CN106800963A - A kind of water soluble oil metalworking fluid raw material and metalworking fluid - Google Patents

Abstract

The invention provides a kind of water soluble oil metalworking fluid raw material, including base oil, surfactant, couplant, antirust complexing agent, defoamer and water, it is characterized in that, the surfactant contains first surface activating agent and second surface activating agent, the first surface activating agent is Brij, and the second surface activating agent includes one or two and the organic carboxyl acid in butyl monoethanolamine, butyl diethanolamine.The present invention also provides one kind metalworking fluid as obtained in cutting fluid raw material of the present invention.The cutting fluid that the present invention is provided can effectively improve the thermal conductivity of product, protect cutter and extend its service life, overcome the problem of the long-term storage of water soluble oil and high-temperature stability.

Description

A kind of water-soluble oil metal cutting fluid raw material and metal cutting fluid

technical field

The invention relates to a water-soluble oil metal cutting fluid raw material and a water-soluble oil metal cutting fluid prepared from the raw material of the invention.

Background technique

The metal cutting process can usually be divided into two stages, namely chip generation and chip removal in time. In these two stages, there is friction between the tool and the workpiece, and between the tool and the chip. The energy consumed by this friction is converted into heat, which will affect the processing efficiency and workpiece quality. Due to severe friction, a large amount of heat is generated, which overheats the tool and the workpiece, reduces the life of the tool, and affects the accuracy of the product. In order to cool and lubricate the tool and workpiece, cutting lubricants must be used to take away the heat generated by cutting in time, reduce the temperature of the tool and workpiece and act as a lubricant; improve the surface finish of the workpiece and prolong the service life of the tool.

Metal cutting fluids are generally divided into oil-based products and water-based products.

As mentioned earlier, oil-based products have poor thermal conductivity, and because of their volatile nature, oil mist diffuses in the workplace, endangering the health of operators. Water-based products completely overcome these two shortcomings.

Water-based products usually use emulsifiers, co-emulsifiers, emulsion stabilizers, etc. to transform base oil, additives and water into a uniform system. And this system, when further diluted with a large amount of water, will transform into another homogeneous system. The former system is called water-soluble oil concentrate, and the latter system is called water-soluble oil working fluid.

The prior art discloses a non-ferrous metal processing cutting fluid, which is made of the following raw materials in parts by weight: 4-6 parts of sulfurized fatty acid sodium, 8-14 parts of potassium percarbonate soap, 3-4 parts of sodium benzoate, diiso 2.5-3.6 parts of sodium propyl naphthalene sulfonate, 4-7 parts of additives, 3-5 parts of boric acid, 5-9 parts of methyl paraben, 4-7 parts of sodium lauryl sulfate, 8-9 parts of surfactant , 2-5 parts of extreme pressure additive, 4-8 parts of nano titanium dioxide, 3-6 parts of methacrylic acid, 1.2-3.2 parts of silicone defoamer, 5-8 parts of oleic acid. The metal cutting fluid prepared in the prior art has anti-oxidation and anti-corrosion properties, and has improved high-temperature resistance, effectively protects cutting tools and prolongs their service life.

The prior art discloses a new type of environmentally friendly metal cutting fluid, which is made of the following raw materials in parts by weight: 3-6 parts of isopropanol, 15-26 parts of methyl epichlorohydrin, and 24-34 parts of titanium-niobium alloy , 3-4 parts of water glass, 7-10 parts of sulfonate rust inhibitor, 4-7 parts of polyol ester, 6-10 parts of anionic surfactant, 11-16 parts of potassium percarbonate soap, 4-8 parts of polyisobutylene 1-3 parts of polyurethane, 5-8 parts of 2-aminotriethanol, 7-12 parts of castor oil, and 4-6 parts of alcohol amine. The metal cutting fluid prepared in the prior art has improved processing precision, good cleaning performance, reduced pollution to the working environment, and good environmental protection effect.

Although metal cutting fluid overcomes the defects of thermal conductivity and environmental protection, it still has its own shortcomings, such as: it cannot maintain a stable state for a long time, especially in a high temperature environment, it is easy to lose stability and stratify.

