CN106566606A - High-performance punching oil used for thick plate - Google Patents

Abstract

The invention relates to a high-performance stamping oil used for thick plates, which belongs to the field of working fluids for metal processing, and in particular relates to working fluids for metal stamping. The composition formula of the invention according to mass percentage is: 60%-80% of refined mineral oil, 5-10% of sulfur-containing extreme pressure agent, 5-15% of polymer ester extreme-pressure agent, 0.5-5% of anti-wear agent and 5-10% of rust inhibitor, wherein the sulfur-containing extreme-pressure agent is selected from sulfurized fatty acid ester , a kind of or its mixture in the high alkali value sulfonate; The high molecular polymer ester extreme pressure agent is selected from polyheptadecyl imidazoline-two-isooctyl borate; The present invention uses the high molecular polymer ester extreme pressure The synergistic effect of additives and sulfur-containing extreme pressure additives endows the stamping oil with excellent lubricating properties and anti-rust properties, which meets the high-performance requirements of thick plate stamping, and solves the rust of stamping products by avoiding the use of chlorinated paraffin problems, and environmental issues.

Description

A high-performance stamping oil for thick plates

technical field

The invention relates to a high-performance stamping oil used for thick plates, which belongs to the field of working fluids for metal processing, in particular to working fluids for metal stamping processing.

Background technique

The development of stamping technology began with the industrial production of automobiles. At the beginning of the 20th century, the industrialized production of Ford Motor in the United States greatly promoted the research and development of stamping technology. The 1960s was an important period for the development of stamping technology, and various new forming technologies appeared one after another. In 1923, the fine blanking technology was first proposed by the German F. Schiess. In 1924, F. Schiess established the world's first fine blanking factory in Lichtensteig, Switzerland.

The fine blanking process is a part stamping technology that can be made in one process and immediately used for assembly, eliminating the need for subsequent processing steps such as milling, grinding, broaching or drilling, etc., not only can manufacture flat parts, but also It can realize: bending, bending, extrusion, half-punching and countersinking and other processes. The early fine blanking technology was mainly used in the processing of stamping parts for office equipment, watches and clocks. At present, 60% of the fine blanking parts come from the auto parts industry. The early fine blanking technology was mainly used for materials with a thickness of 1 to 3 mm, while the current fine blanking technology can already be applied to a material thickness up to 19 mm. Most of the above use chlorinated paraffin as the main extreme pressure agent of stamping oil.

In recent years, with the rapid development of the metal processing manufacturing industry, the thickness of stamping materials is getting thicker and thicker. Generally, materials with a thickness of more than 6mm are called thick plates, and the requirements for the performance of the metal stamping oil that are matched with it are also increasing. High, the thicker the material, the greater the deformation during the stamping process, and the higher the extreme pressure lubrication performance of the stamping oil. If the lubricity is not enough, it will cause die chipping, burrs, tears, Phenomena such as poor finish. For a long time, in the field of thick plate stamping, because chlorinated paraffins have the advantages of easy availability and low cost of raw materials, traditional chlorinated paraffins have been used as extreme pressure agents at home and abroad to prepare metal stamping oils in combination with other additives. It is generally believed that the chlorine-containing extreme pressure agent shows anti-wear and extreme pressure effects through chemical adsorption or reaction with the metal surface, and the decomposed chlorine or HCL reacts with the metal surface to form a FeCl ₂ or FeCl ₃ protective film . However, during the placement process, the product continues to be in contact with the air, and FeCl ₃ deliquesces, which will generate macular spots and cause stamping parts to rust.

In addition to the easy degradation of chlorinated paraffin to produce hydrogen chloride, when the incineration method is used to treat waste oil, carcinogenic dioxins are often produced because the incineration temperature is not high enough. This is the most harmful to human health discovered so far. Chemical substances are extremely harmful to the environment and aquatic organisms. Therefore, chlorinated paraffins are potential pollution sources of carcinogens and aquatic toxicity in the environment, especially short-chain chlorinated paraffins have the most serious pollution to fresh water and seawater. Therefore, the market's demand for chlorine-free stamping oil has become more urgent, and the development and use of chlorine-free anti-rust thick plate stamping oil has become a future development trend.

