CN117535090A

CN117535090A - Cutting fluid, metal material cutting fluid and metal working fluid

Info

Publication number: CN117535090A
Application number: CN202311538634.8A
Authority: CN
Inventors: 李少林; 黄宇
Original assignee: Guangzhou Miqi Chemical Co ltd
Current assignee: Guangzhou Miqi Chemical Co ltd
Priority date: 2023-11-17
Filing date: 2023-11-17
Publication date: 2024-02-09

Abstract

The application provides a cutting fluid, metal material cutting fluid and metal working fluid, the cutting fluid includes with its raw materials composition by weight percent: 40% -60% of polymeric ester, 3% -15% of nonionic surfactant, 3% -10% of anionic surfactant, 4% -15% of organic base, 6% -15% of coupling agent, 0.01% -1% of defoamer, 1% -23% of auxiliary agent and 5% -15% of water; the cutting fluid containing the polymerized ester is not easy to oxidize and hydrolyze, has good oxidation resistance stability, rust resistance, hard water resistance and excellent lubricating performance, can meet the processing under various heavy load environments, and has good biodegradability.

Description

Cutting fluid, metal material cutting fluid and metal working fluid

Technical Field

The present application relates to the field of metal cutting fluids, and in particular, to a cutting fluid, a metal material cutting fluid, and a metal working fluid.

Background

In recent years, compared with the traditional microemulsion semisynthetic cutting fluid and the pure oil type cutting fluid, the cutting fluid which uses the easily degradable ester synthesized by the vegetable oleic acid to replace part of the mineral oil base oil is continuously developed, but has the problem that the good processing effect is difficult to realize in heavy processing, or a large amount of additive is required to be added to meet the use condition, and the additive contains harmful substances such as sulfur, phosphorus, chlorine and the like, so that the environment is greatly polluted during the discharging.

From the use effect, although the cutting fluid using part of vegetable oil to replace mineral oil has better effect when the cutting fluid is just started to be used, as the processing time is longer in the use process, the hardness of metal ions is increased, the vegetable oil has poor oxidation resistance, the formed protective adsorption film is unstable, the emulsion is easy to hydrolyze Huang Yi to generate fatty acid and calcium, magnesium, iron, aluminum and other metal ions to form fatty acid soap adhesive polymer, the phenomenon of oil precipitation and soap precipitation occurs, the emulsion stability is reduced, the rust prevention lubricity is reduced, the protection of nonferrous metals is ineffective, and the problem of easy odor generation is also caused. The above problems result in that vegetable oils cannot be excessively used in cutting fluids, and thus vegetable oils are not often used in heavy-duty working environments such as working stainless steel or titanium alloys.

Disclosure of Invention

Accordingly, in order to improve the oxidation stability, rust resistance, hard water resistance, and lubricating properties of a cutting fluid using a vegetable oil as a main raw material without adding a mineral oil, it is necessary to provide a cutting fluid, a metal material cutting fluid, and a metal working fluid.

An embodiment of the application provides a cutting fluid, which comprises the following raw materials in percentage by weight:

40-60% of polymeric ester,

3-15% of nonionic surfactant,

3-10% of anionic surfactant,

4-15% of organic alkali,

6-15% of coupling agent,

0.01-1% of defoaming agent,

1% -23% of auxiliary agent

5% -15% of water;

the polymer ester comprises a first base polymer ester and a second base polymer ester with the mass ratio of (2-5) being 1, wherein the first base polymer ester comprises one or more of trimethylolpropane trioleate, isooctyl oleate, isooctyl palmitate and pentaerythritol ester, the second base polymer ester comprises one or more of vegetable oil modified self-emulsifying ester, tetra-polyricinoleate and dioctyl adipate, and the structural formula of the vegetable oil modified self-emulsifying ester is

Wherein R is ₁ Is->，R ₂ Is->，R ₃ Is->E is->。

In one embodiment, the first base polymeric ester is trimethylolpropane trioleate or isooctyl oleate and the second base polymeric ester is a vegetable oil modified self-emulsifying ester or tetrapolyricinoleate.