Contents of the invention

The purpose of the present invention is to solve the problems of long-term storage and high-temperature stability of water-soluble oil metal cutting fluid in the prior art, and provide a product that can effectively improve the high-temperature resistance of the product, protect the cutting tool and prolong its service life, and overcome long-term storage and high-temperature stability. Water-soluble oil metal cutting fluid raw materials and metal cutting fluid.

In view of the above technical problems, the present invention proposes a water-soluble oil metal cutting fluid raw material, including base oil, surfactant, coupling agent, anti-rust compound agent, defoamer and water, the surfactant contains the first surfactant agent and a second surfactant, the first surfactant is oleyl alcohol polyoxyethylene ether, and the second surfactant includes one or both of butyl monoethanolamine, butyldiethanolamine and organic carboxyl acid, the structural formula of oleyl alcohol polyoxyethylene ether is:

Wherein, R is C ₁₈ H ₃₅ , the polyoxyethylene segment polymerization degree n is 3-8, and its molecular formula is written as C ₁₈ H ₃₅ O(C ₂ H ₄ O) _n H.

The inventors of the present invention have unexpectedly discovered in experiments that the amine soap formed by the reaction of an alkylethanolamine with a carbon chain length of 4 and an organic carboxylic acid in the system is compatible with an amine soap containing a polyoxyethylene chain segment with a degree of polymerization of 3-8 Oleyl alcohol polyoxyethylene ether together as the main emulsifier can make the base oil obtain excellent emulsification balance in water.

This application selects oleyl alcohol polyoxyethylene ether C ₁₈ H ₃₅ O(C ₂ H ₄ O) _n H with a degree of polymerization of 3-8, which can significantly improve the long-term storage and high temperature stability of the metal cutting fluid of this application, presumably because The HLB value of the surfactant specifically selected in this application is more suitable for the cutting fluid of the present invention. The number of oxygen on the polyoxyethylene chain segment is more, the number of hydrogen bonds with water is more, and the oil solubility is also more suitable. And when the polymerization degree of the polyoxyethylene segment of the oleyl alcohol polyoxyethylene ether is 3-8, there is a strong synergistic effect with butyl ethanolamine, supplemented by other additives such as fatty acid amide, synthetic fat and coupling agent, etc., It can realize the long-term storage of water-soluble oil metal cutting fluid, and can maintain long-term stability in the environment of 70 ℃, which is convenient for long-distance transportation in summer.

Through the above technical scheme, applied to water-soluble oil metal cutting fluid, it can effectively improve the thermal conductivity of the product, protect the tool and prolong its service life, and overcome the problems of long-term storage and high-temperature stability of water-soluble oil.

Other features and advantages of the present invention will be described in detail in the detailed description that follows.

detailed description

Specific embodiments of the present invention will be described in detail below. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, not to limit the present invention.

The invention provides a water-soluble oil metal cutting fluid raw material, including base oil, surfactant, coupling agent, anti-rust compound agent, defoamer and water, the surfactant contains a first surfactant and a second surfactant agent, the first surfactant is oleyl alcohol polyoxyethylene ether, and the second surfactant includes one or both of butyl monoethanolamine and butyl diethanolamine and organic carboxylic acid, and the oleyl alcohol The structural formula of polyoxyethylene ether is:

In the present invention, the polyoxyethylene segment polymerization degree n is 3-8, preferably n is 4-6, more preferably 5. In the preferred range, the HLB value of the combination of various surfactants in the system is easy to compound with alkanolamine to achieve the optimal HLB value required by the base oil to be emulsified, so that the system can withstand high temperature without destroyed.

In the present invention, based on 100 parts by weight of cutting fluid raw materials, preferably, the amount of the first surfactant is 3-5 parts, and the amount of the second surfactant is 1.5-8 parts.

