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CN-121975565-A - Environment-friendly residue-free aluminum product processing oil composition and preparation method thereof

CN121975565ACN 121975565 ACN121975565 ACN 121975565ACN-121975565-A

Abstract

The application relates to the technical field of aluminum product processing oil, and particularly discloses an environment-friendly residue-free aluminum product processing oil composition and a preparation method thereof. The environment-friendly residue-free aluminum product processing oil composition comprises, by weight, 60-100 parts of polyethylene glycol ether, 2-17 parts of synthetic ester, 0.5-2.5 parts of antioxidant, 0.1-0.5 part of metal corrosion inhibitor and 0.1-3 parts of tackifier, wherein the synthetic ester comprises star-shaped composite ester, and the raw materials of the star-shaped composite ester comprise pentaerythritol, oleic acid, phenylphosphonic acid and boric acid. The environment-friendly residue-free aluminum product processing oil composition can be used for molding and processing aluminum products, can effectively inhibit oxidation caused by high-temperature friction heat, metal catalysis and other factors in the cyclic heating process under the heavy-load high-temperature working condition, can realize almost no residue after the aluminum product is post-treated at 540 ℃, ensures the bright and color-free surface of the aluminum product, and omits the subsequent cleaning procedure.

Inventors

  • HUANG DIAN

Assignees

  • 湖北博达特种润滑剂有限公司

Dates

Publication Date
20260505
Application Date
20260123

Claims (9)

  1. 1. The environment-friendly residue-free aluminum product processing oil composition is characterized by comprising, by weight, 60-100 parts of polyethylene glycol ether, 2-17 parts of synthetic ester, 0.5-2.5 parts of antioxidant, 0.1-0.5 part of metal corrosion inhibitor and 0.1-3 parts of tackifier; The synthetic ester comprises a star-shaped composite ester, and the raw materials of the star-shaped composite ester comprise pentaerythritol, oleic acid, phenylphosphonic acid and boric acid.
  2. 2. The environmentally friendly residue-free aluminum processing oil composition according to claim 1, wherein the molar ratio of pentaerythritol, oleic acid, phenylphosphonic acid and boric acid is 1 (2.1-2.3): (0.3-0.5): (0.4-0.6).
  3. 3. The environment-friendly residue-free aluminum processing oil composition according to claim 2, wherein the preparation method of the star-shaped composite ester comprises the following steps: S1, mixing pentaerythritol and oleic acid in an inert gas atmosphere, adding a catalyst and toluene, stirring, heating to 140-150 ℃, carrying out reflux reaction for 4-5h, and dehydrating to obtain a reactant A; s2, keeping stirring, cooling the reaction system to 80-90 ℃, adding phenylphosphonic acid, heating to 130-140 ℃, carrying out reflux reaction for 3-4h, and dehydrating to obtain a reactant B; and S3, keeping stirring, cooling the reaction system to 80-90 ℃, adding boric acid, heating to 110-120 ℃, carrying out reflux reaction for 4-5h to obtain a reactant C, and carrying out neutralization, dehydration and reduced pressure distillation after cooling to obtain the catalyst.
  4. 4. An environmental protection type residue-free aluminum processing oil composition according to claim 1, wherein the synthetic ester further comprises a linear synthetic ester selected from any one or a combination of two of methyl laurate and oleic acid monoglyceride.
  5. 5. An environmental protection type residue-free aluminum processing oil composition according to claim 4, wherein the mass ratio of the linear synthetic ester to the star-shaped complex ester is 1 (1-3).
  6. 6. An environmentally friendly residue free aluminum processing oil composition according to claim 1 wherein said antioxidants comprise amine and phenolic antioxidants.
  7. 7. The environmentally friendly residue-free aluminum processing oil composition according to claim 1, wherein the metal corrosion inhibitor is one or a combination of a plurality of benzotriazole and derivatives thereof.
  8. 8. The environmentally friendly residue free aluminum processing oil composition of claim 1 wherein the tackifier is one or a combination of more of polymethacrylate, ethylene propylene rubber, and low molecular weight polyisobutylene.
  9. 9. The method for preparing the environment-friendly residue-free aluminum processing oil composition as claimed in any one of claims 1 to 8, which is characterized by comprising the following steps: weighing raw materials according to a raw material formula, mixing base oil and tackifier, heating, stirring and raising the temperature to 115-125 ℃, vacuumizing and stirring at constant temperature to obtain a primary mixture, adding antioxidant, metal corrosion inhibitor and synthetic ester into the primary mixture, mixing, stirring and circularly filtering to obtain the anti-oxidant, metal corrosion inhibitor and synthetic ester.