In one embodiment, the trimethylolpropane trioleate is prepared by esterification reaction of mixed fatty acid and trimethylolpropane, wherein the mixed fatty acid comprises 78% -85% of oleic acid, 8% -12% of linoleic acid and 3% -10% of C10-C12 fatty acid by mass percent.

In one embodiment, the nonionic surfactant comprises one or more of fatty alcohol polyoxyethylene polyoxypropylene ether, lauryl alcohol polyoxyethylene ether, sorbitan monooleate, castor oil polyoxyethylene ether, and alkylphenol polyoxyethylene ether.

In one embodiment, the anionic surfactant comprises one or more of a sulfonate type surfactant, a fatty acid salt type surfactant, a fatty acid type surfactant, and a carboxylate type surfactant.

In one embodiment, the auxiliary agent comprises (2-10): 1-5): 0.5-3 antirust agent, antioxidant, hard water resisting agent and bactericide in mass ratio.

In one embodiment, one or more of the following conditions are satisfied:

(1) The antirust agent comprises one or more of benzotriazole, dimer acid, C10-C21 dibasic acid and tribasic acid;

(2) The antioxidant comprises one or more of 2, 6-di-tert-butyl-p-cresol, butyl hydroxy anisole, tert-butyl hydroquinone and zinc dialkyl dithiophosphate;

(3) The hard water resistant agent comprises one or two of oleyl alcohol ether carboxylic acid and fatty alcohol ether carboxylic acid;

(4) The bactericide comprises one or more of isothiazolinone bactericides, hexahydro-1, 3, 5-tri (2-hydroxyethyl) -S-triazine, phenoxyethanol, morpholine derivatives and dimorpholine derivatives;

(5) The organic base comprises one or more of diethanolamine, triethanolamine, methyldiethanolamine and diglycolamine;

(6) The coupling agent comprises one or more of isomerism tridecanol, isomerism pentadecanol, C14-C16 guerbet alcohol and dipropylene glycol monobutyl ether;

(7) The defoamer comprises one or two of polyether defoamer and alkyne diol defoamer.

The application also provides a metal material cutting fluid, which comprises the cutting fluid.

In one embodiment, the metallic material does not include magnesium and magnesium alloys.

Still further, the present application also provides a metal working fluid, including the cutting fluid described above or the cutting fluid for a metal material described above.

The cutting fluid without mineral oil has the advantages that the mineral oil is completely replaced by the polymer ester with specific composition, and the cutting fluid is not easy to oxidize and hydrolyze after being compounded with other raw materials, has good oxidation resistance stability, rust resistance, hard water resistance and excellent lubricating property, and can meet the processing under various heavy load environments; the addition of other additives can ensure that the processing performance is not affected, and the biodegradable plastic has good biodegradability.

Drawings

FIG. 1 is a graph showing the results of stability test of the working liquid of 400ppm hard water, wherein the mass percentage of the working liquid of the cutting liquid of the examples and the comparative examples is 10%;

FIG. 2 is a graph showing the results of rust prevention tests performed on the cutting fluid of the example;

FIG. 3 is a graph showing the results of rust prevention tests performed on the cutting fluid of the comparative example;

fig. 4 is a graph showing the results of the cutting fluid lubricity test of the examples and the comparative examples.

Detailed Description

This application may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

The words "preferably," "more preferably," and the like in the present application refer to embodiments of the present application that may provide certain benefits in some instances. However, other embodiments may be preferred under the same or other circumstances. Furthermore, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the application.

When a range of values is disclosed herein, the range is considered to be continuous and includes both the minimum and maximum values for the range, as well as each value between such minimum and maximum values. Further, when a range refers to an integer, each integer between the minimum and maximum values of the range is included. Further, when multiple range description features or characteristics are provided, the ranges may be combined. In other words, unless otherwise indicated, all ranges disclosed herein are to be understood to include any and all subranges subsumed therein.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