In the present invention, the molar ratio of butyl monoethanolamine to butyldiethanolamine is preferably 1:3-3:1, more preferably 1:2-1:2.3. The butyl monoethanolamine uses a butyl group to replace a hydrogen bond in the monoethanolamine amine group, and butyldiethanolamine uses a butyl group to replace a hydrogen bond in the diethanolamine amine group. The preferred result can make the product withstand higher temperatures storage.

In the present invention, the organic carboxylic acid may be selected from one or more of oleic acid, tall oleic acid, ethylenediaminetetraacetic acid and ether carboxylic acid, and the preferred organic carboxylic acid is tall oleic acid. When ethylenediaminetetraacetic acid or ether carboxylic acid is selected as the organic carboxylic acid, these substances can also be used as anti-hard water agents, which have the ability to bind calcium and magnesium ions in water, prevent long-chain fatty substances from forming metal soaps and precipitate precipitation, and solve the hard water problem. .

The second surfactant may also contain one or both of triethanolamine and monoethanolamine. Based on 100 parts by weight of cutting fluid raw materials, 1-5 parts by weight of butyl monoethanolamine, 0.5-3 parts by weight of butyldiethanolamine, 0.5-7 parts by weight of triethanolamine, and 0.5 parts by weight of monoethanolamine -3 copies. Through compounding of butyl monoethanolamine, butyl diethanolamine, triethanolamine and monoethanolamine, and reacting with organic carboxylic acid, the performance of the second surfactant obtained is better.

Preferably, the surfactant can also contain a third surfactant, the third surfactant is fatty acid amide, based on 100 parts by weight of cutting fluid raw materials, the amount of fatty acid amide is 3-6 parts.

Through the compounding of the surfactant of the present invention, the HLB value of the emulsifier system formed by the oleyl alcohol polyoxyethylene ether, the amine soap generated by the organic acid and the amine and the preferably added fatty acid amide can be 10-13, which is more suitable The cutting fluid system of the present application is more suitable to cooperate with other additives in the present invention, such as coupling agent and synthetic grease.

In the present invention, the coupling agent is selected from one or more of hexanediol, isohexanediol and diethylene glycol monobutyl ether, more preferably hexanediol. The participation of couplant can reduce the particle size of emulsified particles, so as to achieve stability.

In the present invention, the antirust composite agent is selected from carboxylate type antirust agent, boric acid amine type antirust agent or phosphate ester type antirust agent (the phosphate type antirust agent is made of phosphorus pentoxide, thiadiazole , diethanolamine as raw materials, introducing hydrophilic groups into thiadiazole molecules, and preparing a phosphoric acid ester rust inhibitor containing nitrogen, sulfur and phosphorus through a special catalytic esterification method.) One or more of One, the selected is boric acid amine rust inhibitor. Such as Smart Base 9290, Smart Base 9390, Smart Base 9490 or Smart Base 9690 of Smart Company. Further preferred is Smart Base 9490, the ammonium borate type can protect machine parts from corrosion.

In the present invention, the defoamer is selected from one or more of polyether type defoamers or silicone defoamers, and the preferred defoamer is silicone defoamer. Specifically, it can be selected from HP710, HP732, HP777 or HV810, HV825G of Mengqingxin Company, more preferably HP777. It has a fast defoaming speed and good foam suppression effect at room temperature.

In the present invention, the base oil is selected from one or more of paraffinic or naphthenic base oils, preferably naphthenic base oils, specifically can be selected from one or more of 100N, 150N or No. 32 industrial oils Several, more preferably No. 32 industrial oil. It has good lubricating properties and anti-rust properties, and has good fluidity at low temperatures above -5°C.

The cutting fluid of the present invention also contains antihardening agent and/or synthetic fat. The synthetic fat is selected from one or more of phosphoric acid ester, polyol ester and fatty acid ester, and the selected synthetic fat is fatty acid ester. Such as Clariant's Hostagliss L4, Hostagliss TPO, Hostagliss PA 135, etc. It is further preferably Hostagliss L4, which can maintain the alkali buffering capacity of the system in combination with butanolamine.

