniline, 75.0-95.0 parts of paraffinic base oil, 0.5-1.0 parts of sorbitan fatty acid ester-80, 1.0-1.5 parts of high-alkali petroleum sulfonate calcium, 3.5-5.5 parts of sulfurized lard, 1.0-2.0 parts of diisododecyl polysulfide, and 1.5 parts of oleyl alcohol phosphate ester. 2.5 parts, raw materials for preparing the polymer used in cold forging forming oil, which are composed of ethylene, propylene, 2,6-diisobutylphenol, and diene, in a weight of 100 parts, wherein the ethylene accounts for 70.0-85.3 parts, the propylene accounts for 10.0-25.0 parts, the 2,6-diisobutylphenol accounts for 0.3-0.5 parts, and the diene accounts for 1.0-3.5 parts, and the diene has unsaturated double bonds. The preparation method of the non-polyester polymer cold forging forming oil is to first prepare the polymer used in cold forging forming oil, which includes the following steps: STEP101: Provides raw materials for preparing polymers used in cold forging forming oils; STEP102: Provide a pressure reactor and put all the ethylene and propylene into the pressure reactor; increase the pressure to 1800psi-2000psi; after increasing the pressure to the corresponding pressure, raise the temperature to 120℃-140℃ and stir at a stirring speed of 180rpm-220rpm to make it uniformly mixed. STEP103: Add the 2,6-diisobutylphenol, stir at 200 rpm for 2 to 4 hours; STEP 104: Add the diene with unsaturated double bonds to initiate polymerization, maintain the aforementioned pressure and temperature, and increase the stirring speed to 300 rpm to 400 rpm, maintain for 1.5 to 3 hours, so that it is chained to obtain a polymer applicable to cold forging forming oil; STEP 105: Cool the polymer prepared for use in cold forging to room temperature and form an elastic solid. Then, shear and break the solid for later use. After obtaining the polymer used in cold forging forming oil, the non-polyester polymer cold forging forming oil is prepared by the following steps: STEP201: Provide the raw materials for preparing the cold forging forming oil; STEP202: Heat the polymer, nonyl-N-(nonylphenyl)aniline, and paraffinic base oil at 125℃-135℃ for more than 90 minutes with stirring until a single-phase viscous liquid is formed, and then cool it down to 60℃-80℃. STEP203: Add dehydrated sorbitol fatty acid ester-80. After it dissolves evenly, the viscous liquid will change from colorless to pale yellow. STEP204: Add high-alkali calcium petroleum sulfonate and dissolve it evenly; STEP205: Add sulfurized lard, diisododecyl polysulfide, and oleyl alcohol phosphate to dissolve them evenly to obtain the non-polyester polymer cold forging oil.

2. The non-polyester polymer cold forging oil as described in claim 1, characterized in that: After mixing the ethylene and propylene, the 2,6-diisobutylphenol is added to slow down the oxidation of the ethylene and propylene.

3. A method for preparing a non-polyester polymer cold forging forming oil as described in any one of claims 1 to 2, comprising first preparing a polymer for use in the cold forging forming oil, which includes the following steps: STEP101: Provides raw materials for preparing polymers used in cold forging forming oils; STEP102: Provide a pressure reactor and put all the ethylene and propylene into the pressure reactor; increase the pressure to 1800psi-2000psi; after increasing the pressure to the corresponding pressure, raise the temperature to 120℃-140℃ and stir at a stirring speed of 180rpm-220rpm to make it uniformly mixed. STEP103: Add the 2,6-diisobutylphenol, stir at 200 rpm for 2 to 4 hours; STEP 104: Add the diene with unsaturated double bonds to initiate polymerization, maintain the aforementioned pressure and temperature, and increase the stirring speed to 300 rpm to 400 rpm, maintain for 1.5 to 3 hours, so that it is chained to obtain a polymer applicable to cold forging forming oil; STEP 105: Cool the polymer prepared for use in cold forging to room temperature and form an elastic solid. Then, shear and break the solid for later use. After obtaining the polymer used in cold forging forming oil, the non-polyester polymer cold forging forming oil is prepared by the following steps: STEP201: Provide the raw materials for preparing the cold forging forming oil; STEP202: Heat the polymer, nonyl-N-(nonylphenyl)aniline, and paraffin base oil at 125℃-135℃ for more than 90 minutes with stirring until a single-phase viscous liquid is formed, and then cool it down to 60℃-80℃. STEP203: Add dehydrated sorbitol fatty acid ester-80. After it dissolves evenly, the viscous liquid will change from colorless to pale yellow. STEP204: Add high-alkali calcium petroleum sulfonate and dissolve it evenly; STEP205: Add sulfurized lard, diisododecyl polysulfide, and oleyl alcohol phosphate to dissolve them evenly to obtain the non-polyester polymer cold forging oil.

4. The method for preparing the non-polyester polymer cold forging forming oil as described in claim 3, characterized in that: In step STEP102, the pressure is increased to 1900 psi, and when the pressure reaches 1900 psi, the temperature is increased to 130°C.

5. The preparation method of the non-polyester polymer cold forging oil as described in claim 3, characterized in that: In step STEP 103, the temperature is maintained at 130-165 °C and the pressure is maintained at 1700-1900 psi.

6. The method for preparing the non-polyester polymer cold forging forming oil as described in claim 3, characterized in that: The paraffin base oil is GB 32 oil.

7. The method for preparing the non-polyester polymer cold forging forming oil as described in claim 3, characterized in that: In STEP104, after the diene is added to initiate polymerization, the stirring rate is 360 rpm.