Description

Environment-friendly residue-free aluminum product processing oil composition and preparation method thereof Technical Field The application relates to the technical field of aluminum product processing oil, in particular to an environment-friendly residue-free aluminum product processing oil composition and a preparation method thereof. Background Aluminum and aluminum alloy are widely applied in the fields of packaging, aerospace, electronics and the like by virtue of the characteristics of light weight, high heat conductivity coefficient, excellent ductility and the like, and particularly in the field of food packaging, aluminum packaging becomes a core substrate of packaging products such as pop cans, wrinkle-free aluminum boxes and the like due to the advantages of high barrier property, easiness in recycling and the like. The forming processing of the aluminum packaging material is dependent on a stamping process, in the stamping process, aluminum processing oil (also called stamping oil) is a key auxiliary material for guaranteeing production efficiency and product quality, on one hand, the aluminum packaging material can lubricate and reduce friction, and through forming an oil film on the contact surface of a die and an aluminum plate, the friction coefficient is reduced, the surface scratch or the die abrasion of the aluminum material is avoided, on the other hand, the aluminum packaging material can cool and dissipate heat in the continuous production process, and a large amount of heat generated by friction between the die and the aluminum material is absorbed, so that the die is prevented from being deformed due to overheating, and the service life of the aluminum packaging material is prolonged. When thicker wall aluminum materials are punched, the punching force is often more than 40 tons, and the processing oil is required to have more proper viscosity and excellent high-temperature stability to meet the process requirements so as to ensure that a continuous lubricating effect can be provided. In the prior art, the aluminum product is mainly processed by mineral oil type and synthetic oil type, the mineral oil type mainly uses refined paraffin-based or naphthenic mineral oil, the cost is low, the source is wide, the initial lubricating property is better, but the mineral oil cannot be completely volatilized and pyrolyzed in the subsequent heat treatment process of the aluminum product above 500 ℃, intractable and tarry carbonization residues are easy to form, appearance defects such as black spots, color change and the like are easy to occur on the surface of the aluminum product, complicated and high-cost cleaning procedures such as additional acid washing and alkali washing are required to be added, the synthetic oil type mainly adopts poly alpha-olefin (PAO) and common synthetic ester (such as dioctyl adipate) as base oil, the high-temperature stability of the oil is optimized, but the oxidation stability is insufficient, the oxidation deterioration is easy to occur after the cyclic heating, the viscosity stability of the oil product is unbalanced, residues are easy to occur in the heat treatment process above 500 ℃, and the service life of the processing oil is shortened. Disclosure of Invention In order to improve the high-temperature stability and oxidation resistance of the aluminum processing oil, the application provides an environment-friendly residue-free aluminum processing oil composition and a preparation method thereof. In a first aspect, the application provides an environment-friendly residue-free aluminum product processing oil composition, which adopts the following technical scheme: the environment-friendly residue-free aluminum product processing oil composition comprises, by weight, 60-100 parts of polyethylene glycol ether, 2-17 parts of synthetic ester, 0.5-2.5 parts of antioxidant, 0.1-0.5 part of metal corrosion inhibitor and 0.1-3 parts of tackifier, wherein the synthetic ester comprises star-shaped composite ester, and the raw materials of the star-shaped composite ester comprise pentaerythritol, oleic acid, phenylphosphonic acid and boric acid. By adopting the technical scheme, polyethylene glycol ether is used as base oil, has excellent viscosity-temperature performance and biodegradability, can provide a sufficient and stable lubricating film under the condition of aluminum heavy-load stamping, and can meet the increasingly strict requirements of industrial production on environmental protection. The inventor finds that the star-shaped composite ester is prepared by taking pentaerythritol as a core and reacting the pentaerythritol with organic phosphonic acid and boric acid after being partially esterified with long-chain fatty acid to form a mixed structure containing phosphate and borate, so that the lubricating property and oxidation resistance stability of the aluminum product processing oil can be remarkably enhanced, the stability of the viscosity of the