Anti-hard water agent can select organic carboxylic acid for use, such as ethylenediaminetetraacetic acid (EDTA), ether carboxylic acid, and it also can be used as the organic carboxylic acid in the main component of the present invention simultaneously, or mixes with other organic carboxylic acid, can mix with Butyl monoethanolamine, butyldiethanolamine, triethanolamine, monoethanolamine and other alcohol amines react. Organic carboxylates can also be selected, such as one or more of disodium ethylenediaminetetraacetic acid and sodium ether carboxylate. Preferably, the anti-hard water agent is selected from ether carboxylic acid. Specifically, such as Enulsogen COL 020, Enulsogen COL 050, Enulsogen COL 070 or Enulsogen COL 100 of Clariant. It is further preferably Enulsogen COL 070, which can make the system have excellent anti-electrolyte stability in acid and alkali environments, and avoid oil separation in the system.

Specifically, preferably, the cutting fluid raw material described in the present invention includes oleyl alcohol polyoxyethylene ether, fatty acid amide, organic carboxylic acid, synthetic ester, butyl monoethanolamine, butyl diethanolamine, monoethanolamine, triethanolamine, anti-hard water agent, base oil, composite antirust agent, water, defoaming agent, coupling agent, based on the total weight of the cutting fluid, the content of each component of the cutting fluid raw materials is: oleyl alcohol polyoxyethylene ether 3%~ 5%, fatty acid amide 3%~6%, organic carboxylic acid 2%~7%, synthetic ester 6%~12%, butyl monoethanolamine 1%~5%, butyldiethanolamine 0.5%~3%, monoethanolamine and triethanolamine total 1%~10%, anti-hard water agent 0.5%~2%, base oil 20%~40%, compound rust inhibitor 20%~30%, water 1%~27%, defoamer 0.05%~ 0.25%, couplant 0.5%~2.5%. The present invention also provides a water-soluble oil metal cutting fluid, which is prepared by mixing the metal cutting fluid raw materials mentioned above.

The present invention will be described in detail below by way of examples.

Example 1

The components and weight percentages of the metal cutting fluid in this example are as follows: 3.5% oleyl alcohol polyoxyethylene ether with n being 3, 5% fatty acid amide, 3.5% tall oleic acid, and 11.5% synthetic ester (Hostagliss L4 from Clariant Company) %, butyl monoethanolamine 3%, monoethanolamine 1%, triethanolamine 3.3%, anti-hard water agent (Enulsogen COL 070 of Clariant Company) 0.5%, base oil (No. 32 industrial oil) 27%, composite rust inhibitor ( Smart Base 9490 from Smart Company) 28.5%, water 10.6%, defoamer (HP777 from Mengqingxin Company) 0.1%, hexanediol 2.5%, as shown in Table 1.

The production process is as follows: add base oil, oleyl alcohol polyoxyethylene ether with n=3, fatty acid amide, synthetic ester, tall oleic acid, butyl monoethanolamine, monoethanolamine and triethanolamine into the blending kettle, and stir for 10 minutes , then add composite anti-rust agent and stir for 10 minutes, continue to add water and anti-hard water agent, stir for 10 minutes, then add hexanediol and stir for 10 minutes, finally add defoamer and stir for 40 minutes.

Example 2

The components and weight percentages of the metal cutting fluid in this example are as follows: 4% oleyl alcohol polyoxyethylene ether with n being 8, 6% fatty acid amide, 5% tall oleic acid, and 6.5% synthetic ester (Hostagliss L4 from Clariant Company) %, butyldiethanolamine 3%, monoethanolamine 1%, triethanolamine 2.1%, antihardening agent (Enulsogen COL 070 of Clariant Company) 0.5%, base oil (No. 32 industrial oil) 21%, composite rust inhibitor ( Smart Base 9490 from Smart Company) 26.5%, water 19.8%, defoamer (HP777 from Mengqingxin Company) 0.1%, hexanediol 2.5%, as shown in Table 1.

The production process is as follows: add base oil, oleyl alcohol polyoxyethylene ether with n=8, fatty acid amide, synthetic ester, tall oleic acid, butyldiethanolamine, monoethanolamine and triethanolamine into the blending kettle, and stir for 10 minutes , then add composite anti-rust agent and stir for 10 minutes, continue to add water and anti-hard water agent, stir for 10 minutes, then add hexanediol and stir for 10 minutes, finally add defoamer and stir for 40 minutes.