40-60% of polymeric ester,

3-15% of nonionic surfactant,

3-10% of anionic surfactant,

4-15% of organic alkali,

6-15% of coupling agent,

0.01-1% of defoaming agent,

1% -23% of auxiliary agent

5% -15% of water;

the polymer ester comprises a first basic polymer ester and a second polymer ester in a mass ratio of (2-5): 1, wherein the first basic polymer ester comprises one or more of trimethylolpropane trioleate, isooctyl oleate, isooctyl palmitate and pentaerythritol ester, the second basic polymer ester comprises one or more of vegetable oil modified self-emulsifying ester, tetra-polyricinoleate and dioctyl adipate, and the structural formula of the vegetable oil modified self-emulsifying ester is as followsWherein R is ₁ Is that，R ₂ Is->，R ₃ Is->E is->。

In one specific example, the first base polymeric ester is trimethylolpropane trioleate or isooctyl oleate and the second base polymeric ester is a vegetable oil modified self-emulsifying ester or tetrapolyricinoleate.

In a specific example, the trimethylolpropane trioleate is prepared by esterification reaction of mixed fatty acid and trimethylolpropane, wherein the mixed fatty acid comprises 78% -85% of oleic acid, 8% -12% of linoleic acid and 3% -10% of C10-C12 fatty acid by mass percent.

Preferably, the self-emulsifying ester with high performance and multiple functional groups has more branched chains with special structures, is easy to dissolve in water after being neutralized by amine, has lubricating, emulsifying and rust preventing properties, has excellent compatibility and can be dissolved with other polymer esters without precipitation. The two kinds of esters are matched and used to form a thick and stable lubricating protective film structure on the metal surface, so that the lubricating protective film structure has excellent lubricating property, can meet the lubricating property requirements of various processing, can be degraded in the natural environment without polluting the environment, and the raw materials are renewable resources from the natural world.

The trimethylolpropane trioleate not only has a special structure, but also can be well adsorbed on the metal surface to form a firm protective oil film structure.

In a specific example, the auxiliary agent comprises (2-10): 1-5): 0.5-3 (mass ratio) of antirust agent, antioxidant, water-hardening agent and bactericide.

In one specific example, the nonionic surfactant includes one or more of fatty alcohol polyoxyethylene polyoxypropylene ether, laurinol polyoxyethylene ether, sorbitan monooleate, castor oil polyoxyethylene ether, and alkylphenol polyoxyethylene ether.

In one specific example, the anionic surfactant includes one or more of a sulfonate-type surfactant, a fatty acid salt-type surfactant, a fatty acid-type surfactant, and a carboxylate-type surfactant.

The anionic surfactant and the nonionic surfactant can well emulsify the oil-soluble polymer ester and water, so that the cutting fluid is stable without oil precipitation and soap separation.

In one specific example, the antioxidant includes one or more of 2, 6-di-tert-butyl-p-cresol, butyl hydroxy anisole, tert-butyl hydroquinone, and zinc dialkyldithiophosphate.

In one specific example, the hard water resistant agent includes one or more of an oleyl alcohol ether carboxylic acid and a fatty alcohol ether carboxylic acid.

The hard water resisting agent is preferably fatty alcohol ether polyoxyethylene ether carboxylic acid with a longer carbon chain, the foam generation amount is relatively low, and the alcohol is matched with heterogeneous C15 alcohol, so that the alcohol not only has good calcium soap dispersing capability, but also is helpful for assisting sterilization. Innovative changes in hard water resistance have been considered in designing the overall formulation system, and fatty acids such as 7070/7075 oleic acid which are easy to generate soap with calcium and magnesium ions are not basically used in the formulation, so that the cutting fluid of the application fundamentally suppresses the congenital condition of generating fatty acid soap in hard water resistance, and excellent hard water stability effect can be achieved by adding the alcohol ether carboxylic acid and the isomeric alcohol.

In one specific example, the rust inhibitor includes one or more of dimer acid, C10-C21 dibasic acid, and tribasic acid.

Further, the C10-C21 dibasic acid comprises one or more of dodecadiacid, sebacic acid and C21 dibasic acid.

Boric acid and any boron-containing antirust agent are not used in the method, and the 21-carbon dibasic acid of sebacic acid and miqi (CAS number 53980-88-4) and methyl diethanolamine MDEA are used as the antirust agent in the formula proportion, are heated at 55 ℃ for fully reacting for 30min and then are mixed into the formula, so that the neutralization reaction is fully performed, the antirust effect is optimal, and the pH value of the cutting fluid can be kept stable and does not have larger fluctuation.