Chinese patent CN201210508661.6 discloses a metal stamping oil and its preparation method, which consists of the following components: 80% to 85% mineral base oil, 4% to 6% alkylphenol polyoxyethylene ether phosphate, 6%~7% lauryl alcohol polyoxyethylene ether, 2%~3% sorbitan fatty acid ester and 3%~4% fatty amine have good lubricating properties, but the oil can be emulsified when it meets water, which will affect the product antirust effect; CN201310561374 discloses a stamping forming lubricant for automobile plate components, which consists of 6% to 8% antiwear agent, 6% to 8% oily agent, 0.5% to 1.0% antirust agent, and 0.001% to 0.005% antifoam agent, 0.5% to 1.0% antioxidant, 0.1% to 0.5% metal deactivator, and the balance is composed of base oil. Trimethyl phosphate and sulfurized isobutylene are used to compound to meet the lubrication requirements. This invention can only be used for thin plates. Stamping cannot meet the lubrication requirements of thick plate stamping; CN201510117670 discloses a high-performance environment-friendly medium and long-term anti-rust stamping oil, which consists of 5% to 10% synthetic lubricant, 10% to 25% antirust agent, 1% to 10% %Extreme pressure antiwear agent, 0.2%~1% metal deactivator, 1%~3% surfactant, 10%~30% refined mineral oil, 30%~60% refined solvent oil, using modified vegetable oil Or polyol esters to achieve the lubricating effect, while the modified vegetable oils and polyol esters are unstable, and a reversible esterification reaction will occur at a certain temperature, and the acidic substances produced will corrode the surface of the material. None of the above patents involves technical reports on improving the lubricating performance of oil products by synergistically acting together with polymeric ester extreme pressure agents, high alkali value sulfonates and sulfur-based extreme pressure additives.

In addition, Japanese patent JP H10279979A discloses a rust-proof stamping oil without chlorine additives. This patent uses lubricating oil containing potassium borate lubricant as base oil, sulfurized fatty oil as extreme pressure agent, and metal sulfonate However, the kinematic viscosity of the oil introduced in this patent is in the range of 2 to 40 mm ² /S, which cannot meet the lubrication requirements for punching medium and thick plates.

Invention content:

The purpose of the present invention is to provide a high-performance stamping oil for thick plates, through the synergistic use of high-molecular polymer ester extreme pressure agents, high alkali value sulfonates, and sulfur-based extreme pressure agents, to enhance the lubricity of thick plate stamping oils and rust resistance, replace the traditional chlorine-containing extreme pressure agent chlorinated paraffin commonly used in the existing thick plate stamping, solve the problem of easy rust of the existing thick plate stamping parts, not only comprehensively improve the precision and quality of thick plate stamping products , and avoid adverse effects on the ecological environment and human body due to the use of chlorinated paraffin extreme pressure agents.

The invention is a high-performance stamping oil for thick plates, which is composed of refined mineral oil, sulfur-containing extreme pressure agent, high molecular polymer ester extreme pressure agent, antiwear agent and antirust agent, and its component formula is based on mass percentage as follows:

Refined mineral oil 60%～80%

Selected from: Group II, II ⁺ , III mineral oils;

Sulfur-containing extreme pressure agent 5% to 10%

Be selected from: one or its mixture in sulfurized fatty acid ester, perbasic sulfonate;

High molecular polymer ester extreme pressure agent 5%～15%

Selected from: polyheptadecyl imidazoline-di-isooctyl borate;

Antiwear agent 0.5%～5%

selected from: zinc dialkyl dithiophosphates or phosphates;

Rust inhibitor 5%～15%

One selected from the group consisting of: dodecenylsuccinic acid, basic barium dinonylnaphthalene sulfonate, lanolin or magnesium soap of lanolin;

The sum of the amounts of the above-mentioned components is 100%.

In the high-performance stamping oil for thick plates, the ratio of the high-molecular polymer ester extreme-pressure agent to the sulfur-containing extreme-pressure agent is (1-1.5):1.

The preparation method of a kind of high-performance stamping oil that is used for thick plate of the present invention is as follows:

According to the component formula of the present invention, first add mineral oil into the reaction kettle, heat up to 50-60°C, then add sulfur-containing extreme pressure agent, high molecular polymer ester extreme pressure agent, anti-wear agent and anti-rust agent in sequence, and stir evenly To transparency, press oil of the present invention is obtained.