Example 3

The components and weight percentages of the metal cutting fluid in this example are as follows: 3.1% oleyl alcohol polyoxyethylene ether with n being 5, 3.3% fatty acid amide, 3.5% tall oleic acid, synthetic ester (Hostagliss L4 from Clariant Company) 8 %, butyl monoethanolamine 1%, butyl diethanolamine 3%, monoethanolamine 1%, triethanolamine 6%, anti-hardening agent (Enulsogen COL 070 of Clariant Company) 0.5%, base oil (No. 32 industrial oil) 34.2 %, compound antirust agent (Smart Base 9490 of Simin Company) 26.5%, water 8.2%, defoamer (HP777 of Mengqingxin Company) 0.1%, hexanediol 1.6%, as shown in Table 1, (D The molar ratio of monoethanolamine to butyldiethanolamine is 1:3).

The production process is as follows: base oil, oleyl alcohol polyoxyethylene ether with n being 5, fatty acid amide, synthetic ester, tall oleic acid, butyl monoethanolamine, butyldiethanolamine, monoethanolamine and triethanolamine are added to the blending tank In the process, stir for 10 minutes, then add compound anti-rust agent and stir for 10 minutes, continue to add water and anti-hard water agent, stir for 10 minutes, then add hexanediol and stir for 10 minutes, finally add defoamer and stir for 40 minutes.

Example 4

The components and weight percentages of the metal cutting fluid in this example are as follows: 3.5% oleyl alcohol polyoxyethylene ether with n being 5, 4.5% fatty acid amide, 3.5% tall oleic acid, synthetic ester (Hostagliss L4 from Clariant Company) 8 %, butyl monoethanolamine 2.4%, butyldiethanolamine 0.8%, monoethanolamine 1%, triethanolamine 6%, anti-hard water agent (EnulsogenCOL 070 of Clariant Company) 0.5%, base oil (No. 32 industrial oil) 32.4% , composite antirust agent (Smart Base 9490 of Simin Company) 26.5%, water 9.2%, defoamer (HP777 of Mengqingxin Company) 0.1%, hexanediol 1.6%, as shown in Table 1, (butyl The molar ratio of monoethanolamine to butyldiethanolamine is 3:1).

The production process is as follows: base oil, oleyl alcohol polyoxyethylene ether with n being 5, fatty acid amide, synthetic ester, tall oleic acid, butyl monoethanolamine, butyldiethanolamine, monoethanolamine and triethanolamine are added to the blending tank In the process, stir for 10 minutes, then add compound anti-rust agent and stir for 10 minutes, continue to add water and anti-hard water agent, stir for 10 minutes, then add hexanediol and stir for 10 minutes, finally add defoamer and stir for 40 minutes.

Example 5

The components and weight percentages of the metal cutting fluid in this example are as follows: 4.8% oleyl alcohol polyoxyethylene ether with n being 5, 3.2% fatty acid amide, 3.5% tall oleic acid, synthetic ester (Hostagliss L4 from Clariant Company) 8 %, butyl monoethanolamine 1%, butyl diethanolamine 2.2%, monoethanolamine 1%, triethanolamine 6%, anti-hard water agent (Enulsogen COL070 of Clariant Company) 0.5%, base oil 32.4%, composite rust inhibitor ( Smart Base 9490 of Smart Company) 26.5%, water 9.2%, defoamer (HP777 of Mengqingxin Company) 0.1%, hexanediol 1.6%, as shown in Table 1, (butyl monoethanolamine and butyl di The molar ratio of ethanolamine is 1:2.2).

The production process is as follows: base oil, oleyl alcohol polyoxyethylene ether with n being 5, fatty acid amide, synthetic ester, tall oleic acid, butyl monoethanolamine, butyldiethanolamine, monoethanolamine and triethanolamine are added to the blending tank In the process, stir for 10 minutes, then add compound anti-rust agent and stir for 10 minutes, continue to add water and anti-hard water agent, stir for 10 minutes, then add hexanediol and stir for 10 minutes, finally add defoamer and stir for 40 minutes.