In one specific example, the organic base includes one or more of diethanolamine, triethanolamine, methyldiethanolamine, and diglycolamine.

The polymeric ester and amine can be adsorbed to form a protective film on the surface of metal after being neutralized, so that the metal is not corroded by cutting fluid, and particularly, the cutting fluid is basically free of corrosion to nonferrous metal due to the fact that the methyl diethanolamine MDEA is selected.

In a specific example, the coupling agent comprises one or more of isomerised tridecanol, isomerised pentadecanol, C14-C16 guerbet alcohol and dipropylene glycol monobutyl ether.

In one specific example, the germicides include one or more of isothiazolinone germicides, hexahydro-1, 3, 5-tris (2-hydroxyethyl) -S-triazine, phenoxyethanol, morpholine derivatives, and dimorpholine derivatives.

The cutting fluid system is not applicable to formaldehyde-containing release bactericides, but preferably uses isothiazolinone bactericides and is matched with auxiliary bactericides of isomeric alcohols in the coupling agent, and the cutting fluid system is environment-friendly and has lasting sterilizing effect, so that the cutting fluid is not odorized after long-term use.

In one specific example, the defoamer includes one or both of a polyether defoamer and an acetylenic diol defoamer.

Further, polyether defoamers include polyether modified silicone defoamers and synthetic polyether defoamers.

In a specific example, the composition of the raw materials comprises, in weight percent:

43% -53% of polymeric ester,

5-12% of nonionic surfactant,

4-8% of anionic surfactant,

3-6% of rust inhibitor,

5-10% of organic alkali,

8-12% of coupling agent,

1.5-3.5% of antioxidant,

1-4% of a hardening agent,

1 to 2.5 percent of bactericide,

Defoaming agent 0.05% -0.5%

8% -1% of water.

In one specific example, the metallic material does not include magnesium and magnesium alloys.

The cutting fluid without mineral oil takes the oleic acid ester synthesized by saturated animal oleic acid or vegetable oleic acid as the polymeric ester, and the polymeric ester compounded with the defined polymeric ester can completely replace mineral oil, and the cutting fluid containing the polymeric ester is not easy to oxidize and hydrolyze, has good oxidation resistance stability, rust resistance, hard water resistance and excellent lubricating property, and can meet the processing under various heavy load environments; the addition of other additives can ensure that the processing performance is not affected, and the biodegradable plastic has good biodegradability.

Specific examples are provided below to illustrate the cutting fluids of the present application in further detail. The raw materials according to the following embodiments may be commercially available unless otherwise specified. Miq nonionic C16-C18 low foaming surfactant 350 (fatty alcohol polyoxyethylene polyoxypropylene ether, CAS No. 68002-96-0) and trimethylolpropane trioleate (TMPTO) CAS No. 57675-44-2, available from Klk company, malaysia.

Example 1

The composition of the cutting fluid provided by the embodiment in mass percent is as follows:

6% of methyl diethanolamine,

3% of Mickey C21 dibasic acid,

10% of water,

1% of sebacic acid,

Benzotriazole T7060.3 percent,

36.6% of trimethylolpropane trioleate,

Antioxidant ZDDP 2%),

1510% of isomeric fatty alcohol C,

18210% of Mickey modified vegetable oil-based synthetic ester with low acid value,

Sodium petroleum sulfonate 1649H6%,

Mitigl ether carboxylic acid HW12090.5%,

The Mickey nonionic low-foam surface activity is 3505 percent,

Sorbitan monooleate SP802%,

Castor oil polyoxyethylene ether EL123%,

M28B2.5% of tall oil acid,

MIT201 percent of bactericide,

Bactericide BIT201%

The defoamer is midget FUNTAGDF9020.1 percent.

Example 2

6% of methyl diethanolamine,

3% of dimer acid,

10% of water,

1% of sebacic acid,

Benzotriazole T7060.3 percent,

36.6% of trimethylolpropane trioleate,

Antioxidant ZDDP 2%),

1510% of isomeric fatty alcohol C,

Sodium petroleum sulfonate 1649H6%,

Mitigl ether carboxylic acid HW12090.5%,

The Mickey nonionic low-foam surface activity is 3505 percent,

Sorbitan monooleate SP802%,

Castor oil polyoxyethylene ether EL123%,

M28B2.5% of tall oil acid,

MIT201 percent of bactericide,

Bactericide BIT201%

The defoamer is midget FUNTAGDF9020.1 percent.