The main technical indicators of the stamping oil of the present invention are as follows:

The present invention selects II, II ⁺ and III mineral oils as the base oil carrier of the composition, which has low odor, low pour point, high viscosity index, high anti-oxidation stability and good compatibility with additives.

The sulfurized fatty acid ester extreme pressure agent used in the present invention does not contain active sulfur, because of its high polarity, it has a high affinity to the metal surface, and works synergistically with the high molecular polymer ester extreme pressure agent to play a good role. Extreme pressure lubrication effect, and non-corrosive, no irritating smell.

The perbasic value sulfonate used in the present invention is perbasic value petroleum calcium sulfonate or perbasic value petroleum sodium sulfonate, high basic value petroleum sulfonate can show good loadability, and is an inert extreme pressure additive, so in Under the friction conditions of metal processing, sulfonate can promote the reaction of its peptized inorganic carbonate and iron oxide on the metal surface to produce a variety of metal oxides and ferrite, which prevent the metal matrix from directly contact, thereby playing the role of extreme pressure lubrication, and the high alkali value sulfonate is also a kind of anti-rust and corrosion inhibitor, which can play a role in anti-rust.

The polymer polymeric ester extreme pressure agent that the present invention selects is polyheptadecyl imidazoline-di-isooctyl borate, because it has saturated, branched polymer structure, has very high polarity, so It has a high affinity to the metal surface, similar to chlorinated paraffin, and can form a composite lubricating film composed of nitrogen-containing organic matter, boron oxide and iron oxide on the metal surface, and can achieve continuous thermal stability on the metal surface Boundary lubricating film, the formed lubricating film is of high strength and can withstand very high load capacity. It can prevent the direct contact of the metal surface to the greatest extent, so as to minimize the adhesive wear. In addition to the processing performance of low-molecular-weight synthetic esters, due to its high molecular weight and relatively high viscosity index, high-molecular-weight polyesters can still maintain relatively high motion before reaching the degradation temperature of 400-500°C Viscosity, so it can provide a certain performance of fluid lubrication performance, this unique performance allows polymeric esters to reach the same temperature as chlorinated paraffin on the metal surface.

The high-molecular polymer ester extreme pressure agent of the present invention forms a thermally stable boundary lubricant film at a temperature of 150°C to 500°C. When the temperature rises, it can still provide a certain performance of fluid lubrication performance. At a temperature of ~1000°C, metal oxides can be formed to act as a chemical protective film on the metal surface, while sulfur-based extreme pressure additives can form a chemical protective film at a temperature of 600°C to 1200°C to play the role of extreme pressure lubrication . The temperature range of polymer polyester forming a protective film in stamping processing is similar to that of chlorinated paraffin, so it can replace the role of chlorinated paraffin in stamping processing and avoid the rust caused by chlorinated paraffin. The high alkali value sulfonate can also enhance the anti-rust performance of the oil, so the present invention innovatively combines the high-molecular polymer ester extreme pressure agent with the optimal ratio of sulfur-containing extreme pressure additives, and the formed product has a high-strength lubricating film, It enables the metal surface to withstand very high load capacity, meets the lubrication requirements in various temperature ranges in the stamping process, and has excellent rust resistance. Meet the lubrication requirements required for stamping thick plates, and solve the problem of easy rusting of stamping parts.

The mass ratio of the high-molecular polymer ester extreme-pressure agent to the sulfur-containing extreme-pressure agent selected in the present invention is (1-1.5): 1, and the synergistic effect of the high-molecular polymer ester extreme-pressure agent and the sulfur-containing extreme-pressure additive enhances the present invention. Invented the lubricity and antirust performance of stamping oil, thus meeting the requirements of thick plate stamping for lubrication and antirust performance, and avoiding the addition of too much sulfur-containing extreme pressure additives in order to obtain higher lubricity, which makes the oil smell If it is too large, it will cause environmental pollution and affect the health of operators.

detailed description:

Example 1

According to above-mentioned composition formula, prepare a kind of high-performance stamping oil 100Kg that is used for thick plate of the present invention,

in:

First add 78Kg II mineral oil 500N into the reaction kettle, heat up to 50-60°C, according to the above formula, add 6Kg sulfurized fatty acid ester, 6Kg polyheptadecyl imidazoline-di-isooctyl borate, 2Kg Dialkyl dithiophosphate zinc, 0.5Kg phosphoric acid ester, 5Kg lanolin magnesium soap, 2.5Kg basic barium dinonylnaphthalene sulfonate, stir until transparent, and obtain 100Kg thick plate stamping oil.