Example 6

The components and weight percentages of the metal cutting fluid in this example are as follows: 4.8% oleyl alcohol polyoxyethylene ether with n being 5, 4.5% fatty acid amide, 3.5% tall oleic acid, synthetic ester (Hostagliss L4 from Clariant Company) 8 %, butyl monoethanolamine 1%, butyldiethanolamine 2.2%, anti-hard water agent (Enulsogen COL 070 of Clariant Company) 0.5%, base oil 32.4%, compound rust inhibitor (Smart Base 9490 of Simin Company) 26.5% %, water 14.9%, defoamer (HP777 of Mengqingxin Company) 0.1%, hexanediol 1.6%, as shown in Table 1, (the molar ratio of butyl monoethanolamine to butyl diethanolamine is 1:2.2) .

The production process is as follows: base oil, oleyl alcohol polyoxyethylene ether with n being 5, fatty acid amide, synthetic ester, tall oleic acid, butyl monoethanolamine, butyldiethanolamine, monoethanolamine and triethanolamine are added to the blending tank In the process, stir for 10 minutes, then add compound anti-rust agent and stir for 10 minutes, continue to add water and anti-hard water agent, stir for 10 minutes, then add hexanediol and stir for 10 minutes, finally add defoamer and stir for 40 minutes.

Example 7

The components and weight percentages of the metal cutting fluid in this example are as follows: 4.8% oleyl alcohol polyoxyethylene ether with n being 5, 3.5% tall oleic acid, 8% synthetic ester (Hostagliss L4 of Clariant Company), butyl- 1% ethanolamine, 2.2% butyldiethanolamine, 1% monoethanolamine, 5% triethanolamine, 0.5% anti-hard water agent (Enulsogen COL 070 from Clariant), 32.4% base oil, compound rust inhibitor (Simin company’s Smart Base 9490) 26.5%, water 12.4%, defoamer (Mengqingxin HP777) 0.1%, hexanediol 1.6%, as shown in Table 1, (the molar ratio of butyl monoethanolamine to butyldiethanolamine is 1:2.2).

The production process is as follows: base oil, oleyl alcohol polyoxyethylene ether with n being 5, fatty acid amide, synthetic ester, tall oleic acid, butyl monoethanolamine, butyldiethanolamine, monoethanolamine and triethanolamine are added to the blending tank In the process, stir for 10 minutes, then add compound anti-rust agent and stir for 10 minutes, continue to add water and anti-hard water agent, stir for 10 minutes, then add hexanediol and stir for 10 minutes, finally add defoamer and stir for 40 minutes.

Comparative example 1

The components and weight percentages of the metal cutting fluid in this comparative example are as follows: 3% oleyl alcohol polyoxyethylene ether with n being 3, 4% fatty acid amide, 3.5% tall oleic acid, synthetic ester (Hostagliss L4 of Clariant Company) 8 %, monoethanolamine 2.6%, triethanolamine 6%, anti-hard water agent (Enulsogen COL 070 of Clariant Company) 0.5%, base oil (No. 32 industrial oil) 36.5%, compound rust inhibitor (Smart Base 9490 of Simin Company) ) 26%, water 9.8%, defoamer (HP777 of Mengqingxin Company) 0.1%, hexanediol 1.6%, as shown in Table 1.

Its production process is to add base oil, oleyl alcohol polyoxyethylene ether with n=3, fatty acid amide, synthetic ester, tall oleic acid, monoethanolamine and triethanolamine into the blending kettle, stir for 10 minutes, and then add compound anti-corrosion Stir the rust agent for 10 minutes, continue to add water and anti-hard water agent, stir for 10 minutes, then add hexanediol and stir for 10 minutes, and finally add defoamer and stir for 40 minutes.