Example 3

6% of methyl diethanolamine,

3% of Mickey C21 dibasic acid,

10% of water,

1% of sebacic acid,

Benzotriazole T7060.3 percent,

36.6% of isooctyl oleate,

Antioxidant ZDDP 2%),

1510% of isomeric fatty alcohol C,

Sodium petroleum sulfonate 1649H6%,

Mitigl ether carboxylic acid HW12090.5%,

The Mickey nonionic low-foam surface activity is 3505 percent,

Sorbitan monooleate SP802%,

Castor oil polyoxyethylene ether EL123%,

M28B2.5% of tall oil acid,

MIT201 percent of bactericide,

Bactericide BIT201%

The defoamer is midget FUNTAGDF9020.1 percent.

Example 4

6% of methyl diethanolamine,

3% of Mickey C21 dibasic acid,

10% of water,

1% of sebacic acid,

0.3% of benzotriazole T706,

36.6% of trimethylolpropane trioleate,

Antioxidant ZDDP 2%),

15% of isomeric fatty alcohol C10%,

10% of tetra-polyricinoleate,

Sodium petroleum sulfonate 1649H6%,

Michelia alcohol ether carboxylic acid HW 1209.5%,

Mickey nonionic low-foam surface activity 350 percent,

Sorbitan monooleate SP 80% 2%,

12% of castor oil polyoxyethylene ether EL,

Tall oil acid M28B2.5%,

20 percent of bactericide MIT,

Bactericide BIT 20% 1%

0.1% of defoamer Mickey FUNTAGDF 902.

Example 5

6% of methyl diethanolamine,

3% of Mickey C21 dibasic acid,

10% of water,

1% of sebacic acid,

0.3% of benzotriazole T706,

36.6% of trimethylolpropane trioleate,

Antioxidant ZDDP 2%),

10% of isomerised tridecanol,

182 percent of Mickey modified vegetable oil based synthetic ester with low acid value,

Sodium petroleum sulfonate 1649H6%,

Michelia alcohol ether carboxylic acid HW 1209.5%,

Mickey nonionic low-foam surface activity 350 percent,

Sorbitan monooleate SP 80% 2%,

12% of castor oil polyoxyethylene ether EL,

Tall oil acid M28B2.5%,

20 percent of bactericide MIT,

Bactericide BIT 20% 1%

0.1% of defoamer Mickey FUNTAGDF 902.

Example 6

6% of diethanolamine,

3% of Mickey C21 dibasic acid,

10% of water,

1% of sebacic acid,

0.3% of benzotriazole T706,

36.6% of trimethylolpropane trioleate,

Antioxidant ZDDP 2%),

15% of isomeric fatty alcohol C10%,

Sodium petroleum sulfonate 1649H6%,

Michelia alcohol ether carboxylic acid HW 1209.5%,

Mickey nonionic low-foam surface activity 350 percent,

Sorbitan monooleate SP 80% 2%,

12% of castor oil polyoxyethylene ether EL,

Tall oil acid M28B2.5%,

20 percent of bactericide MIT,

Bactericide BIT 20% 1%

0.1% of defoamer Mickey FUNTAGDF 902.

Comparative example 1

The cutting fluid provided in the comparative example comprises the following components in percentage by mass:

4% of monoethanolamine,

1% of Mickey C21 dibasic acid,

14% of water,

1% of sebacic acid,

0.3% of benzotriazole T706,

36.6% of trimethylolpropane trioleate,

Antioxidant ZDDP 2%),

15% of isomeric fatty alcohol C10%,

Sodium petroleum sulfonate 1649H6%,

Michelia alcohol ether carboxylic acid HW 1209.5%,

Mickey nonionic low-foam surface activity 350 percent,

Sorbitan monooleate SP 80% 2%,

12% of castor oil polyoxyethylene ether EL,

Tall oil acid M28B2.5%,

20 percent of bactericide MIT,

Bactericide BIT 20% 1%

0.1% of defoamer Mickey FUNTAGDF 902.