Application of this product: Using the stamping oil of the above invention, on a 630-ton FEINTOOL fine blanking machine, the front end cover plate of 6.4mm thick C45E steel is stamped and formed. The surface accuracy of the workpiece meets the requirements, and there is no tear or burn on the processed surface. The workpiece is placed for one month. There was no case of rust.

Example 2

According to above-mentioned composition formula, prepare a kind of high-performance stamping oil 100Kg that is used for thick plate of the present invention

in:

First add 74Kg II ⁺ mineral oil 500N into the reaction kettle, heat up to 50-60°C, according to the above formula, add 8Kg high alkali value calcium sulfonate petroleum, 10Kg polyheptadecylimidazoline-di-isooctylboron Ester, 2Kg zinc dialkyl dithiophosphate, 1Kg phosphoric acid ester, 5Kg dodecenyl succinic acid, stir evenly until transparent, obtain 100Kg thick plate stamping oil of the present invention.

Application of this product: Using the stamping oil of the above invention, 30CrMo steel parts with a thickness of 8mm are stamped on a 700-ton FEINTOOL fine blanking machine. The surface accuracy of the workpiece meets the requirements, and there is no tear or burn on the processed surface. rust phenomenon.

Example 3:

According to above-mentioned composition formula, prepare a kind of high-performance stamping oil 100Kg that is used for thick plate of the present invention

in:

First add 66Kg II mineral oil 500N into the reaction kettle, heat up to 50-60°C, according to the above formula, add 5Kg sulfurized fatty acid ester, 5Kg high alkali value sodium petroleum sulfonate, 15Kg polyheptadecyl imidazoline-di - Isooctyl borate, 2Kg zinc dialkyl dithiophosphate, 0.5Kg phosphoric acid ester, 5Kg dodecenyl succinic acid, 1.5Kg lanolin magnesium soap, stir until transparent to obtain 100Kg thick plate stamping oil .

Application of this product: Using the stamping oil of the above invention, 16MnCr5 steel parts with a thickness of 10mm are stamped on a 700-ton FEINTOOL fine blanking machine. The surface accuracy of the workpiece meets the requirements, and there is no tearing or burn on the processed surface. rust phenomenon.

Claims (3)

1. a kind of high-performance punching oil for slab, it is characterised in that by refined mineral oil, sulfur-containing extreme-pressure additive, polyphosphazene polymer Ester extreme pressure agent, antiwear additive and antirust agent composition is closed, its component formula by mass percentage is as follows：

Refined mineral oil 60%～80%

It is selected from：II、II⁺, Group III mineral oil；

Sulfur-containing extreme-pressure additive 5%～10%

It is selected from:One kind or its mixture in sulfide aliphatic acid ester, over base sulfosalt；

High molecular polymerization ester extreme pressure agent 5%～15%

It is selected from：Poly- heptadecyl imidazole quinoline-two-iso-octyl borate；

Antiwear additive 0.5%～5%

It is selected from：Zinc dialkyl dithiophosphate or phosphate ester；

Antirust agent 5%～15%

It is selected from：One kind of the magnesium soap of dodecenylsuccinic acid, alkaline dinonyl naphthalene sulfonate barium, lanoline or lanoline；

Above-mentioned each component consumption sum is 100%.

2. a kind of high-performance punching oil for slab according to claim 1, it is characterised in that high molecular polymerization ester pole Pressure agent is (1～1.5) with the ratio of sulfur-containing extreme-pressure additive:1.

3. the compound method of a kind of high-performance punching oil for slab according to claim 1, it is characterised in that by group Part formula, adds mineral oil first in a kettle., is warming up to 50～60 DEG C, then sequentially add sulfur-containing extreme-pressure additive, macromolecule Polyester extreme pressure agent, antiwear additive and antirust agent, be evenly stirred until it is transparent, that is, obtain with following performance the high property for slab Can punching oil：