Comparative example 2

The components and weight percentages of the metal cutting fluid in this comparative example are as follows: 4.7% of fatty alcohol polyoxyethylene ether with n being 10, 4.9% of fatty acid amide, 3.5% of tall oleic acid, synthetic ester (Hostagliss L4 of Clariant Company) 8 %, butyl monoethanolamine 1%, butyl diethanolamine 2.2%, monoethanolamine 1%, triethanolamine 6%, anti-hard water agent (Enulsogen COL070 of Clariant Company) 0.5%, base oil (No. 32 industrial oil) 38.6% , compound antirust agent (Smart Base 9490 of Simin Company) 21.5%, water 8%, defoamer (HP777 of Mengqingxin Company) 0.1%, hexanediol 1.6%, as shown in Table 1, (butyl The molar ratio of monoethanolamine to butyldiethanolamine is 1:2.2).

The production process is as follows: base oil, fatty alcohol polyoxyethylene ether with n being 10 and fatty acid amide, synthetic ester, tall oleic acid, butyl monoethanolamine, butyldiethanolamine, monoethanolamine and triethanolamine are added to the blending tank In the process, stir for 10 minutes, then add compound anti-rust agent and stir for 10 minutes, continue to add water and anti-hard water agent, stir for 10 minutes, then add hexanediol and stir for 10 minutes, finally add defoamer and stir for 40 minutes.

Comparative example 3

The components and weight percentages of the metal cutting fluid in this comparative example are as follows: 4.5% fatty acid amide, 4.4% tall oleic acid, 8% synthetic ester (Hostagliss L4 from Clariant), 1% butyl monoethanolamine, and butyl diethanolamine 2.2%, monoethanolamine 1%, triethanolamine 6%, anti-hard water agent (Enulsogen COL 070 of Clariant Company) 0.5%, base oil (No. 32 industrial oil) 35%, composite antirust agent (Smart Base of Simin Company) 9490) 26.5%, water 10.8%, defoamer (HP777 of Mengqingxin Company) 0.1%, hexanediol 1.6%, as shown in Table 1, (the molar ratio of butyl monoethanolamine to butyl diethanolamine is 1 : 2.2).

Its production process is to add base oil, fatty acid amide, synthetic ester, tall oleic acid, butyl monoethanolamine, butyldiethanolamine, monoethanolamine and triethanolamine into the blending kettle, stir for 10 minutes, and then add compound antirust Stir for 10 minutes, continue to add water and anti-hard water agent, stir for 10 minutes, then add hexanediol and stir for 10 minutes, finally add defoamer and stir for 40 minutes.

Table 1

Performance Testing

Storage stability test of water-soluble oil

This method is based on accelerated test conditions to assess the stability of synthetic cutting fluid liquid water-soluble oil in storage and transportation. Put 50mL of water-soluble oil in a 100mL measuring cylinder with a stopper, put it in a constant temperature drying oven at 70±3°C for observation, take it out and cool it to room temperature (15-35°C) for 3 hours, observe again and evaluate it. Layer, phase transition and colloidal phenomenon, the results are shown in Table 2.

Table 2

As can be seen from the results of Examples 1-7 and Comparative Examples 1-3 in Table 2, Example 5 has the best effect, which shows that the application selects the oleyl alcohol polyoxyethylene ether with a degree of polymerization of 3-8 for the first additive and the second surface The active agent has a strong synergistic effect, which can significantly improve the long-term storage and high temperature stability of the water-soluble oil metal cutting fluid in this application. High temperature storage stability is the best. It can realize the long-term storage of water-soluble oil metal cutting fluid, and can maintain long-term stability in the environment of 70 ℃, which is convenient for long-distance transportation in summer.

It can be seen from the specific implementation manner that the water-soluble oil metal cutting fluid provided by the present invention can effectively improve the thermal conductivity of the product, protect the cutting tool and prolong its service life, and overcome the problems of long-term storage and high-temperature stability of water-soluble oil.