Comparative example 2

6% of methyl diethanolamine,

3% of Mickey C21 dibasic acid,

15% of water,

1% of sebacic acid,

0.3% of benzotriazole T706,

36.6% of trimethylolpropane trioleate,

Antioxidant ZDDP 2%),

15% of isomeric fatty alcohol C,

3952 10% of self-emulsifying ester,

Sodium petroleum sulfonate 1649H6%,

Michelia alcohol ether carboxylic acid HW 1209.5%,

Mickey nonionic low-foam surface activity 350 percent,

Sorbitan monooleate SP 80% 2%,

12% of castor oil polyoxyethylene ether EL,

Tall oil acid M28B2.5%,

20 percent of bactericide MIT,

Bactericide BIT 20% 1%

0.1% of defoamer Mickey FUNTAGDF 902.

Comparative example 3

6% of methyl diethanolamine,

3% of Mickey C21 dibasic acid,

20% of water,

1% of sebacic acid,

0.3% of benzotriazole T706,

31.6% of trimethylolpropane trioleate,

Antioxidant ZDDP 2%),

15% of isomeric fatty alcohol C,

3955 10% of self-emulsifying ester,

Sodium petroleum sulfonate 1649H6%,

Michelia alcohol ether carboxylic acid HW 1209.5%,

Mickey nonionic low-foam surface activity 350 percent,

Sorbitan monooleate SP 80% 2%,

12% of castor oil polyoxyethylene ether EL,

Tall oil acid M28B2.5%,

20 percent of bactericide MIT,

Bactericide BIT 20% 1%

0.1% of defoamer Mickey FUNTAGDF 902.

Comparative example 4

6% of methyl diethanolamine,

3% of Mickey C21 dibasic acid,

12% of water,

1% of sebacic acid,

0.3% of benzotriazole T706,

41.6% of trimethylolpropane trioleate,

Antioxidant ZDDP 0%),

15% of isomeric fatty alcohol C,

Sodium petroleum sulfonate 1649H6%,

Michelia alcohol ether carboxylic acid HW 1209.5%,

Mickey nonionic low-foam surface activity 350 percent,

Sorbitan monooleate SP 80% 2%,

12% of castor oil polyoxyethylene ether EL,

Tall oil acid M28B2.5%,

20 percent of bactericide MIT,

Bactericide BIT 20% 1%

0.1% of defoamer Mickey FUNTAGDF 902.

Comparative example 5

6% of methyl diethanolamine,

3% of Mickey C21 dibasic acid,

10% of water,

1% of sebacic acid,

0.3% of benzotriazole T706,

15# 36.6% naphthenic oil,

Antioxidant ZDDP 2%),

15% of isomeric fatty alcohol C10%,

Sodium petroleum sulfonate 1649H6%,

Michelia alcohol ether carboxylic acid HW 1209.5%,

Mickey nonionic low-foam surface activity 350 percent,

Sorbitan monooleate SP 80% 2%,

12% of castor oil polyoxyethylene ether EL,

Tall oil acid M28B2.5%,

20 percent of bactericide MIT,

Bactericide BIT 20% 1%

0.1% of defoamer Mickey FUNTAGDF 902.

Comparative example 6

The composition of the cutting fluid provided in the comparative example in mass percent is as follows:

6% of methyl diethanolamine,

3% of Mickey C21 dibasic acid,

10.5% of water,

1% of sebacic acid,

0.3% of benzotriazole T706,

30# 36.6% naphthenic oil,

Antioxidant ZDDP 2%),

15% of isomeric fatty alcohol C10%,

Sodium petroleum sulfonate 1649H6%,

Michelia alcohol ether carboxylic acid HW 1209% and 0%,

Mickey nonionic low-foam surface activity 350 percent,

Sorbitan monooleate SP 80% 2%,

12% of castor oil polyoxyethylene ether EL,

Tall oil acid M28B2.5%,

20 percent of bactericide MIT,

Bactericide BIT 20% 1%

0.1% of defoaming agent Mickey FUNTAGDF902,

Comparative example 7

6% of methyl diethanolamine,

3% of Mickey C21 dibasic acid,

10% of water,

1% of sebacic acid,

0.3% of benzotriazole T706,

41.6% of trimethylolpropane trioleate,

Antioxidant ZDDP 2%),

15% of isomeric fatty alcohol C,

Sodium petroleum sulfonate 1649H6%,

Michelia alcohol ether carboxylic acid HW 1209.5%,

Nonionic surfactant AEO-3 5%,

Sorbitan monooleate SP 80% 2%,

12% of castor oil polyoxyethylene ether EL,

Tall oil acid M28B2.5%,

20 percent of bactericide MIT,

Bactericide BIT 20% 1%

0.1% of defoamer Mickey FUNTAGDF 902.

Application test tests were performed by taking the cutting fluids of examples 1, 2, 3, 4, 5, 6 and comparative examples 1, 2, 3, 4, 5, 6, 7, and specific experimental steps and results are as follows:

1. the method comprises the steps of raw liquid of cutting fluid, tap water diluent with the mass percentage of the cutting fluid being 10%, and hard water working fluid with the mass percentage of the cutting fluid being 400ppm, wherein the hydrolysis cycle experiment simulating the field use environment of the cutting fluid is used for measuring the comprehensive stability of the cutting fluid.

(1) The experimental stock solution stability test method comprises the following steps: the results of the experiment are shown in the following table, as observed in an oven at 55℃for 1 month.

(2) A tap water diluent with the mass percent of 10% of the cutting fluid is prepared, the pH value is measured, the diluent is placed in a 55 ℃ oven to observe the stability of the state of the diluent, the diluent is continuously observed for 30 days, the state is recorded every 10 days, the pH value change is measured, and the experimental results are shown in the following table.

The stock solution and the working solution are stable for a long time, the pH value is changed between 8.0 and 8.90, the stability of the cutting fluid can be ensured, the large fluctuation is avoided, and the processing requirements of most ferrous metals and nonferrous metals in the current stage can be better met.

(3) Preparing 400ppm hard water working solution with the mass percent of 10% of cutting fluid, continuously circulating the working solution in a 2L large-scale cylinder by using a circulating pump, sealing a port by using a film, heating the port in a water bath box at 55 ℃, continuously heating the water bath box for 6 months by using the water bath box to circulate for observing the state of the whole circulating solution and the change of pH value, and testing the cutting fluid of the examples 1,3 and 6 and the comparative examples 1, 4 and 7 by extracting the test results shown in the following table, wherein the effect diagram is shown in figure 1:

2. hard water resistance test

Since the concentration of hard water processed by the metal working fluid is generally not more than 800ppm, mgCl as a chemical reagent is used ₂ .6H ₂ O and CaCl ₂ 800ppm of calcium-magnesium hard water was prepared from tap water, 10% of 800ppm of magnesium hard water dilution was prepared from the cutting fluids of examples and comparative examples, and the state of the dilution was observed after 15 days of standing at normal temperature, as shown in the following table:

3. nonferrous metal aluminum alloy corrosion test

Preparing a water diluent with the mass percent of 10% of the cutting fluid in the embodiment and the comparative embodiment, polishing and brightening aluminum ADC12, aluminum 6061 and aluminum 7075 of common aluminum alloy sheets in the market, wiping aluminum powder on a polished surface with alcohol, semi-soaking the polished aluminum alloy sheets in the water diluent with the mass percent of 10% of the prepared cutting fluid in a 55 ℃ oven, observing corrosion conditions after 3 hours, and summarizing the corrosion conditions to the following table:

IP287 Rust prevention test

With chemical agent CaSO ₄ ·2H ₂ Preparing an IP287 aqueous solution by O and distilled water, preparing an IP287 aqueous diluent with the cutting fluid of the example and the comparative example, uniformly spreading 2g of scrap iron on 3.5cm multiplied by 3.5cm filter paper on a culture dish, taking 2ml of the IP287 aqueous diluent with the mass percent of 3% and uniformly dripping the IP287 aqueous diluent on the scrap iron, covering a culture dish cover, standing for 2 hours at room temperature, washing the scrap iron with clear water, drying in a baking oven at 30 ℃, observing the area of rust left on the filter paper, and testing the test results shown in the following table, wherein the results are shown in the graph of FIG. 2 and the graph of FIG. 3.