Claims (14)

1. a kind of water soluble oil metalworking fluid raw material, including base oil, surfactant, couplant, antirust complexing agent, defoamer And water, it is characterised in that the surfactant contains first surface activating agent and second surface activating agent, the first surface Activating agent is Brij, and the second surface activating agent includes in butyl monoethanolamine, butyl diethanolamine Plant or two kinds and organic carboxyl acid, the Brij structural formula is：

Wherein, R is C18H35, and polyoxyethylene segment polymerization degree n is 3-8.

2. cutting fluid raw material according to claim 1, it is characterised in that the n of the Brij is 4-6.

3. cutting fluid raw material according to claim 1, it is characterised in that based on the weight portion of cutting fluid raw material 100, The amount of one surfactant is 3-5 parts, and the amount of second surface activating agent is 1.5-8 parts.

4. cutting fluid raw material according to claim 1, it is characterised in that the second surface activating agent includes the second of butyl one The mixture of hydramine and butyl diethanolamine, butyl monoethanolamine is 1 with the mol ratio of butyl diethanolamine：3-3：1.

5. cutting fluid raw material according to claim 4, it is characterised in that the butyl monoethanolamine and butyl diethanolamine Mol ratio be 1：2-1：2.3.

6. cutting fluid raw material according to claim 1, it is characterised in that the organic carboxyl acid be selected from oleic acid, tall oil acid, One or more in ether carboxylic acid, ethylenediamine tetra-acetic acid.

7. cutting fluid raw material according to claim 1, it is characterised in that also contain three second in the second surface activating agent One or two in hydramine, monoethanolamine.

8. cutting fluid raw material according to claim 7, it is characterised in that based on the weight portion of cutting fluid raw material 100, fourth The amount of base monoethanolamine is 1-5 parts, and the amount of butyl diethanolamine is 0.5-3 parts, and the amount of triethanolamine is 0.5-7 parts, an ethanol The amount of amine is 0.5-3 parts.

9. the cutting fluid according to claim 1 or 7, it is characterised in that the surfactant also contains the 3rd surface and lives Property agent, the 3rd surfactant be fatty acid amide, based on the weight portion of cutting fluid raw material 100, the amount of fatty acid amide is 3-6 parts.

10. cutting fluid according to claim 9, it is characterised in that the HLB value of the surfactant is 10-13.

11. cutting fluid raw materials according to claim 1, it is characterised in that couplant is selected from hexylene glycol, hexylene glycol, two One or more in ethylene glycol monobutyl ether；Antirust complexing agent is selected from carboxylic acid type antirust agent, boric acid amine type antirust agent or phosphoric acid One or more in ester type antirust agent；Defoamer is selected from one or more in polyether-type defoamer or organic silicon defoamer； Base oil is selected from one or more in paraffinic base or naphthenic base oils.

12. cutting fluid raw materials according to claim 1, it is characterised in that the cutting fluid raw material also contains hard water resistance dose And/or synthetic fat.

The 13. cutting fluid raw material according to claim 1-12 any one, it is characterised in that the cutting fluid raw material includes Brij, fatty acid amide, tall oil acid, fatty acid ester, butyl monoethanolamine, butyl diethanolamine, an ethanol Amine, triethanolamine, ether carboxylic acid, No. 32 industry oils, boric acid amine type antirust agent, water, organic silicon defoamer, hexylene glycols, with the cutting On the basis of the gross weight of liquid raw material, described cutting fluid raw material respectively constitutes content and is respectively：Brij 3% ~ 5%, fat Fat acid acid amides 3% ~ 6%, tall oil acid 2% ~ 7%, fatty acid ester 6% ~ 12%, butyl monoethanolamine 1% ~ 5%, butyl diethanolamine 0.5% ~ 3%, monoethanolamine and triethanolamine add up to 1% ~ 10%, ether carboxylic acid 0.5% ~ 2%, No. 32 industry oils 20% ~ 40%, boric acid amine type antirust Agent 20% ~ 30%, water 1% ~ 27%, defoamer 0.05% ~ 0.25%, hexylene glycol 0.5% ~ 2.5%.

14. a kind of water soluble oil metalworking fluids, it is characterised in that the cutting fluid is described in claim 1-13 any one Metalworking fluid raw material is mixed to prepare.