5. Lubricity test

Tap water dilutions of 10% by mass of the cutting fluids were prepared using the cutting fluids of examples 1, 2, 4, 6 and comparative examples 1,3,5, 7, and tapping torque lubricity tests (comparative conditions: 7075 aluminum alloy sheet, 1500rpm,300 ncm) were performed on 7075 aluminum alloy sheet, and the results were as follows, wherein a smaller Mean (average value of torque force consumption) indicates a better lubricity, and the test results are shown in the following table and fig. 4.

The novel environment-friendly ester-based cutting fluid without mineral oil has excellent lubricity, ensures that oxidation and hydrolysis are not easy to occur when the novel environment-friendly ester-based cutting fluid is used for a long time, is an important basic premise of being stable for a long time, and can slow down the hydrolysis of esters in the cutting fluid under the cooperation of organic alkali, so that the hydrolysis reaction is slowed down to be favorable for emulsion stability. The cutting fluid is matched with the functions of other raw materials to finally realize good lubricity, rust resistance, nonferrous metal protection and hard water stability, can reach and even be superior to the conventional cutting fluid containing mineral oil in the market, can meet the processing of ferrous metal and nonferrous metal in most occasions, and particularly can be used for processing heavy loads such as stainless steel and titanium alloy.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples merely represent a few embodiments of the present application, which facilitate a specific and detailed understanding of the technical solutions of the present application, but are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. It should be understood that those skilled in the art, based on the technical solutions provided in the present application, can obtain technical solutions through logical analysis, reasoning or limited experiments, all fall within the protection scope of the claims attached to the present application. The scope of the patent application is therefore intended to be indicated by the appended claims, and the description may be used to interpret the contents of the claims.

Claims

1. The cutting fluid is characterized by comprising the following raw materials in percentage by weight:

40-60% of polymeric ester,

3-15% of nonionic surfactant,

3-10% of anionic surfactant,

4-15% of organic alkali,

6-15% of coupling agent,

0.01-1% of defoaming agent,

1% -23% of auxiliary agent

5% -15% of water;

Wherein R is ₁ Is->，R ₂ Is->，R ₃ Is->E is-> 。

2. The cutting fluid of claim 1, wherein the first base polymeric ester is trimethylolpropane trioleate or isooctyl oleate and the second base polymeric ester is a vegetable oil modified self-emulsifying ester or tetrapolyricinoleate.

3. The cutting fluid as claimed in claim 1, wherein the trimethylolpropane trioleate is prepared by esterification reaction of a mixed fatty acid and trimethylolpropane, and the mixed fatty acid comprises 78% -85% of oleic acid, 8% -12% of linoleic acid and 3% -10% of C10-C12 fatty acid by mass percent.

4. The cutting fluid of claim 1, wherein the nonionic surfactant comprises one or more of fatty alcohol polyoxyethylene polyoxypropylene ether, laurinol polyoxyethylene ether, sorbitan monooleate, castor oil polyoxyethylene ether, and alkylphenol polyoxyethylene ether.

5. The cutting fluid of claim 1, wherein the anionic surfactant comprises one or more of a sulfonate-type surfactant, a fatty acid salt-type surfactant, a fatty acid-type surfactant, and a carboxylate-type surfactant.

6. The cutting fluid as claimed in any one of claims 1 to 5, wherein the auxiliary agent comprises (2 to 10): 1 to 5): 0.5 to 3 by mass ratio of rust inhibitor, antioxidant, hard water inhibitor and bactericide.

7. The cutting fluid of claim 6, wherein one or more of the following conditions are satisfied:

(1) The antirust agent comprises one or more of dimer acid, C10-C21 dibasic acid and tribasic acid;

8. A metal material cutting fluid comprising the cutting fluid according to any one of claims 1 to 7.

9. The metal material cutting fluid of claim 8, wherein the metal material does not include magnesium and magnesium alloys.

10. A metal working fluid comprising the cutting fluid according to any one of claims 1 to 7 or the metal material cutting fluid according to claim 8 or 9.